git.delta.rocks / unique-network / refs/commits / c8ad2c279e20

difftreelog

Merge pull request #747 from UniqueNetwork/tests/refungible

ut-akuznetsov2022-12-07parents: #c07446f #38774eb.patch.diff
in: master
Transfer tests

14 files changed

modifiedpallets/fungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/fungible/src/lib.rs
+++ b/pallets/fungible/src/lib.rs
@@ -379,7 +379,7 @@
 		let balance_from = <Balance<T>>::get((collection.id, from))
 			.checked_sub(amount)
 			.ok_or(<CommonError<T>>::TokenValueTooLow)?;
-		let balance_to = if from != to {
+		let balance_to = if from != to && amount != 0 {
 			Some(
 				<Balance<T>>::get((collection.id, to))
 					.checked_add(amount)
@@ -391,16 +391,17 @@
 
 		// =========
 
-		<PalletStructure<T>>::nest_if_sent_to_token(
-			from.clone(),
-			to,
-			collection.id,
-			TokenId::default(),
-			nesting_budget,
-		)?;
-
 		if let Some(balance_to) = balance_to {
-			// from != to
+			// from != to && amount != 0
+
+			<PalletStructure<T>>::nest_if_sent_to_token(
+				from.clone(),
+				to,
+				collection.id,
+				TokenId::default(),
+				nesting_budget,
+			)?;
+
 			if balance_from == 0 {
 				<Balance<T>>::remove((collection.id, from));
 				<PalletStructure<T>>::unnest_if_nested(from, collection.id, TokenId::default());
modifiedpallets/nonfungible/src/common.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/common.rs
+++ b/pallets/nonfungible/src/common.rs
@@ -291,6 +291,7 @@
 				<CommonWeights<T>>::burn_item(),
 			)
 		} else {
+			<Pallet<T>>::check_token_immediate_ownership(self, token, &sender)?;
 			Ok(().into())
 		}
 	}
@@ -320,6 +321,7 @@
 				<CommonWeights<T>>::transfer(),
 			)
 		} else {
+			<Pallet<T>>::check_token_immediate_ownership(self, token, &from)?;
 			Ok(().into())
 		}
 	}
@@ -360,6 +362,8 @@
 				<CommonWeights<T>>::transfer_from(),
 			)
 		} else {
+			<Pallet<T>>::check_allowed(self, &sender, &from, token, nesting_budget)?;
+
 			Ok(().into())
 		}
 	}
@@ -380,6 +384,8 @@
 				<CommonWeights<T>>::burn_from(),
 			)
 		} else {
+			<Pallet<T>>::check_allowed(self, &sender, &from, token, nesting_budget)?;
+
 			Ok(().into())
 		}
 	}
modifiedpallets/nonfungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/nonfungible/src/lib.rs
+++ b/pallets/nonfungible/src/lib.rs
@@ -814,6 +814,20 @@
 		<PalletCommon<T>>::set_property_permission(collection, sender, permission)
 	}
 
+	pub fn check_token_immediate_ownership(
+		collection: &NonfungibleHandle<T>,
+		token: TokenId,
+		possible_owner: &T::CrossAccountId,
+	) -> DispatchResult {
+		let token_data =
+			<TokenData<T>>::get((collection.id, token)).ok_or(<CommonError<T>>::TokenNotFound)?;
+		ensure!(
+			&token_data.owner == possible_owner,
+			<CommonError<T>>::NoPermission
+		);
+		Ok(())
+	}
+
 	/// Transfer NFT token from one account to another.
 	///
 	/// `from` account stops being the owner and `to` account becomes the owner of the token.
modifiedpallets/refungible/src/erc.rsdiffbeforeafterboth
--- a/pallets/refungible/src/erc.rs
+++ b/pallets/refungible/src/erc.rs
@@ -34,6 +34,7 @@
 	CollectionHandle, CollectionPropertyPermissions, CommonCollectionOperations,
 	erc::{CommonEvmHandler, CollectionCall, static_property::key},
 	eth::EthCrossAccount,
+	Error as CommonError,
 };
 use pallet_evm::{account::CrossAccountId, PrecompileHandle};
 use pallet_evm_coder_substrate::{call, dispatch_to_evm};
@@ -508,6 +509,13 @@
 ) -> Result<()> {
 	collection.consume_store_reads(1)?;
 	let total_supply = <TotalSupply<T>>::get((collection.id, token));
+
+	if owner_balance == 0 {
+		return Err(dispatch_to_evm::<T>(
+			<CommonError<T>>::MustBeTokenOwner.into(),
+		));
+	}
+
 	if total_supply != owner_balance {
 		return Err("token has multiple owners".into());
 	}
modifiedpallets/refungible/src/lib.rsdiffbeforeafterboth
--- a/pallets/refungible/src/lib.rs
+++ b/pallets/refungible/src/lib.rs
@@ -452,6 +452,10 @@
 		token: TokenId,
 		amount: u128,
 	) -> DispatchResult {
+		if <Balance<T>>::get((collection.id, token, owner)) == 0 {
+			return Err(<CommonError<T>>::TokenValueTooLow.into());
+		}
+
 		let total_supply = <TotalSupply<T>>::get((collection.id, token))
 			.checked_sub(amount)
 			.ok_or(<CommonError<T>>::TokenValueTooLow)?;
@@ -739,12 +743,17 @@
 		<PalletCommon<T>>::ensure_correct_receiver(to)?;
 
 		let initial_balance_from = <Balance<T>>::get((collection.id, token, from));
+
+		if initial_balance_from == 0 {
+			return Err(<CommonError<T>>::TokenValueTooLow.into());
+		}
+
 		let updated_balance_from = initial_balance_from
 			.checked_sub(amount)
 			.ok_or(<CommonError<T>>::TokenValueTooLow)?;
 		let mut create_target = false;
 		let from_to_differ = from != to;
-		let updated_balance_to = if from != to {
+		let updated_balance_to = if from != to && amount != 0 {
 			let old_balance = <Balance<T>>::get((collection.id, token, to));
 			if old_balance == 0 {
 				create_target = true;
@@ -786,16 +795,17 @@
 
 		// =========
 
-		<PalletStructure<T>>::nest_if_sent_to_token(
-			from.clone(),
-			to,
-			collection.id,
-			token,
-			nesting_budget,
-		)?;
+		if let Some(updated_balance_to) = updated_balance_to {
+			// from != to && amount != 0
+
+			<PalletStructure<T>>::nest_if_sent_to_token(
+				from.clone(),
+				to,
+				collection.id,
+				token,
+				nesting_budget,
+			)?;
 
-		if let Some(updated_balance_to) = updated_balance_to {
-			// from != to
 			if updated_balance_from == 0 {
 				<Balance<T>>::remove((collection.id, token, from));
 				<PalletStructure<T>>::unnest_if_nested(from, collection.id, token);
modifiedtests/src/burnItem.test.tsdiffbeforeafterboth
--- a/tests/src/burnItem.test.ts
+++ b/tests/src/burnItem.test.ts
@@ -140,6 +140,31 @@
     await expect(token.burn(bob)).to.be.rejectedWith('common.NoPermission');
   });
 
+  itSub.ifWithPallets('RFT: cannot burn non-owned token pieces', [Pallets.ReFungible], async ({helper}) => {
+    const collection = await helper.rft.mintCollection(alice);
+    const aliceToken = await collection.mintToken(alice, 10n, {Substrate: alice.address});
+    const bobToken = await collection.mintToken(alice, 10n, {Substrate: bob.address});
+
+    // 1. Cannot burn non-owned token:
+    await expect(bobToken.burn(alice, 0n)).to.be.rejectedWith('common.TokenValueTooLow');
+    await expect(bobToken.burn(alice, 5n)).to.be.rejectedWith('common.TokenValueTooLow');
+    // 2. Cannot burn non-existing token:
+    await expect(helper.rft.burnToken(alice, 99999, 10)).to.be.rejectedWith('common.CollectionNotFound');
+    await expect(helper.rft.burnToken(alice, collection.collectionId, 99999)).to.be.rejectedWith('common.TokenValueTooLow');
+    // 3. Can burn zero amount of owned tokens (EIP-20)
+    await aliceToken.burn(alice, 0n);
+
+    // 4. Storage is not corrupted:
+    expect(await aliceToken.getTop10Owners()).to.deep.eq([{Substrate: alice.address}]);
+    expect(await bobToken.getTop10Owners()).to.deep.eq([{Substrate: bob.address}]);
+
+    // 4.1 Tokens can be transfered:
+    await aliceToken.transfer(alice, {Substrate: bob.address}, 10n);
+    await bobToken.transfer(bob, {Substrate: alice.address}, 10n);
+    expect(await aliceToken.getTop10Owners()).to.deep.eq([{Substrate: bob.address}]);
+    expect(await bobToken.getTop10Owners()).to.deep.eq([{Substrate: alice.address}]);
+  });
+
   itSub('Transfer a burned token', async ({helper}) => {
     const collection = await helper.nft.mintCollection(alice);
     const token = await collection.mintToken(alice);
@@ -155,4 +180,48 @@
     await expect(collection.burnTokens(alice, 11n)).to.be.rejectedWith('common.TokenValueTooLow');
     expect(await collection.getBalance({Substrate: alice.address})).to.eq(10n);
   });
+
+  itSub('Zero burn NFT', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(alice, {name: 'Coll', description: 'Desc', tokenPrefix: 'T'});
+    const tokenAlice = await collection.mintToken(alice, {Substrate: alice.address});
+    const tokenBob = await collection.mintToken(alice, {Substrate: bob.address});
+    
+    // 1. Zero burn of own tokens allowed:
+    await helper.executeExtrinsic(alice, 'api.tx.unique.burnItem', [collection.collectionId, tokenAlice.tokenId, 0]);
+    // 2. Zero burn of non-owned tokens not allowed:
+    await expect(helper.executeExtrinsic(alice, 'api.tx.unique.burnItem', [collection.collectionId, tokenBob.tokenId, 0])).to.be.rejectedWith('common.NoPermission');
+    // 3. Zero burn of non-existing tokens not allowed:
+    await expect(helper.executeExtrinsic(alice, 'api.tx.unique.burnItem', [collection.collectionId, 9999, 0])).to.be.rejectedWith('common.TokenNotFound');
+    expect(await tokenAlice.doesExist()).to.be.true;
+    expect(await tokenAlice.getOwner()).to.deep.eq({Substrate: alice.address});
+    expect(await tokenBob.getOwner()).to.deep.eq({Substrate: bob.address});
+    // 4. Storage is not corrupted:
+    await tokenAlice.transfer(alice, {Substrate: bob.address});
+    await tokenBob.transfer(bob, {Substrate: alice.address});
+    expect(await tokenAlice.getOwner()).to.deep.eq({Substrate: bob.address});
+    expect(await tokenBob.getOwner()).to.deep.eq({Substrate: alice.address});
+  });
+
+  itSub('zero burnFrom NFT', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(alice, {name: 'Zero', description: 'Zero transfer', tokenPrefix: 'TF'});
+    const notApprovedNft = await collection.mintToken(alice, {Substrate: bob.address});
+    const approvedNft = await collection.mintToken(alice, {Substrate: bob.address});
+    await approvedNft.approve(bob, {Substrate: alice.address});
+
+    // 1. Zero burnFrom of non-existing tokens not allowed:
+    await expect(helper.executeExtrinsic(alice, 'api.tx.unique.burnFrom', [collection.collectionId, {Substrate: bob.address}, 9999, 0])).to.be.rejectedWith('common.ApprovedValueTooLow');
+    // 2. Zero burnFrom of not approved tokens not allowed:
+    await expect(helper.executeExtrinsic(alice, 'api.tx.unique.burnFrom', [collection.collectionId, {Substrate: bob.address}, notApprovedNft.tokenId, 0])).to.be.rejectedWith('common.ApprovedValueTooLow');
+    // 3. Zero burnFrom of approved tokens allowed:
+    await helper.executeExtrinsic(alice, 'api.tx.unique.burnFrom', [collection.collectionId, {Substrate: bob.address}, approvedNft.tokenId, 0]);
+
+    // 4.1 approvedNft still approved:
+    expect(await approvedNft.isApproved({Substrate: alice.address})).to.be.true;
+    // 4.2 bob is still the owner:
+    expect(await approvedNft.getOwner()).to.deep.eq({Substrate: bob.address});
+    expect(await notApprovedNft.getOwner()).to.deep.eq({Substrate: bob.address});
+    // 4.3 Alice can burn approved nft:
+    await approvedNft.burnFrom(alice, {Substrate: bob.address});
+    expect(await approvedNft.doesExist()).to.be.false;
+  });
 });
modifiedtests/src/eth/fungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/fungible.test.ts
+++ b/tests/src/eth/fungible.test.ts
@@ -277,7 +277,7 @@
     }
   });
 
-  itEth('Cannot transferCross() more than have', async ({helper}) => {
+  ['transfer', 'transferCross'].map(testCase => itEth(`Cannot ${testCase} incorrect amount`, async ({helper}) => {
     const sender = await helper.eth.createAccountWithBalance(donor);
     const receiverEth = await helper.eth.createAccountWithBalance(donor);
     const receiverCrossEth = helper.ethCrossAccount.fromAddress(receiverEth);
@@ -289,8 +289,13 @@
     const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
     const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'ft', sender);
 
-    await expect(collectionEvm.methods.transferCross(receiverCrossEth, BALANCE_TO_TRANSFER).send({from: sender})).to.be.rejected;
-  });
+    // 1. Cannot transfer more than have
+    const receiver = testCase === 'transfer' ? receiverEth : receiverCrossEth;
+    await expect(collectionEvm.methods[testCase](receiver, BALANCE_TO_TRANSFER).send({from: sender})).to.be.rejected;
+    // 2. Zero transfer allowed (EIP-20):
+    await collectionEvm.methods[testCase](receiver, 0n).send({from: sender});
+  }));
+  
   
   itEth('Can perform transfer()', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
modifiedtests/src/eth/nonFungible.test.tsdiffbeforeafterboth
--- a/tests/src/eth/nonFungible.test.ts
+++ b/tests/src/eth/nonFungible.test.ts
@@ -517,6 +517,26 @@
       expect(receiverBalance).to.contain(tokenId);
     }
   });
+
+  ['transfer', 'transferCross'].map(testCase => itEth(`Cannot ${testCase} non-owned token`, async ({helper}) => {
+    const sender = await helper.eth.createAccountWithBalance(donor);
+    const tokenOwner = await helper.eth.createAccountWithBalance(donor);
+    const receiverSub = minter;
+    const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(minter);
+
+    const collection = await helper.nft.mintCollection(minter, {});
+    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);
+    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'nft', sender);
+
+    await collection.mintToken(minter, {Ethereum: sender});
+    const nonSendersToken = await collection.mintToken(minter, {Ethereum: tokenOwner});
+
+    // Cannot transferCross someone else's token:
+    const receiver = testCase === 'transfer' ? helper.address.substrateToEth(receiverSub.address) : receiverCrossSub;
+    await expect(collectionEvm.methods[testCase](receiver, nonSendersToken.tokenId).send({from: sender})).to.be.rejected;
+    // Cannot transfer token if it does not exist:
+    await expect(collectionEvm.methods[testCase](receiver, 999999).send({from: sender})).to.be.rejected;
+  }));
 });
 
 describe('NFT: Fees', () => {
modifiedtests/src/eth/reFungible.test.tsdiffbeforeafterboth
before · tests/src/eth/reFungible.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 {Pallets, requirePalletsOrSkip} from '../util';18import {expect, itEth, usingEthPlaygrounds} from './util';19import {IKeyringPair} from '@polkadot/types/types';2021describe('Refungible: Information getting', () => {22  let donor: IKeyringPair;2324  before(async function() {25    await usingEthPlaygrounds(async (helper, privateKey) => {26      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);2728      donor = await privateKey({filename: __filename});29    });30  });3132  itEth('totalSupply', async ({helper}) => {33    const caller = await helper.eth.createAccountWithBalance(donor);34    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'TotalSupply', '6', '6');35    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);3637    await contract.methods.mint(caller).send();3839    const totalSupply = await contract.methods.totalSupply().call();40    expect(totalSupply).to.equal('1');41  });4243  itEth('balanceOf', async ({helper}) => {44    const caller = await helper.eth.createAccountWithBalance(donor);45    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'BalanceOf', '6', '6');46    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);4748    await contract.methods.mint(caller).send();49    await contract.methods.mint(caller).send();50    await contract.methods.mint(caller).send();5152    const balance = await contract.methods.balanceOf(caller).call();53    expect(balance).to.equal('3');54  });5556  itEth('ownerOf', async ({helper}) => {57    const caller = await helper.eth.createAccountWithBalance(donor);58    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'OwnerOf', '6', '6');59    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);6061    const result = await contract.methods.mint(caller).send();62    const tokenId = result.events.Transfer.returnValues.tokenId;6364    const owner = await contract.methods.ownerOf(tokenId).call();65    expect(owner).to.equal(caller);66  });6768  itEth('ownerOf after burn', async ({helper}) => {69    const caller = await helper.eth.createAccountWithBalance(donor);70    const receiver = helper.eth.createAccount();71    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'OwnerOf-AfterBurn', '6', '6');72    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);7374    const result = await contract.methods.mint(caller).send();75    const tokenId = result.events.Transfer.returnValues.tokenId;76    const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);7778    await tokenContract.methods.repartition(2).send();79    await tokenContract.methods.transfer(receiver, 1).send();8081    await tokenContract.methods.burnFrom(caller, 1).send();8283    const owner = await contract.methods.ownerOf(tokenId).call();84    expect(owner).to.equal(receiver);85  });8687  itEth('ownerOf for partial ownership', async ({helper}) => {88    const caller = await helper.eth.createAccountWithBalance(donor);89    const receiver = helper.eth.createAccount();90    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Partial-OwnerOf', '6', '6');91    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);9293    const result = await contract.methods.mint(caller).send();94    const tokenId = result.events.Transfer.returnValues.tokenId;95    const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);9697    await tokenContract.methods.repartition(2).send();98    await tokenContract.methods.transfer(receiver, 1).send();99100    const owner = await contract.methods.ownerOf(tokenId).call();101    expect(owner).to.equal('0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF');102  });103});104105describe('Refungible: Plain calls', () => {106  let donor: IKeyringPair;107  let minter: IKeyringPair;108  let bob: IKeyringPair;109  let charlie: IKeyringPair;110111  before(async function() {112    await usingEthPlaygrounds(async (helper, privateKey) => {113      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);114115      donor = await privateKey({filename: __filename});116      [minter, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);117    });118  });119120  itEth('Can perform mint() & crossOwnerOf()', async ({helper}) => {121    const owner = await helper.eth.createAccountWithBalance(donor);122    const receiver = helper.eth.createAccount();123    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleRFTCollection(owner, 'Minty', '6', '6', '');124    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);125126    const result = await contract.methods.mintWithTokenURI(receiver, 'Test URI').send();127128    const event = result.events.Transfer;129    expect(event.address).to.equal(collectionAddress);130    expect(event.returnValues.from).to.equal('0x0000000000000000000000000000000000000000');131    expect(event.returnValues.to).to.equal(receiver);132    const tokenId = event.returnValues.tokenId;133    expect(tokenId).to.be.equal('1');134135    expect(await contract.methods.crossOwnerOf(tokenId).call()).to.be.like([receiver, '0']);136    expect(await contract.methods.tokenURI(tokenId).call()).to.be.equal('Test URI');137  });138139  itEth.skip('Can perform mintBulk()', async ({helper}) => {140    const owner = await helper.eth.createAccountWithBalance(donor);141    const receiver = helper.eth.createAccount();142    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleRFTCollection(owner, 'MintBulky', '6', '6', '');143    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);144145    {146      const nextTokenId = await contract.methods.nextTokenId().call();147      expect(nextTokenId).to.be.equal('1');148      const result = await contract.methods.mintBulkWithTokenURI(149        receiver,150        [151          [nextTokenId, 'Test URI 0'],152          [+nextTokenId + 1, 'Test URI 1'],153          [+nextTokenId + 2, 'Test URI 2'],154        ],155      ).send();156157      const events = result.events.Transfer;158      for (let i = 0; i < 2; i++) {159        const event = events[i];160        expect(event.address).to.equal(collectionAddress);161        expect(event.returnValues.from).to.equal('0x0000000000000000000000000000000000000000');162        expect(event.returnValues.to).to.equal(receiver);163        expect(event.returnValues.tokenId).to.equal(String(+nextTokenId + i));164      }165166      expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Test URI 0');167      expect(await contract.methods.tokenURI(+nextTokenId + 1).call()).to.be.equal('Test URI 1');168      expect(await contract.methods.tokenURI(+nextTokenId + 2).call()).to.be.equal('Test URI 2');169    }170  });171172  itEth('Can perform burn()', async ({helper}) => {173    const caller = await helper.eth.createAccountWithBalance(donor);174    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Burny', '6', '6');175    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);176177    const result = await contract.methods.mint(caller).send();178    const tokenId = result.events.Transfer.returnValues.tokenId;179    {180      const result = await contract.methods.burn(tokenId).send();181      const event = result.events.Transfer;182      expect(event.address).to.equal(collectionAddress);183      expect(event.returnValues.from).to.equal(caller);184      expect(event.returnValues.to).to.equal('0x0000000000000000000000000000000000000000');185      expect(event.returnValues.tokenId).to.equal(tokenId.toString());186    }187  });188189  itEth('Can perform transferFrom()', async ({helper}) => {190    const caller = await helper.eth.createAccountWithBalance(donor);191    const receiver = helper.eth.createAccount();192    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'TransferFromy', '6', '6');193    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);194195    const result = await contract.methods.mint(caller).send();196    const tokenId = result.events.Transfer.returnValues.tokenId;197198    const tokenAddress = helper.ethAddress.fromTokenId(collectionId, tokenId);199200    const tokenContract = helper.ethNativeContract.rftToken(tokenAddress, caller);201    await tokenContract.methods.repartition(15).send();202203    {204      const tokenEvents: any = [];205      tokenContract.events.allEvents((_: any, event: any) => {206        tokenEvents.push(event);207      });208      const result = await contract.methods.transferFrom(caller, receiver, tokenId).send();209      if (tokenEvents.length == 0) await helper.wait.newBlocks(1);210211      let event = result.events.Transfer;212      expect(event.address).to.equal(collectionAddress);213      expect(event.returnValues.from).to.equal(caller);214      expect(event.returnValues.to).to.equal(receiver);215      expect(event.returnValues.tokenId).to.equal(tokenId.toString());216217      event = tokenEvents[0];218      expect(event.address).to.equal(tokenAddress);219      expect(event.returnValues.from).to.equal(caller);220      expect(event.returnValues.to).to.equal(receiver);221      expect(event.returnValues.value).to.equal('15');222    }223224    {225      const balance = await contract.methods.balanceOf(receiver).call();226      expect(+balance).to.equal(1);227    }228229    {230      const balance = await contract.methods.balanceOf(caller).call();231      expect(+balance).to.equal(0);232    }233  });234235  // Soft-deprecated236  itEth('Can perform burnFrom()', async ({helper}) => {237    const collection = await helper.rft.mintCollection(minter, {name: 'A', description: 'B', tokenPrefix: 'C'});238239    const owner = await helper.eth.createAccountWithBalance(donor, 100n);240    const spender = await helper.eth.createAccountWithBalance(donor, 100n);241242    const token = await collection.mintToken(minter, 100n, {Ethereum: owner});243244    const address = helper.ethAddress.fromCollectionId(collection.collectionId);245    const contract = helper.ethNativeContract.collection(address, 'rft', spender, true);246247    const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, token.tokenId);248    const tokenContract = helper.ethNativeContract.rftToken(tokenAddress, owner);249    await tokenContract.methods.repartition(15).send();250    await tokenContract.methods.approve(spender, 15).send();251252    {253      const result = await contract.methods.burnFrom(owner, token.tokenId).send();254      const event = result.events.Transfer;255      expect(event).to.be.like({256        address: helper.ethAddress.fromCollectionId(collection.collectionId),257        event: 'Transfer',258        returnValues: {259          from: owner,260          to: '0x0000000000000000000000000000000000000000',261          tokenId: token.tokenId.toString(),262        },263      });264    }265266    expect(await collection.getTokenBalance(token.tokenId, {Ethereum: owner})).to.be.eq(0n);267  });268269  itEth('Can perform burnFromCross()', async ({helper}) => {270    const collection = await helper.rft.mintCollection(minter, {name: 'A', description: 'B', tokenPrefix: 'C'});271    272    const owner = bob;273    const spender = await helper.eth.createAccountWithBalance(donor, 100n);274275    const token = await collection.mintToken(minter, 100n, {Substrate: owner.address});276277    const address = helper.ethAddress.fromCollectionId(collection.collectionId);278    const contract = helper.ethNativeContract.collection(address, 'rft');279280    await token.repartition(owner, 15n);281    await token.approve(owner, {Ethereum: spender}, 15n);282283    {284      const ownerCross = helper.ethCrossAccount.fromKeyringPair(owner);285      const result = await contract.methods.burnFromCross(ownerCross, token.tokenId).send({from: spender});286      const event = result.events.Transfer;287      expect(event).to.be.like({288        address: helper.ethAddress.fromCollectionId(collection.collectionId),289        event: 'Transfer',290        returnValues: {291          from: helper.address.substrateToEth(owner.address),292          to: '0x0000000000000000000000000000000000000000',293          tokenId: token.tokenId.toString(),294        },295      });296    }297298    expect(await collection.getTokenBalance(token.tokenId, {Substrate: owner.address})).to.be.eq(0n);299  });300301  itEth('Can perform transferFromCross()', async ({helper}) => {302    const collection = await helper.rft.mintCollection(minter, {name: 'A', description: 'B', tokenPrefix: 'C'});303304    const owner = bob;305    const spender = await helper.eth.createAccountWithBalance(donor, 100n);306    const receiver = charlie;307308    const token = await collection.mintToken(minter, 100n, {Substrate: owner.address});309310    const address = helper.ethAddress.fromCollectionId(collection.collectionId);311    const contract = helper.ethNativeContract.collection(address, 'rft');312313    await token.repartition(owner, 15n);314    await token.approve(owner, {Ethereum: spender}, 15n);315316    {317      const ownerCross = helper.ethCrossAccount.fromKeyringPair(owner);318      const recieverCross = helper.ethCrossAccount.fromKeyringPair(receiver);319      const result = await contract.methods.transferFromCross(ownerCross, recieverCross, token.tokenId).send({from: spender});320      const event = result.events.Transfer;321      expect(event).to.be.like({322        address: helper.ethAddress.fromCollectionId(collection.collectionId),323        event: 'Transfer',324        returnValues: {325          from: helper.address.substrateToEth(owner.address),326          to: helper.address.substrateToEth(receiver.address),327          tokenId: token.tokenId.toString(),328        },329      });330    }331332    expect(await token.getTop10Owners()).to.be.like([{Substrate: receiver.address}]);333  });334335  itEth('Can perform transfer()', async ({helper}) => {336    const caller = await helper.eth.createAccountWithBalance(donor);337    const receiver = helper.eth.createAccount();338    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry', '6', '6');339    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);340341    const result = await contract.methods.mint(caller).send();342    const tokenId = result.events.Transfer.returnValues.tokenId;343344    {345      const result = await contract.methods.transfer(receiver, tokenId).send();346347      const event = result.events.Transfer;348      expect(event.address).to.equal(collectionAddress);349      expect(event.returnValues.from).to.equal(caller);350      expect(event.returnValues.to).to.equal(receiver);351      expect(event.returnValues.tokenId).to.equal(tokenId.toString());352    }353354    {355      const balance = await contract.methods.balanceOf(caller).call();356      expect(+balance).to.equal(0);357    }358359    {360      const balance = await contract.methods.balanceOf(receiver).call();361      expect(+balance).to.equal(1);362    }363  });364  365  itEth('Can perform transferCross()', async ({helper}) => {366    const sender = await helper.eth.createAccountWithBalance(donor);367    const receiverEth = await helper.eth.createAccountWithBalance(donor);368    const receiverCrossEth = helper.ethCrossAccount.fromAddress(receiverEth);369    const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(minter);370371    const collection = await helper.rft.mintCollection(minter, {});372    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);373    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'rft', sender);374375    const token = await collection.mintToken(minter, 50n, {Ethereum: sender});376377    {378      // Can transferCross to ethereum address:379      const result = await collectionEvm.methods.transferCross(receiverCrossEth, token.tokenId).send({from: sender});380      // Check events:381      const event = result.events.Transfer;382      expect(event.address).to.equal(collectionAddress);383      expect(event.returnValues.from).to.equal(sender);384      expect(event.returnValues.to).to.equal(receiverEth);385      expect(event.returnValues.tokenId).to.equal(token.tokenId.toString());386      // Sender's balance decreased:387      const senderBalance = await collectionEvm.methods.balanceOf(sender).call();388      expect(+senderBalance).to.equal(0);389      expect(await token.getBalance({Ethereum: sender})).to.eq(0n);390      // Receiver's balance increased:391      const receiverBalance = await collectionEvm.methods.balanceOf(receiverEth).call();392      expect(+receiverBalance).to.equal(1);393      expect(await token.getBalance({Ethereum: receiverEth})).to.eq(50n);394    }395    396    {397      // Can transferCross to substrate address:398      const substrateResult = await collectionEvm.methods.transferCross(receiverCrossSub, token.tokenId).send({from: receiverEth});399      // Check events:400      const event = substrateResult.events.Transfer;401      expect(event.address).to.be.equal(collectionAddress);402      expect(event.returnValues.from).to.be.equal(receiverEth);403      expect(event.returnValues.to).to.be.equal(helper.address.substrateToEth(minter.address));404      expect(event.returnValues.tokenId).to.be.equal(`${token.tokenId}`);405      // Sender's balance decreased:406      const senderBalance = await collectionEvm.methods.balanceOf(receiverEth).call();407      expect(+senderBalance).to.equal(0);408      expect(await token.getBalance({Ethereum: receiverEth})).to.eq(0n);409      // Receiver's balance increased:410      const receiverBalance = await helper.nft.getTokensByAddress(collection.collectionId, {Substrate: minter.address});411      expect(receiverBalance).to.contain(token.tokenId);412      expect(await token.getBalance({Substrate: minter.address})).to.eq(50n);413    }414  });415416  itEth.skip('Cannot transferCross with invalid params', async ({helper}) => {417    const sender = await helper.eth.createAccountWithBalance(donor);418    const tokenOwner = await helper.eth.createAccountWithBalance(donor);419    const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(minter);420421    const collection = await helper.rft.mintCollection(minter, {});422    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);423    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'rft', sender);424425    await collection.mintToken(minter, 50n, {Ethereum: sender});426    const notSendersToken = await collection.mintToken(minter, 50n, {Ethereum: tokenOwner});427    // Cannot transferCross someone else's token:428    await expect(collectionEvm.methods.transferCross(receiverCrossSub, notSendersToken.tokenId).send({from: sender})).to.be.rejected;429    // FIXME: (transaction successful): Cannot transfer token if it does not exist:430    await expect(collectionEvm.methods.transferCross(receiverCrossSub, 999999).send({from: sender})).to.be.rejected;431  });432433  itEth('transfer event on transfer from partial ownership to full ownership', async ({helper}) => {434    const caller = await helper.eth.createAccountWithBalance(donor);435    const receiver = helper.eth.createAccount();436    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry-Partial-to-Full', '6', '6');437    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);438439    const result = await contract.methods.mint(caller).send();440    const tokenId = result.events.Transfer.returnValues.tokenId;441442    const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);443444    await tokenContract.methods.repartition(2).send();445    await tokenContract.methods.transfer(receiver, 1).send();446447    const events: any = [];448    contract.events.allEvents((_: any, event: any) => {449      events.push(event);450    });451452    await tokenContract.methods.transfer(receiver, 1).send();453    if (events.length == 0) await helper.wait.newBlocks(1);454    const event = events[0];455456    expect(event.address).to.equal(collectionAddress);457    expect(event.returnValues.from).to.equal('0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF');458    expect(event.returnValues.to).to.equal(receiver);459    expect(event.returnValues.tokenId).to.equal(tokenId.toString());460  });461462  itEth('transfer event on transfer from full ownership to partial ownership', async ({helper}) => {463    const caller = await helper.eth.createAccountWithBalance(donor);464    const receiver = helper.eth.createAccount();465    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry-Full-to-Partial', '6', '6');466    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);467468    const result = await contract.methods.mint(caller).send();469    const tokenId = result.events.Transfer.returnValues.tokenId;470471    const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);472473    await tokenContract.methods.repartition(2).send();474475    const events: any = [];476    contract.events.allEvents((_: any, event: any) => {477      events.push(event);478    });479480    await tokenContract.methods.transfer(receiver, 1).send();481    if (events.length == 0) await helper.wait.newBlocks(1);482    const event = events[0];483484    expect(event.address).to.equal(collectionAddress);485    expect(event.returnValues.from).to.equal(caller);486    expect(event.returnValues.to).to.equal('0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF');487    expect(event.returnValues.tokenId).to.equal(tokenId.toString());488  });489});490491describe('RFT: Fees', () => {492  let donor: IKeyringPair;493494  before(async function() {495    await usingEthPlaygrounds(async (helper, privateKey) => {496      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);497498      donor = await privateKey({filename: __filename});499    });500  });501502  itEth('transferFrom() call fee is less than 0.2UNQ', async ({helper}) => {503    const caller = await helper.eth.createAccountWithBalance(donor);504    const receiver = helper.eth.createAccount();505    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Feeful-Transfer-From', '6', '6');506    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);507508    const result = await contract.methods.mint(caller).send();509    const tokenId = result.events.Transfer.returnValues.tokenId;510511    const cost = await helper.eth.recordCallFee(caller, () => contract.methods.transferFrom(caller, receiver, tokenId).send());512    expect(cost < BigInt(0.2 * Number(helper.balance.getOneTokenNominal())));513    expect(cost > 0n);514  });515516  itEth('transfer() call fee is less than 0.2UNQ', async ({helper}) => {517    const caller = await helper.eth.createAccountWithBalance(donor);518    const receiver = helper.eth.createAccount();519    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Feeful-Transfer', '6', '6');520    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);521522    const result = await contract.methods.mint(caller).send();523    const tokenId = result.events.Transfer.returnValues.tokenId;524525    const cost = await helper.eth.recordCallFee(caller, () => contract.methods.transfer(receiver, tokenId).send());526    expect(cost < BigInt(0.2 * Number(helper.balance.getOneTokenNominal())));527    expect(cost > 0n);528  });529});530531describe('Common metadata', () => {532  let donor: IKeyringPair;533  let alice: IKeyringPair;534535  before(async function() {536    await usingEthPlaygrounds(async (helper, privateKey) => {537      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);538539      donor = await privateKey({filename: __filename});540      [alice] = await helper.arrange.createAccounts([20n], donor);541    });542  });543544  itEth('Returns collection name', async ({helper}) => {545    const caller = helper.eth.createAccount();546    const tokenPropertyPermissions = [{547      key: 'URI',548      permission: {549        mutable: true,550        collectionAdmin: true,551        tokenOwner: false,552      },553    }];554    const collection = await helper.rft.mintCollection(555      alice,556      {557        name: 'Leviathan',558        tokenPrefix: '11',559        properties: [{key: 'ERC721Metadata', value: '1'}],560        tokenPropertyPermissions,561      },562    );563564    const contract = helper.ethNativeContract.collectionById(collection.collectionId, 'rft', caller);565    const name = await contract.methods.name().call();566    expect(name).to.equal('Leviathan');567  });568569  itEth('Returns symbol name', async ({helper}) => {570    const caller = await helper.eth.createAccountWithBalance(donor);571    const tokenPropertyPermissions = [{572      key: 'URI',573      permission: {574        mutable: true,575        collectionAdmin: true,576        tokenOwner: false,577      },578    }];579    const {collectionId} = await helper.rft.mintCollection(580      alice,581      {582        name: 'Leviathan',583        tokenPrefix: '12',584        properties: [{key: 'ERC721Metadata', value: '1'}],585        tokenPropertyPermissions,586      },587    );588589    const contract = helper.ethNativeContract.collectionById(collectionId, 'rft', caller);590    const symbol = await contract.methods.symbol().call();591    expect(symbol).to.equal('12');592  });593});
after · tests/src/eth/reFungible.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 {Pallets, requirePalletsOrSkip} from '../util';18import {expect, itEth, usingEthPlaygrounds} from './util';19import {IKeyringPair} from '@polkadot/types/types';2021describe('Refungible: Information getting', () => {22  let donor: IKeyringPair;2324  before(async function() {25    await usingEthPlaygrounds(async (helper, privateKey) => {26      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);2728      donor = await privateKey({filename: __filename});29    });30  });3132  itEth('totalSupply', async ({helper}) => {33    const caller = await helper.eth.createAccountWithBalance(donor);34    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'TotalSupply', '6', '6');35    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);3637    await contract.methods.mint(caller).send();3839    const totalSupply = await contract.methods.totalSupply().call();40    expect(totalSupply).to.equal('1');41  });4243  itEth('balanceOf', async ({helper}) => {44    const caller = await helper.eth.createAccountWithBalance(donor);45    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'BalanceOf', '6', '6');46    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);4748    await contract.methods.mint(caller).send();49    await contract.methods.mint(caller).send();50    await contract.methods.mint(caller).send();5152    const balance = await contract.methods.balanceOf(caller).call();53    expect(balance).to.equal('3');54  });5556  itEth('ownerOf', async ({helper}) => {57    const caller = await helper.eth.createAccountWithBalance(donor);58    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'OwnerOf', '6', '6');59    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);6061    const result = await contract.methods.mint(caller).send();62    const tokenId = result.events.Transfer.returnValues.tokenId;6364    const owner = await contract.methods.ownerOf(tokenId).call();65    expect(owner).to.equal(caller);66  });6768  itEth('ownerOf after burn', async ({helper}) => {69    const caller = await helper.eth.createAccountWithBalance(donor);70    const receiver = helper.eth.createAccount();71    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'OwnerOf-AfterBurn', '6', '6');72    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);7374    const result = await contract.methods.mint(caller).send();75    const tokenId = result.events.Transfer.returnValues.tokenId;76    const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);7778    await tokenContract.methods.repartition(2).send();79    await tokenContract.methods.transfer(receiver, 1).send();8081    await tokenContract.methods.burnFrom(caller, 1).send();8283    const owner = await contract.methods.ownerOf(tokenId).call();84    expect(owner).to.equal(receiver);85  });8687  itEth('ownerOf for partial ownership', async ({helper}) => {88    const caller = await helper.eth.createAccountWithBalance(donor);89    const receiver = helper.eth.createAccount();90    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Partial-OwnerOf', '6', '6');91    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);9293    const result = await contract.methods.mint(caller).send();94    const tokenId = result.events.Transfer.returnValues.tokenId;95    const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);9697    await tokenContract.methods.repartition(2).send();98    await tokenContract.methods.transfer(receiver, 1).send();99100    const owner = await contract.methods.ownerOf(tokenId).call();101    expect(owner).to.equal('0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF');102  });103});104105describe('Refungible: Plain calls', () => {106  let donor: IKeyringPair;107  let minter: IKeyringPair;108  let bob: IKeyringPair;109  let charlie: IKeyringPair;110111  before(async function() {112    await usingEthPlaygrounds(async (helper, privateKey) => {113      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);114115      donor = await privateKey({filename: __filename});116      [minter, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);117    });118  });119120  itEth('Can perform mint() & crossOwnerOf()', async ({helper}) => {121    const owner = await helper.eth.createAccountWithBalance(donor);122    const receiver = helper.eth.createAccount();123    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleRFTCollection(owner, 'Minty', '6', '6', '');124    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);125126    const result = await contract.methods.mintWithTokenURI(receiver, 'Test URI').send();127128    const event = result.events.Transfer;129    expect(event.address).to.equal(collectionAddress);130    expect(event.returnValues.from).to.equal('0x0000000000000000000000000000000000000000');131    expect(event.returnValues.to).to.equal(receiver);132    const tokenId = event.returnValues.tokenId;133    expect(tokenId).to.be.equal('1');134135    expect(await contract.methods.crossOwnerOf(tokenId).call()).to.be.like([receiver, '0']);136    expect(await contract.methods.tokenURI(tokenId).call()).to.be.equal('Test URI');137  });138139  itEth.skip('Can perform mintBulk()', async ({helper}) => {140    const owner = await helper.eth.createAccountWithBalance(donor);141    const receiver = helper.eth.createAccount();142    const {collectionAddress} = await helper.eth.createERC721MetadataCompatibleRFTCollection(owner, 'MintBulky', '6', '6', '');143    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', owner);144145    {146      const nextTokenId = await contract.methods.nextTokenId().call();147      expect(nextTokenId).to.be.equal('1');148      const result = await contract.methods.mintBulkWithTokenURI(149        receiver,150        [151          [nextTokenId, 'Test URI 0'],152          [+nextTokenId + 1, 'Test URI 1'],153          [+nextTokenId + 2, 'Test URI 2'],154        ],155      ).send();156157      const events = result.events.Transfer;158      for (let i = 0; i < 2; i++) {159        const event = events[i];160        expect(event.address).to.equal(collectionAddress);161        expect(event.returnValues.from).to.equal('0x0000000000000000000000000000000000000000');162        expect(event.returnValues.to).to.equal(receiver);163        expect(event.returnValues.tokenId).to.equal(String(+nextTokenId + i));164      }165166      expect(await contract.methods.tokenURI(nextTokenId).call()).to.be.equal('Test URI 0');167      expect(await contract.methods.tokenURI(+nextTokenId + 1).call()).to.be.equal('Test URI 1');168      expect(await contract.methods.tokenURI(+nextTokenId + 2).call()).to.be.equal('Test URI 2');169    }170  });171172  itEth('Can perform burn()', async ({helper}) => {173    const caller = await helper.eth.createAccountWithBalance(donor);174    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Burny', '6', '6');175    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);176177    const result = await contract.methods.mint(caller).send();178    const tokenId = result.events.Transfer.returnValues.tokenId;179    {180      const result = await contract.methods.burn(tokenId).send();181      const event = result.events.Transfer;182      expect(event.address).to.equal(collectionAddress);183      expect(event.returnValues.from).to.equal(caller);184      expect(event.returnValues.to).to.equal('0x0000000000000000000000000000000000000000');185      expect(event.returnValues.tokenId).to.equal(tokenId.toString());186    }187  });188189  itEth('Can perform transferFrom()', async ({helper}) => {190    const caller = await helper.eth.createAccountWithBalance(donor);191    const receiver = helper.eth.createAccount();192    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'TransferFromy', '6', '6');193    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);194195    const result = await contract.methods.mint(caller).send();196    const tokenId = result.events.Transfer.returnValues.tokenId;197198    const tokenAddress = helper.ethAddress.fromTokenId(collectionId, tokenId);199200    const tokenContract = helper.ethNativeContract.rftToken(tokenAddress, caller);201    await tokenContract.methods.repartition(15).send();202203    {204      const tokenEvents: any = [];205      tokenContract.events.allEvents((_: any, event: any) => {206        tokenEvents.push(event);207      });208      const result = await contract.methods.transferFrom(caller, receiver, tokenId).send();209      if (tokenEvents.length == 0) await helper.wait.newBlocks(1);210211      let event = result.events.Transfer;212      expect(event.address).to.equal(collectionAddress);213      expect(event.returnValues.from).to.equal(caller);214      expect(event.returnValues.to).to.equal(receiver);215      expect(event.returnValues.tokenId).to.equal(tokenId.toString());216217      event = tokenEvents[0];218      expect(event.address).to.equal(tokenAddress);219      expect(event.returnValues.from).to.equal(caller);220      expect(event.returnValues.to).to.equal(receiver);221      expect(event.returnValues.value).to.equal('15');222    }223224    {225      const balance = await contract.methods.balanceOf(receiver).call();226      expect(+balance).to.equal(1);227    }228229    {230      const balance = await contract.methods.balanceOf(caller).call();231      expect(+balance).to.equal(0);232    }233  });234235  // Soft-deprecated236  itEth('Can perform burnFrom()', async ({helper}) => {237    const collection = await helper.rft.mintCollection(minter, {name: 'A', description: 'B', tokenPrefix: 'C'});238239    const owner = await helper.eth.createAccountWithBalance(donor, 100n);240    const spender = await helper.eth.createAccountWithBalance(donor, 100n);241242    const token = await collection.mintToken(minter, 100n, {Ethereum: owner});243244    const address = helper.ethAddress.fromCollectionId(collection.collectionId);245    const contract = helper.ethNativeContract.collection(address, 'rft', spender, true);246247    const tokenAddress = helper.ethAddress.fromTokenId(collection.collectionId, token.tokenId);248    const tokenContract = helper.ethNativeContract.rftToken(tokenAddress, owner);249    await tokenContract.methods.repartition(15).send();250    await tokenContract.methods.approve(spender, 15).send();251252    {253      const result = await contract.methods.burnFrom(owner, token.tokenId).send();254      const event = result.events.Transfer;255      expect(event).to.be.like({256        address: helper.ethAddress.fromCollectionId(collection.collectionId),257        event: 'Transfer',258        returnValues: {259          from: owner,260          to: '0x0000000000000000000000000000000000000000',261          tokenId: token.tokenId.toString(),262        },263      });264    }265266    expect(await collection.getTokenBalance(token.tokenId, {Ethereum: owner})).to.be.eq(0n);267  });268269  itEth('Can perform burnFromCross()', async ({helper}) => {270    const collection = await helper.rft.mintCollection(minter, {name: 'A', description: 'B', tokenPrefix: 'C'});271    272    const owner = bob;273    const spender = await helper.eth.createAccountWithBalance(donor, 100n);274275    const token = await collection.mintToken(minter, 100n, {Substrate: owner.address});276277    const address = helper.ethAddress.fromCollectionId(collection.collectionId);278    const contract = helper.ethNativeContract.collection(address, 'rft');279280    await token.repartition(owner, 15n);281    await token.approve(owner, {Ethereum: spender}, 15n);282283    {284      const ownerCross = helper.ethCrossAccount.fromKeyringPair(owner);285      const result = await contract.methods.burnFromCross(ownerCross, token.tokenId).send({from: spender});286      const event = result.events.Transfer;287      expect(event).to.be.like({288        address: helper.ethAddress.fromCollectionId(collection.collectionId),289        event: 'Transfer',290        returnValues: {291          from: helper.address.substrateToEth(owner.address),292          to: '0x0000000000000000000000000000000000000000',293          tokenId: token.tokenId.toString(),294        },295      });296    }297298    expect(await collection.getTokenBalance(token.tokenId, {Substrate: owner.address})).to.be.eq(0n);299  });300301  itEth('Can perform transferFromCross()', async ({helper}) => {302    const collection = await helper.rft.mintCollection(minter, {name: 'A', description: 'B', tokenPrefix: 'C'});303304    const owner = bob;305    const spender = await helper.eth.createAccountWithBalance(donor, 100n);306    const receiver = charlie;307308    const token = await collection.mintToken(minter, 100n, {Substrate: owner.address});309310    const address = helper.ethAddress.fromCollectionId(collection.collectionId);311    const contract = helper.ethNativeContract.collection(address, 'rft');312313    await token.repartition(owner, 15n);314    await token.approve(owner, {Ethereum: spender}, 15n);315316    {317      const ownerCross = helper.ethCrossAccount.fromKeyringPair(owner);318      const recieverCross = helper.ethCrossAccount.fromKeyringPair(receiver);319      const result = await contract.methods.transferFromCross(ownerCross, recieverCross, token.tokenId).send({from: spender});320      const event = result.events.Transfer;321      expect(event).to.be.like({322        address: helper.ethAddress.fromCollectionId(collection.collectionId),323        event: 'Transfer',324        returnValues: {325          from: helper.address.substrateToEth(owner.address),326          to: helper.address.substrateToEth(receiver.address),327          tokenId: token.tokenId.toString(),328        },329      });330    }331332    expect(await token.getTop10Owners()).to.be.like([{Substrate: receiver.address}]);333  });334335  itEth('Can perform transfer()', async ({helper}) => {336    const caller = await helper.eth.createAccountWithBalance(donor);337    const receiver = helper.eth.createAccount();338    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry', '6', '6');339    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);340341    const result = await contract.methods.mint(caller).send();342    const tokenId = result.events.Transfer.returnValues.tokenId;343344    {345      const result = await contract.methods.transfer(receiver, tokenId).send();346347      const event = result.events.Transfer;348      expect(event.address).to.equal(collectionAddress);349      expect(event.returnValues.from).to.equal(caller);350      expect(event.returnValues.to).to.equal(receiver);351      expect(event.returnValues.tokenId).to.equal(tokenId.toString());352    }353354    {355      const balance = await contract.methods.balanceOf(caller).call();356      expect(+balance).to.equal(0);357    }358359    {360      const balance = await contract.methods.balanceOf(receiver).call();361      expect(+balance).to.equal(1);362    }363  });364  365  itEth('Can perform transferCross()', async ({helper}) => {366    const sender = await helper.eth.createAccountWithBalance(donor);367    const receiverEth = await helper.eth.createAccountWithBalance(donor);368    const receiverCrossEth = helper.ethCrossAccount.fromAddress(receiverEth);369    const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(minter);370371    const collection = await helper.rft.mintCollection(minter, {});372    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);373    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'rft', sender);374375    const token = await collection.mintToken(minter, 50n, {Ethereum: sender});376377    {378      // Can transferCross to ethereum address:379      const result = await collectionEvm.methods.transferCross(receiverCrossEth, token.tokenId).send({from: sender});380      // Check events:381      const event = result.events.Transfer;382      expect(event.address).to.equal(collectionAddress);383      expect(event.returnValues.from).to.equal(sender);384      expect(event.returnValues.to).to.equal(receiverEth);385      expect(event.returnValues.tokenId).to.equal(token.tokenId.toString());386      // Sender's balance decreased:387      const senderBalance = await collectionEvm.methods.balanceOf(sender).call();388      expect(+senderBalance).to.equal(0);389      expect(await token.getBalance({Ethereum: sender})).to.eq(0n);390      // Receiver's balance increased:391      const receiverBalance = await collectionEvm.methods.balanceOf(receiverEth).call();392      expect(+receiverBalance).to.equal(1);393      expect(await token.getBalance({Ethereum: receiverEth})).to.eq(50n);394    }395    396    {397      // Can transferCross to substrate address:398      const substrateResult = await collectionEvm.methods.transferCross(receiverCrossSub, token.tokenId).send({from: receiverEth});399      // Check events:400      const event = substrateResult.events.Transfer;401      expect(event.address).to.be.equal(collectionAddress);402      expect(event.returnValues.from).to.be.equal(receiverEth);403      expect(event.returnValues.to).to.be.equal(helper.address.substrateToEth(minter.address));404      expect(event.returnValues.tokenId).to.be.equal(`${token.tokenId}`);405      // Sender's balance decreased:406      const senderBalance = await collectionEvm.methods.balanceOf(receiverEth).call();407      expect(+senderBalance).to.equal(0);408      expect(await token.getBalance({Ethereum: receiverEth})).to.eq(0n);409      // Receiver's balance increased:410      const receiverBalance = await helper.nft.getTokensByAddress(collection.collectionId, {Substrate: minter.address});411      expect(receiverBalance).to.contain(token.tokenId);412      expect(await token.getBalance({Substrate: minter.address})).to.eq(50n);413    }414  });415416  ['transfer', 'transferCross'].map(testCase => itEth(`Cannot ${testCase} non-owned token`, async ({helper}) => {417    const sender = await helper.eth.createAccountWithBalance(donor);418    const tokenOwner = await helper.eth.createAccountWithBalance(donor);419    const receiverSub = minter;420    const receiverCrossSub = helper.ethCrossAccount.fromKeyringPair(minter);421422    const collection = await helper.rft.mintCollection(minter, {});423    const collectionAddress = helper.ethAddress.fromCollectionId(collection.collectionId);424    const collectionEvm = helper.ethNativeContract.collection(collectionAddress, 'rft', sender);425426    await collection.mintToken(minter, 50n, {Ethereum: sender});427    const nonSendersToken = await collection.mintToken(minter, 50n, {Ethereum: tokenOwner});428429    // Cannot transferCross someone else's token:430    const receiver = testCase === 'transfer' ? helper.address.substrateToEth(receiverSub.address) : receiverCrossSub;431    await expect(collectionEvm.methods[testCase](receiver, nonSendersToken.tokenId).send({from: sender})).to.be.rejected;432    // Cannot transfer token if it does not exist:433    await expect(collectionEvm.methods[testCase](receiver, 999999).send({from: sender})).to.be.rejected;434  }));435436  itEth('transfer event on transfer from partial ownership to full ownership', async ({helper}) => {437    const caller = await helper.eth.createAccountWithBalance(donor);438    const receiver = helper.eth.createAccount();439    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry-Partial-to-Full', '6', '6');440    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);441442    const result = await contract.methods.mint(caller).send();443    const tokenId = result.events.Transfer.returnValues.tokenId;444445    const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);446447    await tokenContract.methods.repartition(2).send();448    await tokenContract.methods.transfer(receiver, 1).send();449450    const events: any = [];451    contract.events.allEvents((_: any, event: any) => {452      events.push(event);453    });454455    await tokenContract.methods.transfer(receiver, 1).send();456    if (events.length == 0) await helper.wait.newBlocks(1);457    const event = events[0];458459    expect(event.address).to.equal(collectionAddress);460    expect(event.returnValues.from).to.equal('0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF');461    expect(event.returnValues.to).to.equal(receiver);462    expect(event.returnValues.tokenId).to.equal(tokenId.toString());463  });464465  itEth('transfer event on transfer from full ownership to partial ownership', async ({helper}) => {466    const caller = await helper.eth.createAccountWithBalance(donor);467    const receiver = helper.eth.createAccount();468    const {collectionId, collectionAddress} = await helper.eth.createRFTCollection(caller, 'Transferry-Full-to-Partial', '6', '6');469    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);470471    const result = await contract.methods.mint(caller).send();472    const tokenId = result.events.Transfer.returnValues.tokenId;473474    const tokenContract = helper.ethNativeContract.rftTokenById(collectionId, tokenId, caller);475476    await tokenContract.methods.repartition(2).send();477478    const events: any = [];479    contract.events.allEvents((_: any, event: any) => {480      events.push(event);481    });482483    await tokenContract.methods.transfer(receiver, 1).send();484    if (events.length == 0) await helper.wait.newBlocks(1);485    const event = events[0];486487    expect(event.address).to.equal(collectionAddress);488    expect(event.returnValues.from).to.equal(caller);489    expect(event.returnValues.to).to.equal('0xFFfFfFffFFfffFFfFFfFFFFFffFFFffffFfFFFfF');490    expect(event.returnValues.tokenId).to.equal(tokenId.toString());491  });492});493494describe('RFT: Fees', () => {495  let donor: IKeyringPair;496497  before(async function() {498    await usingEthPlaygrounds(async (helper, privateKey) => {499      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);500501      donor = await privateKey({filename: __filename});502    });503  });504505  itEth('transferFrom() call fee is less than 0.2UNQ', async ({helper}) => {506    const caller = await helper.eth.createAccountWithBalance(donor);507    const receiver = helper.eth.createAccount();508    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Feeful-Transfer-From', '6', '6');509    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);510511    const result = await contract.methods.mint(caller).send();512    const tokenId = result.events.Transfer.returnValues.tokenId;513514    const cost = await helper.eth.recordCallFee(caller, () => contract.methods.transferFrom(caller, receiver, tokenId).send());515    expect(cost < BigInt(0.2 * Number(helper.balance.getOneTokenNominal())));516    expect(cost > 0n);517  });518519  itEth('transfer() call fee is less than 0.2UNQ', async ({helper}) => {520    const caller = await helper.eth.createAccountWithBalance(donor);521    const receiver = helper.eth.createAccount();522    const {collectionAddress} = await helper.eth.createRFTCollection(caller, 'Feeful-Transfer', '6', '6');523    const contract = helper.ethNativeContract.collection(collectionAddress, 'rft', caller);524525    const result = await contract.methods.mint(caller).send();526    const tokenId = result.events.Transfer.returnValues.tokenId;527528    const cost = await helper.eth.recordCallFee(caller, () => contract.methods.transfer(receiver, tokenId).send());529    expect(cost < BigInt(0.2 * Number(helper.balance.getOneTokenNominal())));530    expect(cost > 0n);531  });532});533534describe('Common metadata', () => {535  let donor: IKeyringPair;536  let alice: IKeyringPair;537538  before(async function() {539    await usingEthPlaygrounds(async (helper, privateKey) => {540      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);541542      donor = await privateKey({filename: __filename});543      [alice] = await helper.arrange.createAccounts([20n], donor);544    });545  });546547  itEth('Returns collection name', async ({helper}) => {548    const caller = helper.eth.createAccount();549    const tokenPropertyPermissions = [{550      key: 'URI',551      permission: {552        mutable: true,553        collectionAdmin: true,554        tokenOwner: false,555      },556    }];557    const collection = await helper.rft.mintCollection(558      alice,559      {560        name: 'Leviathan',561        tokenPrefix: '11',562        properties: [{key: 'ERC721Metadata', value: '1'}],563        tokenPropertyPermissions,564      },565    );566567    const contract = helper.ethNativeContract.collectionById(collection.collectionId, 'rft', caller);568    const name = await contract.methods.name().call();569    expect(name).to.equal('Leviathan');570  });571572  itEth('Returns symbol name', async ({helper}) => {573    const caller = await helper.eth.createAccountWithBalance(donor);574    const tokenPropertyPermissions = [{575      key: 'URI',576      permission: {577        mutable: true,578        collectionAdmin: true,579        tokenOwner: false,580      },581    }];582    const {collectionId} = await helper.rft.mintCollection(583      alice,584      {585        name: 'Leviathan',586        tokenPrefix: '12',587        properties: [{key: 'ERC721Metadata', value: '1'}],588        tokenPropertyPermissions,589      },590    );591592    const contract = helper.ethNativeContract.collectionById(collectionId, 'rft', caller);593    const symbol = await contract.methods.symbol().call();594    expect(symbol).to.equal('12');595  });596});
modifiedtests/src/eth/reFungibleToken.test.tsdiffbeforeafterboth
--- a/tests/src/eth/reFungibleToken.test.ts
+++ b/tests/src/eth/reFungibleToken.test.ts
@@ -227,6 +227,46 @@
     }
   });
 
+  [
+    'transfer',
+    // 'transferCross', // TODO
+  ].map(testCase => 
+    itEth(`Cannot ${testCase}() non-owned token`, async ({helper}) => {
+      const owner = await helper.eth.createAccountWithBalance(donor);
+      const receiver = await helper.eth.createAccountWithBalance(donor);
+      const collection = await helper.rft.mintCollection(alice);
+      const rftOwner = await collection.mintToken(alice, 10n, {Ethereum: owner});
+      const rftReceiver = await collection.mintToken(alice, 10n, {Ethereum: receiver});
+      const tokenIdNonExist = 9999999;
+  
+      const tokenAddress1 = helper.ethAddress.fromTokenId(collection.collectionId, rftOwner.tokenId);
+      const tokenAddress2 = helper.ethAddress.fromTokenId(collection.collectionId, rftReceiver.tokenId);
+      const tokenAddressNonExist = helper.ethAddress.fromTokenId(collection.collectionId, tokenIdNonExist);
+      const tokenEvmOwner = helper.ethNativeContract.rftToken(tokenAddress1, owner);
+      const tokenEvmReceiver = helper.ethNativeContract.rftToken(tokenAddress2, owner);
+      const tokenEvmNonExist = helper.ethNativeContract.rftToken(tokenAddressNonExist, owner);
+      
+      // 1. Can transfer zero amount (EIP-20):
+      await tokenEvmOwner.methods[testCase](receiver, 0).send({from: owner});
+      // 2. Cannot transfer non-owned token:
+      await expect(tokenEvmReceiver.methods[testCase](owner, 0).send({from: owner})).to.be.rejected;
+      await expect(tokenEvmReceiver.methods[testCase](owner, 5).send({from: owner})).to.be.rejected;
+      // 3. Cannot transfer non-existing token:
+      await expect(tokenEvmNonExist.methods[testCase](owner, 0).send({from: owner})).to.be.rejected;
+      await expect(tokenEvmNonExist.methods[testCase](owner, 5).send({from: owner})).to.be.rejected;
+
+      // 4. Storage is not corrupted:
+      expect(await rftOwner.getTop10Owners()).to.deep.eq([{Ethereum: owner.toLowerCase()}]);
+      expect(await rftReceiver.getTop10Owners()).to.deep.eq([{Ethereum: receiver.toLowerCase()}]);
+      expect(await helper.rft.getTokenTop10Owners(collection.collectionId, tokenIdNonExist)).to.deep.eq([]); // TODO
+
+      // 4.1 Tokens can be transferred:
+      await tokenEvmOwner.methods[testCase](receiver, 10).send({from: owner});
+      await tokenEvmReceiver.methods[testCase](owner, 10).send({from: receiver});
+      expect(await rftOwner.getTop10Owners()).to.deep.eq([{Ethereum: receiver.toLowerCase()}]);
+      expect(await rftReceiver.getTop10Owners()).to.deep.eq([{Ethereum: owner.toLowerCase()}]);
+    }));
+
   itEth('Can perform repartition()', async ({helper}) => {
     const owner = await helper.eth.createAccountWithBalance(donor);
     const receiver = await helper.eth.createAccountWithBalance(donor);
modifiedtests/src/fungible.test.tsdiffbeforeafterboth
--- a/tests/src/fungible.test.ts
+++ b/tests/src/fungible.test.ts
@@ -15,7 +15,7 @@
 // along with Unique Network. If not, see <http://www.gnu.org/licenses/>.
 
 import {IKeyringPair} from '@polkadot/types/types';
-import {itSub, usingPlaygrounds, expect} from './util';
+import {itSub, usingPlaygrounds, expect, requirePalletsOrSkip, Pallets} from './util';
 
 const U128_MAX = (1n << 128n) - 1n;
 
@@ -145,3 +145,42 @@
     expect(await collection.getBalance(ethAcc)).to.be.equal(10n);
   });
 });
+
+describe('Fungible negative tests', () => {
+  let donor: IKeyringPair;
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
+  let charlie: IKeyringPair;
+
+  before(async function() {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      requirePalletsOrSkip(this, helper, [Pallets.Fungible]);
+
+      donor = await privateKey({filename: __filename});
+      [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
+    });
+  });
+
+  itSub('Cannot transfer incorrect amount of tokens', async ({helper}) => {
+    const collection = await helper.ft.mintCollection(alice, {name: 'test', description: 'test', tokenPrefix: 'test'});
+    const nonExistingCollection = helper.ft.getCollectionObject(99999);
+    await collection.mint(alice, 10n, {Substrate: bob.address});
+
+    // 1. Alice cannot transfer more than 0 tokens if balance low:
+    await expect(collection.transfer(alice, {Substrate: charlie.address}, 1n)).to.be.rejectedWith('common.TokenValueTooLow');
+    await expect(collection.transfer(alice, {Substrate: charlie.address}, 100n)).to.be.rejectedWith('common.TokenValueTooLow');
+    
+    // 2. Alice cannot transfer non-existing token:
+    await expect(nonExistingCollection.transfer(alice, {Substrate: charlie.address}, 0n)).to.be.rejectedWith('common.CollectionNotFound');
+    await expect(nonExistingCollection.transfer(alice, {Substrate: charlie.address}, 1n)).to.be.rejectedWith('common.CollectionNotFound');
+    
+    // 3. Zero transfer allowed (EIP-20):
+    await collection.transfer(bob, {Substrate: charlie.address}, 0n);
+    // 3.1 even if the balance = 0
+    await collection.transfer(alice, {Substrate: charlie.address}, 0n);
+
+    expect(await collection.getBalance({Substrate: alice.address})).to.eq(0n);
+    expect(await collection.getBalance({Substrate: bob.address})).to.eq(10n);
+    expect(await collection.getBalance({Substrate: charlie.address})).to.eq(0n);
+  });
+});
modifiedtests/src/refungible.test.tsdiffbeforeafterboth
--- a/tests/src/refungible.test.ts
+++ b/tests/src/refungible.test.ts
@@ -255,3 +255,43 @@
   });
 });
 
+describe('Refungible negative tests', () => {
+  let donor: IKeyringPair;
+  let alice: IKeyringPair;
+  let bob: IKeyringPair;
+  let charlie: IKeyringPair;
+
+  before(async function() {
+    await usingPlaygrounds(async (helper, privateKey) => {
+      requirePalletsOrSkip(this, helper, [Pallets.ReFungible]);
+
+      donor = await privateKey({filename: __filename});
+      [alice, bob, charlie] = await helper.arrange.createAccounts([100n, 100n, 100n], donor);
+    });
+  });
+
+  itSub('Cannot transfer incorrect amount of token pieces', async ({helper}) => {
+    const collection = await helper.rft.mintCollection(alice, {name: 'test', description: 'test', tokenPrefix: 'test'});
+    const tokenAlice = await collection.mintToken(alice, 10n, {Substrate: alice.address});
+    const tokenBob = await collection.mintToken(alice, 10n, {Substrate: bob.address});
+
+    // 1. Alice cannot transfer Bob's token:
+    await expect(tokenBob.transfer(alice, {Substrate: charlie.address}, 0n)).to.be.rejectedWith('common.TokenValueTooLow');
+    await expect(tokenBob.transfer(alice, {Substrate: charlie.address}, 1n)).to.be.rejectedWith('common.TokenValueTooLow');
+    await expect(tokenBob.transfer(alice, {Substrate: charlie.address}, 10n)).to.be.rejectedWith('common.TokenValueTooLow');
+    await expect(tokenBob.transfer(alice, {Substrate: charlie.address}, 100n)).to.be.rejectedWith('common.TokenValueTooLow');
+    
+    // 2. Alice cannot transfer non-existing token:
+    await expect(collection.transferToken(alice, 100, {Substrate: charlie.address}, 0n)).to.be.rejectedWith('common.TokenValueTooLow');
+    await expect(collection.transferToken(alice, 100, {Substrate: charlie.address}, 1n)).to.be.rejectedWith('common.TokenValueTooLow');
+
+    // 3. Zero transfer allowed (EIP-20):
+    await tokenAlice.transfer(alice, {Substrate: charlie.address}, 0n);
+
+    expect(await tokenAlice.getTop10Owners()).to.deep.eq([{Substrate: alice.address}]);
+    expect(await tokenBob.getTop10Owners()).to.deep.eq([{Substrate: bob.address}]);
+    expect(await tokenAlice.getBalance({Substrate: alice.address})).to.eq(10n);
+    expect(await tokenBob.getBalance({Substrate: bob.address})).to.eq(10n);
+    expect(await tokenBob.getBalance({Substrate: charlie.address})).to.eq(0n);
+  });
+});
modifiedtests/src/transfer.test.tsdiffbeforeafterboth
--- a/tests/src/transfer.test.ts
+++ b/tests/src/transfer.test.ts
@@ -122,6 +122,7 @@
     });
   });
 
+
   itSub('[nft] Transfer with not existed collection_id', async ({helper}) => {
     const collectionId = (1 << 32) - 1;
     await expect(helper.nft.transferToken(alice, collectionId, 1, {Substrate: bob.address}))
@@ -191,6 +192,25 @@
       .to.be.rejectedWith(/common\.TokenValueTooLow/);
   });
 
+  itSub('Zero transfer NFT', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(alice, {name: 'Transfer-Neg-3-NFT', description: '', tokenPrefix: 'T'});
+    const tokenAlice = await collection.mintToken(alice, {Substrate: alice.address});
+    const tokenBob = await collection.mintToken(alice, {Substrate: bob.address});
+    // 1. Zero transfer of own tokens allowed:
+    await helper.executeExtrinsic(alice, 'api.tx.unique.transfer', [{Substrate: bob.address}, collection.collectionId, tokenAlice.tokenId, 0]);
+    // 2. Zero transfer of non-owned tokens not allowed:
+    await expect(helper.executeExtrinsic(alice, 'api.tx.unique.transfer', [{Substrate: alice.address}, collection.collectionId, tokenBob.tokenId, 0])).to.be.rejectedWith('common.NoPermission');
+    // 3. Zero transfer of non-existing tokens not allowed:
+    await expect(helper.executeExtrinsic(alice, 'api.tx.unique.transfer', [{Substrate: alice.address}, collection.collectionId, 10, 0])).to.be.rejectedWith('common.TokenNotFound');
+    expect(await tokenAlice.getOwner()).to.deep.eq({Substrate: alice.address});
+    expect(await tokenBob.getOwner()).to.deep.eq({Substrate: bob.address});
+    // 4. Storage is not corrupted:
+    await tokenAlice.transfer(alice, {Substrate: bob.address});
+    await tokenBob.transfer(bob, {Substrate: alice.address});
+    expect(await tokenAlice.getOwner()).to.deep.eq({Substrate: bob.address});
+    expect(await tokenBob.getOwner()).to.deep.eq({Substrate: alice.address});
+  });
+
   itSub('[nft] Transfer with deleted item_id', async ({helper}) => {
     const collection = await helper.nft.mintCollection(alice, {name: 'Transfer-Neg-3-NFT', description: '', tokenPrefix: 'T'});
     const nft = await collection.mintToken(alice);
modifiedtests/src/transferFrom.test.tsdiffbeforeafterboth
--- a/tests/src/transferFrom.test.ts
+++ b/tests/src/transferFrom.test.ts
@@ -349,4 +349,27 @@
       {Substrate: charlie.address},
     )).to.be.rejectedWith(/common\.ApprovedValueTooLow/);
   });
+
+  itSub('zero transfer NFT', async ({helper}) => {
+    const collection = await helper.nft.mintCollection(alice, {name: 'Zero', description: 'Zero transfer', tokenPrefix: 'TF'});
+    const notApprovedNft = await collection.mintToken(alice, {Substrate: bob.address});
+    const approvedNft = await collection.mintToken(alice, {Substrate: bob.address});
+    await approvedNft.approve(bob, {Substrate: alice.address});
+
+    // 1. Cannot zero transferFrom (non-existing token)
+    await expect(helper.executeExtrinsic(alice, 'api.tx.unique.transferFrom', [{Substrate: bob.address}, {Substrate: alice.address}, collection.collectionId, 9999, 0])).to.be.rejectedWith('common.ApprovedValueTooLow');
+    // 2. Cannot zero transferFrom (not approved token)
+    await expect(helper.executeExtrinsic(alice, 'api.tx.unique.transferFrom', [{Substrate: bob.address}, {Substrate: alice.address}, collection.collectionId, notApprovedNft.tokenId, 0])).to.be.rejectedWith('common.ApprovedValueTooLow');
+    // 3. Can zero transferFrom (approved token):
+    await helper.executeExtrinsic(alice, 'api.tx.unique.transferFrom', [{Substrate: bob.address}, {Substrate: alice.address}, collection.collectionId, approvedNft.tokenId, 0]);
+
+    // 4.1 approvedNft still approved:
+    expect(await approvedNft.isApproved({Substrate: alice.address})).to.be.true;
+    // 4.2 bob is still the owner:
+    expect(await approvedNft.getOwner()).to.deep.eq({Substrate: bob.address});
+    expect(await notApprovedNft.getOwner()).to.deep.eq({Substrate: bob.address});
+    // 4.3 Alice can transfer approved nft:
+    await approvedNft.transferFrom(alice, {Substrate: bob.address}, {Substrate: alice.address});
+    expect(await approvedNft.getOwner()).to.deep.eq({Substrate: alice.address});
+  });
 });