git.delta.rocks / unique-network / refs/commits / 24d3f67bfdff

difftreelog

Merge pull request #848 from UniqueNetwork/fix/find-parent

Yaroslav Bolyukin2023-01-19parents: #030bc0d #05c459d.patch.diff
in: master

15 files changed

modifiedpallets/common/src/erc.rsdiffbeforeafterboth
--- a/pallets/common/src/erc.rs
+++ b/pallets/common/src/erc.rs
@@ -28,8 +28,8 @@
 use sp_std::{vec, vec::Vec};
 use sp_core::U256;
 use up_data_structs::{
-	AccessMode, CollectionMode, CollectionPermissions, OwnerRestrictedSet, Property,
-	SponsoringRateLimit, SponsorshipState,
+	CollectionMode, CollectionPermissions, OwnerRestrictedSet, Property, SponsoringRateLimit,
+	SponsorshipState,
 };
 
 use crate::{
modifiedpallets/common/src/eth.rsdiffbeforeafterboth
--- a/pallets/common/src/eth.rs
+++ b/pallets/common/src/eth.rs
@@ -80,10 +80,7 @@
 		if cross_account_id.is_canonical_substrate() {
 			Self::from_sub::<T>(cross_account_id.as_sub())
 		} else {
-			Self {
-				eth: *cross_account_id.as_eth(),
-				sub: Default::default(),
-			}
+			Self::from_eth(*cross_account_id.as_eth())
 		}
 	}
 	/// Creates [`CrossAddress`] from Substrate account.
@@ -97,6 +94,13 @@
 			sub: U256::from_big_endian(account_id.as_ref()),
 		}
 	}
+	/// Creates [`CrossAddress`] from Ethereum account.
+	pub fn from_eth(address: Address) -> Self {
+		Self {
+			eth: address,
+			sub: Default::default(),
+		}
+	}
 	/// Converts [`CrossAddress`] to `CrossAccountId`.
 	pub fn into_sub_cross_account<T>(&self) -> evm_coder::execution::Result<T::CrossAccountId>
 	where
modifiedpallets/common/src/lib.rsdiffbeforeafterboth
--- a/pallets/common/src/lib.rs
+++ b/pallets/common/src/lib.rs
@@ -100,6 +100,7 @@
 	PropertyValue,
 	PropertyPermission,
 	PropertiesError,
+	TokenOwnerError,
 	PropertyKeyPermission,
 	TokenData,
 	TrySetProperty,
@@ -2134,7 +2135,7 @@
 	/// Get the owner of the token.
 	///
 	/// * `token` - The token for which you need to find out the owner.
-	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId>;
+	fn token_owner(&self, token: TokenId) -> Result<T::CrossAccountId, TokenOwnerError>;
 
 	/// Returns 10 tokens owners in no particular order.
 	///
modifiedpallets/fungible/src/common.rsdiffbeforeafterboth
--- a/pallets/fungible/src/common.rs
+++ b/pallets/fungible/src/common.rs
@@ -17,7 +17,9 @@
 use core::marker::PhantomData;
 
 use frame_support::{dispatch::DispatchResultWithPostInfo, ensure, fail, weights::Weight, traits::Get};
-use up_data_structs::{TokenId, CollectionId, CreateItemExData, budget::Budget, CreateItemData};
+use up_data_structs::{
+	TokenId, CollectionId, CreateItemExData, budget::Budget, CreateItemData, TokenOwnerError,
+};
 use pallet_common::{
 	CommonCollectionOperations, CommonWeightInfo, RefungibleExtensions, with_weight,
 	weights::WeightInfo as _,
@@ -404,8 +406,8 @@
 		TokenId::default()
 	}
 
-	fn token_owner(&self, _token: TokenId) -> Option<T::CrossAccountId> {
-		None
+	fn token_owner(&self, _token: TokenId) -> Result<T::CrossAccountId, TokenOwnerError> {
+		Err(TokenOwnerError::MultipleOwners)
 	}
 
 	/// Returns 10 tokens owners in no particular order.
modifiedpallets/nonfungible/src/common.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/common.rs
+++ b/pallets/nonfungible/src/common.rs
@@ -19,7 +19,7 @@
 use frame_support::{dispatch::DispatchResultWithPostInfo, ensure, fail, weights::Weight};
 use up_data_structs::{
 	TokenId, CreateItemExData, CollectionId, budget::Budget, Property, PropertyKey,
-	PropertyKeyPermission, PropertyValue,
+	PropertyKeyPermission, PropertyValue, TokenOwnerError,
 };
 use pallet_common::{
 	CommonCollectionOperations, CommonWeightInfo, RefungibleExtensions, with_weight,
@@ -460,13 +460,15 @@
 		TokenId(<TokensMinted<T>>::get(self.id))
 	}
 
-	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId> {
-		<TokenData<T>>::get((self.id, token)).map(|t| t.owner)
+	fn token_owner(&self, token: TokenId) -> Result<T::CrossAccountId, TokenOwnerError> {
+		<TokenData<T>>::get((self.id, token))
+			.map(|t| t.owner)
+			.ok_or(TokenOwnerError::NotFound)
 	}
 
 	/// Returns token owners.
 	fn token_owners(&self, token: TokenId) -> Vec<T::CrossAccountId> {
-		self.token_owner(token).map_or_else(|| vec![], |t| vec![t])
+		self.token_owner(token).map_or_else(|_| vec![], |t| vec![t])
 	}
 
 	fn token_property(&self, token_id: TokenId, key: &PropertyKey) -> Option<PropertyValue> {
modifiedpallets/nonfungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/erc.rs
+++ b/pallets/nonfungible/src/erc.rs
@@ -728,7 +728,7 @@
 	fn cross_owner_of(&self, token_id: U256) -> Result<eth::CrossAddress> {
 		Self::token_owner(&self, token_id.try_into()?)
 			.map(|o| eth::CrossAddress::from_sub_cross_account::<T>(&o))
-			.ok_or(Error::Revert("key too large".into()))
+			.map_err(|_| Error::Revert("token not found".into()))
 	}
 
 	/// Returns the token properties.
modifiedpallets/proxy-rmrk-core/src/lib.rsdiffbeforeafterboth
--- a/pallets/proxy-rmrk-core/src/lib.rs
+++ b/pallets/proxy-rmrk-core/src/lib.rs
@@ -741,7 +741,8 @@
 						Some((collection_id, nft_id)),
 						&target_nft_budget,
 					)
-					.map_err(Self::map_unique_err_to_proxy)?;
+					.map_err(Self::map_unique_err_to_proxy)?
+					.ok_or::<DispatchError>(<Error<T>>::NoPermission.into())?;
 
 					approval_required = cross_sender != target_nft_owner;
 
@@ -989,7 +990,8 @@
 
 			let nft_owner =
 				<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)
-					.map_err(|_| <Error<T>>::ResourceDoesntExist)?;
+					.map_err(|_| <Error<T>>::ResourceDoesntExist)?
+					.ok_or::<DispatchError>(<Error<T>>::NoPermission.into())?;
 
 			Self::try_mutate_resource_info(collection_id, nft_id, resource_id, |res| {
 				ensure!(res.pending, <Error<T>>::ResourceNotPending);
@@ -1044,7 +1046,8 @@
 
 			let nft_owner =
 				<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)
-					.map_err(|_| <Error<T>>::ResourceDoesntExist)?;
+					.map_err(|_| <Error<T>>::ResourceDoesntExist)?
+					.ok_or::<DispatchError>(<Error<T>>::NoPermission.into())?;
 
 			ensure!(cross_sender == nft_owner, <Error<T>>::NoPermission);
 
@@ -1666,7 +1669,8 @@
 		let budget = budget::Value::new(NESTING_BUDGET);
 
 		let nft_owner = <PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)
-			.map_err(Self::map_unique_err_to_proxy)?;
+			.map_err(Self::map_unique_err_to_proxy)?
+			.ok_or::<DispatchError>(<Error<T>>::NoPermission.into())?;
 
 		let pending = sender != nft_owner;
 
@@ -1720,7 +1724,8 @@
 
 		let budget = up_data_structs::budget::Value::new(NESTING_BUDGET);
 		let topmost_owner =
-			<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)?;
+			<PalletStructure<T>>::find_topmost_owner(collection_id, nft_id, &budget)?
+				.ok_or::<DispatchError>(<Error<T>>::NoPermission.into())?;
 
 		let sender = T::CrossAccountId::from_sub(sender);
 		if topmost_owner == sender {
modifiedpallets/proxy-rmrk-core/src/rpc.rsdiffbeforeafterboth
--- a/pallets/proxy-rmrk-core/src/rpc.rs
+++ b/pallets/proxy-rmrk-core/src/rpc.rs
@@ -68,7 +68,7 @@
 	}
 
 	let owner = match collection.token_owner(nft_id) {
-		Some(owner) => match T::CrossTokenAddressMapping::address_to_token(&owner) {
+		Ok(owner) => match T::CrossTokenAddressMapping::address_to_token(&owner) {
 			Some((col, tok)) => {
 				let rmrk_collection = <Pallet<T>>::rmrk_collection_id(col)?;
 
@@ -76,7 +76,7 @@
 			}
 			None => RmrkAccountIdOrCollectionNftTuple::AccountId(owner.as_sub().clone()),
 		},
-		None => return Ok(None),
+		_ => return Ok(None),
 	};
 
 	Ok(Some(RmrkInstanceInfo {
modifiedpallets/refungible/src/common.rsdiffbeforeafterboth
--- a/pallets/refungible/src/common.rs
+++ b/pallets/refungible/src/common.rs
@@ -21,7 +21,7 @@
 use up_data_structs::{
 	CollectionId, TokenId, CreateItemExData, budget::Budget, Property, PropertyKey, PropertyValue,
 	PropertyKeyPermission, CollectionPropertiesVec, CreateRefungibleExMultipleOwners,
-	CreateRefungibleExSingleOwner,
+	CreateRefungibleExSingleOwner, TokenOwnerError,
 };
 use pallet_common::{
 	CommonCollectionOperations, CommonWeightInfo, RefungibleExtensions, with_weight,
@@ -478,7 +478,7 @@
 		TokenId(<TokensMinted<T>>::get(self.id))
 	}
 
-	fn token_owner(&self, token: TokenId) -> Option<T::CrossAccountId> {
+	fn token_owner(&self, token: TokenId) -> Result<T::CrossAccountId, TokenOwnerError> {
 		<Pallet<T>>::token_owner(self.id, token)
 	}
modifiedpallets/refungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/refungible/src/erc.rs
+++ b/pallets/refungible/src/erc.rs
@@ -43,7 +43,7 @@
 use sp_std::{collections::btree_map::BTreeMap, vec::Vec, vec};
 use up_data_structs::{
 	CollectionId, CollectionPropertiesVec, mapping::TokenAddressMapping, Property, PropertyKey,
-	PropertyKeyPermission, PropertyPermission, TokenId,
+	PropertyKeyPermission, PropertyPermission, TokenId, TokenOwnerError,
 };
 
 use crate::{
@@ -411,9 +411,12 @@
 		self.consume_store_reads(2)?;
 		let token = token_id.try_into()?;
 		let owner = <Pallet<T>>::token_owner(self.id, token);
-		Ok(owner
+		owner
 			.map(|address| *address.as_eth())
-			.unwrap_or_else(|| ADDRESS_FOR_PARTIALLY_OWNED_TOKENS))
+			.or_else(|err| match err {
+				TokenOwnerError::NotFound => Err(Error::Revert("token not found".into())),
+				TokenOwnerError::MultipleOwners => Ok(ADDRESS_FOR_PARTIALLY_OWNED_TOKENS),
+			})
 	}
 
 	/// @dev Not implemented
@@ -766,7 +769,12 @@
 	fn cross_owner_of(&self, token_id: U256) -> Result<eth::CrossAddress> {
 		Self::token_owner(&self, token_id.try_into()?)
 			.map(|o| eth::CrossAddress::from_sub_cross_account::<T>(&o))
-			.ok_or(Error::Revert("key too large".into()))
+			.or_else(|err| match err {
+				TokenOwnerError::NotFound => Err(Error::Revert("token not found".into())),
+				TokenOwnerError::MultipleOwners => Ok(eth::CrossAddress::from_eth(
+					ADDRESS_FOR_PARTIALLY_OWNED_TOKENS,
+				)),
+			})
 	}
 
 	/// Returns the token properties.
modifiedpallets/refungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/refungible/src/lib.rs
+++ b/pallets/refungible/src/lib.rs
@@ -107,7 +107,7 @@
 	AccessMode, budget::Budget, CollectionId, CollectionFlags, CreateCollectionData,
 	mapping::TokenAddressMapping, MAX_REFUNGIBLE_PIECES, Property, PropertyKey,
 	PropertyKeyPermission, PropertyPermission, PropertyScope, PropertyValue, TokenId,
-	TrySetProperty, PropertiesPermissionMap, CreateRefungibleExMultipleOwners,
+	TrySetProperty, PropertiesPermissionMap, CreateRefungibleExMultipleOwners, TokenOwnerError,
 };
 
 pub use pallet::*;
@@ -480,7 +480,7 @@
 			<Balance<T>>::remove((collection.id, token, owner));
 			<AccountBalance<T>>::insert((collection.id, owner), account_balance);
 
-			if let Some(user) = Self::token_owner(collection.id, token) {
+			if let Ok(user) = Self::token_owner(collection.id, token) {
 				<PalletEvm<T>>::deposit_log(
 					ERC721Events::Transfer {
 						from: erc::ADDRESS_FOR_PARTIALLY_OWNED_TOKENS,
@@ -1365,17 +1365,20 @@
 		Ok(())
 	}
 
-	fn token_owner(collection_id: CollectionId, token_id: TokenId) -> Option<T::CrossAccountId> {
+	fn token_owner(
+		collection_id: CollectionId,
+		token_id: TokenId,
+	) -> Result<T::CrossAccountId, TokenOwnerError> {
 		let mut owner = None;
 		let mut count = 0;
 		for key in Balance::<T>::iter_key_prefix((collection_id, token_id)) {
 			count += 1;
 			if count > 1 {
-				return None;
+				return Err(TokenOwnerError::MultipleOwners);
 			}
 			owner = Some(key);
 		}
-		owner
+		owner.ok_or(TokenOwnerError::NotFound)
 	}
 
 	fn total_pieces(collection_id: CollectionId, token_id: TokenId) -> Option<u128> {
modifiedpallets/structure/src/lib.rsdiffbeforeafterboth
--- a/pallets/structure/src/lib.rs
+++ b/pallets/structure/src/lib.rs
@@ -61,7 +61,9 @@
 use frame_support::fail;
 pub use pallet::*;
 use pallet_common::{dispatch::CollectionDispatch, CollectionHandle};
-use up_data_structs::{CollectionId, TokenId, mapping::TokenAddressMapping, budget::Budget};
+use up_data_structs::{
+	CollectionId, TokenId, mapping::TokenAddressMapping, budget::Budget, TokenOwnerError,
+};
 
 #[cfg(feature = "runtime-benchmarks")]
 pub mod benchmarking;
@@ -135,6 +137,8 @@
 	User(CrossAccountId),
 	/// Could not find the token provided as the owner.
 	TokenNotFound,
+	/// Nested token has multiple owners.
+	MultipleOwners,
 	/// Token owner is another token (still, the target token may not exist).
 	Token(CollectionId, TokenId),
 }
@@ -159,11 +163,12 @@
 		let handle = handle.as_dyn();
 
 		Ok(match handle.token_owner(token) {
-			Some(owner) => match T::CrossTokenAddressMapping::address_to_token(&owner) {
+			Ok(owner) => match T::CrossTokenAddressMapping::address_to_token(&owner) {
 				Some((collection, token)) => Parent::Token(collection, token),
 				None => Parent::User(owner),
 			},
-			None => Parent::TokenNotFound,
+			Err(TokenOwnerError::MultipleOwners) => Parent::MultipleOwners,
+			Err(TokenOwnerError::NotFound) => Parent::TokenNotFound,
 		})
 	}
 
@@ -203,19 +208,27 @@
 	///
 	/// May return token address if parent token not yet exists
 	///
+	/// Returns `None` if the token has multiple owners.
+	///
 	/// - `budget`: Limit for searching parents in depth.
 	pub fn find_topmost_owner(
 		collection: CollectionId,
 		token: TokenId,
 		budget: &dyn Budget,
-	) -> Result<T::CrossAccountId, DispatchError> {
+	) -> Result<Option<T::CrossAccountId>, DispatchError> {
 		let owner = Self::parent_chain(collection, token)
 			.take_while(|_| budget.consume())
-			.find(|p| matches!(p, Ok(Parent::User(_) | Parent::TokenNotFound)))
+			.find(|p| {
+				matches!(
+					p,
+					Ok(Parent::User(_) | Parent::TokenNotFound | Parent::MultipleOwners)
+				)
+			})
 			.ok_or(<Error<T>>::DepthLimit)??;
 
 		Ok(match owner {
-			Parent::User(v) => v,
+			Parent::User(v) => Some(v),
+			Parent::MultipleOwners => None,
 			_ => fail!(<Error<T>>::TokenNotFound),
 		})
 	}
@@ -223,13 +236,15 @@
 	/// Find the topmost parent and check that assigning `for_nest` token as a child for
 	/// `token` wouldn't create a cycle.
 	///
+	/// Returns `None` if the token has multiple owners.
+	///
 	/// - `budget`: Limit for searching parents in depth.
 	pub fn get_checked_topmost_owner(
 		collection: CollectionId,
 		token: TokenId,
 		for_nest: Option<(CollectionId, TokenId)>,
 		budget: &dyn Budget,
-	) -> Result<T::CrossAccountId, DispatchError> {
+	) -> Result<Option<T::CrossAccountId>, DispatchError> {
 		// Tried to nest token in itself
 		if Some((collection, token)) == for_nest {
 			return Err(<Error<T>>::OuroborosDetected.into());
@@ -242,8 +257,9 @@
 					return Err(<Error<T>>::OuroborosDetected.into())
 				}
 				// Token is owned by other user
-				Parent::User(user) => return Ok(user),
+				Parent::User(user) => return Ok(Some(user)),
 				Parent::TokenNotFound => return Err(<Error<T>>::TokenNotFound.into()),
+				Parent::MultipleOwners => return Ok(None),
 				// Continue parent chain
 				Parent::Token(_, _) => {}
 			}
@@ -284,12 +300,17 @@
 		budget: &dyn Budget,
 	) -> Result<bool, DispatchError> {
 		let target_parent = match T::CrossTokenAddressMapping::address_to_token(&user) {
-			Some((collection, token)) => Self::find_topmost_owner(collection, token, budget)?,
+			Some((collection, token)) => match Self::find_topmost_owner(collection, token, budget)?
+			{
+				Some(topmost_owner) => topmost_owner,
+				None => return Ok(false),
+			},
 			None => user,
 		};
 
-		Self::get_checked_topmost_owner(collection, token, for_nest, budget)
-			.map(|indirect_owner| indirect_owner == target_parent)
+		Self::get_checked_topmost_owner(collection, token, for_nest, budget).map(|indirect_owner| {
+			indirect_owner.map_or(false, |indirect_owner| indirect_owner == target_parent)
+		})
 	}
 
 	/// Checks that `under` is valid token and that `token_id` could be nested under it
modifiedprimitives/data-structs/src/lib.rsdiffbeforeafterboth
--- a/primitives/data-structs/src/lib.rs
+++ b/primitives/data-structs/src/lib.rs
@@ -1099,6 +1099,13 @@
 	EmptyPropertyKey,
 }
 
+/// Token owner error: it could be either `NotFound` ot `MultipleOwners`.
+#[derive(Debug)]
+pub enum TokenOwnerError {
+	NotFound,
+	MultipleOwners,
+}
+
 /// Marker for scope of property.
 ///
 /// Scoped property can't be changed by user. Used for external collections.
modifiedruntime/common/runtime_apis.rsdiffbeforeafterboth
--- a/runtime/common/runtime_apis.rs
+++ b/runtime/common/runtime_apis.rs
@@ -16,11 +16,11 @@
 
 #[macro_export]
 macro_rules! dispatch_unique_runtime {
-	($collection:ident.$method:ident($($name:ident),*)) => {{
+	($collection:ident.$method:ident($($name:ident),*) $($rest:tt)*) => {{
 		let collection = <Runtime as pallet_common::Config>::CollectionDispatch::dispatch(<pallet_common::CollectionHandle<Runtime>>::try_get($collection)?);
 		let dispatch = collection.as_dyn();
 
-		Ok::<_, DispatchError>(dispatch.$method($($name),*))
+		Ok::<_, DispatchError>(dispatch.$method($($name),*) $($rest)*)
 	}};
 }
 
@@ -73,7 +73,7 @@
                 }
 
                 fn token_owner(collection: CollectionId, token: TokenId) -> Result<Option<CrossAccountId>, DispatchError> {
-                    dispatch_unique_runtime!(collection.token_owner(token))
+                    dispatch_unique_runtime!(collection.token_owner(token).ok())
                 }
 
                 fn token_owners(collection: CollectionId, token: TokenId) -> Result<Vec::<CrossAccountId>, DispatchError>  {
@@ -83,7 +83,7 @@
                 fn topmost_token_owner(collection: CollectionId, token: TokenId) -> Result<Option<CrossAccountId>, DispatchError> {
                     let budget = up_data_structs::budget::Value::new(10);
 
-                    Ok(Some(<pallet_structure::Pallet<Runtime>>::find_topmost_owner(collection, token, &budget)?))
+                    Ok(<pallet_structure::Pallet<Runtime>>::find_topmost_owner(collection, token, &budget)?)
                 }
                 fn token_children(collection: CollectionId, token: TokenId) -> Result<Vec<TokenChild>, DispatchError> {
                     Ok(<pallet_nonfungible::Pallet<Runtime>>::token_children_ids(collection, token))
modifiedtests/src/nesting/nest.test.tsdiffbeforeafterboth
before · tests/src/nesting/nest.test.ts
1// Copyright 2019-2022 Unique Network (Gibraltar) Ltd.2// This file is part of Unique Network.34// Unique Network is free software: you can redistribute it and/or modify5// it under the terms of the GNU General Public License as published by6// the Free Software Foundation, either version 3 of the License, or7// (at your option) any later version.89// Unique Network is distributed in the hope that it will be useful,10// but WITHOUT ANY WARRANTY; without even the implied warranty of11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the12// GNU General Public License for more details.1314// You should have received a copy of the GNU General Public License15// along with Unique Network. If not, see <http://www.gnu.org/licenses/>.1617import {IKeyringPair} from '@polkadot/types/types';18import {expect, itSub, usingPlaygrounds} from '../util';1920describe('Integration Test: Composite nesting tests', () => {21  let alice: IKeyringPair;22  let bob: IKeyringPair;2324  before(async () => {25    await usingPlaygrounds(async (helper, privateKey) => {26      const donor = await privateKey({filename: __filename});27      [alice, bob] = await helper.arrange.createAccounts([50n, 10n], donor);28    });29  });3031  itSub('Performs the full suite: bundles a token, transfers, and unnests', async ({helper}) => {32    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});33    const targetToken = await collection.mintToken(alice);3435    // Create an immediately nested token36    const nestedToken = await collection.mintToken(alice, targetToken.nestingAccount());37    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});38    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());3940    // Create a token to be nested41    const newToken = await collection.mintToken(alice);4243    // Nest44    await newToken.nest(alice, targetToken);45    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});46    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());4748    // Move bundle to different user49    await targetToken.transfer(alice, {Substrate: bob.address});50    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});51    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());52    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});53    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());5455    // Unnest56    await newToken.unnest(bob, targetToken, {Substrate: bob.address});57    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});58    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: bob.address});59  });6061  itSub('Transfers an already bundled token', async ({helper}) => {62    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});63    const tokenA = await collection.mintToken(alice);64    const tokenB = await collection.mintToken(alice);6566    // Create a nested token67    const tokenC = await collection.mintToken(alice, tokenA.nestingAccount());68    expect(await tokenC.getOwner()).to.be.deep.equal(tokenA.nestingAccount().toLowerCase());6970    // Transfer the nested token to another token71    await expect(tokenC.transferFrom(alice, tokenA.nestingAccount(), tokenB.nestingAccount())).to.be.fulfilled;72    expect(await tokenC.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});73    expect(await tokenC.getOwner()).to.be.deep.equal(tokenB.nestingAccount().toLowerCase());74  });7576  itSub('Checks token children', async ({helper}) => {77    const collectionA = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});78    const collectionB = await helper.ft.mintCollection(alice);7980    const targetToken = await collectionA.mintToken(alice);81    expect((await targetToken.getChildren()).length).to.be.equal(0, 'Children length check at creation');8283    // Create a nested NFT token84    const tokenA = await collectionA.mintToken(alice, targetToken.nestingAccount());85    expect(await targetToken.getChildren()).to.have.deep.members([86      {tokenId: tokenA.tokenId, collectionId: collectionA.collectionId},87    ], 'Children contents check at nesting #1').and.be.length(1, 'Children length check at nesting #1');8889    // Create then nest90    const tokenB = await collectionA.mintToken(alice);91    await tokenB.nest(alice, targetToken);92    expect(await targetToken.getChildren()).to.have.deep.members([93      {tokenId: tokenA.tokenId, collectionId: collectionA.collectionId},94      {tokenId: tokenB.tokenId, collectionId: collectionA.collectionId},95    ], 'Children contents check at nesting #2').and.be.length(2, 'Children length check at nesting #2');9697    // Move token B to a different user outside the nesting tree98    await tokenB.unnest(alice, targetToken, {Substrate: bob.address});99    expect(await targetToken.getChildren()).to.be.have.deep.members([100      {tokenId: tokenA.tokenId, collectionId: collectionA.collectionId},101    ], 'Children contents check at nesting #3 (unnesting)').and.be.length(1, 'Children length check at nesting #3 (unnesting)');102103    // Create a fungible token in another collection and then nest104    await collectionB.mint(alice, 10n);105    await collectionB.transfer(alice, targetToken.nestingAccount(), 2n);106    expect(await targetToken.getChildren()).to.be.have.deep.members([107      {tokenId: tokenA.tokenId, collectionId: collectionA.collectionId},108      {tokenId: 0, collectionId: collectionB.collectionId},109    ], 'Children contents check at nesting #4 (from another collection)')110      .and.be.length(2, 'Children length check at nesting #4 (from another collection)');111112    // Move part of the fungible token inside token A deeper in the nesting tree113    await collectionB.transferFrom(alice, targetToken.nestingAccount(), tokenA.nestingAccount(), 1n);114    expect(await targetToken.getChildren()).to.be.have.deep.members([115      {tokenId: tokenA.tokenId, collectionId: collectionA.collectionId},116      {tokenId: 0, collectionId: collectionB.collectionId},117    ], 'Children contents check at nesting #5 (deeper)').and.be.length(2, 'Children length check at nesting #5 (deeper)');118    expect(await tokenA.getChildren()).to.be.have.deep.members([119      {tokenId: 0, collectionId: collectionB.collectionId},120    ], 'Children contents check at nesting #5.5 (deeper)').and.be.length(1, 'Children length check at nesting #5.5 (deeper)');121122    // Move the remaining part of the fungible token inside token A deeper in the nesting tree123    await collectionB.transferFrom(alice, targetToken.nestingAccount(), tokenA.nestingAccount(), 1n);124    expect(await targetToken.getChildren()).to.be.have.deep.members([125      {tokenId: tokenA.tokenId, collectionId: collectionA.collectionId},126    ], 'Children contents check at nesting #6 (deeper)').and.be.length(1, 'Children length check at nesting #6 (deeper)');127    expect(await tokenA.getChildren()).to.be.have.deep.members([128      {tokenId: 0, collectionId: collectionB.collectionId},129    ], 'Children contents check at nesting #6.5 (deeper)').and.be.length(1, 'Children length check at nesting #6.5 (deeper)');130  });131});132133describe('Integration Test: Various token type nesting', () => {134  let alice: IKeyringPair;135  let bob: IKeyringPair;136  let charlie: IKeyringPair;137138  before(async () => {139    await usingPlaygrounds(async (helper, privateKey) => {140      const donor = await privateKey({filename: __filename});141      [alice, bob, charlie] = await helper.arrange.createAccounts([50n, 10n, 10n], donor);142    });143  });144145  itSub('Admin (NFT): allows an Admin to nest a token', async ({helper}) => {146    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true}}});147    await collection.addAdmin(alice, {Substrate: bob.address});148    const targetToken = await collection.mintToken(alice, {Substrate: charlie.address});149150    // Create an immediately nested token151    const nestedToken = await collection.mintToken(bob, targetToken.nestingAccount());152    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});153    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());154155    // Create a token to be nested and nest156    const newToken = await collection.mintToken(bob);157    await newToken.nest(bob, targetToken);158    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});159    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());160  });161162  itSub('Admin (NFT): Admin and Token Owner can operate together', async ({helper}) => {163    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true, tokenOwner: true}}});164    await collection.addAdmin(alice, {Substrate: bob.address});165    const targetToken = await collection.mintToken(alice, {Substrate: charlie.address});166167    // Create an immediately nested token by an administrator168    const nestedToken = await collection.mintToken(bob, targetToken.nestingAccount());169    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});170    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());171172    // Create a token to be nested and nest173    const newToken = await collection.mintToken(alice, {Substrate: charlie.address});174    await newToken.nest(charlie, targetToken);175    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});176    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());177  });178179  itSub('Admin (NFT): allows an Admin to nest a token (Restricted nesting)', async ({helper}) => {180    const collectionA = await helper.nft.mintCollection(alice);181    await collectionA.addAdmin(alice, {Substrate: bob.address});182    const collectionB = await helper.nft.mintCollection(alice);183    await collectionB.addAdmin(alice, {Substrate: bob.address});184    await collectionA.setPermissions(alice, {nesting: {collectionAdmin: true, restricted:[collectionB.collectionId]}});185    const targetToken = await collectionA.mintToken(alice, {Substrate: charlie.address});186187    // Create an immediately nested token188    const nestedToken = await collectionB.mintToken(bob, targetToken.nestingAccount());189    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});190    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());191192    // Create a token to be nested and nest193    const newToken = await collectionB.mintToken(bob);194    await newToken.nest(bob, targetToken);195    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});196    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());197  });198199  // ---------- Non-Fungible ----------200201  itSub('NFT: allows an Owner to nest/unnest their token', async ({helper}) => {202    const collection = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true}}});203    await collection.addToAllowList(alice, {Substrate: charlie.address});204    const targetToken = await collection.mintToken(charlie);205    await collection.addToAllowList(alice, targetToken.nestingAccount());206207    // Create an immediately nested token208    const nestedToken = await collection.mintToken(charlie, targetToken.nestingAccount());209    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});210    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());211212    // Create a token to be nested and nest213    const newToken = await collection.mintToken(charlie);214    await newToken.nest(charlie, targetToken);215    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});216    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());217  });218219  itSub('NFT: allows an Owner to nest/unnest their token (Restricted nesting)', async ({helper}) => {220    const collectionA = await helper.nft.mintCollection(alice);221    const collectionB = await helper.nft.mintCollection(alice);222    //await collectionB.addAdmin(alice, {Substrate: bob.address});223    const targetToken = await collectionA.mintToken(alice, {Substrate: charlie.address});224225    await collectionA.setPermissions(alice, {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true, restricted:[collectionB.collectionId]}});226    await collectionA.addToAllowList(alice, {Substrate: charlie.address});227    await collectionA.addToAllowList(alice, targetToken.nestingAccount());228229    await collectionB.setPermissions(alice, {access: 'AllowList', mintMode: true});230    await collectionB.addToAllowList(alice, {Substrate: charlie.address});231    await collectionB.addToAllowList(alice, targetToken.nestingAccount());232233    // Create an immediately nested token234    const nestedToken = await collectionB.mintToken(charlie, targetToken.nestingAccount());235    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});236    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());237238    // Create a token to be nested and nest239    const newToken = await collectionB.mintToken(charlie);240    await newToken.nest(charlie, targetToken);241    expect(await newToken.getTopmostOwner()).to.be.deep.equal({Substrate: charlie.address});242    expect(await newToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());243  });244245  // ---------- Fungible ----------246247  itSub('Fungible: allows an Owner to nest/unnest their token', async ({helper}) => {248    const collectionNFT = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true}}});249    const collectionFT = await helper.ft.mintCollection(alice);250    const targetToken = await collectionNFT.mintToken(alice, {Substrate: charlie.address});251252    await collectionNFT.addToAllowList(alice, {Substrate: charlie.address});253    await collectionNFT.addToAllowList(alice, targetToken.nestingAccount());254255    await collectionFT.setPermissions(alice, {access: 'AllowList', mintMode: true});256    await collectionFT.addToAllowList(alice, {Substrate: charlie.address});257    await collectionFT.addToAllowList(alice, targetToken.nestingAccount());258259    // Create an immediately nested token260    await collectionFT.mint(charlie, 5n, targetToken.nestingAccount());261    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(5n);262263    // Create a token to be nested and nest264    await collectionFT.mint(charlie, 5n);265    await collectionFT.transfer(charlie, targetToken.nestingAccount(), 2n);266    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(7n);267  });268269  itSub('Fungible: allows an Owner to nest/unnest their token (Restricted nesting)', async ({helper}) => {270    const collectionNFT = await helper.nft.mintCollection(alice);271    const collectionFT = await helper.ft.mintCollection(alice);272    const targetToken = await collectionNFT.mintToken(alice, {Substrate: charlie.address});273274    await collectionNFT.setPermissions(alice, {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true, restricted:[collectionFT.collectionId]}});275    await collectionNFT.addToAllowList(alice, {Substrate: charlie.address});276    await collectionNFT.addToAllowList(alice, targetToken.nestingAccount());277278    await collectionFT.setPermissions(alice, {access: 'AllowList', mintMode: true});279    await collectionFT.addToAllowList(alice, {Substrate: charlie.address});280    await collectionFT.addToAllowList(alice, targetToken.nestingAccount());281282    // Create an immediately nested token283    await collectionFT.mint(charlie, 5n, targetToken.nestingAccount());284    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(5n);285286    // Create a token to be nested and nest287    await collectionFT.mint(charlie, 5n);288    await collectionFT.transfer(charlie, targetToken.nestingAccount(), 2n);289    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(7n);290  });291});292293describe('Negative Test: Nesting', () => {294  let alice: IKeyringPair;295  let bob: IKeyringPair;296297  before(async () => {298    await usingPlaygrounds(async (helper, privateKey) => {299      const donor = await privateKey({filename: __filename});300      [alice, bob] = await helper.arrange.createAccounts([100n, 50n], donor);301    });302  });303304  itSub('Disallows excessive token nesting', async ({helper}) => {305    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});306    let token = await collection.mintToken(alice);307308    const maxNestingLevel = 5;309310    // Create a nested-token matryoshka311    for (let i = 0; i < maxNestingLevel; i++) {312      token = await collection.mintToken(alice, token.nestingAccount());313    }314315    // The nesting depth is limited by `maxNestingLevel`316    await expect(collection.mintToken(alice, token.nestingAccount()))317      .to.be.rejectedWith(/structure\.DepthLimit/);318    expect(await token.getTopmostOwner()).to.be.deep.equal({Substrate: alice.address});319    expect(await token.getChildren()).to.be.length(0);320  });321322  // ---------- Admin ------------323324  itSub('Admin (NFT): disallows an Admin to operate nesting when only TokenOwner is allowed', async ({helper}) => {325    const collection = await helper.nft.mintCollection(alice, {permissions: {nesting: {tokenOwner: true}}});326    await collection.addAdmin(alice, {Substrate: bob.address});327    const targetToken = await collection.mintToken(alice);328329    // Try to create an immediately nested token as collection admin when it's disallowed330    await expect(collection.mintToken(bob, targetToken.nestingAccount()))331      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);332333    // Try to create a token to be nested and nest334    const newToken = await collection.mintToken(bob);335    await expect(newToken.nest(bob, targetToken))336      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);337338    expect(await targetToken.getChildren()).to.be.length(0);339    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: bob.address});340  });341342  itSub('Admin (NFT): disallows a Token Owner to operate nesting when only Admin is allowed', async ({helper}) => {343    const collection = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true, nesting: {collectionAdmin: true}}});344    const targetToken = await collection.mintToken(alice, {Substrate: bob.address});345    await collection.addToAllowList(alice, {Substrate: bob.address});346    await collection.addToAllowList(alice, targetToken.nestingAccount());347348    // Try to create a nested token as token owner when it's disallowed349    await expect(collection.mintToken(bob, targetToken.nestingAccount()))350      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);351352    // Try to create a token to be nested and nest353    const newToken = await collection.mintToken(bob);354    await expect(newToken.nest(bob, targetToken))355      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);356357    expect(await targetToken.getChildren()).to.be.length(0);358    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: bob.address});359  });360361  itSub('Admin (NFT): disallows an Admin to unnest someone else\'s token', async ({helper}) => {362    const collection = await helper.nft.mintCollection(alice, {limits: {ownerCanTransfer: true}, permissions: {access: 'AllowList', mintMode: true, nesting: {collectionAdmin: true}}});363    //await collection.addAdmin(alice, {Substrate: bob.address});364    const targetToken = await collection.mintToken(alice, {Substrate: bob.address});365    await collection.addToAllowList(alice, {Substrate: bob.address});366    await collection.addToAllowList(alice, targetToken.nestingAccount());367368    // Try to nest somebody else's token369    const newToken = await collection.mintToken(bob);370    await expect(newToken.nest(alice, targetToken))371      .to.be.rejectedWith(/common\.NoPermission/);372373    // Try to unnest a token belonging to someone else as collection admin374    const nestedToken = await collection.mintToken(alice, targetToken.nestingAccount());375    await expect(nestedToken.unnest(alice, targetToken, {Substrate: bob.address}))376      .to.be.rejectedWith(/common\.AddressNotInAllowlist/);377378    expect(await targetToken.getChildren()).to.be.length(1);379    expect(await nestedToken.getTopmostOwner()).to.be.deep.equal({Substrate: bob.address});380    expect(await nestedToken.getOwner()).to.be.deep.equal(targetToken.nestingAccount().toLowerCase());381  });382383  itSub('Admin (NFT): disallows an Admin to nest a token from an unlisted collection (Restricted nesting)', async ({helper}) => {384    const collectionA = await helper.nft.mintCollection(alice);385    const collectionB = await helper.nft.mintCollection(alice);386    await collectionA.setPermissions(alice, {nesting: {collectionAdmin: true, restricted: [collectionA.collectionId]}});387    const targetToken = await collectionA.mintToken(alice);388389    // Try to create a nested token from another collection390    await expect(collectionB.mintToken(alice, targetToken.nestingAccount()))391      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);392393    // Create a token in another collection yet to be nested and try to nest394    const newToken = await collectionB.mintToken(alice);395    await expect(newToken.nest(alice, targetToken))396      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);397398    expect(await targetToken.getChildren()).to.be.length(0);399    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: alice.address});400  });401402  // ---------- Non-Fungible ----------403404  itSub('NFT: disallows to nest token if nesting is disabled', async ({helper}) => {405    // Collection is implicitly not allowed nesting at creation406    const collection = await helper.nft.mintCollection(alice);407    const targetToken = await collection.mintToken(alice);408409    // Try to create a nested token as token owner when it's disallowed410    await expect(collection.mintToken(alice, targetToken.nestingAccount()))411      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);412413    // Try to create a token to be nested and nest414    const newToken = await collection.mintToken(alice);415    await expect(newToken.nest(alice, targetToken))416      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);417418    expect(await targetToken.getChildren()).to.be.length(0);419    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: alice.address});420  });421422  itSub('NFT: disallows a non-Owner to nest someone else\'s token', async ({helper}) => {423    const collection = await helper.nft.mintCollection(alice);424    const targetToken = await collection.mintToken(alice);425426    await collection.setPermissions(alice, {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true}});427    await collection.addToAllowList(alice, {Substrate: bob.address});428    await collection.addToAllowList(alice, targetToken.nestingAccount());429430    // Try to create a token to be nested and nest431    const newToken = await collection.mintToken(alice);432    await expect(newToken.nest(bob, targetToken)).to.be.rejectedWith(/common\.NoPermission/);433434    expect(await targetToken.getChildren()).to.be.length(0);435    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: alice.address});436  });437438  itSub('NFT: disallows a non-Owner to nest someone else\'s token (Restricted nesting)', async ({helper}) => {439    const collection = await helper.nft.mintCollection(alice);440    const targetToken = await collection.mintToken(alice);441442    await collection.setPermissions(alice, {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true}});443    await collection.addToAllowList(alice, {Substrate: bob.address});444    await collection.addToAllowList(alice, targetToken.nestingAccount());445446    const collectionB = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true}});447    await collectionB.addToAllowList(alice, {Substrate: bob.address});448    await collectionB.addToAllowList(alice, targetToken.nestingAccount());449450    // Try to create a token to be nested and nest451    const newToken = await collectionB.mintToken(alice);452    await expect(newToken.nest(bob, targetToken)).to.be.rejectedWith(/common\.NoPermission/);453454    expect(await targetToken.getChildren()).to.be.length(0);455    expect(await newToken.getOwner()).to.be.deep.equal({Substrate: alice.address});456  });457458  itSub('NFT: disallows to nest token in an unlisted collection', async ({helper}) => {459    // Create collection with restricted nesting -- even self is not allowed460    const collection = await helper.nft.mintCollection(alice, {permissions: {access: 'AllowList', mintMode: true, nesting: {tokenOwner: true, restricted: []}}});461    const targetToken = await collection.mintToken(alice, {Substrate: bob.address});462463    await collection.addToAllowList(alice, {Substrate: bob.address});464    await collection.addToAllowList(alice, targetToken.nestingAccount());465466    // Try to mint in own collection after allowlisting the accounts467    await expect(collection.mintToken(bob, targetToken.nestingAccount()))468      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);469  });470471  // ---------- Fungible ----------472473  itSub('Fungible: disallows to nest token if nesting is disabled', async ({helper}) => {474    const collectionNFT = await helper.nft.mintCollection(alice);475    const collectionFT = await helper.ft.mintCollection(alice);476    const targetToken = await collectionNFT.mintToken(alice);477478    // Try to create an immediately nested token479    await expect(collectionFT.mint(alice, 5n, targetToken.nestingAccount()))480      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);481482    // Try to create a token to be nested and nest483    await collectionFT.mint(alice, 5n);484    await expect(collectionFT.transfer(alice, targetToken.nestingAccount(), 2n))485      .to.be.rejectedWith(/common\.UserIsNotAllowedToNest/);486    expect(await collectionFT.getBalance({Substrate: alice.address})).to.be.equal(5n);487  });488489  itSub('Fungible: disallows a non-Owner to unnest someone else\'s token', async ({helper}) => {490    const collectionNFT = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true, tokenOwner: true}}});491    const collectionFT = await helper.ft.mintCollection(alice);492    const targetToken = await collectionNFT.mintToken(alice, {Substrate: bob.address});493494    // Nest some tokens as Alice into Bob's token495    await collectionFT.mint(alice, 5n, targetToken.nestingAccount());496497    // Try to pull it out498    await expect(collectionFT.transferFrom(alice, targetToken.nestingAccount(), {Substrate: bob.address}, 1n))499      .to.be.rejectedWith(/common\.ApprovedValueTooLow/);500    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(5n);501  });502503  itSub('Fungible: disallows a non-Owner to unnest someone else\'s token (Restricted nesting)', async ({helper}) => {504    const collectionNFT = await helper.nft.mintCollection(alice);505    const collectionFT = await helper.ft.mintCollection(alice);506    const targetToken = await collectionNFT.mintToken(alice, {Substrate: bob.address});507508    await collectionNFT.setPermissions(alice, {nesting: {collectionAdmin: true, tokenOwner: true, restricted: [collectionFT.collectionId]}});509510    // Nest some tokens as Alice into Bob's token511    await collectionFT.mint(alice, 5n, targetToken.nestingAccount());512513    // Try to pull it out as Alice still514    await expect(collectionFT.transferFrom(alice, targetToken.nestingAccount(), {Substrate: bob.address}, 1n))515      .to.be.rejectedWith(/common\.ApprovedValueTooLow/);516    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(5n);517  });518519  itSub('Fungible: disallows to nest token in an unlisted collection', async ({helper}) => {520    const collectionNFT = await helper.nft.mintCollection(alice, {permissions: {nesting: {collectionAdmin: true, tokenOwner: true, restricted: []}}});521    const collectionFT = await helper.ft.mintCollection(alice);522    const targetToken = await collectionNFT.mintToken(alice);523524    // Try to mint an immediately nested token525    await expect(collectionFT.mint(alice, 5n, targetToken.nestingAccount()))526      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);527528    // Mint a token and try to nest it529    await collectionFT.mint(alice, 5n);530    await expect(collectionFT.transfer(alice, targetToken.nestingAccount(), 1n))531      .to.be.rejectedWith(/common\.SourceCollectionIsNotAllowedToNest/);532533    expect(await collectionFT.getBalance(targetToken.nestingAccount())).to.be.equal(0n);534    expect(await collectionFT.getBalance({Substrate: alice.address})).to.be.equal(5n);535  });536});