git.delta.rocks / unique-network / refs/commits / 3fb62366cc89

difftreelog

Merge pull request #153 from usetech-llc/feature/NFTPAR-536_code_style

usetech-llc2021-07-08parents: #d08f396 #ad8b982.patch.diff
in: master
Enforce codestyle

117 files changed

modified.devcontainer/devcontainer.jsondiffbeforeafterboth
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -12,7 +12,8 @@
 		}
 	},
 	"extensions": [
-		"matklad.rust-analyzer"
+		"matklad.rust-analyzer",
+		"dbaeumer.vscode-eslint"
 	],
 	"remoteUser": "vscode"
 }
added.github/workflows/codestyle.ymldiffbeforeafterboth
--- /dev/null
+++ b/.github/workflows/codestyle.yml
@@ -0,0 +1,37 @@
+name: Code style
+
+on: [push]
+
+jobs:
+  rustfmt:
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: Install latest nightly
+        uses: actions-rs/toolchain@v1
+        with:
+            toolchain: nightly
+            default: true
+            target: wasm32-unknown-unknown
+            components: rustfmt, clippy
+      - name: Run cargo fmt
+        run: cargo fmt -- --check
+
+  clippy:
+    if: ${{ false }}
+    runs-on: ubuntu-20.04
+
+    steps:
+      - uses: actions/checkout@v1
+      - name: Install substrate dependencies
+        run: sudo apt-get install libssl-dev pkg-config libclang-dev clang
+      - name: Install latest nightly
+        uses: actions-rs/toolchain@v1
+        with:
+            toolchain: nightly
+            default: true
+            target: wasm32-unknown-unknown
+            components: rustfmt, clippy
+      - name: Run cargo check
+        run: cargo clippy -- -Dwarnings
added.github/workflows/tests_codestyle.ymldiffbeforeafterboth
--- /dev/null
+++ b/.github/workflows/tests_codestyle.yml
@@ -0,0 +1,14 @@
+name: Tests code style
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-20.04
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Install modules
+      run: cd tests && yarn
+    - name: Run ESLint
+      run: cd tests && yarn eslint --ext .ts,.js src/
\ No newline at end of file
added.rustfmt.tomldiffbeforeafterboth
--- /dev/null
+++ b/.rustfmt.toml
@@ -0,0 +1,2 @@
+hard_tabs = true
+reorder_imports = false
\ No newline at end of file
added.vscode/extensions.jsondiffbeforeafterboth
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,5 @@
+{
+    "recommendations": [
+        "dbaeumer.vscode-eslint"
+    ]
+}
\ No newline at end of file
added.vscode/settings.jsondiffbeforeafterboth
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,9 @@
+{
+    "eslint.format.enable": true,
+    "[javascript]": {
+        "editor.defaultFormatter": "dbaeumer.vscode-eslint"
+    },
+    "[typescript]": {
+        "editor.defaultFormatter": "dbaeumer.vscode-eslint"
+    }
+}
\ No newline at end of file
modifiedCargo.lockdiffbeforeafterboth
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5996,34 +5996,34 @@
 [[package]]
 name = "pallet-scheduler"
 version = "3.0.0"
-source = "git+https://github.com/paritytech/substrate.git?branch=polkadot-v0.9.3#c94e0cdfe5556680dca1996004751eeb114755d7"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
  "frame-system",
  "log",
  "parity-scale-codec 2.1.3",
+ "serde",
+ "sp-core",
  "sp-io",
  "sp-runtime",
  "sp-std",
+ "substrate-test-utils",
+ "up-sponsorship",
 ]
 
 [[package]]
 name = "pallet-scheduler"
 version = "3.0.0"
+source = "git+https://github.com/paritytech/substrate.git?branch=polkadot-v0.9.3#c94e0cdfe5556680dca1996004751eeb114755d7"
 dependencies = [
  "frame-benchmarking",
  "frame-support",
  "frame-system",
  "log",
  "parity-scale-codec 2.1.3",
- "serde",
- "sp-core",
  "sp-io",
  "sp-runtime",
  "sp-std",
- "substrate-test-utils",
- "up-sponsorship",
 ]
 
 [[package]]
modifiedREADME.mddiffbeforeafterboth
--- a/README.md
+++ b/README.md
@@ -228,3 +228,26 @@
 ## Running Integration Tests
 
 See [tests/README.md](./tests/README.md).
+
+## Code Formatting
+
+### Get formatter and linter settings into your branch (if you forked before they were introduced)
+```bash
+git cherry-pick -n 8ff77c21b0d30b2a4648fa35dbf61dfa9d3948a7
+```
+
+### Apply formatting and clippy fixes
+```bash
+cargo clippy
+cargo fmt
+```
+
+### Format tests
+```bash
+pushd tests && yarn fix ; popd
+```
+
+### Check code style in tests
+```bash
+cd tests && yarn eslint --ext .ts,.js src/
+```
\ No newline at end of file
modifiedcrates/evm-coder-macros/src/lib.rsdiffbeforeafterboth
--- a/crates/evm-coder-macros/src/lib.rs
+++ b/crates/evm-coder-macros/src/lib.rs
@@ -1,3 +1,5 @@
+#![allow(dead_code)]
+
 use darling::FromMeta;
 use inflector::cases;
 use proc_macro::TokenStream;
modifiedcrates/evm-coder-macros/src/solidity_interface.rsdiffbeforeafterboth
--- a/crates/evm-coder-macros/src/solidity_interface.rs
+++ b/crates/evm-coder-macros/src/solidity_interface.rs
@@ -1,3 +1,5 @@
+#![allow(dead_code)]
+
 use quote::quote;
 use darling::FromMeta;
 use inflector::cases;
@@ -262,7 +264,7 @@
 			ReturnType::Type(_, ty) => ty,
 			_ => return Err(syn::Error::new(value.sig.output.span(), "interface method should return Result<value>\nif there is no value to return - specify void (which is alias to unit)")),
 		};
-		let result = parse_result_ok(&result)?;
+		let result = parse_result_ok(result)?;
 
 		let camel_name = info
 			.rename_selector
@@ -283,8 +285,8 @@
 		Ok(Self {
 			name: ident.clone(),
 			camel_name,
-			pascal_name: snake_ident_to_pascal(&ident),
-			screaming_name: snake_ident_to_screaming(&ident),
+			pascal_name: snake_ident_to_pascal(ident),
+			screaming_name: snake_ident_to_screaming(ident),
 			selector_str,
 			selector,
 			args,
@@ -431,7 +433,7 @@
 						found_error = true;
 					}
 				}
-				TraitItem::Method(method) => methods.push(Method::try_from(&method)?),
+				TraitItem::Method(method) => methods.push(Method::try_from(method)?),
 				_ => {}
 			}
 		}
@@ -545,6 +547,7 @@
 				#(
 					#call_inner
 				)*
+				#[allow(unreachable_code)] // In case of no inner calls
 				fn call(&mut self, c: Msg<#call_name>) -> ::core::result::Result<::evm_coder::abi::AbiWriter, Self::Error> {
 					use ::evm_coder::abi::AbiWrite;
 					type InternalCall = #call_name;
modifiedcrates/evm-coder-macros/src/to_log.rsdiffbeforeafterboth
--- a/crates/evm-coder-macros/src/to_log.rs
+++ b/crates/evm-coder-macros/src/to_log.rs
@@ -41,7 +41,7 @@
 impl Event {
 	fn try_from(variant: &Variant) -> syn::Result<Self> {
 		let name = &variant.ident;
-		let name_screaming = snake_ident_to_screaming(&name);
+		let name_screaming = snake_ident_to_screaming(name);
 
 		let named = match &variant.fields {
 			Fields::Named(named) => named,
@@ -54,7 +54,7 @@
 		};
 		let mut fields = Vec::new();
 		for field in &named.named {
-			fields.push(EventField::try_from(&field)?);
+			fields.push(EventField::try_from(field)?);
 		}
 		let mut selector_str = format!("{}(", name);
 		for (i, arg) in fields.iter().enumerate() {
modifiedcrates/evm-coder/src/abi.rsdiffbeforeafterboth
--- a/crates/evm-coder/src/abi.rs
+++ b/crates/evm-coder/src/abi.rs
@@ -104,7 +104,7 @@
 	fn subresult(&mut self) -> Result<AbiReader<'i>> {
 		let offset = self.read_usize()?;
 		Ok(AbiReader {
-			buf: &self.buf,
+			buf: self.buf,
 			offset: offset + self.offset,
 		})
 	}
@@ -252,7 +252,7 @@
 impl_abi_writeable!(&str, string);
 impl AbiWrite for &string {
 	fn abi_write(&self, writer: &mut AbiWriter) {
-		writer.string(&self)
+		writer.string(self)
 	}
 }
 
modifiedcrates/evm-coder/tests/a.rsdiffbeforeafterboth
--- a/crates/evm-coder/tests/a.rs
+++ b/crates/evm-coder/tests/a.rs
@@ -1,3 +1,5 @@
+#![allow(dead_code)] // This test only checks that macros is not panicking
+
 use evm_coder::{solidity_interface, types::*, ToLog};
 use evm_coder_macros::solidity;
 
modifiednode/cli/Cargo.tomldiffbeforeafterboth
--- a/node/cli/Cargo.toml
+++ b/node/cli/Cargo.toml
@@ -3,7 +3,7 @@
 
 [build-dependencies.substrate-build-script-utils]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 ################################################################################
@@ -17,196 +17,196 @@
 
 [dependencies.frame-benchmarking]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-benchmarking-cli]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-transaction-payment-rpc]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.substrate-prometheus-endpoint]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-basic-authorship]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-chain-spec]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sc-cli]
 features = ['wasmtime']
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-client-api]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sc-consensus]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-consensus-aura]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-executor]
 features = ['wasmtime']
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-finality-grandpa]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-keystore]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sc-rpc]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sc-rpc-api]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-service]
 features = ['wasmtime']
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sc-telemetry]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sc-transaction-pool]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sc-tracing]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-block-builder]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-api]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-blockchain]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-consensus]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sp-consensus-aura]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sp-core]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-finality-grandpa]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-inherents]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-keystore]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sp-offchain]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-runtime]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-session]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-timestamp]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-transaction-pool]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-trie]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.substrate-frame-rpc-system]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-contracts]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-contracts-rpc]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 
 [dependencies.sc-network]
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.serde]
@@ -222,58 +222,58 @@
 
 [dependencies.cumulus-client-consensus-aura]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 
 [dependencies.cumulus-client-consensus-common]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 
 [dependencies.cumulus-client-collator]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 
 [dependencies.cumulus-client-cli]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 
 [dependencies.cumulus-client-network]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 
 [dependencies.cumulus-primitives-core]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 
 [dependencies.cumulus-primitives-parachain-inherent]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 
 [dependencies.cumulus-client-service]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 
 
 ################################################################################
 # Polkadot dependencies
 [dependencies.polkadot-primitives]
 git = "https://github.com/paritytech/polkadot"
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 
 [dependencies.polkadot-service]
 git = "https://github.com/paritytech/polkadot"
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 
 [dependencies.polkadot-cli]
 git = "https://github.com/paritytech/polkadot"
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 
 [dependencies.polkadot-test-service]
 git = "https://github.com/paritytech/polkadot"
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 
 [dependencies.polkadot-parachain]
 git = "https://github.com/paritytech/polkadot"
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 
 
 ################################################################################
@@ -322,7 +322,7 @@
 fc-rpc = { version = "2.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
 fc-db = { version = "1.0.0", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
 fp-rpc = { version = "2.0.0", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
-pallet-ethereum = { version = "2.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
+pallet-ethereum = { version = "3.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
 
 nft-rpc = { path = "../rpc" }
 
modifiednode/cli/build.rsdiffbeforeafterboth
--- a/node/cli/build.rs
+++ b/node/cli/build.rs
@@ -6,7 +6,7 @@
 use substrate_build_script_utils::{generate_cargo_keys, rerun_if_git_head_changed};
 
 fn main() {
-    generate_cargo_keys();
+	generate_cargo_keys();
 
-    rerun_if_git_head_changed();
+	rerun_if_git_head_changed();
 }
modifiednode/cli/src/chain_spec.rsdiffbeforeafterboth
--- a/node/cli/src/chain_spec.rs
+++ b/node/cli/src/chain_spec.rs
@@ -64,20 +64,22 @@
 		// ID
 		"dev",
 		ChainType::Local,
-		move || testnet_genesis(
-			// Sudo account
-			get_account_id_from_seed::<sr25519::Public>("Alice"),
-			vec![
-				get_from_seed::<AuraId>("Alice"),
-				get_from_seed::<AuraId>("Bob"),
-			],
-			// Pre-funded accounts
-			vec![
+		move || {
+			testnet_genesis(
+				// Sudo account
 				get_account_id_from_seed::<sr25519::Public>("Alice"),
-				get_account_id_from_seed::<sr25519::Public>("Bob"),
-			],
-			id,
-		),
+				vec![
+					get_from_seed::<AuraId>("Alice"),
+					get_from_seed::<AuraId>("Bob"),
+				],
+				// Pre-funded accounts
+				vec![
+					get_account_id_from_seed::<sr25519::Public>("Alice"),
+					get_account_id_from_seed::<sr25519::Public>("Bob"),
+				],
+				id,
+			)
+		},
 		// Bootnodes
 		vec![],
 		// Telemetry
@@ -101,30 +103,32 @@
 		// ID
 		"local_testnet",
 		ChainType::Local,
-		move || testnet_genesis(
-			// Sudo account
-			get_account_id_from_seed::<sr25519::Public>("Alice"),
-			vec![
-				get_from_seed::<AuraId>("Alice"),
-				get_from_seed::<AuraId>("Bob"),
-			],
-			// Pre-funded accounts
-			vec![
+		move || {
+			testnet_genesis(
+				// Sudo account
 				get_account_id_from_seed::<sr25519::Public>("Alice"),
-				get_account_id_from_seed::<sr25519::Public>("Bob"),
-				get_account_id_from_seed::<sr25519::Public>("Charlie"),
-				get_account_id_from_seed::<sr25519::Public>("Dave"),
-				get_account_id_from_seed::<sr25519::Public>("Eve"),
-				get_account_id_from_seed::<sr25519::Public>("Ferdie"),
-				get_account_id_from_seed::<sr25519::Public>("Alice//stash"),
-				get_account_id_from_seed::<sr25519::Public>("Bob//stash"),
-				get_account_id_from_seed::<sr25519::Public>("Charlie//stash"),
-				get_account_id_from_seed::<sr25519::Public>("Dave//stash"),
-				get_account_id_from_seed::<sr25519::Public>("Eve//stash"),
-				get_account_id_from_seed::<sr25519::Public>("Ferdie//stash"),
-			],
-			id,
-		),
+				vec![
+					get_from_seed::<AuraId>("Alice"),
+					get_from_seed::<AuraId>("Bob"),
+				],
+				// Pre-funded accounts
+				vec![
+					get_account_id_from_seed::<sr25519::Public>("Alice"),
+					get_account_id_from_seed::<sr25519::Public>("Bob"),
+					get_account_id_from_seed::<sr25519::Public>("Charlie"),
+					get_account_id_from_seed::<sr25519::Public>("Dave"),
+					get_account_id_from_seed::<sr25519::Public>("Eve"),
+					get_account_id_from_seed::<sr25519::Public>("Ferdie"),
+					get_account_id_from_seed::<sr25519::Public>("Alice//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Bob//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Charlie//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Dave//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Eve//stash"),
+					get_account_id_from_seed::<sr25519::Public>("Ferdie//stash"),
+				],
+				id,
+			)
+		},
 		// Bootnodes
 		vec![],
 		// Telemetry
@@ -142,83 +146,82 @@
 }
 
 fn testnet_genesis(
-    root_key: AccountId,
+	root_key: AccountId,
 	initial_authorities: Vec<AuraId>,
-    endowed_accounts: Vec<AccountId>,
+	endowed_accounts: Vec<AccountId>,
 	id: ParaId,
 ) -> GenesisConfig {
-
-	let vested_accounts = vec![
-		get_account_id_from_seed::<sr25519::Public>("Bob"),
-	];
+	let vested_accounts = vec![get_account_id_from_seed::<sr25519::Public>("Bob")];
 
-    GenesisConfig {
+	GenesisConfig {
 		system: nft_runtime::SystemConfig {
 			code: nft_runtime::WASM_BINARY
 				.expect("WASM binary was not build, please build it!")
 				.to_vec(),
 			changes_trie_config: Default::default(),
 		},
-        pallet_balances: BalancesConfig {
-            balances: endowed_accounts
-                .iter()
-                .cloned()
-                .map(|k| (k, 1 << 70))
-                .collect(),
-        },
-		pallet_treasury: Default::default(),
-		pallet_sudo: SudoConfig { key: root_key },
-		pallet_vesting: VestingConfig {
-            vesting: vested_accounts
-                .iter()
-                .cloned()
-                .map(|k| (k, 1000, 100, 1 << 98))
-                .collect(),
-        },
-        pallet_nft: NftConfig {
-            collection_id: vec![(
-                1,
-                Collection {
-                    owner: get_account_id_from_seed::<sr25519::Public>("Alice"),
-                    mode: CollectionMode::NFT,
-                    access: AccessMode::Normal,
-                    decimal_points: 0,
-                    name: vec![],
-                    description: vec![],
-                    token_prefix: vec![],
-                    mint_mode: false,
+		balances: BalancesConfig {
+			balances: endowed_accounts
+				.iter()
+				.cloned()
+				.map(|k| (k, 1 << 70))
+				.collect(),
+		},
+		treasury: Default::default(),
+		sudo: SudoConfig { key: root_key },
+		vesting: VestingConfig {
+			vesting: vested_accounts
+				.iter()
+				.cloned()
+				.map(|k| (k, 1000, 100, 1 << 98))
+				.collect(),
+		},
+		nft: NftConfig {
+			collection_id: vec![(
+				1,
+				Collection {
+					owner: get_account_id_from_seed::<sr25519::Public>("Alice"),
+					mode: CollectionMode::NFT,
+					access: AccessMode::Normal,
+					decimal_points: 0,
+					name: vec![],
+					description: vec![],
+					token_prefix: vec![],
+					mint_mode: false,
 					offchain_schema: vec![],
 					schema_version: SchemaVersion::default(),
-                    sponsorship: SponsorshipState::Confirmed(get_account_id_from_seed::<sr25519::Public>("Alice")),
-                    const_on_chain_schema: vec![],
+					sponsorship: SponsorshipState::Confirmed(get_account_id_from_seed::<
+						sr25519::Public,
+					>("Alice")),
+					const_on_chain_schema: vec![],
 					variable_on_chain_schema: vec![],
-					limits: CollectionLimits::default()
-                },
-            )],
-            nft_item_id: vec![],
-            fungible_item_id: vec![],
-            refungible_item_id: vec![],
-            chain_limit: ChainLimits {
-                collection_numbers_limit: 100000,
-                account_token_ownership_limit: 1000000,
-                collections_admins_limit: 5,
-                custom_data_limit: 2048,
-                nft_sponsor_transfer_timeout: 15,
-                fungible_sponsor_transfer_timeout: 15,
+					limits: CollectionLimits::default(),
+				},
+			)],
+			nft_item_id: vec![],
+			fungible_item_id: vec![],
+			refungible_item_id: vec![],
+			chain_limit: ChainLimits {
+				collection_numbers_limit: 100000,
+				account_token_ownership_limit: 1000000,
+				collections_admins_limit: 5,
+				custom_data_limit: 2048,
+				nft_sponsor_transfer_timeout: 15,
+				fungible_sponsor_transfer_timeout: 15,
 				refungible_sponsor_transfer_timeout: 15,
 				offchain_schema_limit: 1024,
 				variable_on_chain_schema_limit: 1024,
 				const_on_chain_schema_limit: 1024,
-            },
-        },
+			},
+		},
 		parachain_info: nft_runtime::ParachainInfoConfig { parachain_id: id },
-		pallet_aura: nft_runtime::AuraConfig {
+		aura: nft_runtime::AuraConfig {
 			authorities: initial_authorities,
 		},
-		cumulus_pallet_aura_ext: Default::default(),
-		pallet_evm: EVMConfig {
+		aura_ext: Default::default(),
+		evm: EVMConfig {
 			accounts: BTreeMap::new(),
 		},
-		pallet_ethereum: EthereumConfig {},
-    }
+		ethereum: EthereumConfig {},
+	}
 }
modifiednode/cli/src/cli.rsdiffbeforeafterboth
--- a/node/cli/src/cli.rs
+++ b/node/cli/src/cli.rs
@@ -1,6 +1,4 @@
 use crate::chain_spec;
-use cumulus_client_cli;
-use sc_cli;
 use std::path::PathBuf;
 use structopt::StructOpt;
 
modifiednode/cli/src/command.rsdiffbeforeafterboth
--- a/node/cli/src/command.rs
+++ b/node/cli/src/command.rs
@@ -18,7 +18,7 @@
 use crate::{
 	chain_spec,
 	cli::{Cli, RelayChainCli, Subcommand},
-	service::{new_partial, ParachainRuntimeExecutor}
+	service::{new_partial, ParachainRuntimeExecutor},
 };
 use codec::Encode;
 use cumulus_primitives_core::ParaId;
@@ -31,7 +31,7 @@
 	NetworkParams, Result, RuntimeVersion, SharedParams, SubstrateCli,
 };
 use sc_service::{
-	config::{BasePath, PrometheusConfig}
+	config::{BasePath, PrometheusConfig},
 };
 use sp_core::hexdisplay::HexDisplay;
 use sp_runtime::traits::Block as BlockT;
@@ -120,8 +120,7 @@
 	}
 
 	fn load_spec(&self, id: &str) -> std::result::Result<Box<dyn sc_service::ChainSpec>, String> {
-		polkadot_cli::Cli::from_iter([RelayChainCli::executable_name().to_string()].iter())
-			.load_spec(id)
+		polkadot_cli::Cli::from_iter([RelayChainCli::executable_name()].iter()).load_spec(id)
 	}
 
 	fn native_runtime_version(chain_spec: &Box<dyn ChainSpec>) -> &'static RuntimeVersion {
@@ -129,6 +128,7 @@
 	}
 }
 
+#[allow(clippy::borrowed_box)]
 fn extract_genesis_wasm(chain_spec: &Box<dyn sc_service::ChainSpec>) -> Result<Vec<u8>> {
 	let mut storage = chain_spec.build_storage()?;
 
@@ -189,7 +189,7 @@
 			runner.sync_run(|config| {
 				let polkadot_cli = RelayChainCli::new(
 					&config,
-					[RelayChainCli::executable_name().to_string()]
+					[RelayChainCli::executable_name()]
 						.iter()
 						.chain(cli.relaychain_args.iter()),
 				);
@@ -251,7 +251,7 @@
 			}
 
 			Ok(())
-		},
+		}
 		Some(Subcommand::Benchmark(cmd)) => {
 			if cfg!(feature = "runtime-benchmarks") {
 				let runner = cli.create_runner(cmd)?;
@@ -259,22 +259,20 @@
 				runner.sync_run(|config| cmd.run::<Block, ParachainRuntimeExecutor>(config))
 			} else {
 				Err("Benchmarking wasn't enabled when building the node. \
-				You can enable it with `--features runtime-benchmarks`.".into())
+				You can enable it with `--features runtime-benchmarks`."
+					.into())
 			}
-		},
+		}
 		None => {
 			let runner = cli.create_runner(&cli.run.normalize())?;
 
 			runner.run_node_until_exit(|config| async move {
-				// TODO
-				let key = sp_core::Pair::generate().0;
-
 				let para_id =
 					chain_spec::Extensions::try_get(&*config.chain_spec).map(|e| e.para_id);
 
 				let polkadot_cli = RelayChainCli::new(
 					&config,
-					[RelayChainCli::executable_name().to_string()]
+					[RelayChainCli::executable_name()]
 						.iter()
 						.chain(cli.relaychain_args.iter()),
 				);
@@ -289,12 +287,9 @@
 				let genesis_state = format!("0x{:?}", HexDisplay::from(&block.header().encode()));
 
 				let task_executor = config.task_executor.clone();
-				let polkadot_config = SubstrateCli::create_configuration(
-					&polkadot_cli,
-					&polkadot_cli,
-					task_executor,
-				)
-				.map_err(|err| format!("Relay chain argument error: {}", err))?;
+				let polkadot_config =
+					SubstrateCli::create_configuration(&polkadot_cli, &polkadot_cli, task_executor)
+						.map_err(|err| format!("Relay chain argument error: {}", err))?;
 
 				info!("Parachain id: {:?}", id);
 				info!("Parachain Account: {}", parachain_account);
@@ -308,7 +303,7 @@
 					}
 				);
 
-				crate::service::start_node(config, key, polkadot_config, id)
+				crate::service::start_node(config, polkadot_config, id)
 					.await
 					.map(|r| r.0)
 					.map_err(Into::into)
@@ -443,4 +438,4 @@
 	) -> Result<Option<sc_telemetry::TelemetryEndpoints>> {
 		self.base.base.telemetry_endpoints(chain_spec)
 	}
-}
\ No newline at end of file
+}
modifiednode/cli/src/service.rsdiffbeforeafterboth
--- a/node/cli/src/service.rs
+++ b/node/cli/src/service.rs
@@ -15,9 +15,7 @@
 use nft_runtime::RuntimeApi;
 
 // Cumulus Imports
-use cumulus_client_consensus_aura::{
-	build_aura_consensus, BuildAuraConsensusParams, SlotProportion,
-};
+use cumulus_client_consensus_aura::{build_aura_consensus, BuildAuraConsensusParams, SlotProportion};
 use cumulus_client_consensus_common::ParachainConsensus;
 use cumulus_client_network::build_block_announce_validator;
 use cumulus_client_service::{
@@ -25,9 +23,6 @@
 };
 use cumulus_primitives_core::ParaId;
 
-// Polkadot Imports
-use polkadot_primitives::v1::CollatorPair;
-
 // Substrate Imports
 use sc_client_api::ExecutorProvider;
 pub use sc_executor::NativeExecutor;
@@ -59,20 +54,23 @@
 );
 
 pub fn open_frontier_backend(config: &Configuration) -> Result<Arc<fc_db::Backend<Block>>, String> {
-	let config_dir = config.base_path.as_ref()
+	let config_dir = config
+		.base_path
+		.as_ref()
 		.map(|base_path| base_path.config_dir(config.chain_spec.id()))
 		.unwrap_or_else(|| {
-			BasePath::from_project("", "", "nft")
-				.config_dir(config.chain_spec.id())
+			BasePath::from_project("", "", "nft").config_dir(config.chain_spec.id())
 		});
 	let database_dir = config_dir.join("frontier").join("db");
 
-	Ok(Arc::new(fc_db::Backend::<Block>::new(&fc_db::DatabaseSettings {
-		source: fc_db::DatabaseSettingsSrc::RocksDb {
-			path: database_dir,
-			cache_size: 0,
-		}
-	})?))
+	Ok(Arc::new(fc_db::Backend::<Block>::new(
+		&fc_db::DatabaseSettings {
+			source: fc_db::DatabaseSettingsSrc::RocksDb {
+				path: database_dir,
+				cache_size: 0,
+			},
+		},
+	)?))
 }
 
 type Executor = ParachainRuntimeExecutor;
@@ -85,6 +83,7 @@
 ///
 /// Use this macro if you don't actually need the full service, but just the builder in order to
 /// be able to perform chain operations.
+#[allow(clippy::type_complexity)]
 pub fn new_partial<BIQ>(
 	config: &Configuration,
 	build_import_queue: BIQ,
@@ -95,7 +94,13 @@
 		FullSelectChain,
 		sp_consensus::DefaultImportQueue<Block, FullClient>,
 		sc_transaction_pool::FullPool<Block, FullClient>,
-		(Option<Telemetry>, PendingTransactions, Option<FilterPool>, Arc<fc_db::Backend<Block>>, Option<TelemetryWorkerHandle>),
+		(
+			Option<Telemetry>,
+			PendingTransactions,
+			Option<FilterPool>,
+			Arc<fc_db::Backend<Block>>,
+			Option<TelemetryWorkerHandle>,
+		),
 	>,
 	sc_service::Error,
 >
@@ -107,12 +112,9 @@
 		&Configuration,
 		Option<TelemetryHandle>,
 		&TaskManager,
-	) -> Result<
-		sp_consensus::DefaultImportQueue<Block, FullClient>,
-		sc_service::Error,
-	>,
+	) -> Result<sp_consensus::DefaultImportQueue<Block, FullClient>, sc_service::Error>,
 {
-	let telemetry = config
+	let _telemetry = config
 		.telemetry_endpoints
 		.clone()
 		.filter(|x| !x.is_empty())
@@ -123,7 +125,9 @@
 		})
 		.transpose()?;
 
-	let telemetry = config.telemetry_endpoints.clone()
+	let telemetry = config
+		.telemetry_endpoints
+		.clone()
 		.filter(|x| !x.is_empty())
 		.map(|endpoints| -> Result<_, sc_telemetry::Error> {
 			let worker = TelemetryWorker::new(16)?;
@@ -134,7 +138,7 @@
 
 	let (client, backend, keystore_container, task_manager) =
 		sc_service::new_full_parts::<Block, RuntimeApi, Executor>(
-			&config,
+			config,
 			telemetry.as_ref().map(|(_, telemetry)| telemetry.handle()),
 		)?;
 	let client = Arc::new(client);
@@ -152,14 +156,13 @@
 		config.transaction_pool.clone(),
 		config.role.is_authority().into(),
 		config.prometheus_registry(),
-		task_manager.spawn_handle(),
+		task_manager.spawn_essential_handle(),
 		client.clone(),
 	);
 
 	let pending_transactions: PendingTransactions = Some(Arc::new(Mutex::new(HashMap::new())));
 
-	let filter_pool: Option<FilterPool>
-		= Some(Arc::new(Mutex::new(BTreeMap::new())));
+	let filter_pool: Option<FilterPool> = Some(Arc::new(Mutex::new(BTreeMap::new())));
 
 	let frontier_backend = open_frontier_backend(config)?;
 
@@ -178,7 +181,13 @@
 		task_manager,
 		transaction_pool,
 		select_chain,
-		other: (telemetry, pending_transactions, filter_pool, frontier_backend, telemetry_worker_handle),
+		other: (
+			telemetry,
+			pending_transactions,
+			filter_pool,
+			frontier_backend,
+			telemetry_worker_handle,
+		),
 	};
 
 	Ok(params)
@@ -190,7 +199,6 @@
 #[sc_tracing::logging::prefix_logs_with("Parachain")]
 async fn start_node_impl<BIQ, BIC>(
 	parachain_config: Configuration,
-	collator_key: CollatorPair,
 	polkadot_config: Configuration,
 	id: ParaId,
 	build_import_queue: BIQ,
@@ -204,10 +212,7 @@
 		&Configuration,
 		Option<TelemetryHandle>,
 		&TaskManager,
-	) -> Result<
-		sp_consensus::DefaultImportQueue<Block, FullClient>,
-		sc_service::Error,
-	>,
+	) -> Result<sp_consensus::DefaultImportQueue<Block, FullClient>, sc_service::Error>,
 	BIC: FnOnce(
 		Arc<FullClient>,
 		Option<&Registry>,
@@ -227,18 +232,21 @@
 	let parachain_config = prepare_node_config(parachain_config);
 
 	let params = new_partial::<BIQ>(&parachain_config, build_import_queue)?;
-	let (mut telemetry, pending_transactions, filter_pool, frontier_backend, telemetry_worker_handle) = params.other;
-
-	let relay_chain_full_node = cumulus_client_service::build_polkadot_full_node(
-		polkadot_config,
-		collator_key.clone(),
+	let (
+		mut telemetry,
+		pending_transactions,
+		filter_pool,
+		frontier_backend,
 		telemetry_worker_handle,
-	)
-	.map_err(|e| match e {
-		polkadot_service::Error::Sub(x) => x,
-		s => format!("{}", s).into(),
-	})?;
+	) = params.other;
 
+	let relay_chain_full_node =
+		cumulus_client_service::build_polkadot_full_node(polkadot_config, telemetry_worker_handle)
+			.map_err(|e| match e {
+				polkadot_service::Error::Sub(x) => x,
+				s => format!("{}", s).into(),
+			})?;
+
 	let client = params.client.clone();
 	let backend = params.backend.clone();
 	let block_announce_validator = build_block_announce_validator(
@@ -254,7 +262,7 @@
 	let transaction_pool = params.transaction_pool.clone();
 	let mut task_manager = params.task_manager;
 	let import_queue = cumulus_client_service::SharedImportQueue::new(params.import_queue);
-	let (network, network_status_sinks, system_rpc_tx, start_network) =
+	let (network, system_rpc_tx, start_network) =
 		sc_service::build_network(sc_service::BuildNetworkParams {
 			config: &parachain_config,
 			client: client.clone(),
@@ -283,7 +291,7 @@
 			network: rpc_network.clone(),
 			pending_transactions: pending_transactions.clone(),
 			select_chain: select_chain.clone(),
-			is_authority: is_authority.clone(),
+			is_authority,
 			// TODO: Unhardcode
 			max_past_logs: 10000,
 		};
@@ -302,7 +310,6 @@
 		keystore: params.keystore_container.sync_keystore(),
 		backend: backend.clone(),
 		network: network.clone(),
-		network_status_sinks,
 		system_rpc_tx,
 		telemetry: telemetry.as_mut(),
 	})?;
@@ -333,7 +340,6 @@
 			announce_block,
 			client: client.clone(),
 			task_manager: &mut task_manager,
-			collator_key,
 			relay_chain_full_node,
 			spawner,
 			parachain_consensus,
@@ -364,15 +370,8 @@
 	config: &Configuration,
 	telemetry: Option<TelemetryHandle>,
 	task_manager: &TaskManager,
-) -> Result<
-	sp_consensus::DefaultImportQueue<
-		Block,
-		FullClient,
-	>,
-	sc_service::Error,
-> {
+) -> Result<sp_consensus::DefaultImportQueue<Block, FullClient>, sc_service::Error> {
 	let slot_duration = cumulus_client_consensus_aura::slot_duration(&*client)?;
-
 
 	cumulus_client_consensus_aura::import_queue::<
 		sp_consensus_aura::sr25519::AuthorityPair,
@@ -383,7 +382,7 @@
 		_,
 		_,
 	>(cumulus_client_consensus_aura::ImportQueueParams {
-		block_import:  client.clone(),
+		block_import: client.clone(),
 		client: client.clone(),
 		create_inherent_data_providers: move |_, _| async move {
 			let time = sp_timestamp::InherentDataProvider::from_system_time();
@@ -396,7 +395,7 @@
 
 			Ok((time, slot))
 		},
-		registry: config.prometheus_registry().clone(),
+		registry: config.prometheus_registry(),
 		can_author_with: sp_consensus::CanAuthorWithNativeVersion::new(client.executor().clone()),
 		spawner: &task_manager.spawn_essential_handle(),
 		telemetry,
@@ -407,13 +406,11 @@
 /// Start a normal parachain node.
 pub async fn start_node(
 	parachain_config: Configuration,
-	collator_key: CollatorPair,
 	polkadot_config: Configuration,
 	id: ParaId,
 ) -> sc_service::error::Result<(TaskManager, Arc<FullClient>)> {
 	start_node_impl::<_, _>(
 		parachain_config,
-		collator_key,
 		polkadot_config,
 		id,
 		parachain_build_import_queue,
@@ -432,7 +429,7 @@
 				task_manager.spawn_handle(),
 				client.clone(),
 				transaction_pool,
-				prometheus_registry.clone(),
+				prometheus_registry,
 				telemetry.clone(),
 			);
 
@@ -480,7 +477,7 @@
 				block_import: client.clone(),
 				relay_chain_client: relay_chain_node.client.clone(),
 				relay_chain_backend: relay_chain_node.backend.clone(),
-				para_client: client.clone(),
+				para_client: client,
 				backoff_authoring_blocks: Option::<()>::None,
 				sync_oracle,
 				keystore,
@@ -493,4 +490,4 @@
 		},
 	)
 	.await
-}
\ No newline at end of file
+}
modifiednode/rpc/Cargo.tomldiffbeforeafterboth
--- a/node/rpc/Cargo.toml
+++ b/node/rpc/Cargo.toml
@@ -13,33 +13,33 @@
 futures = { version = "0.3.1", features = ["compat"] }
 jsonrpc-core = "15.0.0"
 jsonrpc-pubsub = "15.0.0"
-pallet-contracts-rpc = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-pallet-transaction-payment-rpc = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-pallet-transaction-payment-rpc-runtime-api = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-client-api = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-consensus-aura = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-consensus-epochs = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-finality-grandpa = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-finality-grandpa-rpc = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-keystore = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-network = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-rpc-api = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-rpc = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-service = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-api = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-block-builder = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-blockchain = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-consensus = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-consensus-aura = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-core = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-offchain = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-runtime = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-storage = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-session = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-transaction-pool = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-transaction-pool = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sc-transaction-graph = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-substrate-frame-rpc-system = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
+pallet-contracts-rpc = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+pallet-transaction-payment-rpc = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+pallet-transaction-payment-rpc-runtime-api = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-client-api = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-consensus-aura = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-consensus-epochs = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-finality-grandpa = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-finality-grandpa-rpc = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-keystore = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-network = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-rpc-api = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-rpc = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-service = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-api = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-block-builder = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-blockchain = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-consensus = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-consensus-aura = { version = "0.9", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-core = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-offchain = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-runtime = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-storage = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-session = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-transaction-pool = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-transaction-pool = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sc-transaction-graph = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+substrate-frame-rpc-system = { version = "3.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
 tokio = { version = "0.2.13", features = ["macros", "sync"] }
 
 pallet-ethereum = { git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
modifiednode/rpc/src/lib.rsdiffbeforeafterboth
--- a/node/rpc/src/lib.rs
+++ b/node/rpc/src/lib.rs
@@ -189,7 +189,7 @@
 		pool.clone(),
 		nft_runtime::TransactionConverter,
 		network.clone(),
-		pending_transactions.clone(),
+		pending_transactions,
 		signers,
 		overrides.clone(),
 		backend,
@@ -200,8 +200,8 @@
 	if let Some(filter_pool) = filter_pool {
 		io.extend_with(EthFilterApiServer::to_delegate(EthFilterApi::new(
 			client.clone(),
-			filter_pool.clone(),
-			500 as usize, // max stored filters
+			filter_pool,
+			500_usize, // max stored filters
 			overrides.clone(),
 			max_past_logs,
 		)));
@@ -217,9 +217,9 @@
 	io.extend_with(Web3ApiServer::to_delegate(Web3Api::new(client.clone())));
 
 	io.extend_with(EthPubSubApiServer::to_delegate(EthPubSubApi::new(
-		pool.clone(),
-		client.clone(),
-		network.clone(),
+		pool,
+		client,
+		network,
 		SubscriptionManager::<HexEncodedIdProvider>::with_id_provider(
 			HexEncodedIdProvider::default(),
 			Arc::new(subscription_task_executor),
modifiedpallets/contract-helpers/Cargo.tomldiffbeforeafterboth
--- a/pallets/contract-helpers/Cargo.toml
+++ b/pallets/contract-helpers/Cargo.toml
@@ -15,11 +15,11 @@
 version = '0.1.0'
 
 [dependencies]
-frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-pallet-contracts = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-runtime = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-std = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
+frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+pallet-contracts = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-runtime = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-std = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
 
 [features]
 default = ["std"]
modifiedpallets/contract-helpers/src/lib.rsdiffbeforeafterboth
--- a/pallets/contract-helpers/src/lib.rs
+++ b/pallets/contract-helpers/src/lib.rs
@@ -15,11 +15,11 @@
 	use sp_std::vec::Vec;
 	use up_sponsorship::SponsorshipHandler;
 
-    #[pallet::error]
-    pub enum Error<T> {
-        /// Should be contract owner
-        NoPermission,
-    }
+	#[pallet::error]
+	pub enum Error<T> {
+		/// Should be contract owner
+		NoPermission,
+	}
 
 	#[pallet::config]
 	pub trait Config: frame_system::Config + pallet_contracts::Config {}
@@ -75,13 +75,16 @@
 	#[pallet::call]
 	impl<T: Config> Pallet<T> {
 		#[pallet::weight(0)]
-		fn toggle_sponsoring(
+		pub fn toggle_sponsoring(
 			origin: OriginFor<T>,
 			contract: T::AccountId,
 			sponsoring: bool,
 		) -> DispatchResult {
 			let sender = ensure_signed(origin)?;
-			ensure!(<Owner<T>>::get(&contract) == sender, <Error<T>>::NoPermission);
+			ensure!(
+				<Owner<T>>::get(&contract) == sender,
+				<Error<T>>::NoPermission
+			);
 
 			if sponsoring {
 				<SelfSponsoring<T>>::insert(contract, true);
@@ -92,13 +95,16 @@
 		}
 
 		#[pallet::weight(0)]
-		fn toggle_allowlist(
+		pub fn toggle_allowlist(
 			origin: OriginFor<T>,
 			contract: T::AccountId,
 			enabled: bool,
 		) -> DispatchResult {
 			let sender = ensure_signed(origin)?;
-			ensure!(<Owner<T>>::get(&contract) == sender, <Error<T>>::NoPermission);
+			ensure!(
+				<Owner<T>>::get(&contract) == sender,
+				<Error<T>>::NoPermission
+			);
 
 			if enabled {
 				<AllowlistEnabled<T>>::insert(contract, true);
@@ -109,14 +115,17 @@
 		}
 
 		#[pallet::weight(0)]
-		fn toggle_allowed(
+		pub fn toggle_allowed(
 			origin: OriginFor<T>,
 			contract: T::AccountId,
 			user: T::AccountId,
 			allowed: bool,
 		) -> DispatchResult {
 			let sender = ensure_signed(origin)?;
-			ensure!(<Owner<T>>::get(&contract) == sender, <Error<T>>::NoPermission);
+			ensure!(
+				<Owner<T>>::get(&contract) == sender,
+				<Error<T>>::NoPermission
+			);
 
 			if allowed {
 				<Allowlist<T>>::insert(contract, user, true);
@@ -127,13 +136,16 @@
 		}
 
 		#[pallet::weight(0)]
-		fn set_sponsoring_rate_limit(
+		pub fn set_sponsoring_rate_limit(
 			origin: OriginFor<T>,
 			contract: T::AccountId,
 			rate_limit: T::BlockNumber,
 		) -> DispatchResult {
 			let sender = ensure_signed(origin)?;
-			ensure!(<Owner<T>>::get(&contract) == sender, <Error<T>>::NoPermission);
+			ensure!(
+				<Owner<T>>::get(&contract) == sender,
+				<Error<T>>::NoPermission
+			);
 
 			<SponsoringRateLimit<T>>::insert(contract, rate_limit);
 			Ok(())
@@ -174,19 +186,17 @@
 			_info: &DispatchInfoOf<Self::Call>,
 			_len: usize,
 		) -> transaction_validity::TransactionValidity {
-			match IsSubType::<pallet_contracts::Call<T>>::is_sub_type(call) {
-				Some(pallet_contracts::Call::call(dest, _value, _gas_limit, _data)) => {
-					let called_contract: T::AccountId =
-						T::Lookup::lookup((*dest).clone()).unwrap_or(T::AccountId::default());
-					if <AllowlistEnabled<T>>::get(&called_contract) {
-						if !<Allowlist<T>>::get(&called_contract, who)
-							&& &<Owner<T>>::get(&called_contract) != who
-						{
-							return Err(transaction_validity::InvalidTransaction::Call.into());
-						}
-					}
+			if let Some(pallet_contracts::Call::call(dest, _value, _gas_limit, _data)) =
+				IsSubType::<pallet_contracts::Call<T>>::is_sub_type(call)
+			{
+				let called_contract: T::AccountId =
+					T::Lookup::lookup((*dest).clone()).unwrap_or_default();
+				if <AllowlistEnabled<T>>::get(&called_contract)
+					&& !<Allowlist<T>>::get(&called_contract, who)
+					&& &<Owner<T>>::get(&called_contract) != who
+				{
+					return Err(transaction_validity::InvalidTransaction::Call.into());
 				}
-				_ => {}
 			}
 			Ok(transaction_validity::ValidTransaction::default())
 		}
@@ -200,11 +210,11 @@
 		) -> Result<Self::Pre, TransactionValidityError> {
 			match IsSubType::<pallet_contracts::Call<T>>::is_sub_type(call) {
 				Some(pallet_contracts::Call::instantiate(_, _, code_hash, _, salt)) => {
-					Ok(Some((who.clone(), code_hash.clone(), salt.clone())))
+					Ok(Some((who.clone(), *code_hash, salt.clone())))
 				}
 				Some(pallet_contracts::Call::instantiate_with_code(_, _, code, _, salt)) => {
-					let code_hash = &T::Hashing::hash(&code);
-					Ok(Some((who.clone(), code_hash.clone(), salt.clone())))
+					let code_hash = &T::Hashing::hash(code);
+					Ok(Some((who.clone(), *code_hash, salt.clone())))
 				}
 				_ => Ok(None),
 			}
@@ -236,24 +246,22 @@
 		T::AccountId: AsRef<[u8]>,
 	{
 		fn get_sponsor(who: &T::AccountId, call: &C) -> Option<T::AccountId> {
-			match IsSubType::<pallet_contracts::Call<T>>::is_sub_type(call) {
-				Some(pallet_contracts::Call::call(dest, _value, _gas_limit, _data)) => {
-					let called_contract: T::AccountId =
-						T::Lookup::lookup((*dest).clone()).unwrap_or_default();
-					if <SelfSponsoring<T>>::get(&called_contract) {
-						let last_tx_block = SponsorBasket::<T>::get(&called_contract, &who);
-						let block_number =
-							<frame_system::Pallet<T>>::block_number() as T::BlockNumber;
-						let rate_limit = SponsoringRateLimit::<T>::get(&called_contract);
-						let limit_time = last_tx_block + rate_limit;
+			if let Some(pallet_contracts::Call::call(dest, _value, _gas_limit, _data)) =
+				IsSubType::<pallet_contracts::Call<T>>::is_sub_type(call)
+			{
+				let called_contract: T::AccountId =
+					T::Lookup::lookup((*dest).clone()).unwrap_or_default();
+				if <SelfSponsoring<T>>::get(&called_contract) {
+					let last_tx_block = SponsorBasket::<T>::get(&called_contract, &who);
+					let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;
+					let rate_limit = SponsoringRateLimit::<T>::get(&called_contract);
+					let limit_time = last_tx_block + rate_limit;
 
-						if block_number >= limit_time {
-							SponsorBasket::<T>::insert(&called_contract, who, block_number);
-							return Some(called_contract);
-						}
+					if block_number >= limit_time {
+						SponsorBasket::<T>::insert(&called_contract, who, block_number);
+						return Some(called_contract);
 					}
 				}
-				_ => {}
 			}
 			None
 		}
modifiedpallets/inflation/Cargo.tomldiffbeforeafterboth
--- a/pallets/inflation/Cargo.toml
+++ b/pallets/inflation/Cargo.toml
@@ -43,43 +43,43 @@
 default-features = false
 optional = true
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-support]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-system]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-balances]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-timestamp]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-randomness-collective-flip]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-std]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.serde]
@@ -90,18 +90,18 @@
 [dependencies.sp-runtime]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-core]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-io]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
modifiedpallets/inflation/src/benchmarking.rsdiffbeforeafterboth
--- a/pallets/inflation/src/benchmarking.rs
+++ b/pallets/inflation/src/benchmarking.rs
@@ -5,15 +5,15 @@
 
 use sp_std::prelude::*;
 use frame_system::RawOrigin;
-use frame_benchmarking::{benchmarks}; 
+use frame_benchmarking::{benchmarks};
 use frame_support::traits::OnInitialize;
 
 benchmarks! {
 
 	on_initialize {
-        let block1: T::BlockNumber = T::BlockNumber::from(1u32);
-        let block2: T::BlockNumber = T::BlockNumber::from(2u32);
-        Inflation::<T>::on_initialize(block1); // Create Treasury account
+		let block1: T::BlockNumber = T::BlockNumber::from(1u32);
+		let block2: T::BlockNumber = T::BlockNumber::from(2u32);
+		Inflation::<T>::on_initialize(block1); // Create Treasury account
 	}: { Inflation::<T>::on_initialize(block2); } // Benchmark deposit_into_existing path
 
 }
modifiedpallets/inflation/src/lib.rsdiffbeforeafterboth
--- a/pallets/inflation/src/lib.rs
+++ b/pallets/inflation/src/lib.rs
@@ -4,7 +4,6 @@
 //
 
 #![recursion_limit = "1024"]
-
 #![cfg_attr(not(feature = "std"), no_std)]
 
 #[cfg(feature = "std")]
@@ -19,8 +18,7 @@
 mod tests;
 
 pub use frame_support::{
-	construct_runtime, decl_module, decl_storage,
-	ensure,
+	construct_runtime, decl_module, decl_storage, ensure,
 	traits::{
 		Currency, ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced,
 		Randomness, IsSubType, WithdrawReasons,
@@ -30,8 +28,7 @@
 		DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,
 		WeightToFeePolynomial, DispatchClass,
 	},
-	StorageValue,
-	transactional,
+	StorageValue, transactional,
 };
 
 // #[cfg(feature = "runtime-benchmarks")]
@@ -39,7 +36,7 @@
 
 use sp_runtime::{
 	Perbill,
-	traits::{Zero}
+	traits::{Zero},
 };
 use sp_std::convert::TryInto;
 
@@ -71,13 +68,13 @@
 }
 
 decl_module! {
-	pub struct Module<T: Config> for enum Call 
-	where 
+	pub struct Module<T: Config> for enum Call
+	where
 		origin: T::Origin,
 	{
 		const InflationBlockInterval: T::BlockNumber = T::InflationBlockInterval::get();
 
-		fn on_initialize(now: T::BlockNumber) -> Weight 
+		fn on_initialize(now: T::BlockNumber) -> Weight
 		{
 			let mut consumed_weight = 0;
 			let mut add_weight = |reads, writes, weight| {
@@ -95,14 +92,14 @@
 
 				if current_year <= TOTAL_YEARS_UNTIL_FLAT {
 					let amount: BalanceOf<T> = Perbill::from_rational(
-						block_interval * (START_INFLATION_PERCENT * TOTAL_YEARS_UNTIL_FLAT - current_year * (START_INFLATION_PERCENT - END_INFLATION_PERCENT)), 
+						block_interval * (START_INFLATION_PERCENT * TOTAL_YEARS_UNTIL_FLAT - current_year * (START_INFLATION_PERCENT - END_INFLATION_PERCENT)),
 						YEAR * TOTAL_YEARS_UNTIL_FLAT
 					) * ( one_percent * T::Currency::total_issuance() );
 					<BlockInflation<T>>::put(amount);
 				}
 				else {
 					let amount: BalanceOf<T> = Perbill::from_rational(
-						block_interval * END_INFLATION_PERCENT, 
+						block_interval * END_INFLATION_PERCENT,
 						YEAR
 					) * (one_percent * T::Currency::total_issuance());
 					<BlockInflation<T>>::put(amount);
modifiedpallets/inflation/src/tests.rsdiffbeforeafterboth
--- a/pallets/inflation/src/tests.rs
+++ b/pallets/inflation/src/tests.rs
@@ -1,241 +1,242 @@
-#[cfg(test)]
-mod tests {
-	use crate as pallet_inflation;
+#![cfg(test)]
+#![allow(clippy::from_over_into)]
+use crate as pallet_inflation;
 
-	use frame_system;
-	use frame_support::{traits::{Currency}, parameter_types};
-	use frame_support::{traits::OnInitialize};
-	use sp_core::H256;
-	use sp_runtime::{traits::{BlakeTwo256, IdentityLookup}, testing::Header};
+use frame_support::{
+	traits::{Currency},
+	parameter_types,
+};
+use frame_support::{traits::OnInitialize};
+use sp_core::H256;
+use sp_runtime::{
+	traits::{BlakeTwo256, IdentityLookup},
+	testing::Header,
+};
 
-	type UncheckedExtrinsic = frame_system::mocking::MockUncheckedExtrinsic<Test>;
-	type Block = frame_system::mocking::MockBlock<Test>;
+type UncheckedExtrinsic = frame_system::mocking::MockUncheckedExtrinsic<Test>;
+type Block = frame_system::mocking::MockBlock<Test>;
 
-	const YEAR: u64 = 5_259_600;
+const YEAR: u64 = 5_259_600;
 
-	parameter_types! {
-		pub const ExistentialDeposit: u64 = 1;
-		pub const MaxLocks: u32 = 50;
-	}
-	
-	impl pallet_balances::Config for Test {
-		type AccountStore = System;
-		type Balance = u64;
-		type DustRemoval = ();
-		type Event = ();
-		type ExistentialDeposit = ExistentialDeposit;
-		type WeightInfo = ();
-		type MaxLocks = MaxLocks;
-	}
-	
-	frame_support::construct_runtime!(
-		pub enum Test where
-			Block = Block,
-			NodeBlock = Block,
-			UncheckedExtrinsic = UncheckedExtrinsic,
-		{
-			Balances: pallet_balances::{Module, Call, Storage},
-			System: frame_system::{Module, Call, Config, Storage, Event<T>},
-			Inflation: pallet_inflation::{Module, Call, Storage},
-		}
-	);
+parameter_types! {
+	pub const ExistentialDeposit: u64 = 1;
+	pub const MaxLocks: u32 = 50;
+}
 
-	parameter_types! {
-		pub const BlockHashCount: u64 = 250;
-		pub BlockWeights: frame_system::limits::BlockWeights =
-			frame_system::limits::BlockWeights::simple_max(1024);
-		pub const SS58Prefix: u8 = 42;
-	}
+impl pallet_balances::Config for Test {
+	type AccountStore = System;
+	type Balance = u64;
+	type DustRemoval = ();
+	type Event = ();
+	type ExistentialDeposit = ExistentialDeposit;
+	type WeightInfo = ();
+	type MaxLocks = MaxLocks;
+}
 
-	impl frame_system::Config for Test {
-		type BaseCallFilter = ();
-		type BlockWeights = ();
-		type BlockLength = ();
-		type DbWeight = ();
-		type Origin = Origin;
-		type Call = Call;
-		type Index = u64;
-		type BlockNumber = u64;
-		type Hash = H256;
-		type Hashing = BlakeTwo256;
-		type AccountId = u64;
-		type Lookup = IdentityLookup<Self::AccountId>;
-		type Header = Header;
-		type Event = ();
-		type BlockHashCount = BlockHashCount;
-		type Version = ();
-		type PalletInfo = PalletInfo;
-		type AccountData = pallet_balances::AccountData<u64>;
-		type OnNewAccount = ();
-		type OnKilledAccount = ();
-		type SystemWeightInfo = ();
-		type SS58Prefix = SS58Prefix;
+frame_support::construct_runtime!(
+	pub enum Test where
+		Block = Block,
+		NodeBlock = Block,
+		UncheckedExtrinsic = UncheckedExtrinsic,
+	{
+		Balances: pallet_balances::{Pallet, Call, Storage},
+		System: frame_system::{Pallet, Call, Config, Storage, Event<T>},
+		Inflation: pallet_inflation::{Pallet, Call, Storage},
 	}
+);
 
-	parameter_types! {
-		pub TreasuryAccountId: u64 = 1234;
-		pub const InflationBlockInterval: u32 = 100; // every time per how many blocks inflation is applied
-	}
-		
-	impl pallet_inflation::Config for Test {
-		type Currency = Balances;
-		type TreasuryAccountId = TreasuryAccountId;
-		type InflationBlockInterval = InflationBlockInterval;
-	}
+parameter_types! {
+	pub const BlockHashCount: u64 = 250;
+	pub BlockWeights: frame_system::limits::BlockWeights =
+		frame_system::limits::BlockWeights::simple_max(1024);
+	pub const SS58Prefix: u8 = 42;
+}
 
-	// Build genesis storage according to the mock runtime.
-	pub fn new_test_ext() -> sp_io::TestExternalities {
-		frame_system::GenesisConfig::default().build_storage::<Test>().unwrap().into()
-	}
+impl frame_system::Config for Test {
+	type BaseCallFilter = ();
+	type BlockWeights = ();
+	type BlockLength = ();
+	type DbWeight = ();
+	type Origin = Origin;
+	type Call = Call;
+	type Index = u64;
+	type BlockNumber = u64;
+	type Hash = H256;
+	type Hashing = BlakeTwo256;
+	type AccountId = u64;
+	type Lookup = IdentityLookup<Self::AccountId>;
+	type Header = Header;
+	type Event = ();
+	type BlockHashCount = BlockHashCount;
+	type Version = ();
+	type PalletInfo = PalletInfo;
+	type AccountData = pallet_balances::AccountData<u64>;
+	type OnNewAccount = ();
+	type OnKilledAccount = ();
+	type SystemWeightInfo = ();
+	type SS58Prefix = SS58Prefix;
+	type OnSetCode = ();
+}
 
-	#[test]
-	fn inflation_works() {
-		new_test_ext().execute_with(|| {
-			// Total issuance = 1_000_000_000
-			let initial_issuance: u64 = 1_000_000_000;
-			let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
-			assert_eq!(Balances::free_balance(1234), initial_issuance);
+parameter_types! {
+	pub TreasuryAccountId: u64 = 1234;
+	pub const InflationBlockInterval: u32 = 100; // every time per how many blocks inflation is applied
+}
 
-			// BlockInflation should be set after 1st block and 
-			// first inflation deposit should be equal to BlockInflation
-			Inflation::on_initialize(1);
-			assert!(Inflation::block_inflation() > 0);
-			assert_eq!(Balances::free_balance(1234) - initial_issuance, Inflation::block_inflation());
-		});
-	}
+impl pallet_inflation::Config for Test {
+	type Currency = Balances;
+	type TreasuryAccountId = TreasuryAccountId;
+	type InflationBlockInterval = InflationBlockInterval;
+}
 
-	#[test]
-	fn inflation_second_deposit() {
-		new_test_ext().execute_with(|| {
-			// Total issuance = 1_000_000_000
-			let initial_issuance: u64 = 1_000_000_000;
-			let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
-			assert_eq!(Balances::free_balance(1234), initial_issuance);
-			Inflation::on_initialize(1);
+// Build genesis storage according to the mock runtime.
+pub fn new_test_ext() -> sp_io::TestExternalities {
+	frame_system::GenesisConfig::default()
+		.build_storage::<Test>()
+		.unwrap()
+		.into()
+}
 
-			// Next inflation deposit happens when block is multiple of InflationBlockInterval
-			let mut block: u32 = 2;
-			let balance_before: u64 = Balances::free_balance(1234);
-			while block % InflationBlockInterval::get() != 0 {
-				Inflation::on_initialize(block as u64);
-				block += 1;
-			}
-			let balance_just_before: u64 = Balances::free_balance(1234);
-			assert_eq!(balance_before, balance_just_before);
+#[test]
+fn inflation_works() {
+	new_test_ext().execute_with(|| {
+		// Total issuance = 1_000_000_000
+		let initial_issuance: u64 = 1_000_000_000;
+		let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
+		assert_eq!(Balances::free_balance(1234), initial_issuance);
 
-			// The block with inflation
+		// BlockInflation should be set after 1st block and
+		// first inflation deposit should be equal to BlockInflation
+		Inflation::on_initialize(1);
+		assert!(Inflation::block_inflation() > 0);
+		assert_eq!(
+			Balances::free_balance(1234) - initial_issuance,
+			Inflation::block_inflation()
+		);
+	});
+}
+
+#[test]
+fn inflation_second_deposit() {
+	new_test_ext().execute_with(|| {
+		// Total issuance = 1_000_000_000
+		let initial_issuance: u64 = 1_000_000_000;
+		let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
+		assert_eq!(Balances::free_balance(1234), initial_issuance);
+		Inflation::on_initialize(1);
+
+		// Next inflation deposit happens when block is multiple of InflationBlockInterval
+		let mut block: u32 = 2;
+		let balance_before: u64 = Balances::free_balance(1234);
+		while block % InflationBlockInterval::get() != 0 {
 			Inflation::on_initialize(block as u64);
-			let balance_after: u64 = Balances::free_balance(1234);
-			assert_eq!(balance_after - balance_just_before, Inflation::block_inflation());
-		});
-	}
+			block += 1;
+		}
+		let balance_just_before: u64 = Balances::free_balance(1234);
+		assert_eq!(balance_before, balance_just_before);
 
-	#[test]
-	fn inflation_in_1_year() {
-		new_test_ext().execute_with(|| {
-			// Total issuance = 1_000_000_000
-			let initial_issuance: u64 = 1_000_000_000;
-			let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
-			assert_eq!(Balances::free_balance(1234), initial_issuance);
-			Inflation::on_initialize(1);
-			let block_inflation_year_0 = Inflation::block_inflation();
+		// The block with inflation
+		Inflation::on_initialize(block as u64);
+		let balance_after: u64 = Balances::free_balance(1234);
+		assert_eq!(
+			balance_after - balance_just_before,
+			Inflation::block_inflation()
+		);
+	});
+}
 
-			Inflation::on_initialize(YEAR);
-			let block_inflation_year_1 = Inflation::block_inflation();
+#[test]
+fn inflation_in_1_year() {
+	new_test_ext().execute_with(|| {
+		// Total issuance = 1_000_000_000
+		let initial_issuance: u64 = 1_000_000_000;
+		let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
+		assert_eq!(Balances::free_balance(1234), initial_issuance);
+		Inflation::on_initialize(1);
+		let block_inflation_year_0 = Inflation::block_inflation();
 
-			// Assert that year 1 inflation is less than year 0
-			assert!(block_inflation_year_0 > block_inflation_year_1);
-		});
-	}
+		Inflation::on_initialize(YEAR);
+		let block_inflation_year_1 = Inflation::block_inflation();
 
-	#[test]
-	fn inflation_in_1_to_9_years() {
-		new_test_ext().execute_with(|| {
-			// Total issuance = 1_000_000_000
-			let initial_issuance: u64 = 1_000_000_000;
-			let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
-			assert_eq!(Balances::free_balance(1234), initial_issuance);
-			Inflation::on_initialize(1);
+		// Assert that year 1 inflation is less than year 0
+		assert!(block_inflation_year_0 > block_inflation_year_1);
+	});
+}
 
-			for year in 1..=9 {
-				let block_inflation_year_before = Inflation::block_inflation();
-				Inflation::on_initialize(YEAR * year);
-				let block_inflation_year_after = Inflation::block_inflation();
+#[test]
+fn inflation_in_1_to_9_years() {
+	new_test_ext().execute_with(|| {
+		// Total issuance = 1_000_000_000
+		let initial_issuance: u64 = 1_000_000_000;
+		let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
+		assert_eq!(Balances::free_balance(1234), initial_issuance);
+		Inflation::on_initialize(1);
 
-				// Assert that next year inflation is less than previous year inflation
-				assert!(block_inflation_year_before > block_inflation_year_after);
-			}
+		for year in 1..=9 {
+			let block_inflation_year_before = Inflation::block_inflation();
+			Inflation::on_initialize(YEAR * year);
+			let block_inflation_year_after = Inflation::block_inflation();
 
-		});
-	}
+			// Assert that next year inflation is less than previous year inflation
+			assert!(block_inflation_year_before > block_inflation_year_after);
+		}
+	});
+}
 
-	#[test]
-	fn inflation_after_year_10_is_flat() {
-		new_test_ext().execute_with(|| {
-			// Total issuance = 1_000_000_000
-			let initial_issuance: u64 = 1_000_000_000;
-			let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
-			assert_eq!(Balances::free_balance(1234), initial_issuance);
-			Inflation::on_initialize(YEAR * 9);
+#[test]
+fn inflation_after_year_10_is_flat() {
+	new_test_ext().execute_with(|| {
+		// Total issuance = 1_000_000_000
+		let initial_issuance: u64 = 1_000_000_000;
+		let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
+		assert_eq!(Balances::free_balance(1234), initial_issuance);
+		Inflation::on_initialize(YEAR * 9);
 
-			for year in 10..=20 {
-				let block_inflation_year_before = Inflation::block_inflation();
-				Inflation::on_initialize(YEAR * year);
-				let block_inflation_year_after = Inflation::block_inflation();
+		for year in 10..=20 {
+			let block_inflation_year_before = Inflation::block_inflation();
+			Inflation::on_initialize(YEAR * year);
+			let block_inflation_year_after = Inflation::block_inflation();
 
-				// Assert that next year inflation is equal to previous year inflation
-				assert_eq!(block_inflation_year_before, block_inflation_year_after);
-			}
-		});
-	}
+			// Assert that next year inflation is equal to previous year inflation
+			assert_eq!(block_inflation_year_before, block_inflation_year_after);
+		}
+	});
+}
 
-	#[test]
-	fn inflation_rate_by_year() {
-		new_test_ext().execute_with(|| {
-			let payouts: u64 = YEAR / InflationBlockInterval::get() as u64;
+#[test]
+fn inflation_rate_by_year() {
+	new_test_ext().execute_with(|| {
+		let payouts: u64 = YEAR / InflationBlockInterval::get() as u64;
 
-			// Inflation starts at 10% and does down by 2/3% every year until year 9 (included), 
-			// then it is flat.
-			let payout_by_year: [u64; 11] = [
-				1000,
-				933,
-				867,
-				800,
-				733,
-				667,
-				600,
-				533,
-				467,
-				400,
-				400
-			];
+		// Inflation starts at 10% and does down by 2/3% every year until year 9 (included),
+		// then it is flat.
+		let payout_by_year: [u64; 11] = [1000, 933, 867, 800, 733, 667, 600, 533, 467, 400, 400];
 
-			// For accuracy total issuance = payout0 * payouts * 10;
-			let initial_issuance: u64 = payout_by_year[0] * payouts * 10;
-			let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
-			assert_eq!(Balances::free_balance(1234), initial_issuance);
+		// For accuracy total issuance = payout0 * payouts * 10;
+		let initial_issuance: u64 = payout_by_year[0] * payouts * 10;
+		let _ = <Balances as Currency<_>>::deposit_creating(&1234, initial_issuance);
+		assert_eq!(Balances::free_balance(1234), initial_issuance);
 
-			for year in 0..=10 {
-				// Year first block
-				Inflation::on_initialize(year*YEAR);
-				let mut actual_payout = Inflation::block_inflation();
-				assert_eq!(actual_payout, payout_by_year[year as usize]);
+		for year in 0..=10 {
+			// Year first block
+			Inflation::on_initialize(year * YEAR);
+			let mut actual_payout = Inflation::block_inflation();
+			assert_eq!(actual_payout, payout_by_year[year as usize]);
 
-				// Year second block
-				Inflation::on_initialize(year*YEAR+1);
-				actual_payout = Inflation::block_inflation();
-				assert_eq!(actual_payout, payout_by_year[year as usize]);
+			// Year second block
+			Inflation::on_initialize(year * YEAR + 1);
+			actual_payout = Inflation::block_inflation();
+			assert_eq!(actual_payout, payout_by_year[year as usize]);
 
-				// Year middle block
-				Inflation::on_initialize(year*YEAR + YEAR/2);
-				actual_payout = Inflation::block_inflation();
-				assert_eq!(actual_payout, payout_by_year[year as usize]);
+			// Year middle block
+			Inflation::on_initialize(year * YEAR + YEAR / 2);
+			actual_payout = Inflation::block_inflation();
+			assert_eq!(actual_payout, payout_by_year[year as usize]);
 
-				// Year last block
-				Inflation::on_initialize((year + 1)*YEAR-1);
-				actual_payout = Inflation::block_inflation();
-				assert_eq!(actual_payout, payout_by_year[year as usize]);
-			}
-		});
-	}
+			// Year last block
+			Inflation::on_initialize((year + 1) * YEAR - 1);
+			actual_payout = Inflation::block_inflation();
+			assert_eq!(actual_payout, payout_by_year[year as usize]);
+		}
+	});
 }
modifiedpallets/nft-charge-transaction/Cargo.tomldiffbeforeafterboth
--- a/pallets/nft-charge-transaction/Cargo.toml
+++ b/pallets/nft-charge-transaction/Cargo.toml
@@ -20,15 +20,15 @@
 
 [dependencies]
 serde = { version = "1.0.119", default-features = false }
-frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-pallet-balances = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-pallet-transaction-payment = { default-features = false, version = "3.0.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-std = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-frame-benchmarking = { default-features = false, version = "3.0.0", optional = true, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-core = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-io = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-runtime = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
+frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+pallet-balances = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+pallet-transaction-payment = { default-features = false, version = "3.0.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-std = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+frame-benchmarking = { default-features = false, version = "3.0.0", optional = true, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-core = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-io = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-runtime = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
 
 pallet-nft-transaction-payment = { default-features = false, path="../nft-transaction-payment" }
 
modifiedpallets/nft-charge-transaction/src/lib.rsdiffbeforeafterboth
--- a/pallets/nft-charge-transaction/src/lib.rs
+++ b/pallets/nft-charge-transaction/src/lib.rs
@@ -11,47 +11,38 @@
 #[cfg(feature = "std")]
 pub use serde::*;
 
-#[cfg(feature = "runtime-benchmarks")]
-mod benchmarking;
-
 use codec::{Decode, Encode};
 use frame_support::traits::Get;
 use frame_support::{
 	decl_module, decl_storage,
-	weights::{
-		DispatchInfo, PostDispatchInfo, DispatchClass
-	}
+	weights::{DispatchInfo, PostDispatchInfo, DispatchClass},
 };
 use sp_runtime::{
-	traits::{ 
-		DispatchInfoOf, Dispatchable, PostDispatchInfoOf, Saturating, SaturatedConversion, SignedExtension, Zero,
+	traits::{
+		DispatchInfoOf, Dispatchable, PostDispatchInfoOf, Saturating, SaturatedConversion,
+		SignedExtension, Zero,
 	},
-	transaction_validity::{ 
+	transaction_validity::{
 		TransactionPriority, TransactionValidity, TransactionValidityError, ValidTransaction,
 	},
-	FixedPointOperand, DispatchResult
+	FixedPointOperand, DispatchResult,
 };
 use pallet_transaction_payment::OnChargeTransaction;
 use sp_std::prelude::*;
 
-
-pub trait Config: frame_system::Config + 
-    pallet_nft_transaction_payment::Config
-{
-
-}
+pub trait Config: frame_system::Config + pallet_nft_transaction_payment::Config {}
 
 decl_storage! {
-    trait Store for Module<T: Config> as NftTransactionPayment
-    {}
+	trait Store for Module<T: Config> as NftTransactionPayment
+	{}
 }
 
 decl_module! {
 
-	pub struct Module<T: Config> for enum Call 
-    where 
+	pub struct Module<T: Config> for enum Call
+	where
 		origin: T::Origin,
-    {}
+	{}
 }
 
 type BalanceOf<T> = <<T as pallet_transaction_payment::Config>::OnChargeTransaction as pallet_transaction_payment::OnChargeTransaction<T>>::Balance;
@@ -61,9 +52,7 @@
 #[derive(Encode, Decode, Clone, Eq, PartialEq)]
 pub struct ChargeTransactionPayment<T: Config>(#[codec(compact)] BalanceOf<T>);
 
-impl<T: Config + Send + Sync> sp_std::fmt::Debug 
-    for ChargeTransactionPayment<T>
-{
+impl<T: Config + Send + Sync> sp_std::fmt::Debug for ChargeTransactionPayment<T> {
 	#[cfg(feature = "std")]
 	fn fmt(&self, f: &mut sp_std::fmt::Formatter) -> sp_std::fmt::Result {
 		write!(f, "ChargeTransactionPayment<{:?}>", self.0)
@@ -76,32 +65,37 @@
 
 impl<T: Config> ChargeTransactionPayment<T>
 where
-	T::Call: Dispatchable<Info=DispatchInfo, PostInfo=PostDispatchInfo>,
-    BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,
+	T::Call: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo>,
+	BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,
 {
-    fn traditional_fee(
-        len: usize,
-        info: &DispatchInfoOf<T::Call>,
-        tip: BalanceOf<T>,
-    ) -> BalanceOf<T>
-    where
-        T::Call: Dispatchable<Info = DispatchInfo>,
-    {
-        <pallet_transaction_payment::Module<T>>::compute_fee(len as u32, info, tip)
-    }
+	fn traditional_fee(
+		len: usize,
+		info: &DispatchInfoOf<T::Call>,
+		tip: BalanceOf<T>,
+	) -> BalanceOf<T>
+	where
+		T::Call: Dispatchable<Info = DispatchInfo>,
+	{
+		<pallet_transaction_payment::Module<T>>::compute_fee(len as u32, info, tip)
+	}
 
-	fn get_priority(len: usize, info: &DispatchInfoOf<T::Call>, final_fee: BalanceOf<T>) -> TransactionPriority {
-        let weight_saturation = T::BlockWeights::get().max_block / info.weight.max(1);
-        let max_block_length = *T::BlockLength::get().max.get(DispatchClass::Normal);
-        let len_saturation = max_block_length as u64 / (len as u64).max(1);
-        let coefficient: BalanceOf<T> = weight_saturation
-            .min(len_saturation)
-            .saturated_into::<BalanceOf<T>>();
-        final_fee
-            .saturating_mul(coefficient)
-            .saturated_into::<TransactionPriority>()
-    }
+	fn get_priority(
+		len: usize,
+		info: &DispatchInfoOf<T::Call>,
+		final_fee: BalanceOf<T>,
+	) -> TransactionPriority {
+		let weight_saturation = T::BlockWeights::get().max_block / info.weight.max(1);
+		let max_block_length = *T::BlockLength::get().max.get(DispatchClass::Normal);
+		let len_saturation = max_block_length as u64 / (len as u64).max(1);
+		let coefficient: BalanceOf<T> = weight_saturation
+			.min(len_saturation)
+			.saturated_into::<BalanceOf<T>>();
+		final_fee
+			.saturating_mul(coefficient)
+			.saturated_into::<TransactionPriority>()
+	}
 
+	#[allow(clippy::type_complexity)]
     fn withdraw_fee(
         &self,
         who: &T::AccountId,
@@ -114,39 +108,38 @@
 			<<T as pallet_transaction_payment::Config>::OnChargeTransaction as pallet_transaction_payment::OnChargeTransaction<T>>::LiquidityInfo,
 		),
 		TransactionValidityError,
-	> {
-        let tip = self.0;
+	>{
+		let tip = self.0;
 
-        let fee = Self::traditional_fee(len, info, tip);
+		let fee = Self::traditional_fee(len, info, tip);
 
-        // Only mess with balances if fee is not zero.
-        if fee.is_zero() {
-            return <<T as pallet_transaction_payment::Config>::OnChargeTransaction as pallet_transaction_payment::OnChargeTransaction<T>>::withdraw_fee(who, call, info, fee, tip)
+		// Only mess with balances if fee is not zero.
+		if fee.is_zero() {
+			return <<T as pallet_transaction_payment::Config>::OnChargeTransaction as pallet_transaction_payment::OnChargeTransaction<T>>::withdraw_fee(who, call, info, fee, tip)
 			.map(|i| (fee, i));
-        }
+		}
 
-        // Determine who is paying transaction fee based on ecnomic model
-		// Parse call to extract collection ID and access collection sponsor	
+		// Determine who is paying transaction fee based on ecnomic model
+		// Parse call to extract collection ID and access collection sponsor
 		let sponsor = <pallet_nft_transaction_payment::Module<T>>::withdraw_type(who, call);
 
-        let who_pays_fee = sponsor.unwrap_or_else(|| who.clone());
+		let who_pays_fee = sponsor.unwrap_or_else(|| who.clone());
 
 		<<T as pallet_transaction_payment::Config>::OnChargeTransaction as pallet_transaction_payment::OnChargeTransaction<T>>::withdraw_fee(&who_pays_fee, call, info, fee, tip)
 			.map(|i| (fee, i))
-    }
+	}
 }
 
-impl<T: Config + Send + Sync> SignedExtension
-    for ChargeTransactionPayment<T>
+impl<T: Config + Send + Sync> SignedExtension for ChargeTransactionPayment<T>
 where
-    BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,
-	T::Call: Dispatchable<Info=DispatchInfo, PostInfo=PostDispatchInfo>,
+	BalanceOf<T>: Send + Sync + From<u64> + FixedPointOperand,
+	T::Call: Dispatchable<Info = DispatchInfo, PostInfo = PostDispatchInfo>,
 {
-    const IDENTIFIER: &'static str = "ChargeTransactionPayment";
-    type AccountId = T::AccountId;
-    type Call = T::Call;
-    type AdditionalSigned = ();
-    type Pre = (
+	const IDENTIFIER: &'static str = "ChargeTransactionPayment";
+	type AccountId = T::AccountId;
+	type Call = T::Call;
+	type AdditionalSigned = ();
+	type Pre = (
         // tip
         BalanceOf<T>,
         // who pays fee
@@ -154,50 +147,49 @@
 		// imbalance resulting from withdrawing the fee
 		<<T as pallet_transaction_payment::Config>::OnChargeTransaction as pallet_transaction_payment::OnChargeTransaction<T>>::LiquidityInfo,
     );
-    fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> {
-        Ok(())
-    }
+	fn additional_signed(&self) -> sp_std::result::Result<(), TransactionValidityError> {
+		Ok(())
+	}
 
-    fn validate(
-        &self,
-        who: &Self::AccountId,
-        call: &Self::Call,
-        info: &DispatchInfoOf<Self::Call>,
-        len: usize,
-    ) -> TransactionValidity {
+	fn validate(
+		&self,
+		who: &Self::AccountId,
+		call: &Self::Call,
+		info: &DispatchInfoOf<Self::Call>,
+		len: usize,
+	) -> TransactionValidity {
 		let (fee, _) = self.withdraw_fee(who, call, info, len)?;
 		Ok(ValidTransaction {
 			priority: Self::get_priority(len, info, fee),
 			..Default::default()
 		})
-    }
+	}
 
-    fn pre_dispatch(
-        self,
-        who: &Self::AccountId,
-        call: &Self::Call,
-        info: &DispatchInfoOf<Self::Call>,
-        len: usize,
-    ) -> Result<Self::Pre, TransactionValidityError> {
-        let (_fee, imbalance) = self.withdraw_fee(who, call, info, len)?;
-        Ok((self.0, who.clone(), imbalance))
-    }
+	fn pre_dispatch(
+		self,
+		who: &Self::AccountId,
+		call: &Self::Call,
+		info: &DispatchInfoOf<Self::Call>,
+		len: usize,
+	) -> Result<Self::Pre, TransactionValidityError> {
+		let (_fee, imbalance) = self.withdraw_fee(who, call, info, len)?;
+		Ok((self.0, who.clone(), imbalance))
+	}
 
-    fn post_dispatch(
-        pre: Self::Pre,
-        info: &DispatchInfoOf<Self::Call>,
-        post_info: &PostDispatchInfoOf<Self::Call>,
-        len: usize,
-        _result: &DispatchResult,
-    ) -> Result<(), TransactionValidityError> {
+	fn post_dispatch(
+		pre: Self::Pre,
+		info: &DispatchInfoOf<Self::Call>,
+		post_info: &PostDispatchInfoOf<Self::Call>,
+		len: usize,
+		_result: &DispatchResult,
+	) -> Result<(), TransactionValidityError> {
 		let (tip, who, imbalance) = pre;
 		let actual_fee = pallet_transaction_payment::Pallet::<T>::compute_actual_fee(
-			len as u32,
-			info,
-			post_info,
-			tip,
+			len as u32, info, post_info, tip,
 		);
-		<T as pallet_transaction_payment::Config>::OnChargeTransaction::correct_and_deposit_fee(&who, info, post_info, actual_fee, tip, imbalance)?;
+		<T as pallet_transaction_payment::Config>::OnChargeTransaction::correct_and_deposit_fee(
+			&who, info, post_info, actual_fee, tip, imbalance,
+		)?;
 		Ok(())
-    }
-}
\ No newline at end of file
+	}
+}
modifiedpallets/nft-transaction-payment/Cargo.tomldiffbeforeafterboth
--- a/pallets/nft-transaction-payment/Cargo.toml
+++ b/pallets/nft-transaction-payment/Cargo.toml
@@ -20,14 +20,14 @@
 
 [dependencies]
 serde = { version = "1.0.119", default-features = false }
-frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-pallet-transaction-payment = { default-features = false, version = "3.0.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-std = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-frame-benchmarking = { default-features = false, version = "3.0.0", optional = true, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-core = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-io = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-runtime = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
+frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+pallet-transaction-payment = { default-features = false, version = "3.0.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-std = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+frame-benchmarking = { default-features = false, version = "3.0.0", optional = true, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-core = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-io = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-runtime = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
 
 up-sponsorship = { default-features = false, path = "../../primitives/sponsorship", version = "0.1.0" }
 
modifiedpallets/nft-transaction-payment/src/benchmarking.rsdiffbeforeafterboth
--- a/pallets/nft-transaction-payment/src/benchmarking.rs
+++ b/pallets/nft-transaction-payment/src/benchmarking.rs
@@ -4,15 +4,15 @@
 
 use sp_std::prelude::*;
 use frame_system::RawOrigin;
-use frame_benchmarking::{benchmarks}; 
+use frame_benchmarking::{benchmarks};
 use frame_support::traits::OnInitialize;
 
 benchmarks! {
 
 	// on_initialize {
-        // let block1: T::BlockNumber = T::BlockNumber::from(1u32);
-        // let block2: T::BlockNumber = T::BlockNumber::from(2u32);
-        // Inflation::<T>::on_initialize(block1); // Create Treasury account
+		// let block1: T::BlockNumber = T::BlockNumber::from(1u32);
+		// let block2: T::BlockNumber = T::BlockNumber::from(2u32);
+		// Inflation::<T>::on_initialize(block1); // Create Treasury account
 	// }: { Inflation::<T>::on_initialize(block2); } // Benchmark deposit_into_existing path
 
 }
modifiedpallets/nft-transaction-payment/src/lib.rsdiffbeforeafterboth
--- a/pallets/nft-transaction-payment/src/lib.rs
+++ b/pallets/nft-transaction-payment/src/lib.rs
@@ -28,18 +28,15 @@
 }
 
 decl_module! {
-	pub struct Module<T: Config> for enum Call 
-    where 
+	pub struct Module<T: Config> for enum Call
+	where
 		origin: T::Origin,
-    {
+	{
 	}
 }
 
 impl<T: Config> Module<T> {
-	pub fn withdraw_type(
-		who: &T::AccountId,
-		call: &T::Call
-	) -> Option<T::AccountId> {
+	pub fn withdraw_type(who: &T::AccountId, call: &T::Call) -> Option<T::AccountId> {
 		T::SponsorshipHandler::get_sponsor(who, call)
 	}
-}
\ No newline at end of file
+}
modifiedpallets/nft/Cargo.tomldiffbeforeafterboth
--- a/pallets/nft/Cargo.toml
+++ b/pallets/nft/Cargo.toml
@@ -56,55 +56,55 @@
 default-features = false
 optional = true
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-support]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-system]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-balances]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-timestamp]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-randomness-collective-flip]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-std]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-contracts]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-transaction-payment]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.serde]
@@ -115,19 +115,19 @@
 [dependencies.sp-runtime]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-core]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-io]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 
@@ -149,12 +149,12 @@
 ethereum-tx-sign = { version = "3.0.4", optional = true }
 ethereum = { default-features = false, version = "0.7.1" }
 rlp = { default-features = false, version = "0.5.0" }
-sp-api = { default-features = false, version = '3.0.0', git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.3" }
+sp-api = { default-features = false, version = '3.0.0', git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.7" }
 
 evm-coder = { default-features = false, path = "../../crates/evm-coder" }
 primitive-types = { version = "0.9.0", default-features = false, features = ["serde_no_std"] }
 
-pallet-evm = { default-features = false, version = "4.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
-pallet-ethereum = { default-features = false, version = "2.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
+pallet-evm = { default-features = false, version = "5.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
+pallet-ethereum = { default-features = false, version = "3.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
 fp-evm = { default-features = false, version = '2.0.0', git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
 hex-literal = "0.3.1"
\ No newline at end of file
modifiedpallets/nft/src/benchmarking.rsdiffbeforeafterboth
--- a/pallets/nft/src/benchmarking.rs
+++ b/pallets/nft/src/benchmarking.rs
@@ -5,415 +5,415 @@
 
 use sp_std::prelude::*;
 use frame_system::RawOrigin;
-use frame_benchmarking::{benchmarks, account, whitelisted_caller};  // , TrackedStorageKey, 
+use frame_benchmarking::{benchmarks, account, whitelisted_caller}; // , TrackedStorageKey,
 
 const SEED: u32 = 1;
 /*
 fn default_nft_data() -> CreateItemData {
-    CreateItemData::NFT(CreateNftData { const_data: vec![1, 2, 3], variable_data: vec![3, 2, 1] })
+	CreateItemData::NFT(CreateNftData { const_data: vec![1, 2, 3], variable_data: vec![3, 2, 1] })
 }
 
 fn default_fungible_data () -> CreateItemData {
-    CreateItemData::Fungible(CreateFungibleData { })
+	CreateItemData::Fungible(CreateFungibleData { })
 }
 
 fn default_re_fungible_data () -> CreateItemData {
-    CreateItemData::ReFungible(CreateReFungibleData { const_data: vec![1, 2, 3], variable_data: vec![3, 2, 1] })
+	CreateItemData::ReFungible(CreateReFungibleData { const_data: vec![1, 2, 3], variable_data: vec![3, 2, 1] })
 }
 */
 
 benchmarks! {
 
-    create_collection {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = account("caller", 0, SEED);
-    }: _(RawOrigin::Signed(caller.clone()), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode)
+	create_collection {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = account("caller", 0, SEED);
+	}: _(RawOrigin::Signed(caller.clone()), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode)
 /*
-    verify {
-        assert_eq!(Nft::<T>::collection_id(2).owner, caller);
-    }
-    destroy_collection {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    }: _(RawOrigin::Signed(caller.clone()), 2)
+	verify {
+		assert_eq!(Nft::<T>::collection_id(2).owner, caller);
+	}
+	destroy_collection {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: _(RawOrigin::Signed(caller.clone()), 2)
 
-    add_to_white_list {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        let whitelist_account: T::AccountId = account("admin", 0, SEED);
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    }: add_to_white_list(RawOrigin::Signed(caller.clone()), 2, whitelist_account)
+	add_to_white_list {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		let whitelist_account: T::AccountId = account("admin", 0, SEED);
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: add_to_white_list(RawOrigin::Signed(caller.clone()), 2, whitelist_account)
 
-    remove_from_white_list {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        let whitelist_account: T::AccountId = account("admin", 0, SEED);
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        Nft::<T>::add_to_white_list(RawOrigin::Signed(caller.clone()).into(), 2, whitelist_account.clone())?;
-    }: remove_from_white_list(RawOrigin::Signed(caller.clone()), 2, whitelist_account)
+	remove_from_white_list {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		let whitelist_account: T::AccountId = account("admin", 0, SEED);
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		Nft::<T>::add_to_white_list(RawOrigin::Signed(caller.clone()).into(), 2, whitelist_account.clone())?;
+	}: remove_from_white_list(RawOrigin::Signed(caller.clone()), 2, whitelist_account)
 
-    set_public_access_mode {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    }: set_public_access_mode(RawOrigin::Signed(caller.clone()), 2, AccessMode::WhiteList)
+	set_public_access_mode {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: set_public_access_mode(RawOrigin::Signed(caller.clone()), 2, AccessMode::WhiteList)
 
-    set_mint_permission {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    }: set_mint_permission(RawOrigin::Signed(caller.clone()), 2, true)
+	set_mint_permission {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: set_mint_permission(RawOrigin::Signed(caller.clone()), 2, true)
 
-    change_collection_owner {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let new_owner: T::AccountId = account("admin", 0, SEED);
-    }: change_collection_owner(RawOrigin::Signed(caller.clone()), 2, new_owner)
+	change_collection_owner {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let new_owner: T::AccountId = account("admin", 0, SEED);
+	}: change_collection_owner(RawOrigin::Signed(caller.clone()), 2, new_owner)
 
-    add_collection_admin {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let new_admin: T::AccountId = account("admin", 0, SEED);
-    }: add_collection_admin(RawOrigin::Signed(caller.clone()), 2, new_admin)
+	add_collection_admin {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let new_admin: T::AccountId = account("admin", 0, SEED);
+	}: add_collection_admin(RawOrigin::Signed(caller.clone()), 2, new_admin)
 
-    remove_collection_admin {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let new_admin: T::AccountId = account("admin", 0, SEED);
-        Nft::<T>::add_collection_admin(RawOrigin::Signed(caller.clone()).into(), 2, new_admin.clone())?;
-    }: remove_collection_admin(RawOrigin::Signed(caller.clone()), 2, new_admin)
+	remove_collection_admin {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let new_admin: T::AccountId = account("admin", 0, SEED);
+		Nft::<T>::add_collection_admin(RawOrigin::Signed(caller.clone()).into(), 2, new_admin.clone())?;
+	}: remove_collection_admin(RawOrigin::Signed(caller.clone()), 2, new_admin)
 
-    set_collection_sponsor {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    }: set_collection_sponsor(RawOrigin::Signed(caller.clone()), 2, caller.clone())
+	set_collection_sponsor {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: set_collection_sponsor(RawOrigin::Signed(caller.clone()), 2, caller.clone())
 
-    confirm_sponsorship {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        Nft::<T>::set_collection_sponsor(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone())?;
-    }: confirm_sponsorship(RawOrigin::Signed(caller.clone()), 2)
+	confirm_sponsorship {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		Nft::<T>::set_collection_sponsor(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone())?;
+	}: confirm_sponsorship(RawOrigin::Signed(caller.clone()), 2)
 
-    remove_collection_sponsor {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        Nft::<T>::set_collection_sponsor(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone())?;
-        Nft::<T>::confirm_sponsorship(RawOrigin::Signed(caller.clone()).into(), 2)?;
-    }: remove_collection_sponsor(RawOrigin::Signed(caller.clone()), 2)
+	remove_collection_sponsor {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		Nft::<T>::set_collection_sponsor(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone())?;
+		Nft::<T>::confirm_sponsorship(RawOrigin::Signed(caller.clone()).into(), 2)?;
+	}: remove_collection_sponsor(RawOrigin::Signed(caller.clone()), 2)
 
-    // nft item
-    create_item_nft {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_nft_data();
-        
-    }: create_item(RawOrigin::Signed(caller.clone()), 2, caller.clone(), data)
+	// nft item
+	create_item_nft {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_nft_data();
 
-    #[extra]
-    create_item_nft_large {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        let mut nft_data = CreateNftData {
-            const_data: vec![],
-            variable_data: vec![]
-        };
-        for i in 0..1998 {
-            nft_data.const_data.push(10);
-            nft_data.variable_data.push(10);
-        }
-        let data = CreateItemData::NFT(nft_data);
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: create_item(RawOrigin::Signed(caller.clone()), 2, caller.clone(), data)
+
+	#[extra]
+	create_item_nft_large {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		let mut nft_data = CreateNftData {
+			const_data: vec![],
+			variable_data: vec![]
+		};
+		for i in 0..1998 {
+			nft_data.const_data.push(10);
+			nft_data.variable_data.push(10);
+		}
+		let data = CreateItemData::NFT(nft_data);
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+
+	}: create_item(RawOrigin::Signed(caller.clone()), 2, caller.clone(), data)
 
-    }: create_item(RawOrigin::Signed(caller.clone()), 2, caller.clone(), data)
+	// fungible item
+	create_item_fungible {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::Fungible(3);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_fungible_data();
+
+	}: create_item(RawOrigin::Signed(caller.clone()), 2, caller.clone(), data)
+
+	// refungible item
+	create_item_refungible {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::ReFungible(3);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_re_fungible_data();
 
-    // fungible item
-    create_item_fungible {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::Fungible(3);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_fungible_data();
+	}: create_item(RawOrigin::Signed(caller.clone()), 2, caller.clone(), data)
 
-    }: create_item(RawOrigin::Signed(caller.clone()), 2, caller.clone(), data)
+	burn_item {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_nft_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
 
-    // refungible item
-    create_item_refungible {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::ReFungible(3);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_re_fungible_data();
+	}: burn_item(RawOrigin::Signed(caller.clone()), 2, 1)
 
-    }: create_item(RawOrigin::Signed(caller.clone()), 2, caller.clone(), data)
+	transfer_nft {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let recipient: T::AccountId = account("recipient", 0, SEED);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_nft_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
 
-    burn_item {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_nft_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+	}: transfer(RawOrigin::Signed(caller.clone()), recipient.clone(), 2, 1, 1)
 
-    }: burn_item(RawOrigin::Signed(caller.clone()), 2, 1)
+	transfer_fungible {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::Fungible(3);
+		let recipient: T::AccountId = account("recipient", 0, SEED);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_fungible_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
 
-    transfer_nft {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let recipient: T::AccountId = account("recipient", 0, SEED);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_nft_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+	}: transfer(RawOrigin::Signed(caller.clone()), recipient.clone(), 2, 1, 1)
 
-    }: transfer(RawOrigin::Signed(caller.clone()), recipient.clone(), 2, 1, 1)
-    
-    transfer_fungible {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::Fungible(3);
-        let recipient: T::AccountId = account("recipient", 0, SEED);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_fungible_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+	transfer_refungible {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::ReFungible(3);
+		let recipient: T::AccountId = account("recipient", 0, SEED);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_re_fungible_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
 
-    }: transfer(RawOrigin::Signed(caller.clone()), recipient.clone(), 2, 1, 1)
+	}: transfer(RawOrigin::Signed(caller.clone()), recipient.clone(), 2, 1, 1)
 
-    transfer_refungible {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::ReFungible(3);
-        let recipient: T::AccountId = account("recipient", 0, SEED);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_re_fungible_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+	approve {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::ReFungible(3);
+		let recipient: T::AccountId = account("recipient", 0, SEED);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_re_fungible_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
 
-    }: transfer(RawOrigin::Signed(caller.clone()), recipient.clone(), 2, 1, 1)
+	}: approve(RawOrigin::Signed(caller.clone()), recipient.clone(), 2, 1)
 
-    approve {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::ReFungible(3);
-        let recipient: T::AccountId = account("recipient", 0, SEED);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_re_fungible_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+	// Nft
+	transfer_from_nft {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let recipient: T::AccountId = account("recipient", 0, SEED);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_nft_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+		Nft::<T>::approve(RawOrigin::Signed(caller.clone()).into(), recipient.clone(), 2, 1)?;
 
-    }: approve(RawOrigin::Signed(caller.clone()), recipient.clone(), 2, 1)
+	}: transfer_from(RawOrigin::Signed(caller.clone()), caller.clone(), recipient.clone(), 2, 1, 1)
 
-    // Nft
-    transfer_from_nft {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let recipient: T::AccountId = account("recipient", 0, SEED);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_nft_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
-        Nft::<T>::approve(RawOrigin::Signed(caller.clone()).into(), recipient.clone(), 2, 1)?;
+	// Fungible
+	transfer_from_fungible {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::Fungible(3);
+		let recipient: T::AccountId = account("recipient", 0, SEED);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_fungible_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+		Nft::<T>::approve(RawOrigin::Signed(caller.clone()).into(), recipient.clone(), 2, 1)?;
 
-    }: transfer_from(RawOrigin::Signed(caller.clone()), caller.clone(), recipient.clone(), 2, 1, 1)
+	}: transfer_from(RawOrigin::Signed(caller.clone()), caller.clone(), recipient.clone(), 2, 1, 1)
 
-    // Fungible
-    transfer_from_fungible {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::Fungible(3);
-        let recipient: T::AccountId = account("recipient", 0, SEED);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_fungible_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
-        Nft::<T>::approve(RawOrigin::Signed(caller.clone()).into(), recipient.clone(), 2, 1)?;
+	// ReFungible
+	transfer_from_refungible {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::ReFungible(3);
+		let recipient: T::AccountId = account("recipient", 0, SEED);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_re_fungible_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+		Nft::<T>::approve(RawOrigin::Signed(caller.clone()).into(), recipient.clone(), 2, 1)?;
 
-    }: transfer_from(RawOrigin::Signed(caller.clone()), caller.clone(), recipient.clone(), 2, 1, 1)
+	}: transfer_from(RawOrigin::Signed(caller.clone()), caller.clone(), recipient.clone(), 2, 1, 1)
 
-    // ReFungible
-    transfer_from_refungible {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::ReFungible(3);
-        let recipient: T::AccountId = account("recipient", 0, SEED);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_re_fungible_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
-        Nft::<T>::approve(RawOrigin::Signed(caller.clone()).into(), recipient.clone(), 2, 1)?;
+	enable_contract_sponsoring {
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
 
-    }: transfer_from(RawOrigin::Signed(caller.clone()), caller.clone(), recipient.clone(), 2, 1, 1)
+	}: enable_contract_sponsoring(RawOrigin::Signed(caller.clone()), caller.clone(), true)
 
-    enable_contract_sponsoring {
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+	set_offchain_schema {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::ReFungible(3);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
 
-    }: enable_contract_sponsoring(RawOrigin::Signed(caller.clone()), caller.clone(), true)
+	}: set_offchain_schema(RawOrigin::Signed(caller.clone()), 2, [1,2,3].to_vec())
 
-    set_offchain_schema {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::ReFungible(3);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	set_const_on_chain_schema {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::ReFungible(3);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: set_const_on_chain_schema(RawOrigin::Signed(caller.clone()), 2, [1,2,3].to_vec())
 
-    }: set_offchain_schema(RawOrigin::Signed(caller.clone()), 2, [1,2,3].to_vec())
+	set_variable_on_chain_schema {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::ReFungible(3);
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: set_variable_on_chain_schema(RawOrigin::Signed(caller.clone()), 2, [1,2,3].to_vec())
 
-    set_const_on_chain_schema {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::ReFungible(3);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    }: set_const_on_chain_schema(RawOrigin::Signed(caller.clone()), 2, [1,2,3].to_vec())
-    
-    set_variable_on_chain_schema {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::ReFungible(3);
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    }: set_variable_on_chain_schema(RawOrigin::Signed(caller.clone()), 2, [1,2,3].to_vec())
+	set_variable_meta_data {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let data = default_nft_data();
+		Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
 
-    set_variable_meta_data {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let data = default_nft_data();
-        Nft::<T>::create_item(RawOrigin::Signed(caller.clone()).into(), 2, caller.clone(), data)?;
+	}: set_variable_meta_data(RawOrigin::Signed(caller.clone()), 2, 1, [1, 2, 3].to_vec())
 
-    }: set_variable_meta_data(RawOrigin::Signed(caller.clone()), 2, 1, [1, 2, 3].to_vec())
+	set_schema_version {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+	}: set_schema_version(RawOrigin::Signed(caller.clone()), 2, SchemaVersion::Unique)
 
-    set_schema_version {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    }: set_schema_version(RawOrigin::Signed(caller.clone()), 2, SchemaVersion::Unique)
+	set_chain_limits {
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		let limits = ChainLimits {
+			collection_numbers_limit: 0,
+			account_token_ownership_limit: 0,
+			collections_admins_limit: 0,
+			custom_data_limit: 0,
+			nft_sponsor_transfer_timeout: 0,
+			fungible_sponsor_transfer_timeout: 0,
+			refungible_sponsor_transfer_timeout: 0
+		};
+	}: set_chain_limits(RawOrigin::Signed(caller.clone()), limits)
 
-    set_chain_limits {
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        let limits = ChainLimits { 
-            collection_numbers_limit: 0,
-            account_token_ownership_limit: 0,
-            collections_admins_limit: 0,
-            custom_data_limit: 0,
-            nft_sponsor_transfer_timeout: 0,
-            fungible_sponsor_transfer_timeout: 0,
-            refungible_sponsor_transfer_timeout: 0
-        };
-    }: set_chain_limits(RawOrigin::Signed(caller.clone()), limits)
+	set_contract_sponsoring_rate_limit {
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
+		let block_number: T::BlockNumber = 0.into();
+	}: set_contract_sponsoring_rate_limit(RawOrigin::Signed(caller.clone()), caller.clone(), block_number)
 
-    set_contract_sponsoring_rate_limit {
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-        let block_number: T::BlockNumber = 0.into();   
-    }: set_contract_sponsoring_rate_limit(RawOrigin::Signed(caller.clone()), caller.clone(), block_number)
+	set_collection_limits{
+		let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
+		let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
+		let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
+		let mode: CollectionMode = CollectionMode::NFT;
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
 
-    set_collection_limits{
-        let col_name1: Vec<u16> = "Test1".encode_utf16().collect::<Vec<u16>>();
-        let col_desc1: Vec<u16> = "TestDescription1".encode_utf16().collect::<Vec<u16>>();
-        let token_prefix1: Vec<u8> = b"token_prefix1".to_vec();
-        let mode: CollectionMode = CollectionMode::NFT;
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::create_collection(RawOrigin::Signed(caller.clone()).into(), col_name1.clone(), col_desc1.clone(), token_prefix1.clone(), mode.clone())?;
-    
-        let cl = CollectionLimits {
-            account_token_ownership_limit: 0,
-            sponsored_data_size: 0,
-            token_limit: 0,
-            sponsor_transfer_timeout: 0
-        };
+		let cl = CollectionLimits {
+			account_token_ownership_limit: 0,
+			sponsored_data_size: 0,
+			token_limit: 0,
+			sponsor_transfer_timeout: 0
+		};
 
-    }: set_collection_limits(RawOrigin::Signed(caller.clone()), 2, cl)
+	}: set_collection_limits(RawOrigin::Signed(caller.clone()), 2, cl)
 
-    add_to_contract_white_list{
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-    }: add_to_contract_white_list(RawOrigin::Signed(caller.clone()), caller.clone(), caller.clone())
+	add_to_contract_white_list{
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+	}: add_to_contract_white_list(RawOrigin::Signed(caller.clone()), caller.clone(), caller.clone())
 
-    remove_from_contract_white_list{
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-        Nft::<T>::add_to_contract_white_list(RawOrigin::Signed(caller.clone()).into(), caller.clone(), caller.clone())?;
-    }: remove_from_contract_white_list(RawOrigin::Signed(caller.clone()), caller.clone(), caller.clone())
+	remove_from_contract_white_list{
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+		Nft::<T>::add_to_contract_white_list(RawOrigin::Signed(caller.clone()).into(), caller.clone(), caller.clone())?;
+	}: remove_from_contract_white_list(RawOrigin::Signed(caller.clone()), caller.clone(), caller.clone())
 
-    toggle_contract_white_list{
-        let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
-    }: toggle_contract_white_list(RawOrigin::Signed(caller.clone()), caller.clone(), true)
+	toggle_contract_white_list{
+		let caller: T::AccountId = T::AccountId::from(whitelisted_caller());
+	}: toggle_contract_white_list(RawOrigin::Signed(caller.clone()), caller.clone(), true)
 */
 }
modifiedpallets/nft/src/default_weights.rsdiffbeforeafterboth
--- a/pallets/nft/src/default_weights.rs
+++ b/pallets/nft/src/default_weights.rs
@@ -2,154 +2,154 @@
 
 impl crate::WeightInfo for () {
 	fn create_collection() -> Weight {
-		(70_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(7 as Weight))
-			.saturating_add(DbWeight::get().writes(5 as Weight))
+		70_000_000_u64
+			.saturating_add(DbWeight::get().reads(7_u64))
+			.saturating_add(DbWeight::get().writes(5_u64))
 	}
 	fn destroy_collection() -> Weight {
-		(90_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(2 as Weight))
-			.saturating_add(DbWeight::get().writes(5 as Weight))
+		90_000_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(5_u64))
 	}
 	fn add_to_white_list() -> Weight {
-		(30_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(3 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn remove_from_white_list() -> Weight {
-		(35_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(3 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
+		30_000_000_u64
+			.saturating_add(DbWeight::get().reads(3_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn remove_from_white_list() -> Weight {
+		35_000_000_u64
+			.saturating_add(DbWeight::get().reads(3_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn set_public_access_mode() -> Weight {
-		(27_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(1 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
+		27_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn set_mint_permission() -> Weight {
-		(27_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(1 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
+		27_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn change_collection_owner() -> Weight {
-		(27_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(1 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
+		27_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn add_collection_admin() -> Weight {
-        (32_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(3 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
+		32_000_000_u64
+			.saturating_add(DbWeight::get().reads(3_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn remove_collection_admin() -> Weight {
-		(50_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_collection_sponsor() -> Weight {
-		(32_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }  
-    fn confirm_sponsorship() -> Weight {
-		(22_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(1 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }  
-    fn remove_collection_sponsor() -> Weight {
-		(24_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(1 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }  
-    fn create_item(s: usize, ) -> Weight {
-        (130_000_000 as Weight)
-            .saturating_add((2135 as Weight).saturating_mul(s as Weight).saturating_mul(500 as Weight)) // 500 is temporary multiplier, fee for storage
-            .saturating_add(DbWeight::get().reads(10 as Weight))
-            .saturating_add(DbWeight::get().writes(8 as Weight))
-    }  
-    fn burn_item() -> Weight {
-		(170_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(9 as Weight))
-            .saturating_add(DbWeight::get().writes(7 as Weight))
-    }  
-    fn transfer() -> Weight {
-        (125_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(7 as Weight))
-            .saturating_add(DbWeight::get().writes(7 as Weight))
-    }  
-    fn approve() -> Weight {
-        (45_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(3 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn transfer_from() -> Weight {
-        (150_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(9 as Weight))
-            .saturating_add(DbWeight::get().writes(8 as Weight))
-    }
-    fn set_offchain_schema() -> Weight {
-        (33_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_const_on_chain_schema() -> Weight {
-        (11_100_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_variable_on_chain_schema() -> Weight {
-        (11_100_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_variable_meta_data() -> Weight {
-        (17_500_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn enable_contract_sponsoring() -> Weight {
-        (13_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(1 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_schema_version() -> Weight {
-        (8_500_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_chain_limits() -> Weight {
-        (1_300_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_contract_sponsoring_rate_limit() -> Weight {
-        (3_500_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }    
-    fn set_variable_meta_data_sponsoring_rate_limit() -> Weight {
-        (3_500_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn toggle_contract_white_list() -> Weight {
-        (3_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }    
-    fn add_to_contract_white_list() -> Weight {
-        (3_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }    
-    fn remove_from_contract_white_list() -> Weight {
-        (3_200_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }
-    fn set_collection_limits() -> Weight {
-        (8_900_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
+		50_000_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_collection_sponsor() -> Weight {
+		32_000_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn confirm_sponsorship() -> Weight {
+		22_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn remove_collection_sponsor() -> Weight {
+		24_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn create_item(s: usize) -> Weight {
+		130_000_000_u64
+			.saturating_add(2135_u64.saturating_mul(s as Weight).saturating_mul(500_u64)) // 500 is temporary multiplier, fee for storage
+			.saturating_add(DbWeight::get().reads(10_u64))
+			.saturating_add(DbWeight::get().writes(8_u64))
+	}
+	fn burn_item() -> Weight {
+		170_000_000_u64
+			.saturating_add(DbWeight::get().reads(9_u64))
+			.saturating_add(DbWeight::get().writes(7_u64))
+	}
+	fn transfer() -> Weight {
+		125_000_000_u64
+			.saturating_add(DbWeight::get().reads(7_u64))
+			.saturating_add(DbWeight::get().writes(7_u64))
+	}
+	fn approve() -> Weight {
+		45_000_000_u64
+			.saturating_add(DbWeight::get().reads(3_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn transfer_from() -> Weight {
+		150_000_000_u64
+			.saturating_add(DbWeight::get().reads(9_u64))
+			.saturating_add(DbWeight::get().writes(8_u64))
+	}
+	fn set_offchain_schema() -> Weight {
+		33_000_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_const_on_chain_schema() -> Weight {
+		11_100_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_variable_on_chain_schema() -> Weight {
+		11_100_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_variable_meta_data() -> Weight {
+		17_500_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn enable_contract_sponsoring() -> Weight {
+		13_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_schema_version() -> Weight {
+		8_500_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_chain_limits() -> Weight {
+		1_300_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_contract_sponsoring_rate_limit() -> Weight {
+		3_500_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn set_variable_meta_data_sponsoring_rate_limit() -> Weight {
+		3_500_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn toggle_contract_white_list() -> Weight {
+		3_000_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn add_to_contract_white_list() -> Weight {
+		3_000_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn remove_from_contract_white_list() -> Weight {
+		3_200_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn set_collection_limits() -> Weight {
+		8_900_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
 }
modifiedpallets/nft/src/eth/account.rsdiffbeforeafterboth
--- a/pallets/nft/src/eth/account.rs
+++ b/pallets/nft/src/eth/account.rs
@@ -8,128 +8,129 @@
 use sp_std::vec::Vec;
 use sp_std::clone::Clone;
 
-pub trait CrossAccountId<AccountId>: 
-    Encode + EncodeLike + Decode + 
-    Clone + PartialEq + Ord + core::fmt::Debug // + 
-    // Serialize + Deserialize<'static> 
+pub trait CrossAccountId<AccountId>:
+	Encode + EncodeLike + Decode + Clone + PartialEq + Ord + core::fmt::Debug
+// +
+// Serialize + Deserialize<'static>
 {
-    fn as_sub(&self) -> &AccountId;
-    fn as_eth(&self) -> &H160;
+	fn as_sub(&self) -> &AccountId;
+	fn as_eth(&self) -> &H160;
 
-    fn from_sub(account: AccountId) -> Self;
-    fn from_eth(account: H160) -> Self;
+	fn from_sub(account: AccountId) -> Self;
+	fn from_eth(account: H160) -> Self;
 }
 
-#[derive(Eq)]
-#[derive(Serialize, Deserialize)]
+#[derive(Eq, Serialize, Deserialize)]
 pub struct BasicCrossAccountId<T: Config> {
-    /// If true - then ethereum is canonical encoding
-    from_ethereum: bool,
-    substrate: T::AccountId,
-    ethereum: H160,
+	/// If true - then ethereum is canonical encoding
+	from_ethereum: bool,
+	substrate: T::AccountId,
+	ethereum: H160,
 }
 
 impl<T: Config> core::fmt::Debug for BasicCrossAccountId<T> {
-    fn fmt(&self, fmt: &mut core::fmt::Formatter) -> core::fmt::Result {
-        if self.from_ethereum {
-            fmt.debug_tuple("CrossAccountId::Ethereum")
-                .field(&self.ethereum)
-                .finish()
-        } else {
-            fmt.debug_tuple("CrossAccountId::Substrate")
-                .field(&self.substrate)
-                .finish()
-        }
-    }
+	fn fmt(&self, fmt: &mut core::fmt::Formatter) -> core::fmt::Result {
+		if self.from_ethereum {
+			fmt.debug_tuple("CrossAccountId::Ethereum")
+				.field(&self.ethereum)
+				.finish()
+		} else {
+			fmt.debug_tuple("CrossAccountId::Substrate")
+				.field(&self.substrate)
+				.finish()
+		}
+	}
 }
 
 impl<T: Config> PartialOrd for BasicCrossAccountId<T> {
-    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
-        Some(self.substrate.cmp(&other.substrate))
-    }
+	fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+		Some(self.substrate.cmp(&other.substrate))
+	}
 }
 
 impl<T: Config> Ord for BasicCrossAccountId<T> {
-    fn cmp(&self, other: &Self) -> Ordering {
-        self.partial_cmp(other).expect("substrate account is total ordered")
-    }
+	fn cmp(&self, other: &Self) -> Ordering {
+		self.partial_cmp(other)
+			.expect("substrate account is total ordered")
+	}
 }
 
 impl<T: Config> PartialEq for BasicCrossAccountId<T> {
-    fn eq(&self, other: &Self) -> bool {
-        if self.from_ethereum == other.from_ethereum {
-            self.substrate == other.substrate && self.ethereum == other.ethereum
-        } else if self.from_ethereum {
-            // ethereum is canonical encoding, but we need to compare derived address
-            self.substrate == other.substrate
-        } else {
-            self.ethereum == other.ethereum
-        }
-    }
+	fn eq(&self, other: &Self) -> bool {
+		if self.from_ethereum == other.from_ethereum {
+			self.substrate == other.substrate && self.ethereum == other.ethereum
+		} else if self.from_ethereum {
+			// ethereum is canonical encoding, but we need to compare derived address
+			self.substrate == other.substrate
+		} else {
+			self.ethereum == other.ethereum
+		}
+	}
 }
 impl<T: Config> Clone for BasicCrossAccountId<T> {
-    fn clone(&self) -> Self {
-        Self {
-            from_ethereum: self.from_ethereum,
-            substrate: self.substrate.clone(),
-            ethereum: self.ethereum,
-        }
-    }
+	fn clone(&self) -> Self {
+		Self {
+			from_ethereum: self.from_ethereum,
+			substrate: self.substrate.clone(),
+			ethereum: self.ethereum,
+		}
+	}
 }
 impl<T: Config> Encode for BasicCrossAccountId<T> {
-    fn encode(&self) -> Vec<u8> {
-        let as_result = if !self.from_ethereum {
-            Ok(self.substrate.clone())
-        } else {
-            Err(self.ethereum)
-        };
-        as_result.encode()
-    }
+	fn encode(&self) -> Vec<u8> {
+		let as_result = if !self.from_ethereum {
+			Ok(self.substrate.clone())
+		} else {
+			Err(self.ethereum)
+		};
+		as_result.encode()
+	}
 }
 impl<T: Config> EncodeLike for BasicCrossAccountId<T> {}
 impl<T: Config> Decode for BasicCrossAccountId<T> {
-    fn decode<I>(input: &mut I) -> Result<Self, codec::Error>
-        where I: codec::Input
-    {
-        Ok(match <Result<T::AccountId, H160>>::decode(input)? {
-            Ok(s) => Self::from_sub(s),
-            Err(e) => Self::from_eth(e),
-        })
-    }
+	fn decode<I>(input: &mut I) -> Result<Self, codec::Error>
+	where
+		I: codec::Input,
+	{
+		Ok(match <Result<T::AccountId, H160>>::decode(input)? {
+			Ok(s) => Self::from_sub(s),
+			Err(e) => Self::from_eth(e),
+		})
+	}
 }
 impl<T: Config> CrossAccountId<T::AccountId> for BasicCrossAccountId<T> {
-    fn as_sub(&self) -> &T::AccountId {
-        &self.substrate
-    }
-    fn as_eth(&self) -> &H160 {
-        &self.ethereum
-    }
-    fn from_sub(substrate: T::AccountId) -> Self {
-        Self {
-            ethereum: T::EvmBackwardsAddressMapping::from_account_id(substrate.clone()),
-            substrate,
-            from_ethereum: false,
-        }
-    }
-    fn from_eth(ethereum: H160) -> Self {
-        Self {
-            ethereum,
-            substrate: T::EvmAddressMapping::into_account_id(ethereum),
-            from_ethereum: true,
-        }
-    }
+	fn as_sub(&self) -> &T::AccountId {
+		&self.substrate
+	}
+	fn as_eth(&self) -> &H160 {
+		&self.ethereum
+	}
+	fn from_sub(substrate: T::AccountId) -> Self {
+		Self {
+			ethereum: T::EvmBackwardsAddressMapping::from_account_id(substrate.clone()),
+			substrate,
+			from_ethereum: false,
+		}
+	}
+	fn from_eth(ethereum: H160) -> Self {
+		Self {
+			ethereum,
+			substrate: T::EvmAddressMapping::into_account_id(ethereum),
+			from_ethereum: true,
+		}
+	}
 }
 
 pub trait EvmBackwardsAddressMapping<AccountId> {
-    fn from_account_id(account_id: AccountId) -> H160;
+	fn from_account_id(account_id: AccountId) -> H160;
 }
 
 /// Should have same mapping as EnsureAddressTruncated
 pub struct MapBackwardsAddressTruncated;
 impl EvmBackwardsAddressMapping<AccountId32> for MapBackwardsAddressTruncated {
-    fn from_account_id(account_id: AccountId32) -> H160 {
-        let mut out = [0; 20];
-        out.copy_from_slice(&(account_id.as_ref() as &[u8])[0..20]);
-        H160(out)
-    }
-}
\ No newline at end of file
+	fn from_account_id(account_id: AccountId32) -> H160 {
+		let mut out = [0; 20];
+		out.copy_from_slice(&(account_id.as_ref() as &[u8])[0..20]);
+		H160(out)
+	}
+}
modifiedpallets/nft/src/eth/erc.rsdiffbeforeafterboth
--- a/pallets/nft/src/eth/erc.rs
+++ b/pallets/nft/src/eth/erc.rs
@@ -3,132 +3,199 @@
 
 #[solidity_interface]
 pub trait InlineNameSymbol {
-    type Error;
+	type Error;
 
-    fn name(&self) -> Result<string, Self::Error>;
-    fn symbol(&self) -> Result<string, Self::Error>;
+	fn name(&self) -> Result<string, Self::Error>;
+	fn symbol(&self) -> Result<string, Self::Error>;
 }
 
 #[solidity_interface]
 pub trait InlineTotalSupply {
-    type Error;
+	type Error;
 
-    fn total_supply(&self) -> Result<uint256, Self::Error>;
+	fn total_supply(&self) -> Result<uint256, Self::Error>;
 }
 
 #[solidity_interface]
 pub trait ERC165 {
-    type Error;
+	type Error;
 
-    fn supports_interface(&self, interface_id: bytes4) -> Result<bool, Self::Error>;
+	fn supports_interface(&self, interface_id: bytes4) -> Result<bool, Self::Error>;
 }
 
 #[solidity_interface(inline_is(InlineNameSymbol))]
 pub trait ERC721Metadata {
-    type Error;
+	type Error;
 
-    #[solidity(rename_selector = "tokenURI")]
-    fn token_uri(&self, token_id: uint256) -> Result<string, Self::Error>;
+	#[solidity(rename_selector = "tokenURI")]
+	fn token_uri(&self, token_id: uint256) -> Result<string, Self::Error>;
 }
 
 #[solidity_interface(inline_is(InlineTotalSupply))]
 pub trait ERC721Enumerable {
-    type Error;
+	type Error;
 
-    fn token_by_index(&self, index: uint256) -> Result<uint256, Self::Error>;
-    fn token_of_owner_by_index(&self, owner: address, index: uint256) -> Result<uint256, Self::Error>;
+	fn token_by_index(&self, index: uint256) -> Result<uint256, Self::Error>;
+	fn token_of_owner_by_index(
+		&self,
+		owner: address,
+		index: uint256,
+	) -> Result<uint256, Self::Error>;
 }
 
-
 #[derive(ToLog)]
 pub enum ERC721Events {
-    Transfer {
-        #[indexed] from: address,
-        #[indexed] to: address,
-        #[indexed] token_id: uint256,
-    },
-    Approval {
-        #[indexed] owner: address,
-        #[indexed] approved: address,
-        #[indexed] token_id: uint256,
-    },
-    #[allow(dead_code)]
-    ApprovalForAll {
-        #[indexed] owner: address,
-        #[indexed] operator: address,
-        approved: bool,
-    }
+	Transfer {
+		#[indexed]
+		from: address,
+		#[indexed]
+		to: address,
+		#[indexed]
+		token_id: uint256,
+	},
+	Approval {
+		#[indexed]
+		owner: address,
+		#[indexed]
+		approved: address,
+		#[indexed]
+		token_id: uint256,
+	},
+	#[allow(dead_code)]
+	ApprovalForAll {
+		#[indexed]
+		owner: address,
+		#[indexed]
+		operator: address,
+		approved: bool,
+	},
 }
 
 #[solidity_interface(is(ERC165), events(ERC721Events))]
 pub trait ERC721 {
-    type Error;
+	type Error;
 
-    fn balance_of(&self, owner: address) -> Result<uint256, Self::Error>;
-    fn owner_of(&self, token_id: uint256) -> Result<address, Self::Error>;
+	fn balance_of(&self, owner: address) -> Result<uint256, Self::Error>;
+	fn owner_of(&self, token_id: uint256) -> Result<address, Self::Error>;
 
-    #[solidity(rename_selector = "safeTransferFrom")]
-    fn safe_transfer_from_with_data(&mut self, from: address, to: address, token_id: uint256, data: bytes, value: value) -> Result<void, Self::Error>;
-    fn safe_transfer_from(&mut self, from: address, to: address, token_id: uint256, value: value) -> Result<void, Self::Error>;
+	#[solidity(rename_selector = "safeTransferFrom")]
+	fn safe_transfer_from_with_data(
+		&mut self,
+		from: address,
+		to: address,
+		token_id: uint256,
+		data: bytes,
+		value: value,
+	) -> Result<void, Self::Error>;
+	fn safe_transfer_from(
+		&mut self,
+		from: address,
+		to: address,
+		token_id: uint256,
+		value: value,
+	) -> Result<void, Self::Error>;
 
-    fn transfer_from(&mut self, caller: caller, from: address, to: address, token_id: uint256, value: value) -> Result<void, Self::Error>;
-    fn approve(&mut self, caller: caller, approved: address, token_id: uint256, value: value) -> Result<void, Self::Error>;
-    fn set_approval_for_all(&mut self, caller: caller, operator: address, approved: bool) -> Result<void, Self::Error>;
+	fn transfer_from(
+		&mut self,
+		caller: caller,
+		from: address,
+		to: address,
+		token_id: uint256,
+		value: value,
+	) -> Result<void, Self::Error>;
+	fn approve(
+		&mut self,
+		caller: caller,
+		approved: address,
+		token_id: uint256,
+		value: value,
+	) -> Result<void, Self::Error>;
+	fn set_approval_for_all(
+		&mut self,
+		caller: caller,
+		operator: address,
+		approved: bool,
+	) -> Result<void, Self::Error>;
 
-    fn get_approved(&self, token_id: uint256) -> Result<address, Self::Error>;
-    fn is_approved_for_all(&self, owner: address, operator: address) -> Result<address, Self::Error>;
+	fn get_approved(&self, token_id: uint256) -> Result<address, Self::Error>;
+	fn is_approved_for_all(
+		&self,
+		owner: address,
+		operator: address,
+	) -> Result<address, Self::Error>;
 }
 
 #[solidity_interface]
 pub trait ERC721UniqueExtensions {
-    type Error;
+	type Error;
 
-    fn transfer(&mut self, caller: caller, to: address, token_id: uint256, value: value) -> Result<void, Self::Error>;
+	fn transfer(
+		&mut self,
+		caller: caller,
+		to: address,
+		token_id: uint256,
+		value: value,
+	) -> Result<void, Self::Error>;
 }
 
-#[solidity_interface(is(ERC165, ERC721, ERC721Metadata, ERC721Enumerable, ERC721UniqueExtensions))]
+#[solidity_interface(is(
+	ERC165,
+	ERC721,
+	ERC721Metadata,
+	ERC721Enumerable,
+	ERC721UniqueExtensions
+))]
 pub trait UniqueNFT {
-    type Error;
+	type Error;
 }
 
 #[derive(ToLog)]
 pub enum ERC20Events {
-    Transfer {
-        #[indexed] from: address,
-        #[indexed] to: address,
-        value: uint256,
-    },
-    Approval {
-        #[indexed] owner: address,
-        #[indexed] spender: address,
-        value: uint256,
-    }
+	Transfer {
+		#[indexed]
+		from: address,
+		#[indexed]
+		to: address,
+		value: uint256,
+	},
+	Approval {
+		#[indexed]
+		owner: address,
+		#[indexed]
+		spender: address,
+		value: uint256,
+	},
 }
 
 #[solidity_interface(inline_is(InlineNameSymbol, InlineTotalSupply), events(ERC20Events))]
 pub trait ERC20 {
-    type Error;
-    
-    fn decimals(&self) -> Result<uint8, Self::Error>;
-    fn balance_of(&self, owner: address) -> Result<uint256, Self::Error>;
-    fn transfer(&mut self, caller: caller, to: address, value: uint256) -> Result<bool, Self::Error>;
-    fn transfer_from(&mut self, caller: caller, from: address, to: address, value: uint256) -> Result<bool, Self::Error>;
-    fn approve(&mut self, caller: caller, spender: address, value: uint256) -> Result<bool, Self::Error>;
-    fn allowance(&self, owner: address, spender: address) -> Result<uint256, Self::Error>;
+	type Error;
+
+	fn decimals(&self) -> Result<uint8, Self::Error>;
+	fn balance_of(&self, owner: address) -> Result<uint256, Self::Error>;
+	fn transfer(
+		&mut self,
+		caller: caller,
+		to: address,
+		value: uint256,
+	) -> Result<bool, Self::Error>;
+	fn transfer_from(
+		&mut self,
+		caller: caller,
+		from: address,
+		to: address,
+		value: uint256,
+	) -> Result<bool, Self::Error>;
+	fn approve(
+		&mut self,
+		caller: caller,
+		spender: address,
+		value: uint256,
+	) -> Result<bool, Self::Error>;
+	fn allowance(&self, owner: address, spender: address) -> Result<uint256, Self::Error>;
 }
 
 #[solidity_interface(is(ERC165, ERC20))]
 pub trait UniqueFungible {
-    type Error;
+	type Error;
 }
-
-/// Runtime metadata like helpers for evm
-#[solidity_interface]
-trait UniqueHelpers {
-    type Error;
-
-    /// Returns interface for NFT collections
-    fn nft_interface(&self) -> Result<string, Self::Error>;
-    /// Returns interface for Fungible collections
-    fn fungible_interface(&self) -> Result<string, Self::Error>;
-}
\ No newline at end of file
modifiedpallets/nft/src/eth/erc_impl.rsdiffbeforeafterboth
--- a/pallets/nft/src/eth/erc_impl.rs
+++ b/pallets/nft/src/eth/erc_impl.rs
@@ -56,7 +56,7 @@
 		Ok(index)
 	}
 
-	fn token_of_owner_by_index(&self, owner: address, index: uint256) -> Result<uint256> {
+	fn token_of_owner_by_index(&self, _owner: address, _index: uint256) -> Result<uint256> {
 		// TODO: Not implemetable
 		Err("not implemented".into())
 	}
@@ -77,7 +77,7 @@
 	fn owner_of(&self, token_id: uint256) -> Result<address> {
 		let token_id: u32 = token_id.try_into().map_err(|_| "token id overflow")?;
 		let token = <NftItemList<T>>::get(self.id, token_id).ok_or("unknown token")?;
-		Ok(token.owner.as_eth().clone())
+		Ok(*token.owner.as_eth())
 	}
 	fn safe_transfer_from_with_data(
 		&mut self,
@@ -114,7 +114,7 @@
 		let to = T::CrossAccountId::from_eth(to);
 		let token_id = token_id.try_into().map_err(|_| "token_id overflow")?;
 
-		<Module<T>>::transfer_from_internal(&caller, &from, &to, &self, token_id, 1)
+		<Module<T>>::transfer_from_internal(&caller, &from, &to, self, token_id, 1)
 			.map_err(|_| "transferFrom error")?;
 		Ok(())
 	}
@@ -130,7 +130,7 @@
 		let approved = T::CrossAccountId::from_eth(approved);
 		let token_id = token_id.try_into().map_err(|_| "token_id overflow")?;
 
-		<Module<T>>::approve_internal(&caller, &approved, &self, token_id, 1)
+		<Module<T>>::approve_internal(&caller, &approved, self, token_id, 1)
 			.map_err(|_| "approve internal")?;
 		Ok(())
 	}
@@ -170,13 +170,13 @@
 		caller: caller,
 		to: address,
 		token_id: uint256,
-		value: value,
+		_value: value,
 	) -> Result<void> {
 		let caller = T::CrossAccountId::from_eth(caller);
 		let to = T::CrossAccountId::from_eth(to);
 		let token_id = token_id.try_into().map_err(|_| "amount overflow")?;
 
-		<Module<T>>::transfer_internal(&caller, &to, &self, token_id, 1)
+		<Module<T>>::transfer_internal(&caller, &to, self, token_id, 1)
 			.map_err(|_| "transfer error")?;
 		Ok(())
 	}
@@ -226,7 +226,7 @@
 		let to = T::CrossAccountId::from_eth(to);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
 
-		<Module<T>>::transfer_internal(&caller, &to, &self, 1, amount)
+		<Module<T>>::transfer_internal(&caller, &to, self, 1, amount)
 			.map_err(|_| "transfer error")?;
 		Ok(true)
 	}
@@ -242,7 +242,7 @@
 		let to = T::CrossAccountId::from_eth(to);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
 
-		<Module<T>>::transfer_from_internal(&caller, &from, &to, &self, 1, amount)
+		<Module<T>>::transfer_from_internal(&caller, &from, &to, self, 1, amount)
 			.map_err(|_| "transferFrom error")?;
 		Ok(true)
 	}
@@ -251,7 +251,7 @@
 		let spender = T::CrossAccountId::from_eth(spender);
 		let amount = amount.try_into().map_err(|_| "amount overflow")?;
 
-		<Module<T>>::approve_internal(&caller, &spender, &self, 1, amount)
+		<Module<T>>::approve_internal(&caller, &spender, self, 1, amount)
 			.map_err(|_| "approve internal")?;
 		Ok(true)
 	}
modifiedpallets/nft/src/eth/log.rsdiffbeforeafterboth
--- a/pallets/nft/src/eth/log.rs
+++ b/pallets/nft/src/eth/log.rs
@@ -1,19 +1,19 @@
 use sp_std::cell::RefCell;
 use sp_std::vec::Vec;
-use sp_core::{H160, H256};
+
 use ethereum::Log;
 
 #[derive(Default)]
 pub struct LogRecorder(RefCell<Vec<Log>>);
 
 impl LogRecorder {
-    pub fn is_empty(&self) -> bool {
-        self.0.borrow().is_empty()
-    }
-    pub fn log(&self, log: Log) {
-        self.0.borrow_mut().push(log);
-    }
-    pub fn retrieve_logs(self) -> Vec<Log> {
-        self.0.into_inner()
-    }
+	pub fn is_empty(&self) -> bool {
+		self.0.borrow().is_empty()
+	}
+	pub fn log(&self, log: Log) {
+		self.0.borrow_mut().push(log);
+	}
+	pub fn retrieve_logs(self) -> Vec<Log> {
+		self.0.into_inner()
+	}
 }
modifiedpallets/nft/src/eth/mod.rsdiffbeforeafterboth
--- a/pallets/nft/src/eth/mod.rs
+++ b/pallets/nft/src/eth/mod.rs
@@ -28,7 +28,7 @@
 ];
 
 fn map_eth_to_id(eth: &H160) -> Option<CollectionId> {
-	if &eth[0..16] != ETH_ACCOUNT_PREFIX {
+	if eth[0..16] != ETH_ACCOUNT_PREFIX {
 		return None;
 	}
 	let mut id_bytes = [0; 4];
@@ -92,12 +92,9 @@
 				},
 			)?))
 		}
-		_ => {
-			return Err(StringError::from(
-				"erc calls only supported to fungible and nft collections for now",
-			)
-			.into())
-		}
+		_ => Err(StringError::from(
+			"erc calls only supported to fungible and nft collections for now",
+		)),
 	}
 }
 
@@ -111,7 +108,7 @@
 			.unwrap_or(false)
 	}
 	fn get_code(target: &H160) -> Option<Vec<u8>> {
-		map_eth_to_id(&target)
+		map_eth_to_id(target)
 			.and_then(<CollectionById<T>>::get)
 			.map(|collection| {
 				match collection.mode {
@@ -130,7 +127,7 @@
 		input: &[u8],
 		value: U256,
 	) -> Option<PrecompileOutput> {
-		let mut collection = map_eth_to_id(&target)
+		let mut collection = map_eth_to_id(target)
 			.and_then(|id| <CollectionHandle<T>>::get_with_gas_limit(id, gas_limit))?;
 		let (method_id, input) = AbiReader::new_call(input).unwrap();
 		let result = call_internal(&mut collection, *source, method_id, input, value);
@@ -156,11 +153,10 @@
 
 // TODO: This function is slow, and output can be memoized
 pub fn generate_transaction(collection_id: u32, chain_id: u64) -> ethereum::Transaction {
-	let contract = collection_id_to_address(collection_id);
-
 	// FIXME: Can be done on wasm runtime with https://github.com/paritytech/substrate/pull/8728
 	#[cfg(feature = "std")]
 	{
+		let contract = collection_id_to_address(collection_id);
 		let signed = ethereum_tx_sign::RawTransaction {
 			nonce: 0.into(),
 			to: Some(contract.0.into()),
@@ -183,6 +179,6 @@
 	}
 	#[cfg(not(feature = "std"))]
 	{
-		panic!("transaction generation not yet supported by wasm runtime")
+		panic!("transaction generation not yet supported by wasm runtime while generating transaction for collection_id {}, chain_id {}", collection_id, chain_id)
 	}
 }
modifiedpallets/nft/src/eth/sponsoring.rsdiffbeforeafterboth
--- a/pallets/nft/src/eth/sponsoring.rs
+++ b/pallets/nft/src/eth/sponsoring.rs
@@ -1,142 +1,170 @@
 //! Implements EVM sponsoring logic via OnChargeEVMTransaction
 
-use crate::{Collection, ChainLimit, CollectionById, Config, NftTransferBasket, FungibleTransferBasket, eth::account::EvmBackwardsAddressMapping};
+use crate::{
+	Collection, ChainLimit, CollectionById, Config, NftTransferBasket, FungibleTransferBasket,
+	eth::account::EvmBackwardsAddressMapping,
+};
 use evm_coder::abi::AbiReader;
-use frame_support::{storage::{StorageMap, StorageDoubleMap, StorageValue}, traits::Currency};
+use frame_support::{
+	storage::{StorageMap, StorageDoubleMap, StorageValue},
+	traits::Currency,
+};
 use pallet_evm::{EVMCurrencyAdapter, WithdrawReason};
 use sp_core::{H160, U256};
 use sp_std::prelude::*;
-use super::{account::CrossAccountId, erc::{UniqueFungibleCall, UniqueNFTCall, ERC721Call, ERC20Call, ERC721UniqueExtensionsCall}};
+use super::{
+	account::CrossAccountId,
+	erc::{UniqueFungibleCall, UniqueNFTCall, ERC721Call, ERC20Call, ERC721UniqueExtensionsCall},
+};
 use core::convert::TryInto;
 
 type NegativeImbalanceOf<C, T> =
-    <C as Currency<<T as frame_system::Config>::AccountId>>::NegativeImbalance;
+	<C as Currency<<T as frame_system::Config>::AccountId>>::NegativeImbalance;
 
 pub struct ChargeEvmTransaction;
 pub struct ChargeEvmLiquidityInfo<T>
 where
-    T: Config,
-    T: pallet_evm::Config,
+	T: Config,
+	T: pallet_evm::Config,
 {
-    who: H160,
-    negative_imbalance: NegativeImbalanceOf<<T as Config>::Currency, T>,
+	who: H160,
+	negative_imbalance: NegativeImbalanceOf<<T as Config>::Currency, T>,
 }
 
 struct AnyError;
 
-fn try_sponsor<T: Config>(caller: &H160, collection_id: u32, collection: &Collection<T>, call: &[u8]) -> Result<(), AnyError> {
-    let (method_id, mut reader) = AbiReader::new_call(call).map_err(|_| AnyError)?;
-    match &collection.mode {
-        crate::CollectionMode::NFT => {
-            let call: UniqueNFTCall = UniqueNFTCall::parse(method_id, &mut reader).map_err(|_| AnyError)?.ok_or(AnyError)?;
-            match call {
-                UniqueNFTCall::ERC721UniqueExtensions(ERC721UniqueExtensionsCall::Transfer {token_id, ..}) | UniqueNFTCall::ERC721(ERC721Call::TransferFrom {token_id, ..})  => {
-                    let token_id: u32 = token_id.try_into().map_err(|_| AnyError)?;
-                    let block_number = <frame_system::Module<T>>::block_number() as T::BlockNumber;
-                    let collection_limits = &collection.limits;
-                    let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {
-                        collection_limits.sponsor_transfer_timeout
-                    } else {
-                        ChainLimit::get().nft_sponsor_transfer_timeout
-                    };
+fn try_sponsor<T: Config>(
+	caller: &H160,
+	collection_id: u32,
+	collection: &Collection<T>,
+	call: &[u8],
+) -> Result<(), AnyError> {
+	let (method_id, mut reader) = AbiReader::new_call(call).map_err(|_| AnyError)?;
+	match &collection.mode {
+		crate::CollectionMode::NFT => {
+			let call: UniqueNFTCall = UniqueNFTCall::parse(method_id, &mut reader)
+				.map_err(|_| AnyError)?
+				.ok_or(AnyError)?;
+			match call {
+				UniqueNFTCall::ERC721UniqueExtensions(ERC721UniqueExtensionsCall::Transfer {
+					token_id,
+					..
+				})
+				| UniqueNFTCall::ERC721(ERC721Call::TransferFrom { token_id, .. }) => {
+					let token_id: u32 = token_id.try_into().map_err(|_| AnyError)?;
+					let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;
+					let collection_limits = &collection.limits;
+					let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {
+						collection_limits.sponsor_transfer_timeout
+					} else {
+						ChainLimit::get().nft_sponsor_transfer_timeout
+					};
 
-                    let mut sponsor = true;
-                    if <NftTransferBasket<T>>::contains_key(collection_id, token_id) {
-                        let last_tx_block = <NftTransferBasket<T>>::get(collection_id, token_id);
-                        let limit_time = last_tx_block + limit.into();
-                        if block_number <= limit_time {
-                            sponsor = false;
-                        }
-                    }
-                    if sponsor {
-                        <NftTransferBasket<T>>::insert(collection_id, token_id, block_number);
-                        return Ok(())
-                    }
-                },
-                _ => {},
-            }
-        },
-        crate::CollectionMode::Fungible(_) => {
-            let call: UniqueFungibleCall = UniqueFungibleCall::parse(method_id, &mut reader).map_err(|_| AnyError)?.ok_or(AnyError)?;
-            match call {
-                UniqueFungibleCall::ERC20(ERC20Call::Transfer {..})  => {
-                    let who = T::CrossAccountId::from_eth(caller.clone());
-                    let collection_limits = &collection.limits;
-                    let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {
-                        collection_limits.sponsor_transfer_timeout
-                    } else {
-                        ChainLimit::get().fungible_sponsor_transfer_timeout
-                    };
+					let mut sponsor = true;
+					if <NftTransferBasket<T>>::contains_key(collection_id, token_id) {
+						let last_tx_block = <NftTransferBasket<T>>::get(collection_id, token_id);
+						let limit_time = last_tx_block + limit.into();
+						if block_number <= limit_time {
+							sponsor = false;
+						}
+					}
+					if sponsor {
+						<NftTransferBasket<T>>::insert(collection_id, token_id, block_number);
+						return Ok(());
+					}
+				}
+				_ => {}
+			}
+		}
+		crate::CollectionMode::Fungible(_) => {
+			let call: UniqueFungibleCall = UniqueFungibleCall::parse(method_id, &mut reader)
+				.map_err(|_| AnyError)?
+				.ok_or(AnyError)?;
+			#[allow(clippy::single_match)]
+			match call {
+				UniqueFungibleCall::ERC20(ERC20Call::Transfer { .. }) => {
+					let who = T::CrossAccountId::from_eth(*caller);
+					let collection_limits = &collection.limits;
+					let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {
+						collection_limits.sponsor_transfer_timeout
+					} else {
+						ChainLimit::get().fungible_sponsor_transfer_timeout
+					};
 
-                    let block_number = <frame_system::Module<T>>::block_number() as T::BlockNumber;
-                    let mut sponsored = true;
-                    if <FungibleTransferBasket<T>>::contains_key(collection_id, who.as_sub()) {
-                        let last_tx_block = <FungibleTransferBasket<T>>::get(collection_id, who.as_sub());
-                        let limit_time = last_tx_block + limit.into();
-                        if block_number <= limit_time {
-                            sponsored = false;
-                        }
-                    }
-                    if sponsored {
-                        <FungibleTransferBasket<T>>::insert(collection_id, who.as_sub(), block_number);
-                        return Ok(())
-                    }
-                },
-                _ => {},
-            }
-        },
-        _ => {},
-    }
-    return Err(AnyError)
+					let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;
+					let mut sponsored = true;
+					if <FungibleTransferBasket<T>>::contains_key(collection_id, who.as_sub()) {
+						let last_tx_block =
+							<FungibleTransferBasket<T>>::get(collection_id, who.as_sub());
+						let limit_time = last_tx_block + limit.into();
+						if block_number <= limit_time {
+							sponsored = false;
+						}
+					}
+					if sponsored {
+						<FungibleTransferBasket<T>>::insert(
+							collection_id,
+							who.as_sub(),
+							block_number,
+						);
+						return Ok(());
+					}
+				}
+				_ => {}
+			}
+		}
+		_ => {}
+	}
+	Err(AnyError)
 }
 
 impl<T> pallet_evm::OnChargeEVMTransaction<T> for ChargeEvmTransaction
 where
-    T: Config,
-    T: pallet_evm::Config,
+	T: Config,
+	T: pallet_evm::Config,
 {
-    type LiquidityInfo = Option<ChargeEvmLiquidityInfo<T>>;
+	type LiquidityInfo = Option<ChargeEvmLiquidityInfo<T>>;
 
-    fn withdraw_fee(
-        who: &H160,
-        reason: WithdrawReason,
-        fee: U256,
-    ) -> Result<Self::LiquidityInfo, pallet_evm::Error<T>> {
-        let mut who_pays_fee = *who;
-        if let WithdrawReason::Call { target, input } = &reason {
-            if let Some(collection_id) = crate::eth::map_eth_to_id(&target) {
-                if let Some(collection) = <CollectionById<T>>::get(collection_id) {
-                    if let Some(sponsor) = collection.sponsorship.sponsor() {
-                        if try_sponsor(who, collection_id, &collection, &input).is_ok() {
-                            who_pays_fee =
-                                T::EvmBackwardsAddressMapping::from_account_id(sponsor.clone());
-                        }
-                    }
-                }
-            }
-        }
+	fn withdraw_fee(
+		who: &H160,
+		reason: WithdrawReason,
+		fee: U256,
+	) -> Result<Self::LiquidityInfo, pallet_evm::Error<T>> {
+		let mut who_pays_fee = *who;
+		if let WithdrawReason::Call { target, input } = &reason {
+			if let Some(collection_id) = crate::eth::map_eth_to_id(target) {
+				if let Some(collection) = <CollectionById<T>>::get(collection_id) {
+					if let Some(sponsor) = collection.sponsorship.sponsor() {
+						if try_sponsor(who, collection_id, &collection, input).is_ok() {
+							who_pays_fee =
+								T::EvmBackwardsAddressMapping::from_account_id(sponsor.clone());
+						}
+					}
+				}
+			}
+		}
 
-        // TODO: Pay fee from substrate address
-        let negative_imbalance = EVMCurrencyAdapter::<<T as Config>::Currency, ()>::withdraw_fee(
-            &who_pays_fee,
-            reason,
-            fee,
-        )?;
-        Ok(negative_imbalance.map(|i| ChargeEvmLiquidityInfo {
-            who: who_pays_fee,
-            negative_imbalance: i,
-        }))
-    }
+		// TODO: Pay fee from substrate address
+		let negative_imbalance = EVMCurrencyAdapter::<<T as Config>::Currency, ()>::withdraw_fee(
+			&who_pays_fee,
+			reason,
+			fee,
+		)?;
+		Ok(negative_imbalance.map(|i| ChargeEvmLiquidityInfo {
+			who: who_pays_fee,
+			negative_imbalance: i,
+		}))
+	}
 
-    fn correct_and_deposit_fee(
-        who: &H160,
-        corrected_fee: U256,
-        already_withdrawn: Self::LiquidityInfo,
-    ) -> Result<(), pallet_evm::Error<T>> {
-        EVMCurrencyAdapter::<<T as Config>::Currency, ()>::correct_and_deposit_fee(
-            &already_withdrawn.as_ref().map(|e| e.who).unwrap_or(*who),
-            corrected_fee,
-            already_withdrawn.map(|e| e.negative_imbalance),
-        )
-    }
+	fn correct_and_deposit_fee(
+		who: &H160,
+		corrected_fee: U256,
+		already_withdrawn: Self::LiquidityInfo,
+	) -> Result<(), pallet_evm::Error<T>> {
+		EVMCurrencyAdapter::<<T as Config>::Currency, ()>::correct_and_deposit_fee(
+			&already_withdrawn.as_ref().map(|e| e.who).unwrap_or(*who),
+			corrected_fee,
+			already_withdrawn.map(|e| e.negative_imbalance),
+		)
+	}
 }
modifiedpallets/nft/src/lib.rsdiffbeforeafterboth
--- a/pallets/nft/src/lib.rs
+++ b/pallets/nft/src/lib.rs
@@ -4,41 +4,44 @@
 //
 
 #![recursion_limit = "1024"]
-
 #![cfg_attr(not(feature = "std"), no_std)]
+#![allow(
+	clippy::too_many_arguments,
+	clippy::unnecessary_mut_passed,
+	clippy::unused_unit
+)]
 
 extern crate alloc;
 
 pub use serde::{Serialize, Deserialize};
 
 pub use frame_support::{
-    construct_runtime, decl_event, decl_module, decl_storage, decl_error,
-    dispatch::DispatchResult,
-    ensure, fail, parameter_types,
-    traits::{
-        Currency, ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced,
-        Randomness, IsSubType, WithdrawReasons,
-    },
-    weights::{
-        constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
-        DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,
-        WeightToFeePolynomial, DispatchClass,
-    },
-    StorageValue,
-    transactional,
+	construct_runtime, decl_event, decl_module, decl_storage, decl_error,
+	dispatch::DispatchResult,
+	ensure, fail, parameter_types,
+	traits::{
+		Currency, ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced,
+		Randomness, IsSubType, WithdrawReasons,
+	},
+	weights::{
+		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
+		DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,
+		WeightToFeePolynomial, DispatchClass,
+	},
+	StorageValue, transactional,
 };
 
 use frame_system::{self as system, ensure_signed, ensure_root};
 use sp_core::H160;
+use sp_std::vec;
 use sp_runtime::sp_std::prelude::Vec;
 use core::ops::{Deref, DerefMut};
 use core::cell::RefCell;
 use nft_data_structs::{
-    MAX_DECIMAL_POINTS, MAX_SPONSOR_TIMEOUT, MAX_TOKEN_OWNERSHIP, MAX_REFUNGIBLE_PIECES,
-	AccessMode, ChainLimits, Collection, CreateItemData, CollectionLimits,
-    CollectionId, CollectionMode, TokenId, 
-    SchemaVersion, SponsorshipState, Ownership,
-    NftItemType, FungibleItemType, ReFungibleItemType
+	MAX_DECIMAL_POINTS, MAX_SPONSOR_TIMEOUT, MAX_TOKEN_OWNERSHIP, MAX_REFUNGIBLE_PIECES,
+	AccessMode, ChainLimits, Collection, CreateItemData, CollectionLimits, CollectionId,
+	CollectionMode, TokenId, SchemaVersion, SponsorshipState, Ownership, NftItemType,
+	FungibleItemType, ReFungibleItemType,
 };
 use pallet_ethereum::EthereumTransactionSender;
 
@@ -65,186 +68,186 @@
 	fn destroy_collection() -> Weight;
 	fn add_to_white_list() -> Weight;
 	fn remove_from_white_list() -> Weight;
-    fn set_public_access_mode() -> Weight;
-    fn set_mint_permission() -> Weight;
-    fn change_collection_owner() -> Weight;
-    fn add_collection_admin() -> Weight;
-    fn remove_collection_admin() -> Weight;
-    fn set_collection_sponsor() -> Weight;
-    fn confirm_sponsorship() -> Weight;
-    fn remove_collection_sponsor() -> Weight;
-    fn create_item(s: usize) -> Weight;
-    fn burn_item() -> Weight;
-    fn transfer() -> Weight;
-    fn approve() -> Weight;
-    fn transfer_from() -> Weight;
-    fn set_offchain_schema() -> Weight;
-    fn set_const_on_chain_schema() -> Weight;
-    fn set_variable_on_chain_schema() -> Weight;
-    fn set_variable_meta_data() -> Weight;
-    fn enable_contract_sponsoring() -> Weight;
-    fn set_schema_version() -> Weight;
-    fn set_chain_limits() -> Weight;
-    fn set_contract_sponsoring_rate_limit() -> Weight;
-    fn set_variable_meta_data_sponsoring_rate_limit() -> Weight;
-    fn toggle_contract_white_list() -> Weight;
-    fn add_to_contract_white_list() -> Weight;
-    fn remove_from_contract_white_list() -> Weight;
-    fn set_collection_limits() -> Weight;
+	fn set_public_access_mode() -> Weight;
+	fn set_mint_permission() -> Weight;
+	fn change_collection_owner() -> Weight;
+	fn add_collection_admin() -> Weight;
+	fn remove_collection_admin() -> Weight;
+	fn set_collection_sponsor() -> Weight;
+	fn confirm_sponsorship() -> Weight;
+	fn remove_collection_sponsor() -> Weight;
+	fn create_item(s: usize) -> Weight;
+	fn burn_item() -> Weight;
+	fn transfer() -> Weight;
+	fn approve() -> Weight;
+	fn transfer_from() -> Weight;
+	fn set_offchain_schema() -> Weight;
+	fn set_const_on_chain_schema() -> Weight;
+	fn set_variable_on_chain_schema() -> Weight;
+	fn set_variable_meta_data() -> Weight;
+	fn enable_contract_sponsoring() -> Weight;
+	fn set_schema_version() -> Weight;
+	fn set_chain_limits() -> Weight;
+	fn set_contract_sponsoring_rate_limit() -> Weight;
+	fn set_variable_meta_data_sponsoring_rate_limit() -> Weight;
+	fn toggle_contract_white_list() -> Weight;
+	fn add_to_contract_white_list() -> Weight;
+	fn remove_from_contract_white_list() -> Weight;
+	fn set_collection_limits() -> Weight;
 }
 
 decl_error! {
 	/// Error for non-fungible-token module.
 	pub enum Error for Module<T: Config> {
-        /// Total collections bound exceeded.
-        TotalCollectionsLimitExceeded,
+		/// Total collections bound exceeded.
+		TotalCollectionsLimitExceeded,
 		/// Decimal_points parameter must be lower than MAX_DECIMAL_POINTS constant, currently it is 30.
-        CollectionDecimalPointLimitExceeded, 
-        /// Collection name can not be longer than 63 char.
-        CollectionNameLimitExceeded, 
-        /// Collection description can not be longer than 255 char.
-        CollectionDescriptionLimitExceeded, 
-        /// Token prefix can not be longer than 15 char.
-        CollectionTokenPrefixLimitExceeded,
-        /// This collection does not exist.
-        CollectionNotFound,
-        /// Item not exists.
-        TokenNotFound,
-        /// Admin not found
-        AdminNotFound,
-        /// Arithmetic calculation overflow.
-        NumOverflow,       
-        /// Account already has admin role.
-        AlreadyAdmin,  
-        /// You do not own this collection.
-        NoPermission,
-        /// This address is not set as sponsor, use setCollectionSponsor first.
-        ConfirmUnsetSponsorFail,
-        /// Collection is not in mint mode.
-        PublicMintingNotAllowed,
-        /// Sender parameter and item owner must be equal.
-        MustBeTokenOwner,
-        /// Item balance not enough.
-        TokenValueTooLow,
-        /// Size of item is too large.
-        NftSizeLimitExceeded,
-        /// No approve found
-        ApproveNotFound,
-        /// Requested value more than approved.
-        TokenValueNotEnough,
-        /// Only approved addresses can call this method.
-        ApproveRequired,
-        /// Address is not in white list.
-        AddresNotInWhiteList,
-        /// Number of collection admins bound exceeded.
-        CollectionAdminsLimitExceeded,
-        /// Owned tokens by a single address bound exceeded.
-        AddressOwnershipLimitExceeded,
-        /// Length of items properties must be greater than 0.
-        EmptyArgument,
-        /// const_data exceeded data limit.
-        TokenConstDataLimitExceeded,
-        /// variable_data exceeded data limit.
-        TokenVariableDataLimitExceeded,
-        /// Not NFT item data used to mint in NFT collection.
-        NotNftDataUsedToMintNftCollectionToken,
-        /// Not Fungible item data used to mint in Fungible collection.
-        NotFungibleDataUsedToMintFungibleCollectionToken,
-        /// Not Re Fungible item data used to mint in Re Fungible collection.
-        NotReFungibleDataUsedToMintReFungibleCollectionToken,
-        /// Unexpected collection type.
-        UnexpectedCollectionType,
-        /// Can't store metadata in fungible tokens.
-        CantStoreMetadataInFungibleTokens,
-        /// Collection token limit exceeded
-        CollectionTokenLimitExceeded,
-        /// Account token limit exceeded per collection
-        AccountTokenLimitExceeded,
-        /// Collection limit bounds per collection exceeded
-        CollectionLimitBoundsExceeded,
-        /// Tried to enable permissions which are only permitted to be disabled
-        OwnerPermissionsCantBeReverted,
-        /// Schema data size limit bound exceeded
-        SchemaDataLimitExceeded,
-        /// Maximum refungibility exceeded
-        WrongRefungiblePieces,
-        /// createRefungible should be called with one owner
-        BadCreateRefungibleCall,
-        /// Gas limit exceeded
-        OutOfGas,
+		CollectionDecimalPointLimitExceeded,
+		/// Collection name can not be longer than 63 char.
+		CollectionNameLimitExceeded,
+		/// Collection description can not be longer than 255 char.
+		CollectionDescriptionLimitExceeded,
+		/// Token prefix can not be longer than 15 char.
+		CollectionTokenPrefixLimitExceeded,
+		/// This collection does not exist.
+		CollectionNotFound,
+		/// Item not exists.
+		TokenNotFound,
+		/// Admin not found
+		AdminNotFound,
+		/// Arithmetic calculation overflow.
+		NumOverflow,
+		/// Account already has admin role.
+		AlreadyAdmin,
+		/// You do not own this collection.
+		NoPermission,
+		/// This address is not set as sponsor, use setCollectionSponsor first.
+		ConfirmUnsetSponsorFail,
+		/// Collection is not in mint mode.
+		PublicMintingNotAllowed,
+		/// Sender parameter and item owner must be equal.
+		MustBeTokenOwner,
+		/// Item balance not enough.
+		TokenValueTooLow,
+		/// Size of item is too large.
+		NftSizeLimitExceeded,
+		/// No approve found
+		ApproveNotFound,
+		/// Requested value more than approved.
+		TokenValueNotEnough,
+		/// Only approved addresses can call this method.
+		ApproveRequired,
+		/// Address is not in white list.
+		AddresNotInWhiteList,
+		/// Number of collection admins bound exceeded.
+		CollectionAdminsLimitExceeded,
+		/// Owned tokens by a single address bound exceeded.
+		AddressOwnershipLimitExceeded,
+		/// Length of items properties must be greater than 0.
+		EmptyArgument,
+		/// const_data exceeded data limit.
+		TokenConstDataLimitExceeded,
+		/// variable_data exceeded data limit.
+		TokenVariableDataLimitExceeded,
+		/// Not NFT item data used to mint in NFT collection.
+		NotNftDataUsedToMintNftCollectionToken,
+		/// Not Fungible item data used to mint in Fungible collection.
+		NotFungibleDataUsedToMintFungibleCollectionToken,
+		/// Not Re Fungible item data used to mint in Re Fungible collection.
+		NotReFungibleDataUsedToMintReFungibleCollectionToken,
+		/// Unexpected collection type.
+		UnexpectedCollectionType,
+		/// Can't store metadata in fungible tokens.
+		CantStoreMetadataInFungibleTokens,
+		/// Collection token limit exceeded
+		CollectionTokenLimitExceeded,
+		/// Account token limit exceeded per collection
+		AccountTokenLimitExceeded,
+		/// Collection limit bounds per collection exceeded
+		CollectionLimitBoundsExceeded,
+		/// Tried to enable permissions which are only permitted to be disabled
+		OwnerPermissionsCantBeReverted,
+		/// Schema data size limit bound exceeded
+		SchemaDataLimitExceeded,
+		/// Maximum refungibility exceeded
+		WrongRefungiblePieces,
+		/// createRefungible should be called with one owner
+		BadCreateRefungibleCall,
+		/// Gas limit exceeded
+		OutOfGas,
 	}
 }
 
 pub struct CollectionHandle<T: Config> {
-    pub id: CollectionId,
-    collection: Collection<T>,
-    logs: eth::log::LogRecorder,
-    evm_address: H160,
-    gas_limit: RefCell<u64>,
+	pub id: CollectionId,
+	collection: Collection<T>,
+	logs: eth::log::LogRecorder,
+	evm_address: H160,
+	gas_limit: RefCell<u64>,
 }
 impl<T: Config> CollectionHandle<T> {
 	pub fn get_with_gas_limit(id: CollectionId, gas_limit: u64) -> Option<Self> {
-		<CollectionById<T>>::get(id)
-			.map(|collection| Self {
-				id,
-				collection,
-                logs: eth::log::LogRecorder::default(),
-                evm_address: eth::collection_id_to_address(id),
-                gas_limit: RefCell::new(gas_limit),
-			})
+		<CollectionById<T>>::get(id).map(|collection| Self {
+			id,
+			collection,
+			logs: eth::log::LogRecorder::default(),
+			evm_address: eth::collection_id_to_address(id),
+			gas_limit: RefCell::new(gas_limit),
+		})
+	}
+	pub fn get(id: CollectionId) -> Option<Self> {
+		Self::get_with_gas_limit(id, u64::MAX)
+	}
+	pub fn gas_left(&self) -> u64 {
+		*self.gas_limit.borrow()
+	}
+	pub fn consume_gas(&self, gas: u64) -> DispatchResult {
+		let mut gas_limit = self.gas_limit.borrow_mut();
+		if *gas_limit < gas {
+			fail!(Error::<T>::OutOfGas);
+		}
+		*gas_limit -= gas;
+		Ok(())
+	}
+	pub fn log(&self, log: impl evm_coder::ToLog) {
+		self.logs.log(log.to_log(self.evm_address))
+	}
+	pub fn into_inner(self) -> Collection<T> {
+		self.collection
 	}
-    pub fn get(id: CollectionId) -> Option<Self> {
-        Self::get_with_gas_limit(id, u64::MAX)
-    }
-    pub fn gas_left(&self) -> u64 {
-        *self.gas_limit.borrow()
-    }
-    pub fn consume_gas(&self, gas: u64) -> DispatchResult {
-        let mut gas_limit = self.gas_limit.borrow_mut();
-        if *gas_limit < gas {
-            fail!(Error::<T>::OutOfGas);
-        }
-        *gas_limit -= gas;
-        Ok(())
-    }
-    pub fn log(&self, log: impl evm_coder::ToLog) {
-        self.logs.log(log.to_log(self.evm_address))
-    }
-    pub fn into_inner(self) -> Collection<T> {
-        self.collection.clone()
-    }
 }
 impl<T: Config> Deref for CollectionHandle<T> {
-    type Target = Collection<T>;
+	type Target = Collection<T>;
 
-    fn deref(&self) -> &Self::Target {
-        &self.collection
-    }
+	fn deref(&self) -> &Self::Target {
+		&self.collection
+	}
 }
 
 impl<T: Config> DerefMut for CollectionHandle<T> {
-    fn deref_mut(&mut self) -> &mut Self::Target {
-        &mut self.collection
-    }
+	fn deref_mut(&mut self) -> &mut Self::Target {
+		&mut self.collection
+	}
 }
 
 pub trait Config: system::Config + Sized {
-    type Event: From<Event<Self>> + Into<<Self as system::Config>::Event>;
+	type Event: From<Event<Self>> + Into<<Self as system::Config>::Event>;
 
-    /// Weight information for extrinsics in this pallet.
+	/// Weight information for extrinsics in this pallet.
 	type WeightInfo: WeightInfo;
 
-    type EvmAddressMapping: pallet_evm::AddressMapping<Self::AccountId>;
-    type EvmBackwardsAddressMapping: EvmBackwardsAddressMapping<Self::AccountId>;
-    type EvmWithdrawOrigin: pallet_evm::EnsureAddressOrigin<Self::Origin, Success = Self::AccountId>;
+	type EvmAddressMapping: pallet_evm::AddressMapping<Self::AccountId>;
+	type EvmBackwardsAddressMapping: EvmBackwardsAddressMapping<Self::AccountId>;
 
 	type CrossAccountId: CrossAccountId<Self::AccountId>;
-    type Currency: Currency<Self::AccountId>;
-    type CollectionCreationPrice: Get<<<Self as Config>::Currency as Currency<Self::AccountId>>::Balance>;
-    type TreasuryAccountId: Get<Self::AccountId>;
+	type Currency: Currency<Self::AccountId>;
+	type CollectionCreationPrice: Get<
+		<<Self as Config>::Currency as Currency<Self::AccountId>>::Balance,
+	>;
+	type TreasuryAccountId: Get<Self::AccountId>;
 
-    type EthereumChainId: Get<u64>;
-    type EthereumTransactionSender: pallet_ethereum::EthereumTransactionSender;
+	type EthereumChainId: Get<u64>;
+	type EthereumTransactionSender: pallet_ethereum::EthereumTransactionSender;
 }
 
 // # Used definitions
@@ -270,1094 +273,1128 @@
 // ?3 - real -> controlled
 //      no confirmation required, so addresses can be easily generated
 decl_storage! {
-    trait Store for Module<T: Config> as Nft {
+	trait Store for Module<T: Config> as Nft {
 
-        //#region Private members
-        /// Id of next collection
-        CreatedCollectionCount: u32;
-        /// Used for migrations
-        ChainVersion: u64;
-        /// Id of last collection token
-        /// Collection id (controlled?1)
-        ItemListIndex: map hasher(blake2_128_concat) CollectionId => TokenId;
-        //#endregion
+		//#region Private members
+		/// Id of next collection
+		CreatedCollectionCount: u32;
+		/// Used for migrations
+		ChainVersion: u64;
+		/// Id of last collection token
+		/// Collection id (controlled?1)
+		ItemListIndex: map hasher(blake2_128_concat) CollectionId => TokenId;
+		//#endregion
 
-        //#region Chain limits struct
-        pub ChainLimit get(fn chain_limit) config(): ChainLimits;
-        //#endregion
+		//#region Chain limits struct
+		pub ChainLimit get(fn chain_limit) config(): ChainLimits;
+		//#endregion
 
-        //#region Bound counters
-        /// Amount of collections destroyed, used for total amount tracking with
-        /// CreatedCollectionCount
-        DestroyedCollectionCount: u32;
-        /// Total amount of account owned tokens (NFTs + RFTs + unique fungibles)
-        /// Account id (real)
-        pub AccountItemCount get(fn account_item_count): map hasher(twox_64_concat) T::AccountId => u32;
-        //#endregion
+		//#region Bound counters
+		/// Amount of collections destroyed, used for total amount tracking with
+		/// CreatedCollectionCount
+		DestroyedCollectionCount: u32;
+		/// Total amount of account owned tokens (NFTs + RFTs + unique fungibles)
+		/// Account id (real)
+		pub AccountItemCount get(fn account_item_count): map hasher(twox_64_concat) T::AccountId => u32;
+		//#endregion
 
-        //#region Basic collections
-        /// Collection info
-        /// Collection id (controlled?1)
-        pub CollectionById get(fn collection_id) config(): map hasher(blake2_128_concat) CollectionId => Option<Collection<T>> = None;
-        /// List of collection admins
-        /// Collection id (controlled?2)
-        pub AdminList get(fn admin_list_collection): map hasher(blake2_128_concat) CollectionId => Vec<T::CrossAccountId>;
-        /// Whitelisted collection users
-        /// Collection id (controlled?2), user id (controlled?3)
-        pub WhiteList get(fn white_list): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => bool;
-        //#endregion
+		//#region Basic collections
+		/// Collection info
+		/// Collection id (controlled?1)
+		pub CollectionById get(fn collection_id) config(): map hasher(blake2_128_concat) CollectionId => Option<Collection<T>> = None;
+		/// List of collection admins
+		/// Collection id (controlled?2)
+		pub AdminList get(fn admin_list_collection): map hasher(blake2_128_concat) CollectionId => Vec<T::CrossAccountId>;
+		/// Whitelisted collection users
+		/// Collection id (controlled?2), user id (controlled?3)
+		pub WhiteList get(fn white_list): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => bool;
+		//#endregion
 
-        /// How many of collection items user have
-        /// Collection id (controlled?2), account id (real)
-        pub Balance get(fn balance_count): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => u128;
+		/// How many of collection items user have
+		/// Collection id (controlled?2), account id (real)
+		pub Balance get(fn balance_count): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => u128;
 
-        /// Amount of items which spender can transfer out of owners account (via transferFrom)
-        /// Collection id (controlled?2), (token id (controlled ?2) + owner account id (real) + spender account id (controlled?3))
-        /// TODO: Off chain worker should remove from this map when token gets removed
-        pub Allowances get(fn approved): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) (TokenId, T::AccountId, T::AccountId) => u128;
+		/// Amount of items which spender can transfer out of owners account (via transferFrom)
+		/// Collection id (controlled?2), (token id (controlled ?2) + owner account id (real) + spender account id (controlled?3))
+		/// TODO: Off chain worker should remove from this map when token gets removed
+		pub Allowances get(fn approved): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) (TokenId, T::AccountId, T::AccountId) => u128;
 
-        //#region Item collections
-        /// Collection id (controlled?2), token id (controlled?1)
-        pub NftItemList get(fn nft_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<NftItemType<T::CrossAccountId>>;
-        /// Collection id (controlled?2), owner (controlled?2)
-        pub FungibleItemList get(fn fungible_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => FungibleItemType;
-        /// Collection id (controlled?2), token id (controlled?1)
-        pub ReFungibleItemList get(fn refungible_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<ReFungibleItemType<T::CrossAccountId>>;
-        //#endregion
+		//#region Item collections
+		/// Collection id (controlled?2), token id (controlled?1)
+		pub NftItemList get(fn nft_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<NftItemType<T::CrossAccountId>>;
+		/// Collection id (controlled?2), owner (controlled?2)
+		pub FungibleItemList get(fn fungible_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => FungibleItemType;
+		/// Collection id (controlled?2), token id (controlled?1)
+		pub ReFungibleItemList get(fn refungible_item_id) config(): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<ReFungibleItemType<T::CrossAccountId>>;
+		//#endregion
 
-        //#region Index list
-        /// Collection id (controlled?2), tokens owner (controlled?2)
-        pub AddressTokens get(fn address_tokens): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => Vec<TokenId>;
-        //#endregion
+		//#region Index list
+		/// Collection id (controlled?2), tokens owner (controlled?2)
+		pub AddressTokens get(fn address_tokens): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) T::AccountId => Vec<TokenId>;
+		//#endregion
 
-        //#region Tokens transfer rate limit baskets
-        /// (Collection id (controlled?2), who created (real))
-        /// TODO: Off chain worker should remove from this map when collection gets removed
-        pub CreateItemBasket get(fn create_item_basket): map hasher(blake2_128_concat) (CollectionId, T::AccountId) => T::BlockNumber;
-        /// Collection id (controlled?2), token id (controlled?2)
-        pub NftTransferBasket get(fn nft_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => T::BlockNumber;
-        /// Collection id (controlled?2), owning user (real)
-        pub FungibleTransferBasket get(fn fungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => T::BlockNumber;
-        /// Collection id (controlled?2), token id (controlled?2)
-        pub ReFungibleTransferBasket get(fn refungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => T::BlockNumber;
-        //#endregion
+		//#region Tokens transfer rate limit baskets
+		/// (Collection id (controlled?2), who created (real))
+		/// TODO: Off chain worker should remove from this map when collection gets removed
+		pub CreateItemBasket get(fn create_item_basket): map hasher(blake2_128_concat) (CollectionId, T::AccountId) => T::BlockNumber;
+		/// Collection id (controlled?2), token id (controlled?2)
+		pub NftTransferBasket get(fn nft_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => T::BlockNumber;
+		/// Collection id (controlled?2), owning user (real)
+		pub FungibleTransferBasket get(fn fungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(twox_64_concat) T::AccountId => T::BlockNumber;
+		/// Collection id (controlled?2), token id (controlled?2)
+		pub ReFungibleTransferBasket get(fn refungible_transfer_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => T::BlockNumber;
+		//#endregion
 
-        /// Variable metadata sponsoring
-        /// Collection id (controlled?2), token id (controlled?2)
-        pub VariableMetaDataBasket get(fn variable_meta_data_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber> = None;
-    }
-    add_extra_genesis {
-        build(|config: &GenesisConfig<T>| {
-            // Modification of storage
-            for (_num, _c) in &config.collection_id {
-                <Module<T>>::init_collection(_c);
-            }
+		/// Variable metadata sponsoring
+		/// Collection id (controlled?2), token id (controlled?2)
+		pub VariableMetaDataBasket get(fn variable_meta_data_basket): double_map hasher(blake2_128_concat) CollectionId, hasher(blake2_128_concat) TokenId => Option<T::BlockNumber> = None;
+	}
+	add_extra_genesis {
+		build(|config: &GenesisConfig<T>| {
+			// Modification of storage
+			for (_num, _c) in &config.collection_id {
+				<Module<T>>::init_collection(_c);
+			}
 
-            for (_num, _c, _i) in &config.nft_item_id {
-                <Module<T>>::init_nft_token(*_c, _i);
-            }
+			for (_num, _c, _i) in &config.nft_item_id {
+				<Module<T>>::init_nft_token(*_c, _i);
+			}
 
-            for (collection_id, account_id, fungible_item) in &config.fungible_item_id {
-                <Module<T>>::init_fungible_token(*collection_id, &T::CrossAccountId::from_sub(account_id.clone()), fungible_item);
-            }
+			for (collection_id, account_id, fungible_item) in &config.fungible_item_id {
+				<Module<T>>::init_fungible_token(*collection_id, &T::CrossAccountId::from_sub(account_id.clone()), fungible_item);
+			}
 
-            for (_num, _c, _i) in &config.refungible_item_id {
-                <Module<T>>::init_refungible_token(*_c, _i);
-            }
-        })
-    }
+			for (_num, _c, _i) in &config.refungible_item_id {
+				<Module<T>>::init_refungible_token(*_c, _i);
+			}
+		})
+	}
 }
 
 decl_event!(
-    pub enum Event<T>
-    where
-        AccountId = <T as frame_system::Config>::AccountId,
-        CrossAccountId = <T as Config>::CrossAccountId,
-    {
-        /// New collection was created
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id: Globally unique identifier of newly created collection.
-        /// 
-        /// * mode: [CollectionMode] converted into u8.
-        /// 
-        /// * account_id: Collection owner.
-        CollectionCreated(CollectionId, u8, AccountId),
+	pub enum Event<T>
+	where
+		AccountId = <T as frame_system::Config>::AccountId,
+		CrossAccountId = <T as Config>::CrossAccountId,
+	{
+		/// New collection was created
+		///
+		/// # Arguments
+		///
+		/// * collection_id: Globally unique identifier of newly created collection.
+		///
+		/// * mode: [CollectionMode] converted into u8.
+		///
+		/// * account_id: Collection owner.
+		CollectionCreated(CollectionId, u8, AccountId),
 
-        /// New item was created.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id: Id of the collection where item was created.
-        /// 
-        /// * item_id: Id of an item. Unique within the collection.
-        ///
-        /// * recipient: Owner of newly created item 
-        ItemCreated(CollectionId, TokenId, CrossAccountId),
+		/// New item was created.
+		///
+		/// # Arguments
+		///
+		/// * collection_id: Id of the collection where item was created.
+		///
+		/// * item_id: Id of an item. Unique within the collection.
+		///
+		/// * recipient: Owner of newly created item
+		ItemCreated(CollectionId, TokenId, CrossAccountId),
 
-        /// Collection item was burned.
-        /// 
-        /// # Arguments
-        /// 
-        /// collection_id.
-        /// 
-        /// item_id: Identifier of burned NFT.
-        ItemDestroyed(CollectionId, TokenId),
+		/// Collection item was burned.
+		///
+		/// # Arguments
+		///
+		/// collection_id.
+		///
+		/// item_id: Identifier of burned NFT.
+		ItemDestroyed(CollectionId, TokenId),
 
-        /// Item was transferred
-        ///
-        /// * collection_id: Id of collection to which item is belong
-        ///
-        /// * item_id: Id of an item
-        ///
-        /// * sender: Original owner of item
-        ///
-        /// * recipient: New owner of item
-        ///
-        /// * amount: Always 1 for NFT
-        Transfer(CollectionId, TokenId, CrossAccountId, CrossAccountId, u128),
+		/// Item was transferred
+		///
+		/// * collection_id: Id of collection to which item is belong
+		///
+		/// * item_id: Id of an item
+		///
+		/// * sender: Original owner of item
+		///
+		/// * recipient: New owner of item
+		///
+		/// * amount: Always 1 for NFT
+		Transfer(CollectionId, TokenId, CrossAccountId, CrossAccountId, u128),
 
-        /// * collection_id
-        ///
-        /// * item_id
-        ///
-        /// * sender
-        ///
-        /// * spender
-        ///
-        /// * amount
-        Approved(CollectionId, TokenId, CrossAccountId, CrossAccountId, u128),
-    }
+		/// * collection_id
+		///
+		/// * item_id
+		///
+		/// * sender
+		///
+		/// * spender
+		///
+		/// * amount
+		Approved(CollectionId, TokenId, CrossAccountId, CrossAccountId, u128),
+	}
 );
 
 decl_module! {
-    pub struct Module<T: Config> for enum Call 
-    where 
-        origin: T::Origin
-    {
-        fn deposit_event() = default;
-        type Error = Error<T>;
+	pub struct Module<T: Config> for enum Call
+	where
+		origin: T::Origin
+	{
+		fn deposit_event() = default;
+		type Error = Error<T>;
 
-        fn on_initialize(_now: T::BlockNumber) -> Weight {
-            0
-        }
+		fn on_initialize(_now: T::BlockNumber) -> Weight {
+			0
+		}
 
-        /// This method creates a Collection of NFTs. Each Token may have multiple properties encoded as an array of bytes of certain length. The initial owner and admin of the collection are set to the address that signed the transaction. Both addresses can be changed later.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Anyone.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_name: UTF-16 string with collection name (limit 64 characters), will be stored as zero-terminated.
-        /// 
-        /// * collection_description: UTF-16 string with collection description (limit 256 characters), will be stored as zero-terminated.
-        /// 
-        /// * token_prefix: UTF-8 string with token prefix.
-        /// 
-        /// * mode: [CollectionMode] collection type and type dependent data.
-        // returns collection ID
-        #[weight = <T as Config>::WeightInfo::create_collection()]
-        #[transactional]
-        pub fn create_collection(origin,
-                                 collection_name: Vec<u16>,
-                                 collection_description: Vec<u16>,
-                                 token_prefix: Vec<u8>,
-                                 mode: CollectionMode) -> DispatchResult {
+		/// This method creates a Collection of NFTs. Each Token may have multiple properties encoded as an array of bytes of certain length. The initial owner and admin of the collection are set to the address that signed the transaction. Both addresses can be changed later.
+		///
+		/// # Permissions
+		///
+		/// * Anyone.
+		///
+		/// # Arguments
+		///
+		/// * collection_name: UTF-16 string with collection name (limit 64 characters), will be stored as zero-terminated.
+		///
+		/// * collection_description: UTF-16 string with collection description (limit 256 characters), will be stored as zero-terminated.
+		///
+		/// * token_prefix: UTF-8 string with token prefix.
+		///
+		/// * mode: [CollectionMode] collection type and type dependent data.
+		// returns collection ID
+		#[weight = <T as Config>::WeightInfo::create_collection()]
+		#[transactional]
+		pub fn create_collection(origin,
+								 collection_name: Vec<u16>,
+								 collection_description: Vec<u16>,
+								 token_prefix: Vec<u8>,
+								 mode: CollectionMode) -> DispatchResult {
 
-            // Anyone can create a collection
-            let who = ensure_signed(origin)?;
+			// Anyone can create a collection
+			let who = ensure_signed(origin)?;
 
-            // Take a (non-refundable) deposit of collection creation
-            let mut imbalance = <<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();
-            imbalance.subsume(<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(
-                &T::TreasuryAccountId::get(),
-                T::CollectionCreationPrice::get(),
-            ));
-            <T as Config>::Currency::settle(
-                &who,
-                imbalance,
-                WithdrawReasons::TRANSFER,
-                ExistenceRequirement::KeepAlive,
-            ).map_err(|_| Error::<T>::NoPermission)?;
+			// Take a (non-refundable) deposit of collection creation
+			let mut imbalance = <<<T as Config>::Currency as Currency<T::AccountId>>::PositiveImbalance>::zero();
+			imbalance.subsume(<<T as Config>::Currency as Currency<T::AccountId>>::deposit_creating(
+				&T::TreasuryAccountId::get(),
+				T::CollectionCreationPrice::get(),
+			));
+			<T as Config>::Currency::settle(
+				&who,
+				imbalance,
+				WithdrawReasons::TRANSFER,
+				ExistenceRequirement::KeepAlive,
+			).map_err(|_| Error::<T>::NoPermission)?;
 
-            let decimal_points = match mode {
-                CollectionMode::Fungible(points) => points,
-                _ => 0
-            };
+			let decimal_points = match mode {
+				CollectionMode::Fungible(points) => points,
+				_ => 0
+			};
 
-            let chain_limit = ChainLimit::get();
+			let chain_limit = ChainLimit::get();
 
-            let created_count = CreatedCollectionCount::get();
-            let destroyed_count = DestroyedCollectionCount::get();
+			let created_count = CreatedCollectionCount::get();
+			let destroyed_count = DestroyedCollectionCount::get();
 
-            // bound Total number of collections
-            ensure!(created_count - destroyed_count < chain_limit.collection_numbers_limit, Error::<T>::TotalCollectionsLimitExceeded);
+			// bound Total number of collections
+			ensure!(created_count - destroyed_count < chain_limit.collection_numbers_limit, Error::<T>::TotalCollectionsLimitExceeded);
 
-            // check params
-            ensure!(decimal_points <= MAX_DECIMAL_POINTS, Error::<T>::CollectionDecimalPointLimitExceeded);
-            ensure!(collection_name.len() <= 64, Error::<T>::CollectionNameLimitExceeded);
-            ensure!(collection_description.len() <= 256, Error::<T>::CollectionDescriptionLimitExceeded);
-            ensure!(token_prefix.len() <= 16, Error::<T>::CollectionTokenPrefixLimitExceeded);
+			// check params
+			ensure!(decimal_points <= MAX_DECIMAL_POINTS, Error::<T>::CollectionDecimalPointLimitExceeded);
+			ensure!(collection_name.len() <= 64, Error::<T>::CollectionNameLimitExceeded);
+			ensure!(collection_description.len() <= 256, Error::<T>::CollectionDescriptionLimitExceeded);
+			ensure!(token_prefix.len() <= 16, Error::<T>::CollectionTokenPrefixLimitExceeded);
 
-            // Generate next collection ID
-            let next_id = created_count
-                .checked_add(1)
-                .ok_or(Error::<T>::NumOverflow)?;
+			// Generate next collection ID
+			let next_id = created_count
+				.checked_add(1)
+				.ok_or(Error::<T>::NumOverflow)?;
 
-            CreatedCollectionCount::put(next_id);
+			CreatedCollectionCount::put(next_id);
 
-            let limits = CollectionLimits {
-                sponsored_data_size: chain_limit.custom_data_limit,
-                ..Default::default()
-            };
+			let limits = CollectionLimits {
+				sponsored_data_size: chain_limit.custom_data_limit,
+				..Default::default()
+			};
 
-            // Create new collection
-            let new_collection = Collection {
-                owner: who.clone(),
-                name: collection_name,
-                mode: mode.clone(),
-                mint_mode: false,
-                access: AccessMode::Normal,
-                description: collection_description,
-                decimal_points: decimal_points,
-                token_prefix: token_prefix,
-                offchain_schema: Vec::new(),
-                schema_version: SchemaVersion::ImageURL,
-                sponsorship: SponsorshipState::Disabled,
-                variable_on_chain_schema: Vec::new(),
-                const_on_chain_schema: Vec::new(),
-                limits,
-            };
+			// Create new collection
+			let new_collection = Collection {
+				owner: who.clone(),
+				name: collection_name,
+				mode: mode.clone(),
+				mint_mode: false,
+				access: AccessMode::Normal,
+				description: collection_description,
+				decimal_points,
+				token_prefix,
+				offchain_schema: Vec::new(),
+				schema_version: SchemaVersion::ImageURL,
+				sponsorship: SponsorshipState::Disabled,
+				variable_on_chain_schema: Vec::new(),
+				const_on_chain_schema: Vec::new(),
+				limits,
+			};
 
-            // Add new collection to map
-            <CollectionById<T>>::insert(next_id, new_collection);
+			// Add new collection to map
+			<CollectionById<T>>::insert(next_id, new_collection);
 
-            // call event
-            Self::deposit_event(RawEvent::CollectionCreated(next_id, mode.into(), who));
+			// call event
+			Self::deposit_event(RawEvent::CollectionCreated(next_id, mode.id(), who));
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// **DANGEROUS**: Destroys collection and all NFTs within this collection. Users irrecoverably lose their assets and may lose real money.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id: collection to destroy.
-        #[weight = <T as Config>::WeightInfo::destroy_collection()]
-        #[transactional]
-        pub fn destroy_collection(origin, collection_id: CollectionId) -> DispatchResult {
+		/// **DANGEROUS**: Destroys collection and all NFTs within this collection. Users irrecoverably lose their assets and may lose real money.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner.
+		///
+		/// # Arguments
+		///
+		/// * collection_id: collection to destroy.
+		#[weight = <T as Config>::WeightInfo::destroy_collection()]
+		#[transactional]
+		pub fn destroy_collection(origin, collection_id: CollectionId) -> DispatchResult {
 
-            let sender = ensure_signed(origin)?;
-            let collection = Self::get_collection(collection_id)?;
-            Self::check_owner_permissions(&collection, &sender)?;
-            if !collection.limits.owner_can_destroy {
-                fail!(Error::<T>::NoPermission);
-            }
+			let sender = ensure_signed(origin)?;
+			let collection = Self::get_collection(collection_id)?;
+			Self::check_owner_permissions(&collection, &sender)?;
+			if !collection.limits.owner_can_destroy {
+				fail!(Error::<T>::NoPermission);
+			}
 
-            <AddressTokens<T>>::remove_prefix(collection_id);
-            <Allowances<T>>::remove_prefix(collection_id);
-            <Balance<T>>::remove_prefix(collection_id);
-            <ItemListIndex>::remove(collection_id);
-            <AdminList<T>>::remove(collection_id);
-            <CollectionById<T>>::remove(collection_id);
-            <WhiteList<T>>::remove_prefix(collection_id);
+			<AddressTokens<T>>::remove_prefix(collection_id);
+			<Allowances<T>>::remove_prefix(collection_id);
+			<Balance<T>>::remove_prefix(collection_id);
+			<ItemListIndex>::remove(collection_id);
+			<AdminList<T>>::remove(collection_id);
+			<CollectionById<T>>::remove(collection_id);
+			<WhiteList<T>>::remove_prefix(collection_id);
 
-            <NftItemList<T>>::remove_prefix(collection_id);
-            <FungibleItemList<T>>::remove_prefix(collection_id);
-            <ReFungibleItemList<T>>::remove_prefix(collection_id);
+			<NftItemList<T>>::remove_prefix(collection_id);
+			<FungibleItemList<T>>::remove_prefix(collection_id);
+			<ReFungibleItemList<T>>::remove_prefix(collection_id);
 
-            <NftTransferBasket<T>>::remove_prefix(collection_id);
-            <FungibleTransferBasket<T>>::remove_prefix(collection_id);
-            <ReFungibleTransferBasket<T>>::remove_prefix(collection_id);
+			<NftTransferBasket<T>>::remove_prefix(collection_id);
+			<FungibleTransferBasket<T>>::remove_prefix(collection_id);
+			<ReFungibleTransferBasket<T>>::remove_prefix(collection_id);
 
-            <VariableMetaDataBasket<T>>::remove_prefix(collection_id);
+			<VariableMetaDataBasket<T>>::remove_prefix(collection_id);
 
-            DestroyedCollectionCount::put(DestroyedCollectionCount::get()
-                .checked_add(1)
-                .ok_or(Error::<T>::NumOverflow)?);
+			DestroyedCollectionCount::put(DestroyedCollectionCount::get()
+				.checked_add(1)
+				.ok_or(Error::<T>::NumOverflow)?);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// Add an address to white list.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * address.
-        #[weight = <T as Config>::WeightInfo::add_to_white_list()]
-        #[transactional]
-        pub fn add_to_white_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{
+		/// Add an address to white list.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * address.
+		#[weight = <T as Config>::WeightInfo::add_to_white_list()]
+		#[transactional]
+		pub fn add_to_white_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{
 
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
 
-            Self::toggle_white_list_internal(
-                &sender,
-                &collection,
-                &address,
-                true,
-            )?;
+			Self::toggle_white_list_internal(
+				&sender,
+				&collection,
+				&address,
+				true,
+			)?;
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// Remove an address from white list.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * address.
-        #[weight = <T as Config>::WeightInfo::remove_from_white_list()]
-        #[transactional]
-        pub fn remove_from_white_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{
+		/// Remove an address from white list.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * address.
+		#[weight = <T as Config>::WeightInfo::remove_from_white_list()]
+		#[transactional]
+		pub fn remove_from_white_list(origin, collection_id: CollectionId, address: T::CrossAccountId) -> DispatchResult{
 
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
 
-            Self::toggle_white_list_internal(
-                &sender,
-                &collection,
-                &address,
-                false,
-            )?;
+			Self::toggle_white_list_internal(
+				&sender,
+				&collection,
+				&address,
+				false,
+			)?;
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// Toggle between normal and white list access for the methods with access for `Anyone`.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * mode: [AccessMode]
-        #[weight = <T as Config>::WeightInfo::set_public_access_mode()]
-        #[transactional]
-        pub fn set_public_access_mode(origin, collection_id: CollectionId, mode: AccessMode) -> DispatchResult
-        {
-            let sender = ensure_signed(origin)?;
+		/// Toggle between normal and white list access for the methods with access for `Anyone`.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner.
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * mode: [AccessMode]
+		#[weight = <T as Config>::WeightInfo::set_public_access_mode()]
+		#[transactional]
+		pub fn set_public_access_mode(origin, collection_id: CollectionId, mode: AccessMode) -> DispatchResult
+		{
+			let sender = ensure_signed(origin)?;
 
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_permissions(&target_collection, &sender)?;
-            target_collection.access = mode;
-            Self::save_collection(target_collection);
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_permissions(&target_collection, &sender)?;
+			target_collection.access = mode;
+			Self::save_collection(target_collection);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// Allows Anyone to create tokens if:
-        /// * White List is enabled, and
-        /// * Address is added to white list, and
-        /// * This method was called with True parameter
-        /// 
-        /// # Permissions
-        /// * Collection Owner
-        ///
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * mint_permission: Boolean parameter. If True, allows minting to Anyone with conditions above.
-        #[weight = <T as Config>::WeightInfo::set_mint_permission()]
-        #[transactional]
-        pub fn set_mint_permission(origin, collection_id: CollectionId, mint_permission: bool) -> DispatchResult
-        {
-            let sender = ensure_signed(origin)?;
+		/// Allows Anyone to create tokens if:
+		/// * White List is enabled, and
+		/// * Address is added to white list, and
+		/// * This method was called with True parameter
+		///
+		/// # Permissions
+		/// * Collection Owner
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * mint_permission: Boolean parameter. If True, allows minting to Anyone with conditions above.
+		#[weight = <T as Config>::WeightInfo::set_mint_permission()]
+		#[transactional]
+		pub fn set_mint_permission(origin, collection_id: CollectionId, mint_permission: bool) -> DispatchResult
+		{
+			let sender = ensure_signed(origin)?;
 
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_permissions(&target_collection, &sender)?;
-            target_collection.mint_mode = mint_permission;
-            Self::save_collection(target_collection);
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_permissions(&target_collection, &sender)?;
+			target_collection.mint_mode = mint_permission;
+			Self::save_collection(target_collection);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// Change the owner of the collection.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * new_owner.
-        #[weight = <T as Config>::WeightInfo::change_collection_owner()]
-        #[transactional]
-        pub fn change_collection_owner(origin, collection_id: CollectionId, new_owner: T::AccountId) -> DispatchResult {
+		/// Change the owner of the collection.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner.
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * new_owner.
+		#[weight = <T as Config>::WeightInfo::change_collection_owner()]
+		#[transactional]
+		pub fn change_collection_owner(origin, collection_id: CollectionId, new_owner: T::AccountId) -> DispatchResult {
 
-            let sender = ensure_signed(origin)?;
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_permissions(&target_collection, &sender)?;
-            target_collection.owner = new_owner;
-            Self::save_collection(target_collection);
+			let sender = ensure_signed(origin)?;
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_permissions(&target_collection, &sender)?;
+			target_collection.owner = new_owner;
+			Self::save_collection(target_collection);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// Adds an admin of the Collection.
-        /// NFT Collection can be controlled by multiple admin addresses (some which can also be servers, for example). Admins can issue and burn NFTs, as well as add and remove other admins, but cannot change NFT or Collection ownership. 
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner.
-        /// * Collection Admin.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id: ID of the Collection to add admin for.
-        /// 
-        /// * new_admin_id: Address of new admin to add.
-        #[weight = <T as Config>::WeightInfo::add_collection_admin()]
-        #[transactional]
-        pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::CrossAccountId) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
-            Self::check_owner_or_admin_permissions(&collection, &sender)?;
-            let mut admin_arr = <AdminList<T>>::get(collection_id);
+		/// Adds an admin of the Collection.
+		/// NFT Collection can be controlled by multiple admin addresses (some which can also be servers, for example). Admins can issue and burn NFTs, as well as add and remove other admins, but cannot change NFT or Collection ownership.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner.
+		/// * Collection Admin.
+		///
+		/// # Arguments
+		///
+		/// * collection_id: ID of the Collection to add admin for.
+		///
+		/// * new_admin_id: Address of new admin to add.
+		#[weight = <T as Config>::WeightInfo::add_collection_admin()]
+		#[transactional]
+		pub fn add_collection_admin(origin, collection_id: CollectionId, new_admin_id: T::CrossAccountId) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
+			Self::check_owner_or_admin_permissions(&collection, &sender)?;
+			let mut admin_arr = <AdminList<T>>::get(collection_id);
 
-            match admin_arr.binary_search(&new_admin_id) {
-                Ok(_) => {},
-                Err(idx) => {
-                    let limits = ChainLimit::get();
-                    ensure!(admin_arr.len() < limits.collections_admins_limit as usize, Error::<T>::CollectionAdminsLimitExceeded);
-                    admin_arr.insert(idx, new_admin_id);
-                    <AdminList<T>>::insert(collection_id, admin_arr);
-                }
-            }
-            Ok(())
-        }
+			match admin_arr.binary_search(&new_admin_id) {
+				Ok(_) => {},
+				Err(idx) => {
+					let limits = ChainLimit::get();
+					ensure!(admin_arr.len() < limits.collections_admins_limit as usize, Error::<T>::CollectionAdminsLimitExceeded);
+					admin_arr.insert(idx, new_admin_id);
+					<AdminList<T>>::insert(collection_id, admin_arr);
+				}
+			}
+			Ok(())
+		}
 
-        /// Remove admin address of the Collection. An admin address can remove itself. List of admins may become empty, in which case only Collection Owner will be able to add an Admin.
-        ///
-        /// # Permissions
-        /// 
-        /// * Collection Owner.
-        /// * Collection Admin.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id: ID of the Collection to remove admin for.
-        /// 
-        /// * account_id: Address of admin to remove.
-        #[weight = <T as Config>::WeightInfo::remove_collection_admin()]
-        #[transactional]
-        pub fn remove_collection_admin(origin, collection_id: CollectionId, account_id: T::CrossAccountId) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
-            Self::check_owner_or_admin_permissions(&collection, &sender)?;
-            let mut admin_arr = <AdminList<T>>::get(collection_id);
+		/// Remove admin address of the Collection. An admin address can remove itself. List of admins may become empty, in which case only Collection Owner will be able to add an Admin.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner.
+		/// * Collection Admin.
+		///
+		/// # Arguments
+		///
+		/// * collection_id: ID of the Collection to remove admin for.
+		///
+		/// * account_id: Address of admin to remove.
+		#[weight = <T as Config>::WeightInfo::remove_collection_admin()]
+		#[transactional]
+		pub fn remove_collection_admin(origin, collection_id: CollectionId, account_id: T::CrossAccountId) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
+			Self::check_owner_or_admin_permissions(&collection, &sender)?;
+			let mut admin_arr = <AdminList<T>>::get(collection_id);
 
-            match admin_arr.binary_search(&account_id) {
-                Ok(idx) => {
-                    admin_arr.remove(idx);
-                    <AdminList<T>>::insert(collection_id, admin_arr);
-                },
-                Err(_) => {}
-            }
-            Ok(())
-        }
+			if let Ok(idx) = admin_arr.binary_search(&account_id) {
+				admin_arr.remove(idx);
+				<AdminList<T>>::insert(collection_id, admin_arr);
+			}
+			Ok(())
+		}
 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * new_sponsor.
-        #[weight = <T as Config>::WeightInfo::set_collection_sponsor()]
-        #[transactional]
-        pub fn set_collection_sponsor(origin, collection_id: CollectionId, new_sponsor: T::AccountId) -> DispatchResult {
-            let sender = ensure_signed(origin)?;
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_permissions(&target_collection, &sender)?;
+		/// # Permissions
+		///
+		/// * Collection Owner
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * new_sponsor.
+		#[weight = <T as Config>::WeightInfo::set_collection_sponsor()]
+		#[transactional]
+		pub fn set_collection_sponsor(origin, collection_id: CollectionId, new_sponsor: T::AccountId) -> DispatchResult {
+			let sender = ensure_signed(origin)?;
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_permissions(&target_collection, &sender)?;
 
-            target_collection.sponsorship = SponsorshipState::Unconfirmed(new_sponsor);
-            Self::save_collection(target_collection);
+			target_collection.sponsorship = SponsorshipState::Unconfirmed(new_sponsor);
+			Self::save_collection(target_collection);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// # Permissions
-        /// 
-        /// * Sponsor.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        #[weight = <T as Config>::WeightInfo::confirm_sponsorship()]
-        #[transactional]
-        pub fn confirm_sponsorship(origin, collection_id: CollectionId) -> DispatchResult {
-            let sender = ensure_signed(origin)?;
+		/// # Permissions
+		///
+		/// * Sponsor.
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		#[weight = <T as Config>::WeightInfo::confirm_sponsorship()]
+		#[transactional]
+		pub fn confirm_sponsorship(origin, collection_id: CollectionId) -> DispatchResult {
+			let sender = ensure_signed(origin)?;
 
-            let mut target_collection = Self::get_collection(collection_id)?;
-            ensure!(
-                target_collection.sponsorship.pending_sponsor() == Some(&sender),
-                Error::<T>::ConfirmUnsetSponsorFail
-            );
+			let mut target_collection = Self::get_collection(collection_id)?;
+			ensure!(
+				target_collection.sponsorship.pending_sponsor() == Some(&sender),
+				Error::<T>::ConfirmUnsetSponsorFail
+			);
 
-            target_collection.sponsorship = SponsorshipState::Confirmed(sender);
-            Self::save_collection(target_collection);
+			target_collection.sponsorship = SponsorshipState::Confirmed(sender);
+			Self::save_collection(target_collection);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// Switch back to pay-per-own-transaction model.
-        ///
-        /// # Permissions
-        ///
-        /// * Collection owner.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        #[weight = <T as Config>::WeightInfo::remove_collection_sponsor()]
-        #[transactional]
-        pub fn remove_collection_sponsor(origin, collection_id: CollectionId) -> DispatchResult {
-            let sender = ensure_signed(origin)?;
+		/// Switch back to pay-per-own-transaction model.
+		///
+		/// # Permissions
+		///
+		/// * Collection owner.
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		#[weight = <T as Config>::WeightInfo::remove_collection_sponsor()]
+		#[transactional]
+		pub fn remove_collection_sponsor(origin, collection_id: CollectionId) -> DispatchResult {
+			let sender = ensure_signed(origin)?;
 
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_permissions(&target_collection, &sender)?;
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_permissions(&target_collection, &sender)?;
 
-            target_collection.sponsorship = SponsorshipState::Disabled;
-            Self::save_collection(target_collection);
+			target_collection.sponsorship = SponsorshipState::Disabled;
+			Self::save_collection(target_collection);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// This method creates a concrete instance of NFT Collection created with CreateCollection method.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner.
-        /// * Collection Admin.
-        /// * Anyone if
-        ///     * White List is enabled, and
-        ///     * Address is added to white list, and
-        ///     * MintPermission is enabled (see SetMintPermission method)
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id: ID of the collection.
-        /// 
-        /// * owner: Address, initial owner of the NFT.
-        ///
-        /// * data: Token data to store on chain.
-        // #[weight =
-        // (130_000_000 as Weight)
-        // .saturating_add((2135 as Weight).saturating_mul((properties.len() as u64) as Weight))
-        // .saturating_add(RocksDbWeight::get().reads(10 as Weight))
-        // .saturating_add(RocksDbWeight::get().writes(8 as Weight))]
+		/// This method creates a concrete instance of NFT Collection created with CreateCollection method.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner.
+		/// * Collection Admin.
+		/// * Anyone if
+		///     * White List is enabled, and
+		///     * Address is added to white list, and
+		///     * MintPermission is enabled (see SetMintPermission method)
+		///
+		/// # Arguments
+		///
+		/// * collection_id: ID of the collection.
+		///
+		/// * owner: Address, initial owner of the NFT.
+		///
+		/// * data: Token data to store on chain.
+		// #[weight =
+		// (130_000_000 as Weight)
+		// .saturating_add((2135 as Weight).saturating_mul((properties.len() as u64) as Weight))
+		// .saturating_add(RocksDbWeight::get().reads(10 as Weight))
+		// .saturating_add(RocksDbWeight::get().writes(8 as Weight))]
 
-        #[weight = <T as Config>::WeightInfo::create_item(data.len())]
-        #[transactional]
-        pub fn create_item(origin, collection_id: CollectionId, owner: T::CrossAccountId, data: CreateItemData) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
+		#[weight = <T as Config>::WeightInfo::create_item(data.data_size())]
+		#[transactional]
+		pub fn create_item(origin, collection_id: CollectionId, owner: T::CrossAccountId, data: CreateItemData) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
 
-            Self::create_item_internal(&sender, &collection, &owner, data)?;
+			Self::create_item_internal(&sender, &collection, &owner, data)?;
 
-            Self::submit_logs(collection)?;
-            Ok(())
-        }
+			Self::submit_logs(collection)?;
+			Ok(())
+		}
 
-        /// This method creates multiple items in a collection created with CreateCollection method.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner.
-        /// * Collection Admin.
-        /// * Anyone if
-        ///     * White List is enabled, and
-        ///     * Address is added to white list, and
-        ///     * MintPermission is enabled (see SetMintPermission method)
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id: ID of the collection.
-        /// 
-        /// * itemsData: Array items properties. Each property is an array of bytes itself, see [create_item].
-        /// 
-        /// * owner: Address, initial owner of the NFT.
-        #[weight = <T as Config>::WeightInfo::create_item(items_data.into_iter()
-                               .map(|data| { data.len() })
-                               .sum())]
-        #[transactional]
-        pub fn create_multiple_items(origin, collection_id: CollectionId, owner: T::CrossAccountId, items_data: Vec<CreateItemData>) -> DispatchResult {
+		/// This method creates multiple items in a collection created with CreateCollection method.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner.
+		/// * Collection Admin.
+		/// * Anyone if
+		///     * White List is enabled, and
+		///     * Address is added to white list, and
+		///     * MintPermission is enabled (see SetMintPermission method)
+		///
+		/// # Arguments
+		///
+		/// * collection_id: ID of the collection.
+		///
+		/// * itemsData: Array items properties. Each property is an array of bytes itself, see [create_item].
+		///
+		/// * owner: Address, initial owner of the NFT.
+		#[weight = <T as Config>::WeightInfo::create_item(items_data.iter()
+							   .map(|data| { data.data_size() })
+							   .sum())]
+		#[transactional]
+		pub fn create_multiple_items(origin, collection_id: CollectionId, owner: T::CrossAccountId, items_data: Vec<CreateItemData>) -> DispatchResult {
 
-            ensure!(items_data.len() > 0, Error::<T>::EmptyArgument);
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
+			ensure!(!items_data.is_empty(), Error::<T>::EmptyArgument);
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
 
-            Self::create_multiple_items_internal(&sender, &collection, &owner, items_data)?;
+			Self::create_multiple_items_internal(&sender, &collection, &owner, items_data)?;
 
-            Self::submit_logs(collection)?;
-            Ok(())
-        }
+			Self::submit_logs(collection)?;
+			Ok(())
+		}
 
-        /// Destroys a concrete instance of NFT.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner.
-        /// * Collection Admin.
-        /// * Current NFT Owner.
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id: ID of the collection.
-        /// 
-        /// * item_id: ID of NFT to burn.
-        #[weight = <T as Config>::WeightInfo::burn_item()]
-        #[transactional]
-        pub fn burn_item(origin, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {
+		/// Destroys a concrete instance of NFT.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner.
+		/// * Collection Admin.
+		/// * Current NFT Owner.
+		///
+		/// # Arguments
+		///
+		/// * collection_id: ID of the collection.
+		///
+		/// * item_id: ID of NFT to burn.
+		#[weight = <T as Config>::WeightInfo::burn_item()]
+		#[transactional]
+		pub fn burn_item(origin, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {
 
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let target_collection = Self::get_collection(collection_id)?;
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let target_collection = Self::get_collection(collection_id)?;
 
-            Self::burn_item_internal(&sender, &target_collection, item_id, value)?;
+			Self::burn_item_internal(&sender, &target_collection, item_id, value)?;
 
-            Self::submit_logs(target_collection)?;
-            Ok(())
-        }
+			Self::submit_logs(target_collection)?;
+			Ok(())
+		}
 
-        /// Change ownership of the token.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// * Current NFT owner
-        ///
-        /// # Arguments
-        /// 
-        /// * recipient: Address of token recipient.
-        /// 
-        /// * collection_id.
-        /// 
-        /// * item_id: ID of the item
-        ///     * Non-Fungible Mode: Required.
-        ///     * Fungible Mode: Ignored.
-        ///     * Re-Fungible Mode: Required.
-        /// 
-        /// * value: Amount to transfer.
-        ///     * Non-Fungible Mode: Ignored
-        ///     * Fungible Mode: Must specify transferred amount
-        ///     * Re-Fungible Mode: Must specify transferred portion (between 0 and 1)
-        #[weight = <T as Config>::WeightInfo::transfer()]
-        #[transactional]
-        pub fn transfer(origin, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
+		/// Change ownership of the token.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		/// * Current NFT owner
+		///
+		/// # Arguments
+		///
+		/// * recipient: Address of token recipient.
+		///
+		/// * collection_id.
+		///
+		/// * item_id: ID of the item
+		///     * Non-Fungible Mode: Required.
+		///     * Fungible Mode: Ignored.
+		///     * Re-Fungible Mode: Required.
+		///
+		/// * value: Amount to transfer.
+		///     * Non-Fungible Mode: Ignored
+		///     * Fungible Mode: Must specify transferred amount
+		///     * Re-Fungible Mode: Must specify transferred portion (between 0 and 1)
+		#[weight = <T as Config>::WeightInfo::transfer()]
+		#[transactional]
+		pub fn transfer(origin, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
 
-            Self::transfer_internal(&sender, &recipient, &collection, item_id, value)?;
+			Self::transfer_internal(&sender, &recipient, &collection, item_id, value)?;
 
-            Self::submit_logs(collection)?;
-            Ok(())
-        }
+			Self::submit_logs(collection)?;
+			Ok(())
+		}
 
-        /// Set, change, or remove approved address to transfer the ownership of the NFT.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// * Current NFT owner
-        /// 
-        /// # Arguments
-        /// 
-        /// * approved: Address that is approved to transfer this NFT or zero (if needed to remove approval).
-        /// 
-        /// * collection_id.
-        /// 
-        /// * item_id: ID of the item.
-        #[weight = <T as Config>::WeightInfo::approve()]
-        #[transactional]
-        pub fn approve(origin, spender: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, amount: u128) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
+		/// Set, change, or remove approved address to transfer the ownership of the NFT.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		/// * Current NFT owner
+		///
+		/// # Arguments
+		///
+		/// * approved: Address that is approved to transfer this NFT or zero (if needed to remove approval).
+		///
+		/// * collection_id.
+		///
+		/// * item_id: ID of the item.
+		#[weight = <T as Config>::WeightInfo::approve()]
+		#[transactional]
+		pub fn approve(origin, spender: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, amount: u128) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
 
-            Self::approve_internal(&sender, &spender, &collection, item_id, amount)?;
+			Self::approve_internal(&sender, &spender, &collection, item_id, amount)?;
 
-            Self::submit_logs(collection)?;
-            Ok(())
-        }
-        
-        /// Change ownership of a NFT on behalf of the owner. See Approve method for additional information. After this method executes, the approval is removed so that the approved address will not be able to transfer this NFT again from this owner.
-        /// 
-        /// # Permissions
-        /// * Collection Owner
-        /// * Collection Admin
-        /// * Current NFT owner
-        /// * Address approved by current NFT owner
-        /// 
-        /// # Arguments
-        /// 
-        /// * from: Address that owns token.
-        /// 
-        /// * recipient: Address of token recipient.
-        /// 
-        /// * collection_id.
-        /// 
-        /// * item_id: ID of the item.
-        /// 
-        /// * value: Amount to transfer.
-        #[weight = <T as Config>::WeightInfo::transfer_from()]
-        #[transactional]
-        pub fn transfer_from(origin, from: T::CrossAccountId, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128 ) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let collection = Self::get_collection(collection_id)?;
+			Self::submit_logs(collection)?;
+			Ok(())
+		}
 
-            Self::transfer_from_internal(&sender, &from, &recipient, &collection, item_id, value)?;
+		/// Change ownership of a NFT on behalf of the owner. See Approve method for additional information. After this method executes, the approval is removed so that the approved address will not be able to transfer this NFT again from this owner.
+		///
+		/// # Permissions
+		/// * Collection Owner
+		/// * Collection Admin
+		/// * Current NFT owner
+		/// * Address approved by current NFT owner
+		///
+		/// # Arguments
+		///
+		/// * from: Address that owns token.
+		///
+		/// * recipient: Address of token recipient.
+		///
+		/// * collection_id.
+		///
+		/// * item_id: ID of the item.
+		///
+		/// * value: Amount to transfer.
+		#[weight = <T as Config>::WeightInfo::transfer_from()]
+		#[transactional]
+		pub fn transfer_from(origin, from: T::CrossAccountId, recipient: T::CrossAccountId, collection_id: CollectionId, item_id: TokenId, value: u128 ) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let collection = Self::get_collection(collection_id)?;
 
-            Self::submit_logs(collection)?;
-            Ok(())
-        }
-        // #[weight = 0]
-        //     // let no_perm_mes = "You do not have permissions to modify this collection";
-        //     // ensure!(<ApprovedList<T>>::contains_key((collection_id, item_id)), no_perm_mes);
-        //     // let list_itm = <ApprovedList<T>>::get((collection_id, item_id));
-        //     // ensure!(list_itm.contains(&new_owner.clone()), no_perm_mes);
+			Self::transfer_from_internal(&sender, &from, &recipient, &collection, item_id, value)?;
 
-        //     // // on_nft_received  call
+			Self::submit_logs(collection)?;
+			Ok(())
+		}
+		// #[weight = 0]
+		//     // let no_perm_mes = "You do not have permissions to modify this collection";
+		//     // ensure!(<ApprovedList<T>>::contains_key((collection_id, item_id)), no_perm_mes);
+		//     // let list_itm = <ApprovedList<T>>::get((collection_id, item_id));
+		//     // ensure!(list_itm.contains(&new_owner.clone()), no_perm_mes);
 
-        //     // Self::transfer(origin, collection_id, item_id, new_owner)?;
+		//     // // on_nft_received  call
 
-        //     Ok(())
-        // }
+		//     // Self::transfer(origin, collection_id, item_id, new_owner)?;
 
-        /// Set off-chain data schema.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * schema: String representing the offchain data schema.
-        #[weight = <T as Config>::WeightInfo::set_variable_meta_data()]
-        #[transactional]
-        pub fn set_variable_meta_data (
-            origin,
-            collection_id: CollectionId,
-            item_id: TokenId,
-            data: Vec<u8>
-        ) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            
-            let collection = Self::get_collection(collection_id)?;
+		//     Ok(())
+		// }
 
-            Self::set_variable_meta_data_internal(&sender, &collection, item_id, data)?;
+		/// Set off-chain data schema.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * schema: String representing the offchain data schema.
+		#[weight = <T as Config>::WeightInfo::set_variable_meta_data()]
+		#[transactional]
+		pub fn set_variable_meta_data (
+			origin,
+			collection_id: CollectionId,
+			item_id: TokenId,
+			data: Vec<u8>
+		) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
 
-            Ok(())
-        }
- 
-        /// Set schema standard
-        /// ImageURL
-        /// Unique
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * schema: SchemaVersion: enum
-        #[weight = <T as Config>::WeightInfo::set_schema_version()]
-        #[transactional]
-        pub fn set_schema_version(
-            origin,
-            collection_id: CollectionId,
-            version: SchemaVersion
-        ) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_or_admin_permissions(&target_collection, &sender)?;
-            target_collection.schema_version = version;
-            Self::save_collection(target_collection);
+			let collection = Self::get_collection(collection_id)?;
 
-            Ok(())
-        }
+			Self::set_variable_meta_data_internal(&sender, &collection, item_id, data)?;
 
-        /// Set off-chain data schema.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * schema: String representing the offchain data schema.
-        #[weight = <T as Config>::WeightInfo::set_offchain_schema()]
-        #[transactional]
-        pub fn set_offchain_schema(
-            origin,
-            collection_id: CollectionId,
-            schema: Vec<u8>
-        ) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_or_admin_permissions(&target_collection, &sender)?;
+			Ok(())
+		}
 
-            // check schema limit
-            ensure!(schema.len() as u32 <= ChainLimit::get().offchain_schema_limit, "");
+		/// Set schema standard
+		/// ImageURL
+		/// Unique
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * schema: SchemaVersion: enum
+		#[weight = <T as Config>::WeightInfo::set_schema_version()]
+		#[transactional]
+		pub fn set_schema_version(
+			origin,
+			collection_id: CollectionId,
+			version: SchemaVersion
+		) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_or_admin_permissions(&target_collection, &sender)?;
+			target_collection.schema_version = version;
+			Self::save_collection(target_collection);
 
-            target_collection.offchain_schema = schema;
-            Self::save_collection(target_collection);
+			Ok(())
+		}
 
-            Ok(())
-        }
+		/// Set off-chain data schema.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * schema: String representing the offchain data schema.
+		#[weight = <T as Config>::WeightInfo::set_offchain_schema()]
+		#[transactional]
+		pub fn set_offchain_schema(
+			origin,
+			collection_id: CollectionId,
+			schema: Vec<u8>
+		) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_or_admin_permissions(&target_collection, &sender)?;
+
+			// check schema limit
+			ensure!(schema.len() as u32 <= ChainLimit::get().offchain_schema_limit, "");
 
-        /// Set const on-chain data schema.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * schema: String representing the const on-chain data schema.
-        #[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]
-        #[transactional]
-        pub fn set_const_on_chain_schema (
-            origin,
-            collection_id: CollectionId,
-            schema: Vec<u8>
-        ) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_or_admin_permissions(&target_collection, &sender)?;
+			target_collection.offchain_schema = schema;
+			Self::save_collection(target_collection);
+
+			Ok(())
+		}
+
+		/// Set const on-chain data schema.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * schema: String representing the const on-chain data schema.
+		#[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]
+		#[transactional]
+		pub fn set_const_on_chain_schema (
+			origin,
+			collection_id: CollectionId,
+			schema: Vec<u8>
+		) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_or_admin_permissions(&target_collection, &sender)?;
 
-            // check schema limit
-            ensure!(schema.len() as u32 <= ChainLimit::get().const_on_chain_schema_limit, "");
+			// check schema limit
+			ensure!(schema.len() as u32 <= ChainLimit::get().const_on_chain_schema_limit, "");
 
-            target_collection.const_on_chain_schema = schema;
-            Self::save_collection(target_collection);
+			target_collection.const_on_chain_schema = schema;
+			Self::save_collection(target_collection);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        /// Set variable on-chain data schema.
-        /// 
-        /// # Permissions
-        /// 
-        /// * Collection Owner
-        /// * Collection Admin
-        /// 
-        /// # Arguments
-        /// 
-        /// * collection_id.
-        /// 
-        /// * schema: String representing the variable on-chain data schema.
-        #[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]
-        #[transactional]
-        pub fn set_variable_on_chain_schema (
-            origin,
-            collection_id: CollectionId,
-            schema: Vec<u8>
-        ) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_or_admin_permissions(&target_collection, &sender)?;
+		/// Set variable on-chain data schema.
+		///
+		/// # Permissions
+		///
+		/// * Collection Owner
+		/// * Collection Admin
+		///
+		/// # Arguments
+		///
+		/// * collection_id.
+		///
+		/// * schema: String representing the variable on-chain data schema.
+		#[weight = <T as Config>::WeightInfo::set_const_on_chain_schema()]
+		#[transactional]
+		pub fn set_variable_on_chain_schema (
+			origin,
+			collection_id: CollectionId,
+			schema: Vec<u8>
+		) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_or_admin_permissions(&target_collection, &sender)?;
 
-            // check schema limit
-            ensure!(schema.len() as u32 <= ChainLimit::get().variable_on_chain_schema_limit, "");
+			// check schema limit
+			ensure!(schema.len() as u32 <= ChainLimit::get().variable_on_chain_schema_limit, "");
 
-            target_collection.variable_on_chain_schema = schema;
-            Self::save_collection(target_collection);
+			target_collection.variable_on_chain_schema = schema;
+			Self::save_collection(target_collection);
 
-            Ok(())
-        }
+			Ok(())
+		}
 
-        // Sudo permissions function
-        #[weight = <T as Config>::WeightInfo::set_chain_limits()]
-        #[transactional]
-        pub fn set_chain_limits(
-            origin,
-            limits: ChainLimits
-        ) -> DispatchResult {
+		// Sudo permissions function
+		#[weight = <T as Config>::WeightInfo::set_chain_limits()]
+		#[transactional]
+		pub fn set_chain_limits(
+			origin,
+			limits: ChainLimits
+		) -> DispatchResult {
 
-            #[cfg(not(feature = "runtime-benchmarks"))]
-            ensure_root(origin)?;
+			#[cfg(not(feature = "runtime-benchmarks"))]
+			ensure_root(origin)?;
 
-            <ChainLimit>::put(limits);
-            Ok(())
-        }
+			<ChainLimit>::put(limits);
+			Ok(())
+		}
 
-        #[weight = <T as Config>::WeightInfo::set_collection_limits()]
-        #[transactional]
-        pub fn set_collection_limits(
-            origin,
-            collection_id: u32,
-            new_limits: CollectionLimits<T::BlockNumber>,
-        ) -> DispatchResult {
-            let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
-            let mut target_collection = Self::get_collection(collection_id)?;
-            Self::check_owner_permissions(&target_collection, &sender.as_sub())?;
-            let old_limits = &target_collection.limits;
-            let chain_limits = ChainLimit::get();
+		#[weight = <T as Config>::WeightInfo::set_collection_limits()]
+		#[transactional]
+		pub fn set_collection_limits(
+			origin,
+			collection_id: u32,
+			new_limits: CollectionLimits<T::BlockNumber>,
+		) -> DispatchResult {
+			let sender = T::CrossAccountId::from_sub(ensure_signed(origin)?);
+			let mut target_collection = Self::get_collection(collection_id)?;
+			Self::check_owner_permissions(&target_collection, sender.as_sub())?;
+			let old_limits = &target_collection.limits;
+			let chain_limits = ChainLimit::get();
 
-            // collection bounds
-            ensure!(new_limits.sponsor_transfer_timeout <= MAX_SPONSOR_TIMEOUT &&
-                new_limits.account_token_ownership_limit <= MAX_TOKEN_OWNERSHIP && 
-                new_limits.sponsored_data_size <= chain_limits.custom_data_limit,
-                Error::<T>::CollectionLimitBoundsExceeded);
+			// collection bounds
+			ensure!(new_limits.sponsor_transfer_timeout <= MAX_SPONSOR_TIMEOUT &&
+				new_limits.account_token_ownership_limit <= MAX_TOKEN_OWNERSHIP &&
+				new_limits.sponsored_data_size <= chain_limits.custom_data_limit,
+				Error::<T>::CollectionLimitBoundsExceeded);
 
-            // token_limit   check  prev
-            ensure!(old_limits.token_limit >= new_limits.token_limit, Error::<T>::CollectionTokenLimitExceeded);
-            ensure!(new_limits.token_limit > 0, Error::<T>::CollectionTokenLimitExceeded);
+			// token_limit   check  prev
+			ensure!(old_limits.token_limit >= new_limits.token_limit, Error::<T>::CollectionTokenLimitExceeded);
+			ensure!(new_limits.token_limit > 0, Error::<T>::CollectionTokenLimitExceeded);
 
-            ensure!(
-                (old_limits.owner_can_transfer || !new_limits.owner_can_transfer) &&
-                (old_limits.owner_can_destroy || !new_limits.owner_can_destroy),
-                Error::<T>::OwnerPermissionsCantBeReverted,
-            );
+			ensure!(
+				(old_limits.owner_can_transfer || !new_limits.owner_can_transfer) &&
+				(old_limits.owner_can_destroy || !new_limits.owner_can_destroy),
+				Error::<T>::OwnerPermissionsCantBeReverted,
+			);
 
-            target_collection.limits = new_limits;
-            Self::save_collection(target_collection);
+			target_collection.limits = new_limits;
+			Self::save_collection(target_collection);
 
-            Ok(())
-        } 
-    }
+			Ok(())
+		}
+	}
 }
 
 impl<T: Config> Module<T> {
-    pub fn create_item_internal(sender: &T::CrossAccountId, collection: &CollectionHandle<T>, owner: &T::CrossAccountId, data: CreateItemData) -> DispatchResult {
-        Self::can_create_items_in_collection(&collection, &sender, &owner, 1)?;
-        Self::validate_create_item_args(&collection, &data)?;
-        Self::create_item_no_validation(&collection, owner, data)?;
+	pub fn create_item_internal(
+		sender: &T::CrossAccountId,
+		collection: &CollectionHandle<T>,
+		owner: &T::CrossAccountId,
+		data: CreateItemData,
+	) -> DispatchResult {
+		Self::can_create_items_in_collection(collection, sender, owner, 1)?;
+		Self::validate_create_item_args(collection, &data)?;
+		Self::create_item_no_validation(collection, owner, data)?;
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    pub fn transfer_internal(sender: &T::CrossAccountId, recipient: &T::CrossAccountId, target_collection: &CollectionHandle<T>, item_id: TokenId, value: u128) -> DispatchResult {
-        target_collection.consume_gas(2000000)?;
-        // Limits check
-        Self::is_correct_transfer(target_collection, &recipient)?;
+	pub fn transfer_internal(
+		sender: &T::CrossAccountId,
+		recipient: &T::CrossAccountId,
+		target_collection: &CollectionHandle<T>,
+		item_id: TokenId,
+		value: u128,
+	) -> DispatchResult {
+		target_collection.consume_gas(2000000)?;
+		// Limits check
+		Self::is_correct_transfer(target_collection, recipient)?;
 
-        // Transfer permissions check
-        ensure!(Self::is_item_owner(&sender, target_collection, item_id) ||
-            Self::is_owner_or_admin_permissions(target_collection, &sender),
-            Error::<T>::NoPermission);
+		// Transfer permissions check
+		ensure!(
+			Self::is_item_owner(sender, target_collection, item_id)
+				|| Self::is_owner_or_admin_permissions(target_collection, sender),
+			Error::<T>::NoPermission
+		);
 
-        if target_collection.access == AccessMode::WhiteList {
-            Self::check_white_list(target_collection, &sender)?;
-            Self::check_white_list(target_collection, &recipient)?;
-        }
+		if target_collection.access == AccessMode::WhiteList {
+			Self::check_white_list(target_collection, sender)?;
+			Self::check_white_list(target_collection, recipient)?;
+		}
 
-        match target_collection.mode
-        {
-            CollectionMode::NFT => Self::transfer_nft(target_collection, item_id, sender.clone(), recipient.clone())?,
-            CollectionMode::Fungible(_)  => Self::transfer_fungible(target_collection, value, &sender, &recipient)?,
-            CollectionMode::ReFungible  => Self::transfer_refungible(target_collection, item_id, value, sender.clone(), recipient.clone())?,
-            _ => ()
-        };
+		match target_collection.mode {
+			CollectionMode::NFT => Self::transfer_nft(
+				target_collection,
+				item_id,
+				sender.clone(),
+				recipient.clone(),
+			)?,
+			CollectionMode::Fungible(_) => {
+				Self::transfer_fungible(target_collection, value, sender, recipient)?
+			}
+			CollectionMode::ReFungible => Self::transfer_refungible(
+				target_collection,
+				item_id,
+				value,
+				sender.clone(),
+				recipient.clone(),
+			)?,
+			_ => (),
+		};
 
-        Self::deposit_event(RawEvent::Transfer(target_collection.id, item_id, sender.clone(), recipient.clone(), value));
+		Self::deposit_event(RawEvent::Transfer(
+			target_collection.id,
+			item_id,
+			sender.clone(),
+			recipient.clone(),
+			value,
+		));
 
-        Ok(())
-    }
+		Ok(())
+	}
 
 	pub fn approve_internal(
 		sender: &T::CrossAccountId,
 		spender: &T::CrossAccountId,
 		collection: &CollectionHandle<T>,
 		item_id: TokenId,
-		amount: u128
+		amount: u128,
 	) -> DispatchResult {
-        collection.consume_gas(2000000)?;
-		Self::token_exists(&collection, item_id)?;
+		collection.consume_gas(2000000)?;
+		Self::token_exists(collection, item_id)?;
 
 		// Transfer permissions check
-		let bypasses_limits = collection.limits.owner_can_transfer &&
-			Self::is_owner_or_admin_permissions(
-				&collection,
-				&sender,
-			);
+		let bypasses_limits = collection.limits.owner_can_transfer
+			&& Self::is_owner_or_admin_permissions(collection, sender);
 
 		let allowance_limit = if bypasses_limits {
 			None
-		} else if let Some(amount) = Self::owned_amount(
-			&sender,
-			&collection,
-			item_id,
-		) {
+		} else if let Some(amount) = Self::owned_amount(sender, collection, item_id) {
 			Some(amount)
 		} else {
 			fail!(Error::<T>::NoPermission);
 		};
 
 		if collection.access == AccessMode::WhiteList {
-			Self::check_white_list(&collection, &sender)?;
-			Self::check_white_list(&collection, &spender)?;
+			Self::check_white_list(collection, sender)?;
+			Self::check_white_list(collection, spender)?;
 		}
 
 		let allowance: u128 = amount
-			.checked_add(<Allowances<T>>::get(collection.id, (item_id, sender.as_sub(), spender.as_sub())))
+			.checked_add(<Allowances<T>>::get(
+				collection.id,
+				(item_id, sender.as_sub(), spender.as_sub()),
+			))
 			.ok_or(Error::<T>::NumOverflow)?;
 		if let Some(limit) = allowance_limit {
 			ensure!(limit >= allowance, Error::<T>::TokenValueTooLow);
 		}
-		<Allowances<T>>::insert(collection.id, (item_id, sender.as_sub(), spender.as_sub()), allowance);
+		<Allowances<T>>::insert(
+			collection.id,
+			(item_id, sender.as_sub(), spender.as_sub()),
+			allowance,
+		);
 
 		if matches!(collection.mode, CollectionMode::NFT) {
 			// TODO: NFT: only one owner may exist for token in ERC721
 			collection.log(ERC721Events::Approval {
-                owner: *sender.as_eth(),
-                approved: *spender.as_eth(),
-                token_id: item_id.into(),
-            });
+				owner: *sender.as_eth(),
+				approved: *spender.as_eth(),
+				token_id: item_id.into(),
+			});
 		}
 
 		if matches!(collection.mode, CollectionMode::Fungible(_)) {
 			// TODO: NFT: only one owner may exist for token in ERC20
 			collection.log(ERC20Events::Approval {
-                owner: *sender.as_eth(),
-                spender: *spender.as_eth(),
-                value: allowance.into()
-            });
+				owner: *sender.as_eth(),
+				spender: *spender.as_eth(),
+				value: allowance.into(),
+			});
 		}
 
-		Self::deposit_event(RawEvent::Approved(collection.id, item_id, sender.clone(), spender.clone(), allowance));
+		Self::deposit_event(RawEvent::Approved(
+			collection.id,
+			item_id,
+			sender.clone(),
+			spender.clone(),
+			allowance,
+		));
 		Ok(())
 	}
 
@@ -1369,879 +1406,981 @@
 		item_id: TokenId,
 		amount: u128,
 	) -> DispatchResult {
-        collection.consume_gas(2000000)?;
+		collection.consume_gas(2000000)?;
 		// Check approval
-		let approval: u128 = <Allowances<T>>::get(collection.id, (item_id, from.as_sub(), sender.as_sub()));
+		let approval: u128 =
+			<Allowances<T>>::get(collection.id, (item_id, from.as_sub(), sender.as_sub()));
 
 		// Limits check
-		Self::is_correct_transfer(&collection, &recipient)?;
+		Self::is_correct_transfer(collection, recipient)?;
 
 		// Transfer permissions check
 		ensure!(
-			approval >= amount || 
-			(
-				collection.limits.owner_can_transfer &&
-				Self::is_owner_or_admin_permissions(&collection, &sender)
-			),
+			approval >= amount
+				|| (collection.limits.owner_can_transfer
+					&& Self::is_owner_or_admin_permissions(collection, sender)),
 			Error::<T>::NoPermission
 		);
 
 		if collection.access == AccessMode::WhiteList {
-			Self::check_white_list(&collection, &sender)?;
-			Self::check_white_list(&collection, &recipient)?;
+			Self::check_white_list(collection, sender)?;
+			Self::check_white_list(collection, recipient)?;
 		}
 
 		// Reduce approval by transferred amount or remove if remaining approval drops to 0
 		let allowance = approval.saturating_sub(amount);
 		if allowance > 0 {
-			<Allowances<T>>::insert(collection.id, (item_id, from.as_sub(), sender.as_sub()), allowance);
+			<Allowances<T>>::insert(
+				collection.id,
+				(item_id, from.as_sub(), sender.as_sub()),
+				allowance,
+			);
 		} else {
 			<Allowances<T>>::remove(collection.id, (item_id, from.as_sub(), sender.as_sub()));
 		}
 
 		match collection.mode {
 			CollectionMode::NFT => {
-				Self::transfer_nft(&collection, item_id, from.clone(), recipient.clone())?
+				Self::transfer_nft(collection, item_id, from.clone(), recipient.clone())?
 			}
 			CollectionMode::Fungible(_) => {
-				Self::transfer_fungible(&collection, amount, &from, &recipient)?
-			}
-			CollectionMode::ReFungible => {
-				Self::transfer_refungible(&collection, item_id, amount, from.clone(), recipient.clone())?
+				Self::transfer_fungible(collection, amount, from, recipient)?
 			}
-			_ => ()
+			CollectionMode::ReFungible => Self::transfer_refungible(
+				collection,
+				item_id,
+				amount,
+				from.clone(),
+				recipient.clone(),
+			)?,
+			_ => (),
 		};
 
 		if matches!(collection.mode, CollectionMode::Fungible(_)) {
 			collection.log(ERC20Events::Approval {
-                owner: *from.as_eth(),
-                spender: *sender.as_eth(),
-                value: allowance.into()
-            });
+				owner: *from.as_eth(),
+				spender: *sender.as_eth(),
+				value: allowance.into(),
+			});
 		}
 
 		Ok(())
 	}
 
-    pub fn set_variable_meta_data_internal(
-        sender: &T::CrossAccountId,
-        collection: &CollectionHandle<T>, 
-        item_id: TokenId,
-        data: Vec<u8>,
-    ) -> DispatchResult {
-        Self::token_exists(&collection, item_id)?;
+	pub fn set_variable_meta_data_internal(
+		sender: &T::CrossAccountId,
+		collection: &CollectionHandle<T>,
+		item_id: TokenId,
+		data: Vec<u8>,
+	) -> DispatchResult {
+		Self::token_exists(collection, item_id)?;
 
-        ensure!(ChainLimit::get().custom_data_limit >= data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);
+		ensure!(
+			ChainLimit::get().custom_data_limit >= data.len() as u32,
+			Error::<T>::TokenVariableDataLimitExceeded
+		);
 
-        // Modify permissions check
-        ensure!(Self::is_item_owner(&sender, &collection, item_id) ||
-            Self::is_owner_or_admin_permissions(&collection, &sender),
-            Error::<T>::NoPermission);
+		// Modify permissions check
+		ensure!(
+			Self::is_item_owner(sender, collection, item_id)
+				|| Self::is_owner_or_admin_permissions(collection, sender),
+			Error::<T>::NoPermission
+		);
 
-        match collection.mode
-        {
-            CollectionMode::NFT => Self::set_nft_variable_data(&collection, item_id, data)?,
-            CollectionMode::ReFungible  => Self::set_re_fungible_variable_data(&collection, item_id, data)?,
-            CollectionMode::Fungible(_) => fail!(Error::<T>::CantStoreMetadataInFungibleTokens),
-            _ => fail!(Error::<T>::UnexpectedCollectionType)
-        };
+		match collection.mode {
+			CollectionMode::NFT => Self::set_nft_variable_data(collection, item_id, data)?,
+			CollectionMode::ReFungible => {
+				Self::set_re_fungible_variable_data(collection, item_id, data)?
+			}
+			CollectionMode::Fungible(_) => fail!(Error::<T>::CantStoreMetadataInFungibleTokens),
+			_ => fail!(Error::<T>::UnexpectedCollectionType),
+		};
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    pub fn create_multiple_items_internal(
-        sender: &T::CrossAccountId,
-        collection: &CollectionHandle<T>,
-        owner: &T::CrossAccountId,
-        items_data: Vec<CreateItemData>,
-    ) -> DispatchResult {
-        Self::can_create_items_in_collection(&collection, &sender, &owner, items_data.len() as u32)?;
+	pub fn create_multiple_items_internal(
+		sender: &T::CrossAccountId,
+		collection: &CollectionHandle<T>,
+		owner: &T::CrossAccountId,
+		items_data: Vec<CreateItemData>,
+	) -> DispatchResult {
+		Self::can_create_items_in_collection(collection, sender, owner, items_data.len() as u32)?;
 
-        for data in &items_data {
-            Self::validate_create_item_args(&collection, data)?;
-        }
-        for data in &items_data {
-            Self::create_item_no_validation(&collection, owner, data.clone())?;
-        }
+		for data in &items_data {
+			Self::validate_create_item_args(collection, data)?;
+		}
+		for data in &items_data {
+			Self::create_item_no_validation(collection, owner, data.clone())?;
+		}
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    pub fn burn_item_internal(
-        sender: &T::CrossAccountId,
-        collection: &CollectionHandle<T>,
-        item_id: TokenId,
-        value: u128,
-    ) -> DispatchResult {
-        ensure!(
-            Self::is_item_owner(&sender, &collection, item_id) ||
-            (
-                collection.limits.owner_can_transfer &&
-                Self::is_owner_or_admin_permissions(&collection, &sender)
-            ),
-            Error::<T>::NoPermission
-        );
+	pub fn burn_item_internal(
+		sender: &T::CrossAccountId,
+		collection: &CollectionHandle<T>,
+		item_id: TokenId,
+		value: u128,
+	) -> DispatchResult {
+		ensure!(
+			Self::is_item_owner(sender, collection, item_id)
+				|| (collection.limits.owner_can_transfer
+					&& Self::is_owner_or_admin_permissions(collection, sender)),
+			Error::<T>::NoPermission
+		);
 
-        if collection.access == AccessMode::WhiteList {
-            Self::check_white_list(&collection, &sender)?;
-        }
+		if collection.access == AccessMode::WhiteList {
+			Self::check_white_list(collection, sender)?;
+		}
 
-        match collection.mode
-        {
-            CollectionMode::NFT => Self::burn_nft_item(&collection, item_id)?,
-            CollectionMode::Fungible(_)  => Self::burn_fungible_item(&sender, &collection, value)?,
-            CollectionMode::ReFungible  => Self::burn_refungible_item(&collection, item_id, &sender)?,
-            _ => ()
-        };
+		match collection.mode {
+			CollectionMode::NFT => Self::burn_nft_item(collection, item_id)?,
+			CollectionMode::Fungible(_) => Self::burn_fungible_item(sender, collection, value)?,
+			CollectionMode::ReFungible => Self::burn_refungible_item(collection, item_id, sender)?,
+			_ => (),
+		};
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    pub fn toggle_white_list_internal(
-        sender: &T::CrossAccountId,
-        collection: &CollectionHandle<T>,
-        address: &T::CrossAccountId,
-        whitelisted: bool,
-    ) -> DispatchResult {
-        Self::check_owner_or_admin_permissions(&collection, &sender)?;
+	pub fn toggle_white_list_internal(
+		sender: &T::CrossAccountId,
+		collection: &CollectionHandle<T>,
+		address: &T::CrossAccountId,
+		whitelisted: bool,
+	) -> DispatchResult {
+		Self::check_owner_or_admin_permissions(collection, sender)?;
 
-        if whitelisted {
-            <WhiteList<T>>::insert(collection.id, address.as_sub(), true);
-        } else {
-            <WhiteList<T>>::remove(collection.id, address.as_sub());
-        }
+		if whitelisted {
+			<WhiteList<T>>::insert(collection.id, address.as_sub(), true);
+		} else {
+			<WhiteList<T>>::remove(collection.id, address.as_sub());
+		}
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn is_correct_transfer(collection: &CollectionHandle<T>, recipient: &T::CrossAccountId) -> DispatchResult {
-        let collection_id = collection.id;
+	fn is_correct_transfer(
+		collection: &CollectionHandle<T>,
+		recipient: &T::CrossAccountId,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        // check token limit and account token limit
-        let account_items: u32 = <AddressTokens<T>>::get(collection_id, recipient.as_sub()).len() as u32;
-        ensure!(collection.limits.account_token_ownership_limit > account_items,  Error::<T>::AccountTokenLimitExceeded);
-        
-        Ok(())
-    }
+		// check token limit and account token limit
+		let account_items: u32 =
+			<AddressTokens<T>>::get(collection_id, recipient.as_sub()).len() as u32;
+		ensure!(
+			collection.limits.account_token_ownership_limit > account_items,
+			Error::<T>::AccountTokenLimitExceeded
+		);
 
-    fn can_create_items_in_collection(collection: &CollectionHandle<T>, sender: &T::CrossAccountId, owner: &T::CrossAccountId, amount: u32) -> DispatchResult {
-        let collection_id = collection.id;
+		Ok(())
+	}
 
-        // check token limit and account token limit
-        let total_items: u32 = ItemListIndex::get(collection_id)
-            .checked_add(amount)
-            .ok_or(Error::<T>::CollectionTokenLimitExceeded)?;
-        let account_items: u32 = (<AddressTokens<T>>::get(collection_id, owner.as_sub()).len() as u32)
-            .checked_add(amount)
-            .ok_or(Error::<T>::AccountTokenLimitExceeded)?;
-        ensure!(collection.limits.token_limit >= total_items,  Error::<T>::CollectionTokenLimitExceeded);
-        ensure!(collection.limits.account_token_ownership_limit >= account_items,  Error::<T>::AccountTokenLimitExceeded);
+	fn can_create_items_in_collection(
+		collection: &CollectionHandle<T>,
+		sender: &T::CrossAccountId,
+		owner: &T::CrossAccountId,
+		amount: u32,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        if !Self::is_owner_or_admin_permissions(collection, &sender) {
-            ensure!(collection.mint_mode == true, Error::<T>::PublicMintingNotAllowed);
-            Self::check_white_list(collection, owner)?;
-            Self::check_white_list(collection, sender)?;
-        }
+		// check token limit and account token limit
+		let total_items: u32 = ItemListIndex::get(collection_id)
+			.checked_add(amount)
+			.ok_or(Error::<T>::CollectionTokenLimitExceeded)?;
+		let account_items: u32 = (<AddressTokens<T>>::get(collection_id, owner.as_sub()).len()
+			as u32)
+			.checked_add(amount)
+			.ok_or(Error::<T>::AccountTokenLimitExceeded)?;
+		ensure!(
+			collection.limits.token_limit >= total_items,
+			Error::<T>::CollectionTokenLimitExceeded
+		);
+		ensure!(
+			collection.limits.account_token_ownership_limit >= account_items,
+			Error::<T>::AccountTokenLimitExceeded
+		);
 
-        Ok(())
-    }
+		if !Self::is_owner_or_admin_permissions(collection, sender) {
+			ensure!(collection.mint_mode, Error::<T>::PublicMintingNotAllowed);
+			Self::check_white_list(collection, owner)?;
+			Self::check_white_list(collection, sender)?;
+		}
 
-    fn validate_create_item_args(target_collection: &CollectionHandle<T>, data: &CreateItemData) -> DispatchResult {
-        match target_collection.mode
-        {
-            CollectionMode::NFT => {
-                if let CreateItemData::NFT(data) = data {
-                    // check sizes
-                    ensure!(ChainLimit::get().custom_data_limit >= data.const_data.len() as u32, Error::<T>::TokenConstDataLimitExceeded);
-                    ensure!(ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);
-                } else {
-                    fail!(Error::<T>::NotNftDataUsedToMintNftCollectionToken);
-                }
-            },
-            CollectionMode::Fungible(_) => {
-                if let CreateItemData::Fungible(_) = data {
-                } else {
-                    fail!(Error::<T>::NotFungibleDataUsedToMintFungibleCollectionToken);
-                }
-            },
-            CollectionMode::ReFungible => {
-                if let CreateItemData::ReFungible(data) = data {
+		Ok(())
+	}
 
-                    // check sizes
-                    ensure!(ChainLimit::get().custom_data_limit >= data.const_data.len() as u32, Error::<T>::TokenConstDataLimitExceeded);
-                    ensure!(ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32, Error::<T>::TokenVariableDataLimitExceeded);
+	fn validate_create_item_args(
+		target_collection: &CollectionHandle<T>,
+		data: &CreateItemData,
+	) -> DispatchResult {
+		match target_collection.mode {
+			CollectionMode::NFT => {
+				if let CreateItemData::NFT(data) = data {
+					// check sizes
+					ensure!(
+						ChainLimit::get().custom_data_limit >= data.const_data.len() as u32,
+						Error::<T>::TokenConstDataLimitExceeded
+					);
+					ensure!(
+						ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32,
+						Error::<T>::TokenVariableDataLimitExceeded
+					);
+				} else {
+					fail!(Error::<T>::NotNftDataUsedToMintNftCollectionToken);
+				}
+			}
+			CollectionMode::Fungible(_) => {
+				if let CreateItemData::Fungible(_) = data {
+				} else {
+					fail!(Error::<T>::NotFungibleDataUsedToMintFungibleCollectionToken);
+				}
+			}
+			CollectionMode::ReFungible => {
+				if let CreateItemData::ReFungible(data) = data {
+					// check sizes
+					ensure!(
+						ChainLimit::get().custom_data_limit >= data.const_data.len() as u32,
+						Error::<T>::TokenConstDataLimitExceeded
+					);
+					ensure!(
+						ChainLimit::get().custom_data_limit >= data.variable_data.len() as u32,
+						Error::<T>::TokenVariableDataLimitExceeded
+					);
 
-                    // Check refungibility limits
-                    ensure!(data.pieces <= MAX_REFUNGIBLE_PIECES, Error::<T>::WrongRefungiblePieces);
-                    ensure!(data.pieces > 0, Error::<T>::WrongRefungiblePieces);
-                } else {
-                    fail!(Error::<T>::NotReFungibleDataUsedToMintReFungibleCollectionToken);
-                }
-            },
-            _ => { fail!(Error::<T>::UnexpectedCollectionType); }
-        };
+					// Check refungibility limits
+					ensure!(
+						data.pieces <= MAX_REFUNGIBLE_PIECES,
+						Error::<T>::WrongRefungiblePieces
+					);
+					ensure!(data.pieces > 0, Error::<T>::WrongRefungiblePieces);
+				} else {
+					fail!(Error::<T>::NotReFungibleDataUsedToMintReFungibleCollectionToken);
+				}
+			}
+			_ => {
+				fail!(Error::<T>::UnexpectedCollectionType);
+			}
+		};
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn create_item_no_validation(collection: &CollectionHandle<T>, owner: &T::CrossAccountId, data: CreateItemData) -> DispatchResult {
-        match data
-        {
-            CreateItemData::NFT(data) => {
-                let item = NftItemType {
-                    owner: owner.clone(),
-                    const_data: data.const_data,
-                    variable_data: data.variable_data
-                };
+	fn create_item_no_validation(
+		collection: &CollectionHandle<T>,
+		owner: &T::CrossAccountId,
+		data: CreateItemData,
+	) -> DispatchResult {
+		match data {
+			CreateItemData::NFT(data) => {
+				let item = NftItemType {
+					owner: owner.clone(),
+					const_data: data.const_data,
+					variable_data: data.variable_data,
+				};
 
-                Self::add_nft_item(collection, item)?;
-            },
-            CreateItemData::Fungible(data) => {
-                Self::add_fungible_item(collection, &owner, data.value)?;
-            },
-            CreateItemData::ReFungible(data) => {
-                let mut owner_list = Vec::new();
-                owner_list.push(Ownership {owner: owner.clone(), fraction: data.pieces});
+				Self::add_nft_item(collection, item)?;
+			}
+			CreateItemData::Fungible(data) => {
+				Self::add_fungible_item(collection, owner, data.value)?;
+			}
+			CreateItemData::ReFungible(data) => {
+				let owner_list = vec![Ownership {
+					owner: owner.clone(),
+					fraction: data.pieces,
+				}];
 
-                let item = ReFungibleItemType {
-                    owner: owner_list,
-                    const_data: data.const_data,
-                    variable_data: data.variable_data
-                };
+				let item = ReFungibleItemType {
+					owner: owner_list,
+					const_data: data.const_data,
+					variable_data: data.variable_data,
+				};
 
-                Self::add_refungible_item(collection, item)?;
-            }
-        };
+				Self::add_refungible_item(collection, item)?;
+			}
+		};
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn add_fungible_item(collection: &CollectionHandle<T>, owner: &T::CrossAccountId, value: u128) -> DispatchResult {
-        let collection_id = collection.id;
+	fn add_fungible_item(
+		collection: &CollectionHandle<T>,
+		owner: &T::CrossAccountId,
+		value: u128,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        // Does new owner already have an account?
-        let balance: u128 = <FungibleItemList<T>>::get(collection_id, owner.as_sub()).value;
+		// Does new owner already have an account?
+		let balance: u128 = <FungibleItemList<T>>::get(collection_id, owner.as_sub()).value;
 
-        // Mint 
-        let item = FungibleItemType {
-            value: balance.checked_add(value).ok_or(Error::<T>::NumOverflow)?,
-        };
-        <FungibleItemList<T>>::insert(collection_id, owner.as_sub(), item);
+		// Mint
+		let item = FungibleItemType {
+			value: balance.checked_add(value).ok_or(Error::<T>::NumOverflow)?,
+		};
+		<FungibleItemList<T>>::insert(collection_id, owner.as_sub(), item);
 
-        // Update balance
-        let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())
-            .checked_add(value)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
+		// Update balance
+		let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())
+			.checked_add(value)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
 
-        Self::deposit_event(RawEvent::ItemCreated(collection_id, 0, owner.clone()));
-        Ok(())
-    }
+		Self::deposit_event(RawEvent::ItemCreated(collection_id, 0, owner.clone()));
+		Ok(())
+	}
 
-    fn add_refungible_item(collection: &CollectionHandle<T>, item: ReFungibleItemType<T::CrossAccountId>) -> DispatchResult {
-        let collection_id = collection.id;
+	fn add_refungible_item(
+		collection: &CollectionHandle<T>,
+		item: ReFungibleItemType<T::CrossAccountId>,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        let current_index = <ItemListIndex>::get(collection_id)
-            .checked_add(1)
-            .ok_or(Error::<T>::NumOverflow)?;
-        let itemcopy = item.clone();
+		let current_index = <ItemListIndex>::get(collection_id)
+			.checked_add(1)
+			.ok_or(Error::<T>::NumOverflow)?;
+		let itemcopy = item.clone();
 
-        ensure!(
-            item.owner.len() == 1,
-            Error::<T>::BadCreateRefungibleCall,
-        );
-        let item_owner = item.owner.first().expect("only one owner is defined");
+		ensure!(item.owner.len() == 1, Error::<T>::BadCreateRefungibleCall,);
+		let item_owner = item.owner.first().expect("only one owner is defined");
 
-        let value = item_owner.fraction;
-        let owner = item_owner.owner.clone();
+		let value = item_owner.fraction;
+		let owner = item_owner.owner.clone();
 
-        Self::add_token_index(collection_id, current_index, &owner)?;
+		Self::add_token_index(collection_id, current_index, &owner)?;
 
-        <ItemListIndex>::insert(collection_id, current_index);
-        <ReFungibleItemList<T>>::insert(collection_id, current_index, itemcopy);
+		<ItemListIndex>::insert(collection_id, current_index);
+		<ReFungibleItemList<T>>::insert(collection_id, current_index, itemcopy);
 
-        // Update balance
-        let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())
-            .checked_add(value)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
+		// Update balance
+		let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())
+			.checked_add(value)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
 
-        Self::deposit_event(RawEvent::ItemCreated(collection_id, current_index, owner));
-        Ok(())
-    }
+		Self::deposit_event(RawEvent::ItemCreated(collection_id, current_index, owner));
+		Ok(())
+	}
 
-    fn add_nft_item(collection: &CollectionHandle<T>, item: NftItemType<T::CrossAccountId>) -> DispatchResult {
-        let collection_id = collection.id;
+	fn add_nft_item(
+		collection: &CollectionHandle<T>,
+		item: NftItemType<T::CrossAccountId>,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        let current_index = <ItemListIndex>::get(collection_id)
-            .checked_add(1)
-            .ok_or(Error::<T>::NumOverflow)?;
+		let current_index = <ItemListIndex>::get(collection_id)
+			.checked_add(1)
+			.ok_or(Error::<T>::NumOverflow)?;
 
-        let item_owner = item.owner.clone();
-        Self::add_token_index(collection_id, current_index, &item.owner)?;
+		let item_owner = item.owner.clone();
+		Self::add_token_index(collection_id, current_index, &item.owner)?;
 
-        <ItemListIndex>::insert(collection_id, current_index);
-        <NftItemList<T>>::insert(collection_id, current_index, item);
+		<ItemListIndex>::insert(collection_id, current_index);
+		<NftItemList<T>>::insert(collection_id, current_index, item);
 
-        // Update balance
-        let new_balance = <Balance<T>>::get(collection_id, item_owner.as_sub())
-            .checked_add(1)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, item_owner.as_sub(), new_balance);
+		// Update balance
+		let new_balance = <Balance<T>>::get(collection_id, item_owner.as_sub())
+			.checked_add(1)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, item_owner.as_sub(), new_balance);
 
-        collection.log(ERC721Events::Transfer {
-            from: H160::default(),
-            to: *item_owner.as_eth(),
-            token_id: current_index.into(),
-        });
-        Self::deposit_event(RawEvent::ItemCreated(collection_id, current_index, item_owner));
-        Ok(())
-    }
+		collection.log(ERC721Events::Transfer {
+			from: H160::default(),
+			to: *item_owner.as_eth(),
+			token_id: current_index.into(),
+		});
+		Self::deposit_event(RawEvent::ItemCreated(
+			collection_id,
+			current_index,
+			item_owner,
+		));
+		Ok(())
+	}
 
-    fn burn_refungible_item(
-        collection: &CollectionHandle<T>,
-        item_id: TokenId,
-        owner: &T::CrossAccountId,
-    ) -> DispatchResult {
-        let collection_id = collection.id;
+	fn burn_refungible_item(
+		collection: &CollectionHandle<T>,
+		item_id: TokenId,
+		owner: &T::CrossAccountId,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        let mut token = <ReFungibleItemList<T>>::get(collection_id, item_id)
-            .ok_or(Error::<T>::TokenNotFound)?;
-        let rft_balance = token
-            .owner
-            .iter()
-            .find(|&i| i.owner == *owner)
-            .ok_or(Error::<T>::TokenNotFound)?;
-        Self::remove_token_index(collection_id, item_id, owner)?;
+		let mut token = <ReFungibleItemList<T>>::get(collection_id, item_id)
+			.ok_or(Error::<T>::TokenNotFound)?;
+		let rft_balance = token
+			.owner
+			.iter()
+			.find(|&i| i.owner == *owner)
+			.ok_or(Error::<T>::TokenNotFound)?;
+		Self::remove_token_index(collection_id, item_id, owner)?;
 
-        // update balance
-        let new_balance = <Balance<T>>::get(collection_id, rft_balance.owner.as_sub())
-            .checked_sub(rft_balance.fraction)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, rft_balance.owner.as_sub(), new_balance);
+		// update balance
+		let new_balance = <Balance<T>>::get(collection_id, rft_balance.owner.as_sub())
+			.checked_sub(rft_balance.fraction)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, rft_balance.owner.as_sub(), new_balance);
 
-        // Re-create owners list with sender removed
-        let index = token
-            .owner
-            .iter()
-            .position(|i| i.owner == *owner)
-            .expect("owned item is exists");
-        token.owner.remove(index);
-        let owner_count = token.owner.len();
+		// Re-create owners list with sender removed
+		let index = token
+			.owner
+			.iter()
+			.position(|i| i.owner == *owner)
+			.expect("owned item is exists");
+		token.owner.remove(index);
+		let owner_count = token.owner.len();
 
-        // Burn the token completely if this was the last (only) owner
-        if owner_count == 0 {
-            <ReFungibleItemList<T>>::remove(collection_id, item_id);
-            <VariableMetaDataBasket<T>>::remove(collection_id, item_id);
-        }
-        else {
-            <ReFungibleItemList<T>>::insert(collection_id, item_id, token);
-        }
+		// Burn the token completely if this was the last (only) owner
+		if owner_count == 0 {
+			<ReFungibleItemList<T>>::remove(collection_id, item_id);
+			<VariableMetaDataBasket<T>>::remove(collection_id, item_id);
+		} else {
+			<ReFungibleItemList<T>>::insert(collection_id, item_id, token);
+		}
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn burn_nft_item(collection: &CollectionHandle<T>, item_id: TokenId) -> DispatchResult {
-        let collection_id = collection.id;
+	fn burn_nft_item(collection: &CollectionHandle<T>, item_id: TokenId) -> DispatchResult {
+		let collection_id = collection.id;
 
-        let item = <NftItemList<T>>::get(collection_id, item_id)
-            .ok_or(Error::<T>::TokenNotFound)?;
-        Self::remove_token_index(collection_id, item_id, &item.owner)?;
+		let item =
+			<NftItemList<T>>::get(collection_id, item_id).ok_or(Error::<T>::TokenNotFound)?;
+		Self::remove_token_index(collection_id, item_id, &item.owner)?;
 
-        // update balance
-        let new_balance = <Balance<T>>::get(collection_id, item.owner.as_sub())
-            .checked_sub(1)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, item.owner.as_sub(), new_balance);
-        <NftItemList<T>>::remove(collection_id, item_id);
-        <VariableMetaDataBasket<T>>::remove(collection_id, item_id);
+		// update balance
+		let new_balance = <Balance<T>>::get(collection_id, item.owner.as_sub())
+			.checked_sub(1)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, item.owner.as_sub(), new_balance);
+		<NftItemList<T>>::remove(collection_id, item_id);
+		<VariableMetaDataBasket<T>>::remove(collection_id, item_id);
 
-        Self::deposit_event(RawEvent::ItemDestroyed(collection.id, item_id));
-        Ok(())
-    }
+		Self::deposit_event(RawEvent::ItemDestroyed(collection.id, item_id));
+		Ok(())
+	}
 
-    fn burn_fungible_item(owner: &T::CrossAccountId, collection: &CollectionHandle<T>, value: u128) -> DispatchResult {
-        let collection_id = collection.id;
+	fn burn_fungible_item(
+		owner: &T::CrossAccountId,
+		collection: &CollectionHandle<T>,
+		value: u128,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        let mut balance = <FungibleItemList<T>>::get(collection_id, owner.as_sub());
-        ensure!(balance.value >= value, Error::<T>::TokenValueNotEnough);
+		let mut balance = <FungibleItemList<T>>::get(collection_id, owner.as_sub());
+		ensure!(balance.value >= value, Error::<T>::TokenValueNotEnough);
 
-        // update balance
-        let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())
-            .checked_sub(value)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
+		// update balance
+		let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())
+			.checked_sub(value)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
 
-        if balance.value - value > 0 {
-            balance.value -= value;
-            <FungibleItemList<T>>::insert(collection_id, owner.as_sub(), balance);
-        }
-        else {
-            <FungibleItemList<T>>::remove(collection_id, owner.as_sub());
-        }
+		if balance.value - value > 0 {
+			balance.value -= value;
+			<FungibleItemList<T>>::insert(collection_id, owner.as_sub(), balance);
+		} else {
+			<FungibleItemList<T>>::remove(collection_id, owner.as_sub());
+		}
 
-        collection.log(ERC20Events::Transfer {
-            from: *owner.as_eth(),
-            to: H160::default(),
-            value: value.into(),
-        });
-        Ok(())
-    }
+		collection.log(ERC20Events::Transfer {
+			from: *owner.as_eth(),
+			to: H160::default(),
+			value: value.into(),
+		});
+		Ok(())
+	}
 
-    pub fn get_collection(collection_id: CollectionId) -> Result<CollectionHandle<T>, sp_runtime::DispatchError> {
-        Ok(<CollectionHandle<T>>::get(collection_id)
-            .ok_or(Error::<T>::CollectionNotFound)?)
-    }
+	pub fn get_collection(
+		collection_id: CollectionId,
+	) -> Result<CollectionHandle<T>, sp_runtime::DispatchError> {
+		Ok(<CollectionHandle<T>>::get(collection_id).ok_or(Error::<T>::CollectionNotFound)?)
+	}
 
-    fn save_collection(collection: CollectionHandle<T>) {
-        <CollectionById<T>>::insert(collection.id, collection.into_inner());
-    }
+	fn save_collection(collection: CollectionHandle<T>) {
+		<CollectionById<T>>::insert(collection.id, collection.into_inner());
+	}
 
-    pub fn submit_logs(collection: CollectionHandle<T>) -> DispatchResult {
-        if collection.logs.is_empty() {
-            return Ok(())
-        }
-        T::EthereumTransactionSender::submit_logs_transaction(
-            eth::generate_transaction(collection.id, T::EthereumChainId::get()),
-            collection.logs.retrieve_logs(),
-        )
-    }
+	pub fn submit_logs(collection: CollectionHandle<T>) -> DispatchResult {
+		if collection.logs.is_empty() {
+			return Ok(());
+		}
+		T::EthereumTransactionSender::submit_logs_transaction(
+			eth::generate_transaction(collection.id, T::EthereumChainId::get()),
+			collection.logs.retrieve_logs(),
+		)
+	}
 
-    fn check_owner_permissions(target_collection: &CollectionHandle<T>, subject: &T::AccountId) -> DispatchResult {
-        ensure!(
-            *subject == target_collection.owner,
-            Error::<T>::NoPermission
-        );
+	fn check_owner_permissions(
+		target_collection: &CollectionHandle<T>,
+		subject: &T::AccountId,
+	) -> DispatchResult {
+		ensure!(
+			*subject == target_collection.owner,
+			Error::<T>::NoPermission
+		);
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn is_owner_or_admin_permissions(collection: &CollectionHandle<T>, subject: &T::CrossAccountId) -> bool {
-        *subject.as_sub() == collection.owner || <AdminList<T>>::get(collection.id).contains(&subject)
-    }
+	fn is_owner_or_admin_permissions(
+		collection: &CollectionHandle<T>,
+		subject: &T::CrossAccountId,
+	) -> bool {
+		*subject.as_sub() == collection.owner
+			|| <AdminList<T>>::get(collection.id).contains(subject)
+	}
 
-    fn check_owner_or_admin_permissions(
-        collection: &CollectionHandle<T>,
-        subject: &T::CrossAccountId,
-    ) -> DispatchResult {
-        ensure!(Self::is_owner_or_admin_permissions(collection, subject), Error::<T>::NoPermission);
+	fn check_owner_or_admin_permissions(
+		collection: &CollectionHandle<T>,
+		subject: &T::CrossAccountId,
+	) -> DispatchResult {
+		ensure!(
+			Self::is_owner_or_admin_permissions(collection, subject),
+			Error::<T>::NoPermission
+		);
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn owned_amount(
-        subject: &T::CrossAccountId,
-        target_collection: &CollectionHandle<T>,
-        item_id: TokenId,
-    ) -> Option<u128> {
-        let collection_id = target_collection.id;
+	fn owned_amount(
+		subject: &T::CrossAccountId,
+		target_collection: &CollectionHandle<T>,
+		item_id: TokenId,
+	) -> Option<u128> {
+		let collection_id = target_collection.id;
 
-        match target_collection.mode {
-            CollectionMode::NFT => (<NftItemList<T>>::get(collection_id, item_id)?.owner == *subject)
-                .then(|| 1),
-            CollectionMode::Fungible(_) => Some(<FungibleItemList<T>>::get(collection_id, &subject.as_sub())
-                .value),
-            CollectionMode::ReFungible => <ReFungibleItemList<T>>::get(collection_id, item_id)?
-                .owner
-                .iter()
-                .find(|i| i.owner == *subject)
-                .map(|i| i.fraction),
-            CollectionMode::Invalid => None,
-        }
-    }
+		match target_collection.mode {
+			CollectionMode::NFT => {
+				(<NftItemList<T>>::get(collection_id, item_id)?.owner == *subject).then(|| 1)
+			}
+			CollectionMode::Fungible(_) => {
+				Some(<FungibleItemList<T>>::get(collection_id, &subject.as_sub()).value)
+			}
+			CollectionMode::ReFungible => <ReFungibleItemList<T>>::get(collection_id, item_id)?
+				.owner
+				.iter()
+				.find(|i| i.owner == *subject)
+				.map(|i| i.fraction),
+			CollectionMode::Invalid => None,
+		}
+	}
 
-    fn is_item_owner(subject: &T::CrossAccountId, target_collection: &CollectionHandle<T>, item_id: TokenId) -> bool {
-        match target_collection.mode {
-            CollectionMode::Fungible(_) => true,
-            _ => Self::owned_amount(&subject, target_collection, item_id).is_some(),
-        }
-    }
+	fn is_item_owner(
+		subject: &T::CrossAccountId,
+		target_collection: &CollectionHandle<T>,
+		item_id: TokenId,
+	) -> bool {
+		match target_collection.mode {
+			CollectionMode::Fungible(_) => true,
+			_ => Self::owned_amount(subject, target_collection, item_id).is_some(),
+		}
+	}
 
-    fn check_white_list(collection: &CollectionHandle<T>, address: &T::CrossAccountId) -> DispatchResult {
-        let collection_id = collection.id;
+	fn check_white_list(
+		collection: &CollectionHandle<T>,
+		address: &T::CrossAccountId,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        let mes = Error::<T>::AddresNotInWhiteList;
-        ensure!(<WhiteList<T>>::contains_key(collection_id, address.as_sub()), mes);
+		let mes = Error::<T>::AddresNotInWhiteList;
+		ensure!(
+			<WhiteList<T>>::contains_key(collection_id, address.as_sub()),
+			mes
+		);
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    /// Check if token exists. In case of Fungible, check if there is an entry for 
-    /// the owner in fungible balances double map
-    fn token_exists(
-        target_collection: &CollectionHandle<T>,
-        item_id: TokenId,
-    ) -> DispatchResult {
-        let collection_id = target_collection.id;
-        let exists = match target_collection.mode
-        {
-            CollectionMode::NFT => <NftItemList<T>>::contains_key(collection_id, item_id),
-            CollectionMode::Fungible(_)  => true,
-            CollectionMode::ReFungible  => <ReFungibleItemList<T>>::contains_key(collection_id, item_id),
-            _ => false
-        };
+	/// Check if token exists. In case of Fungible, check if there is an entry for
+	/// the owner in fungible balances double map
+	fn token_exists(target_collection: &CollectionHandle<T>, item_id: TokenId) -> DispatchResult {
+		let collection_id = target_collection.id;
+		let exists = match target_collection.mode {
+			CollectionMode::NFT => <NftItemList<T>>::contains_key(collection_id, item_id),
+			CollectionMode::Fungible(_) => true,
+			CollectionMode::ReFungible => {
+				<ReFungibleItemList<T>>::contains_key(collection_id, item_id)
+			}
+			_ => false,
+		};
 
-        ensure!(exists == true, Error::<T>::TokenNotFound);
-        Ok(())
-    }
+		ensure!(exists, Error::<T>::TokenNotFound);
+		Ok(())
+	}
 
-    fn transfer_fungible(
-        collection: &CollectionHandle<T>,
-        value: u128,
-        owner: &T::CrossAccountId,
-        recipient: &T::CrossAccountId,
-    ) -> DispatchResult {
-        let collection_id = collection.id;
+	fn transfer_fungible(
+		collection: &CollectionHandle<T>,
+		value: u128,
+		owner: &T::CrossAccountId,
+		recipient: &T::CrossAccountId,
+	) -> DispatchResult {
+		let collection_id = collection.id;
 
-        let mut balance = <FungibleItemList<T>>::get(collection_id, owner.as_sub());
-        ensure!(balance.value >= value, Error::<T>::TokenValueTooLow);
+		let mut balance = <FungibleItemList<T>>::get(collection_id, owner.as_sub());
+		ensure!(balance.value >= value, Error::<T>::TokenValueTooLow);
 
-        // Send balance to recipient (updates balanceOf of recipient)
-        Self::add_fungible_item(collection, recipient, value)?;
+		// Send balance to recipient (updates balanceOf of recipient)
+		Self::add_fungible_item(collection, recipient, value)?;
 
-        // update balanceOf of sender
-        <Balance<T>>::insert(collection_id, owner.as_sub(), balance.value - value);
+		// update balanceOf of sender
+		<Balance<T>>::insert(collection_id, owner.as_sub(), balance.value - value);
 
-        // Reduce or remove sender
-        if balance.value == value {
-            <FungibleItemList<T>>::remove(collection_id, owner.as_sub());
-        }
-        else {
-            balance.value -= value;
-            <FungibleItemList<T>>::insert(collection_id, owner.as_sub(), balance);
-        }
+		// Reduce or remove sender
+		if balance.value == value {
+			<FungibleItemList<T>>::remove(collection_id, owner.as_sub());
+		} else {
+			balance.value -= value;
+			<FungibleItemList<T>>::insert(collection_id, owner.as_sub(), balance);
+		}
 
-        collection.log(ERC20Events::Transfer {
-            from: *owner.as_eth(),
-            to: *recipient.as_eth(),
-            value: value.into(),
-        });
-        Self::deposit_event(RawEvent::Transfer(collection.id, 1, owner.clone(), recipient.clone(), value));
+		collection.log(ERC20Events::Transfer {
+			from: *owner.as_eth(),
+			to: *recipient.as_eth(),
+			value: value.into(),
+		});
+		Self::deposit_event(RawEvent::Transfer(
+			collection.id,
+			1,
+			owner.clone(),
+			recipient.clone(),
+			value,
+		));
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn transfer_refungible(
-        collection: &CollectionHandle<T>,
-        item_id: TokenId,
-        value: u128,
-        owner: T::CrossAccountId,
-        new_owner: T::CrossAccountId,
-    ) -> DispatchResult {
-        let collection_id = collection.id;
-        let full_item = <ReFungibleItemList<T>>::get(collection_id, item_id)
-            .ok_or(Error::<T>::TokenNotFound)?;
+	fn transfer_refungible(
+		collection: &CollectionHandle<T>,
+		item_id: TokenId,
+		value: u128,
+		owner: T::CrossAccountId,
+		new_owner: T::CrossAccountId,
+	) -> DispatchResult {
+		let collection_id = collection.id;
+		let full_item = <ReFungibleItemList<T>>::get(collection_id, item_id)
+			.ok_or(Error::<T>::TokenNotFound)?;
 
-        let item = full_item
-            .owner
-            .iter()
-            .filter(|i| i.owner == owner)
-            .next()
-            .ok_or(Error::<T>::TokenNotFound)?;
-        let amount = item.fraction;
+		let item = full_item
+			.owner
+			.iter()
+			.find(|i| i.owner == owner)
+			.ok_or(Error::<T>::TokenNotFound)?;
+		let amount = item.fraction;
 
-        ensure!(amount >= value, Error::<T>::TokenValueTooLow);
+		ensure!(amount >= value, Error::<T>::TokenValueTooLow);
 
-        // update balance
-        let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.as_sub())
-            .checked_sub(value)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, item.owner.as_sub(), balance_old_owner);
+		// update balance
+		let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.as_sub())
+			.checked_sub(value)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, item.owner.as_sub(), balance_old_owner);
 
-        let balance_new_owner = <Balance<T>>::get(collection_id, new_owner.as_sub())
-            .checked_add(value)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, new_owner.as_sub(), balance_new_owner);
+		let balance_new_owner = <Balance<T>>::get(collection_id, new_owner.as_sub())
+			.checked_add(value)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, new_owner.as_sub(), balance_new_owner);
 
-        let old_owner = item.owner.clone();
-        let new_owner_has_account = full_item.owner.iter().any(|i| i.owner == new_owner);
+		let old_owner = item.owner.clone();
+		let new_owner_has_account = full_item.owner.iter().any(|i| i.owner == new_owner);
 
-        // transfer
-        if amount == value && !new_owner_has_account {
-            // change owner
-            // new owner do not have account
-            let mut new_full_item = full_item.clone();
-            new_full_item
-                .owner
-                .iter_mut()
-                .find(|i| i.owner == owner)
-                .expect("old owner does present in refungible")
-                .owner = new_owner.clone();
-            <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);
+		let mut new_full_item = full_item.clone();
+		// transfer
+		if amount == value && !new_owner_has_account {
+			// change owner
+			// new owner do not have account
+			new_full_item
+				.owner
+				.iter_mut()
+				.find(|i| i.owner == owner)
+				.expect("old owner does present in refungible")
+				.owner = new_owner.clone();
+			<ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);
 
-            // update index collection
-            Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;
-        } else {
-            let mut new_full_item = full_item.clone();
-            new_full_item
-                .owner
-                .iter_mut()
-                .find(|i| i.owner == owner)
-                .expect("old owner does present in refungible")
-                .fraction -= value;
+			// update index collection
+			Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;
+		} else {
+			new_full_item
+				.owner
+				.iter_mut()
+				.find(|i| i.owner == owner)
+				.expect("old owner does present in refungible")
+				.fraction -= value;
 
-            // separate amount
-            if new_owner_has_account {
-                // new owner has account
-                new_full_item
-                    .owner
-                    .iter_mut()
-                    .find(|i| i.owner == new_owner)
-                    .expect("new owner has account")
-                    .fraction += value;
-            } else {
-                // new owner do not have account
-                new_full_item.owner.push(Ownership {
-                    owner: new_owner.clone(),
-                    fraction: value,
-                });
-                Self::add_token_index(collection_id, item_id, &new_owner)?;
-            }
+			// separate amount
+			if new_owner_has_account {
+				// new owner has account
+				new_full_item
+					.owner
+					.iter_mut()
+					.find(|i| i.owner == new_owner)
+					.expect("new owner has account")
+					.fraction += value;
+			} else {
+				// new owner do not have account
+				new_full_item.owner.push(Ownership {
+					owner: new_owner.clone(),
+					fraction: value,
+				});
+				Self::add_token_index(collection_id, item_id, &new_owner)?;
+			}
 
-            <ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);
-        }
+			<ReFungibleItemList<T>>::insert(collection_id, item_id, new_full_item);
+		}
 
-        Self::deposit_event(RawEvent::Transfer(collection.id, item_id, owner, new_owner, amount));
+		Self::deposit_event(RawEvent::Transfer(
+			collection.id,
+			item_id,
+			owner,
+			new_owner,
+			amount,
+		));
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn transfer_nft(
-        collection: &CollectionHandle<T>,
-        item_id: TokenId,
-        sender: T::CrossAccountId,
-        new_owner: T::CrossAccountId,
-    ) -> DispatchResult {
-        let collection_id = collection.id;
-        let mut item = <NftItemList<T>>::get(collection_id, item_id)
-            .ok_or(Error::<T>::TokenNotFound)?;
+	fn transfer_nft(
+		collection: &CollectionHandle<T>,
+		item_id: TokenId,
+		sender: T::CrossAccountId,
+		new_owner: T::CrossAccountId,
+	) -> DispatchResult {
+		let collection_id = collection.id;
+		let mut item =
+			<NftItemList<T>>::get(collection_id, item_id).ok_or(Error::<T>::TokenNotFound)?;
 
-        ensure!(
-            sender == item.owner,
-            Error::<T>::MustBeTokenOwner
-        );
+		ensure!(sender == item.owner, Error::<T>::MustBeTokenOwner);
 
-        // update balance
-        let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.as_sub())
-            .checked_sub(1)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, item.owner.as_sub(), balance_old_owner);
+		// update balance
+		let balance_old_owner = <Balance<T>>::get(collection_id, item.owner.as_sub())
+			.checked_sub(1)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, item.owner.as_sub(), balance_old_owner);
 
-        let balance_new_owner = <Balance<T>>::get(collection_id, new_owner.as_sub())
-            .checked_add(1)
-            .ok_or(Error::<T>::NumOverflow)?;
-        <Balance<T>>::insert(collection_id, new_owner.as_sub(), balance_new_owner);
+		let balance_new_owner = <Balance<T>>::get(collection_id, new_owner.as_sub())
+			.checked_add(1)
+			.ok_or(Error::<T>::NumOverflow)?;
+		<Balance<T>>::insert(collection_id, new_owner.as_sub(), balance_new_owner);
 
-        // change owner
-        let old_owner = item.owner.clone();
-        item.owner = new_owner.clone();
-        <NftItemList<T>>::insert(collection_id, item_id, item);
+		// change owner
+		let old_owner = item.owner.clone();
+		item.owner = new_owner.clone();
+		<NftItemList<T>>::insert(collection_id, item_id, item);
 
-        // update index collection
-        Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;
+		// update index collection
+		Self::move_token_index(collection_id, item_id, &old_owner, &new_owner)?;
 
-        collection.log(ERC721Events::Transfer {
-            from: *sender.as_eth(),
-            to: *new_owner.as_eth(),
-            token_id: item_id.into(),
-        });
-        Self::deposit_event(RawEvent::Transfer(collection.id, item_id, sender, new_owner, 1));
+		collection.log(ERC721Events::Transfer {
+			from: *sender.as_eth(),
+			to: *new_owner.as_eth(),
+			token_id: item_id.into(),
+		});
+		Self::deposit_event(RawEvent::Transfer(
+			collection.id,
+			item_id,
+			sender,
+			new_owner,
+			1,
+		));
 
-        Ok(())
-    }
-    
-    fn set_re_fungible_variable_data(
-        collection: &CollectionHandle<T>,
-        item_id: TokenId,
-        data: Vec<u8>
-    ) -> DispatchResult {
-        let collection_id = collection.id;
-        let mut item = <ReFungibleItemList<T>>::get(collection_id, item_id)
-            .ok_or(Error::<T>::TokenNotFound)?;
+		Ok(())
+	}
 
-        item.variable_data = data;
+	fn set_re_fungible_variable_data(
+		collection: &CollectionHandle<T>,
+		item_id: TokenId,
+		data: Vec<u8>,
+	) -> DispatchResult {
+		let collection_id = collection.id;
+		let mut item = <ReFungibleItemList<T>>::get(collection_id, item_id)
+			.ok_or(Error::<T>::TokenNotFound)?;
 
-        <ReFungibleItemList<T>>::insert(collection_id, item_id, item);
+		item.variable_data = data;
 
-        Ok(())
-    }
+		<ReFungibleItemList<T>>::insert(collection_id, item_id, item);
 
-    fn set_nft_variable_data(
-        collection: &CollectionHandle<T>,
-        item_id: TokenId,
-        data: Vec<u8>
-    ) -> DispatchResult {
-        let collection_id = collection.id;
-        let mut item = <NftItemList<T>>::get(collection_id, item_id)
-            .ok_or(Error::<T>::TokenNotFound)?;
-        
-        item.variable_data = data;
+		Ok(())
+	}
 
-        <NftItemList<T>>::insert(collection_id, item_id, item);
-        
-        Ok(())
-    }
+	fn set_nft_variable_data(
+		collection: &CollectionHandle<T>,
+		item_id: TokenId,
+		data: Vec<u8>,
+	) -> DispatchResult {
+		let collection_id = collection.id;
+		let mut item =
+			<NftItemList<T>>::get(collection_id, item_id).ok_or(Error::<T>::TokenNotFound)?;
 
-    #[allow(dead_code)]
-    fn init_collection(item: &Collection<T>) {
-        // check params
-        assert!(
-            item.decimal_points <= MAX_DECIMAL_POINTS,
-            "decimal_points parameter must be lower than MAX_DECIMAL_POINTS"
-        );
-        assert!(
-            item.name.len() <= 64,
-            "Collection name can not be longer than 63 char"
-        );
-        assert!(
-            item.name.len() <= 256,
-            "Collection description can not be longer than 255 char"
-        );
-        assert!(
-            item.token_prefix.len() <= 16,
-            "Token prefix can not be longer than 15 char"
-        );
+		item.variable_data = data;
 
-        // Generate next collection ID
-        let next_id = CreatedCollectionCount::get()
-            .checked_add(1)
-            .unwrap();
+		<NftItemList<T>>::insert(collection_id, item_id, item);
 
-        CreatedCollectionCount::put(next_id);
-    }
+		Ok(())
+	}
 
-    #[allow(dead_code)]
-    fn init_nft_token(collection_id: CollectionId, item: &NftItemType<T::CrossAccountId>) {
-        let current_index = <ItemListIndex>::get(collection_id)
-            .checked_add(1)
-            .unwrap();
+	#[allow(dead_code)]
+	fn init_collection(item: &Collection<T>) {
+		// check params
+		assert!(
+			item.decimal_points <= MAX_DECIMAL_POINTS,
+			"decimal_points parameter must be lower than MAX_DECIMAL_POINTS"
+		);
+		assert!(
+			item.name.len() <= 64,
+			"Collection name can not be longer than 63 char"
+		);
+		assert!(
+			item.name.len() <= 256,
+			"Collection description can not be longer than 255 char"
+		);
+		assert!(
+			item.token_prefix.len() <= 16,
+			"Token prefix can not be longer than 15 char"
+		);
 
-        Self::add_token_index(collection_id, current_index, &item.owner).unwrap();
+		// Generate next collection ID
+		let next_id = CreatedCollectionCount::get().checked_add(1).unwrap();
 
-        <ItemListIndex>::insert(collection_id, current_index);
+		CreatedCollectionCount::put(next_id);
+	}
 
-        // Update balance
-        let new_balance = <Balance<T>>::get(collection_id, item.owner.as_sub())
-            .checked_add(1)
-            .unwrap();
-        <Balance<T>>::insert(collection_id, item.owner.as_sub(), new_balance);
-    }
+	#[allow(dead_code)]
+	fn init_nft_token(collection_id: CollectionId, item: &NftItemType<T::CrossAccountId>) {
+		let current_index = <ItemListIndex>::get(collection_id).checked_add(1).unwrap();
 
-    #[allow(dead_code)]
-    fn init_fungible_token(collection_id: CollectionId, owner: &T::CrossAccountId, item: &FungibleItemType) {
-        let current_index = <ItemListIndex>::get(collection_id)
-            .checked_add(1)
-            .unwrap();
+		Self::add_token_index(collection_id, current_index, &item.owner).unwrap();
 
-        Self::add_token_index(collection_id, current_index, owner).unwrap();
+		<ItemListIndex>::insert(collection_id, current_index);
 
-        <ItemListIndex>::insert(collection_id, current_index);
+		// Update balance
+		let new_balance = <Balance<T>>::get(collection_id, item.owner.as_sub())
+			.checked_add(1)
+			.unwrap();
+		<Balance<T>>::insert(collection_id, item.owner.as_sub(), new_balance);
+	}
 
-        // Update balance
-        let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())
-            .checked_add(item.value)
-            .unwrap();
-        <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
-    }
+	#[allow(dead_code)]
+	fn init_fungible_token(
+		collection_id: CollectionId,
+		owner: &T::CrossAccountId,
+		item: &FungibleItemType,
+	) {
+		let current_index = <ItemListIndex>::get(collection_id).checked_add(1).unwrap();
 
-    #[allow(dead_code)]
-    fn init_refungible_token(collection_id: CollectionId, item: &ReFungibleItemType<T::CrossAccountId>) {
-        let current_index = <ItemListIndex>::get(collection_id)
-            .checked_add(1)
-            .unwrap();
+		Self::add_token_index(collection_id, current_index, owner).unwrap();
 
-        let value = item.owner.first().unwrap().fraction;
-        let owner = item.owner.first().unwrap().owner.clone();
+		<ItemListIndex>::insert(collection_id, current_index);
 
-        Self::add_token_index(collection_id, current_index, &owner).unwrap();
+		// Update balance
+		let new_balance = <Balance<T>>::get(collection_id, owner.as_sub())
+			.checked_add(item.value)
+			.unwrap();
+		<Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
+	}
 
-        <ItemListIndex>::insert(collection_id, current_index);
+	#[allow(dead_code)]
+	fn init_refungible_token(
+		collection_id: CollectionId,
+		item: &ReFungibleItemType<T::CrossAccountId>,
+	) {
+		let current_index = <ItemListIndex>::get(collection_id).checked_add(1).unwrap();
 
-        // Update balance
-        let new_balance = <Balance<T>>::get(collection_id, &owner.as_sub())
-            .checked_add(value)
-            .unwrap();
-        <Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
-    }
+		let value = item.owner.first().unwrap().fraction;
+		let owner = item.owner.first().unwrap().owner.clone();
 
-    fn add_token_index(collection_id: CollectionId, item_index: TokenId, owner: &T::CrossAccountId) -> DispatchResult {
-        // add to account limit
-        if <AccountItemCount<T>>::contains_key(owner.as_sub()) {
+		Self::add_token_index(collection_id, current_index, &owner).unwrap();
 
-            // bound Owned tokens by a single address
-            let count = <AccountItemCount<T>>::get(owner.as_sub());
-            ensure!(count < ChainLimit::get().account_token_ownership_limit, Error::<T>::AddressOwnershipLimitExceeded);
+		<ItemListIndex>::insert(collection_id, current_index);
 
-            <AccountItemCount<T>>::insert(owner.as_sub(), count
-                .checked_add(1)
-                .ok_or(Error::<T>::NumOverflow)?);
-        }
-        else {
-            <AccountItemCount<T>>::insert(owner.as_sub(), 1);
-        }
+		// Update balance
+		let new_balance = <Balance<T>>::get(collection_id, &owner.as_sub())
+			.checked_add(value)
+			.unwrap();
+		<Balance<T>>::insert(collection_id, owner.as_sub(), new_balance);
+	}
 
-        let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner.as_sub());
-        if list_exists {
-            let mut list = <AddressTokens<T>>::get(collection_id, owner.as_sub());
-            let item_contains = list.contains(&item_index.clone());
+	fn add_token_index(
+		collection_id: CollectionId,
+		item_index: TokenId,
+		owner: &T::CrossAccountId,
+	) -> DispatchResult {
+		// add to account limit
+		if <AccountItemCount<T>>::contains_key(owner.as_sub()) {
+			// bound Owned tokens by a single address
+			let count = <AccountItemCount<T>>::get(owner.as_sub());
+			ensure!(
+				count < ChainLimit::get().account_token_ownership_limit,
+				Error::<T>::AddressOwnershipLimitExceeded
+			);
 
-            if !item_contains {
-                list.push(item_index.clone());
-            }
+			<AccountItemCount<T>>::insert(
+				owner.as_sub(),
+				count.checked_add(1).ok_or(Error::<T>::NumOverflow)?,
+			);
+		} else {
+			<AccountItemCount<T>>::insert(owner.as_sub(), 1);
+		}
 
-            <AddressTokens<T>>::insert(collection_id, owner.as_sub(), list);
-        } else {
-            let mut itm = Vec::new();
-            itm.push(item_index.clone());
-            <AddressTokens<T>>::insert(collection_id, owner.as_sub(), itm);
-        }
+		let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner.as_sub());
+		if list_exists {
+			let mut list = <AddressTokens<T>>::get(collection_id, owner.as_sub());
+			let item_contains = list.contains(&item_index.clone());
 
-        Ok(())
-    }
+			if !item_contains {
+				list.push(item_index);
+			}
 
-    fn remove_token_index(
-        collection_id: CollectionId,
-        item_index: TokenId,
-        owner: &T::CrossAccountId,
-    ) -> DispatchResult {
+			<AddressTokens<T>>::insert(collection_id, owner.as_sub(), list);
+		} else {
+			let itm = vec![item_index];
+			<AddressTokens<T>>::insert(collection_id, owner.as_sub(), itm);
+		}
 
-        // update counter
-        <AccountItemCount<T>>::insert(owner.as_sub(), 
-            <AccountItemCount<T>>::get(owner.as_sub())
-            .checked_sub(1)
-            .ok_or(Error::<T>::NumOverflow)?);
+		Ok(())
+	}
 
+	fn remove_token_index(
+		collection_id: CollectionId,
+		item_index: TokenId,
+		owner: &T::CrossAccountId,
+	) -> DispatchResult {
+		// update counter
+		<AccountItemCount<T>>::insert(
+			owner.as_sub(),
+			<AccountItemCount<T>>::get(owner.as_sub())
+				.checked_sub(1)
+				.ok_or(Error::<T>::NumOverflow)?,
+		);
 
-        let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner.as_sub());
-        if list_exists {
-            let mut list = <AddressTokens<T>>::get(collection_id, owner.as_sub());
-            let item_contains = list.contains(&item_index.clone());
+		let list_exists = <AddressTokens<T>>::contains_key(collection_id, owner.as_sub());
+		if list_exists {
+			let mut list = <AddressTokens<T>>::get(collection_id, owner.as_sub());
+			let item_contains = list.contains(&item_index.clone());
 
-            if item_contains {
-                list.retain(|&item| item != item_index);
-                <AddressTokens<T>>::insert(collection_id, owner.as_sub(), list);
-            }
-        }
+			if item_contains {
+				list.retain(|&item| item != item_index);
+				<AddressTokens<T>>::insert(collection_id, owner.as_sub(), list);
+			}
+		}
 
-        Ok(())
-    }
+		Ok(())
+	}
 
-    fn move_token_index(
-        collection_id: CollectionId,
-        item_index: TokenId,
-        old_owner: &T::CrossAccountId,
-        new_owner: &T::CrossAccountId,
-    ) -> DispatchResult {
-        Self::remove_token_index(collection_id, item_index, old_owner)?;
-        Self::add_token_index(collection_id, item_index, new_owner)?;
+	fn move_token_index(
+		collection_id: CollectionId,
+		item_index: TokenId,
+		old_owner: &T::CrossAccountId,
+		new_owner: &T::CrossAccountId,
+	) -> DispatchResult {
+		Self::remove_token_index(collection_id, item_index, old_owner)?;
+		Self::add_token_index(collection_id, item_index, new_owner)?;
 
-        Ok(())
-    }
+		Ok(())
+	}
 }
 
 sp_api::decl_runtime_apis! {
-    pub trait NftApi {
-        /// Used for ethereum integration
-        fn eth_contract_code(account: H160) -> Option<Vec<u8>>;
-    }
-}
\ No newline at end of file
+	pub trait NftApi {
+		/// Used for ethereum integration
+		fn eth_contract_code(account: H160) -> Option<Vec<u8>>;
+	}
+}
modifiedpallets/nft/src/mock.rsdiffbeforeafterboth
--- a/pallets/nft/src/mock.rs
+++ b/pallets/nft/src/mock.rs
@@ -1,19 +1,21 @@
+#![allow(clippy::from_over_into)]
+
 use crate as pallet_template;
 use sp_core::H256;
-use frame_support::{ 
-	parameter_types,
-	weights::IdentityFee,
-};
+use frame_support::{parameter_types, weights::IdentityFee};
 use sp_runtime::{
-	traits::{BlakeTwo256, IdentityLookup}, 
-	testing::Header, 
+	traits::{BlakeTwo256, IdentityLookup},
+	testing::Header,
 	Perbill,
 };
-use pallet_transaction_payment::{ CurrencyAdapter};
+use pallet_transaction_payment::{CurrencyAdapter};
 use frame_system as system;
+use pallet_evm::AddressMapping;
+use crate::{EvmBackwardsAddressMapping, CrossAccountId};
+use codec::{Encode, Decode};
 
 type UncheckedExtrinsic = frame_system::mocking::MockUncheckedExtrinsic<Test>;
-type Block = frame_system::mocking::MockBlock<Test>; 
+type Block = frame_system::mocking::MockBlock<Test>;
 
 // Configure a mock runtime to test the pallet.
 frame_support::construct_runtime!(
@@ -22,9 +24,9 @@
 		NodeBlock = Block,
 		UncheckedExtrinsic = UncheckedExtrinsic,
 	{
-		System: frame_system::{Module, Call, Config, Storage, Event<T>},
-		TemplateModule: pallet_template::{Module, Call, Storage},
-		Balances: pallet_balances::{Module, Call, Storage},
+		System: frame_system::{Pallet, Call, Config, Storage, Event<T>},
+		TemplateModule: pallet_template::{Pallet, Call, Storage},
+		Balances: pallet_balances::{Pallet, Call, Storage},
 	}
 );
 
@@ -56,6 +58,7 @@
 	type OnKilledAccount = ();
 	type SystemWeightInfo = ();
 	type SS58Prefix = SS58Prefix;
+	type OnSetCode = ();
 }
 
 parameter_types! {
@@ -64,10 +67,10 @@
 }
 //frame_system::Module<Test>;
 impl pallet_balances::Config for Test {
-    type AccountStore = System;
-    type Balance = u64;
-    type DustRemoval = ();
-    type Event = ();
+	type AccountStore = System;
+	type Balance = u64;
+	type DustRemoval = ();
+	type Event = ();
 	type ExistentialDeposit = ExistentialDeposit;
 	type WeightInfo = ();
 	type MaxLocks = MaxLocks;
@@ -78,7 +81,7 @@
 }
 
 impl pallet_transaction_payment::Config for Test {
-	type OnChargeTransaction = CurrencyAdapter<pallet_balances::Module<Test>, ()>;
+	type OnChargeTransaction = CurrencyAdapter<pallet_balances::Pallet<Test>, ()>;
 	type TransactionByteFee = TransactionByteFee;
 	type WeightToFee = IdentityFee<u64>;
 	type FeeMultiplierUpdate = ();
@@ -94,27 +97,26 @@
 	type WeightInfo = ();
 }
 
-type Timestamp = pallet_timestamp::Module<Test>;
-type Randomness = pallet_randomness_collective_flip::Module<Test>;
+type Timestamp = pallet_timestamp::Pallet<Test>;
+type Randomness = pallet_randomness_collective_flip::Pallet<Test>;
 
 parameter_types! {
 	pub const TombstoneDeposit: u64 = 1;
 	pub const DepositPerContract: u64 = 1;
 	pub const DepositPerStorageByte: u64 = 1;
 	pub const DepositPerStorageItem: u64 = 1;
-	pub RentFraction: Perbill = Perbill::from_rational_approximation(1u32, 30 * 24 * 60 * 10);
+	pub RentFraction: Perbill = Perbill::from_rational(1u32, 30 * 24 * 60 * 10);
 	pub const SurchargeReward: u64 = 1;
 	pub const SignedClaimHandicap: u32 = 2;
-	pub const MaxDepth: u32 = 32;
-	pub const MaxValueSize: u32 = 16 * 1024;
 	pub DeletionWeightLimit: u64 = u64::MAX;//Perbill::from_percent(10);
 	pub DeletionQueueDepth: u32 = 10;
+	pub Schedule: pallet_contracts::Schedule<Test> = Default::default();
 }
 
 impl pallet_contracts::Config for Test {
 	type Time = Timestamp;
 	type Randomness = Randomness;
-	type Currency = pallet_balances::Module<Test>;
+	type Currency = pallet_balances::Pallet<Test>;
 	type Event = ();
 	type RentPayment = ();
 	type SignedClaimHandicap = SignedClaimHandicap;
@@ -125,29 +127,80 @@
 	type RentFraction = RentFraction;
 	type SurchargeReward = SurchargeReward;
 	type DeletionWeightLimit = DeletionWeightLimit;
-	type MaxDepth = MaxDepth;
 	type DeletionQueueDepth = DeletionQueueDepth;
-	type MaxValueSize = MaxValueSize;
 	type ChainExtension = ();
-	type MaxCodeSize = ();
 	type WeightPrice = ();
 	type WeightInfo = pallet_contracts::weights::SubstrateWeight<Self>;
+	type Schedule = Schedule;
+	type CallStack = [pallet_contracts::Frame<Self>; 31];
 }
 
 parameter_types! {
 	pub const CollectionCreationPrice: u32 = 0;
-    pub TreasuryAccountId: u64 = 1234;
+	pub TreasuryAccountId: u64 = 1234;
+	pub EthereumChainId: u32 = 1111;
 }
 
+pub struct TestEvmAddressMapping;
+impl AddressMapping<u64> for TestEvmAddressMapping {
+	fn into_account_id(_addr: sp_core::H160) -> u64 {
+		unimplemented!()
+	}
+}
+
+pub struct TestEvmBackwardsAddressMapping;
+impl EvmBackwardsAddressMapping<u64> for TestEvmBackwardsAddressMapping {
+	fn from_account_id(_account_id: u64) -> sp_core::H160 {
+		unimplemented!()
+	}
+}
+
+#[derive(Encode, Decode, Clone, PartialEq, Eq, PartialOrd, Ord, Debug)]
+pub struct TestCrossAccountId(u64, sp_core::H160);
+impl CrossAccountId<u64> for TestCrossAccountId {
+	fn from_sub(sub: u64) -> Self {
+		let mut eth = [0; 20];
+		eth[12..20].copy_from_slice(&sub.to_be_bytes());
+		Self(sub, sp_core::H160(eth))
+	}
+	fn as_sub(&self) -> &u64 {
+		&self.0
+	}
+	fn from_eth(_eth: sp_core::H160) -> Self {
+		unimplemented!()
+	}
+	fn as_eth(&self) -> &sp_core::H160 {
+		&self.1
+	}
+}
+
+pub struct TestEtheremTransactionSender;
+impl pallet_ethereum::EthereumTransactionSender for TestEtheremTransactionSender {
+	fn submit_logs_transaction(
+		_tx: pallet_ethereum::Transaction,
+		_logs: Vec<pallet_ethereum::Log>,
+	) -> Result<(), sp_runtime::DispatchError> {
+		Ok(())
+	}
+}
+
 impl pallet_template::Config for Test {
 	type Event = ();
 	type WeightInfo = ();
 	type CollectionCreationPrice = CollectionCreationPrice;
-    type Currency = pallet_balances::Module<Test>;
-    type TreasuryAccountId = TreasuryAccountId;
+	type Currency = pallet_balances::Pallet<Test>;
+	type TreasuryAccountId = TreasuryAccountId;
+	type EvmAddressMapping = TestEvmAddressMapping;
+	type EvmBackwardsAddressMapping = TestEvmBackwardsAddressMapping;
+	type CrossAccountId = TestCrossAccountId;
+	type EthereumChainId = EthereumChainId;
+	type EthereumTransactionSender = TestEtheremTransactionSender;
 }
 
 // Build genesis storage according to the mock runtime.
 pub fn new_test_ext() -> sp_io::TestExternalities {
-	system::GenesisConfig::default().build_storage::<Test>().unwrap().into()
-}
\ No newline at end of file
+	system::GenesisConfig::default()
+		.build_storage::<Test>()
+		.unwrap()
+		.into()
+}
modifiedpallets/nft/src/sponsorship.rsdiffbeforeafterboth
--- a/pallets/nft/src/sponsorship.rs
+++ b/pallets/nft/src/sponsorship.rs
@@ -1,4 +1,8 @@
-use crate::{Config, Call, CollectionById, CreateItemBasket, VariableMetaDataBasket, ReFungibleTransferBasket, FungibleTransferBasket, NftTransferBasket, ChainLimit, CreateItemData, CollectionMode};
+use crate::{
+	Config, Call, CollectionById, CreateItemBasket, VariableMetaDataBasket,
+	ReFungibleTransferBasket, FungibleTransferBasket, NftTransferBasket, ChainLimit,
+	CreateItemData, CollectionMode,
+};
 use core::marker::PhantomData;
 use up_sponsorship::SponsorshipHandler;
 use frame_support::{
@@ -6,7 +10,6 @@
 	storage::{StorageMap, StorageDoubleMap, StorageValue},
 };
 use nft_data_structs::{TokenId, CollectionId};
-use alloc::vec::Vec;
 
 pub struct NftSponsorshipHandler<T>(PhantomData<T>);
 impl<T: Config> NftSponsorshipHandler<T> {
@@ -15,7 +18,6 @@
 		collection_id: &CollectionId,
 		_properties: &CreateItemData,
 	) -> Option<T::AccountId> {
-	
 		let collection = CollectionById::<T>::get(collection_id)?;
 
 		// sponsor timeout
@@ -32,9 +34,8 @@
 		CreateItemBasket::<T>::insert((collection_id, who.clone()), block_number);
 
 		// check free create limit
-		if collection.limits.sponsored_data_size >= (_properties.len() as u32) {
-			collection.sponsorship.sponsor()
-				.cloned()
+		if collection.limits.sponsored_data_size >= (_properties.data_size() as u32) {
+			collection.sponsorship.sponsor().cloned()
 		} else {
 			None
 		}
@@ -45,13 +46,11 @@
 		collection_id: &CollectionId,
 		item_id: &TokenId,
 	) -> Option<T::AccountId> {
-
 		let collection = CollectionById::<T>::get(collection_id)?;
 		let limits = ChainLimit::get();
 
 		let mut sponsor_transfer = false;
 		if collection.sponsorship.confirmed() {
-
 			let collection_limits = collection.limits.clone();
 			let collection_mode = collection.mode.clone();
 
@@ -59,7 +58,6 @@
 			let block_number = <frame_system::Pallet<T>>::block_number() as T::BlockNumber;
 			sponsor_transfer = match collection_mode {
 				CollectionMode::NFT => {
-
 					// get correct limit
 					let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {
 						collection_limits.sponsor_transfer_timeout
@@ -82,7 +80,6 @@
 					sponsored
 				}
 				CollectionMode::Fungible(_) => {
-
 					// get correct limit
 					let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {
 						collection_limits.sponsor_transfer_timeout
@@ -106,7 +103,6 @@
 					sponsored
 				}
 				CollectionMode::ReFungible => {
-
 					// get correct limit
 					let limit: u32 = if collection_limits.sponsor_transfer_timeout > 0 {
 						collection_limits.sponsor_transfer_timeout
@@ -116,7 +112,8 @@
 
 					let mut sponsored = true;
 					if ReFungibleTransferBasket::<T>::contains_key(collection_id, item_id) {
-						let last_tx_block = ReFungibleTransferBasket::<T>::get(collection_id, item_id);
+						let last_tx_block =
+							ReFungibleTransferBasket::<T>::get(collection_id, item_id);
 						let limit_time = last_tx_block + limit.into();
 						if block_number <= limit_time {
 							sponsored = false;
@@ -128,32 +125,27 @@
 
 					sponsored
 				}
-				_ => {
-					false
-				},
+				_ => false,
 			};
 		}
 
 		if !sponsor_transfer {
 			None
 		} else {
-			collection.sponsorship.sponsor()
-				.cloned()
+			collection.sponsorship.sponsor().cloned()
 		}
 	}
-	
+
 	pub fn withdraw_set_variable_meta_data(
 		collection_id: &CollectionId,
 		item_id: &TokenId,
-		data: &Vec<u8>,
+		data: &[u8],
 	) -> Option<T::AccountId> {
-
 		let mut sponsor_metadata_changes = false;
 
 		let collection = CollectionById::<T>::get(collection_id)?;
 
-		if
-			collection.sponsorship.confirmed() &&
+		if collection.sponsorship.confirmed() &&
 			// Can't sponsor fungible collection, this tx will be rejected
 			// as invalid
 			!matches!(collection.mode, CollectionMode::Fungible(_)) &&
@@ -164,7 +156,7 @@
 
 				if VariableMetaDataBasket::<T>::get(collection_id, item_id)
 					.map(|last_block| block_number - last_block > rate_limit)
-					.unwrap_or(true) 
+					.unwrap_or(true)
 				{
 					sponsor_metadata_changes = true;
 					VariableMetaDataBasket::<T>::insert(collection_id, item_id, block_number);
@@ -177,27 +169,26 @@
 		} else {
 			collection.sponsorship.sponsor().cloned()
 		}
-
 	}
 }
 
 impl<T, C> SponsorshipHandler<T::AccountId, C> for NftSponsorshipHandler<T>
-where 
-    T: Config,
-    C: IsSubType<Call<T>>
+where
+	T: Config,
+	C: IsSubType<Call<T>>,
 {
-    fn get_sponsor(who: &T::AccountId, call: &C) -> Option<T::AccountId> {
-        match IsSubType::<Call<T>>::is_sub_type(call)? {
-            Call::create_item(collection_id, _owner, _properties) => {
-                Self::withdraw_create_item(who, collection_id, &_properties)
-            },
-            Call::transfer(_new_owner, collection_id, item_id, _value) => {
-                Self::withdraw_transfer(who, collection_id, item_id)
-            },
-            Call::set_variable_meta_data(collection_id, item_id, data) => {
-                Self::withdraw_set_variable_meta_data(collection_id, item_id, &data)
-			},
+	fn get_sponsor(who: &T::AccountId, call: &C) -> Option<T::AccountId> {
+		match IsSubType::<Call<T>>::is_sub_type(call)? {
+			Call::create_item(collection_id, _owner, properties) => {
+				Self::withdraw_create_item(who, collection_id, properties)
+			}
+			Call::transfer(_new_owner, collection_id, item_id, _value) => {
+				Self::withdraw_transfer(who, collection_id, item_id)
+			}
+			Call::set_variable_meta_data(collection_id, item_id, data) => {
+				Self::withdraw_set_variable_meta_data(collection_id, item_id, data)
+			}
 			_ => None,
-        }
-    }
-}
\ No newline at end of file
+		}
+	}
+}
modifiedpallets/nft/src/tests.rsdiffbeforeafterboth
before · pallets/nft/src/tests.rs
1// Tests to be written here2use super::*;3use crate::mock::*;4use crate::{AccessMode, CollectionMode,5    Ownership, ChainLimits, CreateItemData, CreateNftData, CreateFungibleData, CreateReFungibleData,6    CollectionId, TokenId, MAX_DECIMAL_POINTS};7use frame_support::{assert_noop, assert_ok};8use frame_system::{ RawOrigin };910fn default_collection_numbers_limit() -> u32 {11    1012}1314fn default_limits() {15    assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits {16            collection_numbers_limit: default_collection_numbers_limit(),17            account_token_ownership_limit: 10,18            collections_admins_limit: 5,19            custom_data_limit: 2048,20            nft_sponsor_transfer_timeout: 15,21            fungible_sponsor_transfer_timeout: 15,22            refungible_sponsor_transfer_timeout: 15,23            const_on_chain_schema_limit: 1024,24            offchain_schema_limit: 1024,25            variable_on_chain_schema_limit: 1024,26        }));27}2829fn default_nft_data() -> CreateNftData {30    CreateNftData { const_data: vec![1, 2, 3], variable_data: vec![3, 2, 1] }31}3233fn default_fungible_data () -> CreateFungibleData {34    CreateFungibleData { value: 5 }35}3637fn default_re_fungible_data () -> CreateReFungibleData {38    CreateReFungibleData { const_data: vec![1, 2, 3], variable_data: vec![3, 2, 1], pieces: 1023 }39}4041fn create_test_collection_for_owner(mode: &CollectionMode, owner: u64, id: CollectionId) -> CollectionId {42    let col_name1: Vec<u16> = "Test1\0".encode_utf16().collect::<Vec<u16>>();43    let col_desc1: Vec<u16> = "TestDescription1\0".encode_utf16().collect::<Vec<u16>>();44    let token_prefix1: Vec<u8> = b"token_prefix1\0".to_vec();4546    let origin1 = Origin::signed(owner);47    assert_ok!(TemplateModule::create_collection(48            origin1.clone(),49            col_name1.clone(),50            col_desc1.clone(),51            token_prefix1.clone(),52            mode.clone()53        ));5455    let saved_col_name: Vec<u16> = "Test1\0".encode_utf16().collect::<Vec<u16>>();56    let saved_description: Vec<u16> = "TestDescription1\0".encode_utf16().collect::<Vec<u16>>();57    let saved_prefix: Vec<u8> = b"token_prefix1\0".to_vec();58    assert_eq!(TemplateModule::collection_id(id).unwrap().owner, owner);59    assert_eq!(TemplateModule::collection_id(id).unwrap().name, saved_col_name);60    assert_eq!(TemplateModule::collection_id(id).unwrap().mode, *mode);61    assert_eq!(TemplateModule::collection_id(id).unwrap().description, saved_description);62    assert_eq!(TemplateModule::collection_id(id).unwrap().token_prefix, saved_prefix);63    id64}6566fn create_test_collection(mode: &CollectionMode, id: CollectionId) -> CollectionId {67    create_test_collection_for_owner(&mode, 1, id)68}6970fn create_test_item(collection_id: CollectionId, data: &CreateItemData) {71    let origin1 = Origin::signed(1);72    assert_ok!(TemplateModule::create_item(73            origin1.clone(),74            collection_id,75            1,76            data.clone()77        ));7879}8081// Use cases tests region82// #region8384#[test]85fn set_version_schema() {86    new_test_ext().execute_with(|| {87        default_limits();88        let origin1 = Origin::signed(1);89        let collection_id = create_test_collection(&CollectionMode::NFT, 1);90        91        assert_ok!(TemplateModule::set_schema_version(origin1, collection_id, SchemaVersion::Unique));92        assert_eq!(TemplateModule::collection_id(collection_id).unwrap().schema_version, SchemaVersion::Unique);93    });94}9596#[test]97fn create_fungible_collection_fails_with_large_decimal_numbers() {98    new_test_ext().execute_with(|| {99        default_limits();100101        let col_name1: Vec<u16> = "Test1\0".encode_utf16().collect::<Vec<u16>>();102        let col_desc1: Vec<u16> = "TestDescription1\0".encode_utf16().collect::<Vec<u16>>();103        let token_prefix1: Vec<u8> = b"token_prefix1\0".to_vec();104105        let origin1 = Origin::signed(1);106        assert_noop!(TemplateModule::create_collection(107            origin1,108            col_name1,109            col_desc1,110            token_prefix1,111            CollectionMode::Fungible(MAX_DECIMAL_POINTS + 1)112        ), Error::<Test>::CollectionDecimalPointLimitExceeded);113    });    114}115116#[test]117fn create_nft_item() {118    new_test_ext().execute_with(|| {119        default_limits();120        let collection_id = create_test_collection(&CollectionMode::NFT, 1);121        122        let data = default_nft_data();123        create_test_item(collection_id, &data.clone().into());124        let item = TemplateModule::nft_item_id(collection_id, 1).unwrap();125        assert_eq!(item.const_data, data.const_data);126        assert_eq!(item.variable_data, data.variable_data);127    });128}129130// Use cases tests region131// #region132#[test]133fn create_nft_multiple_items() {134    new_test_ext().execute_with(|| {135        default_limits();136        137        create_test_collection(&CollectionMode::NFT, 1);138139        let origin1 = Origin::signed(1);140141        let items_data = vec![default_nft_data(), default_nft_data(), default_nft_data()];142143        assert_ok!(TemplateModule::create_multiple_items(144            origin1.clone(),145            1,146            1,147            items_data.clone().into_iter().map(|d| { d.into() }).collect()148        ));149        for (index, data) in items_data.iter().enumerate() {150            let item = TemplateModule::nft_item_id(1, (index + 1) as TokenId).unwrap(); 151            assert_eq!(item.const_data.to_vec(), data.const_data);152            assert_eq!(item.variable_data.to_vec(), data.variable_data);153        }154    });155}156157#[test]158fn create_refungible_item() {159    new_test_ext().execute_with(|| {160        default_limits();161        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);162163        let data = default_re_fungible_data();164        create_test_item(collection_id, &data.clone().into());165        let item = TemplateModule::refungible_item_id(collection_id, 1).unwrap();166        assert_eq!(167            item.const_data,168            data.const_data169        );170        assert_eq!(171            item.variable_data,172            data.variable_data173        );174        assert_eq!(175            item.owner[0],176            Ownership {177                owner: 1,178                fraction: 1023179            }180        );181    });182}183184#[test]185fn create_multiple_refungible_items() {186    new_test_ext().execute_with(|| {187        default_limits();188        189        create_test_collection(&CollectionMode::ReFungible, 1);190191        let origin1 = Origin::signed(1);192193        let items_data = vec![default_re_fungible_data(), default_re_fungible_data(), default_re_fungible_data()];194195        assert_ok!(TemplateModule::create_multiple_items(196            origin1.clone(),197            1,198            1,199            items_data.clone().into_iter().map(|d| { d.into() }).collect()200        ));201        for (index, data) in items_data.iter().enumerate() {202203            let item = TemplateModule::refungible_item_id(1, (index + 1) as TokenId).unwrap();204            assert_eq!(item.const_data.to_vec(), data.const_data);205            assert_eq!(item.variable_data.to_vec(), data.variable_data);206            assert_eq!(207                item.owner[0],208                Ownership {209                    owner: 1,210                    fraction: 1023211                }212            );213        }214    });215}216217#[test]218fn create_fungible_item() {219    new_test_ext().execute_with(|| {220        default_limits();221        222        let collection_id = create_test_collection(&CollectionMode::Fungible(3), 1);223224        let data = default_fungible_data();225        create_test_item(collection_id, &data.into());226227        assert_eq!(TemplateModule::fungible_item_id(collection_id, 1).value, 5);228    });229}230231//#[test]232// fn create_multiple_fungible_items() {233//     new_test_ext().execute_with(|| {234//         default_limits();235236//         create_test_collection(&CollectionMode::Fungible(3), 1);237238//         let origin1 = Origin::signed(1);239240//         let items_data = vec![default_fungible_data(), default_fungible_data(), default_fungible_data()];241242//         assert_ok!(TemplateModule::create_multiple_items(243//             origin1.clone(),244//             1,245//             1,246//             items_data.clone().into_iter().map(|d| { d.into() }).collect()247//         ));248        249//         for (index, _) in items_data.iter().enumerate() {250//             assert_eq!(TemplateModule::fungible_item_id(1, (index + 1) as TokenId).value, 5);251//         }252//         assert_eq!(TemplateModule::balance_count(1, 1), 3000);253//         assert_eq!(TemplateModule::address_tokens(1, 1), [1, 2, 3]);254//     });255// }256257#[test]258fn transfer_fungible_item() {259    new_test_ext().execute_with(|| {260        default_limits();261        262        let collection_id = create_test_collection(&CollectionMode::Fungible(3), 1);263264        let origin1 = Origin::signed(1);265        let origin2 = Origin::signed(2);266267        let data = default_fungible_data();268        create_test_item(collection_id, &data.into());269270        assert_eq!(TemplateModule::fungible_item_id(1, 1).value, 5);271        assert_eq!(TemplateModule::balance_count(1, 1), 5);272273        // change owner scenario274        assert_ok!(TemplateModule::transfer(origin1.clone(), 2, 1, 1, 5));275        assert_eq!(TemplateModule::fungible_item_id(1, 1).value, 0);276        assert_eq!(TemplateModule::balance_count(1, 1), 0);277        assert_eq!(TemplateModule::balance_count(1, 2), 5);278279        // split item scenario280        assert_ok!(TemplateModule::transfer(origin2.clone(), 3, 1, 1, 3));281        assert_eq!(TemplateModule::balance_count(1, 2), 2);282        assert_eq!(TemplateModule::balance_count(1, 3), 3);283284        // split item and new owner has account scenario285        assert_ok!(TemplateModule::transfer(origin2.clone(), 3, 1, 1, 1));286        assert_eq!(TemplateModule::fungible_item_id(1, 2).value, 1);287        assert_eq!(TemplateModule::fungible_item_id(1, 3).value, 4);288        assert_eq!(TemplateModule::balance_count(1, 2), 1);289        assert_eq!(TemplateModule::balance_count(1, 3), 4);290    });291}292293#[test]294fn transfer_refungible_item() {295    new_test_ext().execute_with(|| {296        default_limits();297        298        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);299300        let data = default_re_fungible_data();301        create_test_item(collection_id, &data.clone().into());302303        let origin1 = Origin::signed(1);304        let origin2 = Origin::signed(2);305        {306            let item = TemplateModule::refungible_item_id(collection_id, 1).unwrap();307            assert_eq!(308                item.const_data,309                data.const_data310            );311            assert_eq!(312                item.variable_data,313                data.variable_data314            );315            assert_eq!(316                item.owner[0],317                Ownership {318                    owner: 1,319                    fraction: 1023320                }321            );322        }323        assert_eq!(TemplateModule::balance_count(1, 1), 1023);324        assert_eq!(TemplateModule::address_tokens(1, 1), [1]);325326        // change owner scenario327        assert_ok!(TemplateModule::transfer(origin1.clone(), 2, 1, 1, 1023));328        assert_eq!(329            TemplateModule::refungible_item_id(1, 1).unwrap().owner[0],330            Ownership {331                owner: 2,332                fraction: 1023333            }334        );335        assert_eq!(TemplateModule::balance_count(1, 1), 0);336        assert_eq!(TemplateModule::balance_count(1, 2), 1023);337        // assert_eq!(TemplateModule::address_tokens(1, 1), []);338        assert_eq!(TemplateModule::address_tokens(1, 2), [1]);339340        // split item scenario341        assert_ok!(TemplateModule::transfer(origin2.clone(), 3, 1, 1, 500));342        {343            let item = TemplateModule::refungible_item_id(1, 1).unwrap();344            assert_eq!(345                item.owner[0],346                Ownership {347                    owner: 2,348                    fraction: 523349                }350            );351            assert_eq!(352                item.owner[1],353                Ownership {354                    owner: 3,355                    fraction: 500356                }357            );358        }359        assert_eq!(TemplateModule::balance_count(1, 2), 523);360        assert_eq!(TemplateModule::balance_count(1, 3), 500);361        assert_eq!(TemplateModule::address_tokens(1, 2), [1]);362        assert_eq!(TemplateModule::address_tokens(1, 3), [1]);363364        // split item and new owner has account scenario365        assert_ok!(TemplateModule::transfer(origin2.clone(), 3, 1, 1, 200));366        {367            let item = TemplateModule::refungible_item_id(1, 1).unwrap();368            assert_eq!(369                item.owner[0],370                Ownership {371                    owner: 2,372                    fraction: 323373                }374            );375            assert_eq!(376                item.owner[1],377                Ownership {378                    owner: 3,379                    fraction: 700380                }381            );382        }383        assert_eq!(TemplateModule::balance_count(1, 2), 323);384        assert_eq!(TemplateModule::balance_count(1, 3), 700);385        assert_eq!(TemplateModule::address_tokens(1, 2), [1]);386        assert_eq!(TemplateModule::address_tokens(1, 3), [1]);387    });388}389390#[test]391fn transfer_nft_item() {392    new_test_ext().execute_with(|| {393        default_limits();394        395        let collection_id = create_test_collection(&CollectionMode::NFT, 1);396397        let data = default_nft_data();398        create_test_item(collection_id, &data.into());399        assert_eq!(TemplateModule::balance_count(1, 1), 1);400        assert_eq!(TemplateModule::address_tokens(1, 1), [1]);401402        let origin1 = Origin::signed(1);403        // default scenario404        assert_ok!(TemplateModule::transfer(origin1.clone(), 2, 1, 1, 1000));405        assert_eq!(TemplateModule::nft_item_id(1, 1).unwrap().owner, 2);406        assert_eq!(TemplateModule::balance_count(1, 1), 0);407        assert_eq!(TemplateModule::balance_count(1, 2), 1);408        // assert_eq!(TemplateModule::address_tokens(1, 1), []);409        assert_eq!(TemplateModule::address_tokens(1, 2), [1]);410    });411}412413#[test]414fn nft_approve_and_transfer_from() {415    new_test_ext().execute_with(|| {416        default_limits();417        418        let collection_id = create_test_collection(&CollectionMode::NFT, 1);419420        let data = default_nft_data();421        create_test_item(collection_id, &data.into());422423        let origin1 = Origin::signed(1);424        let origin2 = Origin::signed(2);425426        assert_eq!(TemplateModule::balance_count(1, 1), 1);427        assert_eq!(TemplateModule::address_tokens(1, 1), [1]);428429        // neg transfer430        assert_noop!(TemplateModule::transfer_from(431            origin2.clone(),432            1,433            2,434            1,435            1,436            1), Error::<Test>::NoPermission);437438        // do approve439        assert_ok!(TemplateModule::approve(origin1.clone(), 2, 1, 1, 5));440        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 5);441        assert_eq!(442            TemplateModule::approved(1, (1, 1, 2)),443            5444        );445446        assert_ok!(TemplateModule::transfer_from(447            origin2.clone(),448            1,449            3,450            1,451            1,452            1453        ));454        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 4);455    });456}457458#[test]459fn nft_approve_and_transfer_from_white_list() {460    new_test_ext().execute_with(|| {461        default_limits();462        463        let collection_id = create_test_collection(&CollectionMode::NFT, 1);464465        let origin1 = Origin::signed(1);466        let origin2 = Origin::signed(2);467468        let data = default_nft_data();469        create_test_item(collection_id, &data.clone().into());470471        assert_eq!(TemplateModule::nft_item_id(1, 1).unwrap().const_data, data.const_data);472        assert_eq!(TemplateModule::balance_count(1, 1), 1);473        assert_eq!(TemplateModule::address_tokens(1, 1), [1]);474475        assert_ok!(TemplateModule::set_mint_permission(476            origin1.clone(),477            1,478            true479        ));480        assert_ok!(TemplateModule::set_public_access_mode(481            origin1.clone(),482            1,483            AccessMode::WhiteList484        ));485        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 1));486        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 2));487        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 3));488489        // do approve490        assert_ok!(TemplateModule::approve(origin1.clone(), 2, 1, 1, 5));491        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 5);492        assert_ok!(TemplateModule::approve(origin1.clone(), 3, 1, 1, 5));493        assert_eq!(TemplateModule::approved(1, (1, 1, 3)), 5);494495        assert_ok!(TemplateModule::transfer_from(496            origin2.clone(),497            1,498            3,499            1,500            1,501            1502        ));503        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 4);504    });505}506507#[test]508fn refungible_approve_and_transfer_from() {509    new_test_ext().execute_with(|| {510        default_limits();511        512        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);513        514        let origin1 = Origin::signed(1);515        let origin2 = Origin::signed(2);516517        let data = default_re_fungible_data();518        create_test_item(collection_id, &data.into());519520        assert_eq!(TemplateModule::balance_count(1, 1), 1023);521        assert_eq!(TemplateModule::address_tokens(1, 1), [1]);522523        assert_ok!(TemplateModule::set_mint_permission(524            origin1.clone(),525            1,526            true527        ));528        assert_ok!(TemplateModule::set_public_access_mode(529            origin1.clone(),530            1,531            AccessMode::WhiteList532        ));533        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 1));534        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 2));535        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 3));536537        // do approve538        assert_ok!(TemplateModule::approve(origin1.clone(), 2, 1, 1, 1023));539        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 1023);540541        assert_ok!(TemplateModule::transfer_from(542            origin2.clone(),543            1,544            3,545            1,546            1,547            100548        ));549        assert_eq!(TemplateModule::balance_count(1, 1), 923);550        assert_eq!(TemplateModule::balance_count(1, 3), 100);551        assert_eq!(TemplateModule::address_tokens(1, 1), [1]);552        assert_eq!(TemplateModule::address_tokens(1, 3), [1]);553554        assert_eq!(555            TemplateModule::approved(1, (1, 1, 2)),556            923557        );558    });559}560561#[test]562fn fungible_approve_and_transfer_from() {563    new_test_ext().execute_with(|| {564        default_limits();565        566        let collection_id = create_test_collection(&CollectionMode::Fungible(3), 1);567        568        let data = default_fungible_data();569        create_test_item(collection_id, &data.into());570571        let origin1 = Origin::signed(1);572        let origin2 = Origin::signed(2);573574        assert_eq!(TemplateModule::balance_count(1, 1), 5);575576        assert_ok!(TemplateModule::set_mint_permission(577            origin1.clone(),578            1,579            true580        ));581        assert_ok!(TemplateModule::set_public_access_mode(582            origin1.clone(),583            1,584            AccessMode::WhiteList585        ));586        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 1));587        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 2));588        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 3));589590        // do approve591        assert_ok!(TemplateModule::approve(origin1.clone(), 2, 1, 1, 5));592        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 5);593        assert_ok!(TemplateModule::approve(origin1.clone(), 3, 1, 1, 5));594        assert_eq!(TemplateModule::approved(1, (1, 1, 3)), 5);595        assert_eq!(596            TemplateModule::approved(1, (1, 1, 2)),597            5598        );599600        assert_ok!(TemplateModule::transfer_from(601            origin2.clone(),602            1,603            3,604            1,605            1,606            4607        ));608        assert_eq!(TemplateModule::balance_count(1, 1), 1);609        assert_eq!(TemplateModule::balance_count(1, 3), 4);610611        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 1);612613        assert_noop!(TemplateModule::transfer_from(614            origin2.clone(),615            1,616            3,617            1,618            1,619            4620        ), Error::<Test>::NoPermission);621    });622}623624#[test]625fn change_collection_owner() {626    new_test_ext().execute_with(|| {627        default_limits();628        629        let collection_id = create_test_collection(&CollectionMode::NFT, 1);630        631        let origin1 = Origin::signed(1);632        assert_ok!(TemplateModule::change_collection_owner(633            origin1.clone(),634            collection_id,635            2636        ));637        assert_eq!(TemplateModule::collection_id(collection_id).unwrap().owner, 2);638    });639}640641#[test]642fn destroy_collection() {643    new_test_ext().execute_with(|| {644        default_limits();645        646        let collection_id = create_test_collection(&CollectionMode::NFT, 1);647        648        let origin1 = Origin::signed(1);649        assert_ok!(TemplateModule::destroy_collection(origin1.clone(), collection_id));650    });651}652653#[test]654fn burn_nft_item() {655    new_test_ext().execute_with(|| {656        default_limits();657        658        let collection_id = create_test_collection(&CollectionMode::NFT, 1);659660        let origin1 = Origin::signed(1);661        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 2));662        663        let data = default_nft_data();664        create_test_item(collection_id, &data.into());665666        // check balance (collection with id = 1, user id = 1)667        assert_eq!(TemplateModule::balance_count(1, 1), 1);668669        // burn item670        assert_ok!(TemplateModule::burn_item(origin1.clone(), 1, 1, 5));671        assert_noop!(672            TemplateModule::burn_item(origin1.clone(), 1, 1, 5),673            Error::<Test>::TokenNotFound674        );675676        assert_eq!(TemplateModule::balance_count(1, 1), 0);677    });678}679680#[test]681fn burn_fungible_item() {682    new_test_ext().execute_with(|| {683        default_limits();684        685        let collection_id = create_test_collection(&CollectionMode::Fungible(3), 1);686        687        let origin1 = Origin::signed(1);688        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 2));689        690        let data = default_fungible_data();691        create_test_item(collection_id, &data.into());692693        // check balance (collection with id = 1, user id = 1)694        assert_eq!(TemplateModule::balance_count(1, 1), 5);695696        // burn item697        assert_ok!(TemplateModule::burn_item(origin1.clone(), 1, 1, 5));698        assert_noop!(699            TemplateModule::burn_item(origin1.clone(), 1, 1, 5),700            Error::<Test>::TokenValueNotEnough701        );702703        assert_eq!(TemplateModule::balance_count(1, 1), 0);704    });705}706707#[test]708fn burn_refungible_item() {709    new_test_ext().execute_with(|| {710        default_limits();711        712        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);713        let origin1 = Origin::signed(1);714715        assert_ok!(TemplateModule::set_mint_permission(716            origin1.clone(),717            collection_id,718            true719        ));720        assert_ok!(TemplateModule::set_public_access_mode(721            origin1.clone(),722            collection_id,723            AccessMode::WhiteList724        ));725        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 1));726727        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), 1, 2));728        729        let data = default_re_fungible_data();730        create_test_item(collection_id, &data.into());731732        // check balance (collection with id = 1, user id = 2)733        assert_eq!(TemplateModule::balance_count(1, 1), 1023);734735        // burn item736        assert_ok!(TemplateModule::burn_item(origin1.clone(), 1, 1, 1023));737        assert_noop!(738            TemplateModule::burn_item(origin1.clone(), 1, 1, 1023),739            Error::<Test>::TokenNotFound740        );741742        assert_eq!(TemplateModule::balance_count(1, 1), 0);743    });744}745746#[test]747fn add_collection_admin() {748    new_test_ext().execute_with(|| {749        default_limits();750        751        let collection1_id = create_test_collection_for_owner(&CollectionMode::NFT, 1, 1);752        create_test_collection_for_owner(&CollectionMode::NFT, 2, 2);753        create_test_collection_for_owner(&CollectionMode::NFT, 3, 3);754        755        let origin1 = Origin::signed(1);756757        // collection admin758        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection1_id, 2));759        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection1_id, 3));760761        assert_eq!(TemplateModule::admin_list_collection(collection1_id).contains(&2), true);762        assert_eq!(TemplateModule::admin_list_collection(collection1_id).contains(&3), true);763    });764}765766#[test]767fn remove_collection_admin() {768    new_test_ext().execute_with(|| {769        default_limits();770        771        let collection1_id = create_test_collection_for_owner(&CollectionMode::NFT, 1, 1);772        create_test_collection_for_owner(&CollectionMode::NFT, 2, 2);773        create_test_collection_for_owner(&CollectionMode::NFT, 3, 3);774775        let origin1 = Origin::signed(1);776        let origin2 = Origin::signed(2);777778        // collection admin779        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection1_id, 2));780        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection1_id, 3));781782        assert_eq!(TemplateModule::admin_list_collection(1).contains(&2), true);783        assert_eq!(TemplateModule::admin_list_collection(1).contains(&3), true);784785        // remove admin786        assert_ok!(TemplateModule::remove_collection_admin(787            origin2.clone(),788            1,789            3790        ));791        assert_eq!(TemplateModule::admin_list_collection(1).contains(&3), false);792    });793}794795#[test]796fn balance_of() {797    new_test_ext().execute_with(|| {798        default_limits();799        800        let nft_collection_id = create_test_collection(&CollectionMode::NFT, 1);801        let fungible_collection_id = create_test_collection(&CollectionMode::Fungible(3), 2);802        let re_fungible_collection_id = create_test_collection(&CollectionMode::ReFungible, 3);803        804        // check balance before805        assert_eq!(TemplateModule::balance_count(nft_collection_id, 1), 0);806        assert_eq!(TemplateModule::balance_count(fungible_collection_id, 1), 0);807        assert_eq!(TemplateModule::balance_count(re_fungible_collection_id, 1), 0);808809        let nft_data = default_nft_data();810        create_test_item(nft_collection_id, &nft_data.into());811        812        let fungible_data = default_fungible_data();813        create_test_item(fungible_collection_id, &fungible_data.into());814        815        let re_fungible_data = default_re_fungible_data();816        create_test_item(re_fungible_collection_id, &re_fungible_data.into());817818        // check balance (collection with id = 1, user id = 1)819        assert_eq!(TemplateModule::balance_count(nft_collection_id, 1), 1);820        assert_eq!(TemplateModule::balance_count(fungible_collection_id, 1), 5);821        assert_eq!(TemplateModule::balance_count(re_fungible_collection_id, 1), 1023);822        assert_eq!(TemplateModule::nft_item_id(nft_collection_id, 1).unwrap().owner, 1);823        assert_eq!(TemplateModule::fungible_item_id(fungible_collection_id, 1).value, 5);824        assert_eq!(TemplateModule::refungible_item_id(re_fungible_collection_id, 1).unwrap().owner[0].owner, 1);825    });826}827828#[test]829fn approve() {830    new_test_ext().execute_with(|| {831        default_limits();832        833        let collection_id = create_test_collection(&CollectionMode::NFT, 1);834        835        let data = default_nft_data();836        create_test_item(collection_id, &data.into());837838        let origin1 = Origin::signed(1);839        840        // approve841        assert_ok!(TemplateModule::approve(origin1.clone(), 2, 1, 1, 1));842        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 1);843    });844}845846#[test]847fn transfer_from() {848    new_test_ext().execute_with(|| {849        default_limits();850        851        let collection_id = create_test_collection(&CollectionMode::NFT, 1);852        let origin1 = Origin::signed(1);853        let origin2 = Origin::signed(2);854855        let data = default_nft_data();856        create_test_item(collection_id, &data.into());857858        // approve859        assert_ok!(TemplateModule::approve(origin1.clone(), 2, 1, 1, 1));860        assert_eq!(TemplateModule::approved(1, (1, 1, 2)), 1);861862        assert_ok!(TemplateModule::set_mint_permission(863            origin1.clone(),864            1,865            true866        ));867        assert_ok!(TemplateModule::set_public_access_mode(868            origin1.clone(),869            1,870            AccessMode::WhiteList871        ));872        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 1));873        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 2));874        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 3));875876        assert_ok!(TemplateModule::transfer_from(877            origin2.clone(),878            1,879            2,880            1,881            1,882            1883        ));884885        // after transfer886        assert_eq!(TemplateModule::balance_count(1, 1), 0);887        assert_eq!(TemplateModule::balance_count(1, 2), 1);888    });889}890891// #endregion892893// Coverage tests region894// #region895896#[test]897fn owner_can_add_address_to_white_list() {898    new_test_ext().execute_with(|| {899        default_limits();900        901        let collection_id = create_test_collection(&CollectionMode::NFT, 1);902903        let origin1 = Origin::signed(1);904        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));905        assert_eq!(TemplateModule::white_list(collection_id, 2), true);906    });907}908909#[test]910fn admin_can_add_address_to_white_list() {911    new_test_ext().execute_with(|| {912        default_limits();913        914        let collection_id = create_test_collection(&CollectionMode::NFT, 1);915        let origin1 = Origin::signed(1);916        let origin2 = Origin::signed(2);917918        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 2));919        assert_ok!(TemplateModule::add_to_white_list(origin2.clone(), collection_id, 3));920        assert_eq!(TemplateModule::white_list(collection_id, 3), true);921    });922}923924#[test]925fn nonprivileged_user_cannot_add_address_to_white_list() {926    new_test_ext().execute_with(|| {927        default_limits();928        929        let collection_id = create_test_collection(&CollectionMode::NFT, 1);930931        let origin2 = Origin::signed(2);932        assert_noop!(933            TemplateModule::add_to_white_list(origin2.clone(), collection_id, 3),934            Error::<Test>::NoPermission935        );936    });937}938939#[test]940fn nobody_can_add_address_to_white_list_of_nonexisting_collection() {941    new_test_ext().execute_with(|| {942        default_limits();943944        let origin1 = Origin::signed(1);945946        assert_noop!(947            TemplateModule::add_to_white_list(origin1.clone(), 1, 2),948            Error::<Test>::CollectionNotFound949        );950    });951}952953#[test]954fn nobody_can_add_address_to_white_list_of_deleted_collection() {955    new_test_ext().execute_with(|| {956        default_limits();957        958        let collection_id = create_test_collection(&CollectionMode::NFT, 1);959960        let origin1 = Origin::signed(1);961        assert_ok!(TemplateModule::destroy_collection(origin1.clone(), collection_id));962        assert_noop!(963            TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2),964            Error::<Test>::CollectionNotFound965        );966    });967}968969// If address is already added to white list, nothing happens970#[test]971fn address_is_already_added_to_white_list() {972    new_test_ext().execute_with(|| {973        default_limits();974        975        let collection_id = create_test_collection(&CollectionMode::NFT, 1);976        let origin1 = Origin::signed(1);977        978        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));979        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));980        assert_eq!(TemplateModule::white_list(collection_id, 2), true);981    });982}983984#[test]985fn owner_can_remove_address_from_white_list() {986    new_test_ext().execute_with(|| {987        default_limits();988        989        let collection_id = create_test_collection(&CollectionMode::NFT, 1);990991        let origin1 = Origin::signed(1);992        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));993        assert_ok!(TemplateModule::remove_from_white_list(994            origin1.clone(),995            collection_id,996            2997        ));998        assert_eq!(TemplateModule::white_list(collection_id, 2), false);999    });1000}10011002#[test]1003fn admin_can_remove_address_from_white_list() {1004    new_test_ext().execute_with(|| {1005        default_limits();1006        1007        let collection_id = create_test_collection(&CollectionMode::NFT, 1);1008        let origin1 = Origin::signed(1);1009        let origin2 = Origin::signed(2);10101011        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 2));10121013        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 3));1014        assert_ok!(TemplateModule::remove_from_white_list(1015            origin2.clone(),1016            collection_id,1017            31018        ));1019        assert_eq!(TemplateModule::white_list(collection_id, 3), false);1020    });1021}10221023#[test]1024fn nonprivileged_user_cannot_remove_address_from_white_list() {1025    new_test_ext().execute_with(|| {1026        default_limits();1027        1028        let collection_id = create_test_collection(&CollectionMode::NFT, 1);1029        let origin1 = Origin::signed(1);1030        let origin2 = Origin::signed(2);10311032        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));1033        assert_noop!(1034            TemplateModule::remove_from_white_list(origin2.clone(), collection_id, 2),1035            Error::<Test>::NoPermission1036        );1037        assert_eq!(TemplateModule::white_list(collection_id, 2), true);1038    });1039}10401041#[test]1042fn nobody_can_remove_address_from_white_list_of_nonexisting_collection() {1043    new_test_ext().execute_with(|| {1044        default_limits();1045        let origin1 = Origin::signed(1);10461047        assert_noop!(1048            TemplateModule::remove_from_white_list(origin1.clone(), 1, 2),1049            Error::<Test>::CollectionNotFound1050        );1051    });1052}10531054#[test]1055fn nobody_can_remove_address_from_white_list_of_deleted_collection() {1056    new_test_ext().execute_with(|| {1057        default_limits();1058        1059        let collection_id = create_test_collection(&CollectionMode::NFT, 1);1060        let origin1 = Origin::signed(1);1061        let origin2 = Origin::signed(2);10621063        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));1064        assert_ok!(TemplateModule::destroy_collection(origin1.clone(), collection_id));1065        assert_noop!(1066            TemplateModule::remove_from_white_list(origin2.clone(), collection_id, 2),1067            Error::<Test>::CollectionNotFound1068        );1069        assert_eq!(TemplateModule::white_list(collection_id, 2), false);1070    });1071}10721073// If address is already removed from white list, nothing happens1074#[test]1075fn address_is_already_removed_from_white_list() {1076    new_test_ext().execute_with(|| {1077        default_limits();1078        1079        let collection_id = create_test_collection(&CollectionMode::NFT, 1);1080        let origin1 = Origin::signed(1);10811082        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));1083        assert_ok!(TemplateModule::remove_from_white_list(1084            origin1.clone(),1085            collection_id,1086            21087        ));1088        assert_ok!(TemplateModule::remove_from_white_list(1089            origin1.clone(),1090            collection_id,1091            21092        ));1093        assert_eq!(TemplateModule::white_list(collection_id, 2), false);1094    });1095}10961097// If Public Access mode is set to WhiteList, tokens can’t be transferred from a non-whitelisted address with transfer or transferFrom (2 tests)1098#[test]1099fn white_list_test_1() {1100    new_test_ext().execute_with(|| {1101        default_limits();1102        1103        let collection_id = create_test_collection(&CollectionMode::NFT, 1);11041105        let origin1 = Origin::signed(1);1106        1107        let data = default_nft_data();1108        create_test_item(collection_id, &data.into());11091110        assert_ok!(TemplateModule::set_public_access_mode(1111            origin1.clone(),1112            collection_id,1113            AccessMode::WhiteList1114        ));1115        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));11161117        assert_noop!(1118            TemplateModule::transfer(origin1.clone(), 3, 1, 1, 1),1119            Error::<Test>::AddresNotInWhiteList1120        );1121    });1122}11231124#[test]1125fn white_list_test_2() {1126    new_test_ext().execute_with(|| {1127        default_limits();1128        1129        let collection_id = create_test_collection(&CollectionMode::NFT, 1);1130        let origin1 = Origin::signed(1);1131        1132        let data = default_nft_data();1133        create_test_item(collection_id, &data.into());11341135        assert_ok!(TemplateModule::set_public_access_mode(1136            origin1.clone(),1137            collection_id,1138            AccessMode::WhiteList1139        ));1140        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 1));1141        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 2));11421143        // do approve1144        assert_ok!(TemplateModule::approve(origin1.clone(), 1, 1, 1, 1));1145        assert_eq!(TemplateModule::approved(1, (1, 1, 1)), 1);11461147        assert_ok!(TemplateModule::remove_from_white_list(1148            origin1.clone(),1149            1,1150            11151        ));11521153        assert_noop!(1154            TemplateModule::transfer_from(origin1.clone(), 1, 3, 1, 1, 1),1155            Error::<Test>::AddresNotInWhiteList1156        );1157    });1158}11591160// If Public Access mode is set to WhiteList, tokens can’t be transferred to a non-whitelisted address with transfer or transferFrom (2 tests)1161#[test]1162fn white_list_test_3() {1163    new_test_ext().execute_with(|| {1164        default_limits();1165        1166        let collection_id = create_test_collection(&CollectionMode::NFT, 1);11671168        let origin1 = Origin::signed(1);1169        1170        let data = default_nft_data();1171        create_test_item(collection_id, &data.into());11721173        assert_ok!(TemplateModule::set_public_access_mode(1174            origin1.clone(),1175            collection_id,1176            AccessMode::WhiteList1177        ));1178        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), 1, 1));11791180        assert_noop!(1181            TemplateModule::transfer(origin1.clone(), 3, 1, 1, 1),1182            Error::<Test>::AddresNotInWhiteList1183        );1184    });1185}11861187#[test]1188fn white_list_test_4() {1189    new_test_ext().execute_with(|| {1190        default_limits();1191        1192        let collection_id = create_test_collection(&CollectionMode::NFT, 1);11931194        let origin1 = Origin::signed(1);11951196        let data = default_nft_data();1197        create_test_item(collection_id, &data.into());11981199        assert_ok!(TemplateModule::set_public_access_mode(1200            origin1.clone(),1201            collection_id,1202            AccessMode::WhiteList1203        ));1204        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 1));1205        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));12061207        // do approve1208        assert_ok!(TemplateModule::approve(origin1.clone(), 1, 1, 1, 1));1209        assert_eq!(TemplateModule::approved(1, (1, 1, 1)), 1);12101211        assert_ok!(TemplateModule::remove_from_white_list(1212            origin1.clone(),1213            collection_id,1214            21215        ));12161217        assert_noop!(1218            TemplateModule::transfer_from(origin1.clone(), 1, 3, 1, 1, 1),1219            Error::<Test>::AddresNotInWhiteList1220        );1221    });1222}12231224// If Public Access mode is set to WhiteList, tokens can’t be destroyed by a non-whitelisted address (even if it owned them before enabling WhiteList mode)1225#[test]1226fn white_list_test_5() {1227    new_test_ext().execute_with(|| {1228        default_limits();1229        1230        let collection_id = create_test_collection(&CollectionMode::NFT, 1);12311232        let origin1 = Origin::signed(1);12331234        let data = default_nft_data();1235        create_test_item(collection_id, &data.into());12361237        assert_ok!(TemplateModule::set_public_access_mode(1238            origin1.clone(),1239            collection_id,1240            AccessMode::WhiteList1241        ));1242        assert_noop!(1243            TemplateModule::burn_item(origin1.clone(), 1, 1, 5),1244            Error::<Test>::AddresNotInWhiteList1245        );1246    });1247}12481249// If Public Access mode is set to WhiteList, token transfers can’t be Approved by a non-whitelisted address (see Approve method).1250#[test]1251fn white_list_test_6() {1252    new_test_ext().execute_with(|| {1253        default_limits();1254        1255        let collection_id = create_test_collection(&CollectionMode::NFT, 1);12561257        let origin1 = Origin::signed(1);12581259        let data = default_nft_data();1260        create_test_item(collection_id, &data.into());12611262        assert_ok!(TemplateModule::set_public_access_mode(1263            origin1.clone(),1264            collection_id,1265            AccessMode::WhiteList1266        ));12671268        // do approve1269        assert_noop!(1270            TemplateModule::approve(origin1.clone(), 1, 1, 1, 5),1271            Error::<Test>::AddresNotInWhiteList1272        );1273    });1274}12751276// If Public Access mode is set to WhiteList, tokens can be transferred from a whitelisted address with transfer or transferFrom (2 tests) and1277//          tokens can be transferred from a whitelisted address with transfer or transferFrom (2 tests)1278#[test]1279fn white_list_test_7() {1280    new_test_ext().execute_with(|| {1281        default_limits();1282        1283        let collection_id = create_test_collection(&CollectionMode::NFT, 1);12841285        let data = default_nft_data();1286        create_test_item(collection_id, &data.into());1287        1288        let origin1 = Origin::signed(1);12891290        assert_ok!(TemplateModule::set_public_access_mode(1291            origin1.clone(),1292            collection_id,1293            AccessMode::WhiteList1294        ));1295        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 1));1296        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));12971298        assert_ok!(TemplateModule::transfer(origin1.clone(), 2, 1, 1, 1));1299    });1300}13011302#[test]1303fn white_list_test_8() {1304    new_test_ext().execute_with(|| {1305        default_limits();1306        1307        let collection_id = create_test_collection(&CollectionMode::NFT, 1);13081309        let data = default_nft_data();1310        create_test_item(collection_id, &data.into());1311        1312        let origin1 = Origin::signed(1);13131314        assert_ok!(TemplateModule::set_public_access_mode(1315            origin1.clone(),1316            collection_id,1317            AccessMode::WhiteList1318        ));1319        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 1));1320        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));13211322        // do approve1323        assert_ok!(TemplateModule::approve(origin1.clone(), 1, 1, 1, 5));1324        assert_eq!(TemplateModule::approved(1, (1, 1, 1)), 5);13251326        assert_ok!(TemplateModule::transfer_from(1327            origin1.clone(),1328            1,1329            2,1330            1,1331            1,1332            11333        ));1334    });1335}13361337// If Public Access mode is set to WhiteList, and Mint Permission is set to false, tokens can be created by owner.1338#[test]1339fn white_list_test_9() {1340    new_test_ext().execute_with(|| {1341        default_limits();1342        1343        let collection_id = create_test_collection(&CollectionMode::NFT, 1);1344        let origin1 = Origin::signed(1);13451346        assert_ok!(TemplateModule::set_public_access_mode(1347            origin1.clone(),1348            collection_id,1349            AccessMode::WhiteList1350        ));1351        assert_ok!(TemplateModule::set_mint_permission(1352            origin1.clone(),1353            collection_id,1354            false1355        ));13561357        let data = default_nft_data();1358        create_test_item(collection_id, &data.into());1359    });1360}13611362// If Public Access mode is set to WhiteList, and Mint Permission is set to false, tokens can be created by admin.1363#[test]1364fn white_list_test_10() {1365    new_test_ext().execute_with(|| {1366        default_limits();1367        1368        let collection_id = create_test_collection(&CollectionMode::NFT, 1);13691370        let origin1 = Origin::signed(1);1371        let origin2 = Origin::signed(2);13721373        assert_ok!(TemplateModule::set_public_access_mode(1374            origin1.clone(),1375            collection_id,1376            AccessMode::WhiteList1377        ));1378        assert_ok!(TemplateModule::set_mint_permission(1379            origin1.clone(),1380            collection_id,1381            false1382        ));13831384        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 2));13851386        assert_ok!(TemplateModule::create_item(1387            origin2.clone(),1388            collection_id,1389            2,1390            default_nft_data().into()1391        ));1392    });1393}13941395// If Public Access mode is set to WhiteList, and Mint Permission is set to false, tokens cannot be created by non-privileged and white listed address.1396#[test]1397fn white_list_test_11() {1398    new_test_ext().execute_with(|| {1399        default_limits();1400        1401        let collection_id = create_test_collection(&CollectionMode::NFT, 1);14021403        let origin1 = Origin::signed(1);1404        let origin2 = Origin::signed(2);14051406        assert_ok!(TemplateModule::set_public_access_mode(1407            origin1.clone(),1408            collection_id,1409            AccessMode::WhiteList1410        ));1411        assert_ok!(TemplateModule::set_mint_permission(1412            origin1.clone(),1413            collection_id,1414            false1415        ));1416        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));14171418        assert_noop!(1419            TemplateModule::create_item(origin2.clone(), 1, 2, default_nft_data().into()),1420            Error::<Test>::PublicMintingNotAllowed1421        );1422    });1423}14241425// If Public Access mode is set to WhiteList, and Mint Permission is set to false, tokens cannot be created by non-privileged and non-white listed address.1426#[test]1427fn white_list_test_12() {1428    new_test_ext().execute_with(|| {1429        default_limits();1430        1431        let collection_id = create_test_collection(&CollectionMode::NFT, 1);14321433        let origin1 = Origin::signed(1);1434        let origin2 = Origin::signed(2);14351436        assert_ok!(TemplateModule::set_public_access_mode(1437            origin1.clone(),1438            collection_id,1439            AccessMode::WhiteList1440        ));1441        assert_ok!(TemplateModule::set_mint_permission(1442            origin1.clone(),1443            collection_id,1444            false1445        ));14461447        assert_noop!(1448            TemplateModule::create_item(origin2.clone(), 1, 2, default_nft_data().into()),1449            Error::<Test>::PublicMintingNotAllowed1450        );1451    });1452}14531454// If Public Access mode is set to WhiteList, and Mint Permission is set to true, tokens can be created by owner.1455#[test]1456fn white_list_test_13() {1457    new_test_ext().execute_with(|| {1458        default_limits();1459        1460        let collection_id = create_test_collection(&CollectionMode::NFT, 1);14611462        let origin1 = Origin::signed(1);14631464        assert_ok!(TemplateModule::set_public_access_mode(1465            origin1.clone(),1466            collection_id,1467            AccessMode::WhiteList1468        ));1469        assert_ok!(TemplateModule::set_mint_permission(1470            origin1.clone(),1471            collection_id,1472            true1473        ));14741475        let data = default_nft_data();1476        create_test_item(collection_id, &data.into());1477    });1478}14791480// If Public Access mode is set to WhiteList, and Mint Permission is set to true, tokens can be created by admin.1481#[test]1482fn white_list_test_14() {1483    new_test_ext().execute_with(|| {1484        default_limits();1485        1486        let collection_id = create_test_collection(&CollectionMode::NFT, 1);14871488        let origin1 = Origin::signed(1);1489        let origin2 = Origin::signed(2);14901491        assert_ok!(TemplateModule::set_public_access_mode(1492            origin1.clone(),1493            collection_id,1494            AccessMode::WhiteList1495        ));1496        assert_ok!(TemplateModule::set_mint_permission(1497            origin1.clone(),1498            collection_id,1499            true1500        ));15011502        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 2));15031504        assert_ok!(TemplateModule::create_item(1505            origin2.clone(),1506            1,1507            2,1508            default_nft_data().into()1509        ));1510    });1511}15121513// If Public Access mode is set to WhiteList, and Mint Permission is set to true, tokens cannot be created by non-privileged and non-white listed address.1514#[test]1515fn white_list_test_15() {1516    new_test_ext().execute_with(|| {1517        default_limits();1518        1519        let collection_id = create_test_collection(&CollectionMode::NFT, 1);15201521        let origin1 = Origin::signed(1);1522        let origin2 = Origin::signed(2);15231524        assert_ok!(TemplateModule::set_public_access_mode(1525            origin1.clone(),1526            collection_id,1527            AccessMode::WhiteList1528        ));1529        assert_ok!(TemplateModule::set_mint_permission(1530            origin1.clone(),1531            collection_id,1532            true1533        ));15341535        assert_noop!(1536            TemplateModule::create_item(origin2.clone(), 1, 2, default_nft_data().into()),1537            Error::<Test>::AddresNotInWhiteList1538        );1539    });1540}15411542// If Public Access mode is set to WhiteList, and Mint Permission is set to true, tokens can be created by non-privileged and white listed address.1543#[test]1544fn white_list_test_16() {1545    new_test_ext().execute_with(|| {1546        default_limits();1547        1548        let collection_id = create_test_collection(&CollectionMode::NFT, 1);15491550        let origin1 = Origin::signed(1);1551        let origin2 = Origin::signed(2);15521553        assert_ok!(TemplateModule::set_public_access_mode(1554            origin1.clone(),1555            collection_id,1556            AccessMode::WhiteList1557        ));1558        assert_ok!(TemplateModule::set_mint_permission(1559            origin1.clone(),1560            collection_id,1561            true1562        ));1563        assert_ok!(TemplateModule::add_to_white_list(origin1.clone(), collection_id, 2));15641565        assert_ok!(TemplateModule::create_item(1566            origin2.clone(),1567            1,1568            2,1569            default_nft_data().into()1570        ));1571    });1572}15731574// Total number of collections. Positive test1575#[test]1576fn total_number_collections_bound() {1577    new_test_ext().execute_with(|| {1578        default_limits();1579        1580        create_test_collection(&CollectionMode::NFT, 1);1581    });1582}15831584// Total number of collections. Negotive test1585#[test]1586fn total_number_collections_bound_neg() {1587    new_test_ext().execute_with(|| {1588        default_limits();15891590        let origin1 = Origin::signed(1);15911592        for i in 0..default_collection_numbers_limit() {1593            create_test_collection(&CollectionMode::NFT, i + 1);1594        }15951596        let col_name1: Vec<u16> = "Test1\0".encode_utf16().collect::<Vec<u16>>();1597        let col_desc1: Vec<u16> = "TestDescription1\0".encode_utf16().collect::<Vec<u16>>();1598        let token_prefix1: Vec<u8> = b"token_prefix1\0".to_vec();15991600        // 11-th collection in chain. Expects error1601        assert_noop!(TemplateModule::create_collection(1602            origin1.clone(),1603            col_name1.clone(),1604            col_desc1.clone(),1605            token_prefix1.clone(),1606            CollectionMode::NFT1607        ), Error::<Test>::TotalCollectionsLimitExceeded);1608    });1609}16101611// Owned tokens by a single address. Positive test1612#[test]1613fn owned_tokens_bound() {1614    new_test_ext().execute_with(|| {1615        default_limits();1616        1617        let collection_id = create_test_collection(&CollectionMode::NFT, 1);16181619        let data = default_nft_data();1620        create_test_item(collection_id, &data.clone().into());1621        create_test_item(collection_id, &data.into());1622    });1623}16241625// Owned tokens by a single address. Negotive test1626#[test]1627fn owned_tokens_bound_neg() {1628    new_test_ext().execute_with(|| {1629        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1630            collection_numbers_limit: 10,1631            account_token_ownership_limit: 1,1632            collections_admins_limit: 5,1633            custom_data_limit: 2048,1634            nft_sponsor_transfer_timeout: 15,1635            fungible_sponsor_transfer_timeout: 15,1636            refungible_sponsor_transfer_timeout: 15,1637            const_on_chain_schema_limit: 1024,1638            offchain_schema_limit: 1024,1639            variable_on_chain_schema_limit: 1024,1640        }));1641        1642        let collection_id = create_test_collection(&CollectionMode::NFT, 1);16431644        let origin1 = Origin::signed(1);1645        let data = default_nft_data();1646        create_test_item(collection_id, &data.clone().into());16471648        assert_noop!(TemplateModule::create_item(1649            origin1.clone(),1650            1,1651            1,1652            data.into()1653        ),  Error::<Test>::AddressOwnershipLimitExceeded);1654    });1655}16561657// Number of collection admins. Positive test1658#[test]1659fn collection_admins_bound() {1660    new_test_ext().execute_with(|| {1661        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1662            collection_numbers_limit: 10,1663            account_token_ownership_limit: 10,1664            collections_admins_limit: 2,1665            custom_data_limit: 2048,1666            nft_sponsor_transfer_timeout: 15,1667            fungible_sponsor_transfer_timeout: 15,1668            refungible_sponsor_transfer_timeout: 15,1669            const_on_chain_schema_limit: 1024,1670            offchain_schema_limit: 1024,1671            variable_on_chain_schema_limit: 1024,1672        }));1673        1674        let collection_id = create_test_collection(&CollectionMode::NFT, 1);16751676        let origin1 = Origin::signed(1);1677        1678        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 2));1679        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 3));1680    });1681}16821683// Number of collection admins. Negotive test1684#[test]1685fn collection_admins_bound_neg() {1686    new_test_ext().execute_with(|| {1687        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1688            collection_numbers_limit: 10,1689            account_token_ownership_limit: 1,1690            collections_admins_limit: 1,1691            custom_data_limit: 2048,1692            nft_sponsor_transfer_timeout: 15,1693            fungible_sponsor_transfer_timeout: 15,1694            refungible_sponsor_transfer_timeout: 15,1695            const_on_chain_schema_limit: 1024,1696            offchain_schema_limit: 1024,1697            variable_on_chain_schema_limit: 1024,1698        }));1699        1700        let collection_id = create_test_collection(&CollectionMode::NFT, 1);17011702        let origin1 = Origin::signed(1);17031704        assert_ok!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 2));1705        assert_noop!(TemplateModule::add_collection_admin(origin1.clone(), collection_id, 3), Error::<Test>::CollectionAdminsLimitExceeded);1706    });1707}17081709// NFT custom data size. Negative test const_data.1710#[test]1711fn custom_data_size_nft_const_data_bound_neg() {1712    new_test_ext().execute_with(|| {1713        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1714            collection_numbers_limit: 10,1715            account_token_ownership_limit: 10,1716            collections_admins_limit: 5,1717            custom_data_limit: 2,1718            nft_sponsor_transfer_timeout: 15,1719            fungible_sponsor_transfer_timeout: 15,1720            refungible_sponsor_transfer_timeout: 15,1721            const_on_chain_schema_limit: 1024,1722            offchain_schema_limit: 1024,1723            variable_on_chain_schema_limit: 1024,1724        }));1725        1726        let collection_id = create_test_collection(&CollectionMode::NFT, 1);17271728        let origin1 = Origin::signed(1);1729        let too_big_const_data = CreateItemData::NFT(CreateNftData{1730            const_data: vec![1, 2, 3, 4],1731            variable_data: vec![]1732        });17331734        assert_noop!(TemplateModule::create_item(1735            origin1.clone(),1736            collection_id,1737            1,1738            too_big_const_data1739        ), Error::<Test>::TokenConstDataLimitExceeded);1740    });1741}17421743// NFT custom data size. Negative test variable_data.1744#[test]1745fn custom_data_size_nft_variable_data_bound_neg() {1746    new_test_ext().execute_with(|| {1747        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1748            collection_numbers_limit: 10,1749            account_token_ownership_limit: 10,1750            collections_admins_limit: 5,1751            custom_data_limit: 2,1752            nft_sponsor_transfer_timeout: 15,1753            fungible_sponsor_transfer_timeout: 15,1754            refungible_sponsor_transfer_timeout: 15,1755            const_on_chain_schema_limit: 1024,1756            offchain_schema_limit: 1024,1757            variable_on_chain_schema_limit: 1024,1758        }));17591760        let collection_id = create_test_collection(&CollectionMode::NFT, 1);17611762        let origin1 = Origin::signed(1);1763        let too_big_const_data = CreateItemData::NFT(CreateNftData{1764            const_data: vec![],1765            variable_data: vec![1, 2, 3, 4]1766        });17671768        assert_noop!(TemplateModule::create_item(1769            origin1.clone(),1770            collection_id,1771            1,1772            too_big_const_data1773        ), Error::<Test>::TokenVariableDataLimitExceeded);1774    });1775}17761777// Re fungible custom data size. Negative test const_data.1778#[test]1779fn custom_data_size_re_fungible_const_data_bound_neg() {1780    new_test_ext().execute_with(|| {1781        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1782            collection_numbers_limit: 10,1783            account_token_ownership_limit: 10,1784            collections_admins_limit: 5,1785            custom_data_limit: 2,1786            nft_sponsor_transfer_timeout: 15,1787            fungible_sponsor_transfer_timeout: 15,1788            refungible_sponsor_transfer_timeout: 15,1789            const_on_chain_schema_limit: 1024,1790            offchain_schema_limit: 1024,1791            variable_on_chain_schema_limit: 1024,1792        }));17931794        let collection_id = create_test_collection(&CollectionMode::NFT, 1);17951796        let origin1 = Origin::signed(1);1797        let too_big_const_data = CreateItemData::NFT(CreateNftData{1798            const_data: vec![1, 2, 3, 4],1799            variable_data: vec![]1800        });18011802        assert_noop!(TemplateModule::create_item(1803            origin1.clone(),1804            collection_id,1805            1,1806            too_big_const_data1807        ), Error::<Test>::TokenConstDataLimitExceeded);1808    });1809}18101811// Re fungible custom data size. Negative test variable_data.1812#[test]1813fn custom_data_size_re_fungible_variable_data_bound_neg() {1814    new_test_ext().execute_with(|| {1815        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1816            collection_numbers_limit: 10,1817            account_token_ownership_limit: 10,1818            collections_admins_limit: 5,1819            custom_data_limit: 2,1820            nft_sponsor_transfer_timeout: 15,1821            fungible_sponsor_transfer_timeout: 15,1822            refungible_sponsor_transfer_timeout: 15,1823            const_on_chain_schema_limit: 1024,1824            offchain_schema_limit: 1024,1825            variable_on_chain_schema_limit: 1024,1826        }));18271828        let collection_id = create_test_collection(&CollectionMode::NFT, 1);18291830        let origin1 = Origin::signed(1);1831        let too_big_const_data = CreateItemData::NFT(CreateNftData{1832            const_data: vec![],1833            variable_data: vec![1, 2, 3, 4]1834        });18351836        assert_noop!(TemplateModule::create_item(1837            origin1.clone(),1838            collection_id,1839            1,1840            too_big_const_data1841        ), Error::<Test>::TokenVariableDataLimitExceeded);1842    });1843}1844// #endregion18451846#[test]1847fn set_const_on_chain_schema() {1848    new_test_ext().execute_with(|| {1849        default_limits();18501851        let collection_id = create_test_collection(&CollectionMode::NFT, 1);18521853        let origin1 = Origin::signed(1);1854        assert_ok!(TemplateModule::set_const_on_chain_schema(origin1, collection_id, b"test const on chain schema".to_vec()));18551856        assert_eq!(TemplateModule::collection_id(collection_id).unwrap().const_on_chain_schema, b"test const on chain schema".to_vec());1857        assert_eq!(TemplateModule::collection_id(collection_id).unwrap().variable_on_chain_schema, b"".to_vec());1858    });1859}18601861#[test]1862fn set_variable_on_chain_schema() {1863    new_test_ext().execute_with(|| {1864        default_limits();1865        1866        let collection_id = create_test_collection(&CollectionMode::NFT, 1);18671868        let origin1 = Origin::signed(1);1869        assert_ok!(TemplateModule::set_variable_on_chain_schema(origin1, collection_id, b"test variable on chain schema".to_vec()));18701871        assert_eq!(TemplateModule::collection_id(collection_id).unwrap().const_on_chain_schema, b"".to_vec());1872        assert_eq!(TemplateModule::collection_id(collection_id).unwrap().variable_on_chain_schema, b"test variable on chain schema".to_vec());1873    });1874}18751876#[test]1877fn set_variable_meta_data_on_nft_token_stores_variable_meta_data() {1878    new_test_ext().execute_with(|| {1879        default_limits();18801881        let collection_id = create_test_collection(&CollectionMode::NFT, 1);18821883        let origin1 = Origin::signed(1);1884        1885        let data = default_nft_data();1886        create_test_item(1, &data.into());1887        1888        let variable_data = b"test set_variable_meta_data method.".to_vec();1889        assert_ok!(TemplateModule::set_variable_meta_data(origin1, collection_id, 1, variable_data.clone()));18901891        assert_eq!(TemplateModule::nft_item_id(collection_id, 1).unwrap().variable_data, variable_data);1892    });1893}18941895#[test]1896fn set_variable_meta_data_on_re_fungible_token_stores_variable_meta_data() {1897    new_test_ext().execute_with(|| {1898        default_limits();18991900        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);19011902        let origin1 = Origin::signed(1);19031904        let data = default_re_fungible_data();1905        create_test_item(1, &data.into());19061907        let variable_data = b"test set_variable_meta_data method.".to_vec();1908        assert_ok!(TemplateModule::set_variable_meta_data(origin1, collection_id, 1, variable_data.clone()));19091910        assert_eq!(TemplateModule::refungible_item_id(collection_id, 1).unwrap().variable_data, variable_data);1911    });1912}191319141915#[test]1916fn set_variable_meta_data_on_fungible_token_fails() {1917    new_test_ext().execute_with(|| {1918        default_limits();19191920        let collection_id = create_test_collection(&CollectionMode::Fungible(3), 1);19211922        let origin1 = Origin::signed(1);19231924        let data = default_fungible_data();1925        create_test_item(1, &data.into());19261927        let variable_data = b"test set_variable_meta_data method.".to_vec();1928        assert_noop!(TemplateModule::set_variable_meta_data(origin1, collection_id, 1, variable_data.clone()), Error::<Test>::CantStoreMetadataInFungibleTokens);1929    });1930}19311932#[test]1933fn set_variable_meta_data_on_nft_token_fails_for_big_data() {1934    new_test_ext().execute_with(|| {1935        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1936            collection_numbers_limit: default_collection_numbers_limit(),1937            account_token_ownership_limit: 10,1938            collections_admins_limit: 5,1939            custom_data_limit: 10,1940            nft_sponsor_transfer_timeout: 15,1941            fungible_sponsor_transfer_timeout: 15,1942            refungible_sponsor_transfer_timeout: 15,1943            const_on_chain_schema_limit: 1024,1944            offchain_schema_limit: 1024,1945            variable_on_chain_schema_limit: 1024,1946        }));19471948        let collection_id = create_test_collection(&CollectionMode::NFT, 1);19491950        let origin1 = Origin::signed(1);19511952        let data = default_nft_data();1953        create_test_item(1, &data.into());19541955        let variable_data = b"test set_variable_meta_data method, bigger than limits.".to_vec();1956        assert_noop!(TemplateModule::set_variable_meta_data(origin1, collection_id, 1, variable_data), Error::<Test>::TokenVariableDataLimitExceeded);1957    });1958}19591960#[test]1961fn set_variable_meta_data_on_re_fungible_token_fails_for_big_data() {1962    new_test_ext().execute_with(|| {1963        assert_ok!(TemplateModule::set_chain_limits(RawOrigin::Root.into(), ChainLimits { 1964            collection_numbers_limit: default_collection_numbers_limit(),1965            account_token_ownership_limit: 10,1966            collections_admins_limit: 5,1967            custom_data_limit: 10,1968            nft_sponsor_transfer_timeout: 15,1969            fungible_sponsor_transfer_timeout: 15,1970            refungible_sponsor_transfer_timeout: 15,1971            const_on_chain_schema_limit: 1024,1972            offchain_schema_limit: 1024,1973            variable_on_chain_schema_limit: 1024,1974        }));197519761977        let collection_id = create_test_collection(&CollectionMode::ReFungible, 1);19781979        let origin1 = Origin::signed(1);19801981        let data = default_re_fungible_data();1982        create_test_item(1, &data.into());19831984        let variable_data = b"test set_variable_meta_data method, bigger than limits.".to_vec();1985        assert_noop!(TemplateModule::set_variable_meta_data(origin1, collection_id, 1, variable_data), Error::<Test>::TokenVariableDataLimitExceeded);1986    });1987}
modifiedpallets/scheduler/Cargo.tomldiffbeforeafterboth
--- a/pallets/scheduler/Cargo.toml
+++ b/pallets/scheduler/Cargo.toml
@@ -12,19 +12,19 @@
 [dependencies]
 serde = { version = "1.0.119", default-features = false }
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false }
-frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-runtime = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-std = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-io = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-frame-benchmarking = { default-features = false, version = '3.0.0', optional = true, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
+frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-runtime = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-std = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-io = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+frame-benchmarking = { default-features = false, version = '3.0.0', optional = true, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
 
 up-sponsorship = { default-features = false, path = "../../primitives/sponsorship", version = "0.1.0" }
 log = { version = "0.4.14", default-features = false }
 
 [dev-dependencies]
-sp-core = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-substrate-test-utils = { version = "3.0.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
+sp-core = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+substrate-test-utils = { version = "3.0.0", git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
 
 [features]
 default = ["std"]
modifiedpallets/scheduler/src/benchmarking.rsdiffbeforeafterboth
--- a/pallets/scheduler/src/benchmarking.rs
+++ b/pallets/scheduler/src/benchmarking.rs
@@ -31,7 +31,7 @@
 const BLOCK_NUMBER: u32 = 2;
 
 // Add `n` named items to the schedule
-fn fill_schedule<T: Config> (when: T::BlockNumber, n: u32) -> Result<(), &'static str> {
+fn fill_schedule<T: Config>(when: T::BlockNumber, n: u32) -> Result<(), &'static str> {
 	// Essentially a no-op call.
 	let call = frame_system::Call::set_storage(vec![]);
 	for i in 0..n {
@@ -47,7 +47,10 @@
 			call.clone().into(),
 		)?;
 	}
-	ensure!(Agenda::<T>::get(when).len() == n as usize, "didn't fill schedule");
+	ensure!(
+		Agenda::<T>::get(when).len() == n as usize,
+		"didn't fill schedule"
+	);
 	Ok(())
 }
 
@@ -141,8 +144,4 @@
 	}
 }
 
-impl_benchmark_test_suite!(
-	Scheduler,
-	crate::tests::new_test_ext(),
-	crate::tests::Test,
-);
+impl_benchmark_test_suite!(Scheduler, crate::tests::new_test_ext(), crate::tests::Test,);
modifiedpallets/scheduler/src/lib.rsdiffbeforeafterboth
--- a/pallets/scheduler/src/lib.rs
+++ b/pallets/scheduler/src/lib.rs
@@ -50,17 +50,25 @@
 
 // Ensure we're `no_std` when compiling for Wasm.
 #![cfg_attr(not(feature = "std"), no_std)]
+#![allow(clippy::type_complexity, clippy::boxed_local, clippy::unused_unit)]
 
 mod benchmarking;
 pub mod weights;
 
 use sp_std::{prelude::*, marker::PhantomData, borrow::Borrow};
 use codec::{Encode, Decode, Codec};
-use sp_runtime::{RuntimeDebug, traits::{Zero, One, BadOrigin, Saturating}};
+use sp_runtime::{
+	RuntimeDebug,
+	traits::{Zero, One, BadOrigin, Saturating},
+};
 use frame_support::{
 	decl_module, decl_storage, decl_event, decl_error, IterableStorageMap,
 	dispatch::{Dispatchable, DispatchError, DispatchResult, Parameter},
-	traits::{Get, schedule::{self, DispatchTime}, OriginTrait, EnsureOrigin, IsType},
+	traits::{
+		Get,
+		schedule::{self, DispatchTime},
+		OriginTrait, EnsureOrigin, IsType,
+	},
 	weights::{GetDispatchInfo, Weight},
 };
 use frame_system::{self as system, ensure_signed};
@@ -72,22 +80,24 @@
 /// should be added to our implied traits list.
 ///
 /// `system::Config` should always be included in our implied traits.
-/// // 
-pub trait Config: system::Config
-{ 
-
+/// //
+pub trait Config: system::Config {
 	/// The overarching event type.
 	type Event: From<Event<Self>> + Into<<Self as system::Config>::Event>;
 
 	/// The aggregated origin which the dispatch will take.
 	type Origin: OriginTrait<PalletsOrigin = Self::PalletsOrigin>
-		+ From<Self::PalletsOrigin> + IsType<<Self as system::Config>::Origin>;
+		+ From<Self::PalletsOrigin>
+		+ IsType<<Self as system::Config>::Origin>;
 
 	/// The caller origin, overarching type of all pallets origins.
 	type PalletsOrigin: From<system::RawOrigin<Self::AccountId>> + Codec + Clone + Eq;
 
 	/// The aggregated call type.
-	type Call: Parameter + Dispatchable<Origin=<Self as Config>::Origin> + GetDispatchInfo + From<system::Call<Self>>;
+	type Call: Parameter
+		+ Dispatchable<Origin = <Self as Config>::Origin>
+		+ GetDispatchInfo
+		+ From<system::Call<Self>>;
 
 	/// The maximum weight that may be scheduled per block for any dispatchables of less priority
 	/// than `schedule::HARD_DEADLINE`.
@@ -141,7 +151,8 @@
 }
 
 /// The current version of Scheduled struct.
-pub type Scheduled<Call, BlockNumber, PalletsOrigin, AccountId> = ScheduledV2<Call, BlockNumber, PalletsOrigin, AccountId>;
+pub type Scheduled<Call, BlockNumber, PalletsOrigin, AccountId> =
+	ScheduledV2<Call, BlockNumber, PalletsOrigin, AccountId>;
 
 // A value placed in storage that represents the current version of the Scheduler storage.
 // This value is used by the `on_runtime_upgrade` logic to determine whether we run
@@ -160,7 +171,6 @@
 
 #[derive(Encode, Decode, Clone, PartialEq, Eq, RuntimeDebug)]
 pub struct CallSpec {
-
 	module: u32,
 	method: u32,
 }
@@ -172,7 +182,7 @@
 			=> Vec<Option<Scheduled<<T as Config>::Call, T::BlockNumber, T::PalletsOrigin, T::AccountId>>>;
 
 		pub SpecAgenda: map hasher(twox_64_concat) T::BlockNumber
-			=> Vec<Option<CallSpec>>;			
+			=> Vec<Option<CallSpec>>;
 
 		/// Lookup from identity to the block number and index of the task.
 		Lookup: map hasher(twox_64_concat) Vec<u8> => Option<TaskAddress<T::BlockNumber>>;
@@ -210,8 +220,8 @@
 
 decl_module! {
 	/// Scheduler module declaration.
-	pub struct Module<T: Config> for enum Call 
-	where 
+	pub struct Module<T: Config> for enum Call
+	where
 		origin: <T as system::Config>::Origin
 	{
 		type Error = Error<T>;
@@ -234,7 +244,7 @@
 			maybe_periodic: Option<schedule::Period<T::BlockNumber>>,
 			priority: schedule::Priority,
 			call: Box<<T as Config>::Call>,
-		) 
+		)
 		{
 			let origin = <T as Config>::Origin::from(origin);
 			Self::do_schedule(DispatchTime::At(when), maybe_periodic, priority, origin.caller().clone(), *call)?;
@@ -402,12 +412,12 @@
 						let origin = <<T as Config>::Origin as From<T::PalletsOrigin>>::from(
 							s.origin.clone()
 						).into();
-						let sender = ensure_signed(origin).unwrap_or(T::AccountId::default());
+						let sender = ensure_signed(origin).unwrap_or_default();
 						let who_will_pay = T::SponsorshipHandler::get_sponsor(&sender, &s.call).unwrap_or(sender);
 						let sponsor = T::PalletsOrigin::from(system::RawOrigin::Signed(who_will_pay));
 						let r = s.call.clone().dispatch(sponsor.into());
 						let maybe_id = s.maybe_id.clone();
-						if let &Some((period, count)) = &s.maybe_periodic {
+						if let Some((period, count)) = s.maybe_periodic {
 							if count > 1 {
 								s.maybe_periodic = Some((period, count - 1));
 							} else {
@@ -420,11 +430,9 @@
 								Lookup::<T>::insert(id, (next, next_index as u32));
 							}
 							Agenda::<T>::append(next, Some(s));
-						} else {
-							if let Some(ref id) = s.maybe_id {
-								Lookup::<T>::remove(id);
-							}
-						}
+						} else if let Some(ref id) = s.maybe_id {
+									  Lookup::<T>::remove(id);
+								  }
 						Self::deposit_event(RawEvent::Dispatched(
 							(now, index),
 							maybe_id,
@@ -454,20 +462,25 @@
 			StorageVersion::put(Releases::V2);
 
 			Agenda::<T>::translate::<
-				Vec<Option<ScheduledV1<<T as Config>::Call, T::BlockNumber>>>, _
-			>(|_, agenda| Some(
-				agenda
-					.into_iter()
-					.map(|schedule| schedule.map(|schedule| ScheduledV2 {
-						maybe_id: schedule.maybe_id,
-						priority: schedule.priority,
-						call: schedule.call,
-						maybe_periodic: schedule.maybe_periodic,
-						origin: system::RawOrigin::Root.into(),
-						_phantom: Default::default(),
-					}))
-					.collect::<Vec<_>>()
-			));
+				Vec<Option<ScheduledV1<<T as Config>::Call, T::BlockNumber>>>,
+				_,
+			>(|_, agenda| {
+				Some(
+					agenda
+						.into_iter()
+						.map(|schedule| {
+							schedule.map(|schedule| ScheduledV2 {
+								maybe_id: schedule.maybe_id,
+								priority: schedule.priority,
+								call: schedule.call,
+								maybe_periodic: schedule.maybe_periodic,
+								origin: system::RawOrigin::Root.into(),
+								_phantom: Default::default(),
+							})
+						})
+						.collect::<Vec<_>>(),
+				)
+			});
 
 			true
 		} else {
@@ -478,20 +491,25 @@
 	/// Helper to migrate scheduler when the pallet origin type has changed.
 	pub fn migrate_origin<OldOrigin: Into<T::PalletsOrigin> + codec::Decode>() {
 		Agenda::<T>::translate::<
-			Vec<Option<Scheduled<<T as Config>::Call, T::BlockNumber, OldOrigin, T::AccountId>>>, _
-		>(|_, agenda| Some(
-			agenda
-				.into_iter()
-				.map(|schedule| schedule.map(|schedule| Scheduled {
-					maybe_id: schedule.maybe_id,
-					priority: schedule.priority,
-					call: schedule.call,
-					maybe_periodic: schedule.maybe_periodic,
-					origin: schedule.origin.into(),
-					_phantom: Default::default(),
-				}))
-				.collect::<Vec<_>>()
-		));
+			Vec<Option<Scheduled<<T as Config>::Call, T::BlockNumber, OldOrigin, T::AccountId>>>,
+			_,
+		>(|_, agenda| {
+			Some(
+				agenda
+					.into_iter()
+					.map(|schedule| {
+						schedule.map(|schedule| Scheduled {
+							maybe_id: schedule.maybe_id,
+							priority: schedule.priority,
+							call: schedule.call,
+							maybe_periodic: schedule.maybe_periodic,
+							origin: schedule.origin.into(),
+							_phantom: Default::default(),
+						})
+					})
+					.collect::<Vec<_>>(),
+			)
+		});
 	}
 
 	fn resolve_time(when: DispatchTime<T::BlockNumber>) -> Result<T::BlockNumber, DispatchError> {
@@ -501,11 +519,11 @@
 			DispatchTime::At(x) => x,
 			// The current block has already completed it's scheduled tasks, so
 			// Schedule the task at lest one block after this current block.
-			DispatchTime::After(x) => now.saturating_add(x).saturating_add(One::one())
+			DispatchTime::After(x) => now.saturating_add(x).saturating_add(One::one()),
 		};
 
 		if when <= now {
-			return Err(Error::<T>::TargetBlockNumberInPast.into())
+			return Err(Error::<T>::TargetBlockNumberInPast.into());
 		}
 
 		Ok(when)
@@ -516,7 +534,7 @@
 		maybe_periodic: Option<schedule::Period<T::BlockNumber>>,
 		priority: schedule::Priority,
 		origin: T::PalletsOrigin,
-		call: <T as Config>::Call
+		call: <T as Config>::Call,
 	) -> Result<TaskAddress<T::BlockNumber>, DispatchError> {
 		let when = Self::resolve_time(when)?;
 
@@ -526,7 +544,12 @@
 			// Remove one from the number of repetitions since we will schedule one now.
 			.map(|(p, c)| (p, c - 1));
 		let s = Some(Scheduled {
-			maybe_id: None, priority, call, maybe_periodic, origin, _phantom: PhantomData::<T::AccountId>::default(),
+			maybe_id: None,
+			priority,
+			call,
+			maybe_periodic,
+			origin,
+			_phantom: PhantomData::<T::AccountId>::default(),
 		});
 		Agenda::<T>::append(when, s);
 		let index = Agenda::<T>::decode_len(when).unwrap_or(1) as u32 - 1;
@@ -544,22 +567,21 @@
 
 	fn do_cancel(
 		origin: Option<T::PalletsOrigin>,
-		(when, index): TaskAddress<T::BlockNumber>
+		(when, index): TaskAddress<T::BlockNumber>,
 	) -> Result<(), DispatchError> {
-		let scheduled = Agenda::<T>::try_mutate(
-			when,
-			|agenda| {
-				agenda.get_mut(index as usize)
-					.map_or(Ok(None), |s| -> Result<Option<Scheduled<_, _, _, _>>, DispatchError> {
-						if let (Some(ref o), Some(ref s)) = (origin, s.borrow()) {
-							if *o != s.origin {
-								return Err(BadOrigin.into());
-							}
-						};
-						Ok(s.take())
-					})
-			},
-		)?;
+		let scheduled = Agenda::<T>::try_mutate(when, |agenda| {
+			agenda.get_mut(index as usize).map_or(
+				Ok(None),
+				|s| -> Result<Option<Scheduled<_, _, _, _>>, DispatchError> {
+					if let (Some(ref o), Some(ref s)) = (origin, s.borrow()) {
+						if *o != s.origin {
+							return Err(BadOrigin.into());
+						}
+					};
+					Ok(s.take())
+				},
+			)
+		})?;
 		if let Some(s) = scheduled {
 			if let Some(id) = s.maybe_id {
 				Lookup::<T>::remove(id);
@@ -567,7 +589,7 @@
 			Self::deposit_event(RawEvent::Canceled(when, index));
 			Ok(())
 		} else {
-			Err(Error::<T>::NotFound)?
+			Err(Error::<T>::NotFound.into())
 		}
 	}
 
@@ -605,7 +627,7 @@
 	) -> Result<TaskAddress<T::BlockNumber>, DispatchError> {
 		// ensure id it is unique
 		if Lookup::<T>::contains_key(&id) {
-			return Err(Error::<T>::FailedToSchedule)?
+			return Err(Error::<T>::FailedToSchedule.into());
 		}
 
 		let when = Self::resolve_time(when)?;
@@ -617,7 +639,12 @@
 			.map(|(p, c)| (p, c - 1));
 
 		let s = Scheduled {
-			maybe_id: Some(id.clone()), priority, call, maybe_periodic, origin, _phantom: Default::default()
+			maybe_id: Some(id.clone()),
+			priority,
+			call,
+			maybe_periodic,
+			origin,
+			_phantom: Default::default(),
 		};
 		Agenda::<T>::append(when, Some(s));
 		let index = Agenda::<T>::decode_len(when).unwrap_or(1) as u32 - 1;
@@ -653,7 +680,7 @@
 				Self::deposit_event(RawEvent::Canceled(when, index));
 				Ok(())
 			} else {
-				Err(Error::<T>::NotFound)?
+				Err(Error::<T>::NotFound.into())
 			}
 		})
 	}
@@ -664,33 +691,38 @@
 	) -> Result<TaskAddress<T::BlockNumber>, DispatchError> {
 		let new_time = Self::resolve_time(new_time)?;
 
-		Lookup::<T>::try_mutate_exists(id, |lookup| -> Result<TaskAddress<T::BlockNumber>, DispatchError> {
-			let (when, index) = lookup.ok_or(Error::<T>::NotFound)?;
+		Lookup::<T>::try_mutate_exists(
+			id,
+			|lookup| -> Result<TaskAddress<T::BlockNumber>, DispatchError> {
+				let (when, index) = lookup.ok_or(Error::<T>::NotFound)?;
 
-			if new_time == when {
-				return Err(Error::<T>::RescheduleNoChange.into());
-			}
+				if new_time == when {
+					return Err(Error::<T>::RescheduleNoChange.into());
+				}
 
-			Agenda::<T>::try_mutate(when, |agenda| -> DispatchResult {
-				let task = agenda.get_mut(index as usize).ok_or(Error::<T>::NotFound)?;
-				let task = task.take().ok_or(Error::<T>::NotFound)?;
-				Agenda::<T>::append(new_time, Some(task));
+				Agenda::<T>::try_mutate(when, |agenda| -> DispatchResult {
+					let task = agenda.get_mut(index as usize).ok_or(Error::<T>::NotFound)?;
+					let task = task.take().ok_or(Error::<T>::NotFound)?;
+					Agenda::<T>::append(new_time, Some(task));
 
-				Ok(())
-			})?;
+					Ok(())
+				})?;
 
-			let new_index = Agenda::<T>::decode_len(new_time).unwrap_or(1) as u32 - 1;
-			Self::deposit_event(RawEvent::Canceled(when, index));
-			Self::deposit_event(RawEvent::Scheduled(new_time, new_index));
+				let new_index = Agenda::<T>::decode_len(new_time).unwrap_or(1) as u32 - 1;
+				Self::deposit_event(RawEvent::Canceled(when, index));
+				Self::deposit_event(RawEvent::Scheduled(new_time, new_index));
 
-			*lookup = Some((new_time, new_index));
+				*lookup = Some((new_time, new_index));
 
-			Ok((new_time, new_index))
-		})
+				Ok((new_time, new_index))
+			},
+		)
 	}
 }
 
-impl<T: Config> schedule::Anon<T::BlockNumber, <T as Config>::Call, T::PalletsOrigin> for Module<T> {
+impl<T: Config> schedule::Anon<T::BlockNumber, <T as Config>::Call, T::PalletsOrigin>
+	for Module<T>
+{
 	type Address = TaskAddress<T::BlockNumber>;
 
 	fn schedule(
@@ -698,7 +730,7 @@
 		maybe_periodic: Option<schedule::Period<T::BlockNumber>>,
 		priority: schedule::Priority,
 		origin: T::PalletsOrigin,
-		call: <T as Config>::Call
+		call: <T as Config>::Call,
 	) -> Result<Self::Address, DispatchError> {
 		Self::do_schedule(when, maybe_periodic, priority, origin, call)
 	}
@@ -715,11 +747,16 @@
 	}
 
 	fn next_dispatch_time((when, index): Self::Address) -> Result<T::BlockNumber, ()> {
-		Agenda::<T>::get(when).get(index as usize).ok_or(()).map(|_| when)
+		Agenda::<T>::get(when)
+			.get(index as usize)
+			.ok_or(())
+			.map(|_| when)
 	}
 }
 
-impl<T: Config> schedule::Named<T::BlockNumber, <T as Config>::Call, T::PalletsOrigin> for Module<T> {
+impl<T: Config> schedule::Named<T::BlockNumber, <T as Config>::Call, T::PalletsOrigin>
+	for Module<T>
+{
 	type Address = TaskAddress<T::BlockNumber>;
 
 	fn schedule_named(
@@ -745,17 +782,19 @@
 	}
 
 	fn next_dispatch_time(id: Vec<u8>) -> Result<T::BlockNumber, ()> {
-		Lookup::<T>::get(id).and_then(|(when, index)| Agenda::<T>::get(when).get(index as usize).map(|_| when)).ok_or(())
+		Lookup::<T>::get(id)
+			.and_then(|(when, index)| Agenda::<T>::get(when).get(index as usize).map(|_| when))
+			.ok_or(())
 	}
 }
 
 #[cfg(test)]
+#[allow(clippy::from_over_into)]
 mod tests {
 	use super::*;
 
 	use frame_support::{
-		parameter_types, assert_ok, ord_parameter_types,
-		assert_noop, assert_err, Hashable,
+		parameter_types, assert_ok, ord_parameter_types, assert_noop, assert_err, Hashable,
 		traits::{OnInitialize, OnFinalize, Filter},
 		weights::constants::RocksDbWeight,
 	};
@@ -887,10 +926,13 @@
 		type ScheduleOrigin = EnsureOneOf<u64, EnsureRoot<u64>, EnsureSignedBy<One, u64>>;
 		type MaxScheduledPerBlock = MaxScheduledPerBlock;
 		type WeightInfo = ();
+		type SponsorshipHandler = ();
 	}
 
 	pub fn new_test_ext() -> sp_io::TestExternalities {
-		let t = system::GenesisConfig::default().build_storage::<Test>().unwrap();
+		let t = system::GenesisConfig::default()
+			.build_storage::<Test>()
+			.unwrap();
 		t.into()
 	}
 
@@ -910,8 +952,16 @@
 	fn basic_scheduling_works() {
 		new_test_ext().execute_with(|| {
 			let call = Call::Logger(logger::Call::log(42, 1000));
-			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(&call));
-			assert_ok!(Scheduler::do_schedule(DispatchTime::At(4), None, 127, root(), call));
+			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(
+				&call
+			));
+			assert_ok!(Scheduler::do_schedule(
+				DispatchTime::At(4),
+				None,
+				127,
+				root(),
+				call
+			));
 			run_to_block(3);
 			assert!(logger::log().is_empty());
 			run_to_block(4);
@@ -926,9 +976,17 @@
 		new_test_ext().execute_with(|| {
 			run_to_block(2);
 			let call = Call::Logger(logger::Call::log(42, 1000));
-			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(&call));
+			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(
+				&call
+			));
 			// This will schedule the call 3 blocks after the next block... so block 3 + 3 = 6
-			assert_ok!(Scheduler::do_schedule(DispatchTime::After(3), None, 127, root(), call));
+			assert_ok!(Scheduler::do_schedule(
+				DispatchTime::After(3),
+				None,
+				127,
+				root(),
+				call
+			));
 			run_to_block(5);
 			assert!(logger::log().is_empty());
 			run_to_block(6);
@@ -943,8 +1001,16 @@
 		new_test_ext().execute_with(|| {
 			run_to_block(2);
 			let call = Call::Logger(logger::Call::log(42, 1000));
-			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(&call));
-			assert_ok!(Scheduler::do_schedule(DispatchTime::After(0), None, 127, root(), call));
+			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(
+				&call
+			));
+			assert_ok!(Scheduler::do_schedule(
+				DispatchTime::After(0),
+				None,
+				127,
+				root(),
+				call
+			));
 			// Will trigger on the next block.
 			run_to_block(3);
 			assert_eq!(logger::log(), vec![(root(), 42u32)]);
@@ -958,7 +1024,11 @@
 		new_test_ext().execute_with(|| {
 			// at #4, every 3 blocks, 3 times.
 			assert_ok!(Scheduler::do_schedule(
-				DispatchTime::At(4), Some((3, 3)), 127, root(), Call::Logger(logger::Call::log(42, 1000))
+				DispatchTime::At(4),
+				Some((3, 3)),
+				127,
+				root(),
+				Call::Logger(logger::Call::log(42, 1000))
 			));
 			run_to_block(3);
 			assert!(logger::log().is_empty());
@@ -971,9 +1041,15 @@
 			run_to_block(9);
 			assert_eq!(logger::log(), vec![(root(), 42u32), (root(), 42u32)]);
 			run_to_block(10);
-			assert_eq!(logger::log(), vec![(root(), 42u32), (root(), 42u32), (root(), 42u32)]);
+			assert_eq!(
+				logger::log(),
+				vec![(root(), 42u32), (root(), 42u32), (root(), 42u32)]
+			);
 			run_to_block(100);
-			assert_eq!(logger::log(), vec![(root(), 42u32), (root(), 42u32), (root(), 42u32)]);
+			assert_eq!(
+				logger::log(),
+				vec![(root(), 42u32), (root(), 42u32), (root(), 42u32)]
+			);
 		});
 	}
 
@@ -981,15 +1057,26 @@
 	fn reschedule_works() {
 		new_test_ext().execute_with(|| {
 			let call = Call::Logger(logger::Call::log(42, 1000));
-			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(&call));
-			assert_eq!(Scheduler::do_schedule(DispatchTime::At(4), None, 127, root(), call).unwrap(), (4, 0));
+			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(
+				&call
+			));
+			assert_eq!(
+				Scheduler::do_schedule(DispatchTime::At(4), None, 127, root(), call).unwrap(),
+				(4, 0)
+			);
 
 			run_to_block(3);
 			assert!(logger::log().is_empty());
 
-			assert_eq!(Scheduler::do_reschedule((4, 0), DispatchTime::At(6)).unwrap(), (6, 0));
+			assert_eq!(
+				Scheduler::do_reschedule((4, 0), DispatchTime::At(6)).unwrap(),
+				(6, 0)
+			);
 
-			assert_noop!(Scheduler::do_reschedule((6, 0), DispatchTime::At(6)), Error::<Test>::RescheduleNoChange);
+			assert_noop!(
+				Scheduler::do_reschedule((6, 0), DispatchTime::At(6)),
+				Error::<Test>::RescheduleNoChange
+			);
 
 			run_to_block(4);
 			assert!(logger::log().is_empty());
@@ -1006,17 +1093,34 @@
 	fn reschedule_named_works() {
 		new_test_ext().execute_with(|| {
 			let call = Call::Logger(logger::Call::log(42, 1000));
-			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(&call));
-			assert_eq!(Scheduler::do_schedule_named(
-				1u32.encode(), DispatchTime::At(4), None, 127, root(), call
-			).unwrap(), (4, 0));
+			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(
+				&call
+			));
+			assert_eq!(
+				Scheduler::do_schedule_named(
+					1u32.encode(),
+					DispatchTime::At(4),
+					None,
+					127,
+					root(),
+					call
+				)
+				.unwrap(),
+				(4, 0)
+			);
 
 			run_to_block(3);
 			assert!(logger::log().is_empty());
 
-			assert_eq!(Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(6)).unwrap(), (6, 0));
+			assert_eq!(
+				Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(6)).unwrap(),
+				(6, 0)
+			);
 
-			assert_noop!(Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(6)), Error::<Test>::RescheduleNoChange);
+			assert_noop!(
+				Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(6)),
+				Error::<Test>::RescheduleNoChange
+			);
 
 			run_to_block(4);
 			assert!(logger::log().is_empty());
@@ -1033,16 +1137,33 @@
 	fn reschedule_named_perodic_works() {
 		new_test_ext().execute_with(|| {
 			let call = Call::Logger(logger::Call::log(42, 1000));
-			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(&call));
-			assert_eq!(Scheduler::do_schedule_named(
-				1u32.encode(), DispatchTime::At(4), Some((3, 3)), 127, root(), call
-			).unwrap(), (4, 0));
+			assert!(!<Test as frame_system::Config>::BaseCallFilter::filter(
+				&call
+			));
+			assert_eq!(
+				Scheduler::do_schedule_named(
+					1u32.encode(),
+					DispatchTime::At(4),
+					Some((3, 3)),
+					127,
+					root(),
+					call
+				)
+				.unwrap(),
+				(4, 0)
+			);
 
 			run_to_block(3);
 			assert!(logger::log().is_empty());
 
-			assert_eq!(Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(5)).unwrap(), (5, 0));
-			assert_eq!(Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(6)).unwrap(), (6, 0));
+			assert_eq!(
+				Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(5)).unwrap(),
+				(5, 0)
+			);
+			assert_eq!(
+				Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(6)).unwrap(),
+				(6, 0)
+			);
 
 			run_to_block(5);
 			assert!(logger::log().is_empty());
@@ -1050,7 +1171,10 @@
 			run_to_block(6);
 			assert_eq!(logger::log(), vec![(root(), 42u32)]);
 
-			assert_eq!(Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(10)).unwrap(), (10, 0));
+			assert_eq!(
+				Scheduler::do_reschedule_named(1u32.encode(), DispatchTime::At(10)).unwrap(),
+				(10, 0)
+			);
 
 			run_to_block(9);
 			assert_eq!(logger::log(), vec![(root(), 42u32)]);
@@ -1059,10 +1183,16 @@
 			assert_eq!(logger::log(), vec![(root(), 42u32), (root(), 42u32)]);
 
 			run_to_block(13);
-			assert_eq!(logger::log(), vec![(root(), 42u32), (root(), 42u32), (root(), 42u32)]);
+			assert_eq!(
+				logger::log(),
+				vec![(root(), 42u32), (root(), 42u32), (root(), 42u32)]
+			);
 
 			run_to_block(100);
-			assert_eq!(logger::log(), vec![(root(), 42u32), (root(), 42u32), (root(), 42u32)]);
+			assert_eq!(
+				logger::log(),
+				vec![(root(), 42u32), (root(), 42u32), (root(), 42u32)]
+			);
 		});
 	}
 
@@ -1071,11 +1201,22 @@
 		new_test_ext().execute_with(|| {
 			// at #4.
 			Scheduler::do_schedule_named(
-				1u32.encode(), DispatchTime::At(4), None, 127, root(), Call::Logger(logger::Call::log(69, 1000))
-			).unwrap();
+				1u32.encode(),
+				DispatchTime::At(4),
+				None,
+				127,
+				root(),
+				Call::Logger(logger::Call::log(69, 1000)),
+			)
+			.unwrap();
 			let i = Scheduler::do_schedule(
-				DispatchTime::At(4), None, 127, root(), Call::Logger(logger::Call::log(42, 1000))
-			).unwrap();
+				DispatchTime::At(4),
+				None,
+				127,
+				root(),
+				Call::Logger(logger::Call::log(42, 1000)),
+			)
+			.unwrap();
 			run_to_block(3);
 			assert!(logger::log().is_empty());
 			assert_ok!(Scheduler::do_cancel_named(None, 1u32.encode()));
@@ -1095,8 +1236,9 @@
 				Some((3, 3)),
 				127,
 				root(),
-				Call::Logger(logger::Call::log(42, 1000))
-			).unwrap();
+				Call::Logger(logger::Call::log(42, 1000)),
+			)
+			.unwrap();
 			// same id results in error.
 			assert!(Scheduler::do_schedule_named(
 				1u32.encode(),
@@ -1105,11 +1247,18 @@
 				127,
 				root(),
 				Call::Logger(logger::Call::log(69, 1000))
-			).is_err());
+			)
+			.is_err());
 			// different id is ok.
 			Scheduler::do_schedule_named(
-				2u32.encode(), DispatchTime::At(8), None, 127, root(), Call::Logger(logger::Call::log(69, 1000))
-			).unwrap();
+				2u32.encode(),
+				DispatchTime::At(8),
+				None,
+				127,
+				root(),
+				Call::Logger(logger::Call::log(69, 1000)),
+			)
+			.unwrap();
 			run_to_block(3);
 			assert!(logger::log().is_empty());
 			run_to_block(4);
@@ -1135,7 +1284,8 @@
 				DispatchTime::At(4),
 				None,
 				127,
-				root(), Call::Logger(logger::Call::log(69, MaximumSchedulerWeight::get() / 2))
+				root(),
+				Call::Logger(logger::Call::log(69, MaximumSchedulerWeight::get() / 2))
 			));
 			// 69 and 42 do not fit together
 			run_to_block(4);
@@ -1197,19 +1347,22 @@
 				DispatchTime::At(4),
 				None,
 				255,
-				root(), Call::Logger(logger::Call::log(42, MaximumSchedulerWeight::get() / 3))
+				root(),
+				Call::Logger(logger::Call::log(42, MaximumSchedulerWeight::get() / 3))
 			));
 			assert_ok!(Scheduler::do_schedule(
 				DispatchTime::At(4),
 				None,
 				127,
-				root(), Call::Logger(logger::Call::log(69, MaximumSchedulerWeight::get() / 2))
+				root(),
+				Call::Logger(logger::Call::log(69, MaximumSchedulerWeight::get() / 2))
 			));
 			assert_ok!(Scheduler::do_schedule(
 				DispatchTime::At(4),
 				None,
 				126,
-				root(), Call::Logger(logger::Call::log(2600, MaximumSchedulerWeight::get() / 2))
+				root(),
+				Call::Logger(logger::Call::log(2600, MaximumSchedulerWeight::get() / 2))
 			));
 
 			// 2600 does not fit with 69 or 42, but has higher priority, so will go through
@@ -1217,25 +1370,32 @@
 			assert_eq!(logger::log(), vec![(root(), 2600u32)]);
 			// 69 and 42 fit together
 			run_to_block(5);
-			assert_eq!(logger::log(), vec![(root(), 2600u32), (root(), 69u32), (root(), 42u32)]);
+			assert_eq!(
+				logger::log(),
+				vec![(root(), 2600u32), (root(), 69u32), (root(), 42u32)]
+			);
 		});
 	}
 
 	#[test]
 	fn on_initialize_weight_is_correct() {
 		new_test_ext().execute_with(|| {
-			let base_weight: Weight = <Test as frame_system::Config>::DbWeight::get().reads_writes(1, 2);
+			let base_weight: Weight =
+				<Test as frame_system::Config>::DbWeight::get().reads_writes(1, 2);
 			let base_multiplier = 0;
 			let named_multiplier = <Test as frame_system::Config>::DbWeight::get().writes(1);
-			let periodic_multiplier = <Test as frame_system::Config>::DbWeight::get().reads_writes(1, 1);
+			let periodic_multiplier =
+				<Test as frame_system::Config>::DbWeight::get().reads_writes(1, 1);
 
 			// Named
-			assert_ok!(
-				Scheduler::do_schedule_named(
-					1u32.encode(), DispatchTime::At(1), None, 255, root(),
-					Call::Logger(logger::Call::log(3, MaximumSchedulerWeight::get() / 3))
-				)
-			);
+			assert_ok!(Scheduler::do_schedule_named(
+				1u32.encode(),
+				DispatchTime::At(1),
+				None,
+				255,
+				root(),
+				Call::Logger(logger::Call::log(3, MaximumSchedulerWeight::get() / 3))
+			));
 			// Anon Periodic
 			assert_ok!(Scheduler::do_schedule(
 				DispatchTime::At(1),
@@ -1254,29 +1414,53 @@
 			));
 			// Named Periodic
 			assert_ok!(Scheduler::do_schedule_named(
-				2u32.encode(), DispatchTime::At(1), Some((1000, 3)), 126, root(),
-				Call::Logger(logger::Call::log(2600, MaximumSchedulerWeight::get() / 2)))
-			);
+				2u32.encode(),
+				DispatchTime::At(1),
+				Some((1000, 3)),
+				126,
+				root(),
+				Call::Logger(logger::Call::log(2600, MaximumSchedulerWeight::get() / 2))
+			));
 
 			// Will include the named periodic only
 			let actual_weight = Scheduler::on_initialize(1);
 			let call_weight = MaximumSchedulerWeight::get() / 2;
 			assert_eq!(
-				actual_weight, call_weight + base_weight + base_multiplier + named_multiplier + periodic_multiplier
+				actual_weight,
+				call_weight
+					+ base_weight + base_multiplier
+					+ named_multiplier + periodic_multiplier
 			);
 			assert_eq!(logger::log(), vec![(root(), 2600u32)]);
 
 			// Will include anon and anon periodic
 			let actual_weight = Scheduler::on_initialize(2);
 			let call_weight = MaximumSchedulerWeight::get() / 2 + MaximumSchedulerWeight::get() / 3;
-			assert_eq!(actual_weight, call_weight + base_weight + base_multiplier * 2 + periodic_multiplier);
-			assert_eq!(logger::log(), vec![(root(), 2600u32), (root(), 69u32), (root(), 42u32)]);
+			assert_eq!(
+				actual_weight,
+				call_weight + base_weight + base_multiplier * 2 + periodic_multiplier
+			);
+			assert_eq!(
+				logger::log(),
+				vec![(root(), 2600u32), (root(), 69u32), (root(), 42u32)]
+			);
 
 			// Will include named only
 			let actual_weight = Scheduler::on_initialize(3);
 			let call_weight = MaximumSchedulerWeight::get() / 3;
-			assert_eq!(actual_weight, call_weight + base_weight + base_multiplier + named_multiplier);
-			assert_eq!(logger::log(), vec![(root(), 2600u32), (root(), 69u32), (root(), 42u32), (root(), 3u32)]);
+			assert_eq!(
+				actual_weight,
+				call_weight + base_weight + base_multiplier + named_multiplier
+			);
+			assert_eq!(
+				logger::log(),
+				vec![
+					(root(), 2600u32),
+					(root(), 69u32),
+					(root(), 42u32),
+					(root(), 3u32)
+				]
+			);
 
 			// Will contain none
 			let actual_weight = Scheduler::on_initialize(4);
@@ -1289,7 +1473,14 @@
 		new_test_ext().execute_with(|| {
 			let call = Box::new(Call::Logger(logger::Call::log(69, 1000)));
 			let call2 = Box::new(Call::Logger(logger::Call::log(42, 1000)));
-			assert_ok!(Scheduler::schedule_named(Origin::root(), 1u32.encode(), 4, None, 127, call));
+			assert_ok!(Scheduler::schedule_named(
+				Origin::root(),
+				1u32.encode(),
+				4,
+				None,
+				127,
+				call
+			));
 			assert_ok!(Scheduler::schedule(Origin::root(), 4, None, 127, call2));
 			run_to_block(3);
 			// Scheduled calls are in the agenda.
@@ -1333,15 +1524,29 @@
 		new_test_ext().execute_with(|| {
 			let call = Box::new(Call::Logger(logger::Call::log(69, 1000)));
 			let call2 = Box::new(Call::Logger(logger::Call::log(42, 1000)));
-			assert_ok!(
-				Scheduler::schedule_named(system::RawOrigin::Signed(1).into(), 1u32.encode(), 4, None, 127, call)
-			);
-			assert_ok!(Scheduler::schedule(system::RawOrigin::Signed(1).into(), 4, None, 127, call2));
+			assert_ok!(Scheduler::schedule_named(
+				system::RawOrigin::Signed(1).into(),
+				1u32.encode(),
+				4,
+				None,
+				127,
+				call
+			));
+			assert_ok!(Scheduler::schedule(
+				system::RawOrigin::Signed(1).into(),
+				4,
+				None,
+				127,
+				call2
+			));
 			run_to_block(3);
 			// Scheduled calls are in the agenda.
 			assert_eq!(Agenda::<Test>::get(4).len(), 2);
 			assert!(logger::log().is_empty());
-			assert_ok!(Scheduler::cancel_named(system::RawOrigin::Signed(1).into(), 1u32.encode()));
+			assert_ok!(Scheduler::cancel_named(
+				system::RawOrigin::Signed(1).into(),
+				1u32.encode()
+			));
 			assert_ok!(Scheduler::cancel(system::RawOrigin::Signed(1).into(), 4, 1));
 			// Scheduled calls are made NONE, so should not effect state
 			run_to_block(100);
@@ -1355,10 +1560,20 @@
 			let call = Box::new(Call::Logger(logger::Call::log(69, 1000)));
 			let call2 = Box::new(Call::Logger(logger::Call::log(42, 1000)));
 			assert_noop!(
-				Scheduler::schedule_named(system::RawOrigin::Signed(2).into(), 1u32.encode(), 4, None, 127, call),
+				Scheduler::schedule_named(
+					system::RawOrigin::Signed(2).into(),
+					1u32.encode(),
+					4,
+					None,
+					127,
+					call
+				),
 				BadOrigin
 			);
-			assert_noop!(Scheduler::schedule(system::RawOrigin::Signed(2).into(), 4, None, 127, call2), BadOrigin);
+			assert_noop!(
+				Scheduler::schedule(system::RawOrigin::Signed(2).into(), 4, None, 127, call2),
+				BadOrigin
+			);
 		});
 	}
 
@@ -1367,22 +1582,48 @@
 		new_test_ext().execute_with(|| {
 			let call = Box::new(Call::Logger(logger::Call::log_without_filter(69, 1000)));
 			let call2 = Box::new(Call::Logger(logger::Call::log_without_filter(42, 1000)));
-			assert_ok!(
-				Scheduler::schedule_named(system::RawOrigin::Signed(1).into(), 1u32.encode(), 4, None, 127, call)
-			);
-			assert_ok!(Scheduler::schedule(system::RawOrigin::Signed(1).into(), 4, None, 127, call2));
+			assert_ok!(Scheduler::schedule_named(
+				system::RawOrigin::Signed(1).into(),
+				1u32.encode(),
+				4,
+				None,
+				127,
+				call
+			));
+			assert_ok!(Scheduler::schedule(
+				system::RawOrigin::Signed(1).into(),
+				4,
+				None,
+				127,
+				call2
+			));
 			run_to_block(3);
 			// Scheduled calls are in the agenda.
 			assert_eq!(Agenda::<Test>::get(4).len(), 2);
 			assert!(logger::log().is_empty());
-			assert_noop!(Scheduler::cancel_named(system::RawOrigin::Signed(2).into(), 1u32.encode()), BadOrigin);
-			assert_noop!(Scheduler::cancel(system::RawOrigin::Signed(2).into(), 4, 1), BadOrigin);
-			assert_noop!(Scheduler::cancel_named(system::RawOrigin::Root.into(), 1u32.encode()), BadOrigin);
-			assert_noop!(Scheduler::cancel(system::RawOrigin::Root.into(), 4, 1), BadOrigin);
+			assert_noop!(
+				Scheduler::cancel_named(system::RawOrigin::Signed(2).into(), 1u32.encode()),
+				BadOrigin
+			);
+			assert_noop!(
+				Scheduler::cancel(system::RawOrigin::Signed(2).into(), 4, 1),
+				BadOrigin
+			);
+			assert_noop!(
+				Scheduler::cancel_named(system::RawOrigin::Root.into(), 1u32.encode()),
+				BadOrigin
+			);
+			assert_noop!(
+				Scheduler::cancel(system::RawOrigin::Root.into(), 4, 1),
+				BadOrigin
+			);
 			run_to_block(5);
 			assert_eq!(
 				logger::log(),
-				vec![(system::RawOrigin::Signed(1).into(), 69u32), (system::RawOrigin::Signed(1).into(), 42u32)]
+				vec![
+					(system::RawOrigin::Signed(1).into(), 69u32),
+					(system::RawOrigin::Signed(1).into(), 42u32)
+				]
 			);
 		});
 	}
@@ -1407,85 +1648,84 @@
 						maybe_periodic: Some((456u64, 10)),
 					}),
 				];
-				frame_support::migration::put_storage_value(
-					b"Scheduler",
-					b"Agenda",
-					&k,
-					old,
-				);
+				frame_support::migration::put_storage_value(b"Scheduler", b"Agenda", &k, old);
 			}
 
 			assert_eq!(StorageVersion::get(), Releases::V1);
 
 			assert!(Scheduler::migrate_v1_to_t2());
 
-			assert_eq_uvec!(Agenda::<Test>::iter().collect::<Vec<_>>(), vec![
-				(
-					0,
-					vec![
-					Some(ScheduledV2 {
-						maybe_id: None,
-						priority: 10,
-						call: Call::Logger(logger::Call::log(96, 100)),
-						maybe_periodic: None,
-						origin: root(),
-						_phantom: PhantomData::<u64>::default(),
-					}),
-					None,
-					Some(ScheduledV2 {
-						maybe_id: Some(b"test".to_vec()),
-						priority: 123,
-						call: Call::Logger(logger::Call::log(69, 1000)),
-						maybe_periodic: Some((456u64, 10)),
-						origin: root(),
-						_phantom: PhantomData::<u64>::default(),
-					}),
-				]),
-				(
-					1,
-					vec![
-						Some(ScheduledV2 {
-							maybe_id: None,
-							priority: 11,
-							call: Call::Logger(logger::Call::log(96, 100)),
-							maybe_periodic: None,
-							origin: root(),
-							_phantom: PhantomData::<u64>::default(),
-						}),
-						None,
-						Some(ScheduledV2 {
-							maybe_id: Some(b"test".to_vec()),
-							priority: 123,
-							call: Call::Logger(logger::Call::log(69, 1000)),
-							maybe_periodic: Some((456u64, 10)),
-							origin: root(),
-							_phantom: PhantomData::<u64>::default(),
-						}),
-					]
-				),
-				(
-					2,
-					vec![
-						Some(ScheduledV2 {
-							maybe_id: None,
-							priority: 12,
-							call: Call::Logger(logger::Call::log(96, 100)),
-							maybe_periodic: None,
-							origin: root(),
-							_phantom: PhantomData::<u64>::default(),
-						}),
-						None,
-						Some(ScheduledV2 {
-							maybe_id: Some(b"test".to_vec()),
-							priority: 123,
-							call: Call::Logger(logger::Call::log(69, 1000)),
-							maybe_periodic: Some((456u64, 10)),
-							origin: root(),
-							_phantom: PhantomData::<u64>::default(),
-						}),
-					]
-				)
-			]);
+			assert_eq_uvec!(
+				Agenda::<Test>::iter().collect::<Vec<_>>(),
+				vec![
+					(
+						0,
+						vec![
+							Some(ScheduledV2 {
+								maybe_id: None,
+								priority: 10,
+								call: Call::Logger(logger::Call::log(96, 100)),
+								maybe_periodic: None,
+								origin: root(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+							None,
+							Some(ScheduledV2 {
+								maybe_id: Some(b"test".to_vec()),
+								priority: 123,
+								call: Call::Logger(logger::Call::log(69, 1000)),
+								maybe_periodic: Some((456u64, 10)),
+								origin: root(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+						]
+					),
+					(
+						1,
+						vec![
+							Some(ScheduledV2 {
+								maybe_id: None,
+								priority: 11,
+								call: Call::Logger(logger::Call::log(96, 100)),
+								maybe_periodic: None,
+								origin: root(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+							None,
+							Some(ScheduledV2 {
+								maybe_id: Some(b"test".to_vec()),
+								priority: 123,
+								call: Call::Logger(logger::Call::log(69, 1000)),
+								maybe_periodic: Some((456u64, 10)),
+								origin: root(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+						]
+					),
+					(
+						2,
+						vec![
+							Some(ScheduledV2 {
+								maybe_id: None,
+								priority: 12,
+								call: Call::Logger(logger::Call::log(96, 100)),
+								maybe_periodic: None,
+								origin: root(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+							None,
+							Some(ScheduledV2 {
+								maybe_id: Some(b"test".to_vec()),
+								priority: 123,
+								call: Call::Logger(logger::Call::log(69, 1000)),
+								maybe_periodic: Some((456u64, 10)),
+								origin: root(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+						]
+					)
+				]
+			);
 
 			assert_eq!(StorageVersion::get(), Releases::V2);
 		});
@@ -1515,93 +1755,92 @@
 						_phantom: Default::default(),
 					}),
 				];
-				frame_support::migration::put_storage_value(
-					b"Scheduler",
-					b"Agenda",
-					&k,
-					old,
-				);
+				frame_support::migration::put_storage_value(b"Scheduler", b"Agenda", &k, old);
 			}
 
-			impl Into<OriginCaller> for u32 {
-				fn into(self) -> OriginCaller {
-					match self {
-						3u32 => system::RawOrigin::Root.into(),
-						2u32 => system::RawOrigin::None.into(),
-						_ => unreachable!("test make no use of it"),
+			impl From<u32> for OriginCaller {
+				fn from(value: u32) -> Self {
+					match value {
+						3 => system::RawOrigin::Root.into(),
+						2 => system::RawOrigin::None.into(),
+						_ => unimplemented!(),
 					}
 				}
 			}
 
 			Scheduler::migrate_origin::<u32>();
 
-			assert_eq_uvec!(Agenda::<Test>::iter().collect::<Vec<_>>(), vec![
-				(
-					0,
-					vec![
-					Some(ScheduledV2::<_, _, OriginCaller, u64> {
-						maybe_id: None,
-						priority: 10,
-						call: Call::Logger(logger::Call::log(96, 100)),
-						maybe_periodic: None,
-						origin: system::RawOrigin::Root.into(),
-						_phantom: PhantomData::<u64>::default(),
-					}),
-					None,
-					Some(ScheduledV2 {
-						maybe_id: Some(b"test".to_vec()),
-						priority: 123,
-						call: Call::Logger(logger::Call::log(69, 1000)),
-						maybe_periodic: Some((456u64, 10)),
-						origin: system::RawOrigin::None.into(),
-						_phantom: PhantomData::<u64>::default(),
-					}),
-				]),
-				(
-					1,
-					vec![
-						Some(ScheduledV2 {
-							maybe_id: None,
-							priority: 11,
-							call: Call::Logger(logger::Call::log(96, 100)),
-							maybe_periodic: None,
-							origin: system::RawOrigin::Root.into(),
-							_phantom: PhantomData::<u64>::default(),
-						}),
-						None,
-						Some(ScheduledV2 {
-							maybe_id: Some(b"test".to_vec()),
-							priority: 123,
-							call: Call::Logger(logger::Call::log(69, 1000)),
-							maybe_periodic: Some((456u64, 10)),
-							origin: system::RawOrigin::None.into(),
-							_phantom: PhantomData::<u64>::default(),
-						}),
-					]
-				),
-				(
-					2,
-					vec![
-						Some(ScheduledV2 {
-							maybe_id: None,
-							priority: 12,
-							call: Call::Logger(logger::Call::log(96, 100)),
-							maybe_periodic: None,
-							origin: system::RawOrigin::Root.into(),
-							_phantom: PhantomData::<u64>::default(),
-						}),
-						None,
-						Some(ScheduledV2 {
-							maybe_id: Some(b"test".to_vec()),
-							priority: 123,
-							call: Call::Logger(logger::Call::log(69, 1000)),
-							maybe_periodic: Some((456u64, 10)),
-							origin: system::RawOrigin::None.into(),
-							_phantom: PhantomData::<u64>::default(),
-						}),
-					]
-				)
-			]);
+			assert_eq_uvec!(
+				Agenda::<Test>::iter().collect::<Vec<_>>(),
+				vec![
+					(
+						0,
+						vec![
+							Some(ScheduledV2::<_, _, OriginCaller, u64> {
+								maybe_id: None,
+								priority: 10,
+								call: Call::Logger(logger::Call::log(96, 100)),
+								maybe_periodic: None,
+								origin: system::RawOrigin::Root.into(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+							None,
+							Some(ScheduledV2 {
+								maybe_id: Some(b"test".to_vec()),
+								priority: 123,
+								call: Call::Logger(logger::Call::log(69, 1000)),
+								maybe_periodic: Some((456u64, 10)),
+								origin: system::RawOrigin::None.into(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+						]
+					),
+					(
+						1,
+						vec![
+							Some(ScheduledV2 {
+								maybe_id: None,
+								priority: 11,
+								call: Call::Logger(logger::Call::log(96, 100)),
+								maybe_periodic: None,
+								origin: system::RawOrigin::Root.into(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+							None,
+							Some(ScheduledV2 {
+								maybe_id: Some(b"test".to_vec()),
+								priority: 123,
+								call: Call::Logger(logger::Call::log(69, 1000)),
+								maybe_periodic: Some((456u64, 10)),
+								origin: system::RawOrigin::None.into(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+						]
+					),
+					(
+						2,
+						vec![
+							Some(ScheduledV2 {
+								maybe_id: None,
+								priority: 12,
+								call: Call::Logger(logger::Call::log(96, 100)),
+								maybe_periodic: None,
+								origin: system::RawOrigin::Root.into(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+							None,
+							Some(ScheduledV2 {
+								maybe_id: Some(b"test".to_vec()),
+								priority: 123,
+								call: Call::Logger(logger::Call::log(69, 1000)),
+								maybe_periodic: Some((456u64, 10)),
+								origin: system::RawOrigin::None.into(),
+								_phantom: PhantomData::<u64>::default(),
+							}),
+						]
+					)
+				]
+			);
 		});
 	}
 }
modifiedpallets/scheduler/src/weights.rsdiffbeforeafterboth
--- a/pallets/scheduler/src/weights.rs
+++ b/pallets/scheduler/src/weights.rs
@@ -34,85 +34,76 @@
 // --output=./frame/scheduler/src/weights.rs
 // --template=./.maintain/frame-weight-template.hbs
 
-
 #![allow(unused_parens)]
 #![allow(unused_imports)]
 
-use frame_support::{traits::Get, weights::{Weight, constants::RocksDbWeight}};
+use frame_support::{
+	traits::Get,
+	weights::{Weight, constants::RocksDbWeight},
+};
 use sp_std::marker::PhantomData;
 
 /// Weight functions needed for pallet_scheduler.
 pub trait WeightInfo {
-	fn schedule(s: u32, ) -> Weight;
-	fn cancel(s: u32, ) -> Weight;
-	fn schedule_named(s: u32, ) -> Weight;
-	fn cancel_named(s: u32, ) -> Weight;
-	
+	fn schedule(s: u32) -> Weight;
+	fn cancel(s: u32) -> Weight;
+	fn schedule_named(s: u32) -> Weight;
+	fn cancel_named(s: u32) -> Weight;
 }
 
 /// Weights for pallet_scheduler using the Substrate node and recommended hardware.
 pub struct SubstrateWeight<T>(PhantomData<T>);
 impl<T: frame_system::Config> WeightInfo for SubstrateWeight<T> {
-	fn schedule(s: u32, ) -> Weight {
-		(35_029_000 as Weight)
-			.saturating_add((77_000 as Weight).saturating_mul(s as Weight))
-			.saturating_add(T::DbWeight::get().reads(1 as Weight))
-			.saturating_add(T::DbWeight::get().writes(1 as Weight))
-			
+	fn schedule(s: u32) -> Weight {
+		35_029_000_u64
+			.saturating_add(77_000_u64.saturating_mul(s as Weight))
+			.saturating_add(T::DbWeight::get().reads(1_u64))
+			.saturating_add(T::DbWeight::get().writes(1_u64))
 	}
-	fn cancel(s: u32, ) -> Weight {
-		(31_419_000 as Weight)
-			.saturating_add((4_015_000 as Weight).saturating_mul(s as Weight))
-			.saturating_add(T::DbWeight::get().reads(1 as Weight))
-			.saturating_add(T::DbWeight::get().writes(2 as Weight))
-			
+	fn cancel(s: u32) -> Weight {
+		31_419_000_u64
+			.saturating_add(4_015_000_u64.saturating_mul(s as Weight))
+			.saturating_add(T::DbWeight::get().reads(1_u64))
+			.saturating_add(T::DbWeight::get().writes(2_u64))
 	}
-	fn schedule_named(s: u32, ) -> Weight {
-		(44_752_000 as Weight)
-			.saturating_add((123_000 as Weight).saturating_mul(s as Weight))
-			.saturating_add(T::DbWeight::get().reads(2 as Weight))
-			.saturating_add(T::DbWeight::get().writes(2 as Weight))
-			
+	fn schedule_named(s: u32) -> Weight {
+		44_752_000_u64
+			.saturating_add(123_000_u64.saturating_mul(s as Weight))
+			.saturating_add(T::DbWeight::get().reads(2_u64))
+			.saturating_add(T::DbWeight::get().writes(2_u64))
 	}
-	fn cancel_named(s: u32, ) -> Weight {
-		(35_712_000 as Weight)
-			.saturating_add((4_008_000 as Weight).saturating_mul(s as Weight))
-			.saturating_add(T::DbWeight::get().reads(2 as Weight))
-			.saturating_add(T::DbWeight::get().writes(2 as Weight))
-			
+	fn cancel_named(s: u32) -> Weight {
+		35_712_000_u64
+			.saturating_add(4_008_000_u64.saturating_mul(s as Weight))
+			.saturating_add(T::DbWeight::get().reads(2_u64))
+			.saturating_add(T::DbWeight::get().writes(2_u64))
 	}
-	
 }
 
 // For backwards compatibility and tests
 impl WeightInfo for () {
-	fn schedule(s: u32, ) -> Weight {
-		(35_029_000 as Weight)
-			.saturating_add((77_000 as Weight).saturating_mul(s as Weight))
-			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(1 as Weight))
-			
+	fn schedule(s: u32) -> Weight {
+		35_029_000_u64
+			.saturating_add(77_000_u64.saturating_mul(s as Weight))
+			.saturating_add(RocksDbWeight::get().reads(1_u64))
+			.saturating_add(RocksDbWeight::get().writes(1_u64))
 	}
-	fn cancel(s: u32, ) -> Weight {
-		(31_419_000 as Weight)
-			.saturating_add((4_015_000 as Weight).saturating_mul(s as Weight))
-			.saturating_add(RocksDbWeight::get().reads(1 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(2 as Weight))
-			
+	fn cancel(s: u32) -> Weight {
+		31_419_000_u64
+			.saturating_add(4_015_000_u64.saturating_mul(s as Weight))
+			.saturating_add(RocksDbWeight::get().reads(1_u64))
+			.saturating_add(RocksDbWeight::get().writes(2_u64))
 	}
-	fn schedule_named(s: u32, ) -> Weight {
-		(44_752_000 as Weight)
-			.saturating_add((123_000 as Weight).saturating_mul(s as Weight))
-			.saturating_add(RocksDbWeight::get().reads(2 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(2 as Weight))
-			
+	fn schedule_named(s: u32) -> Weight {
+		44_752_000_u64
+			.saturating_add(123_000_u64.saturating_mul(s as Weight))
+			.saturating_add(RocksDbWeight::get().reads(2_u64))
+			.saturating_add(RocksDbWeight::get().writes(2_u64))
 	}
-	fn cancel_named(s: u32, ) -> Weight {
-		(35_712_000 as Weight)
-			.saturating_add((4_008_000 as Weight).saturating_mul(s as Weight))
-			.saturating_add(RocksDbWeight::get().reads(2 as Weight))
-			.saturating_add(RocksDbWeight::get().writes(2 as Weight))
-			
+	fn cancel_named(s: u32) -> Weight {
+		35_712_000_u64
+			.saturating_add(4_008_000_u64.saturating_mul(s as Weight))
+			.saturating_add(RocksDbWeight::get().reads(2_u64))
+			.saturating_add(RocksDbWeight::get().writes(2_u64))
 	}
-	
 }
modifiedprimitives/nft/Cargo.tomldiffbeforeafterboth
--- a/primitives/nft/Cargo.toml
+++ b/primitives/nft/Cargo.toml
@@ -11,11 +11,11 @@
 [dependencies]
 codec = { package = "parity-scale-codec", version = "2.0.0", default-features = false, features = ['derive'] }
 serde = { version = "1.0.119", features = ['derive'], default-features = false }
-frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-pallet-contracts = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-core = { version = "3.0.0", default-features = false, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
-sp-runtime = { version = "3.0.0", default-features = false, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.3' }
+frame-support = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+frame-system = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+pallet-contracts = { default-features = false, version = '3.0.0', git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-core = { version = "3.0.0", default-features = false, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
+sp-runtime = { version = "3.0.0", default-features = false, git = 'https://github.com/paritytech/substrate.git', branch = 'polkadot-v0.9.7' }
 
 [features]
 default = ["std"]
modifiedprimitives/nft/src/lib.rsdiffbeforeafterboth
--- a/primitives/nft/src/lib.rs
+++ b/primitives/nft/src/lib.rs
@@ -1,26 +1,23 @@
-
 #![cfg_attr(not(feature = "std"), no_std)]
 
 pub use serde::{Serialize, Deserialize};
 
-use frame_system;
 use sp_runtime::sp_std::prelude::Vec;
 use codec::{Decode, Encode};
 pub use frame_support::{
-    construct_runtime, decl_event, decl_module, decl_storage, decl_error,
-    dispatch::DispatchResult,
-    ensure, fail, parameter_types,
-    traits::{
-        Currency, ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced,
-        Randomness, IsSubType, WithdrawReasons,
-    },
-    weights::{
-        constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
-        DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,
-        WeightToFeePolynomial, DispatchClass,
-    },
-    StorageValue,
-    transactional,
+	construct_runtime, decl_event, decl_module, decl_storage, decl_error,
+	dispatch::DispatchResult,
+	ensure, fail, parameter_types,
+	traits::{
+		Currency, ExistenceRequirement, Get, Imbalance, KeyOwnerProofSystem, OnUnbalanced,
+		Randomness, IsSubType, WithdrawReasons,
+	},
+	weights::{
+		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
+		DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,
+		WeightToFeePolynomial, DispatchClass,
+	},
+	StorageValue, transactional,
 };
 
 pub const MAX_DECIMAL_POINTS: DecimalPoints = 30;
@@ -35,251 +32,245 @@
 #[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub enum CollectionMode {
-    Invalid,
-    NFT,
-    // decimal points
-    Fungible(DecimalPoints),
-    ReFungible,
+	Invalid,
+	NFT,
+	// decimal points
+	Fungible(DecimalPoints),
+	ReFungible,
 }
 
 impl Default for CollectionMode {
-    fn default() -> Self {
-        Self::Invalid
-    }
+	fn default() -> Self {
+		Self::Invalid
+	}
 }
 
-impl Into<u8> for CollectionMode {
-    fn into(self) -> u8 {
-        match self {
-            CollectionMode::Invalid => 0,
-            CollectionMode::NFT => 1,
-            CollectionMode::Fungible(_) => 2,
-            CollectionMode::ReFungible => 3,
-        }
-    }
+impl CollectionMode {
+	pub fn id(&self) -> u8 {
+		match self {
+			CollectionMode::Invalid => 0,
+			CollectionMode::NFT => 1,
+			CollectionMode::Fungible(_) => 2,
+			CollectionMode::ReFungible => 3,
+		}
+	}
 }
 
 pub trait SponsoringResolve<AccountId, Call> {
-    fn resolve(
-        who: &AccountId,
-		call: &Call) -> Option<AccountId>;
+	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId>;
 }
 
 #[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub enum AccessMode {
-    Normal,
-    WhiteList,
+	Normal,
+	WhiteList,
 }
 impl Default for AccessMode {
-    fn default() -> Self {
-        Self::Normal
-    }
+	fn default() -> Self {
+		Self::Normal
+	}
 }
 
 #[derive(Encode, Decode, Eq, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub enum SchemaVersion {
-    ImageURL,
-    Unique,
+	ImageURL,
+	Unique,
 }
 impl Default for SchemaVersion {
-    fn default() -> Self {
-        Self::ImageURL
-    }
+	fn default() -> Self {
+		Self::ImageURL
+	}
 }
 
 #[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct Ownership<AccountId> {
-    pub owner: AccountId,
-    pub fraction: u128,
+	pub owner: AccountId,
+	pub fraction: u128,
 }
 
 #[derive(Encode, Decode, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub enum SponsorshipState<AccountId> {
-    /// The fees are applied to the transaction sender
-    Disabled,
-    Unconfirmed(AccountId),
-    /// Transactions are sponsored by specified account
-    Confirmed(AccountId),
+	/// The fees are applied to the transaction sender
+	Disabled,
+	Unconfirmed(AccountId),
+	/// Transactions are sponsored by specified account
+	Confirmed(AccountId),
 }
 
 impl<AccountId> SponsorshipState<AccountId> {
-    pub fn sponsor(&self) -> Option<&AccountId> {
-        match self {
-            Self::Confirmed(sponsor) => Some(sponsor),
-            _ => None,
-        }
-    }
+	pub fn sponsor(&self) -> Option<&AccountId> {
+		match self {
+			Self::Confirmed(sponsor) => Some(sponsor),
+			_ => None,
+		}
+	}
 
-    pub fn pending_sponsor(&self) -> Option<&AccountId> {
-        match self {
-            Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),
-            _ => None,
-        }
-    }
+	pub fn pending_sponsor(&self) -> Option<&AccountId> {
+		match self {
+			Self::Unconfirmed(sponsor) | Self::Confirmed(sponsor) => Some(sponsor),
+			_ => None,
+		}
+	}
 
-    pub fn confirmed(&self) -> bool {
-        matches!(self, Self::Confirmed(_))
-    }
+	pub fn confirmed(&self) -> bool {
+		matches!(self, Self::Confirmed(_))
+	}
 }
 
 impl<T> Default for SponsorshipState<T> {
-    fn default() -> Self {
-        Self::Disabled
-    }
+	fn default() -> Self {
+		Self::Disabled
+	}
 }
 
 #[derive(Encode, Decode, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct Collection<T: frame_system::Config> {
-    pub owner: T::AccountId,
-    pub mode: CollectionMode,
-    pub access: AccessMode,
-    pub decimal_points: DecimalPoints,
-    pub name: Vec<u16>,        // 64 include null escape char
-    pub description: Vec<u16>, // 256 include null escape char
-    pub token_prefix: Vec<u8>, // 16 include null escape char
-    pub mint_mode: bool,
-    pub offchain_schema: Vec<u8>,
-    pub schema_version: SchemaVersion,
-    pub sponsorship: SponsorshipState<T::AccountId>,
-    pub limits: CollectionLimits<T::BlockNumber>, // Collection private restrictions 
-    pub variable_on_chain_schema: Vec<u8>, //
-    pub const_on_chain_schema: Vec<u8>, //
+	pub owner: T::AccountId,
+	pub mode: CollectionMode,
+	pub access: AccessMode,
+	pub decimal_points: DecimalPoints,
+	pub name: Vec<u16>,        // 64 include null escape char
+	pub description: Vec<u16>, // 256 include null escape char
+	pub token_prefix: Vec<u8>, // 16 include null escape char
+	pub mint_mode: bool,
+	pub offchain_schema: Vec<u8>,
+	pub schema_version: SchemaVersion,
+	pub sponsorship: SponsorshipState<T::AccountId>,
+	pub limits: CollectionLimits<T::BlockNumber>, // Collection private restrictions
+	pub variable_on_chain_schema: Vec<u8>,        //
+	pub const_on_chain_schema: Vec<u8>,           //
 }
 
 #[derive(Encode, Decode, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct NftItemType<AccountId> {
-    pub owner: AccountId,
-    pub const_data: Vec<u8>,
-    pub variable_data: Vec<u8>,
+	pub owner: AccountId,
+	pub const_data: Vec<u8>,
+	pub variable_data: Vec<u8>,
 }
 
 #[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct FungibleItemType {
-    pub value: u128,
+	pub value: u128,
 }
 
 #[derive(Encode, Decode, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct ReFungibleItemType<AccountId> {
-    pub owner: Vec<Ownership<AccountId>>,
-    pub const_data: Vec<u8>,
-    pub variable_data: Vec<u8>,
+	pub owner: Vec<Ownership<AccountId>>,
+	pub const_data: Vec<u8>,
+	pub variable_data: Vec<u8>,
 }
-
 
 #[derive(Encode, Decode, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct CollectionLimits<BlockNumber: Encode + Decode> {
-    pub account_token_ownership_limit: u32,
-    pub sponsored_data_size: u32,
-    /// None - setVariableMetadata is not sponsored
-    /// Some(v) - setVariableMetadata is sponsored 
-    ///           if there is v block between txs
-    pub sponsored_data_rate_limit: Option<BlockNumber>,
-    pub token_limit: u32,
+	pub account_token_ownership_limit: u32,
+	pub sponsored_data_size: u32,
+	/// None - setVariableMetadata is not sponsored
+	/// Some(v) - setVariableMetadata is sponsored
+	///           if there is v block between txs
+	pub sponsored_data_rate_limit: Option<BlockNumber>,
+	pub token_limit: u32,
 
-    // Timeouts for item types in passed blocks
-    pub sponsor_transfer_timeout: u32,
-    pub owner_can_transfer: bool,
-    pub owner_can_destroy: bool,
+	// Timeouts for item types in passed blocks
+	pub sponsor_transfer_timeout: u32,
+	pub owner_can_transfer: bool,
+	pub owner_can_destroy: bool,
 }
 
 impl<BlockNumber: Encode + Decode> Default for CollectionLimits<BlockNumber> {
-    fn default() -> Self {
-        Self { 
-            account_token_ownership_limit: 10_000_000, 
-            token_limit: u32::max_value(),
-            sponsored_data_size: u32::MAX, 
-            sponsored_data_rate_limit: None,
-            sponsor_transfer_timeout: 14400,
-            owner_can_transfer: true,
-            owner_can_destroy: true
-        }
-    }
+	fn default() -> Self {
+		Self {
+			account_token_ownership_limit: 10_000_000,
+			token_limit: u32::max_value(),
+			sponsored_data_size: u32::MAX,
+			sponsored_data_rate_limit: None,
+			sponsor_transfer_timeout: 14400,
+			owner_can_transfer: true,
+			owner_can_destroy: true,
+		}
+	}
 }
 
 #[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct ChainLimits {
-    pub collection_numbers_limit: u32,
-    pub account_token_ownership_limit: u32,
-    pub collections_admins_limit: u64,
-    pub custom_data_limit: u32,
+	pub collection_numbers_limit: u32,
+	pub account_token_ownership_limit: u32,
+	pub collections_admins_limit: u64,
+	pub custom_data_limit: u32,
 
-    // Timeouts for item types in passed blocks
-    pub nft_sponsor_transfer_timeout: u32,
-    pub fungible_sponsor_transfer_timeout: u32,
-    pub refungible_sponsor_transfer_timeout: u32,
+	// Timeouts for item types in passed blocks
+	pub nft_sponsor_transfer_timeout: u32,
+	pub fungible_sponsor_transfer_timeout: u32,
+	pub refungible_sponsor_transfer_timeout: u32,
 
-    // Schema limits
-    pub offchain_schema_limit: u32,
-    pub variable_on_chain_schema_limit: u32,
-    pub const_on_chain_schema_limit: u32,
+	// Schema limits
+	pub offchain_schema_limit: u32,
+	pub variable_on_chain_schema_limit: u32,
+	pub const_on_chain_schema_limit: u32,
 }
 
-
 #[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct CreateNftData {
-    pub const_data: Vec<u8>,
-    pub variable_data: Vec<u8>,
+	pub const_data: Vec<u8>,
+	pub variable_data: Vec<u8>,
 }
 
 #[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct CreateFungibleData {
-    pub value: u128,
+	pub value: u128,
 }
 
 #[derive(Encode, Decode, Default, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct CreateReFungibleData {
-    pub const_data: Vec<u8>,
-    pub variable_data: Vec<u8>,
-    pub pieces: u128,
+	pub const_data: Vec<u8>,
+	pub variable_data: Vec<u8>,
+	pub pieces: u128,
 }
 
 #[derive(Encode, Decode, Debug, Clone, PartialEq)]
 #[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub enum CreateItemData {
-    NFT(CreateNftData),
-    Fungible(CreateFungibleData),
-    ReFungible(CreateReFungibleData),
+	NFT(CreateNftData),
+	Fungible(CreateFungibleData),
+	ReFungible(CreateReFungibleData),
 }
 
 impl CreateItemData {
-    pub fn len(&self) -> usize {
-        let len = match self {
-            CreateItemData::NFT(data) => data.variable_data.len() + data.const_data.len(),
-            CreateItemData::ReFungible(data) => data.variable_data.len() + data.const_data.len(),
-            _ => 0
-        };
-        
-        return len;
-    }
+	pub fn data_size(&self) -> usize {
+		match self {
+			CreateItemData::NFT(data) => data.variable_data.len() + data.const_data.len(),
+			CreateItemData::ReFungible(data) => data.variable_data.len() + data.const_data.len(),
+			_ => 0,
+		}
+	}
 }
 
 impl From<CreateNftData> for CreateItemData {
-    fn from(item: CreateNftData) -> Self {
-        CreateItemData::NFT(item)
-    }
+	fn from(item: CreateNftData) -> Self {
+		CreateItemData::NFT(item)
+	}
 }
 
 impl From<CreateReFungibleData> for CreateItemData {
-    fn from(item: CreateReFungibleData) -> Self {
-        CreateItemData::ReFungible(item)
-    }
+	fn from(item: CreateReFungibleData) -> Self {
+		CreateItemData::ReFungible(item)
+	}
 }
 
 impl From<CreateFungibleData> for CreateItemData {
-    fn from(item: CreateFungibleData) -> Self {
-        CreateItemData::Fungible(item)
-    }
+	fn from(item: CreateFungibleData) -> Self {
+		CreateItemData::Fungible(item)
+	}
 }
modifiedruntime/Cargo.tomldiffbeforeafterboth
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -95,38 +95,38 @@
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
 optional = true
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-executive]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-support]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-system]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-system-benchmarking]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
 optional = true
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.frame-system-rpc-runtime-api]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.hex-literal]
@@ -142,152 +142,152 @@
 [dependencies.pallet-aura]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-balances]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 # Contracts specific packages
 [dependencies.pallet-contracts]
 git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-contracts-primitives]
 git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-contracts-rpc-runtime-api]
 git = 'https://github.com/paritytech/substrate.git'
 default-features = false
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-randomness-collective-flip]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-sudo]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-timestamp]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-transaction-payment]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-transaction-payment-rpc-runtime-api]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-treasury]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.pallet-vesting]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-arithmetic]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-api]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-block-builder]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-core]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-consensus-aura]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.9.0'
 
 [dependencies.sp-inherents]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-io]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-offchain]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-runtime]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-session]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-std]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-transaction-pool]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.sp-version]
 default-features = false
 git = 'https://github.com/paritytech/substrate.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '3.0.0'
 
 [dependencies.smallvec]
@@ -299,42 +299,47 @@
 [dependencies.parachain-info]
 default-features = false
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 version = '0.1.0'
 
 [dependencies.cumulus-pallet-aura-ext]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 default-features = false
 
 [dependencies.cumulus-pallet-parachain-system]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 default-features = false
 
 [dependencies.cumulus-primitives-core]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 default-features = false
 
 [dependencies.cumulus-pallet-xcm]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 default-features = false
 
 [dependencies.cumulus-pallet-dmp-queue]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 default-features = false
 
 [dependencies.cumulus-pallet-xcmp-queue]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
 default-features = false
 
 [dependencies.cumulus-primitives-utility]
 git = 'https://github.com/paritytech/cumulus.git'
-branch = 'polkadot-v0.9.3'
+branch = 'polkadot-v0.9.7'
+default-features = false
+
+[dependencies.cumulus-primitives-timestamp]
+git = 'https://github.com/paritytech/cumulus.git'
+branch = 'polkadot-v0.9.7'
 default-features = false
 
 ################################################################################
@@ -342,27 +347,27 @@
 
 [dependencies.polkadot-parachain]
 git = 'https://github.com/paritytech/polkadot'
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 default-features = false
 
 [dependencies.xcm]
 git = 'https://github.com/paritytech/polkadot'
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 default-features = false
 
 [dependencies.xcm-builder]
 git = 'https://github.com/paritytech/polkadot'
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 default-features = false
 
 [dependencies.xcm-executor]
 git = 'https://github.com/paritytech/polkadot'
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 default-features = false
 
 [dependencies.pallet-xcm]
 git = 'https://github.com/paritytech/polkadot'
-branch = 'release-v0.9.3'
+branch = 'release-v0.9.7'
 default-features = false
 
 
@@ -379,8 +384,8 @@
 pallet-nft-transaction-payment = { path = '../pallets/nft-transaction-payment', default-features = false, version = '3.0.0' }
 pallet-nft-charge-transaction = { path = '../pallets/nft-charge-transaction', default-features = false, version = '3.0.0' }
 
-pallet-evm = { default-features = false, version = "4.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
-pallet-ethereum = { default-features = false, version = "2.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
+pallet-evm = { default-features = false, version = "5.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
+pallet-ethereum = { default-features = false, version = "3.0.0-dev", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
 fp-rpc = { default-features = false, version = "2.0.0", git = "https://github.com/usetech-llc/frontier.git", branch = "injected-transactions-parachain" }
 
 ################################################################################
modifiedruntime/build.rsdiffbeforeafterboth
--- a/runtime/build.rs
+++ b/runtime/build.rs
@@ -1,9 +1,9 @@
 use substrate_wasm_builder::WasmBuilder;
 
 fn main() {
-    WasmBuilder::new()
-        .with_current_project()
-        .import_memory()
-        .export_heap_base()
-        .build()
-}
\ No newline at end of file
+	WasmBuilder::new()
+		.with_current_project()
+		.import_memory()
+		.export_heap_base()
+		.build()
+}
modifiedruntime/src/chain_extension.rsdiffbeforeafterboth
--- a/runtime/src/chain_extension.rs
+++ b/runtime/src/chain_extension.rs
@@ -9,7 +9,7 @@
 
 pub use pallet_contracts::chain_extension::RetVal;
 use pallet_contracts::chain_extension::{
-    ChainExtension, Environment, Ext, InitState, SysConfig, UncheckedFrom,
+	ChainExtension, Environment, Ext, InitState, SysConfig, UncheckedFrom,
 };
 
 pub use frame_support::debug;
@@ -25,56 +25,56 @@
 /// Create item parameters
 #[derive(Debug, PartialEq, Encode, Decode)]
 pub struct NFTExtCreateItem<E: Ext> {
-    pub owner: <E::T as SysConfig>::AccountId,
-    pub collection_id: u32,
-    pub data: CreateItemData,
+	pub owner: <E::T as SysConfig>::AccountId,
+	pub collection_id: u32,
+	pub data: CreateItemData,
 }
 
 /// Transfer parameters
 #[derive(Debug, PartialEq, Encode, Decode)]
 pub struct NFTExtTransfer<E: Ext> {
-    pub recipient: <E::T as SysConfig>::AccountId,
-    pub collection_id: u32,
-    pub token_id: u32,
-    pub amount: u128,
+	pub recipient: <E::T as SysConfig>::AccountId,
+	pub collection_id: u32,
+	pub token_id: u32,
+	pub amount: u128,
 }
 
 #[derive(Debug, PartialEq, Encode, Decode)]
 pub struct NFTExtCreateMultipleItems<E: Ext> {
-    pub owner: <E::T as SysConfig>::AccountId,
-    pub collection_id: u32,
-    pub data: Vec<CreateItemData>,
+	pub owner: <E::T as SysConfig>::AccountId,
+	pub collection_id: u32,
+	pub data: Vec<CreateItemData>,
 }
 
 #[derive(Debug, PartialEq, Encode, Decode)]
 pub struct NFTExtApprove<E: Ext> {
-    pub spender: <E::T as SysConfig>::AccountId,
-    pub collection_id: u32,
-    pub item_id: u32,
-    pub amount: u128,
+	pub spender: <E::T as SysConfig>::AccountId,
+	pub collection_id: u32,
+	pub item_id: u32,
+	pub amount: u128,
 }
 
 #[derive(Debug, PartialEq, Encode, Decode)]
 pub struct NFTExtTransferFrom<E: Ext> {
-    pub owner: <E::T as SysConfig>::AccountId,
-    pub recipient: <E::T as SysConfig>::AccountId,
-    pub collection_id: u32,
-    pub item_id: u32,
-    pub amount: u128,
+	pub owner: <E::T as SysConfig>::AccountId,
+	pub recipient: <E::T as SysConfig>::AccountId,
+	pub collection_id: u32,
+	pub item_id: u32,
+	pub amount: u128,
 }
 
 #[derive(Debug, PartialEq, Encode, Decode)]
 pub struct NFTExtSetVariableMetaData {
-    pub collection_id: u32,
-    pub item_id: u32,
-    pub data: Vec<u8>,   
+	pub collection_id: u32,
+	pub item_id: u32,
+	pub data: Vec<u8>,
 }
 
 #[derive(Debug, PartialEq, Encode, Decode)]
 pub struct NFTExtToggleWhiteList<E: Ext> {
-    pub collection_id: u32,
-    pub address: <E::T as SysConfig>::AccountId,
-    pub whitelisted: bool,
+	pub collection_id: u32,
+	pub address: <E::T as SysConfig>::AccountId,
+	pub whitelisted: bool,
 }
 
 /// The chain Extension of NFT pallet
@@ -83,150 +83,146 @@
 pub type NftWeightInfoOf<C> = <C as pallet_nft::Config>::WeightInfo;
 
 impl<C: Config + pallet_contracts::Config> ChainExtension<C> for NFTExtension {
-    fn call<E: Ext>(func_id: u32, env: Environment<E, InitState>) -> Result<RetVal, DispatchError>
-    where
-        E: Ext<T = C>,
-        C: pallet_nft::Config,
-        <E::T as SysConfig>::AccountId: UncheckedFrom<<E::T as SysConfig>::Hash> + AsRef<[u8]>,
-    {
-        // The memory of the vm stores buf in scale-codec
-        match func_id {
-            0 => {
-                let mut env = env.buf_in_buf_out();
-                let input: NFTExtTransfer<E> = env.read_as()?;
-                env.charge_weight(NftWeightInfoOf::<C>::transfer())?;
+	fn call<E: Ext>(func_id: u32, env: Environment<E, InitState>) -> Result<RetVal, DispatchError>
+	where
+		E: Ext<T = C>,
+		C: pallet_nft::Config,
+		<E::T as SysConfig>::AccountId: UncheckedFrom<<E::T as SysConfig>::Hash> + AsRef<[u8]>,
+	{
+		// The memory of the vm stores buf in scale-codec
+		match func_id {
+			0 => {
+				let mut env = env.buf_in_buf_out();
+				let input: NFTExtTransfer<E> = env.read_as()?;
+				env.charge_weight(NftWeightInfoOf::<C>::transfer())?;
 
-                let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
+				let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
 
-                pallet_nft::Module::<C>::transfer_internal(
-                    &C::CrossAccountId::from_sub(env.ext().address().clone()),
-                    &C::CrossAccountId::from_sub(input.recipient),
-                    &collection,
-                    input.token_id,
-                    input.amount,
-                )?;
+				pallet_nft::Module::<C>::transfer_internal(
+					&C::CrossAccountId::from_sub(env.ext().address().clone()),
+					&C::CrossAccountId::from_sub(input.recipient),
+					&collection,
+					input.token_id,
+					input.amount,
+				)?;
 
-                pallet_nft::Module::<C>::submit_logs(collection)?;
-                Ok(RetVal::Converging(0))
-            },
-            1 => {
-                // Create Item
-                let mut env = env.buf_in_buf_out();
-                let input: NFTExtCreateItem<E> = env.read_as()?;
-                env.charge_weight(NftWeightInfoOf::<C>::create_item(input.data.len()))?;
+				pallet_nft::Module::<C>::submit_logs(collection)?;
+				Ok(RetVal::Converging(0))
+			}
+			1 => {
+				// Create Item
+				let mut env = env.buf_in_buf_out();
+				let input: NFTExtCreateItem<E> = env.read_as()?;
+				env.charge_weight(NftWeightInfoOf::<C>::create_item(input.data.data_size()))?;
 
-                let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
+				let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
 
-                pallet_nft::Module::<C>::create_item_internal(
-                    &C::CrossAccountId::from_sub(env.ext().address().clone()),
-                    &collection,
-                    &C::CrossAccountId::from_sub(input.owner),
-                    input.data,
-                )?;
+				pallet_nft::Module::<C>::create_item_internal(
+					&C::CrossAccountId::from_sub(env.ext().address().clone()),
+					&collection,
+					&C::CrossAccountId::from_sub(input.owner),
+					input.data,
+				)?;
 
-                pallet_nft::Module::<C>::submit_logs(collection)?;
-                Ok(RetVal::Converging(0))
-            },
-            2 => {
-                // Create multiple items
-                let mut env = env.buf_in_buf_out();
-                let input: NFTExtCreateMultipleItems<E> = env.read_as()?;
-                env.charge_weight(NftWeightInfoOf::<C>::create_item(
-                    input.data.iter()
-                        .map(|i| i.len())
-                        .sum()
-                ))?;
+				pallet_nft::Module::<C>::submit_logs(collection)?;
+				Ok(RetVal::Converging(0))
+			}
+			2 => {
+				// Create multiple items
+				let mut env = env.buf_in_buf_out();
+				let input: NFTExtCreateMultipleItems<E> = env.read_as()?;
+				env.charge_weight(NftWeightInfoOf::<C>::create_item(
+					input.data.iter().map(|i| i.data_size()).sum(),
+				))?;
 
-                let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
+				let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
 
-                pallet_nft::Module::<C>::create_multiple_items_internal(
-                    &C::CrossAccountId::from_sub(env.ext().address().clone()),
-                    &collection,
-                    &C::CrossAccountId::from_sub(input.owner),
-                    input.data,
-                )?;
+				pallet_nft::Module::<C>::create_multiple_items_internal(
+					&C::CrossAccountId::from_sub(env.ext().address().clone()),
+					&collection,
+					&C::CrossAccountId::from_sub(input.owner),
+					input.data,
+				)?;
 
-                pallet_nft::Module::<C>::submit_logs(collection)?;
-                Ok(RetVal::Converging(0))
-            },
-            3 => {
-                // Approve
-                let mut env = env.buf_in_buf_out();
-                let input: NFTExtApprove<E> = env.read_as()?;
-                env.charge_weight(NftWeightInfoOf::<C>::approve())?;
+				pallet_nft::Module::<C>::submit_logs(collection)?;
+				Ok(RetVal::Converging(0))
+			}
+			3 => {
+				// Approve
+				let mut env = env.buf_in_buf_out();
+				let input: NFTExtApprove<E> = env.read_as()?;
+				env.charge_weight(NftWeightInfoOf::<C>::approve())?;
 
-                let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
+				let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
 
-                pallet_nft::Module::<C>::approve_internal(
-                    &C::CrossAccountId::from_sub(env.ext().address().clone()),
-                    &C::CrossAccountId::from_sub(input.spender),
-                    &collection,
-                    input.item_id,
-                    input.amount,
-                )?;
+				pallet_nft::Module::<C>::approve_internal(
+					&C::CrossAccountId::from_sub(env.ext().address().clone()),
+					&C::CrossAccountId::from_sub(input.spender),
+					&collection,
+					input.item_id,
+					input.amount,
+				)?;
 
-                pallet_nft::Module::<C>::submit_logs(collection)?;
-                Ok(RetVal::Converging(0))
-            },
-            4 => {
-                // Transfer from
-                let mut env = env.buf_in_buf_out();
-                let input: NFTExtTransferFrom<E> = env.read_as()?;
-                env.charge_weight(NftWeightInfoOf::<C>::transfer_from())?;
+				pallet_nft::Module::<C>::submit_logs(collection)?;
+				Ok(RetVal::Converging(0))
+			}
+			4 => {
+				// Transfer from
+				let mut env = env.buf_in_buf_out();
+				let input: NFTExtTransferFrom<E> = env.read_as()?;
+				env.charge_weight(NftWeightInfoOf::<C>::transfer_from())?;
 
-                let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
+				let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
 
-                pallet_nft::Module::<C>::transfer_from_internal(
-                    &C::CrossAccountId::from_sub(env.ext().address().clone()),
-                    &C::CrossAccountId::from_sub(input.owner),
-                    &C::CrossAccountId::from_sub(input.recipient),
-                    &collection,
-                    input.item_id,
-                    input.amount
-                )?;
+				pallet_nft::Module::<C>::transfer_from_internal(
+					&C::CrossAccountId::from_sub(env.ext().address().clone()),
+					&C::CrossAccountId::from_sub(input.owner),
+					&C::CrossAccountId::from_sub(input.recipient),
+					&collection,
+					input.item_id,
+					input.amount,
+				)?;
 
-                pallet_nft::Module::<C>::submit_logs(collection)?;
-                Ok(RetVal::Converging(0))
-            },
-            5 => {
-                // Set variable metadata
-                let mut env = env.buf_in_buf_out();
-                let input: NFTExtSetVariableMetaData = env.read_as()?;
-                env.charge_weight(NftWeightInfoOf::<C>::set_variable_meta_data())?;
+				pallet_nft::Module::<C>::submit_logs(collection)?;
+				Ok(RetVal::Converging(0))
+			}
+			5 => {
+				// Set variable metadata
+				let mut env = env.buf_in_buf_out();
+				let input: NFTExtSetVariableMetaData = env.read_as()?;
+				env.charge_weight(NftWeightInfoOf::<C>::set_variable_meta_data())?;
 
-                let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
+				let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
 
-                pallet_nft::Module::<C>::set_variable_meta_data_internal(
-                    &C::CrossAccountId::from_sub(env.ext().address().clone()),
-                    &collection,
-                    input.item_id,
-                    input.data,
-                )?;
+				pallet_nft::Module::<C>::set_variable_meta_data_internal(
+					&C::CrossAccountId::from_sub(env.ext().address().clone()),
+					&collection,
+					input.item_id,
+					input.data,
+				)?;
 
-                pallet_nft::Module::<C>::submit_logs(collection)?;
-                Ok(RetVal::Converging(0))
-            },
-            6 => {
-                // Toggle whitelist
-                let mut env = env.buf_in_buf_out();
-                let input: NFTExtToggleWhiteList<E> = env.read_as()?;
-                env.charge_weight(NftWeightInfoOf::<C>::add_to_white_list())?;
+				pallet_nft::Module::<C>::submit_logs(collection)?;
+				Ok(RetVal::Converging(0))
+			}
+			6 => {
+				// Toggle whitelist
+				let mut env = env.buf_in_buf_out();
+				let input: NFTExtToggleWhiteList<E> = env.read_as()?;
+				env.charge_weight(NftWeightInfoOf::<C>::add_to_white_list())?;
 
-                let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
+				let collection = pallet_nft::Module::<C>::get_collection(input.collection_id)?;
 
-                pallet_nft::Module::<C>::toggle_white_list_internal(
-                    &C::CrossAccountId::from_sub(env.ext().address().clone()),
-                    &collection,
-                    &C::CrossAccountId::from_sub(input.address),
-                    input.whitelisted,
-                )?;
+				pallet_nft::Module::<C>::toggle_white_list_internal(
+					&C::CrossAccountId::from_sub(env.ext().address().clone()),
+					&collection,
+					&C::CrossAccountId::from_sub(input.address),
+					input.whitelisted,
+				)?;
 
-                pallet_nft::Module::<C>::submit_logs(collection)?;
-                Ok(RetVal::Converging(0))
-            }
-            _ => {
-                Err(DispatchError::Other("unknown chain_extension func_id"))
-            }
-        }
-    }
+				pallet_nft::Module::<C>::submit_logs(collection)?;
+				Ok(RetVal::Converging(0))
+			}
+			_ => Err(DispatchError::Other("unknown chain_extension func_id")),
+		}
+	}
 }
modifiedruntime/src/lib.rsdiffbeforeafterboth
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -8,25 +8,25 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 // `construct_runtime!` does a lot of recursion and requires us to increase the limit to 256.
 #![recursion_limit = "1024"]
-
+#![allow(clippy::from_over_into, clippy::identity_op)]
+#![allow(clippy::fn_to_numeric_cast_with_truncation)]
 // Make the WASM binary available.
 #[cfg(feature = "std")]
 include!(concat!(env!("OUT_DIR"), "/wasm_binary.rs"));
 
 use sp_api::impl_runtime_apis;
-use sp_core::{ crypto::KeyTypeId, OpaqueMetadata, H256, U256, H160 };
+use sp_core::{crypto::KeyTypeId, OpaqueMetadata, H256, U256, H160};
 // #[cfg(any(feature = "std", test))]
 // pub use sp_runtime::BuildStorage;
 
 use sp_runtime::{
-    Permill, Perbill, Percent,
-    create_runtime_str, generic, impl_opaque_keys,
-    traits::{
-        AccountIdLookup, ConvertInto, BlakeTwo256, Block as BlockT, IdentifyAccount, 
-		Verify, AccountIdConversion,
-    },
-    transaction_validity::{TransactionSource, TransactionValidity},
-    ApplyExtrinsicResult, MultiSignature,
+	Permill, Perbill, Percent, create_runtime_str, generic, impl_opaque_keys,
+	traits::{
+		AccountIdLookup, ConvertInto, BlakeTwo256, Block as BlockT, IdentifyAccount, Verify,
+		AccountIdConversion,
+	},
+	transaction_validity::{TransactionSource, TransactionValidity},
+	ApplyExtrinsicResult, MultiSignature,
 };
 
 use sp_std::prelude::*;
@@ -34,48 +34,45 @@
 #[cfg(feature = "std")]
 use sp_version::NativeVersion;
 use sp_version::RuntimeVersion;
-pub use pallet_transaction_payment::{Multiplier, TargetedFeeAdjustment, FeeDetails, RuntimeDispatchInfo};
+pub use pallet_transaction_payment::{
+	Multiplier, TargetedFeeAdjustment, FeeDetails, RuntimeDispatchInfo,
+};
 // A few exports that help ease life for downstream crates.
 pub use pallet_balances::Call as BalancesCall;
 pub use pallet_evm::{EnsureAddressTruncated, HashedAddressMapping, Runner};
 pub use frame_support::{
-    construct_runtime,
-	match_type,
-    dispatch::DispatchResult,
-	PalletId,
-    parameter_types,
-    StorageValue,
-	ConsensusEngineId,
-    traits::{
-        All, Currency, ExistenceRequirement, Get, IsInVec, KeyOwnerProofSystem, LockIdentifier, OnUnbalanced, Randomness, FindAuthor
-    },
-    weights::{
-        constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
-        DispatchClass, DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,
-        WeightToFeePolynomial, WeightToFeeCoefficient, WeightToFeeCoefficients
-    },
+	construct_runtime, match_type,
+	dispatch::DispatchResult,
+	PalletId, parameter_types, StorageValue, ConsensusEngineId,
+	traits::{
+		All, Currency, ExistenceRequirement, Get, IsInVec, KeyOwnerProofSystem, LockIdentifier,
+		OnUnbalanced, Randomness, FindAuthor,
+	},
+	weights::{
+		constants::{BlockExecutionWeight, ExtrinsicBaseWeight, RocksDbWeight, WEIGHT_PER_SECOND},
+		DispatchClass, DispatchInfo, GetDispatchInfo, IdentityFee, Pays, PostDispatchInfo, Weight,
+		WeightToFeePolynomial, WeightToFeeCoefficient, WeightToFeeCoefficients,
+	},
 };
 use nft_data_structs::*;
 use pallet_contracts::weights::WeightInfo;
 // #[cfg(any(feature = "std", test))]
 use frame_system::{
-    self as system,
-    EnsureRoot, EnsureSigned,
+	self as system, EnsureRoot, EnsureSigned,
 	limits::{BlockWeights, BlockLength},
 };
-use sp_arithmetic::{traits::{BaseArithmetic, Unsigned}};
+use sp_arithmetic::{
+	traits::{BaseArithmetic, Unsigned},
+};
 use smallvec::smallvec;
 use codec::{Encode, Decode};
 use pallet_evm::{Account as EVMAccount, FeeCalculator, OnMethodCall};
 use fp_rpc::TransactionStatus;
 use sp_core::crypto::Public;
 use sp_runtime::{
-	traits::{ 
-		Dispatchable,
-	},
+	traits::{Dispatchable},
 };
 use pallet_contracts::chain_extension::UncheckedFrom;
-
 
 pub use pallet_timestamp::Call as TimestampCall;
 pub use sp_consensus_aura::sr25519::AuthorityId as AuraId;
@@ -94,9 +91,8 @@
 };
 use xcm_executor::{Config, XcmExecutor};
 
-
 mod chain_extension;
-use crate::chain_extension::{ NFTExtension, Imbalance };
+use crate::chain_extension::{NFTExtension, Imbalance};
 
 /// Re-export a nft pallet
 /// TODO: Check this re-export. Is this safe and good style?
@@ -144,16 +140,16 @@
 
 	pub use sp_runtime::OpaqueExtrinsic as UncheckedExtrinsic;
 
-    /// Opaque block type.
-    pub type Block = generic::Block<Header, UncheckedExtrinsic>;
+	/// Opaque block type.
+	pub type Block = generic::Block<Header, UncheckedExtrinsic>;
 
-    pub type SessionHandlers = ();
+	pub type SessionHandlers = ();
 
 	impl_opaque_keys! {
-        pub struct SessionKeys {
+		pub struct SessionKeys {
 			pub aura: Aura,
 		}
-    }
+	}
 }
 
 /// This runtime version.
@@ -178,8 +174,8 @@
 
 #[derive(codec::Encode, codec::Decode)]
 pub enum XCMPMessage<XAccountId, XBalance> {
-    /// Transfer tokens to the given account from the Parachain account.
-    TransferToken(XAccountId, XBalance),
+	/// Transfer tokens to the given account from the Parachain account.
+	TransferToken(XAccountId, XBalance),
 }
 
 /// The version information used to identify this runtime when compiled natively.
@@ -195,7 +191,7 @@
 
 pub struct DealWithFees;
 impl OnUnbalanced<NegativeImbalance> for DealWithFees {
-	fn on_unbalanceds<B>(mut fees_then_tips: impl Iterator<Item=NegativeImbalance>) {
+	fn on_unbalanceds<B>(mut fees_then_tips: impl Iterator<Item = NegativeImbalance>) {
 		if let Some(fees) = fees_then_tips.next() {
 			// for fees, 100% to treasury
 			let mut split = fees.ration(100, 0);
@@ -245,7 +241,6 @@
 	pub const Version: RuntimeVersion = VERSION;
 	pub const SS58Prefix: u8 = 42;
 }
-
 
 parameter_types! {
 	pub const ChainId: u64 = 8888;
@@ -255,6 +250,7 @@
 	type BlockGasLimit = BlockGasLimit;
 	type FeeCalculator = ();
 	type GasWeightMapping = ();
+	type BlockHashMapping = pallet_ethereum::EthereumBlockHashMapping;
 	type CallOrigin = EnsureAddressTruncated;
 	type WithdrawOrigin = EnsureAddressTruncated;
 	type AddressMapping = HashedAddressMapping<Self::Hashing>;
@@ -268,10 +264,10 @@
 }
 
 pub struct EthereumFindAuthor<F>(core::marker::PhantomData<F>);
-impl<F: FindAuthor<u32>> FindAuthor<H160> for EthereumFindAuthor<F>
-{
-	fn find_author<'a, I>(digests: I) -> Option<H160> where
-		I: 'a + IntoIterator<Item=(ConsensusEngineId, &'a [u8])>
+impl<F: FindAuthor<u32>> FindAuthor<H160> for EthereumFindAuthor<F> {
+	fn find_author<'a, I>(digests: I) -> Option<H160>
+	where
+		I: 'a + IntoIterator<Item = (ConsensusEngineId, &'a [u8])>,
 	{
 		if let Some(author_index) = F::find_author(digests) {
 			let authority_id = Aura::authorities()[author_index as usize].clone();
@@ -292,52 +288,54 @@
 	type EvmSubmitLog = pallet_evm::Pallet<Runtime>;
 }
 
+impl pallet_randomness_collective_flip::Config for Runtime {}
+
 impl system::Config for Runtime {
-    /// The data to be stored in an account.
-    type AccountData = pallet_balances::AccountData<Balance>;
-    /// The identifier used to distinguish between accounts.
-    type AccountId = AccountId;
-    /// The basic call filter to use in dispatchable.
-    type BaseCallFilter = ();
-    /// Maximum number of block number to block hash mappings to keep (oldest pruned first).
-    type BlockHashCount = BlockHashCount;
-    /// The maximum length of a block (in bytes).
+	/// The data to be stored in an account.
+	type AccountData = pallet_balances::AccountData<Balance>;
+	/// The identifier used to distinguish between accounts.
+	type AccountId = AccountId;
+	/// The basic call filter to use in dispatchable.
+	type BaseCallFilter = ();
+	/// Maximum number of block number to block hash mappings to keep (oldest pruned first).
+	type BlockHashCount = BlockHashCount;
+	/// The maximum length of a block (in bytes).
 	type BlockLength = RuntimeBlockLength;
-    /// The index type for blocks.
-    type BlockNumber = BlockNumber;
-    /// The weight of the overhead invoked on the block import process, independent of the extrinsics included in that block.
+	/// The index type for blocks.
+	type BlockNumber = BlockNumber;
+	/// The weight of the overhead invoked on the block import process, independent of the extrinsics included in that block.
 	type BlockWeights = RuntimeBlockWeights;
-    /// The aggregated dispatch type that is available for extrinsics.
-    type Call = Call;
-    /// The weight of database operations that the runtime can invoke.
-    type DbWeight = RocksDbWeight;
-    /// The ubiquitous event type.
-    type Event = Event;
-    /// The type for hashing blocks and tries.
-    type Hash = Hash;
+	/// The aggregated dispatch type that is available for extrinsics.
+	type Call = Call;
+	/// The weight of database operations that the runtime can invoke.
+	type DbWeight = RocksDbWeight;
+	/// The ubiquitous event type.
+	type Event = Event;
+	/// The type for hashing blocks and tries.
+	type Hash = Hash;
 	/// The hashing algorithm used.
-    type Hashing = BlakeTwo256;
-    /// The header type.
-    type Header = generic::Header<BlockNumber, BlakeTwo256>;
-    /// The index type for storing how many extrinsics an account has signed.
-    type Index = Index;
-    /// The lookup mechanism to get account ID from whatever is passed in dispatchers.
-    type Lookup = AccountIdLookup<AccountId, ()>;
-    /// What to do if an account is fully reaped from the system.
-    type OnKilledAccount = ();
-    /// What to do if a new account is created.
-    type OnNewAccount = ();
-    type OnSetCode = cumulus_pallet_parachain_system::ParachainSetCode<Self>;
-    /// The ubiquitous origin type.
-    type Origin = Origin;
- 	/// This type is being generated by `construct_runtime!`.
-    type PalletInfo = PalletInfo;
-    /// This is used as an identifier of the chain. 42 is the generic substrate prefix.
+	type Hashing = BlakeTwo256;
+	/// The header type.
+	type Header = generic::Header<BlockNumber, BlakeTwo256>;
+	/// The index type for storing how many extrinsics an account has signed.
+	type Index = Index;
+	/// The lookup mechanism to get account ID from whatever is passed in dispatchers.
+	type Lookup = AccountIdLookup<AccountId, ()>;
+	/// What to do if an account is fully reaped from the system.
+	type OnKilledAccount = ();
+	/// What to do if a new account is created.
+	type OnNewAccount = ();
+	type OnSetCode = cumulus_pallet_parachain_system::ParachainSetCode<Self>;
+	/// The ubiquitous origin type.
+	type Origin = Origin;
+	/// This type is being generated by `construct_runtime!`.
+	type PalletInfo = PalletInfo;
+	/// This is used as an identifier of the chain. 42 is the generic substrate prefix.
 	type SS58Prefix = SS58Prefix;
 	/// Weight information for the extrinsics of this pallet.
-    type SystemWeightInfo = system::weights::SubstrateWeight<Runtime>;
-    /// Version of the runtime.
-    type Version = Version;
+	type SystemWeightInfo = system::weights::SubstrateWeight<Runtime>;
+	/// Version of the runtime.
+	type Version = Version;
 }
 
 parameter_types! {
@@ -360,6 +358,8 @@
 
 impl pallet_balances::Config for Runtime {
 	type MaxLocks = MaxLocks;
+	type MaxReserves = ();
+	type ReserveIdentifier = [u8; 8];
 	/// The type for recording an account's balance.
 	type Balance = Balance;
 	/// The ubiquitous event type.
@@ -373,7 +373,7 @@
 pub const MICROUNIQUE: Balance = 1_000_000_000;
 pub const MILLIUNIQUE: Balance = 1_000 * MICROUNIQUE;
 pub const CENTIUNIQUE: Balance = 10 * MILLIUNIQUE;
-pub const UNIQUE: Balance      = 100 * CENTIUNIQUE;
+pub const UNIQUE: Balance = 100 * CENTIUNIQUE;
 
 pub const fn deposit(items: u32, bytes: u32) -> Balance {
 	items as Balance * 15 * CENTIUNIQUE + (bytes as Balance) * 6 * CENTIUNIQUE
@@ -437,8 +437,9 @@
 /// Linear implementor of `WeightToFeePolynomial`
 pub struct LinearFee<T>(sp_std::marker::PhantomData<T>);
 
-impl<T> WeightToFeePolynomial for LinearFee<T> where
-	T: BaseArithmetic + From<u32> + Copy + Unsigned
+impl<T> WeightToFeePolynomial for LinearFee<T>
+where
+	T: BaseArithmetic + From<u32> + Copy + Unsigned,
 {
 	type Balance = T;
 
@@ -622,12 +623,12 @@
 	type AssetTransactor = LocalAssetTransactor;
 	type OriginConverter = XcmOriginToTransactDispatchOrigin;
 	type IsReserve = NativeAsset;
-	type IsTeleporter = NativeAsset;	// <- should be enough to allow teleportation of ROC
+	type IsTeleporter = NativeAsset; // <- should be enough to allow teleportation of ROC
 	type LocationInverter = LocationInverter<Ancestry>;
 	type Barrier = Barrier;
 	type Weigher = FixedWeightBounds<UnitWeightCost, Call>;
 	type Trader = UsingComponents<IdentityFee<Balance>, RelayLocation, AccountId, Balances, ()>;
-	type ResponseHandler = ();	// Don't handle responses for now.
+	type ResponseHandler = (); // Don't handle responses for now.
 }
 
 // parameter_types! {
@@ -689,7 +690,6 @@
 	type Event = Event;
 	type WeightInfo = nft_weights::WeightInfo;
 
-	type EvmWithdrawOrigin = EnsureAddressTruncated;
 	type EvmBackwardsAddressMapping = pallet_nft::MapBackwardsAddressTruncated;
 	type EvmAddressMapping = HashedAddressMapping<Self::Hashing>;
 	type CrossAccountId = pallet_nft::BasicCrossAccountId<Self>;
@@ -721,14 +721,13 @@
 
 pub struct Sponsoring;
 impl SponsoringResolve<AccountId, Call> for Sponsoring {
-
-	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId> 
-	where 
-		Call: Dispatchable<Info=DispatchInfo>,
-		Call: IsSubType<pallet_nft::Call<Runtime>>, 
+	fn resolve(who: &AccountId, call: &Call) -> Option<AccountId>
+	where
+		Call: Dispatchable<Info = DispatchInfo>,
+		Call: IsSubType<pallet_nft::Call<Runtime>>,
 		Call: IsSubType<pallet_contracts::Call<Runtime>>,
 		AccountId: AsRef<[u8]>,
-		AccountId: UncheckedFrom<Hash>
+		AccountId: UncheckedFrom<Hash>,
 	{
 		pallet_nft_transaction_payment::Module::<Runtime>::withdraw_type(who, call)
 	}
@@ -736,7 +735,7 @@
 
 type SponsorshipHandler = (
 	pallet_nft::NftSponsorshipHandler<Runtime>,
-    pallet_contract_helpers::ContractSponsorshipHandler<Runtime>,
+	pallet_contract_helpers::ContractSponsorshipHandler<Runtime>,
 );
 
 impl pallet_scheduler::Config for Runtime {
@@ -760,20 +759,20 @@
 impl pallet_contract_helpers::Config for Runtime {}
 
 construct_runtime!(
-    pub enum Runtime where
-        Block = Block,
-        NodeBlock = opaque::Block,
-        UncheckedExtrinsic = UncheckedExtrinsic
-    {
+	pub enum Runtime where
+		Block = Block,
+		NodeBlock = opaque::Block,
+		UncheckedExtrinsic = UncheckedExtrinsic
+	{
 		Balances: pallet_balances::{Pallet, Call, Storage, Config<T>, Event<T>} = 30,
 		Contracts: pallet_contracts::{Pallet, Call, Storage, Event<T>},
 		RandomnessCollectiveFlip: pallet_randomness_collective_flip::{Pallet, Call, Storage},
 		Timestamp: pallet_timestamp::{Pallet, Call, Storage, Inherent},
 		TransactionPayment: pallet_transaction_payment::{Pallet, Storage},
-        Treasury: pallet_treasury::{Pallet, Call, Storage, Config, Event<T>},
+		Treasury: pallet_treasury::{Pallet, Call, Storage, Config, Event<T>},
 		Sudo: pallet_sudo::{Pallet, Call, Storage, Config<T>, Event<T>},
 		System: system::{Pallet, Call, Storage, Config, Event<T>},
-        Vesting: pallet_vesting::{Pallet, Call, Config<T>, Storage, Event<T>},
+		Vesting: pallet_vesting::{Pallet, Call, Config<T>, Storage, Event<T>},
 
 		ParachainSystem: cumulus_pallet_parachain_system::{Pallet, Call, Storage, Inherent, Event<T>, ValidateUnsigned} = 20,
 		ParachainInfo: parachain_info::{Pallet, Storage, Config} = 21,
@@ -793,28 +792,36 @@
 
 
 		// Unique Pallets
-        Inflation: pallet_inflation::{Pallet, Call, Storage},
+		Inflation: pallet_inflation::{Pallet, Call, Storage},
 		Nft: pallet_nft::{Pallet, Call, Config<T>, Storage, Event<T>},
 		Scheduler: pallet_scheduler::{Pallet, Call, Storage, Event<T>},
 		NftPayment: pallet_nft_transaction_payment::{Pallet, Call, Storage},
 		Charging: pallet_nft_charge_transaction::{Pallet, Call, Storage },
 		ContractHelpers: pallet_contract_helpers::{Pallet, Call, Storage},
-    }
+	}
 );
 
 pub struct TransactionConverter;
 
 impl fp_rpc::ConvertTransaction<UncheckedExtrinsic> for TransactionConverter {
 	fn convert_transaction(&self, transaction: pallet_ethereum::Transaction) -> UncheckedExtrinsic {
-		UncheckedExtrinsic::new_unsigned(pallet_ethereum::Call::<Runtime>::transact(transaction).into())
+		UncheckedExtrinsic::new_unsigned(
+			pallet_ethereum::Call::<Runtime>::transact(transaction).into(),
+		)
 	}
 }
 
 impl fp_rpc::ConvertTransaction<opaque::UncheckedExtrinsic> for TransactionConverter {
-	fn convert_transaction(&self, transaction: pallet_ethereum::Transaction) -> opaque::UncheckedExtrinsic {
-		let extrinsic = UncheckedExtrinsic::new_unsigned(pallet_ethereum::Call::<Runtime>::transact(transaction).into());
+	fn convert_transaction(
+		&self,
+		transaction: pallet_ethereum::Transaction,
+	) -> opaque::UncheckedExtrinsic {
+		let extrinsic = UncheckedExtrinsic::new_unsigned(
+			pallet_ethereum::Call::<Runtime>::transact(transaction).into(),
+		);
 		let encoded = extrinsic.encode();
-		opaque::UncheckedExtrinsic::decode(&mut &encoded[..]).expect("Encoded extrinsic is always valid")
+		opaque::UncheckedExtrinsic::decode(&mut &encoded[..])
+			.expect("Encoded extrinsic is always valid")
 	}
 }
 
@@ -830,13 +837,13 @@
 pub type BlockId = generic::BlockId<Block>;
 /// The SignedExtension to the basic transaction logic.
 pub type SignedExtra = (
-    system::CheckSpecVersion<Runtime>,
-    // system::CheckTxVersion<Runtime>,
-    system::CheckGenesis<Runtime>,
-    system::CheckEra<Runtime>,
-    system::CheckNonce<Runtime>,
-    system::CheckWeight<Runtime>,
-    pallet_nft_charge_transaction::ChargeTransactionPayment<Runtime>,
+	system::CheckSpecVersion<Runtime>,
+	// system::CheckTxVersion<Runtime>,
+	system::CheckGenesis<Runtime>,
+	system::CheckEra<Runtime>,
+	system::CheckNonce<Runtime>,
+	system::CheckWeight<Runtime>,
+	pallet_nft_charge_transaction::ChargeTransactionPayment<Runtime>,
 	pallet_contract_helpers::ContractHelpersExtension<Runtime>,
 );
 /// Unchecked extrinsic type as expected by this runtime.
@@ -845,11 +852,11 @@
 pub type CheckedExtrinsic = generic::CheckedExtrinsic<AccountId, Call, SignedExtra>;
 /// Executive: handles dispatch to the various modules.
 pub type Executive = frame_executive::Executive<
-    Runtime,
-    Block,
-    frame_system::ChainContext<Runtime>,
-    Runtime,
-    AllPallets,
+	Runtime,
+	Block,
+	frame_system::ChainContext<Runtime>,
+	Runtime,
+	AllPallets,
 >;
 
 impl_opaque_keys! {
@@ -867,59 +874,59 @@
 		}
 	}
 
-    impl sp_api::Core<Block> for Runtime {
-        fn version() -> RuntimeVersion {
-            VERSION
-        }
+	impl sp_api::Core<Block> for Runtime {
+		fn version() -> RuntimeVersion {
+			VERSION
+		}
 
-        fn execute_block(block: Block) {
-            Executive::execute_block(block)
-        }
+		fn execute_block(block: Block) {
+			Executive::execute_block(block)
+		}
 
-        fn initialize_block(header: &<Block as BlockT>::Header) {
-            Executive::initialize_block(header)
-        }
-    }
+		fn initialize_block(header: &<Block as BlockT>::Header) {
+			Executive::initialize_block(header)
+		}
+	}
 
-    impl sp_api::Metadata<Block> for Runtime {
-        fn metadata() -> OpaqueMetadata {
-            Runtime::metadata().into()
-        }
-    }
+	impl sp_api::Metadata<Block> for Runtime {
+		fn metadata() -> OpaqueMetadata {
+			Runtime::metadata().into()
+		}
+	}
 
-    impl sp_block_builder::BlockBuilder<Block> for Runtime {
-        fn apply_extrinsic(extrinsic: <Block as BlockT>::Extrinsic) -> ApplyExtrinsicResult {
-            Executive::apply_extrinsic(extrinsic)
-        }
+	impl sp_block_builder::BlockBuilder<Block> for Runtime {
+		fn apply_extrinsic(extrinsic: <Block as BlockT>::Extrinsic) -> ApplyExtrinsicResult {
+			Executive::apply_extrinsic(extrinsic)
+		}
 
-        fn finalize_block() -> <Block as BlockT>::Header {
-            Executive::finalize_block()
-        }
+		fn finalize_block() -> <Block as BlockT>::Header {
+			Executive::finalize_block()
+		}
 
-        fn inherent_extrinsics(data: sp_inherents::InherentData) -> Vec<<Block as BlockT>::Extrinsic> {
-            data.create_extrinsics()
-        }
+		fn inherent_extrinsics(data: sp_inherents::InherentData) -> Vec<<Block as BlockT>::Extrinsic> {
+			data.create_extrinsics()
+		}
 
-        fn check_inherents(
-            block: Block,
-            data: sp_inherents::InherentData,
-        ) -> sp_inherents::CheckInherentsResult {
-            data.check_extrinsics(&block)
-        }
+		fn check_inherents(
+			block: Block,
+			data: sp_inherents::InherentData,
+		) -> sp_inherents::CheckInherentsResult {
+			data.check_extrinsics(&block)
+		}
 
-        // fn random_seed() -> <Block as BlockT>::Hash {
-        //     RandomnessCollectiveFlip::random_seed().0
-        // }
-    }
+		// fn random_seed() -> <Block as BlockT>::Hash {
+		//     RandomnessCollectiveFlip::random_seed().0
+		// }
+	}
 
-    impl sp_transaction_pool::runtime_api::TaggedTransactionQueue<Block> for Runtime {
-        fn validate_transaction(
-            source: TransactionSource,
-            tx: <Block as BlockT>::Extrinsic,
-        ) -> TransactionValidity {
-            Executive::validate_transaction(source, tx)
-        }
-    }
+	impl sp_transaction_pool::runtime_api::TaggedTransactionQueue<Block> for Runtime {
+		fn validate_transaction(
+			source: TransactionSource,
+			tx: <Block as BlockT>::Extrinsic,
+		) -> TransactionValidity {
+			Executive::validate_transaction(source, tx)
+		}
+	}
 
 	impl sp_offchain::OffchainWorkerApi<Block> for Runtime {
 		fn offchain_worker(header: &<Block as BlockT>::Header) {
@@ -980,7 +987,7 @@
 				gas_limit.low_u64(),
 				gas_price,
 				nonce,
-				config.as_ref().unwrap_or(<Runtime as pallet_evm::Config>::config()),
+				config.as_ref().unwrap_or_else(|| <Runtime as pallet_evm::Config>::config()),
 			).map_err(|err| err.into())
 		}
 
@@ -1008,7 +1015,7 @@
 				gas_limit.low_u64(),
 				gas_price,
 				nonce,
-				config.as_ref().unwrap_or(<Runtime as pallet_evm::Config>::config()),
+				config.as_ref().unwrap_or_else(|| <Runtime as pallet_evm::Config>::config()),
 			).map_err(|err| err.into())
 		}
 
@@ -1119,7 +1126,7 @@
 		}
 	}
 
-    #[cfg(feature = "runtime-benchmarks")]
+	#[cfg(feature = "runtime-benchmarks")]
 	impl frame_benchmarking::Benchmark<Block> for Runtime {
 		fn dispatch_benchmark(
 			config: frame_benchmarking::BenchmarkConfig
@@ -1151,7 +1158,31 @@
 	}
 }
 
+struct CheckInherents;
+
+impl cumulus_pallet_parachain_system::CheckInherents<Block> for CheckInherents {
+	fn check_inherents(
+		block: &Block,
+		relay_state_proof: &cumulus_pallet_parachain_system::RelayChainStateProof,
+	) -> sp_inherents::CheckInherentsResult {
+		let relay_chain_slot = relay_state_proof
+			.read_slot()
+			.expect("Could not read the relay chain slot from the proof");
+
+		let inherent_data =
+			cumulus_primitives_timestamp::InherentDataProvider::from_relay_chain_slot_and_duration(
+				relay_chain_slot,
+				sp_std::time::Duration::from_secs(6),
+			)
+			.create_inherent_data()
+			.expect("Could not create the timestamp inherent data");
+
+		inherent_data.check_extrinsics(&block)
+	}
+}
+
 cumulus_pallet_parachain_system::register_validate_block!(
-	Runtime,
-	cumulus_pallet_aura_ext::BlockExecutor::<Runtime, Executive>,
+	Runtime = Runtime,
+	BlockExecutor = cumulus_pallet_aura_ext::BlockExecutor::<Runtime, Executive>,
+	CheckInherents = CheckInherents,
 );
modifiedruntime/src/nft_weights.rsdiffbeforeafterboth
--- a/runtime/src/nft_weights.rs
+++ b/runtime/src/nft_weights.rs
@@ -8,154 +8,154 @@
 pub struct WeightInfo;
 impl pallet_nft::WeightInfo for WeightInfo {
 	fn create_collection() -> Weight {
-		(70_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(7 as Weight))
-			.saturating_add(DbWeight::get().writes(5 as Weight))
+		70_000_000_u64
+			.saturating_add(DbWeight::get().reads(7_u64))
+			.saturating_add(DbWeight::get().writes(5_u64))
 	}
 	fn destroy_collection() -> Weight {
-		(90_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(2 as Weight))
-			.saturating_add(DbWeight::get().writes(5 as Weight))
+		90_000_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(5_u64))
 	}
 	fn add_to_white_list() -> Weight {
-		(30_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(3 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn remove_from_white_list() -> Weight {
-		(35_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(3 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
+		30_000_000_u64
+			.saturating_add(DbWeight::get().reads(3_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn remove_from_white_list() -> Weight {
+		35_000_000_u64
+			.saturating_add(DbWeight::get().reads(3_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn set_public_access_mode() -> Weight {
-		(27_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(1 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
+		27_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn set_mint_permission() -> Weight {
-		(27_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(1 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
+		27_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn change_collection_owner() -> Weight {
-		(27_000_000 as Weight)
-			.saturating_add(DbWeight::get().reads(1 as Weight))
-			.saturating_add(DbWeight::get().writes(1 as Weight))
+		27_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn add_collection_admin() -> Weight {
-        (32_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(3 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
+		32_000_000_u64
+			.saturating_add(DbWeight::get().reads(3_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
 	}
 	fn remove_collection_admin() -> Weight {
-		(50_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_collection_sponsor() -> Weight {
-		(32_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }  
-    fn confirm_sponsorship() -> Weight {
-		(22_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(1 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }  
-    fn remove_collection_sponsor() -> Weight {
-		(24_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(1 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }  
-    fn create_item(s: usize, ) -> Weight {
-        (130_000_000 as Weight)
-            .saturating_add((2135 as Weight).saturating_mul(s as Weight).saturating_mul(500 as Weight)) // 500 is temparary multiplier, fee for storage
-            .saturating_add(DbWeight::get().reads(10 as Weight))
-            .saturating_add(DbWeight::get().writes(8 as Weight))
-    }  
-    fn burn_item() -> Weight {
-		(170_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(9 as Weight))
-            .saturating_add(DbWeight::get().writes(7 as Weight))
-    }  
-    fn transfer() -> Weight {
-        (125_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(7 as Weight))
-            .saturating_add(DbWeight::get().writes(7 as Weight))
-    }  
-    fn approve() -> Weight {
-        (45_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(3 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn transfer_from() -> Weight {
-        (150_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(9 as Weight))
-            .saturating_add(DbWeight::get().writes(8 as Weight))
-    }
-    fn set_offchain_schema() -> Weight {
-        (33_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_const_on_chain_schema() -> Weight {
-        (11_100_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_variable_on_chain_schema() -> Weight {
-        (11_100_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_variable_meta_data() -> Weight {
-        (17_500_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn enable_contract_sponsoring() -> Weight {
-        (13_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(1 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_schema_version() -> Weight {
-        (8_500_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_chain_limits() -> Weight {
-        (1_300_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
-    fn set_contract_sponsoring_rate_limit() -> Weight {
-        (3_500_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }    
-    fn set_variable_meta_data_sponsoring_rate_limit() -> Weight {
-        (3_500_000 as Weight)
-            .saturating_add(DbWeight::get().reads(1 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }
-    fn toggle_contract_white_list() -> Weight {
-        (3_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }    
-    fn add_to_contract_white_list() -> Weight {
-        (3_000_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }    
-    fn remove_from_contract_white_list() -> Weight {
-        (3_200_000 as Weight)
-            .saturating_add(DbWeight::get().reads(0 as Weight))
-            .saturating_add(DbWeight::get().writes(2 as Weight))
-    }
-    fn set_collection_limits() -> Weight {
-        (8_900_000 as Weight)
-            .saturating_add(DbWeight::get().reads(2 as Weight))
-            .saturating_add(DbWeight::get().writes(1 as Weight))
-    }
+		50_000_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_collection_sponsor() -> Weight {
+		32_000_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn confirm_sponsorship() -> Weight {
+		22_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn remove_collection_sponsor() -> Weight {
+		24_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn create_item(s: usize) -> Weight {
+		130_000_000_u64
+			.saturating_add(2135_u64.saturating_mul(s as Weight).saturating_mul(500_u64)) // 500 is temparary multiplier, fee for storage
+			.saturating_add(DbWeight::get().reads(10_u64))
+			.saturating_add(DbWeight::get().writes(8_u64))
+	}
+	fn burn_item() -> Weight {
+		170_000_000_u64
+			.saturating_add(DbWeight::get().reads(9_u64))
+			.saturating_add(DbWeight::get().writes(7_u64))
+	}
+	fn transfer() -> Weight {
+		125_000_000_u64
+			.saturating_add(DbWeight::get().reads(7_u64))
+			.saturating_add(DbWeight::get().writes(7_u64))
+	}
+	fn approve() -> Weight {
+		45_000_000_u64
+			.saturating_add(DbWeight::get().reads(3_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn transfer_from() -> Weight {
+		150_000_000_u64
+			.saturating_add(DbWeight::get().reads(9_u64))
+			.saturating_add(DbWeight::get().writes(8_u64))
+	}
+	fn set_offchain_schema() -> Weight {
+		33_000_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_const_on_chain_schema() -> Weight {
+		11_100_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_variable_on_chain_schema() -> Weight {
+		11_100_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_variable_meta_data() -> Weight {
+		17_500_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn enable_contract_sponsoring() -> Weight {
+		13_000_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_schema_version() -> Weight {
+		8_500_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_chain_limits() -> Weight {
+		1_300_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
+	fn set_contract_sponsoring_rate_limit() -> Weight {
+		3_500_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn set_variable_meta_data_sponsoring_rate_limit() -> Weight {
+		3_500_000_u64
+			.saturating_add(DbWeight::get().reads(1_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn toggle_contract_white_list() -> Weight {
+		3_000_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn add_to_contract_white_list() -> Weight {
+		3_000_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn remove_from_contract_white_list() -> Weight {
+		3_200_000_u64
+			.saturating_add(DbWeight::get().reads(0_u64))
+			.saturating_add(DbWeight::get().writes(2_u64))
+	}
+	fn set_collection_limits() -> Weight {
+		8_900_000_u64
+			.saturating_add(DbWeight::get().reads(2_u64))
+			.saturating_add(DbWeight::get().writes(1_u64))
+	}
 }
modifiedruntime_types.jsondiffbeforeafterboth
--- a/runtime_types.json
+++ b/runtime_types.json
@@ -11,6 +11,10 @@
         "WhiteList"
       ]
     },
+    "CallSpec": {
+      "Module": "u32",
+      "Method": "u32"
+    },
     "DecimalPoints": "u8",
     "CollectionMode": {
       "_enum": {
addedtests/.eslintrc.jsondiffbeforeafterboth
--- /dev/null
+++ b/tests/.eslintrc.json
@@ -0,0 +1,68 @@
+{
+    "env": {
+        "browser": true,
+        "es2020": true
+    },
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended"
+    ],
+    "parser": "@typescript-eslint/parser",
+    "parserOptions": {
+        "ecmaVersion": 11,
+        "sourceType": "module"
+    },
+    "plugins": [
+        "@typescript-eslint"
+    ],
+    "rules": {
+        "indent": [
+            "error",
+            2,
+            {
+                "SwitchCase": 1
+            }
+        ],
+        "function-call-argument-newline": [
+            "error",
+            "consistent"
+        ],
+        "function-paren-newline": [
+            "error",
+            "multiline"
+        ],
+        "linebreak-style": [
+            "error",
+            "unix"
+        ],
+        "quotes": [
+            "error",
+            "single",
+            {
+                "avoidEscape": true
+            }
+        ],
+        "semi": [
+            "error",
+            "always"
+        ],
+        "@typescript-eslint/explicit-module-boundary-types": "off",
+        "comma-dangle": [
+            "error",
+            "always-multiline"
+        ],
+        "no-unused-vars": "off",
+        "@typescript-eslint/no-empty-function": "off",
+        "@typescript-eslint/no-non-null-assertion": "off",
+        "@typescript-eslint/no-explicit-any": "off",
+        "@typescript-eslint/no-unused-vars": "warn",
+        "no-async-promise-executor": "warn",
+        "@typescript-eslint/no-empty-interface": "off",
+        "prefer-const": [
+            "error",
+            {
+                "destructuring": "all"
+            }
+        ]
+    }
+}
\ No newline at end of file
modifiedtests/package.jsondiffbeforeafterboth
--- a/tests/package.json
+++ b/tests/package.json
@@ -14,14 +14,20 @@
     "mocha": "^8.3.2",
     "ts-node": "^9.1.1",
     "tslint": "^6.1.3",
-    "typescript": "^4.2.4"
+    "typescript": "^4.2.4",
+    "eslint": "^7.28.0",
+    "@types/node": "^14.14.12",
+    "@typescript-eslint/eslint-plugin": "^3.4.0",
+    "@typescript-eslint/parser": "^3.4.0"
   },
   "scripts": {
+    "lint": "eslint --ext .ts,.js src/",
+    "fix": "eslint --ext .ts,.js src/ --fix",
     "test": "mocha --timeout 9999999 -r ts-node/register ./**/*.test.ts",
     "testEth": "mocha --timeout 9999999 -r ts-node/register ./**/eth/**/*.test.ts",
     "load": "mocha --timeout 9999999 -r ts-node/register ./**/*.load.ts",
     "loadTransfer": "ts-node src/transfer.nload.ts",
-    "testCollision": "mocha --timeout 9999999 -r ts-node/register ./src/collision-tests/*.test.ts", 
+    "testCollision": "mocha --timeout 9999999 -r ts-node/register ./src/collision-tests/*.test.ts",
     "testAddCollectionAdmin": "mocha --timeout 9999999 -r ts-node/register ./**/addCollectionAdmin.test.ts",
     "testSetSchemaVersion": "mocha --timeout 9999999 -r ts-node/register ./**/setSchemaVersion.test.ts",
     "testSetVariableMetaData": "mocha --timeout 9999999 -r ts-node/register ./**/setVariableMetaData.test.ts",
modifiedtests/src/addToContractWhiteList.test.tsdiffbeforeafterboth
--- a/tests/src/addToContractWhiteList.test.ts
+++ b/tests/src/addToContractWhiteList.test.ts
@@ -3,25 +3,25 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import chai from "chai";
+import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";
-import privateKey from "./substrate/privateKey";
+import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from './substrate/substrate-api';
+import privateKey from './substrate/privateKey';
 import {
-  deployFlipper
-} from "./util/contracthelpers";
+  deployFlipper,
+} from './util/contracthelpers';
 import {
-  getGenericResult, normalizeAccountId
-} from "./util/helpers"
+  getGenericResult,
+} from './util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
 
 describe('Integration Test addToContractWhiteList', () => {
 
-  it(`Add an address to a contract white list`, async () => {
+  it('Add an address to a contract white list', async () => {
     await usingApi(async api => {
-      const bob = privateKey("//Bob");
+      const bob = privateKey('//Bob');
       const [contract, deployer] = await deployFlipper(api);
 
       const whiteListedBefore = (await api.query.nft.contractWhiteList(contract.address, bob.address)).toJSON();
@@ -35,9 +35,9 @@
     });
   });
 
-  it(`Adding same address to white list repeatedly should not produce errors`, async () => {
+  it('Adding same address to white list repeatedly should not produce errors', async () => {
     await usingApi(async api => {
-      const bob = privateKey("//Bob");
+      const bob = privateKey('//Bob');
       const [contract, deployer] = await deployFlipper(api);
 
       const whiteListedBefore = (await api.query.nft.contractWhiteList(contract.address, bob.address)).toJSON();
@@ -58,11 +58,11 @@
 
 describe('Negative Integration Test addToContractWhiteList', () => {
 
-  it(`Add an address to a white list of a non-contract`, async () => {
+  it('Add an address to a white list of a non-contract', async () => {
     await usingApi(async api => {
-      const alice = privateKey("//Bob");
-      const bob = privateKey("//Bob");
-      const charlieGuineaPig = privateKey("//Charlie");
+      const alice = privateKey('//Bob');
+      const bob = privateKey('//Bob');
+      const charlieGuineaPig = privateKey('//Charlie');
 
       const whiteListedBefore = (await api.query.nft.contractWhiteList(charlieGuineaPig.address, bob.address)).toJSON();
       const addTx = api.tx.nft.addToContractWhiteList(charlieGuineaPig.address, bob.address);
@@ -74,10 +74,10 @@
     });
   });
 
-  it(`Add to a contract white list using a non-owner address`, async () => {
+  it('Add to a contract white list using a non-owner address', async () => {
     await usingApi(async api => {
-      const bob = privateKey("//Bob");
-      const [contract, deployer] = await deployFlipper(api);
+      const bob = privateKey('//Bob');
+      const [contract] = await deployFlipper(api);
 
       const whiteListedBefore = (await api.query.nft.contractWhiteList(contract.address, bob.address)).toJSON();
       const addTx = api.tx.nft.addToContractWhiteList(contract.address, bob.address);
modifiedtests/src/addToWhiteList.test.tsdiffbeforeafterboth
--- a/tests/src/addToWhiteList.test.ts
+++ b/tests/src/addToWhiteList.test.ts
@@ -1,87 +1,87 @@
-//
-// This file is subject to the terms and conditions defined in
-// file 'LICENSE', which is part of this source code package.
-//
-
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from './substrate/privateKey';
-import usingApi, { submitTransactionExpectFailAsync } from './substrate/substrate-api';
-import {
-  addToWhiteListExpectSuccess,
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  destroyCollectionExpectSuccess,
-  enablePublicMintingExpectSuccess,
-  enableWhiteListExpectSuccess,
-  normalizeAccountId,
-} from './util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-
-describe('Integration Test ext. addToWhiteList()', () => {
-
-  before(async () => {
-    await usingApi(async (api) => {
-      Alice = privateKey('//Alice');
-      Bob = privateKey('//Bob');
-    });
-  });
-
-  it('Execute the extrinsic with parameters: Collection ID and address to add to the white list', async () => {
-    const collectionId = await createCollectionExpectSuccess();
-    await addToWhiteListExpectSuccess(Alice, collectionId, Bob.address);
-  });
-
-  it('Whitelisted minting: list restrictions', async () => {
-    const collectionId = await createCollectionExpectSuccess();
-    await addToWhiteListExpectSuccess(Alice, collectionId, Bob.address);
-    await enableWhiteListExpectSuccess(Alice, collectionId);
-    await enablePublicMintingExpectSuccess(Alice, collectionId);
-    await createItemExpectSuccess(Bob, collectionId, 'NFT', Bob.address);
-  });
-});
-
-describe('Negative Integration Test ext. addToWhiteList()', () => {
-
-  it('White list an address in the collection that does not exist', async () => {
-    await usingApi(async (api) => {
-      // tslint:disable-next-line: no-bitwise
-      const collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
-      const Bob = privateKey('//Bob');
-
-      const tx = api.tx.nft.addToWhiteList(collectionId, normalizeAccountId(Bob.address));
-      await expect(submitTransactionExpectFailAsync(Alice, tx)).to.be.rejected;
-    });
-  });
-
-  it('White list an address in the collection that was destroyed', async () => {
-    await usingApi(async (api) => {
-      const Alice = privateKey('//Alice');
-      const Bob = privateKey('//Bob');
-      // tslint:disable-next-line: no-bitwise
-      const collectionId = await createCollectionExpectSuccess();
-      await destroyCollectionExpectSuccess(collectionId);
-      const tx = api.tx.nft.addToWhiteList(collectionId, normalizeAccountId(Bob.address));
-      await expect(submitTransactionExpectFailAsync(Alice, tx)).to.be.rejected;
-    });
-  });
-
-  it('White list an address in the collection that does not have white list access enabled', async () => {
-    await usingApi(async (api) => {
-      const Alice = privateKey('//Alice');
-      const Ferdie = privateKey('//Ferdie');
-      const collectionId = await createCollectionExpectSuccess();
-      await enableWhiteListExpectSuccess(Alice, collectionId);
-      await enablePublicMintingExpectSuccess(Alice, collectionId);
-      const tx = api.tx.nft.createItem(collectionId, normalizeAccountId(Ferdie.address), 'NFT');
-      await expect(submitTransactionExpectFailAsync(Ferdie, tx)).to.be.rejected;
-    });
-  });
-
-});
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from './substrate/privateKey';
+import usingApi, { submitTransactionExpectFailAsync } from './substrate/substrate-api';
+import {
+  addToWhiteListExpectSuccess,
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+  destroyCollectionExpectSuccess,
+  enablePublicMintingExpectSuccess,
+  enableWhiteListExpectSuccess,
+  normalizeAccountId,
+} from './util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+
+describe('Integration Test ext. addToWhiteList()', () => {
+
+  before(async () => {
+    await usingApi(async () => {
+      Alice = privateKey('//Alice');
+      Bob = privateKey('//Bob');
+    });
+  });
+
+  it('Execute the extrinsic with parameters: Collection ID and address to add to the white list', async () => {
+    const collectionId = await createCollectionExpectSuccess();
+    await addToWhiteListExpectSuccess(Alice, collectionId, Bob.address);
+  });
+
+  it('Whitelisted minting: list restrictions', async () => {
+    const collectionId = await createCollectionExpectSuccess();
+    await addToWhiteListExpectSuccess(Alice, collectionId, Bob.address);
+    await enableWhiteListExpectSuccess(Alice, collectionId);
+    await enablePublicMintingExpectSuccess(Alice, collectionId);
+    await createItemExpectSuccess(Bob, collectionId, 'NFT', Bob.address);
+  });
+});
+
+describe('Negative Integration Test ext. addToWhiteList()', () => {
+
+  it('White list an address in the collection that does not exist', async () => {
+    await usingApi(async (api) => {
+      // tslint:disable-next-line: no-bitwise
+      const collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
+      const Bob = privateKey('//Bob');
+
+      const tx = api.tx.nft.addToWhiteList(collectionId, normalizeAccountId(Bob.address));
+      await expect(submitTransactionExpectFailAsync(Alice, tx)).to.be.rejected;
+    });
+  });
+
+  it('White list an address in the collection that was destroyed', async () => {
+    await usingApi(async (api) => {
+      const Alice = privateKey('//Alice');
+      const Bob = privateKey('//Bob');
+      // tslint:disable-next-line: no-bitwise
+      const collectionId = await createCollectionExpectSuccess();
+      await destroyCollectionExpectSuccess(collectionId);
+      const tx = api.tx.nft.addToWhiteList(collectionId, normalizeAccountId(Bob.address));
+      await expect(submitTransactionExpectFailAsync(Alice, tx)).to.be.rejected;
+    });
+  });
+
+  it('White list an address in the collection that does not have white list access enabled', async () => {
+    await usingApi(async (api) => {
+      const Alice = privateKey('//Alice');
+      const Ferdie = privateKey('//Ferdie');
+      const collectionId = await createCollectionExpectSuccess();
+      await enableWhiteListExpectSuccess(Alice, collectionId);
+      await enablePublicMintingExpectSuccess(Alice, collectionId);
+      const tx = api.tx.nft.createItem(collectionId, normalizeAccountId(Ferdie.address), 'NFT');
+      await expect(submitTransactionExpectFailAsync(Ferdie, tx)).to.be.rejected;
+    });
+  });
+
+});
modifiedtests/src/approve.test.tsdiffbeforeafterboth
--- a/tests/src/approve.test.ts
+++ b/tests/src/approve.test.ts
@@ -82,7 +82,7 @@
   let Charlie: IKeyringPair;
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       Alice = privateKey('//Alice');
       Bob = privateKey('//Bob');
       Charlie = privateKey('//Charlie');
modifiedtests/src/block-production.test.tsdiffbeforeafterboth
--- a/tests/src/block-production.test.ts
+++ b/tests/src/block-production.test.ts
@@ -3,14 +3,15 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import usingApi from "./substrate/substrate-api";
-import { expect } from "chai";
-import { ApiPromise } from "@polkadot/api";
+import usingApi from './substrate/substrate-api';
+import { expect } from 'chai';
+import { ApiPromise } from '@polkadot/api';
 
 const BlockTimeMs = 12000;
 const ToleranceMs = 1000;
 
-async function getBlocks(api: ApiPromise): Promise<number[]> {
+/* eslint no-async-promise-executor: "off" */
+function getBlocks(api: ApiPromise): Promise<number[]> {
   return new Promise<number[]>(async (resolve, reject) => {
     const blockNumbers: number[] = [];
     setTimeout(() => reject('Block production test failed due to timeout.'), BlockTimeMs + ToleranceMs);
@@ -27,7 +28,7 @@
 describe('Block Production smoke test', () => {
   it('Node produces new blocks', async () => {
     await usingApi(async (api) => {
-      let blocks: number[] | undefined = await getBlocks(api);
+      const blocks: number[] | undefined = await getBlocks(api);
       expect(blocks[0]).to.be.lessThan(blocks[1]);
     });
   });
modifiedtests/src/burnItem.test.tsdiffbeforeafterboth
--- a/tests/src/burnItem.test.ts
+++ b/tests/src/burnItem.test.ts
@@ -4,16 +4,15 @@
 //
 
 import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from './substrate/substrate-api';
-import { Keyring } from "@polkadot/api";
-import { IKeyringPair } from "@polkadot/types/types";
+import { Keyring } from '@polkadot/api';
+import { IKeyringPair } from '@polkadot/types/types';
 import { 
   createCollectionExpectSuccess, 
   createItemExpectSuccess,
   getGenericResult,
   destroyCollectionExpectSuccess,
-  normalizeAccountId
+  normalizeAccountId,
 } from './util/helpers';
-import { nullPublicKey } from "./accounts";
 
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
@@ -25,10 +24,10 @@
 
 describe('integration test: ext. burnItem():', () => {
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const keyring = new Keyring({ type: 'sr25519' });
-      alice = keyring.addFromUri(`//Alice`);
-      bob = keyring.addFromUri(`//Bob`);
+      alice = keyring.addFromUri('//Alice');
+      bob = keyring.addFromUri('//Bob');
     });
   });
 
@@ -139,10 +138,10 @@
 
 describe('Negative integration test: ext. burnItem():', () => {
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const keyring = new Keyring({ type: 'sr25519' });
-      alice = keyring.addFromUri(`//Alice`);
-      bob = keyring.addFromUri(`//Bob`);
+      alice = keyring.addFromUri('//Alice');
+      bob = keyring.addFromUri('//Bob');
     });
   });
 
modifiedtests/src/change-collection-owner.test.tsdiffbeforeafterboth
--- a/tests/src/change-collection-owner.test.ts
+++ b/tests/src/change-collection-owner.test.ts
@@ -6,8 +6,8 @@
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from './substrate/privateKey';
-import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";
-import { createCollectionExpectSuccess, createCollectionExpectFailure, normalizeAccountId } from "./util/helpers";
+import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from './substrate/substrate-api';
+import { createCollectionExpectSuccess, normalizeAccountId } from './util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
@@ -32,7 +32,7 @@
 });
 
 describe('Negative Integration Test changeCollectionOwner(collection_id, new_owner):', () => {
-  it(`Not owner can't change owner.`, async () => {
+  it('Not owner can\'t change owner.', async () => {
     await usingApi(async api => {
       const collectionId = await createCollectionExpectSuccess();
       const alice = privateKey('//Alice');
@@ -48,7 +48,7 @@
       await createCollectionExpectSuccess();
     });
   });
-  it(`Can't change owner of not existing collection.`, async () => {
+  it('Can\'t change owner of not existing collection.', async () => {
     await usingApi(async api => {
       const collectionId = (1<<32) - 1;
       const alice = privateKey('//Alice');
modifiedtests/src/check-event/createItemEvent.test.tsdiffbeforeafterboth
--- a/tests/src/check-event/createItemEvent.test.ts
+++ b/tests/src/check-event/createItemEvent.test.ts
@@ -10,7 +10,7 @@
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from '../substrate/privateKey';
 import usingApi, {submitTransactionAsync} from '../substrate/substrate-api';
-import { createCollectionExpectSuccess, createItemExpectSuccess, nftEventMessage } from '../util/helpers';
+import { createCollectionExpectSuccess, nftEventMessage } from '../util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
modifiedtests/src/check-event/createMultipleItemsEvent.test.tsdiffbeforeafterboth
--- a/tests/src/check-event/createMultipleItemsEvent.test.ts
+++ b/tests/src/check-event/createMultipleItemsEvent.test.ts
@@ -10,7 +10,7 @@
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from '../substrate/privateKey';
 import usingApi, {submitTransactionAsync} from '../substrate/substrate-api';
-import { createCollectionExpectSuccess, createItemExpectSuccess, nftEventMessage } from '../util/helpers';
+import { createCollectionExpectSuccess, nftEventMessage } from '../util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
modifiedtests/src/collision-tests/admVsOwnerChanges.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/admVsOwnerChanges.test.ts
+++ b/tests/src/collision-tests/admVsOwnerChanges.test.ts
@@ -1,55 +1,50 @@
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import { alicesPublicKey, bobsPublicKey } from '../accounts';
-import getBalance from '../substrate/get-balance';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import waitNewBlocks from '../substrate/wait-new-blocks';
-import {
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  setCollectionSponsorExpectSuccess,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Admin vs Owner changes token: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('The collection admin changes the owner of the token and in the same block the current owner transfers the token to another address ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTxBob = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);
-      await submitTransactionAsync(Alice, changeAdminTxBob);
-      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
-      const changeAdminTxFerdie = api.tx.nft.addCollectionAdmin(collectionId, Ferdie.address);
-      await submitTransactionAsync(Bob, changeAdminTxFerdie);
-      const itemId = await createItemExpectSuccess(Ferdie, collectionId, 'NFT');
-      //
-      const changeOwner = api.tx.nft.transferFrom(Ferdie.address, Bob.address, collectionId, itemId, 1);
-      const approve = api.tx.nft.approve(Bob.address, collectionId, itemId, 1);
-      const sendItem = api.tx.nft.transfer(Alice.address, collectionId, itemId, 1);
-      await Promise.all
-      ([
-        changeOwner.signAndSend(Alice),
-        approve.signAndSend(Bob),
-        sendItem.signAndSend(Ferdie),
-      ]);
-      const itemBefore: any = await api.query.nft.nftItemList(collectionId, itemId);
-      expect(itemBefore.Owner).not.to.be.eq(Bob.address);
-      await timeoutPromise(20000);
-    });
-  });
-});
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Admin vs Owner changes token: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('The collection admin changes the owner of the token and in the same block the current owner transfers the token to another address ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTxBob = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);
+      await submitTransactionAsync(Alice, changeAdminTxBob);
+      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
+      const changeAdminTxFerdie = api.tx.nft.addCollectionAdmin(collectionId, Ferdie.address);
+      await submitTransactionAsync(Bob, changeAdminTxFerdie);
+      const itemId = await createItemExpectSuccess(Ferdie, collectionId, 'NFT');
+      //
+      const changeOwner = api.tx.nft.transferFrom(Ferdie.address, Bob.address, collectionId, itemId, 1);
+      const approve = api.tx.nft.approve(Bob.address, collectionId, itemId, 1);
+      const sendItem = api.tx.nft.transfer(Alice.address, collectionId, itemId, 1);
+      await Promise.all([
+        changeOwner.signAndSend(Alice),
+        approve.signAndSend(Bob),
+        sendItem.signAndSend(Ferdie),
+      ]);
+      const itemBefore: any = await api.query.nft.nftItemList(collectionId, itemId);
+      expect(itemBefore.Owner).not.to.be.eq(Bob.address);
+      await timeoutPromise(20000);
+    });
+  });
+});
modifiedtests/src/collision-tests/admVsOwnerData.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/admVsOwnerData.test.ts
+++ b/tests/src/collision-tests/admVsOwnerData.test.ts
@@ -1,54 +1,47 @@
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import { alicesPublicKey, bobsPublicKey } from '../accounts';
-import getBalance from '../substrate/get-balance';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import waitNewBlocks from '../substrate/wait-new-blocks';
-import {
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  setCollectionSponsorExpectSuccess,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Admin vs Owner changes the data in the token: ', () => {
-  it('The collection admin changes the data in the token and in the same block the token owner also changes the data in it ', async () => {
-    await usingApi(async (api) => {
-      const AliceData = 1;
-      const BobData = 2;
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTx = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);
-      await submitTransactionAsync(Alice, changeAdminTx);
-      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
-      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
-      //
-      // tslint:disable-next-line: max-line-length
-      const AliceTx = api.tx.nft.setVariableMetaData(collectionId, itemId, AliceData.toString());
-      // tslint:disable-next-line: max-line-length
-      const BobTx = api.tx.nft.setVariableMetaData(collectionId, itemId, BobData.toString());
-      await Promise.all
-      ([
-        AliceTx.signAndSend(Alice),
-        BobTx.signAndSend(Bob),
-      ]);
-      const item: any = await api.query.nft.nftItemList(collectionId, itemId);
-      expect(item.VariableData).not.to.be.eq(null); // Pseudo-random selection of one of two values
-      await timeoutPromise(20000);
-    });
-  });
-});
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+  });
+});
+
+describe('Admin vs Owner changes the data in the token: ', () => {
+  it('The collection admin changes the data in the token and in the same block the token owner also changes the data in it ', async () => {
+    await usingApi(async (api) => {
+      const AliceData = 1;
+      const BobData = 2;
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTx = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);
+      await submitTransactionAsync(Alice, changeAdminTx);
+      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
+      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
+      //
+      // tslint:disable-next-line: max-line-length
+      const AliceTx = api.tx.nft.setVariableMetaData(collectionId, itemId, AliceData.toString());
+      // tslint:disable-next-line: max-line-length
+      const BobTx = api.tx.nft.setVariableMetaData(collectionId, itemId, BobData.toString());
+      await Promise.all([
+        AliceTx.signAndSend(Alice),
+        BobTx.signAndSend(Bob),
+      ]);
+      const item: any = await api.query.nft.nftItemList(collectionId, itemId);
+      expect(item.VariableData).not.to.be.eq(null); // Pseudo-random selection of one of two values
+      await timeoutPromise(20000);
+    });
+  });
+});
modifiedtests/src/collision-tests/admVsOwnerTake.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/admVsOwnerTake.test.ts
+++ b/tests/src/collision-tests/admVsOwnerTake.test.ts
@@ -1,54 +1,49 @@
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import { alicesPublicKey, bobsPublicKey } from '../accounts';
-import getBalance from '../substrate/get-balance';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import waitNewBlocks from '../substrate/wait-new-blocks';
-import {
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  setCollectionSponsorExpectSuccess,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Admin vs Owner take token: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('The collection admin burns the token and in the same block the token owner performs a transaction on it ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTx = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);
-      await submitTransactionAsync(Alice, changeAdminTx);
-      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
-      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
-      //
-      const sendItem = api.tx.nft.transfer(Ferdie.address, collectionId, itemId, 1);
-      const burnItem = api.tx.nft.burnItem(collectionId, itemId, 1);
-      await Promise.all
-      ([
-        sendItem.signAndSend(Bob),
-        burnItem.signAndSend(Alice),
-      ]);
-      await timeoutPromise(10000);
-      let itemBurn: boolean = false;
-      itemBurn = (await (api.query.nft.nftItemList(collectionId, itemId))).toJSON() as boolean;
-      // tslint:disable-next-line: no-unused-expression
-      expect(itemBurn).to.be.null;
-      await timeoutPromise(20000);
-    });
-  });
-});
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Admin vs Owner take token: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('The collection admin burns the token and in the same block the token owner performs a transaction on it ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTx = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);
+      await submitTransactionAsync(Alice, changeAdminTx);
+      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
+      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
+      //
+      const sendItem = api.tx.nft.transfer(Ferdie.address, collectionId, itemId, 1);
+      const burnItem = api.tx.nft.burnItem(collectionId, itemId, 1);
+      await Promise.all([
+        sendItem.signAndSend(Bob),
+        burnItem.signAndSend(Alice),
+      ]);
+      await timeoutPromise(10000);
+      let itemBurn = false;
+      itemBurn = (await (api.query.nft.nftItemList(collectionId, itemId))).toJSON() as boolean;
+      // tslint:disable-next-line: no-unused-expression
+      expect(itemBurn).to.be.null;
+      await timeoutPromise(20000);
+    });
+  });
+});
modifiedtests/src/collision-tests/adminDestroyCollection.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/adminDestroyCollection.test.ts
+++ b/tests/src/collision-tests/adminDestroyCollection.test.ts
@@ -1,35 +1,23 @@
 import { IKeyringPair } from '@polkadot/types/types';
-import BN from 'bn.js';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from '../substrate/substrate-api';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
 import {
   createCollectionExpectSuccess,
 } from '../util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-interface ITokenDataType {
-  Owner: number[];
-  ConstData: number[];
-  VariableData: number[];
-}
 let Alice: IKeyringPair;
 let Bob: IKeyringPair;
 let Ferdie: IKeyringPair;
-let Charlie: IKeyringPair;
-let Eve: IKeyringPair;
-let Dave: IKeyringPair;
 
 before(async () => {
   await usingApi(async () => {
     Alice = privateKey('//Alice');
     Bob = privateKey('//Bob');
     Ferdie = privateKey('//Ferdie');
-    Charlie = privateKey('//Charlie');
-    Eve = privateKey('//Eve');
-    Dave = privateKey('//Dave');
   });
 });
 
@@ -45,13 +33,12 @@
       //
       const addWhitelistAdm = api.tx.nft.addToWhiteList(collectionId, Ferdie.address);
       const destroyCollection = api.tx.nft.destroyCollection(collectionId);
-      await Promise.all
-      ([
+      await Promise.all([
         addWhitelistAdm.signAndSend(Bob),
         destroyCollection.signAndSend(Alice),
       ]);
       await timeoutPromise(10000);
-      let whiteList: boolean = false;
+      let whiteList = false;
       whiteList = (await api.query.nft.whiteList(collectionId, Ferdie.address)).toJSON() as boolean;
       // tslint:disable-next-line: no-unused-expression
       expect(whiteList).to.be.false;
modifiedtests/src/collision-tests/adminLimitsOff.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/adminLimitsOff.test.ts
+++ b/tests/src/collision-tests/adminLimitsOff.test.ts
@@ -10,11 +10,6 @@
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-interface ITokenDataType {
-  Owner: number[];
-  ConstData: number[];
-  VariableData: number[];
-}
 let Alice: IKeyringPair;
 let Bob: IKeyringPair;
 let Ferdie: IKeyringPair;
@@ -51,11 +46,9 @@
       await submitTransactionAsync(Alice, changeAdminTx3);
 
       const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
-      //
       const addAdmOne = api.tx.nft.addCollectionAdmin(collectionId, Ferdie.address);
       const addAdmTwo = api.tx.nft.addCollectionAdmin(collectionId, Charlie.address);
-      await Promise.all
-      ([
+      await Promise.all([
         addAdmOne.signAndSend(Bob),
         addAdmTwo.signAndSend(Alice),
       ]);
modifiedtests/src/collision-tests/adminRightsOff.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/adminRightsOff.test.ts
+++ b/tests/src/collision-tests/adminRightsOff.test.ts
@@ -3,33 +3,20 @@
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from '../substrate/substrate-api';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
 import {
   createCollectionExpectSuccess,
 } from '../util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-interface ITokenDataType {
-  Owner: number[];
-  ConstData: number[];
-  VariableData: number[];
-}
 let Alice: IKeyringPair;
 let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-let Charlie: IKeyringPair;
-let Eve: IKeyringPair;
-let Dave: IKeyringPair;
 
 before(async () => {
   await usingApi(async () => {
     Alice = privateKey('//Alice');
     Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-    Charlie = privateKey('//Charlie');
-    Eve = privateKey('//Eve');
-    Dave = privateKey('//Dave');
   });
 });
 
@@ -42,12 +29,10 @@
       await submitTransactionAsync(Alice, changeAdminTx);
       const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
       await timeoutPromise(10000);
-      //
       const args = [{ nft: ['0x31', '0x31'] }, { nft: ['0x32', '0x32'] }, { nft: ['0x33', '0x33'] }];
       const addItemAdm = api.tx.nft.createMultipleItems(collectionId, Bob.address, args);
       const removeAdm = api.tx.nft.removeCollectionAdmin(collectionId, Bob.address);
-      await Promise.all
-      ([
+      await Promise.all([
         addItemAdm.signAndSend(Bob),
         removeAdm.signAndSend(Alice),
       ]);
modifiedtests/src/collision-tests/setSponsorNewOwner.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/setSponsorNewOwner.test.ts
+++ b/tests/src/collision-tests/setSponsorNewOwner.test.ts
@@ -1,20 +1,14 @@
 import { IKeyringPair } from '@polkadot/types/types';
-import BN from 'bn.js';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from '../substrate/substrate-api';
+import usingApi from '../substrate/substrate-api';
 import {
-  createCollectionExpectSuccess, createItemExpectSuccess, setCollectionSponsorExpectSuccess,
+  createCollectionExpectSuccess, setCollectionSponsorExpectSuccess,
 } from '../util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-interface ITokenDataType {
-  Owner: number[];
-  ConstData: number[];
-  VariableData: number[];
-}
 let Alice: IKeyringPair;
 let Bob: IKeyringPair;
 let Ferdie: IKeyringPair;
@@ -35,11 +29,9 @@
       await setCollectionSponsorExpectSuccess(collectionId, Bob.address);
       const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
       await timeoutPromise(10000);
-      //
       const confirmSponsorship = api.tx.nft.confirmSponsorship(collectionId);
       const changeCollectionOwner = api.tx.nft.changeCollectionOwner(collectionId, Ferdie.address);
-      await Promise.all
-      ([
+      await Promise.all([
         confirmSponsorship.signAndSend(Bob),
         changeCollectionOwner.signAndSend(Alice),
       ]);
modifiedtests/src/collision-tests/sponsorPayments.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/sponsorPayments.test.ts
+++ b/tests/src/collision-tests/sponsorPayments.test.ts
@@ -1,58 +1,54 @@
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import { alicesPublicKey, bobsPublicKey } from '../accounts';
-import getBalance from '../substrate/get-balance';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import waitNewBlocks from '../substrate/wait-new-blocks';
-import {
-  confirmSponsorshipExpectSuccess,
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  setCollectionSponsorExpectSuccess,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Payment of commission if one block: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('Payment of commission if one block contains transactions for payment from the sponsor\'s balance and his (sponsor\'s) exclusion from the collection ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const changeAdminTxBob = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);
-      await submitTransactionAsync(Alice, changeAdminTxBob);
-      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
-      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
-      await setCollectionSponsorExpectSuccess(collectionId, Bob.address);
-      await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
-      //
-      const [alicesBalanceBefore, bobsBalanceBefore] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
-      const sendItem = api.tx.nft.transfer(Alice.address, collectionId, itemId, 1);
-      const revokeSponsor = api.tx.nft.removeCollectionSponsor(collectionId);
-      await Promise.all
-      ([
-        sendItem.signAndSend(Bob),
-        revokeSponsor.signAndSend(Alice),
-      ]);
-      const [alicesBalanceAfter, bobsBalanceAfter] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
-      // tslint:disable-next-line:no-unused-expression
-      expect(alicesBalanceAfter === alicesBalanceBefore).to.be.true;
-      // tslint:disable-next-line:no-unused-expression
-      expect(bobsBalanceAfter === bobsBalanceBefore).to.be.true;
-      await timeoutPromise(20000);
-    });
-  });
-});
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import { alicesPublicKey, bobsPublicKey } from '../accounts';
+import getBalance from '../substrate/get-balance';
+import privateKey from '../substrate/privateKey';
+import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
+import {
+  confirmSponsorshipExpectSuccess,
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+  setCollectionSponsorExpectSuccess,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Bob = privateKey('//Bob');
+  });
+});
+
+describe('Payment of commission if one block: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('Payment of commission if one block contains transactions for payment from the sponsor\'s balance and his (sponsor\'s) exclusion from the collection ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const changeAdminTxBob = api.tx.nft.addCollectionAdmin(collectionId, Bob.address);
+      await submitTransactionAsync(Alice, changeAdminTxBob);
+      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
+      const itemId = await createItemExpectSuccess(Bob, collectionId, 'NFT');
+      await setCollectionSponsorExpectSuccess(collectionId, Bob.address);
+      await confirmSponsorshipExpectSuccess(collectionId, '//Bob');
+
+      const [alicesBalanceBefore, bobsBalanceBefore] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
+      const sendItem = api.tx.nft.transfer(Alice.address, collectionId, itemId, 1);
+      const revokeSponsor = api.tx.nft.removeCollectionSponsor(collectionId);
+      await Promise.all([
+        sendItem.signAndSend(Bob),
+        revokeSponsor.signAndSend(Alice),
+      ]);
+      const [alicesBalanceAfter, bobsBalanceAfter] = await getBalance(api, [alicesPublicKey, bobsPublicKey]);
+      // tslint:disable-next-line:no-unused-expression
+      expect(alicesBalanceAfter === alicesBalanceBefore).to.be.true;
+      // tslint:disable-next-line:no-unused-expression
+      expect(bobsBalanceAfter === bobsBalanceBefore).to.be.true;
+      await timeoutPromise(20000);
+    });
+  });
+});
modifiedtests/src/collision-tests/tokenLimitsOff.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/tokenLimitsOff.test.ts
+++ b/tests/src/collision-tests/tokenLimitsOff.test.ts
@@ -13,11 +13,6 @@
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-interface ITokenDataType {
-  Owner: number[];
-  ConstData: number[];
-  VariableData: number[];
-}
 let Alice: IKeyringPair;
 let Bob: IKeyringPair;
 let Ferdie: IKeyringPair;
@@ -63,14 +58,13 @@
       expect(subTxTesult.success).to.be.true;
       const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
       await timeoutPromise(10000);
-      //
+
       const args = [{ nft: ['0x31', '0x31'] }, { nft: ['0x32', '0x32'] }, { nft: ['0x33', '0x33'] }];
       const mintItemOne = api.tx.nft
         .createMultipleItems(collectionId, Ferdie.address, args);
       const mintItemTwo = api.tx.nft
         .createMultipleItems(collectionId, Bob.address, args);
-      await Promise.all
-      ([
+      await Promise.all([
         mintItemOne.signAndSend(Ferdie),
         mintItemTwo.signAndSend(Bob),
       ]);
modifiedtests/src/collision-tests/turnsOffMinting.test.tsdiffbeforeafterboth
--- a/tests/src/collision-tests/turnsOffMinting.test.ts
+++ b/tests/src/collision-tests/turnsOffMinting.test.ts
@@ -1,50 +1,46 @@
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from '../substrate/privateKey';
-import usingApi, { submitTransactionAsync } from '../substrate/substrate-api';
-import waitNewBlocks from '../substrate/wait-new-blocks';
-import {
-  addToWhiteListExpectSuccess,
-  createCollectionExpectSuccess,
-  setMintPermissionExpectSuccess,
-} from '../util/helpers';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-let Ferdie: IKeyringPair;
-
-before(async () => {
-  await usingApi(async () => {
-    Alice = privateKey('//Alice');
-    Bob = privateKey('//Bob');
-    Ferdie = privateKey('//Ferdie');
-  });
-});
-
-describe('Turns off minting mode: ', () => {
-  // tslint:disable-next-line: max-line-length
-  it('The collection owner turns off minting mode and there are minting transactions in the same block ', async () => {
-    await usingApi(async (api) => {
-      const collectionId = await createCollectionExpectSuccess();
-      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
-      await setMintPermissionExpectSuccess(Alice, collectionId, true);
-      await addToWhiteListExpectSuccess(Alice, collectionId, Ferdie.address);
-      //
-      const mintItem = api.tx.nft.createItem(collectionId, Ferdie.address, 'NFT');
-      const offMinting = api.tx.nft.setMintPermission(collectionId, false);
-      await Promise.all
-      ([
-        mintItem.signAndSend(Ferdie),
-        offMinting.signAndSend(Alice),
-      ]);
-      let itemList: boolean = false;
-      itemList = (await (api.query.nft.nftItemList(collectionId, mintItem))).toJSON() as boolean;
-      // tslint:disable-next-line: no-unused-expression
-      expect(itemList).to.be.null;
-      await timeoutPromise(20000);
-    });
-  });
-});
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from '../substrate/privateKey';
+import usingApi from '../substrate/substrate-api';
+import {
+  addToWhiteListExpectSuccess,
+  createCollectionExpectSuccess,
+  setMintPermissionExpectSuccess,
+} from '../util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+let Alice: IKeyringPair;
+let Ferdie: IKeyringPair;
+
+before(async () => {
+  await usingApi(async () => {
+    Alice = privateKey('//Alice');
+    Ferdie = privateKey('//Ferdie');
+  });
+});
+
+describe('Turns off minting mode: ', () => {
+  // tslint:disable-next-line: max-line-length
+  it('The collection owner turns off minting mode and there are minting transactions in the same block ', async () => {
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const timeoutPromise = (timeout: number) => new Promise((resolve) => setTimeout(resolve, timeout));
+      await setMintPermissionExpectSuccess(Alice, collectionId, true);
+      await addToWhiteListExpectSuccess(Alice, collectionId, Ferdie.address);
+
+      const mintItem = api.tx.nft.createItem(collectionId, Ferdie.address, 'NFT');
+      const offMinting = api.tx.nft.setMintPermission(collectionId, false);
+      await Promise.all([
+        mintItem.signAndSend(Ferdie),
+        offMinting.signAndSend(Alice),
+      ]);
+      let itemList = false;
+      itemList = (await (api.query.nft.nftItemList(collectionId, mintItem))).toJSON() as boolean;
+      // tslint:disable-next-line: no-unused-expression
+      expect(itemList).to.be.null;
+      await timeoutPromise(20000);
+    });
+  });
+});
modifiedtests/src/config.tsdiffbeforeafterboth
--- a/tests/src/config.ts
+++ b/tests/src/config.ts
@@ -6,7 +6,7 @@
 import process from 'process';
 
 const config = {
-  substrateUrl: process.env.substrateUrl || 'ws://127.0.0.1:9944'
-}
+  substrateUrl: process.env.substrateUrl || 'ws://127.0.0.1:9844',
+};
 
 export default config;
\ No newline at end of file
modifiedtests/src/config_docker.tsdiffbeforeafterboth
--- a/tests/src/config_docker.ts
+++ b/tests/src/config_docker.ts
@@ -6,7 +6,7 @@
 import process from 'process';
 
 const config = {
-  substrateUrl: process.env.substrateUrl || 'ws://172.17.0.1:9944'
-}
+  substrateUrl: process.env.substrateUrl || 'ws://172.17.0.1:9944',
+};
 
 export default config;
\ No newline at end of file
modifiedtests/src/confirmSponsorship.test.tsdiffbeforeafterboth
--- a/tests/src/confirmSponsorship.test.ts
+++ b/tests/src/confirmSponsorship.test.ts
@@ -5,12 +5,11 @@
 
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";
+import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from './substrate/substrate-api';
 import { 
   createCollectionExpectSuccess, 
   setCollectionSponsorExpectSuccess, 
   destroyCollectionExpectSuccess, 
-  setCollectionSponsorExpectFailure,
   confirmSponsorshipExpectSuccess,
   confirmSponsorshipExpectFailure,
   createItemExpectSuccess,
@@ -20,10 +19,9 @@
   enablePublicMintingExpectSuccess,
   addToWhiteListExpectSuccess,
   normalizeAccountId,
-} from "./util/helpers";
-import { Keyring } from "@polkadot/api";
-import { IKeyringPair } from "@polkadot/types/types";
-import type { AccountId } from '@polkadot/types/interfaces';
+} from './util/helpers';
+import { Keyring } from '@polkadot/api';
+import { IKeyringPair } from '@polkadot/types/types';
 import { BigNumber } from 'bignumber.js';
 
 chai.use(chaiAsPromised);
@@ -36,11 +34,11 @@
 describe('integration test: ext. confirmSponsorship():', () => {
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const keyring = new Keyring({ type: 'sr25519' });
-      alice = keyring.addFromUri(`//Alice`);
-      bob = keyring.addFromUri(`//Bob`);
-      charlie = keyring.addFromUri(`//Charlie`);
+      alice = keyring.addFromUri('//Alice');
+      bob = keyring.addFromUri('//Bob');
+      charlie = keyring.addFromUri('//Charlie');
     });
   });
 
@@ -163,7 +161,7 @@
       await addToWhiteListExpectSuccess(alice, collectionId, zeroBalance.address);
 
       // Mint token using unused address as signer
-      const tokenId = await createItemExpectSuccess(zeroBalance, collectionId, 'NFT', zeroBalance.address);
+      await createItemExpectSuccess(zeroBalance, collectionId, 'NFT', zeroBalance.address);
 
       const BsponsorBalance = new BigNumber((await api.query.system.account(bob.address)).data.free.toString());
 
@@ -195,7 +193,7 @@
       const badTransaction = async function () { 
         await submitTransactionExpectFailAsync(zeroBalance, zeroToAlice);
       };
-      await expect(badTransaction()).to.be.rejectedWith("Inability to pay some fees");
+      await expect(badTransaction()).to.be.rejectedWith('Inability to pay some fees');
       const BsponsorBalance = new BigNumber((await api.query.system.account(bob.address)).data.free.toString());
 
       // Try again after Zero gets some balance - now it should succeed
@@ -228,11 +226,7 @@
       const result1 = getGenericResult(events1);
 
       const AsponsorBalance = new BigNumber((await api.query.system.account(bob.address)).data.free.toString());
-
-      const badTransaction = async function () { 
-        await submitTransactionExpectFailAsync(zeroBalance, zeroToAlice);
-      };
-
+      await submitTransactionExpectFailAsync(zeroBalance, zeroToAlice);
       const BsponsorBalance = new BigNumber((await api.query.system.account(bob.address)).data.free.toString());
 
       // Try again after Zero gets some balance - now it should succeed
@@ -271,7 +265,7 @@
       const badTransaction = async function () { 
         await submitTransactionExpectFailAsync(zeroBalance, zeroToAlice);
       };
-      await expect(badTransaction()).to.be.rejectedWith("Inability to pay some fees");
+      await expect(badTransaction()).to.be.rejectedWith('Inability to pay some fees');
       const BsponsorBalance = new BigNumber((await api.query.system.account(bob.address)).data.free.toString());
 
       // Try again after Zero gets some balance - now it should succeed
@@ -317,7 +311,7 @@
       const badTransaction = async function () { 
         await createItemExpectSuccess(zeroBalance, collectionId, 'NFT', zeroBalance.address);
       };
-      await expect(badTransaction()).to.be.rejectedWith("Inability to pay some fees");
+      await expect(badTransaction()).to.be.rejectedWith('Inability to pay some fees');
       console.error = consoleError;
       console.log = consoleLog;
       const BsponsorBalance = new BigNumber((await api.query.system.account(bob.address)).data.free.toString());
@@ -335,19 +329,19 @@
 
 describe('(!negative test!) integration test: ext. removeCollectionSponsor():', () => {
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const keyring = new Keyring({ type: 'sr25519' });
-      alice = keyring.addFromUri(`//Alice`);
-      bob = keyring.addFromUri(`//Bob`);
-      charlie = keyring.addFromUri(`//Charlie`);
+      alice = keyring.addFromUri('//Alice');
+      bob = keyring.addFromUri('//Bob');
+      charlie = keyring.addFromUri('//Charlie');
     });
   });
 
   it('(!negative test!) Confirm sponsorship for a collection that never existed', async () => {
     // Find the collection that never existed
-    const collectionId = 0;
+    let collectionId = 0;
     await usingApi(async (api) => {
-      const collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
+      collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
     });
 
     await confirmSponsorshipExpectFailure(collectionId, '//Bob');
modifiedtests/src/connection.test.tsdiffbeforeafterboth
--- a/tests/src/connection.test.ts
+++ b/tests/src/connection.test.ts
@@ -3,7 +3,7 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import usingApi from "./substrate/substrate-api";
+import usingApi from './substrate/substrate-api';
 import { WsProvider } from '@polkadot/api';
 import * as chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
@@ -29,7 +29,7 @@
     const neverConnectProvider = new WsProvider('ws://255.255.255.255:9944');
     await expect((async () => {
       await usingApi(async api => {
-        const health = await api.rpc.system.health();
+        await api.rpc.system.health();
       }, { provider: neverConnectProvider });
     })()).to.be.eventually.rejected;
 
modifiedtests/src/contracts.test.tsdiffbeforeafterboth
--- a/tests/src/contracts.test.ts
+++ b/tests/src/contracts.test.ts
@@ -3,17 +3,17 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import chai from "chai";
+import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";
-import fs from "fs";
-import { Abi, ContractPromise as Contract } from "@polkadot/api-contract";
-import privateKey from "./substrate/privateKey";
+import usingApi, { submitTransactionAsync } from './substrate/substrate-api';
+import fs from 'fs';
+import { Abi, ContractPromise as Contract } from '@polkadot/api-contract';
+import privateKey from './substrate/privateKey';
 import {
   deployFlipper,
   getFlipValue,
   deployTransferContract,
-} from "./util/contracthelpers";
+} from './util/contracthelpers';
 
 import {
   addToWhiteListExpectSuccess,
@@ -25,8 +25,8 @@
   getGenericResult,
   normalizeAccountId,
   isWhitelisted,
-  transferFromExpectSuccess
-} from "./util/helpers";
+  transferFromExpectSuccess,
+} from './util/helpers';
 
 
 chai.use(chaiAsPromised);
@@ -37,12 +37,12 @@
 const marketContractAddress = '5CYN9j3YvRkqxewoxeSvRbhAym4465C57uMmX5j4yz99L5H6';
 
 describe('Contracts', () => {
-  it(`Can deploy smart contract Flipper, instantiate it and call it's get and flip messages.`, async () => {
+  it('Can deploy smart contract Flipper, instantiate it and call it\'s get and flip messages.', async () => {
     await usingApi(async api => {
       const [contract, deployer] = await deployFlipper(api);
       const initialGetResponse = await getFlipValue(contract, deployer);
 
-      const bob = privateKey("//Bob");
+      const bob = privateKey('//Bob');
       const flip = contract.tx.flip(value, gasLimit);
       await submitTransactionAsync(bob, flip);
 
@@ -65,13 +65,13 @@
 describe.only('Chain extensions', () => {
   it('Transfer CE', async () => {
     await usingApi(async api => {
-      const alice = privateKey("//Alice");
-      const bob = privateKey("//Bob");
+      const alice = privateKey('//Alice');
+      const bob = privateKey('//Bob');
 
       // Prep work
       const collectionId = await createCollectionExpectSuccess();
       const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT');
-      const [contract, deployer] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api);
       const changeAdminTx = api.tx.nft.addCollectionAdmin(collectionId, contract.address);
       await submitTransactionAsync(alice, changeAdminTx);
 
@@ -96,7 +96,7 @@
       const bob = privateKey('//Bob');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract, deployer] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api);
       await enablePublicMintingExpectSuccess(alice, collectionId);
       await enableWhiteListExpectSuccess(alice, collectionId);
       await addToWhiteListExpectSuccess(alice, collectionId, contract.address);
@@ -124,7 +124,7 @@
       const bob = privateKey('//Bob');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract, deployer] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api);
       await enablePublicMintingExpectSuccess(alice, collectionId);
       await enableWhiteListExpectSuccess(alice, collectionId);
       await addToWhiteListExpectSuccess(alice, collectionId, contract.address);
@@ -133,7 +133,7 @@
       const transferTx = contract.tx.createMultipleItems(value, gasLimit, bob.address, collectionId, [
         { Nft: { const_data: '0x010203', variable_data: '0x020304' } },
         { Nft: { const_data: '0x010204', variable_data: '0x020305' } },
-        { Nft: { const_data: '0x010205', variable_data: '0x020306' } }
+        { Nft: { const_data: '0x010205', variable_data: '0x020306' } },
       ]);
       const events = await submitTransactionAsync(alice, transferTx);
       const result = getGenericResult(events);
@@ -169,7 +169,7 @@
       const charlie = privateKey('//Charlie');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract, deployer] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api);
       const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', contract.address.toString());
 
       const transferTx = contract.tx.approve(value, gasLimit, bob.address, collectionId, tokenId, 1);
@@ -188,7 +188,7 @@
       const charlie = privateKey('//Charlie');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract, deployer] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api);
       const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', bob.address);
       await approveExpectSuccess(collectionId, tokenId, bob, contract.address.toString(), 1);
 
@@ -197,7 +197,7 @@
       const result = getGenericResult(events);
       expect(result.success).to.be.true;
 
-      const token: any = (await api.query.nft.nftItemList(collectionId, tokenId) as any).unwrap()
+      const token: any = (await api.query.nft.nftItemList(collectionId, tokenId) as any).unwrap();
       expect(token.Owner.toString()).to.be.equal(charlie.address);
     });
   });
@@ -207,7 +207,7 @@
       const alice = privateKey('//Alice');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract, deployer] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api);
       const tokenId = await createItemExpectSuccess(alice, collectionId, 'NFT', contract.address.toString());
 
       const transferTx = contract.tx.setVariableMetaData(value, gasLimit, collectionId, tokenId, '0x121314');
@@ -215,7 +215,7 @@
       const result = getGenericResult(events);
       expect(result.success).to.be.true;
 
-      const token: any = (await api.query.nft.nftItemList(collectionId, tokenId) as any).unwrap()
+      const token: any = (await api.query.nft.nftItemList(collectionId, tokenId) as any).unwrap();
       expect(token.VariableData.toString()).to.be.equal('0x121314');
     });
   });
@@ -226,7 +226,7 @@
       const bob = privateKey('//Bob');
 
       const collectionId = await createCollectionExpectSuccess();
-      const [contract, deployer] = await deployTransferContract(api);
+      const [contract] = await deployTransferContract(api);
       const changeAdminTx = api.tx.nft.addCollectionAdmin(collectionId, contract.address);
       await submitTransactionAsync(alice, changeAdminTx);      
 
modifiedtests/src/createItem.test.tsdiffbeforeafterboth
--- a/tests/src/createItem.test.ts
+++ b/tests/src/createItem.test.ts
@@ -1,39 +1,39 @@
-//
-// This file is subject to the terms and conditions defined in
-// file 'LICENSE', which is part of this source code package.
-//
-
-import { default as usingApi } from './substrate/substrate-api';
-import { Keyring } from "@polkadot/api";
-import { IKeyringPair } from "@polkadot/types/types";
-import { 
-  createCollectionExpectSuccess, 
-  createItemExpectSuccess
-} from './util/helpers';
-
-let alice: IKeyringPair;
-
-describe('integration test: ext. createItem():', () => {
-  before(async () => {
-    await usingApi(async (api) => {
-      const keyring = new Keyring({ type: 'sr25519' });
-      alice = keyring.addFromUri(`//Alice`);
-    });
-  });
-
-  it('Create new item in NFT collection', async () => {
-    const createMode = 'NFT';
-    const newCollectionID = await createCollectionExpectSuccess({mode: {type: createMode}});
-    await createItemExpectSuccess(alice, newCollectionID, createMode);
-  });
-  it('Create new item in Fungible collection', async () => {
-    const createMode = 'Fungible';
-    const newCollectionID = await createCollectionExpectSuccess({mode: {type: createMode, decimalPoints: 0}});
-    await createItemExpectSuccess(alice, newCollectionID, createMode);
-  });
-  it('Create new item in ReFungible collection', async () => {
-    const createMode = 'ReFungible';
-    const newCollectionID = await createCollectionExpectSuccess({mode: {type: createMode}});
-    await createItemExpectSuccess(alice, newCollectionID, createMode);
-  });
-});
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import { default as usingApi } from './substrate/substrate-api';
+import { Keyring } from '@polkadot/api';
+import { IKeyringPair } from '@polkadot/types/types';
+import { 
+  createCollectionExpectSuccess, 
+  createItemExpectSuccess,
+} from './util/helpers';
+
+let alice: IKeyringPair;
+
+describe('integration test: ext. createItem():', () => {
+  before(async () => {
+    await usingApi(async () => {
+      const keyring = new Keyring({ type: 'sr25519' });
+      alice = keyring.addFromUri('//Alice');
+    });
+  });
+
+  it('Create new item in NFT collection', async () => {
+    const createMode = 'NFT';
+    const newCollectionID = await createCollectionExpectSuccess({mode: {type: createMode}});
+    await createItemExpectSuccess(alice, newCollectionID, createMode);
+  });
+  it('Create new item in Fungible collection', async () => {
+    const createMode = 'Fungible';
+    const newCollectionID = await createCollectionExpectSuccess({mode: {type: createMode, decimalPoints: 0}});
+    await createItemExpectSuccess(alice, newCollectionID, createMode);
+  });
+  it('Create new item in ReFungible collection', async () => {
+    const createMode = 'ReFungible';
+    const newCollectionID = await createCollectionExpectSuccess({mode: {type: createMode}});
+    await createItemExpectSuccess(alice, newCollectionID, createMode);
+  });
+});
modifiedtests/src/creditFeesToTreasury.test.tsdiffbeforeafterboth
--- a/tests/src/creditFeesToTreasury.test.ts
+++ b/tests/src/creditFeesToTreasury.test.ts
@@ -5,16 +5,16 @@
 
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";
-import { alicesPublicKey, bobsPublicKey } from "./accounts";
-import privateKey from "./substrate/privateKey";
+import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from './substrate/substrate-api';
+import { alicesPublicKey, bobsPublicKey } from './accounts';
+import privateKey from './substrate/privateKey';
 import { BigNumber } from 'bignumber.js';
 import { IKeyringPair } from '@polkadot/types/types';
 import { 
   createCollectionExpectSuccess, 
   createItemExpectSuccess,
   getGenericResult,
-  transferExpectSuccess
+  transferExpectSuccess,
 } from './util/helpers';
 
 import { default as waitNewBlocks } from './substrate/wait-new-blocks';
@@ -23,7 +23,7 @@
 chai.use(chaiAsPromised);
 const expect = chai.expect;
 
-const Treasury = "5EYCAe5ijiYfyeZ2JJCGq56LmPyNRAKzpG4QkoQkkQNB5e6Z";
+const Treasury = '5EYCAe5ijiYfyeZ2JJCGq56LmPyNRAKzpG4QkoQkkQNB5e6Z';
 const saneMinimumFee = 0.05;
 const saneMaximumFee = 0.5;
 const createCollectionDeposit = 100;
@@ -33,8 +33,9 @@
 
 // Skip the inflation block pauses if the block is close to inflation block 
 // until the inflation happens
+/*eslint no-async-promise-executor: "off"*/
 function skipInflationBlock(api: ApiPromise): Promise<void> {
-  const promise = new Promise<void>(async (resolve, reject) => {
+  const promise = new Promise<void>(async (resolve) => {
     const blockInterval = parseInt((await api.consts.inflation.inflationBlockInterval).toString());
     const unsubscribe = await api.rpc.chain.subscribeNewHeads(head => {
       const currentBlock = parseInt(head.number.toString());
@@ -52,7 +53,7 @@
 
 describe('integration test: Fees must be credited to Treasury:', () => {
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       alice = privateKey('//Alice');
       bob = privateKey('//Bob');
     });
modifiedtests/src/destroyCollection.test.tsdiffbeforeafterboth
--- a/tests/src/destroyCollection.test.ts
+++ b/tests/src/destroyCollection.test.ts
@@ -7,8 +7,8 @@
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from './substrate/privateKey';
-import { default as usingApi } from "./substrate/substrate-api";
-import { createCollectionExpectSuccess, destroyCollectionExpectSuccess, destroyCollectionExpectFailure, setCollectionLimitsExpectSuccess } from "./util/helpers";
+import { default as usingApi } from './substrate/substrate-api';
+import { createCollectionExpectSuccess, destroyCollectionExpectSuccess, destroyCollectionExpectFailure, setCollectionLimitsExpectSuccess } from './util/helpers';
 
 chai.use(chaiAsPromised);
 
@@ -31,7 +31,7 @@
   let alice: IKeyringPair;
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       alice = privateKey('//Alice');
     });
   });
modifiedtests/src/enableContractSponsoring.test.tsdiffbeforeafterboth
--- a/tests/src/enableContractSponsoring.test.ts
+++ b/tests/src/enableContractSponsoring.test.ts
@@ -81,7 +81,7 @@
 
   it('fails when called by non-owning user', async () => {
     await usingApi(async (api) => {
-      const [flipper, _] = await deployFlipper(api);
+      const [flipper] = await deployFlipper(api);
 
       await enableContractSponsoringExpectFailure(alice, flipper.address, true);
     });
modifiedtests/src/eth/fungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/fungible.test.ts
+++ b/tests/src/eth/fungible.test.ts
@@ -1,289 +1,294 @@
-import privateKey from "../substrate/privateKey";
-import { approveExpectSuccess, createCollectionExpectSuccess, createFungibleItemExpectSuccess, transferExpectSuccess, transferFromExpectSuccess } from "../util/helpers";
-import { collectionIdToAddress, createEthAccount, itWeb3, normalizeEvents, recordEvents, subToEth, transferBalanceToEth } from "./util/helpers"
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import privateKey from '../substrate/privateKey';
+import { approveExpectSuccess, createCollectionExpectSuccess, createFungibleItemExpectSuccess, transferExpectSuccess, transferFromExpectSuccess } from '../util/helpers';
+import { collectionIdToAddress, createEthAccount, itWeb3, normalizeEvents, recordEvents, subToEth, transferBalanceToEth } from './util/helpers';
 import fungibleAbi from './fungibleAbi.json';
-import { expect } from "chai";
+import { expect } from 'chai';
 
 describe('Information getting', () => {
-    itWeb3('totalSupply', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            name: 'token name',
-            mode: { type: 'Fungible', decimalPoints: 0 }
-        });
-        const alice = privateKey('//Alice');
+  itWeb3('totalSupply', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      name: 'token name',
+      mode: { type: 'Fungible', decimalPoints: 0 },
+    });
+    const alice = privateKey('//Alice');
 
-        await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { substrate: alice.address });
+    await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { substrate: alice.address });
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleAbi as any, address);
-        const totalSupply = await contract.methods.totalSupply().call();
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleAbi as any, address);
+    const totalSupply = await contract.methods.totalSupply().call();
+
+    // FIXME: always equals to 0, because this method is not implemented
+    expect(totalSupply).to.equal('0');
+  });
 
-        // FIXME: always equals to 0, because this method is not implemented
-        expect(totalSupply).to.equal('0');
+  itWeb3('balanceOf', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      name: 'token name',
+      mode: { type: 'Fungible', decimalPoints: 0 },
     });
+    const alice = privateKey('//Alice');
 
-    itWeb3('balanceOf', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            name: 'token name',
-            mode: { type: 'Fungible', decimalPoints: 0 }
-        });
-        const alice = privateKey('//Alice');
+    const caller = createEthAccount(web3);
+    await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { ethereum: caller });
 
-        const caller = createEthAccount(web3);
-        await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { ethereum: caller });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleAbi as any, address);
+    const balance = await contract.methods.balanceOf(caller).call();
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleAbi as any, address);
-        const balance = await contract.methods.balanceOf(caller).call();
-
-        expect(balance).to.equal('200');
-    });
+    expect(balance).to.equal('200');
+  });
 });
 
 describe('Plain calls', () => {
-    itWeb3('Can perform approve()', async ({ web3, api }) => {
-        const collection = await createCollectionExpectSuccess({
-            name: 'token name',
-            mode: { type: 'Fungible', decimalPoints: 0 }
-        });
-        const alice = privateKey('//Alice');
+  itWeb3('Can perform approve()', async ({ web3, api }) => {
+    const collection = await createCollectionExpectSuccess({
+      name: 'token name',
+      mode: { type: 'Fungible', decimalPoints: 0 },
+    });
+    const alice = privateKey('//Alice');
 
-        const owner = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, owner, 999999999999999);
+    const owner = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, owner, 999999999999999);
 
-        await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { ethereum: owner });
+    await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { ethereum: owner });
 
-        const spender = createEthAccount(web3);
+    const spender = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleAbi as any, address);
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleAbi as any, address);
+
+    {
+      const result = await contract.methods.approve(spender, 100).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
+      const events = normalizeEvents(result.events);
 
+      expect(events).to.be.deep.equal([
         {
-            const result = await contract.methods.approve(spender, 100).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
-            const events = normalizeEvents(result.events);
+          address,
+          event: 'Approval',
+          args: {
+            owner,
+            spender,
+            value: '100',
+          },
+        },
+      ]);
+    }
 
-            expect(events).to.be.deep.equal([
-                {
-                    address,
-                    event: 'Approval',
-                    args: {
-                        owner,
-                        spender,
-                        value: '100',
-                    }
-                }
-            ]);
-        }
+    {
+      const allowance = await contract.methods.allowance(owner, spender).call();
+      expect(+allowance).to.equal(100);
+    }
+  });
 
-        {
-            const allowance = await contract.methods.allowance(owner, spender).call();
-            expect(+allowance).to.equal(100);
-        }
+  itWeb3('Can perform transferFrom()', async ({ web3, api }) => {
+    const collection = await createCollectionExpectSuccess({
+      name: 'token name',
+      mode: { type: 'Fungible', decimalPoints: 0 },
     });
+    const alice = privateKey('//Alice');
 
-    itWeb3('Can perform transferFrom()', async ({ web3, api }) => {
-        const collection = await createCollectionExpectSuccess({
-            name: 'token name',
-            mode: { type: 'Fungible', decimalPoints: 0 }
-        });
-        const alice = privateKey('//Alice');
-
-        const owner = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, owner, 999999999999999);
+    const owner = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, owner, 999999999999999);
 
-        await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { ethereum: owner });
+    await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { ethereum: owner });
 
-        const spender = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, spender, 999999999999999);
+    const spender = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, spender, 999999999999999);
 
-        const receiver = createEthAccount(web3);
+    const receiver = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleAbi as any, address);
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleAbi as any, address);
 
-        await contract.methods.approve(spender, 100).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
+    await contract.methods.approve(spender, 100).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
 
+    {
+      const result = await contract.methods.transferFrom(owner, receiver, 49).send({ from: spender, gas: '0x1000000', gasPrice: '0x01' });
+      const events = normalizeEvents(result.events);
+      expect(events).to.be.deep.equal([
         {
-            const result = await contract.methods.transferFrom(owner, receiver, 49).send({ from: spender, gas: '0x1000000', gasPrice: '0x01' });
-            const events = normalizeEvents(result.events);
-            expect(events).to.be.deep.equal([
-                {
-                    address,
-                    event: 'Transfer',
-                    args: {
-                        from: owner,
-                        to: receiver,
-                        value: '49',
-                    }
-                },
-                {
-                    address,
-                    event: 'Approval',
-                    args: {
-                        owner,
-                        spender,
-                        value: '51',
-                    }
-                }
-            ]);
-        }
-
+          address,
+          event: 'Transfer',
+          args: {
+            from: owner,
+            to: receiver,
+            value: '49',
+          },
+        },
         {
-            const balance = await contract.methods.balanceOf(receiver).call();
-            expect(+balance).to.equal(49);
-        }
+          address,
+          event: 'Approval',
+          args: {
+            owner,
+            spender,
+            value: '51',
+          },
+        },
+      ]);
+    }
 
-        {
-            const balance = await contract.methods.balanceOf(owner).call();
-            expect(+balance).to.equal(151);
-        }
-    });
+    {
+      const balance = await contract.methods.balanceOf(receiver).call();
+      expect(+balance).to.equal(49);
+    }
 
-    itWeb3('Can perform transfer()', async ({ web3, api }) => {
-        const collection = await createCollectionExpectSuccess({
-            name: 'token name',
-            mode: { type: 'Fungible', decimalPoints: 0 }
-        });
-        const alice = privateKey('//Alice');
+    {
+      const balance = await contract.methods.balanceOf(owner).call();
+      expect(+balance).to.equal(151);
+    }
+  });
 
-        const owner = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, owner, 999999999999999);
+  itWeb3('Can perform transfer()', async ({ web3, api }) => {
+    const collection = await createCollectionExpectSuccess({
+      name: 'token name',
+      mode: { type: 'Fungible', decimalPoints: 0 },
+    });
+    const alice = privateKey('//Alice');
 
-        await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { ethereum: owner });
+    const owner = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, owner, 999999999999999);
 
-        const receiver = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, receiver, 999999999999999);
+    await createFungibleItemExpectSuccess(alice, collection, { Value: 200n }, { ethereum: owner });
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleAbi as any, address);
+    const receiver = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, receiver, 999999999999999);
 
-        {
-            const result = await contract.methods.transfer(receiver, 50).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
-            const events = normalizeEvents(result.events);
-            expect(events).to.be.deep.equal([
-                {
-                    address,
-                    event: 'Transfer',
-                    args: {
-                        from: owner,
-                        to: receiver,
-                        value: '50',
-                    }
-                },
-            ])
-        }
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleAbi as any, address);
 
+    {
+      const result = await contract.methods.transfer(receiver, 50).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
+      const events = normalizeEvents(result.events);
+      expect(events).to.be.deep.equal([
         {
-            const balance = await contract.methods.balanceOf(owner).call();
-            expect(+balance).to.equal(150);
-        }
+          address,
+          event: 'Transfer',
+          args: {
+            from: owner,
+            to: receiver,
+            value: '50',
+          },
+        },
+      ]);
+    }
+
+    {
+      const balance = await contract.methods.balanceOf(owner).call();
+      expect(+balance).to.equal(150);
+    }
 
-        {
-            const balance = await contract.methods.balanceOf(receiver).call();
-            expect(+balance).to.equal(50);
-        }
-    });
+    {
+      const balance = await contract.methods.balanceOf(receiver).call();
+      expect(+balance).to.equal(50);
+    }
+  });
 });
 
 describe('Substrate calls', () => {
-    itWeb3('Events emitted for approve()', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'Fungible', decimalPoints: 0 }
-        });
-        const alice = privateKey('//Alice');
-
-        const receiver = createEthAccount(web3);
+  itWeb3('Events emitted for approve()', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'Fungible', decimalPoints: 0 },
+    });
+    const alice = privateKey('//Alice');
 
-        await createFungibleItemExpectSuccess(alice, collection, { Value: 200n });
+    const receiver = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleAbi as any, address);
+    await createFungibleItemExpectSuccess(alice, collection, { Value: 200n });
 
-        const events = await recordEvents(contract, async () => {
-            await approveExpectSuccess(collection, 1, alice, { ethereum: receiver }, 100);
-        });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleAbi as any, address);
 
-        expect(events).to.be.deep.equal([
-            {
-                address,
-                event: 'Approval',
-                args: {
-                    owner: subToEth(alice.address),
-                    spender: receiver,
-                    value: '100',
-                }
-            }
-        ]);
+    const events = await recordEvents(contract, async () => {
+      await approveExpectSuccess(collection, 1, alice, { ethereum: receiver }, 100);
     });
 
-    itWeb3('Events emitted for transferFrom()', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'Fungible', decimalPoints: 0 }
-        });
-        const alice = privateKey('//Alice');
-        const bob = privateKey('//Bob');
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Approval',
+        args: {
+          owner: subToEth(alice.address),
+          spender: receiver,
+          value: '100',
+        },
+      },
+    ]);
+  });
 
-        const receiver = createEthAccount(web3);
+  itWeb3('Events emitted for transferFrom()', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'Fungible', decimalPoints: 0 },
+    });
+    const alice = privateKey('//Alice');
+    const bob = privateKey('//Bob');
 
-        await createFungibleItemExpectSuccess(alice, collection, { Value: 200n });
-        await approveExpectSuccess(collection, 1, alice, bob, 100);
+    const receiver = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleAbi as any, address);
+    await createFungibleItemExpectSuccess(alice, collection, { Value: 200n });
+    await approveExpectSuccess(collection, 1, alice, bob, 100);
 
-        const events = await recordEvents(contract, async () => {
-            await transferFromExpectSuccess(collection, 1, bob, alice, { ethereum: receiver }, 51, 'Fungible');
-        });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleAbi as any, address);
 
-        expect(events).to.be.deep.equal([
-            {
-                address,
-                event: 'Transfer',
-                args: {
-                    from: subToEth(alice.address),
-                    to: receiver,
-                    value: '51',
-                }
-            },
-            {
-                address,
-                event: 'Approval',
-                args: {
-                    owner: subToEth(alice.address),
-                    spender: subToEth(bob.address),
-                    value: '49',
-                }
-            }
-        ]);
+    const events = await recordEvents(contract, async () => {
+      await transferFromExpectSuccess(collection, 1, bob, alice, { ethereum: receiver }, 51, 'Fungible');
     });
 
-    itWeb3('Events emitted for transfer()', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'Fungible', decimalPoints: 0 }
-        });
-        const alice = privateKey('//Alice');
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: subToEth(alice.address),
+          to: receiver,
+          value: '51',
+        },
+      },
+      {
+        address,
+        event: 'Approval',
+        args: {
+          owner: subToEth(alice.address),
+          spender: subToEth(bob.address),
+          value: '49',
+        },
+      },
+    ]);
+  });
 
-        const receiver = createEthAccount(web3);
+  itWeb3('Events emitted for transfer()', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'Fungible', decimalPoints: 0 },
+    });
+    const alice = privateKey('//Alice');
 
-        await createFungibleItemExpectSuccess(alice, collection, { Value: 200n });
+    const receiver = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleAbi as any, address);
+    await createFungibleItemExpectSuccess(alice, collection, { Value: 200n });
 
-        const events = await recordEvents(contract, async () => {
-            await transferExpectSuccess(collection, 1, alice, { ethereum: receiver }, 51, 'Fungible');
-        });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleAbi as any, address);
 
-        expect(events).to.be.deep.equal([
-            {
-                address,
-                event: 'Transfer',
-                args: {
-                    from: subToEth(alice.address),
-                    to: receiver,
-                    value: '51',
-                }
-            },
-        ]);
+    const events = await recordEvents(contract, async () => {
+      await transferExpectSuccess(collection, 1, alice, { ethereum: receiver }, 51, 'Fungible');
     });
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: subToEth(alice.address),
+          to: receiver,
+          value: '51',
+        },
+      },
+    ]);
+  });
 });
\ No newline at end of file
modifiedtests/src/eth/metadata.test.tsdiffbeforeafterboth
--- a/tests/src/eth/metadata.test.ts
+++ b/tests/src/eth/metadata.test.ts
@@ -1,53 +1,58 @@
-import { expect } from "chai";
-import privateKey from "../substrate/privateKey";
-import { createCollectionExpectSuccess } from "../util/helpers";
-import { collectionIdToAddress, createEthAccount, itWeb3, transferBalanceToEth } from "./util/helpers";
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import { expect } from 'chai';
+import privateKey from '../substrate/privateKey';
+import { createCollectionExpectSuccess } from '../util/helpers';
+import { collectionIdToAddress, createEthAccount, itWeb3, transferBalanceToEth } from './util/helpers';
 import fungibleMetadataAbi from './fungibleMetadataAbi.json';
 
 describe('Common metadata', () => {
-    itWeb3('Returns collection name', async ({ api, web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            name: 'token name',
-            mode: { type: 'NFT' }
-        });
-        const caller = createEthAccount(web3);
-        await transferBalanceToEth(api, privateKey('//Alice'), caller, 999999);
-
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleMetadataAbi as any, address);
-        const name = await contract.methods.name().call({ from: caller });
-
-        expect(name).to.equal('token name');
+  itWeb3('Returns collection name', async ({ api, web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      name: 'token name',
+      mode: { type: 'NFT' },
     });
+    const caller = createEthAccount(web3);
+    await transferBalanceToEth(api, privateKey('//Alice'), caller, 999999);
 
-    itWeb3('Returns symbol name', async ({ api, web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            tokenPrefix: 'TOK',
-            mode: { type: 'NFT' }
-        });
-        const caller = createEthAccount(web3);
-        await transferBalanceToEth(api, privateKey('//Alice'), caller, 999999);
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleMetadataAbi as any, address);
+    const name = await contract.methods.name().call({ from: caller });
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleMetadataAbi as any, address);
-        const symbol = await contract.methods.symbol().call({ from: caller });
+    expect(name).to.equal('token name');
+  });
 
-        expect(symbol).to.equal('TOK');
+  itWeb3('Returns symbol name', async ({ api, web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      tokenPrefix: 'TOK',
+      mode: { type: 'NFT' },
     });
+    const caller = createEthAccount(web3);
+    await transferBalanceToEth(api, privateKey('//Alice'), caller, 999999);
+
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleMetadataAbi as any, address);
+    const symbol = await contract.methods.symbol().call({ from: caller });
+
+    expect(symbol).to.equal('TOK');
+  });
 });
 
 describe('Fungible metadata', () => {
-    itWeb3('Returns fungible decimals', async ({ api, web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'Fungible', decimalPoints: 6 }
-        });
-        const caller = createEthAccount(web3);
-        await transferBalanceToEth(api, privateKey('//Alice'), caller, 999999);
+  itWeb3('Returns fungible decimals', async ({ api, web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'Fungible', decimalPoints: 6 },
+    });
+    const caller = createEthAccount(web3);
+    await transferBalanceToEth(api, privateKey('//Alice'), caller, 999999);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(fungibleMetadataAbi as any, address);
-        const decimals = await contract.methods.decimals().call({ from: caller });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(fungibleMetadataAbi as any, address);
+    const decimals = await contract.methods.decimals().call({ from: caller });
 
-        expect(+decimals).to.equal(6);
-    })
-})
\ No newline at end of file
+    expect(+decimals).to.equal(6);
+  });
+});
\ No newline at end of file
modifiedtests/src/eth/nonFungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -1,280 +1,285 @@
-import privateKey from "../substrate/privateKey";
-import { approveExpectSuccess, createCollectionExpectSuccess, createFungibleItemExpectSuccess, createItemExpectSuccess, transferExpectSuccess, transferFromExpectSuccess } from "../util/helpers";
-import { collectionIdToAddress, createEthAccount, itWeb3, normalizeEvents, recordEvents, subToEth, transferBalanceToEth } from "./util/helpers"
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import privateKey from '../substrate/privateKey';
+import { approveExpectSuccess, createCollectionExpectSuccess, createItemExpectSuccess, transferExpectSuccess, transferFromExpectSuccess } from '../util/helpers';
+import { collectionIdToAddress, createEthAccount, itWeb3, normalizeEvents, recordEvents, subToEth, transferBalanceToEth } from './util/helpers';
 import nonFungibleAbi from './nonFungibleAbi.json';
-import { expect } from "chai";
+import { expect } from 'chai';
 
 describe('Information getting', () => {
-    itWeb3('totalSupply', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
+  itWeb3('totalSupply', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
+    });
+    const alice = privateKey('//Alice');
+
+    await createItemExpectSuccess(alice, collection, 'NFT', { substrate: alice.address });
 
-        await createItemExpectSuccess(alice, collection, 'NFT', { substrate: alice.address });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const totalSupply = await contract.methods.totalSupply().call();
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
-        const totalSupply = await contract.methods.totalSupply().call();
+    // FIXME: always equals to 0, because this method is not implemented
+    expect(totalSupply).to.equal('0');
+  });
 
-        // FIXME: always equals to 0, because this method is not implemented
-        expect(totalSupply).to.equal('0');
+  itWeb3('balanceOf', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
     });
+    const alice = privateKey('//Alice');
 
-    itWeb3('balanceOf', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
+    const caller = createEthAccount(web3);
+    await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: caller });
+    await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: caller });
+    await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: caller });
 
-        const caller = createEthAccount(web3);
-        await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: caller });
-        await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: caller });
-        await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: caller });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const balance = await contract.methods.balanceOf(caller).call();
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
-        const balance = await contract.methods.balanceOf(caller).call();
+    expect(balance).to.equal('3');
+  });
 
-        expect(balance).to.equal('3');
+  itWeb3('ownerOf', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
     });
+    const alice = privateKey('//Alice');
 
-    itWeb3('ownerOf', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
+    const caller = createEthAccount(web3);
+    const tokenId = await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: caller });
 
-        const caller = createEthAccount(web3);
-        const tokenId = await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: caller });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const owner = await contract.methods.ownerOf(tokenId).call();
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
-        const owner = await contract.methods.ownerOf(tokenId).call();
-
-        expect(owner).to.equal(caller);
-    });
+    expect(owner).to.equal(caller);
+  });
 });
 
 describe.only('Plain calls', () => {
-    itWeb3('Can perform approve()', async ({ web3, api }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
+  itWeb3('Can perform approve()', async ({ web3, api }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
+    });
+    const alice = privateKey('//Alice');
 
-        const owner = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, owner, 999999999999999);
+    const owner = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, owner, 999999999999999);
 
-        const tokenId = await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: owner });
+    const tokenId = await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: owner });
 
-        const spender = createEthAccount(web3);
+    const spender = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
 
+    {
+      const result = await contract.methods.approve(spender, tokenId).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
+      const events = normalizeEvents(result.events);
+
+      expect(events).to.be.deep.equal([
         {
-            const result = await contract.methods.approve(spender, tokenId).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
-            const events = normalizeEvents(result.events);
+          address,
+          event: 'Approval',
+          args: {
+            owner,
+            approved: spender,
+            tokenId: tokenId.toString(),
+          },
+        },
+      ]);
+    }
+  });
 
-            expect(events).to.be.deep.equal([
-                {
-                    address,
-                    event: 'Approval',
-                    args: {
-                        owner,
-                        approved: spender,
-                        tokenId: tokenId.toString(),
-                    }
-                }
-            ]);
-        }
+  itWeb3('Can perform transferFrom()', async ({ web3, api }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
     });
-
-    itWeb3('Can perform transferFrom()', async ({ web3, api }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
+    const alice = privateKey('//Alice');
 
-        const owner = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, owner, 999999999999999);
+    const owner = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, owner, 999999999999999);
 
-        const tokenId = await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: owner });
+    const tokenId = await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: owner });
 
-        const spender = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, spender, 999999999999999);
+    const spender = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, spender, 999999999999999);
 
-        const receiver = createEthAccount(web3);
+    const receiver = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
 
-        await contract.methods.approve(spender, tokenId).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
+    await contract.methods.approve(spender, tokenId).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
 
+    {
+      const result = await contract.methods.transferFrom(owner, receiver, tokenId).send({ from: spender, gas: '0x1000000', gasPrice: '0x01' });
+      const events = normalizeEvents(result.events);
+      expect(events).to.be.deep.equal([
         {
-            const result = await contract.methods.transferFrom(owner, receiver, tokenId).send({ from: spender, gas: '0x1000000', gasPrice: '0x01' });
-            const events = normalizeEvents(result.events);
-            expect(events).to.be.deep.equal([
-                {
-                    address,
-                    event: 'Transfer',
-                    args: {
-                        from: owner,
-                        to: receiver,
-                        tokenId: tokenId.toString(),
-                    },
-                },
-            ]);
-        }
+          address,
+          event: 'Transfer',
+          args: {
+            from: owner,
+            to: receiver,
+            tokenId: tokenId.toString(),
+          },
+        },
+      ]);
+    }
 
-        {
-            const balance = await contract.methods.balanceOf(receiver).call();
-            expect(+balance).to.equal(1);
-        }
+    {
+      const balance = await contract.methods.balanceOf(receiver).call();
+      expect(+balance).to.equal(1);
+    }
 
-        {
-            const balance = await contract.methods.balanceOf(owner).call();
-            expect(+balance).to.equal(0);
-        }
-    });
+    {
+      const balance = await contract.methods.balanceOf(owner).call();
+      expect(+balance).to.equal(0);
+    }
+  });
 
-    itWeb3('Can perform transfer()', async ({ web3, api }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
+  itWeb3('Can perform transfer()', async ({ web3, api }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
+    });
+    const alice = privateKey('//Alice');
 
-        const owner = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, owner, 999999999999999);
+    const owner = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, owner, 999999999999999);
 
-        const tokenId = await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: owner });
+    const tokenId = await createItemExpectSuccess(alice, collection, 'NFT', { ethereum: owner });
 
-        const receiver = createEthAccount(web3);
-        await transferBalanceToEth(api, alice, receiver, 999999999999999);
+    const receiver = createEthAccount(web3);
+    await transferBalanceToEth(api, alice, receiver, 999999999999999);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
 
+    {
+      const result = await contract.methods.transfer(receiver, tokenId).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
+      console.log(result);
+      const events = normalizeEvents(result.events);
+      expect(events).to.be.deep.equal([
         {
-            const result = await contract.methods.transfer(receiver, tokenId).send({ from: owner, gas: '0x1000000', gasPrice: '0x01' });
-            console.log(result);
-            const events = normalizeEvents(result.events);
-            expect(events).to.be.deep.equal([
-                {
-                    address,
-                    event: 'Transfer',
-                    args: {
-                        from: owner,
-                        to: receiver,
-                        tokenId: tokenId.toString(),
-                    }
-                },
-            ])
-        }
+          address,
+          event: 'Transfer',
+          args: {
+            from: owner,
+            to: receiver,
+            tokenId: tokenId.toString(),
+          },
+        },
+      ]);
+    }
 
-        {
-            const balance = await contract.methods.balanceOf(owner).call();
-            expect(+balance).to.equal(0);
-        }
+    {
+      const balance = await contract.methods.balanceOf(owner).call();
+      expect(+balance).to.equal(0);
+    }
 
-        {
-            const balance = await contract.methods.balanceOf(receiver).call();
-            expect(+balance).to.equal(1);
-        }
-    });
+    {
+      const balance = await contract.methods.balanceOf(receiver).call();
+      expect(+balance).to.equal(1);
+    }
+  });
 });
 
 describe('Substrate calls', () => {
-    itWeb3('Events emitted for approve()', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
-
-        const receiver = createEthAccount(web3);
+  itWeb3('Events emitted for approve()', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
+    });
+    const alice = privateKey('//Alice');
 
-        const tokenId = await createItemExpectSuccess(alice, collection, 'NFT');
+    const receiver = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const tokenId = await createItemExpectSuccess(alice, collection, 'NFT');
 
-        const events = await recordEvents(contract, async () => {
-            await approveExpectSuccess(collection, tokenId, alice, { ethereum: receiver }, 1);
-        });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
 
-        expect(events).to.be.deep.equal([
-            {
-                address,
-                event: 'Approval',
-                args: {
-                    owner: subToEth(alice.address),
-                    approved: receiver,
-                    tokenId: tokenId.toString(),
-                }
-            }
-        ]);
+    const events = await recordEvents(contract, async () => {
+      await approveExpectSuccess(collection, tokenId, alice, { ethereum: receiver }, 1);
     });
 
-    itWeb3('Events emitted for transferFrom()', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
-        const bob = privateKey('//Bob');
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Approval',
+        args: {
+          owner: subToEth(alice.address),
+          approved: receiver,
+          tokenId: tokenId.toString(),
+        },
+      },
+    ]);
+  });
 
-        const receiver = createEthAccount(web3);
+  itWeb3('Events emitted for transferFrom()', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
+    });
+    const alice = privateKey('//Alice');
+    const bob = privateKey('//Bob');
 
-        const tokenId = await createItemExpectSuccess(alice, collection, 'NFT');
-        await approveExpectSuccess(collection, tokenId, alice, bob, 1);
+    const receiver = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const tokenId = await createItemExpectSuccess(alice, collection, 'NFT');
+    await approveExpectSuccess(collection, tokenId, alice, bob, 1);
 
-        const events = await recordEvents(contract, async () => {
-            await transferFromExpectSuccess(collection, tokenId, bob, alice, { ethereum: receiver }, 1, 'NFT');
-        });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
 
-        expect(events).to.be.deep.equal([
-            {
-                address,
-                event: 'Transfer',
-                args: {
-                    from: subToEth(alice.address),
-                    to: receiver,
-                    tokenId: tokenId.toString(),
-                }
-            },
-        ]);
+    const events = await recordEvents(contract, async () => {
+      await transferFromExpectSuccess(collection, tokenId, bob, alice, { ethereum: receiver }, 1, 'NFT');
     });
 
-    itWeb3('Events emitted for transfer()', async ({ web3 }) => {
-        const collection = await createCollectionExpectSuccess({
-            mode: { type: 'NFT' }
-        });
-        const alice = privateKey('//Alice');
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: subToEth(alice.address),
+          to: receiver,
+          tokenId: tokenId.toString(),
+        },
+      },
+    ]);
+  });
 
-        const receiver = createEthAccount(web3);
+  itWeb3('Events emitted for transfer()', async ({ web3 }) => {
+    const collection = await createCollectionExpectSuccess({
+      mode: { type: 'NFT' },
+    });
+    const alice = privateKey('//Alice');
 
-        const tokenId = await createItemExpectSuccess(alice, collection, 'NFT');
+    const receiver = createEthAccount(web3);
 
-        const address = collectionIdToAddress(collection);
-        const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
+    const tokenId = await createItemExpectSuccess(alice, collection, 'NFT');
 
-        const events = await recordEvents(contract, async () => {
-            await transferExpectSuccess(collection, tokenId, alice, { ethereum: receiver }, 1, 'NFT');
-        });
+    const address = collectionIdToAddress(collection);
+    const contract = new web3.eth.Contract(nonFungibleAbi as any, address);
 
-        expect(events).to.be.deep.equal([
-            {
-                address,
-                event: 'Transfer',
-                args: {
-                    from: subToEth(alice.address),
-                    to: receiver,
-                    tokenId: tokenId.toString(),
-                }
-            },
-        ]);
+    const events = await recordEvents(contract, async () => {
+      await transferExpectSuccess(collection, tokenId, alice, { ethereum: receiver }, 1, 'NFT');
     });
+
+    expect(events).to.be.deep.equal([
+      {
+        address,
+        event: 'Transfer',
+        args: {
+          from: subToEth(alice.address),
+          to: receiver,
+          tokenId: tokenId.toString(),
+        },
+      },
+    ]);
+  });
 });
\ No newline at end of file
modifiedtests/src/eth/util/helpers.tsdiffbeforeafterboth
--- a/tests/src/eth/util/helpers.ts
+++ b/tests/src/eth/util/helpers.ts
@@ -1,70 +1,75 @@
-import { ApiPromise } from "@polkadot/api";
-import { addressToEvm, evmToAddress } from "@polkadot/util-crypto";
-import Web3 from "web3";
-import usingApi, { submitTransactionAsync } from "../../substrate/substrate-api";
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import { ApiPromise } from '@polkadot/api';
+import { addressToEvm, evmToAddress } from '@polkadot/util-crypto';
+import Web3 from 'web3';
+import usingApi, { submitTransactionAsync } from '../../substrate/substrate-api';
 import { IKeyringPair } from '@polkadot/types/types';
-import { expect } from "chai";
-import { getGenericResult } from "../../util/helpers";
+import { expect } from 'chai';
+import { getGenericResult } from '../../util/helpers';
 
 let web3Connected = false;
 export async function usingWeb3<T>(cb: (web3: Web3) => Promise<T> | T): Promise<T> {
-    if (web3Connected) throw new Error('do not nest usingWeb3 calls');
-    web3Connected = true;
+  if (web3Connected) throw new Error('do not nest usingWeb3 calls');
+  web3Connected = true;
 
-    const provider = new Web3.providers.WebsocketProvider("http://localhost:9944");
-    const web3 = new Web3(provider);
+  const provider = new Web3.providers.WebsocketProvider('http://localhost:9944');
+  const web3 = new Web3(provider);
 
-    try {
-        return await cb(web3);
-    } finally {
-        // provider.disconnect(3000, 'normal disconnect');
-        provider.connection.close();
-        web3Connected = false;
-    }
+  try {
+    return await cb(web3);
+  } finally {
+    // provider.disconnect(3000, 'normal disconnect');
+    provider.connection.close();
+    web3Connected = false;
+  }
 }
 
 export function collectionIdToAddress(address: number): string {
-    if (address >= 0xffffffff || address < 0) throw new Error('id overflow');
-    const buf = Buffer.from([0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,
-        address >> 24,
-        (address >> 16) & 0xff,
-        (address >> 8) & 0xff,
-        address & 0xff,
-    ]);
-    return Web3.utils.toChecksumAddress('0x' + buf.toString('hex'));
+  if (address >= 0xffffffff || address < 0) throw new Error('id overflow');
+  const buf = Buffer.from([0x17, 0xc4, 0xe6, 0x45, 0x3c, 0xc4, 0x9a, 0xaa, 0xae, 0xac, 0xa8, 0x94, 0xe6, 0xd9, 0x68, 0x3e,
+    address >> 24,
+    (address >> 16) & 0xff,
+    (address >> 8) & 0xff,
+    address & 0xff,
+  ]);
+  return Web3.utils.toChecksumAddress('0x' + buf.toString('hex'));
 }
 
 export function createEthAccount(web3: Web3) {
-    const account = web3.eth.accounts.create();
-    web3.eth.accounts.wallet.add(account.privateKey);
-    return account.address;
+  const account = web3.eth.accounts.create();
+  web3.eth.accounts.wallet.add(account.privateKey);
+  return account.address;
 }
 
 export async function transferBalanceToEth(api: ApiPromise, source: IKeyringPair, target: string, amount: number) {
-    const tx = api.tx.balances.transfer(evmToAddress(target), amount);
-    const events = await submitTransactionAsync(source, tx);
-    const result = getGenericResult(events);
-    expect(result.success).to.be.true;
+  const tx = api.tx.balances.transfer(evmToAddress(target), amount);
+  const events = await submitTransactionAsync(source, tx);
+  const result = getGenericResult(events);
+  expect(result.success).to.be.true;
 }
 
 export async function itWeb3(name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any, opts: { only?: boolean, skip?: boolean } = {}) {
-    let i: any = it;
-    if (opts.only) i = i.only;
-    else if (opts.skip) i = i.skip;
-    i(name, async () => {
-        await usingApi(async api => {
-            await usingWeb3(async web3 => {
-                await cb({ api, web3 });
-            });
-        });
+  let i: any = it;
+  if (opts.only) i = i.only;
+  else if (opts.skip) i = i.skip;
+  i(name, async () => {
+    await usingApi(async api => {
+      await usingWeb3(async web3 => {
+        await cb({ api, web3 });
+      });
     });
+  });
 }
 itWeb3.only = (name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any) => itWeb3(name, cb, { only: true });
 itWeb3.skip = (name: string, cb: (apis: { web3: Web3, api: ApiPromise }) => any) => itWeb3(name, cb, { skip: true });
 
 export async function generateSubstrateEthPair(web3: Web3) {
-    let account = web3.eth.accounts.create();
-    const evm = evmToAddress(account.address);
+  const account = web3.eth.accounts.create();
+  evmToAddress(account.address);
 }
 
 type NormalizedEvent = {
@@ -74,43 +79,43 @@
 };
 
 export function normalizeEvents(events: any): NormalizedEvent[] {
-    const output = [];
-    for (let key of Object.keys(events)) {
-        if (key.match(/^[0-9]+$/)) {
-            output.push(events[key]);
-        } else if (Array.isArray(events[key])) {
-            output.push(...events[key]);
-        } else {
-            output.push(events[key]);
-        }
+  const output = [];
+  for (const key of Object.keys(events)) {
+    if (key.match(/^[0-9]+$/)) {
+      output.push(events[key]);
+    } else if (Array.isArray(events[key])) {
+      output.push(...events[key]);
+    } else {
+      output.push(events[key]);
     }
-    output.sort((a, b) => a.logIndex - b.logIndex);
-    return output.map(({ address, event, returnValues }) => {
-        const args: { [key: string]: string } = {};
-        for (let key of Object.keys(returnValues)) {
-            if (!key.match(/^[0-9]+$/)) {
-                args[key] = returnValues[key];
-            }
-        }
-        return {
-            address,
-            event,
-            args,
-        };
-    });
+  }
+  output.sort((a, b) => a.logIndex - b.logIndex);
+  return output.map(({ address, event, returnValues }) => {
+    const args: { [key: string]: string } = {};
+    for (const key of Object.keys(returnValues)) {
+      if (!key.match(/^[0-9]+$/)) {
+        args[key] = returnValues[key];
+      }
+    }
+    return {
+      address,
+      event,
+      args,
+    };
+  });
 }
 
 export async function recordEvents(contract: any, action: () => Promise<void>): Promise<NormalizedEvent[]> {
-    const out: any = [];
-    contract.events.allEvents((_: any, event: any) => {
-        out.push(event);
-    });
-    await action();
-    return normalizeEvents(out);
+  const out: any = [];
+  contract.events.allEvents((_: any, event: any) => {
+    out.push(event);
+  });
+  await action();
+  return normalizeEvents(out);
 }
 
 export function subToEth(eth: string): string {
-    const bytes = addressToEvm(eth);
-    const string = '0x' + Buffer.from(bytes).toString('hex');
-    return Web3.utils.toChecksumAddress(string);
+  const bytes = addressToEvm(eth);
+  const string = '0x' + Buffer.from(bytes).toString('hex');
+  return Web3.utils.toChecksumAddress(string);
 }
\ No newline at end of file
modifiedtests/src/inflation.test.tsdiffbeforeafterboth
--- a/tests/src/inflation.test.ts
+++ b/tests/src/inflation.test.ts
@@ -5,25 +5,13 @@
 
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import { default as usingApi } from "./substrate/substrate-api";
-import privateKey from "./substrate/privateKey";
+import { default as usingApi } from './substrate/substrate-api';
 import { BigNumber } from 'bignumber.js';
-import { IKeyringPair } from '@polkadot/types/types';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
-
-let alice: IKeyringPair;
-let bob: IKeyringPair;
 
 describe('integration test: Inflation', () => {
-  before(async () => {
-    await usingApi(async (api) => {
-      alice = privateKey('//Alice');
-      bob = privateKey('//Bob');
-    });
-  });
-
   it('First year inflation is 10%', async () => {
     await usingApi(async (api) => {
 
modifiedtests/src/overflow.test.tsdiffbeforeafterboth
--- a/tests/src/overflow.test.ts
+++ b/tests/src/overflow.test.ts
@@ -3,65 +3,65 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import { IKeyringPair } from "@polkadot/types/types";
+import { IKeyringPair } from '@polkadot/types/types';
 import chai from 'chai';
-import chaiAsPromised from "chai-as-promised";
-import privateKey from "./substrate/privateKey";
-import usingApi from "./substrate/substrate-api";
-import { approveExpectFail, approveExpectSuccess, createCollectionExpectSuccess, createFungibleItemExpectSuccess, getAllowance, getFungibleBalance, transferExpectFail, transferExpectSuccess, transferFromExpectFail, transferFromExpectSuccess, U128_MAX } from "./util/helpers";
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from './substrate/privateKey';
+import usingApi from './substrate/substrate-api';
+import { approveExpectFail, approveExpectSuccess, createCollectionExpectSuccess, createFungibleItemExpectSuccess, getAllowance, getFungibleBalance, transferExpectFail, transferExpectSuccess, transferFromExpectFail, transferFromExpectSuccess, U128_MAX } from './util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
 
 describe('Integration Test fungible overflows', () => {
-    let alice: IKeyringPair;
-    let bob: IKeyringPair;
-    let charlie: IKeyringPair;
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
+  let charlie: IKeyringPair;
 
-    before(async () => {
-        await usingApi(async () => {
-            alice = privateKey('//Alice');
-            bob = privateKey('//Bob');
-            charlie = privateKey('//Charlie');
-        });
+  before(async () => {
+    await usingApi(async () => {
+      alice = privateKey('//Alice');
+      bob = privateKey('//Bob');
+      charlie = privateKey('//Charlie');
     });
+  });
 
-    it('fails when overflows on transfer', async () => {
-        const fungibleCollectionId = await createCollectionExpectSuccess({ mode: { type: 'Fungible', decimalPoints: 0 } });
+  it('fails when overflows on transfer', async () => {
+    const fungibleCollectionId = await createCollectionExpectSuccess({ mode: { type: 'Fungible', decimalPoints: 0 } });
 
-        await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: U128_MAX });
-        await transferExpectSuccess(fungibleCollectionId, 0, alice, bob, U128_MAX, 'Fungible');
+    await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: U128_MAX });
+    await transferExpectSuccess(fungibleCollectionId, 0, alice, bob, U128_MAX, 'Fungible');
 
-        await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: 1n });
-        await transferExpectFail(fungibleCollectionId, 0, alice, bob, 1, 'Fungible');
+    await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: 1n });
+    await transferExpectFail(fungibleCollectionId, 0, alice, bob, 1, 'Fungible');
 
-        expect(await getFungibleBalance(fungibleCollectionId, alice.address)).to.equal(1n);
-        expect(await getFungibleBalance(fungibleCollectionId, bob.address)).to.equal(U128_MAX);
-    });
+    expect(await getFungibleBalance(fungibleCollectionId, alice.address)).to.equal(1n);
+    expect(await getFungibleBalance(fungibleCollectionId, bob.address)).to.equal(U128_MAX);
+  });
 
-    it('fails on allowance overflow', async () => {
-        const fungibleCollectionId = await createCollectionExpectSuccess({ mode: { type: 'Fungible', decimalPoints: 0 } });
+  it('fails on allowance overflow', async () => {
+    const fungibleCollectionId = await createCollectionExpectSuccess({ mode: { type: 'Fungible', decimalPoints: 0 } });
 
-        await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: U128_MAX });
-        await approveExpectSuccess(fungibleCollectionId, 0, alice, bob, U128_MAX);
-        await approveExpectFail(fungibleCollectionId, 0, alice, bob, U128_MAX);
-    });
+    await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: U128_MAX });
+    await approveExpectSuccess(fungibleCollectionId, 0, alice, bob, U128_MAX);
+    await approveExpectFail(fungibleCollectionId, 0, alice, bob, U128_MAX);
+  });
 
-    it('fails when overflows on transferFrom', async () => {
-        const fungibleCollectionId = await createCollectionExpectSuccess({ mode: { type: 'Fungible', decimalPoints: 0 } });
+  it('fails when overflows on transferFrom', async () => {
+    const fungibleCollectionId = await createCollectionExpectSuccess({ mode: { type: 'Fungible', decimalPoints: 0 } });
 
-        await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: U128_MAX });
-        await approveExpectSuccess(fungibleCollectionId, 0, alice, bob, U128_MAX);
-        await transferFromExpectSuccess(fungibleCollectionId, 0, bob, alice, charlie, U128_MAX, 'Fungible');
+    await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: U128_MAX });
+    await approveExpectSuccess(fungibleCollectionId, 0, alice, bob, U128_MAX);
+    await transferFromExpectSuccess(fungibleCollectionId, 0, bob, alice, charlie, U128_MAX, 'Fungible');
 
-        expect(await getFungibleBalance(fungibleCollectionId, charlie.address)).to.equal(U128_MAX);
-        expect((await getAllowance(fungibleCollectionId, 0, alice.address, bob.address)).toString()).to.equal('0');
+    expect(await getFungibleBalance(fungibleCollectionId, charlie.address)).to.equal(U128_MAX);
+    expect((await getAllowance(fungibleCollectionId, 0, alice.address, bob.address)).toString()).to.equal('0');
 
-        await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: U128_MAX });
-        await approveExpectSuccess(fungibleCollectionId, 0, alice, bob, 1n);
-        await transferFromExpectFail(fungibleCollectionId, 0, bob, alice, charlie, 1);
+    await createFungibleItemExpectSuccess(alice, fungibleCollectionId, { Value: U128_MAX });
+    await approveExpectSuccess(fungibleCollectionId, 0, alice, bob, 1n);
+    await transferFromExpectFail(fungibleCollectionId, 0, bob, alice, charlie, 1);
 
-        expect(await getFungibleBalance(fungibleCollectionId, charlie.address)).to.equal(U128_MAX);
-        expect((await getAllowance(fungibleCollectionId, 0, alice.address, bob.address)).toString()).to.equal('1');
-    });
+    expect(await getFungibleBalance(fungibleCollectionId, charlie.address)).to.equal(U128_MAX);
+    expect((await getAllowance(fungibleCollectionId, 0, alice.address, bob.address)).toString()).to.equal('1');
+  });
 });
modifiedtests/src/pallet-presence.test.tsdiffbeforeafterboth
--- a/tests/src/pallet-presence.test.ts
+++ b/tests/src/pallet-presence.test.ts
@@ -3,9 +3,9 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import { ApiPromise } from "@polkadot/api";
-import { expect } from "chai";
-import usingApi from "./substrate/substrate-api";
+import { ApiPromise } from '@polkadot/api';
+import { expect } from 'chai';
+import usingApi from './substrate/substrate-api';
 
 function getModuleNames(api: ApiPromise): string[] {
   return api.runtimeMetadata.asLatest.modules.map(m => m.name.toString().toLowerCase());
@@ -14,12 +14,12 @@
 // Pallets that must always be present
 const requiredPallets = [
   'nft', 'inflation', 'balances', 'contracts', 'randomnesscollectiveflip', 'system', 'timestamp', 'transactionpayment', 'treasury', 'vesting', 'evm', 'ethereum',
-  'scheduler', 'nftpayment', 'charging'
+  'scheduler', 'nftpayment', 'charging',
 ];
 
 // Pallets that depend on consensus and governance configuration
 const consensusPallets = [
-  'sudo', 'aura'
+  'sudo', 'aura',
 ];
 
 describe('Pallet presence', () => {
modifiedtests/src/removeCollectionSponsor.test.tsdiffbeforeafterboth
--- a/tests/src/removeCollectionSponsor.test.ts
+++ b/tests/src/removeCollectionSponsor.test.ts
@@ -5,27 +5,21 @@
 
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";
+import { default as usingApi, submitTransactionExpectFailAsync } from './substrate/substrate-api';
 import { 
   createCollectionExpectSuccess, 
   setCollectionSponsorExpectSuccess, 
   destroyCollectionExpectSuccess, 
-  setCollectionSponsorExpectFailure,
   confirmSponsorshipExpectSuccess,
   confirmSponsorshipExpectFailure,
   createItemExpectSuccess,
   findUnusedAddress,
-  getGenericResult,
-  enableWhiteListExpectSuccess,
-  enablePublicMintingExpectSuccess,
-  addToWhiteListExpectSuccess,
   removeCollectionSponsorExpectSuccess,
   removeCollectionSponsorExpectFailure,
   normalizeAccountId,
-} from "./util/helpers";
-import { Keyring } from "@polkadot/api";
-import { IKeyringPair } from "@polkadot/types/types";
-import type { AccountId } from '@polkadot/types/interfaces';
+} from './util/helpers';
+import { Keyring } from '@polkadot/api';
+import { IKeyringPair } from '@polkadot/types/types';
 import { BigNumber } from 'bignumber.js';
 
 chai.use(chaiAsPromised);
@@ -33,16 +27,14 @@
 
 let alice: IKeyringPair;
 let bob: IKeyringPair;
-let charlie: IKeyringPair;
 
 describe('integration test: ext. removeCollectionSponsor():', () => {
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const keyring = new Keyring({ type: 'sr25519' });
-      alice = keyring.addFromUri(`//Alice`);
-      bob = keyring.addFromUri(`//Bob`);
-      charlie = keyring.addFromUri(`//Charlie`);
+      alice = keyring.addFromUri('//Alice');
+      bob = keyring.addFromUri('//Bob');
     });
   });
 
@@ -65,7 +57,7 @@
       const badTransaction = async function () { 
         await submitTransactionExpectFailAsync(zeroBalance, zeroToAlice);
       };
-      await expect(badTransaction()).to.be.rejectedWith("Inability to pay some fees");
+      await expect(badTransaction()).to.be.rejectedWith('Inability to pay some fees');
       const BsponsorBalance = new BigNumber((await api.query.system.account(bob.address)).data.free.toString());
 
       expect(BsponsorBalance.isEqualTo(AsponsorBalance)).to.be.true;
@@ -95,19 +87,18 @@
 
 describe('(!negative test!) integration test: ext. removeCollectionSponsor():', () => {
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const keyring = new Keyring({ type: 'sr25519' });
-      alice = keyring.addFromUri(`//Alice`);
-      bob = keyring.addFromUri(`//Bob`);
-      charlie = keyring.addFromUri(`//Charlie`);
+      alice = keyring.addFromUri('//Alice');
+      bob = keyring.addFromUri('//Bob');
     });
   });
 
   it('(!negative test!) Remove sponsor for a collection that never existed', async () => {
     // Find the collection that never existed
-    const collectionId = 0;
+    let collectionId = 0;
     await usingApi(async (api) => {
-      const collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
+      collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
     });
 
     await removeCollectionSponsorExpectFailure(collectionId);
modifiedtests/src/removeFromContractWhiteList.test.tsdiffbeforeafterboth
--- a/tests/src/removeFromContractWhiteList.test.ts
+++ b/tests/src/removeFromContractWhiteList.test.ts
@@ -3,79 +3,79 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import privateKey from "./substrate/privateKey";
-import usingApi from "./substrate/substrate-api";
-import { deployFlipper, toggleFlipValueExpectFailure, toggleFlipValueExpectSuccess } from "./util/contracthelpers";
-import { addToContractWhiteListExpectSuccess, isWhitelistedInContract, removeFromContractWhiteListExpectFailure, removeFromContractWhiteListExpectSuccess, toggleContractWhitelistExpectSuccess } from "./util/helpers";
+import privateKey from './substrate/privateKey';
+import usingApi from './substrate/substrate-api';
+import { deployFlipper, toggleFlipValueExpectFailure, toggleFlipValueExpectSuccess } from './util/contracthelpers';
+import { addToContractWhiteListExpectSuccess, isWhitelistedInContract, removeFromContractWhiteListExpectFailure, removeFromContractWhiteListExpectSuccess, toggleContractWhitelistExpectSuccess } from './util/helpers';
 import { IKeyringPair } from '@polkadot/types/types';
-import { expect } from "chai";
+import { expect } from 'chai';
 
 describe('Integration Test removeFromContractWhiteList', () => {
-    let bob: IKeyringPair;
+  let bob: IKeyringPair;
 
-    before(async () => {
-        await usingApi(async () => {
-            bob = privateKey('//Bob');
-        });
+  before(async () => {
+    await usingApi(async () => {
+      bob = privateKey('//Bob');
     });
+  });
 
-    it('user is no longer whitelisted after removal', async () => {
-        await usingApi(async (api) => {
-            const [flipper, deployer] = await deployFlipper(api);
+  it('user is no longer whitelisted after removal', async () => {
+    await usingApi(async (api) => {
+      const [flipper, deployer] = await deployFlipper(api);
 
-            await addToContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-            await removeFromContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await addToContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await removeFromContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
 
-            expect(await isWhitelistedInContract(flipper.address, bob.address)).to.be.false;
-        });
+      expect(await isWhitelistedInContract(flipper.address, bob.address)).to.be.false;
     });
+  });
 
-    it('user can\'t execute contract after removal', async () => {
-        await usingApi(async (api) => {
-            const [flipper, deployer] = await deployFlipper(api);
-            await toggleContractWhitelistExpectSuccess(deployer, flipper.address.toString(), true);
+  it('user can\'t execute contract after removal', async () => {
+    await usingApi(async (api) => {
+      const [flipper, deployer] = await deployFlipper(api);
+      await toggleContractWhitelistExpectSuccess(deployer, flipper.address.toString(), true);
 
-            await addToContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-            await toggleFlipValueExpectSuccess(bob, flipper);
+      await addToContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await toggleFlipValueExpectSuccess(bob, flipper);
 
-            await removeFromContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-            await toggleFlipValueExpectFailure(bob, flipper);
-        });
+      await removeFromContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await toggleFlipValueExpectFailure(bob, flipper);
     });
+  });
 
-    it('can be called twice', async () => {
-        await usingApi(async (api) => {
-            const [flipper, deployer] = await deployFlipper(api);
+  it('can be called twice', async () => {
+    await usingApi(async (api) => {
+      const [flipper, deployer] = await deployFlipper(api);
 
-            await addToContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-            await removeFromContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-            await removeFromContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
-        });
+      await addToContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await removeFromContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
+      await removeFromContractWhiteListExpectSuccess(deployer, flipper.address.toString(), bob.address);
     });
+  });
 });
 
 describe('Negative Integration Test removeFromContractWhiteList', () => {
-    let alice: IKeyringPair;
-    let bob: IKeyringPair;
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
 
-    before(async () => {
-        await usingApi(async () => {
-            alice = privateKey('//Alice');
-            bob = privateKey('//Bob');
-        });
+  before(async () => {
+    await usingApi(async () => {
+      alice = privateKey('//Alice');
+      bob = privateKey('//Bob');
     });
+  });
 
-    it('fails when called with non-contract address', async () => {
-        await usingApi(async () => {
-            await removeFromContractWhiteListExpectFailure(alice, alice.address, bob.address);
-        });
+  it('fails when called with non-contract address', async () => {
+    await usingApi(async () => {
+      await removeFromContractWhiteListExpectFailure(alice, alice.address, bob.address);
     });
+  });
 
-    it('fails when executed by non owner', async () => {
-        await usingApi(async (api) => {
-            const [flipper, _] = await deployFlipper(api);
+  it('fails when executed by non owner', async () => {
+    await usingApi(async (api) => {
+      const [flipper] = await deployFlipper(api);
 
-            await removeFromContractWhiteListExpectFailure(alice, flipper.address.toString(), bob.address);
-        });
+      await removeFromContractWhiteListExpectFailure(alice, flipper.address.toString(), bob.address);
     });
+  });
 });
modifiedtests/src/removeFromWhiteList.test.tsdiffbeforeafterboth
--- a/tests/src/removeFromWhiteList.test.ts
+++ b/tests/src/removeFromWhiteList.test.ts
@@ -16,7 +16,7 @@
   findNotExistingCollection,
   removeFromWhiteListExpectFailure,
   disableWhiteListExpectSuccess,
-  normalizeAccountId
+  normalizeAccountId,
 } from './util/helpers';
 import { IKeyringPair } from '@polkadot/types/types';
 import privateKey from './substrate/privateKey';
@@ -29,7 +29,7 @@
   let bob: IKeyringPair;
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       alice = privateKey('//Alice');
       bob = privateKey('//Bob');
     });
@@ -63,7 +63,7 @@
   let bob: IKeyringPair;
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       alice = privateKey('//Alice');
       bob = privateKey('//Bob');
     });
modifiedtests/src/rpc.load.tsdiffbeforeafterboth
--- a/tests/src/rpc.load.ts
+++ b/tests/src/rpc.load.ts
@@ -3,24 +3,22 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import { expect, assert } from "chai";
-import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";
-import { IKeyringPair } from "@polkadot/types/types";
-import { Abi, BlueprintPromise as Blueprint, CodePromise, ContractPromise as Contract } from "@polkadot/api-contract";
-import { ApiPromise, Keyring } from "@polkadot/api";
-import { ApiTypes, SubmittableExtrinsic } from "@polkadot/api/types";
+import usingApi, { submitTransactionAsync } from './substrate/substrate-api';
+import { IKeyringPair } from '@polkadot/types/types';
+import { Abi, BlueprintPromise as Blueprint, CodePromise, ContractPromise as Contract } from '@polkadot/api-contract';
+import { ApiPromise, Keyring } from '@polkadot/api';
 import { BigNumber } from 'bignumber.js';
-import { findUnusedAddress } from './util/helpers'
-import fs from "fs";
-import privateKey from "./substrate/privateKey";
+import { findUnusedAddress } from './util/helpers';
+import fs from 'fs';
+import privateKey from './substrate/privateKey';
 
 const value = 0;
 const gasLimit = 500000n * 1000000n;
-const endowment = `1000000000000000`;
-
+const endowment = '1000000000000000';
 
+/*eslint no-async-promise-executor: "off"*/
 function deployBlueprint(alice: IKeyringPair, code: CodePromise): Promise<Blueprint> {
-  return new Promise<Blueprint>(async (resolve, reject) => {
+  return new Promise<Blueprint>(async (resolve) => {
     const unsub = await code
       .createBlueprint()
       .signAndSend(alice, (result) => {
@@ -29,20 +27,21 @@
           resolve(result.blueprint);
           unsub();
         }
-      })
+      });
   });
 }
 
+/*eslint no-async-promise-executor: "off"*/
 function deployContract(alice: IKeyringPair, blueprint: Blueprint) : Promise<any> {
-  return new Promise<any>(async (resolve, reject) => {
+  return new Promise<any>(async (resolve) => {
     const unsub = await blueprint.tx
-    .new(endowment, gasLimit)
-    .signAndSend(alice, (result) => {
-      if (result.status.isInBlock || result.status.isFinalized) {
-        unsub();
-        resolve(result);
-      }
-    });    
+      .new(endowment, gasLimit)
+      .signAndSend(alice, (result) => {
+        if (result.status.isInBlock || result.status.isFinalized) {
+          unsub();
+          resolve(result);
+        }
+      });    
   });
 }
 
@@ -52,7 +51,7 @@
 
   // Transfer balance to it
   const keyring = new Keyring({ type: 'sr25519' });
-  const alice = keyring.addFromUri(`//Alice`);
+  const alice = keyring.addFromUri('//Alice');
   let amount = new BigNumber(endowment);
   amount = amount.plus(1e15);
   const tx = api.tx.balances.transfer(deployer.address, amount.toFixed());
@@ -81,7 +80,7 @@
   const result = await contract.query.get(deployer.address, value, gasLimit);
 
   if(!result.result.isSuccess) {
-    throw `Failed to get value`;
+    throw 'Failed to get value';
   }
   return result.result.asSuccess.data;
 }
@@ -95,6 +94,8 @@
       let microsec1 = hrTime[0] * 1000000 + hrTime[1] / 1000;
       let rate = 0;
       const checkPoint = 1000;
+
+      /* eslint no-constant-condition: "off" */
       while (true) {
         await api.rpc.system.chain();
         count++;
@@ -102,7 +103,7 @@
     
         if (count % checkPoint == 0) {
           hrTime = process.hrtime();
-          let microsec2 = hrTime[0] * 1000000 + hrTime[1] / 1000;
+          const microsec2 = hrTime[0] * 1000000 + hrTime[1] / 1000;
           rate = 1000000*checkPoint/(microsec2 - microsec1);
           microsec1 = microsec2;
         }
@@ -117,7 +118,7 @@
       const [contract, deployer] = await deployLoadTester(api);
 
       // Fill smart contract up with data
-      const bob = privateKey("//Bob");
+      const bob = privateKey('//Bob');
       const tx = contract.tx.bloat(value, gasLimit, 200);
       await submitTransactionAsync(bob, tx);
 
@@ -127,6 +128,8 @@
       let microsec1 = hrTime[0] * 1000000 + hrTime[1] / 1000;
       let rate = 0;
       const checkPoint = 10;
+
+      /* eslint no-constant-condition: "off" */
       while (true) {
         await getScData(contract, deployer);
         count++;
@@ -134,7 +137,7 @@
     
         if (count % checkPoint == 0) {
           hrTime = process.hrtime();
-          let microsec2 = hrTime[0] * 1000000 + hrTime[1] / 1000;
+          const microsec2 = hrTime[0] * 1000000 + hrTime[1] / 1000;
           rate = 1000000*checkPoint/(microsec2 - microsec1);
           microsec1 = microsec2;
         }
modifiedtests/src/scheduler.test.tsdiffbeforeafterboth
--- a/tests/src/scheduler.test.ts
+++ b/tests/src/scheduler.test.ts
@@ -3,7 +3,6 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import { IKeyringPair } from '@polkadot/types/types';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
 import privateKey from './substrate/privateKey';
@@ -11,34 +10,16 @@
 import {
   createItemExpectSuccess,
   createCollectionExpectSuccess,
-  destroyCollectionExpectSuccess,
-  findNotExistingCollection,
-  queryCollectionExpectSuccess,
-  setOffchainSchemaExpectFailure,
-  setOffchainSchemaExpectSuccess,
-  transferExpectSuccess,
   scheduleTransferExpectSuccess,
   setCollectionSponsorExpectSuccess,
-  confirmSponsorshipExpectSuccess
+  confirmSponsorshipExpectSuccess,
 } from './util/helpers';
-
 
 chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-const DATA = [1, 2, 3, 4];
 
 describe('Integration Test scheduler base transaction', () => {
-  let alice: IKeyringPair;
-
-  before(async () => {
+  it('User can transfer owned token with delay (scheduler)', async () => {
     await usingApi(async () => {
-      alice = privateKey('//Alice');
-    });
-  });
-
-  it('User can transfer owned token with delay (scheduler)', async () => {
-    await usingApi(async (api) => {
       const Alice = privateKey('//Alice');
       const Bob = privateKey('//Bob');
       // nft
@@ -50,45 +31,4 @@
       await scheduleTransferExpectSuccess(nftCollectionId, newNftTokenId, Alice, Bob, 1, 'NFT');
     });
   });
-
-  
 });
-
-// describe('Negative Integration Test setOffchainSchema', () => {
-//   let alice: IKeyringPair;
-//   let bob: IKeyringPair;
-
-//   let validCollectionId: number;
-
-//   before(async () => {
-//     await usingApi(async () => {
-//       alice = privateKey('//Alice');
-//       bob = privateKey('//Bob');
-
-//       validCollectionId = await createCollectionExpectSuccess({ mode: { type: 'NFT' } });
-//     });
-//   });
-
-//   it('fails on not existing collection id', async () => {
-//     const nonExistingCollectionId = await usingApi(findNotExistingCollection);
-
-//     await setOffchainSchemaExpectFailure(alice, nonExistingCollectionId, DATA);
-//   });
-
-//   it('fails on destroyed collection id', async () => {
-//     const destroyedCollectionId = await createCollectionExpectSuccess({ mode: { type: 'NFT' } });
-//     await destroyCollectionExpectSuccess(destroyedCollectionId);
-
-//     await setOffchainSchemaExpectFailure(alice, destroyedCollectionId, DATA);
-//   });
-
-//   it('fails on too long data', async () => {
-//     const tooLongData = new Array(4097).fill(0xff);
-
-//     await setOffchainSchemaExpectFailure(alice, validCollectionId, tooLongData);
-//   });
-
-//   it('fails on execution by non-owner', async () => {
-//     await setOffchainSchemaExpectFailure(bob, validCollectionId, DATA);
-//   });
-// });
modifiedtests/src/setCollectionLimits.test.tsdiffbeforeafterboth
--- a/tests/src/setCollectionLimits.test.ts
+++ b/tests/src/setCollectionLimits.test.ts
@@ -50,7 +50,7 @@
           TokenLimit: tokenLimit,
           SponsorTimeout: sponsorTimeout,
           OwnerCanTransfer: true,
-          OwnerCanDestroy: true
+          OwnerCanDestroy: true,
         },
       );
       const events = await submitTransactionAsync(alice, tx);
@@ -73,13 +73,13 @@
   it('Set the same token limit twice', async () => {
     await usingApi(async (api: ApiPromise) => {
 
-      let collectionLimits = {
+      const collectionLimits = {
         AccountTokenOwnershipLimit: accountTokenOwnershipLimit,
         SponsoredMintSize: sponsoredDataSize,
         TokenLimit: tokenLimit,
         SponsorTimeout: sponsorTimeout,
         OwnerCanTransfer: true,
-        OwnerCanDestroy: true
+        OwnerCanDestroy: true,
       };
 
       // The first time
@@ -173,7 +173,7 @@
       TokenLimit: tokenLimit,
       SponsorTimeout: sponsorTimeout,
       OwnerCanTransfer: false,
-      OwnerCanDestroy: true
+      OwnerCanDestroy: true,
     });
     await setCollectionLimitsExpectFailure(alice, collectionId, { 
       AccountTokenOwnershipLimit: accountTokenOwnershipLimit,
@@ -181,7 +181,7 @@
       TokenLimit: tokenLimit,
       SponsorTimeout: sponsorTimeout,
       OwnerCanTransfer: true,
-      OwnerCanDestroy: true
+      OwnerCanDestroy: true,
     });
   });
 
@@ -193,7 +193,7 @@
       TokenLimit: tokenLimit,
       SponsorTimeout: sponsorTimeout,
       OwnerCanTransfer: true,
-      OwnerCanDestroy: false
+      OwnerCanDestroy: false,
     });
     await setCollectionLimitsExpectFailure(alice, collectionId, { 
       AccountTokenOwnershipLimit: accountTokenOwnershipLimit,
@@ -201,21 +201,21 @@
       TokenLimit: tokenLimit,
       SponsorTimeout: sponsorTimeout,
       OwnerCanTransfer: true,
-      OwnerCanDestroy: true
+      OwnerCanDestroy: true,
     });
   });
 
   it('Setting the higher token limit fails', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
 
       const collectionId = await createCollectionExpectSuccess();
-      let collectionLimits = {
+      const collectionLimits = {
         AccountTokenOwnershipLimit: accountTokenOwnershipLimit,
         SponsoredMintSize: sponsoredDataSize,
         TokenLimit: tokenLimit,
         SponsorTimeout: sponsorTimeout,
         OwnerCanTransfer: true,
-        OwnerCanDestroy: true
+        OwnerCanDestroy: true,
       };
 
       // The first time
modifiedtests/src/setCollectionSponsor.test.tsdiffbeforeafterboth
--- a/tests/src/setCollectionSponsor.test.ts
+++ b/tests/src/setCollectionSponsor.test.ts
@@ -5,22 +5,21 @@
 
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import { default as usingApi } from "./substrate/substrate-api";
-import { createCollectionExpectSuccess, setCollectionSponsorExpectSuccess, destroyCollectionExpectSuccess, setCollectionSponsorExpectFailure } from "./util/helpers";
-import { Keyring } from "@polkadot/api";
-import { IKeyringPair } from "@polkadot/types/types";
+import { default as usingApi } from './substrate/substrate-api';
+import { createCollectionExpectSuccess, setCollectionSponsorExpectSuccess, destroyCollectionExpectSuccess, setCollectionSponsorExpectFailure } from './util/helpers';
+import { Keyring } from '@polkadot/api';
+import { IKeyringPair } from '@polkadot/types/types';
 
 chai.use(chaiAsPromised);
-const expect = chai.expect;
 
 let bob: IKeyringPair;
 
 describe('integration test: ext. setCollectionSponsor():', () => {
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const keyring = new Keyring({ type: 'sr25519' });
-      bob = keyring.addFromUri(`//Bob`);
+      bob = keyring.addFromUri('//Bob');
     });
   });
 
@@ -46,7 +45,7 @@
     const collectionId = await createCollectionExpectSuccess();
 
     const keyring = new Keyring({ type: 'sr25519' });
-    const charlie = keyring.addFromUri(`//Charlie`);
+    const charlie = keyring.addFromUri('//Charlie');
     await setCollectionSponsorExpectSuccess(collectionId, bob.address);
     await setCollectionSponsorExpectSuccess(collectionId, charlie.address);
   });
@@ -54,9 +53,9 @@
 
 describe('(!negative test!) integration test: ext. setCollectionSponsor():', () => {
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const keyring = new Keyring({ type: 'sr25519' });
-      bob = keyring.addFromUri(`//Bob`);
+      bob = keyring.addFromUri('//Bob');
     });
   });
 
@@ -66,9 +65,9 @@
   });
   it('(!negative test!) Add sponsor to a collection that never existed', async () => {
     // Find the collection that never existed
-    const collectionId = 0;
+    let collectionId = 0;
     await usingApi(async (api) => {
-      const collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
+      collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
     });
 
     await setCollectionSponsorExpectFailure(collectionId, bob.address);
modifiedtests/src/setConstOnChainSchema.test.tsdiffbeforeafterboth
--- a/tests/src/setConstOnChainSchema.test.ts
+++ b/tests/src/setConstOnChainSchema.test.ts
@@ -23,7 +23,7 @@
 let largeShema: any;
 
 before(async () => {
-  await usingApi(async (api) => {
+  await usingApi(async () => {
     const keyring = new Keyring({ type: 'sr25519' });
     Alice = keyring.addFromUri('//Alice');
     Bob = keyring.addFromUri('//Bob');
@@ -35,7 +35,7 @@
 describe('Integration Test ext. setConstOnChainSchema()', () => {
 
   it('Run extrinsic with parameters of the collection id, set the scheme', async () => {
-      await usingApi(async (api) => {
+    await usingApi(async (api) => {
       const collectionId = await createCollectionExpectSuccess();
       const collection: any = (await api.query.nft.collectionById(collectionId)).toJSON();
       expect(collection.Owner).to.be.deep.eq(normalizeAccountId(Alice.address));
@@ -45,12 +45,12 @@
   });
 
   it('Checking collection data using the ConstOnChainSchema parameter', async () => {
-      await usingApi(async (api) => {
-        const collectionId = await createCollectionExpectSuccess();
-        const setShema = api.tx.nft.setConstOnChainSchema(collectionId, Shema);
-        await submitTransactionAsync(Alice, setShema);
-        const collection: any = (await api.query.nft.collectionById(collectionId)).toJSON();
-        expect(collection.ConstOnChainSchema.toString()).to.be.eq(Shema);
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const setShema = api.tx.nft.setConstOnChainSchema(collectionId, Shema);
+      await submitTransactionAsync(Alice, setShema);
+      const collection: any = (await api.query.nft.collectionById(collectionId)).toJSON();
+      expect(collection.ConstOnChainSchema.toString()).to.be.eq(Shema);
 
     });
   });
modifiedtests/src/setContractSponsoringRateLimit.test.tsdiffbeforeafterboth
--- a/tests/src/setContractSponsoringRateLimit.test.ts
+++ b/tests/src/setContractSponsoringRateLimit.test.ts
@@ -59,7 +59,7 @@
 
   it('fails when called by non-owning user', async () => {
     await usingApi(async (api) => {
-      const [flipper, _] = await deployFlipper(api);
+      const [flipper] = await deployFlipper(api);
 
       await setContractSponsoringRateLimitExpectFailure(alice, flipper.address, 1);
     });
modifiedtests/src/setPublicAccessMode.test.tsdiffbeforeafterboth
--- a/tests/src/setPublicAccessMode.test.ts
+++ b/tests/src/setPublicAccessMode.test.ts
@@ -1,95 +1,94 @@
-//
-// This file is subject to the terms and conditions defined in
-// file 'LICENSE', which is part of this source code package.
-//
-
-// https://unique-network.readthedocs.io/en/latest/jsapi.html#setschemaversion
-import { ApiPromise, Keyring } from '@polkadot/api';
-import { IKeyringPair } from '@polkadot/types/types';
-import chai from 'chai';
-import chaiAsPromised from 'chai-as-promised';
-import privateKey from './substrate/privateKey';
-import usingApi, {submitTransactionExpectFailAsync} from './substrate/substrate-api';
-import {
-  addToWhiteListExpectSuccess,
-  createCollectionExpectSuccess,
-  createItemExpectSuccess,
-  destroyCollectionExpectSuccess,
-  enablePublicMintingExpectSuccess,
-  enableWhiteListExpectSuccess,
-  normalizeAccountId,
-} from './util/helpers';
-import { utf16ToStr } from './util/util';
-
-chai.use(chaiAsPromised);
-const expect = chai.expect;
-
-let Alice: IKeyringPair;
-let Bob: IKeyringPair;
-
-describe('Integration Test setPublicAccessMode(): ', () => {
-  before(async () => {
-    await usingApi(async (api) => {
-      Alice = privateKey('//Alice');
-      Bob = privateKey('//Bob');
-    });
-  });
-
-  it('Run extrinsic with collection id parameters, set the whitelist mode for the collection', async () => {
-    await usingApi(async (api: ApiPromise) => {
-      const collectionId: number = await createCollectionExpectSuccess();
-      await enableWhiteListExpectSuccess(Alice, collectionId);
-      await enablePublicMintingExpectSuccess(Alice, collectionId);
-      await addToWhiteListExpectSuccess(Alice, collectionId, Bob.address);
-      await createItemExpectSuccess(Bob, collectionId, 'NFT', Bob.address);
-    });
-  });
-
-  it('Whitelisted collection limits', async () => {
-    await usingApi(async (api: ApiPromise) => {
-      const collectionId = await createCollectionExpectSuccess();
-      await enableWhiteListExpectSuccess(Alice, collectionId);
-      await enablePublicMintingExpectSuccess(Alice, collectionId);
-      const tx = api.tx.nft.createItem(collectionId, normalizeAccountId(Bob.address), 'NFT');
-      await expect(submitTransactionExpectFailAsync(Bob, tx)).to.be.rejected;
-    });
-  });
-});
-
-describe('Negative Integration Test ext. setPublicAccessMode(): ', () => {
-  it('Set a non-existent collection', async () => {
-    await usingApi(async (api: ApiPromise) => {
-      // tslint:disable-next-line: radix
-      const collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
-      const tx = api.tx.nft.setPublicAccessMode(collectionId, 'WhiteList');
-      await expect(submitTransactionExpectFailAsync(Alice, tx)).to.be.rejected;
-    });
-  });
-
-  it('Set the collection that has been deleted', async () => {
-    await usingApi(async (api: ApiPromise) => {
-      // tslint:disable-next-line: no-bitwise
-      const collectionId = await createCollectionExpectSuccess();
-      await destroyCollectionExpectSuccess(collectionId);
-      const tx = api.tx.nft.setPublicAccessMode(collectionId, 'WhiteList');
-      await expect(submitTransactionExpectFailAsync(Alice, tx)).to.be.rejected;
-    });
-  });
-
-  it('Re-set the list mode already set in quantity', async () => {
-    await usingApi(async (api: ApiPromise) => {
-      const collectionId: number = await createCollectionExpectSuccess();
-      await enableWhiteListExpectSuccess(Alice, collectionId);
-      await enableWhiteListExpectSuccess(Alice, collectionId);
-    });
-  });
-
-  it('Execute method not on behalf of the collection owner', async () => {
-    await usingApi(async (api: ApiPromise) => {
-      // tslint:disable-next-line: no-bitwise
-      const collectionId = await createCollectionExpectSuccess();
-      const tx = api.tx.nft.setPublicAccessMode(collectionId, 'WhiteList');
-      await expect(submitTransactionExpectFailAsync(Bob, tx)).to.be.rejected;
-    });
-  });
-});
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+// https://unique-network.readthedocs.io/en/latest/jsapi.html#setschemaversion
+import { ApiPromise } from '@polkadot/api';
+import { IKeyringPair } from '@polkadot/types/types';
+import chai from 'chai';
+import chaiAsPromised from 'chai-as-promised';
+import privateKey from './substrate/privateKey';
+import usingApi, {submitTransactionExpectFailAsync} from './substrate/substrate-api';
+import {
+  addToWhiteListExpectSuccess,
+  createCollectionExpectSuccess,
+  createItemExpectSuccess,
+  destroyCollectionExpectSuccess,
+  enablePublicMintingExpectSuccess,
+  enableWhiteListExpectSuccess,
+  normalizeAccountId,
+} from './util/helpers';
+
+chai.use(chaiAsPromised);
+const expect = chai.expect;
+
+let Alice: IKeyringPair;
+let Bob: IKeyringPair;
+
+describe('Integration Test setPublicAccessMode(): ', () => {
+  before(async () => {
+    await usingApi(async () => {
+      Alice = privateKey('//Alice');
+      Bob = privateKey('//Bob');
+    });
+  });
+
+  it('Run extrinsic with collection id parameters, set the whitelist mode for the collection', async () => {
+    await usingApi(async () => {
+      const collectionId: number = await createCollectionExpectSuccess();
+      await enableWhiteListExpectSuccess(Alice, collectionId);
+      await enablePublicMintingExpectSuccess(Alice, collectionId);
+      await addToWhiteListExpectSuccess(Alice, collectionId, Bob.address);
+      await createItemExpectSuccess(Bob, collectionId, 'NFT', Bob.address);
+    });
+  });
+
+  it('Whitelisted collection limits', async () => {
+    await usingApi(async (api: ApiPromise) => {
+      const collectionId = await createCollectionExpectSuccess();
+      await enableWhiteListExpectSuccess(Alice, collectionId);
+      await enablePublicMintingExpectSuccess(Alice, collectionId);
+      const tx = api.tx.nft.createItem(collectionId, normalizeAccountId(Bob.address), 'NFT');
+      await expect(submitTransactionExpectFailAsync(Bob, tx)).to.be.rejected;
+    });
+  });
+});
+
+describe('Negative Integration Test ext. setPublicAccessMode(): ', () => {
+  it('Set a non-existent collection', async () => {
+    await usingApi(async (api: ApiPromise) => {
+      // tslint:disable-next-line: radix
+      const collectionId = parseInt((await api.query.nft.createdCollectionCount()).toString()) + 1;
+      const tx = api.tx.nft.setPublicAccessMode(collectionId, 'WhiteList');
+      await expect(submitTransactionExpectFailAsync(Alice, tx)).to.be.rejected;
+    });
+  });
+
+  it('Set the collection that has been deleted', async () => {
+    await usingApi(async (api: ApiPromise) => {
+      // tslint:disable-next-line: no-bitwise
+      const collectionId = await createCollectionExpectSuccess();
+      await destroyCollectionExpectSuccess(collectionId);
+      const tx = api.tx.nft.setPublicAccessMode(collectionId, 'WhiteList');
+      await expect(submitTransactionExpectFailAsync(Alice, tx)).to.be.rejected;
+    });
+  });
+
+  it('Re-set the list mode already set in quantity', async () => {
+    await usingApi(async () => {
+      const collectionId: number = await createCollectionExpectSuccess();
+      await enableWhiteListExpectSuccess(Alice, collectionId);
+      await enableWhiteListExpectSuccess(Alice, collectionId);
+    });
+  });
+
+  it('Execute method not on behalf of the collection owner', async () => {
+    await usingApi(async (api: ApiPromise) => {
+      // tslint:disable-next-line: no-bitwise
+      const collectionId = await createCollectionExpectSuccess();
+      const tx = api.tx.nft.setPublicAccessMode(collectionId, 'WhiteList');
+      await expect(submitTransactionExpectFailAsync(Bob, tx)).to.be.rejected;
+    });
+  });
+});
modifiedtests/src/setSchemaVersion.test.tsdiffbeforeafterboth
--- a/tests/src/setSchemaVersion.test.ts
+++ b/tests/src/setSchemaVersion.test.ts
@@ -103,7 +103,7 @@
   it('execute setSchemaVersion with not correct schema version', async () => {
     await usingApi(async (api: ApiPromise) => {
       const consoleError = console.error;
-      console.error = (message: string) => {};
+      console.error = () => {};
       try {
         tx = api.tx.nft.setSchemaVersion(collectionIdForTesting, 'Test');
         await submitTransactionAsync(alice, tx);
modifiedtests/src/setVariableMetaData.test.tsdiffbeforeafterboth
--- a/tests/src/setVariableMetaData.test.ts
+++ b/tests/src/setVariableMetaData.test.ts
@@ -49,7 +49,7 @@
 });
 
 describe('Negative Integration Test setVariableMetaData', () => {
-  let data = [1];
+  const data = [1];
 
   let alice: IKeyringPair;
   let bob: IKeyringPair;
@@ -69,7 +69,7 @@
 
   it('fails on not existing collection id', async () => {
     await usingApi(async api => {
-      let nonExistingCollectionId = await findNotExistingCollection(api);
+      const nonExistingCollectionId = await findNotExistingCollection(api);
       await setVariableMetaDataExpectFailure(alice, nonExistingCollectionId, 1, data);
     });
   });
modifiedtests/src/setVariableOnChainSchema.test.tsdiffbeforeafterboth
--- a/tests/src/setVariableOnChainSchema.test.ts
+++ b/tests/src/setVariableOnChainSchema.test.ts
@@ -23,7 +23,7 @@
 let largeSchema: any;
 
 before(async () => {
-  await usingApi(async (api) => {
+  await usingApi(async () => {
     const keyring = new Keyring({ type: 'sr25519' });
     Alice = keyring.addFromUri('//Alice');
     Bob = keyring.addFromUri('//Bob');
@@ -35,7 +35,7 @@
 describe('Integration Test ext. setVariableOnChainSchema()', () => {
 
   it('Run extrinsic with parameters of the collection id, set the scheme', async () => {
-      await usingApi(async (api) => {
+    await usingApi(async (api) => {
       const collectionId = await createCollectionExpectSuccess();
       const collection: any = (await api.query.nft.collectionById(collectionId)).toJSON();
       expect(collection.Owner).to.be.deep.eq(normalizeAccountId(Alice.address));
@@ -45,12 +45,12 @@
   });
 
   it('Checking collection data using the setVariableOnChainSchema parameter', async () => {
-      await usingApi(async (api) => {
-        const collectionId = await createCollectionExpectSuccess();
-        const setSchema = api.tx.nft.setVariableOnChainSchema(collectionId, Schema);
-        await submitTransactionAsync(Alice, setSchema);
-        const collection: any = (await api.query.nft.collectionById(collectionId)).toJSON();
-        expect(collection.VariableOnChainSchema.toString()).to.be.eq(Schema);
+    await usingApi(async (api) => {
+      const collectionId = await createCollectionExpectSuccess();
+      const setSchema = api.tx.nft.setVariableOnChainSchema(collectionId, Schema);
+      await submitTransactionAsync(Alice, setSchema);
+      const collection: any = (await api.query.nft.collectionById(collectionId)).toJSON();
+      expect(collection.VariableOnChainSchema.toString()).to.be.eq(Schema);
 
     });
   });
modifiedtests/src/substrate/privateKey.tsdiffbeforeafterboth
--- a/tests/src/substrate/privateKey.ts
+++ b/tests/src/substrate/privateKey.ts
@@ -3,8 +3,8 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import { Keyring } from "@polkadot/api";
-import { IKeyringPair } from "@polkadot/types/types";
+import { Keyring } from '@polkadot/api';
+import { IKeyringPair } from '@polkadot/types/types';
 
 export default function privateKey(account: string): IKeyringPair {
   const keyring = new Keyring({ type: 'sr25519' });
modifiedtests/src/substrate/promisify-substrate.tsdiffbeforeafterboth
--- a/tests/src/substrate/promisify-substrate.ts
+++ b/tests/src/substrate/promisify-substrate.ts
@@ -3,7 +3,7 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import { ApiPromise } from "@polkadot/api";
+import { ApiPromise } from '@polkadot/api';
 
 type PromiseType<T> = T extends PromiseLike<infer TInner> ? TInner : T;
 
modifiedtests/src/substrate/substrate-api.tsdiffbeforeafterboth
--- a/tests/src/substrate/substrate-api.ts
+++ b/tests/src/substrate/substrate-api.ts
@@ -3,32 +3,39 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import { WsProvider, ApiPromise } from "@polkadot/api";
+import { WsProvider, ApiPromise } from '@polkadot/api';
 import { EventRecord } from '@polkadot/types/interfaces/system/types';
 import { ExtrinsicStatus } from '@polkadot/types/interfaces/author/types';
-import { IKeyringPair } from "@polkadot/types/types";
+import { IKeyringPair } from '@polkadot/types/types';
 
-import config from "../config";
-import promisifySubstrate from "./promisify-substrate";
-import { ApiOptions, SubmittableExtrinsic, ApiTypes } from "@polkadot/api/types";
-import rtt from "../../../runtime_types.json";
+import config from '../config';
+import promisifySubstrate from './promisify-substrate';
+import { ApiOptions, SubmittableExtrinsic, ApiTypes } from '@polkadot/api/types';
+import rtt from '../../../runtime_types.json';
 
 function defaultApiOptions(): ApiOptions {
   const wsProvider = new WsProvider(config.substrateUrl);
-  return { provider: wsProvider, types: rtt };
+  return {
+    provider: wsProvider, types: rtt, signedExtensions: {
+      ContractHelpers: {
+        extrinsic: {},
+        payload: {},
+      },
+    },
+  };
 }
 
 export default async function usingApi<T = void>(action: (api: ApiPromise) => Promise<T>, settings: ApiOptions | undefined = undefined): Promise<T> {
   settings = settings || defaultApiOptions();
-  let api: ApiPromise = new ApiPromise(settings);
+  const api: ApiPromise = new ApiPromise(settings);
   let result: T = null as unknown as T;
 
   // TODO: Remove, this is temporary: Filter unneeded API output 
   // (Jaco promised it will be removed in the next version)
   const consoleErr = console.error;
   console.error = (message: string) => {
-    if (message.includes("StorageChangeSet:: WebSocket is not connected") || message.includes("2021-")) {}
-    else consoleErr(message);
+    if (!message.includes('StorageChangeSet:: WebSocket is not connected') || message.includes('2021-'))
+      consoleErr(message);
   };
 
   try {
@@ -72,6 +79,7 @@
 
 export function
 submitTransactionAsync(sender: IKeyringPair, transaction: SubmittableExtrinsic<ApiTypes>): Promise<EventRecord[]> {
+  /* eslint no-async-promise-executor: "off" */
   return new Promise(async (resolve, reject) => {
     try {
       await transaction.signAndSend(sender, ({ events = [], status }) => {
@@ -97,6 +105,7 @@
   console.error = () => {};
   console.log = () => {};
 
+  /* eslint no-async-promise-executor: "off" */
   return new Promise<EventRecord[]>(async function(res, rej) {
     const resolve = (rec: EventRecord[]) => {
       setTimeout(() => {
modifiedtests/src/substrate/wait-new-blocks.tsdiffbeforeafterboth
--- a/tests/src/substrate/wait-new-blocks.ts
+++ b/tests/src/substrate/wait-new-blocks.ts
@@ -3,15 +3,16 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import { ApiPromise } from "@polkadot/api";
+import { ApiPromise } from '@polkadot/api';
 
-export default function waitNewBlocks(api: ApiPromise, blocksCount: number = 1): Promise<void> {
-  const promise = new Promise<void>(async (resolve, reject) => {
+/* eslint no-async-promise-executor: "off" */
+export default function waitNewBlocks(api: ApiPromise, blocksCount = 1): Promise<void> {
+  const promise = new Promise<void>(async (resolve) => {
     
-    const unsubscribe = await api.rpc.chain.subscribeNewHeads(head => {
-      if(blocksCount > 0) {
+    const unsubscribe = await api.rpc.chain.subscribeNewHeads(() => {
+      if (blocksCount > 0) {
         blocksCount--;
-      }else {
+      } else {
         unsubscribe();
         resolve();
       }
modifiedtests/src/toggleContractWhiteList.test.tsdiffbeforeafterboth
--- a/tests/src/toggleContractWhiteList.test.ts
+++ b/tests/src/toggleContractWhiteList.test.ts
@@ -3,17 +3,17 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import chai from "chai";
+import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from "./substrate/substrate-api";
-import privateKey from "./substrate/privateKey";
+import usingApi, { submitTransactionAsync, submitTransactionExpectFailAsync } from './substrate/substrate-api';
+import privateKey from './substrate/privateKey';
 import {
   deployFlipper,
-  getFlipValue
-} from "./util/contracthelpers";
+  getFlipValue,
+} from './util/contracthelpers';
 import {
-  getGenericResult
-} from "./util/helpers"
+  getGenericResult,
+} from './util/helpers';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
@@ -23,7 +23,7 @@
 
 describe('Integration Test toggleContractWhiteList', () => {
 
-  it(`Enable white list contract mode`, async () => {
+  it('Enable white list contract mode', async () => {
     await usingApi(async api => {
       const [contract, deployer] = await deployFlipper(api);
 
@@ -38,9 +38,9 @@
     });
   });
 
-  it(`Only whitelisted account can call contract`, async () => {
+  it('Only whitelisted account can call contract', async () => {
     await usingApi(async api => {
-      const bob = privateKey("//Bob");
+      const bob = privateKey('//Bob');
 
       const [contract, deployer] = await deployFlipper(api);
 
@@ -48,59 +48,59 @@
       const flip = contract.tx.flip(value, gasLimit);
       await submitTransactionAsync(bob, flip);
       const flipValueAfter = await getFlipValue(contract,deployer);
-      expect(flipValueAfter).to.be.eq(!flipValueBefore, `Anyone can call new contract.`);
+      expect(flipValueAfter).to.be.eq(!flipValueBefore, 'Anyone can call new contract.');
 
       const deployerCanFlip = async () => {
-        let flipValueBefore = await getFlipValue(contract, deployer);
+        const flipValueBefore = await getFlipValue(contract, deployer);
         const deployerFlip = contract.tx.flip(value, gasLimit);
         await submitTransactionAsync(deployer, deployerFlip);
         const aliceFlip1Response = await getFlipValue(contract, deployer);
-        expect(aliceFlip1Response).to.be.eq(!flipValueBefore, `Deployer always can flip.`);
+        expect(aliceFlip1Response).to.be.eq(!flipValueBefore, 'Deployer always can flip.');
       };
       await deployerCanFlip();
 
       flipValueBefore = await getFlipValue(contract, deployer);
       const enableWhiteListTx = api.tx.nft.toggleContractWhiteList(contract.address, true);
-      const enableResult = await submitTransactionAsync(deployer, enableWhiteListTx);
+      await submitTransactionAsync(deployer, enableWhiteListTx);
       const flipWithEnabledWhiteList = contract.tx.flip(value, gasLimit);
       await expect(submitTransactionExpectFailAsync(bob, flipWithEnabledWhiteList)).to.be.rejected;
       const flipValueAfterEnableWhiteList = await getFlipValue(contract, deployer);
-      expect(flipValueAfterEnableWhiteList).to.be.eq(flipValueBefore, `Enabling whitelist doesn't make it possible to call contract for everyone.`);
+      expect(flipValueAfterEnableWhiteList).to.be.eq(flipValueBefore, 'Enabling whitelist doesn\'t make it possible to call contract for everyone.');
 
       await deployerCanFlip();
 
       flipValueBefore = await getFlipValue(contract, deployer);
       const addBobToWhiteListTx = api.tx.nft.addToContractWhiteList(contract.address, bob.address);
-      const addBobResult = await submitTransactionAsync(deployer, addBobToWhiteListTx);
+      await submitTransactionAsync(deployer, addBobToWhiteListTx);
       const flipWithWhitelistedBob = contract.tx.flip(value, gasLimit);
       await submitTransactionAsync(bob, flipWithWhitelistedBob);
       const flipAfterWhiteListed = await getFlipValue(contract,deployer);
-      expect(flipAfterWhiteListed).to.be.eq(!flipValueBefore, `Bob was whitelisted, now he can flip.`);
+      expect(flipAfterWhiteListed).to.be.eq(!flipValueBefore, 'Bob was whitelisted, now he can flip.');
 
       await deployerCanFlip();
 
       flipValueBefore = await getFlipValue(contract, deployer);
       const removeBobFromWhiteListTx = api.tx.nft.removeFromContractWhiteList(contract.address, bob.address);
-      const removeBobResult = await submitTransactionAsync(deployer, removeBobFromWhiteListTx);
+      await submitTransactionAsync(deployer, removeBobFromWhiteListTx);
       const bobRemoved = contract.tx.flip(value, gasLimit);
       await expect(submitTransactionExpectFailAsync(bob, bobRemoved)).to.be.rejected;
       const afterBobRemoved = await getFlipValue(contract, deployer);
-      expect(afterBobRemoved).to.be.eq(flipValueBefore, `Bob can't call contract, now when he is removeed from white list.`);
+      expect(afterBobRemoved).to.be.eq(flipValueBefore, 'Bob can\'t call contract, now when he is removeed from white list.');
 
       await deployerCanFlip();
 
       flipValueBefore = await getFlipValue(contract, deployer);
       const disableWhiteListTx = api.tx.nft.toggleContractWhiteList(contract.address, false);
-      const disableWhiteListResult = await submitTransactionAsync(deployer, disableWhiteListTx);
+      await submitTransactionAsync(deployer, disableWhiteListTx);
       const whiteListDisabledFlip = contract.tx.flip(value, gasLimit);
       await submitTransactionAsync(bob, whiteListDisabledFlip);
       const afterWhiteListDisabled = await getFlipValue(contract,deployer);
-      expect(afterWhiteListDisabled).to.be.eq(!flipValueBefore, `Anyone can call contract with disabled whitelist.`);
+      expect(afterWhiteListDisabled).to.be.eq(!flipValueBefore, 'Anyone can call contract with disabled whitelist.');
 
     });
   });
 
-  it(`Enabling white list repeatedly should not produce errors`, async () => {
+  it('Enabling white list repeatedly should not produce errors', async () => {
     await usingApi(async api => {
       const [contract, deployer] = await deployFlipper(api);
 
@@ -123,10 +123,10 @@
 
 describe('Negative Integration Test toggleContractWhiteList', () => {
 
-  it(`Enable white list for a non-contract`, async () => {
+  it('Enable white list for a non-contract', async () => {
     await usingApi(async api => {
-      const alice = privateKey("//Alice");
-      const bobGuineaPig = privateKey("//Bob");
+      const alice = privateKey('//Alice');
+      const bobGuineaPig = privateKey('//Bob');
 
       const enabledBefore = (await api.query.nft.contractWhiteListEnabled(bobGuineaPig.address)).toJSON();
       const enableWhiteListTx = api.tx.nft.toggleContractWhiteList(bobGuineaPig.address, true);
@@ -138,10 +138,10 @@
     });
   });
 
-  it(`Enable white list using a non-owner address`, async () => {
+  it('Enable white list using a non-owner address', async () => {
     await usingApi(async api => {
-      const bob = privateKey("//Bob");
-      const [contract, deployer] = await deployFlipper(api);
+      const bob = privateKey('//Bob');
+      const [contract] = await deployFlipper(api);
 
       const enabledBefore = (await api.query.nft.contractWhiteListEnabled(contract.address)).toJSON();
       const enableWhiteListTx = api.tx.nft.toggleContractWhiteList(contract.address, true);
modifiedtests/src/transfer.nload.tsdiffbeforeafterboth
--- a/tests/src/transfer.nload.ts
+++ b/tests/src/transfer.nload.ts
@@ -1,9 +1,14 @@
-import { ApiPromise } from "@polkadot/api";
+//
+// This file is subject to the terms and conditions defined in
+// file 'LICENSE', which is part of this source code package.
+//
+
+import { ApiPromise } from '@polkadot/api';
 import { IKeyringPair } from '@polkadot/types/types';
-import privateKey from "./substrate/privateKey";
-import usingApi, { submitTransactionAsync } from "./substrate/substrate-api";
-import waitNewBlocks from "./substrate/wait-new-blocks";
-import { findUnusedAddresses } from "./util/helpers";
+import privateKey from './substrate/privateKey';
+import usingApi, { submitTransactionAsync } from './substrate/substrate-api';
+import waitNewBlocks from './substrate/wait-new-blocks';
+import { findUnusedAddresses } from './util/helpers';
 import * as cluster from 'cluster';
 import os from 'os';
 
@@ -12,102 +17,102 @@
 
 let counters: { [key: string]: number } = {};
 function increaseCounter(name: string, amount: number) {
-    if (!counters[name]) {
-        counters[name] = 0;
-    }
-    counters[name] += amount;
+  if (!counters[name]) {
+    counters[name] = 0;
+  }
+  counters[name] += amount;
 }
 function flushCounterToMaster() {
-    if (Object.keys(counters).length === 0) {
-        return;
-    }
+  if (Object.keys(counters).length === 0) {
+    return;
+  }
     process.send!(counters);
     counters = {};
 }
 
 async function distributeBalance(source: IKeyringPair, api: ApiPromise, totalAmount: bigint, stages: number) {
-    let accounts = [source];
-    // we don't need source in output array
-    const failedAccounts = [0];
+  const accounts = [source];
+  // we don't need source in output array
+  const failedAccounts = [0];
 
-    const finalUserAmount = 2 ** stages - 1;
-    accounts.push(...await findUnusedAddresses(api, finalUserAmount));
-    // findUnusedAddresses produces at least 1 request per user
-    increaseCounter('requests', finalUserAmount);
+  const finalUserAmount = 2 ** stages - 1;
+  accounts.push(...await findUnusedAddresses(api, finalUserAmount));
+  // findUnusedAddresses produces at least 1 request per user
+  increaseCounter('requests', finalUserAmount);
 
-    for (let stage = 0; stage < stages; stage++) {
-        let usersWithBalance = 2 ** stage;
-        let amount = totalAmount / (2n ** BigInt(stage)) - FEE * BigInt(stage);
-        // console.log(`Stage ${stage}/${stages}, ${usersWithBalance} => ${usersWithBalance * 2} = ${amount}`);
-        let txs = [];
-        for (let i = 0; i < usersWithBalance; i++) {
-            let newUser = accounts[i + usersWithBalance];
-            // console.log(`${accounts[i].address} => ${newUser.address} = ${amountToSplit}`);
-            const tx = api.tx.balances.transfer(newUser.address, amount);
-            txs.push(submitTransactionAsync(accounts[i], tx).catch(e => {
-                failedAccounts.push(i + usersWithBalance);
-                increaseCounter('txFailed', 1);
-            }));
-            increaseCounter('tx', 1);
-        }
-        await Promise.all(txs);
+  for (let stage = 0; stage < stages; stage++) {
+    const usersWithBalance = 2 ** stage;
+    const amount = totalAmount / (2n ** BigInt(stage)) - FEE * BigInt(stage);
+    // console.log(`Stage ${stage}/${stages}, ${usersWithBalance} => ${usersWithBalance * 2} = ${amount}`);
+    const txs = [];
+    for (let i = 0; i < usersWithBalance; i++) {
+      const newUser = accounts[i + usersWithBalance];
+      // console.log(`${accounts[i].address} => ${newUser.address} = ${amountToSplit}`);
+      const tx = api.tx.balances.transfer(newUser.address, amount);
+      txs.push(submitTransactionAsync(accounts[i], tx).catch(() => {
+        failedAccounts.push(i + usersWithBalance);
+        increaseCounter('txFailed', 1);
+      }));
+      increaseCounter('tx', 1);
     }
+    await Promise.all(txs);
+  }
 
-    for (let account of failedAccounts.reverse()) {
-        accounts.splice(account, 1);
-    }
-    return accounts;
+  for (const account of failedAccounts.reverse()) {
+    accounts.splice(account, 1);
+  }
+  return accounts;
 }
 
 if (cluster.isMaster) {
-    let testDone = false;
-    usingApi(async (api) => {
-        let prevCounters: { [key: string]: number } = {};
-        while (!testDone) {
-            for (let name in counters) {
-                if (!(name in prevCounters)) {
-                    prevCounters[name] = 0;
-                }
-                if(counters[name] === prevCounters[name]) {
-                    continue;
-                }
-                console.log(`${name.padEnd(15)} = ${counters[name] - prevCounters[name]}`);
-                prevCounters[name] = counters[name];
-            }
-            await waitNewBlocks(api, 1);
+  let testDone = false;
+  usingApi(async (api) => {
+    const prevCounters: { [key: string]: number } = {};
+    while (!testDone) {
+      for (const name in counters) {
+        if (!(name in prevCounters)) {
+          prevCounters[name] = 0;
+        }
+        if(counters[name] === prevCounters[name]) {
+          continue;
         }
-    });
-    let waiting: Promise<void>[] = [];
-    console.log(`Starting ${os.cpus().length} workers`);
-    usingApi(async (api) => {
-        const alice = privateKey('//Alice');
-        for (let id in os.cpus()) {
-            const WORKER_NAME = `//LoadWorker${id}_${Date.now()}`;
-            const workerAccount = privateKey(WORKER_NAME);
-            const tx = api.tx.balances.transfer(workerAccount.address, 400n * 10n ** 23n);
-            await submitTransactionAsync(alice, tx);
+        console.log(`${name.padEnd(15)} = ${counters[name] - prevCounters[name]}`);
+        prevCounters[name] = counters[name];
+      }
+      await waitNewBlocks(api, 1);
+    }
+  });
+  const waiting: Promise<void>[] = [];
+  console.log(`Starting ${os.cpus().length} workers`);
+  usingApi(async (api) => {
+    const alice = privateKey('//Alice');
+    for (const id in os.cpus()) {
+      const WORKER_NAME = `//LoadWorker${id}_${Date.now()}`;
+      const workerAccount = privateKey(WORKER_NAME);
+      const tx = api.tx.balances.transfer(workerAccount.address, 400n * 10n ** 23n);
+      await submitTransactionAsync(alice, tx);
 
-            let worker = cluster.fork({
-                WORKER_NAME,
-                STAGES: id + 2
-            });
-            worker.on('message', msg => {
-                for (let key in msg) {
-                    increaseCounter(key, msg[key]);
-                }
-            });
-            waiting.push(new Promise(res => worker.on('exit', res)));
+      const worker = cluster.fork({
+        WORKER_NAME,
+        STAGES: id + 2,
+      });
+      worker.on('message', msg => {
+        for (const key in msg) {
+          increaseCounter(key, msg[key]);
         }
-        await Promise.all(waiting);
-        testDone = true;
-    })
+      });
+      waiting.push(new Promise(res => worker.on('exit', res)));
+    }
+    await Promise.all(waiting);
+    testDone = true;
+  });
 } else {
-    increaseCounter('startedWorkers', 1);
-    usingApi(async (api) => {
-        await distributeBalance(privateKey(process.env.WORKER_NAME as string), api, 400n * 10n ** 22n, 10);
-    });
-    const interval = setInterval(() => {
-        flushCounterToMaster();
-    }, 100);
-    interval.unref();
+  increaseCounter('startedWorkers', 1);
+  usingApi(async (api) => {
+    await distributeBalance(privateKey(process.env.WORKER_NAME as string), api, 400n * 10n ** 22n, 10);
+  });
+  const interval = setInterval(() => {
+    flushCounterToMaster();
+  }, 100);
+  interval.unref();
 }
\ No newline at end of file
modifiedtests/src/transfer.test.tsdiffbeforeafterboth
--- a/tests/src/transfer.test.ts
+++ b/tests/src/transfer.test.ts
@@ -64,7 +64,7 @@
   });
 
   it('User can transfer owned token', async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       const Alice = privateKey('//Alice');
       const Bob = privateKey('//Bob');
       // nft
@@ -77,17 +77,23 @@
       await transferExpectSuccess(fungibleCollectionId, newFungibleTokenId, Alice, Bob, 1, 'Fungible');
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
-      await transferExpectSuccess(reFungibleCollectionId,
-        newReFungibleTokenId, Alice, Bob, 100, 'ReFungible');
+      await transferExpectSuccess(
+        reFungibleCollectionId,
+        newReFungibleTokenId,
+        Alice,
+        Bob,
+        100,
+        'ReFungible',
+      );
     });
   });
 });
 
 describe('Negative Integration Test Transfer(recipient, collection_id, item_id, value)', () => {
   before(async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       Alice = privateKey('//Alice');
       Bob = privateKey('//Bob');
       Charlie = privateKey('//Charlie');
@@ -119,11 +125,17 @@
     await transferExpectFail(fungibleCollectionId, newFungibleTokenId, Alice, Bob, 1, 'Fungible');
     // reFungible
     const reFungibleCollectionId = await
-      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+    createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
     await destroyCollectionExpectSuccess(reFungibleCollectionId);
-    await transferExpectFail(reFungibleCollectionId,
-      newReFungibleTokenId, Alice, Bob, 1, 'ReFungible');
+    await transferExpectFail(
+      reFungibleCollectionId,
+      newReFungibleTokenId,
+      Alice,
+      Bob,
+      1,
+      'ReFungible',
+    );
   });
   it('Transfer with not existed item_id', async () => {
     // nft
@@ -134,9 +146,15 @@
     await transferExpectFail(fungibleCollectionId, 2, Alice, Bob, 1, 'Fungible');
     // reFungible
     const reFungibleCollectionId = await
-      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
-    await transferExpectFail(reFungibleCollectionId,
-      2, Alice, Bob, 1, 'ReFungible');
+    createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+    await transferExpectFail(
+      reFungibleCollectionId,
+      2,
+      Alice,
+      Bob,
+      1,
+      'ReFungible',
+    );
   });
   it('Transfer with deleted item_id', async () => {
     // nft
@@ -151,11 +169,17 @@
     await transferExpectFail(fungibleCollectionId, newFungibleTokenId, Alice, Bob, 1, 'Fungible');
     // reFungible
     const reFungibleCollectionId = await
-      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+    createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
     await burnItemExpectSuccess(Alice, reFungibleCollectionId, newReFungibleTokenId, 1);
-    await transferExpectFail(reFungibleCollectionId,
-      newReFungibleTokenId, Alice, Bob, 1, 'ReFungible');
+    await transferExpectFail(
+      reFungibleCollectionId,
+      newReFungibleTokenId,
+      Alice,
+      Bob,
+      1,
+      'ReFungible',
+    );
   });
   it('Transfer with recipient that is not owner', async () => {
     // nft
@@ -168,9 +192,15 @@
     await transferExpectFail(fungibleCollectionId, newFungibleTokenId, Charlie, Bob, 1, 'Fungible');
     // reFungible
     const reFungibleCollectionId = await
-      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+    createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
     const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
-    await transferExpectFail(reFungibleCollectionId,
-      newReFungibleTokenId, Charlie, Bob, 1, 'ReFungible');
+    await transferExpectFail(
+      reFungibleCollectionId,
+      newReFungibleTokenId,
+      Charlie,
+      Bob,
+      1,
+      'ReFungible',
+    );
   });
 });
modifiedtests/src/transferFrom.test.tsdiffbeforeafterboth
--- a/tests/src/transferFrom.test.ts
+++ b/tests/src/transferFrom.test.ts
@@ -14,7 +14,6 @@
   createCollectionExpectSuccess,
   createFungibleItemExpectSuccess,
   createItemExpectSuccess,
-  destroyCollectionExpectSuccess,
   getAllowance,
   transferFromExpectFail,
   transferFromExpectSuccess,
@@ -31,7 +30,7 @@
   let Charlie: IKeyringPair;
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       Alice = privateKey('//Alice');
       Bob = privateKey('//Bob');
       Charlie = privateKey('//Charlie');
@@ -39,7 +38,7 @@
   });
 
   it('Execute the extrinsic and check nftItemList - owner of token', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -52,13 +51,21 @@
       const newFungibleTokenId = await createItemExpectSuccess(Alice, fungibleCollectionId, 'Fungible');
       await approveExpectSuccess(fungibleCollectionId, newFungibleTokenId, Alice, Bob);
       await transferFromExpectSuccess(fungibleCollectionId, newFungibleTokenId, Bob, Alice, Charlie, 1, 'Fungible');
+
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob, 100);
-      await transferFromExpectSuccess(reFungibleCollectionId,
-        newReFungibleTokenId, Bob, Alice, Charlie, 100, 'ReFungible');
+      await transferFromExpectSuccess(
+        reFungibleCollectionId,
+        newReFungibleTokenId,
+        Bob,
+        Alice,
+        Charlie,
+        100,
+        'ReFungible',
+      );
     });
   });
 
@@ -92,7 +99,7 @@
   let Charlie: IKeyringPair;
 
   before(async () => {
-    await usingApi(async (api) => {
+    await usingApi(async () => {
       Alice = privateKey('//Alice');
       Bob = privateKey('//Bob');
       Charlie = privateKey('//Charlie');
@@ -139,7 +146,7 @@
   }); */
 
   it('transferFrom for not approved address', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -152,15 +159,21 @@
       await transferFromExpectFail(fungibleCollectionId, newFungibleTokenId, Bob, Alice, Charlie, 1);
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
-      await transferFromExpectFail(reFungibleCollectionId,
-        newReFungibleTokenId, Bob, Alice, Charlie, 1);
+      await transferFromExpectFail(
+        reFungibleCollectionId,
+        newReFungibleTokenId,
+        Bob,
+        Alice,
+        Charlie,
+        1,
+      );
     });
   });
 
   it('transferFrom incorrect token count', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -175,16 +188,22 @@
       await transferFromExpectFail(fungibleCollectionId, newFungibleTokenId, Bob, Alice, Charlie, 2);
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob);
-      await transferFromExpectFail(reFungibleCollectionId,
-        newReFungibleTokenId, Bob, Alice, Charlie, 2);
+      await transferFromExpectFail(
+        reFungibleCollectionId,
+        newReFungibleTokenId,
+        Bob,
+        Alice,
+        Charlie,
+        2,
+      );
     });
   });
 
   it('execute transferFrom from account that is not owner of collection', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       const Dave = privateKey('//Dave');
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
@@ -211,7 +230,7 @@
       }
       // reFungible
       const reFungibleCollectionId = await
-        createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
+      createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       try {
         await approveExpectFail(reFungibleCollectionId, newReFungibleTokenId, Dave, Bob);
@@ -223,7 +242,7 @@
     });
   });
   it( 'transferFrom burnt token before approve NFT', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -233,7 +252,7 @@
     });
   });
   it( 'transferFrom burnt token before approve Fungible', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       const fungibleCollectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
       const newFungibleTokenId = await createItemExpectSuccess(Alice, fungibleCollectionId, 'Fungible');
       await burnItemExpectSuccess(Alice, fungibleCollectionId, 1, 10);
@@ -243,7 +262,7 @@
     });
   }); 
   it( 'transferFrom burnt token before approve ReFungible', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       const reFungibleCollectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await burnItemExpectSuccess(Alice, reFungibleCollectionId, newReFungibleTokenId, 1);
@@ -254,7 +273,7 @@
   });
   
   it( 'transferFrom burnt token after approve NFT', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       // nft
       const nftCollectionId = await createCollectionExpectSuccess();
       const newNftTokenId = await createItemExpectSuccess(Alice, nftCollectionId, 'NFT');
@@ -264,7 +283,7 @@
     });
   });
   it( 'transferFrom burnt token after approve Fungible', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       const fungibleCollectionId = await createCollectionExpectSuccess({mode: {type: 'Fungible', decimalPoints: 0}});
       const newFungibleTokenId = await createItemExpectSuccess(Alice, fungibleCollectionId, 'Fungible');
       await approveExpectSuccess(fungibleCollectionId, newFungibleTokenId, Alice, Bob);
@@ -274,7 +293,7 @@
     });
   }); 
   it( 'transferFrom burnt token after approve ReFungible', async () => {
-    await usingApi(async (api: ApiPromise) => {
+    await usingApi(async () => {
       const reFungibleCollectionId = await createCollectionExpectSuccess({mode: {type: 'ReFungible'}});
       const newReFungibleTokenId = await createItemExpectSuccess(Alice, reFungibleCollectionId, 'ReFungible');
       await approveExpectSuccess(reFungibleCollectionId, newReFungibleTokenId, Alice, Bob);
modifiedtests/src/util/contracthelpers.tsdiffbeforeafterboth
--- a/tests/src/util/contracthelpers.ts
+++ b/tests/src/util/contracthelpers.ts
@@ -3,13 +3,13 @@
 // file 'LICENSE', which is part of this source code package.
 //
 
-import chai from "chai";
+import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import { submitTransactionAsync, submitTransactionExpectFailAsync } from "../substrate/substrate-api";
-import fs from "fs";
-import { Abi, BlueprintPromise as Blueprint, CodePromise, ContractPromise as Contract } from "@polkadot/api-contract";
-import { IKeyringPair } from "@polkadot/types/types";
-import { ApiPromise, Keyring } from "@polkadot/api";
+import { submitTransactionAsync, submitTransactionExpectFailAsync } from '../substrate/substrate-api';
+import fs from 'fs';
+import { Abi, CodePromise, ContractPromise as Contract } from '@polkadot/api-contract';
+import { IKeyringPair } from '@polkadot/types/types';
+import { ApiPromise, Keyring } from '@polkadot/api';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
@@ -20,8 +20,9 @@
 const gasLimit = '200000000000';
 const endowment = '100000000000000000';
 
-function deployContract(alice: IKeyringPair, code: CodePromise, constructor: string = 'default', ...args: any[]): Promise<Contract> {
-  return new Promise<Contract>(async (resolve, reject) => {
+/* eslint no-async-promise-executor: "off" */
+function deployContract(alice: IKeyringPair, code: CodePromise, constructor = 'default', ...args: any[]): Promise<Contract> {
+  return new Promise<Contract>(async (resolve) => {
     const unsub = await (code as any)
       .tx[constructor]({value: endowment, gasLimit}, ...args)
       .signAndSend(alice, (result: any) => {
@@ -30,7 +31,7 @@
           resolve((result as any).contract);
           unsub();
         }
-      })
+      });
   });
 }
 
@@ -40,7 +41,7 @@
 
   // Transfer balance to it
   const keyring = new Keyring({ type: 'sr25519' });
-  const alice = keyring.addFromUri(`//Alice`);
+  const alice = keyring.addFromUri('//Alice');
   let amount = new BigNumber(endowment);
   amount = amount.plus(100e15);
   const tx = api.tx.balances.transfer(deployer.address, amount.toFixed());
@@ -71,7 +72,7 @@
   const result = await contract.query.get(deployer.address, value, gasLimit);
 
   if(!result.result.isOk) {
-    throw `Failed to get flipper value`;
+    throw 'Failed to get flipper value';
   }
   return (result.result.asOk.data[0] == 0x00) ? false : true;
 }
@@ -87,19 +88,6 @@
 export async function toggleFlipValueExpectFailure(sender: IKeyringPair, contract: Contract) {
   const tx = contract.tx.flip(value, gasLimit);
   await expect(submitTransactionExpectFailAsync(sender, tx)).to.be.rejected;
-}
-
-function instantiateTransferContract(alice: IKeyringPair, blueprint: Blueprint) : Promise<any> {
-  return new Promise<any>(async (resolve, reject) => {
-    const unsub = await blueprint.tx
-    .default(endowment, gasLimit)
-    .signAndSend(alice, (result) => {
-      if (result.status.isInBlock || result.status.isFinalized) {
-        unsub();
-        resolve(result);
-      }
-    });    
-  });
 }
 
 export async function deployTransferContract(api: ApiPromise): Promise<[Contract, IKeyringPair]> {
modifiedtests/src/util/helpers.tsdiffbeforeafterboth
--- a/tests/src/util/helpers.ts
+++ b/tests/src/util/helpers.ts
@@ -4,22 +4,18 @@
 //
 
 import { ApiPromise, Keyring } from '@polkadot/api';
-import { Enum, Struct } from '@polkadot/types/codec';
-import type { AccountId, BlockNumber, Call, EventRecord } from '@polkadot/types/interfaces';
-import { u128 } from '@polkadot/types/primitive';
+import type { AccountId, EventRecord } from '@polkadot/types/interfaces';
 import { IKeyringPair } from '@polkadot/types/types';
 import { evmToAddress } from '@polkadot/util-crypto';
 import { BigNumber } from 'bignumber.js';
 import BN from 'bn.js';
 import chai from 'chai';
 import chaiAsPromised from 'chai-as-promised';
-import { alicesPublicKey, nullPublicKey } from '../accounts';
+import { alicesPublicKey } from '../accounts';
 import privateKey from '../substrate/privateKey';
 import { default as usingApi, submitTransactionAsync, submitTransactionExpectFailAsync } from '../substrate/substrate-api';
 import { ICollectionInterface } from '../types';
 import { hexToStr, strToUTF16, utf16ToStr } from './util';
-import { Compact, Option, Raw, Vec } from '@polkadot/types/codec';
-// import { AccountId, AccountIdOf, AccountIndex, Address, AssetId, Balance, BalanceOf, Block, BlockNumber, Call, ChangesTrieConfiguration, Consensus, ConsensusEngineId, Digest, DigestItem, DispatchClass, DispatchInfo, DispatchInfoTo190, EcdsaSignature, Ed25519Signature, Extrinsic, ExtrinsicEra, ExtrinsicPayload, ExtrinsicPayloadUnknown, ExtrinsicPayloadV1, ExtrinsicPayloadV2, ExtrinsicPayloadV3, ExtrinsicPayloadV4, ExtrinsicSignatureV1, ExtrinsicSignatureV2, ExtrinsicSignatureV3, ExtrinsicSignatureV4, ExtrinsicUnknown, ExtrinsicV1, ExtrinsicV2, ExtrinsicV3, ExtrinsicV4, Hash, Header, ImmortalEra, Index, Justification, KeyTypeId, KeyValue, LockIdentifier, LookupSource, LookupTarget, Moment, MortalEra, MultiSignature, Origin, Perbill, Percent, Permill, Perquintill, Phantom, PhantomData, PreRuntime, Seal, SealV0, Signature, SignedBlock, SignerPayload, Sr25519Signature, ValidatorId, Weight, WeightMultiplier } from '@polkadot/types/interfaces/runtime';
 
 chai.use(chaiAsPromised);
 const expect = chai.expect;
@@ -44,7 +40,7 @@
   }
 
   // AccountId
-  return {substrate: input.toString()}
+  return {substrate: input.toString()};
 }
 export function toSubstrateAddress(input: string | CrossAccountId | IKeyringPair): string {
   input = normalizeAccountId(input);
@@ -91,10 +87,6 @@
   Owner: number[];
   ConstData: number[];
   VariableData: number[];
-}
-
-interface IFungibleTokenDataType {
-  Value: BN;
 }
 
 interface IGetMessage {
@@ -110,9 +102,9 @@
 }
 
 export function nftEventMessage(events: EventRecord[]): IGetMessage {
-  let checkMsgNftMethod: string = '';
-  let checkMsgTrsMethod: string = '';
-  let checkMsgSysMethod: string = '';
+  let checkMsgNftMethod = '';
+  let checkMsgTrsMethod = '';
+  let checkMsgSysMethod = '';
   events.forEach(({ event: { method, section } }) => {
     if (section === 'nft') {
       checkMsgNftMethod = method;
@@ -134,7 +126,7 @@
   const result: GenericResult = {
     success: false,
   };
-  events.forEach(({ phase, event: { data, method, section } }) => {
+  events.forEach(({ event: { method } }) => {
     // console.log(`    ${phase}: ${section}.${method}:: ${data}`);
     if (method === 'ExtrinsicSuccess') {
       result.success = true;
@@ -147,8 +139,8 @@
 
 export function getCreateCollectionResult(events: EventRecord[]): CreateCollectionResult {
   let success = false;
-  let collectionId: number = 0;
-  events.forEach(({ phase, event: { data, method, section } }) => {
+  let collectionId = 0;
+  events.forEach(({ event: { data, method, section } }) => {
     // console.log(`    ${phase}: ${section}.${method}:: ${data}`);
     if (method == 'ExtrinsicSuccess') {
       success = true;
@@ -165,10 +157,10 @@
 
 export function getCreateItemResult(events: EventRecord[]): CreateItemResult {
   let success = false;
-  let collectionId: number = 0;
-  let itemId: number = 0;
+  let collectionId = 0;
+  let itemId = 0;
   let recipient;
-  events.forEach(({ phase, event: { data, method, section } }) => {
+  events.forEach(({ event: { data, method, section } }) => {
     // console.log(`    ${phase}: ${section}.${method}:: ${data}`);
     if (method == 'ExtrinsicSuccess') {
       success = true;
@@ -241,12 +233,12 @@
   mode: { type: 'NFT' },
   name: 'name',
   tokenPrefix: 'prefix',
-}
+};
 
 export async function createCollectionExpectSuccess(params: Partial<CreateCollectionParams> = {}): Promise<number> {
   const { name, description, mode, tokenPrefix } = { ...defaultCreateCollectionParams, ...params };
 
-  let collectionId: number = 0;
+  let collectionId = 0;
   await usingApi(async (api) => {
     // Get number of collections before the transaction
     const AcollectionCount = parseInt((await api.query.nft.createdCollectionCount()).toString(), 10);
@@ -357,9 +349,8 @@
 }
 
 function getDestroyResult(events: EventRecord[]): boolean {
-  let success: boolean = false;
-  events.forEach(({ phase, event: { data, method, section } }) => {
-    // console.log(`    ${phase}: ${section}.${method}:: ${data}`);
+  let success = false;
+  events.forEach(({ event: { method } }) => {
     if (method == 'ExtrinsicSuccess') {
       success = true;
     }
@@ -367,7 +358,7 @@
   return success;
 }
 
-export async function destroyCollectionExpectFailure(collectionId: number, senderSeed: string = '//Alice') {
+export async function destroyCollectionExpectFailure(collectionId: number, senderSeed = '//Alice') {
   await usingApi(async (api) => {
     // Run the DestroyCollection transaction
     const alicePrivateKey = privateKey(senderSeed);
@@ -376,7 +367,7 @@
   });
 }
 
-export async function destroyCollectionExpectSuccess(collectionId: number, senderSeed: string = '//Alice') {
+export async function destroyCollectionExpectSuccess(collectionId: number, senderSeed = '//Alice') {
   await usingApi(async (api) => {
     // Run the DestroyCollection transaction
     const alicePrivateKey = privateKey(senderSeed);
@@ -471,7 +462,7 @@
   });
 }
 
-export async function setCollectionSponsorExpectFailure(collectionId: number, sponsor: string, senderSeed: string = '//Alice') {
+export async function setCollectionSponsorExpectFailure(collectionId: number, sponsor: string, senderSeed = '//Alice') {
   await usingApi(async (api) => {
 
     // Run the transaction
@@ -481,7 +472,7 @@
   });
 }
 
-export async function confirmSponsorshipExpectSuccess(collectionId: number, senderSeed: string = '//Alice') {
+export async function confirmSponsorshipExpectSuccess(collectionId: number, senderSeed = '//Alice') {
   await usingApi(async (api) => {
 
     // Run the transaction
@@ -502,7 +493,7 @@
 }
 
 
-export async function confirmSponsorshipExpectFailure(collectionId: number, senderSeed: string = '//Alice') {
+export async function confirmSponsorshipExpectFailure(collectionId: number, senderSeed = '//Alice') {
   await usingApi(async (api) => {
 
     // Run the transaction
@@ -552,7 +543,7 @@
   });
 }
 
-export async function toggleContractWhitelistExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string, enabled: boolean) {
+export async function toggleContractWhitelistExpectSuccess(sender: IKeyringPair, contractAddress: AccountId | string) {
   await usingApi(async (api) => {
     const tx = api.tx.nft.toggleContractWhiteList(contractAddress, true);
     const events = await submitTransactionAsync(sender, tx);
@@ -563,7 +554,7 @@
 }
 
 export async function isWhitelistedInContract(contractAddress: AccountId | string, user: string) {
-  let whitelisted: boolean = false;
+  let whitelisted = false;
   await usingApi(async (api) => {
     whitelisted = (await api.query.nft.contractWhiteList(contractAddress, user)).toJSON() as boolean;
   });
@@ -665,8 +656,10 @@
 }
 
 export async function
-  approveExpectSuccess(collectionId: number,
-    tokenId: number, owner: IKeyringPair, approved: IKeyringPair | CrossAccountId | string, amount: number | bigint = 1) {
+approveExpectSuccess(
+  collectionId: number,
+  tokenId: number, owner: IKeyringPair, approved: IKeyringPair | CrossAccountId | string, amount: number | bigint = 1,
+) {
   await usingApi(async (api: ApiPromise) => {
     approved = normalizeAccountId(approved);
     const allowanceBefore =
@@ -683,21 +676,22 @@
 }
 
 export async function
-  transferFromExpectSuccess(collectionId: number,
-    tokenId: number,
-    accountApproved: IKeyringPair,
-    accountFrom: IKeyringPair | CrossAccountId,
-    accountTo: IKeyringPair | CrossAccountId,
-    value: number | bigint = 1,
-    type: string = 'NFT') {
+transferFromExpectSuccess(
+  collectionId: number,
+  tokenId: number,
+  accountApproved: IKeyringPair,
+  accountFrom: IKeyringPair | CrossAccountId,
+  accountTo: IKeyringPair | CrossAccountId,
+  value: number | bigint = 1,
+  type = 'NFT',
+) {
   await usingApi(async (api: ApiPromise) => {
     const to = normalizeAccountId(accountTo);
     let balanceBefore = new BN(0);
     if (type === 'Fungible') {
       balanceBefore = await api.query.nft.balance(collectionId, toSubstrateAddress(to)) as unknown as BN;
     }
-    const transferFromTx = api.tx.nft.transferFrom(
-      normalizeAccountId(accountFrom), to, collectionId, tokenId, value);
+    const transferFromTx = api.tx.nft.transferFrom(normalizeAccountId(accountFrom), to, collectionId, tokenId, value);
     const events = await submitTransactionAsync(accountApproved, transferFromTx);
     const result = getCreateItemResult(events);
     // tslint:disable-next-line:no-unused-expression
@@ -720,15 +714,16 @@
 }
 
 export async function
-  transferFromExpectFail(collectionId: number,
-    tokenId: number,
-    accountApproved: IKeyringPair,
-    accountFrom: IKeyringPair,
-    accountTo: IKeyringPair,
-    value: number | bigint = 1) {
+transferFromExpectFail(
+  collectionId: number,
+  tokenId: number,
+  accountApproved: IKeyringPair,
+  accountFrom: IKeyringPair,
+  accountTo: IKeyringPair,
+  value: number | bigint = 1,
+) {
   await usingApi(async (api: ApiPromise) => {
-    const transferFromTx = api.tx.nft.transferFrom(
-      normalizeAccountId(accountFrom.address), normalizeAccountId(accountTo.address), collectionId, tokenId, value);
+    const transferFromTx = api.tx.nft.transferFrom(normalizeAccountId(accountFrom.address), normalizeAccountId(accountTo.address), collectionId, tokenId, value);
     const events = await expect(submitTransactionExpectFailAsync(accountApproved, transferFromTx)).to.be.rejected;
     const result = getCreateCollectionResult(events);
     // tslint:disable-next-line:no-unused-expression
@@ -736,36 +731,34 @@
   });
 }
 
+/* eslint no-async-promise-executor: "off" */
 async function getBlockNumber(api: ApiPromise): Promise<number> {
-  return new Promise<number>(async (resolve, reject) => {
+  return new Promise<number>(async (resolve) => {
     const unsubscribe = await api.rpc.chain.subscribeNewHeads((head) => {
-        unsubscribe();
-        resolve(head.number.toNumber());
+      unsubscribe();
+      resolve(head.number.toNumber());
     });
   });
 }
 
 export async function
-scheduleTransferExpectSuccess(collectionId: number,
-                      tokenId: number,
-                      sender: IKeyringPair,
-                      recipient: IKeyringPair,
-                      value: number | bigint = 1,
-                      type: string = 'NFT') {
+scheduleTransferExpectSuccess(
+  collectionId: number,
+  tokenId: number,
+  sender: IKeyringPair,
+  recipient: IKeyringPair,
+  value: number | bigint = 1,
+) {
   await usingApi(async (api: ApiPromise) => {
-    let balanceBefore = new BN(0);
-
-
-    let blockNumber: number | undefined = await getBlockNumber(api);
-    let expectedBlockNumber = blockNumber + 2;
+    const blockNumber: number | undefined = await getBlockNumber(api);
+    const expectedBlockNumber = blockNumber + 2;
 
     expect(blockNumber).to.be.greaterThan(0);
     const transferTx = await api.tx.nft.transfer(recipient.address, collectionId, tokenId, value); 
     const scheduleTx = await api.tx.scheduler.schedule(expectedBlockNumber, null, 0, transferTx);
 
-    const events = await submitTransactionAsync(sender, scheduleTx);
+    await submitTransactionAsync(sender, scheduleTx);
 
-    const sponsorBalanceBefore = new BigNumber((await api.query.system.account(sender.address)).data.free.toString());
     const recipientBalanceBefore = new BigNumber((await api.query.system.account(recipient.address)).data.free.toString());
 
     const nftItemDataBefore = (await api.query.nft.nftItemList(collectionId, tokenId)).toJSON() as unknown as ITokenDataType;
@@ -774,7 +767,6 @@
     // sleep for 2 blocks
     await new Promise(resolve => setTimeout(resolve, 6000 * 2));
 
-    const sponsorBalanceAfter = new BigNumber((await api.query.system.account(sender.address)).data.free.toString());
     const recipientBalanceAfter = new BigNumber((await api.query.system.account(recipient.address)).data.free.toString());
 
     const nftItemData = (await api.query.nft.nftItemList(collectionId, tokenId)).toJSON() as unknown as ITokenDataType;
@@ -785,12 +777,14 @@
 
 
 export async function
-  transferExpectSuccess(collectionId: number,
-    tokenId: number,
-    sender: IKeyringPair,
-    recipient: IKeyringPair | CrossAccountId,
-    value: number | bigint = 1,
-    type: string = 'NFT') {
+transferExpectSuccess(
+  collectionId: number,
+  tokenId: number,
+  sender: IKeyringPair,
+  recipient: IKeyringPair | CrossAccountId,
+  value: number | bigint = 1,
+  type = 'NFT',
+) {
   await usingApi(async (api: ApiPromise) => {
     const to = normalizeAccountId(recipient);
 
@@ -826,12 +820,13 @@
 }
 
 export async function
-  transferExpectFail(collectionId: number,
-    tokenId: number,
-    sender: IKeyringPair,
-    recipient: IKeyringPair,
-    value: number | bigint = 1,
-    type: string = 'NFT') {
+transferExpectFail(
+  collectionId: number,
+  tokenId: number,
+  sender: IKeyringPair,
+  recipient: IKeyringPair,
+  value: number | bigint = 1,
+) {
   await usingApi(async (api: ApiPromise) => {
     const transferTx = api.tx.nft.transfer(normalizeAccountId(recipient.address), collectionId, tokenId, value);
     const events = await expect(submitTransactionExpectFailAsync(sender, transferTx)).to.be.rejected;
@@ -844,8 +839,10 @@
 }
 
 export async function
-  approveExpectFail(collectionId: number,
-    tokenId: number, owner: IKeyringPair, approved: IKeyringPair, amount: number | bigint = 1) {
+approveExpectFail(
+  collectionId: number,
+  tokenId: number, owner: IKeyringPair, approved: IKeyringPair, amount: number | bigint = 1,
+) {
   await usingApi(async (api: ApiPromise) => {
     const approveNftTx = api.tx.nft.approve(normalizeAccountId(approved.address), collectionId, tokenId, amount);
     const events = await expect(submitTransactionExpectFailAsync(owner, approveNftTx)).to.be.rejected;
@@ -882,9 +879,8 @@
   });
 }
 
-export async function createItemExpectSuccess(
-  sender: IKeyringPair, collectionId: number, createMode: string, owner: CrossAccountId | string = sender.address) {
-  let newItemId: number = 0;
+export async function createItemExpectSuccess(sender: IKeyringPair, collectionId: number, createMode: string, owner: CrossAccountId | string = sender.address) {
+  let newItemId = 0;
   await usingApi(async (api) => {
     const to = normalizeAccountId(owner);
     const AItemCount = parseInt((await api.query.nft.itemListIndex(collectionId)).toString(), 10);
@@ -925,8 +921,7 @@
   return newItemId;
 }
 
-export async function createItemExpectFailure(
-  sender: IKeyringPair, collectionId: number, createMode: string, owner: string = sender.address) {
+export async function createItemExpectFailure(sender: IKeyringPair, collectionId: number, createMode: string, owner: string = sender.address) {
   await usingApi(async (api) => {
     const tx = api.tx.nft.createItem(collectionId, normalizeAccountId(owner), createMode);
     
@@ -1000,7 +995,7 @@
 }
 
 export async function isWhitelisted(collectionId: number, address: string) {
-  let whitelisted: boolean = false;
+  let whitelisted = false;
   await usingApi(async (api) => {
     whitelisted = (await api.query.nft.whiteList(collectionId, address)).toJSON() as unknown as boolean;
   });
modifiedtests/src/util/util.tsdiffbeforeafterboth
--- a/tests/src/util/util.ts
+++ b/tests/src/util/util.ts
@@ -4,7 +4,7 @@
 //
 
 export function strToUTF16(str: string): any {
-  let buf: number[] = [];
+  const buf: number[] = [];
   for (let i=0, strLen=str.length; i < strLen; i++) {
     buf.push(str.charCodeAt(i));
   }
@@ -12,7 +12,7 @@
 }
 
 export function utf16ToStr(buf: number[]): string {
-  let str: string = "";
+  let str = '';
   for (let i=0, strLen=buf.length; i < strLen; i++) {
     if (buf[i] != 0) str += String.fromCharCode(buf[i]);
     else break;
@@ -21,13 +21,13 @@
 }
 
 export function hexToStr(buf: string): string {
-  let str: string = "";
-  let hexStart = buf.indexOf("0x");
+  let str = '';
+  let hexStart = buf.indexOf('0x');
   if (hexStart < 0) hexStart = 0;
   else hexStart = 2;  
   for (let i=hexStart, strLen=buf.length; i < strLen; i+=2) {
-    let ch = buf[i] + buf[i+1];
-    let num = parseInt(ch, 16);
+    const ch = buf[i] + buf[i+1];
+    const num = parseInt(ch, 16);
     if (num != 0) str += String.fromCharCode(num);
     else break;
   }