import { artifacts as proxyArtifacts, ERC1155ProxyWrapper, ERC20ProxyContract, ERC20Wrapper, ERC721ProxyContract, ERC721Wrapper, MultiAssetProxyContract, StaticCallProxyContract, TestStaticCallTargetContract, } from '@0x/contracts-asset-proxy'; import { ERC1155MintableContract } from '@0x/contracts-erc1155'; import { artifacts as erc20Artifacts, DummyERC20TokenContract, DummyERC20TokenTransferEventArgs, DummyNoReturnERC20TokenContract, } from '@0x/contracts-erc20'; import { DummyERC721TokenContract } from '@0x/contracts-erc721'; import { chaiSetup, constants, ERC20BalancesByOwner, getLatestBlockTimestampAsync, increaseTimeAndMineBlockAsync, OrderFactory, OrderStatus, provider, txDefaults, web3Wrapper, } from '@0x/contracts-test-utils'; import { BlockchainLifecycle } from '@0x/dev-utils'; import { assetDataUtils, ExchangeRevertErrors, LibMathRevertErrors, orderHashUtils } from '@0x/order-utils'; import { RevertReason, SignatureType, SignedOrder } from '@0x/types'; import { BigNumber, providerUtils, StringRevertError } from '@0x/utils'; import { Web3Wrapper } from '@0x/web3-wrapper'; import * as chai from 'chai'; import { LogWithDecodedArgs } from 'ethereum-types'; import ethUtil = require('ethereumjs-util'); import * as _ from 'lodash'; import { Erc1155Wrapper } from '../../erc1155/lib/src'; import { artifacts, constants as exchangeConstants, ExchangeCancelEventArgs, ExchangeContract, ExchangeWrapper, ReentrantERC20TokenContract, TestStaticCallReceiverContract, } from '../src'; chaiSetup.configure(); const expect = chai.expect; const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); // tslint:disable:no-unnecessary-type-assertion describe('Exchange core', () => { let chainId: number; let makerAddress: string; let owner: string; let takerAddress: string; let feeRecipientAddress: string; let erc20TokenA: DummyERC20TokenContract; let erc20TokenB: DummyERC20TokenContract; let feeToken: DummyERC20TokenContract; let erc721Token: DummyERC721TokenContract; let noReturnErc20Token: DummyNoReturnERC20TokenContract; let reentrantErc20Token: ReentrantERC20TokenContract; let exchange: ExchangeContract; let erc20Proxy: ERC20ProxyContract; let erc721Proxy: ERC721ProxyContract; let erc1155Proxy: ERC721ProxyContract; let multiAssetProxy: MultiAssetProxyContract; let staticCallProxy: StaticCallProxyContract; let staticCallTarget: TestStaticCallTargetContract; let maliciousWallet: TestStaticCallReceiverContract; let maliciousValidator: TestStaticCallReceiverContract; let erc1155Contract: ERC1155MintableContract; let signedOrder: SignedOrder; let erc20Balances: ERC20BalancesByOwner; let exchangeWrapper: ExchangeWrapper; let erc20Wrapper: ERC20Wrapper; let erc721Wrapper: ERC721Wrapper; let erc1155Wrapper: Erc1155Wrapper; let erc1155ProxyWrapper: ERC1155ProxyWrapper; let orderFactory: OrderFactory; let erc721MakerAssetIds: BigNumber[]; let erc721TakerAssetIds: BigNumber[]; let erc1155FungibleTokens: BigNumber[]; let erc1155NonFungibleTokensOwnedByMaker: BigNumber[]; let erc1155NonFungibleTokensOwnedByTaker: BigNumber[]; let defaultMakerAssetAddress: string; let defaultTakerAssetAddress: string; let defaultFeeAssetAddress: string; before(async () => { await blockchainLifecycle.startAsync(); }); after(async () => { await blockchainLifecycle.revertAsync(); }); before(async () => { chainId = await providerUtils.getChainIdAsync(provider); const accounts = await web3Wrapper.getAvailableAddressesAsync(); const usedAddresses = ([owner, makerAddress, takerAddress, feeRecipientAddress] = _.slice(accounts, 0, 4)); erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); erc1155ProxyWrapper = new ERC1155ProxyWrapper(provider, usedAddresses, owner); // Deploy AssetProxies, Exchange, tokens, and malicious contracts erc20Proxy = await erc20Wrapper.deployProxyAsync(); erc721Proxy = await erc721Wrapper.deployProxyAsync(); multiAssetProxy = await MultiAssetProxyContract.deployFrom0xArtifactAsync( proxyArtifacts.MultiAssetProxy, provider, txDefaults, ); staticCallProxy = await StaticCallProxyContract.deployFrom0xArtifactAsync( proxyArtifacts.StaticCallProxy, provider, txDefaults, ); const numDummyErc20ToDeploy = 3; [erc20TokenA, erc20TokenB, feeToken] = await erc20Wrapper.deployDummyTokensAsync( numDummyErc20ToDeploy, constants.DUMMY_TOKEN_DECIMALS, ); [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); erc1155Proxy = await erc1155ProxyWrapper.deployProxyAsync(); [erc1155Wrapper] = await erc1155ProxyWrapper.deployDummyContractsAsync(); erc1155Contract = erc1155Wrapper.getContract(); exchange = await ExchangeContract.deployFrom0xArtifactAsync( artifacts.Exchange, provider, txDefaults, new BigNumber(chainId), ); maliciousWallet = maliciousValidator = await TestStaticCallReceiverContract.deployFrom0xArtifactAsync( artifacts.TestStaticCallReceiver, provider, txDefaults, ); reentrantErc20Token = await ReentrantERC20TokenContract.deployFrom0xArtifactAsync( artifacts.ReentrantERC20Token, provider, txDefaults, exchange.address, ); // Configure ERC20Proxy await erc20Proxy.addAuthorizedAddress.awaitTransactionSuccessAsync(exchange.address, { from: owner }); await erc20Proxy.addAuthorizedAddress.awaitTransactionSuccessAsync(multiAssetProxy.address, { from: owner }); // Configure ERC721Proxy await erc721Proxy.addAuthorizedAddress.awaitTransactionSuccessAsync(exchange.address, { from: owner }); await erc721Proxy.addAuthorizedAddress.awaitTransactionSuccessAsync(multiAssetProxy.address, { from: owner }); // Configure ERC1155Proxy await erc1155Proxy.addAuthorizedAddress.awaitTransactionSuccessAsync(exchange.address, { from: owner }); await erc1155Proxy.addAuthorizedAddress.awaitTransactionSuccessAsync(multiAssetProxy.address, { from: owner }); // Configure MultiAssetProxy await multiAssetProxy.addAuthorizedAddress.awaitTransactionSuccessAsync(exchange.address, { from: owner }); await multiAssetProxy.registerAssetProxy.awaitTransactionSuccessAsync(erc20Proxy.address, { from: owner }); await multiAssetProxy.registerAssetProxy.awaitTransactionSuccessAsync(erc721Proxy.address, { from: owner }); await multiAssetProxy.registerAssetProxy.awaitTransactionSuccessAsync(staticCallProxy.address, { from: owner }); // Configure Exchange exchangeWrapper = new ExchangeWrapper(exchange, provider); await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, owner); await exchangeWrapper.registerAssetProxyAsync(erc1155Proxy.address, owner); await exchangeWrapper.registerAssetProxyAsync(multiAssetProxy.address, owner); await exchangeWrapper.registerAssetProxyAsync(staticCallProxy.address, owner); // Configure ERC20 tokens await erc20Wrapper.setBalancesAndAllowancesAsync(); // Configure ERC721 tokens await erc721Wrapper.setBalancesAndAllowancesAsync(); const erc721Balances = await erc721Wrapper.getBalancesAsync(); erc721MakerAssetIds = erc721Balances[makerAddress][erc721Token.address]; erc721TakerAssetIds = erc721Balances[takerAddress][erc721Token.address]; // Configure ERC1155 tokens await erc1155ProxyWrapper.setBalancesAndAllowancesAsync(); erc1155FungibleTokens = erc1155ProxyWrapper.getFungibleTokenIds(); const nonFungibleTokens = erc1155ProxyWrapper.getNonFungibleTokenIds(); const tokenBalances = await erc1155ProxyWrapper.getBalancesAsync(); erc1155NonFungibleTokensOwnedByMaker = []; erc1155NonFungibleTokensOwnedByTaker = []; _.each(nonFungibleTokens, (nonFungibleToken: BigNumber) => { const nonFungibleTokenAsString = nonFungibleToken.toString(); const nonFungibleTokenHeldByMaker = tokenBalances.nonFungible[makerAddress][erc1155Contract.address][nonFungibleTokenAsString][0]; erc1155NonFungibleTokensOwnedByMaker.push(nonFungibleTokenHeldByMaker); const nonFungibleTokenHeldByTaker = tokenBalances.nonFungible[takerAddress][erc1155Contract.address][nonFungibleTokenAsString][0]; erc1155NonFungibleTokensOwnedByTaker.push(nonFungibleTokenHeldByTaker); }); // Configure order defaults defaultMakerAssetAddress = erc20TokenA.address; defaultTakerAssetAddress = erc20TokenB.address; defaultFeeAssetAddress = feeToken.address; const defaultOrderParams = { ...constants.STATIC_ORDER_PARAMS, makerAddress, feeRecipientAddress, makerAssetData: assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerAssetAddress), makerFeeAssetData: assetDataUtils.encodeERC20AssetData(defaultFeeAssetAddress), takerFeeAssetData: assetDataUtils.encodeERC20AssetData(defaultFeeAssetAddress), domain: { verifyingContractAddress: exchange.address, chainId, }, }; const privateKey = constants.TESTRPC_PRIVATE_KEYS[accounts.indexOf(makerAddress)]; orderFactory = new OrderFactory(privateKey, defaultOrderParams); }); beforeEach(async () => { await blockchainLifecycle.startAsync(); }); afterEach(async () => { await blockchainLifecycle.revertAsync(); }); describe('fillOrder', () => { beforeEach(async () => { erc20Balances = await erc20Wrapper.getBalancesAsync(); signedOrder = await orderFactory.newSignedOrderAsync(); }); const reentrancyTest = (functionNames: string[]) => { _.forEach(functionNames, (functionName: string, functionId: number) => { const description = `should not allow fillOrder to reenter the Exchange contract via ${functionName}`; it(description, async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData: await assetDataUtils.encodeERC20AssetData(reentrantErc20Token.address), }); await reentrantErc20Token.setReentrantFunction.awaitTransactionSuccessAsync(functionId); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(RevertReason.ReentrancyIllegal); }); }); }; describe('fillOrder reentrancy tests', () => reentrancyTest(exchangeConstants.FUNCTIONS_WITH_MUTEX)); it('should throw if signature is invalid', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), }); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); const v = ethUtil.toBuffer(signedOrder.signature.slice(0, 4)); const invalidR = ethUtil.sha3('invalidR'); const invalidS = ethUtil.sha3('invalidS'); const signatureType = ethUtil.toBuffer(`0x${signedOrder.signature.slice(-2)}`); const invalidSigBuff = Buffer.concat([v, invalidR, invalidS, signatureType]); const invalidSigHex = `0x${invalidSigBuff.toString('hex')}`; signedOrder.signature = invalidSigHex; const expectedError = new ExchangeRevertErrors.SignatureError( ExchangeRevertErrors.SignatureErrorCode.BadSignature, orderHashHex, signedOrder.makerAddress, invalidSigHex, ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(expectedError); }); it('should throw if fully filled', async () => { signedOrder = await orderFactory.newSignedOrderAsync(); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const expectedError = new ExchangeRevertErrors.OrderStatusError(orderHashHex, OrderStatus.FullyFilled); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(expectedError); }); it('should revert if `isValidSignature` tries to update state when SignatureType=Wallet', async () => { const maliciousMakerAddress = maliciousWallet.address; await erc20TokenA.setBalance.awaitTransactionSuccessAsync( maliciousMakerAddress, constants.INITIAL_ERC20_BALANCE, ); await maliciousWallet.approveERC20.awaitTransactionSuccessAsync( erc20TokenA.address, erc20Proxy.address, constants.INITIAL_ERC20_ALLOWANCE, ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAddress: maliciousMakerAddress, makerFee: constants.ZERO_AMOUNT, }); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); signedOrder.signature = `0x0${SignatureType.Wallet}`; const expectedError = new ExchangeRevertErrors.SignatureWalletError( orderHashHex, signedOrder.makerAddress, signedOrder.signature, constants.NULL_BYTES, ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(expectedError); }); it('should revert if `isValidSignature` tries to update state when SignatureType=Validator', async () => { const isApproved = true; await exchange.setSignatureValidatorApproval.awaitTransactionSuccessAsync( maliciousValidator.address, isApproved, { from: makerAddress }, ); signedOrder.signature = `${maliciousValidator.address}0${SignatureType.Validator}`; const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.SignatureValidatorError( orderHashHex, signedOrder.makerAddress, signedOrder.signature, constants.NULL_BYTES, ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(expectedError); }); it('should not emit transfer events for transfers where from == to', async () => { const txReceipt = await exchangeWrapper.fillOrderAsync(signedOrder, makerAddress); const logs = txReceipt.logs; const transferLogs = _.filter( logs, log => (log as LogWithDecodedArgs).event === 'Transfer', ); expect(transferLogs.length).to.be.equal(2); expect((transferLogs[0] as LogWithDecodedArgs).address).to.be.equal( feeToken.address, ); expect((transferLogs[0] as LogWithDecodedArgs).args._from).to.be.equal( makerAddress, ); expect((transferLogs[0] as LogWithDecodedArgs).args._to).to.be.equal( feeRecipientAddress, ); expect( (transferLogs[0] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.makerFee); expect((transferLogs[1] as LogWithDecodedArgs).address).to.be.equal( feeToken.address, ); expect((transferLogs[1] as LogWithDecodedArgs).args._from).to.be.equal( makerAddress, ); expect((transferLogs[1] as LogWithDecodedArgs).args._to).to.be.equal( feeRecipientAddress, ); expect( (transferLogs[1] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.takerFee); }); it('should throw if order is expired', async () => { const currentTimestamp = await getLatestBlockTimestampAsync(); signedOrder = await orderFactory.newSignedOrderAsync({ expirationTimeSeconds: new BigNumber(currentTimestamp).minus(10), }); const orderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.OrderStatusError(orderHash, OrderStatus.Expired); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(expectedError); }); }); describe('Fill transfer ordering', () => { it('should allow the maker to exchange assets received by the taker', async () => { // Set maker/taker assetData to the same asset const takerAssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); const takerAssetAmount = new BigNumber(1); const makerAssetData = assetDataUtils.encodeMultiAssetData([takerAssetAmount], [takerAssetData]); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount: takerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); // Set maker balance to 0 so that the asset must be received by the taker in order for the fill to succeed await erc20TokenA.setBalance.awaitTransactionSuccessAsync(makerAddress, constants.ZERO_AMOUNT, { from: owner, }); const txReceipt = await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const logs = txReceipt.logs; const transferLogs = _.filter( logs, log => (log as LogWithDecodedArgs).event === 'Transfer', ); expect(transferLogs.length).to.be.equal(2); expect((transferLogs[0] as LogWithDecodedArgs).address).to.be.equal( erc20TokenA.address, ); expect((transferLogs[0] as LogWithDecodedArgs).args._from).to.be.equal( takerAddress, ); expect((transferLogs[0] as LogWithDecodedArgs).args._to).to.be.equal( makerAddress, ); expect( (transferLogs[0] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.takerAssetAmount); expect((transferLogs[1] as LogWithDecodedArgs).address).to.be.equal( erc20TokenA.address, ); expect((transferLogs[1] as LogWithDecodedArgs).args._from).to.be.equal( makerAddress, ); expect((transferLogs[1] as LogWithDecodedArgs).args._to).to.be.equal( takerAddress, ); expect( (transferLogs[1] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.makerAssetAmount); }); it('should allow the taker to pay fees with an asset that received by the maker', async () => { const makerAssetData = assetDataUtils.encodeERC20AssetData(erc20TokenA.address); signedOrder = await orderFactory.newSignedOrderAsync({ takerFeeAssetData: makerAssetData, makerFee: constants.ZERO_AMOUNT, takerFee: new BigNumber(1), }); // Set taker balance to 0 so that the asset must be received by the maker in order for the fill to succeed await erc20TokenA.setBalance.awaitTransactionSuccessAsync(takerAddress, constants.ZERO_AMOUNT, { from: owner, }); const txReceipt = await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const logs = txReceipt.logs; const transferLogs = _.filter( logs, log => (log as LogWithDecodedArgs).event === 'Transfer', ); expect(transferLogs.length).to.be.equal(3); expect((transferLogs[0] as LogWithDecodedArgs).address).to.be.equal( erc20TokenB.address, ); expect((transferLogs[0] as LogWithDecodedArgs).args._from).to.be.equal( takerAddress, ); expect((transferLogs[0] as LogWithDecodedArgs).args._to).to.be.equal( makerAddress, ); expect( (transferLogs[0] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.takerAssetAmount); expect((transferLogs[1] as LogWithDecodedArgs).address).to.be.equal( erc20TokenA.address, ); expect((transferLogs[1] as LogWithDecodedArgs).args._from).to.be.equal( makerAddress, ); expect((transferLogs[1] as LogWithDecodedArgs).args._to).to.be.equal( takerAddress, ); expect( (transferLogs[1] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.makerAssetAmount); expect((transferLogs[2] as LogWithDecodedArgs).address).to.be.equal( erc20TokenA.address, ); expect((transferLogs[2] as LogWithDecodedArgs).args._from).to.be.equal( takerAddress, ); expect((transferLogs[2] as LogWithDecodedArgs).args._to).to.be.equal( feeRecipientAddress, ); expect( (transferLogs[2] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.takerFee); }); it('should allow the maker to pay fees with an asset that received by the taker', async () => { const takerAssetData = assetDataUtils.encodeERC20AssetData(erc20TokenB.address); signedOrder = await orderFactory.newSignedOrderAsync({ makerFeeAssetData: takerAssetData, makerFee: new BigNumber(1), takerFee: constants.ZERO_AMOUNT, }); // Set maker balance to 0 so that the asset must be received by the taker in order for the fill to succeed await erc20TokenB.setBalance.awaitTransactionSuccessAsync(makerAddress, constants.ZERO_AMOUNT, { from: owner, }); const txReceipt = await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const logs = txReceipt.logs; const transferLogs = _.filter( logs, log => (log as LogWithDecodedArgs).event === 'Transfer', ); expect(transferLogs.length).to.be.equal(3); expect((transferLogs[0] as LogWithDecodedArgs).address).to.be.equal( erc20TokenB.address, ); expect((transferLogs[0] as LogWithDecodedArgs).args._from).to.be.equal( takerAddress, ); expect((transferLogs[0] as LogWithDecodedArgs).args._to).to.be.equal( makerAddress, ); expect( (transferLogs[0] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.takerAssetAmount); expect((transferLogs[1] as LogWithDecodedArgs).address).to.be.equal( erc20TokenA.address, ); expect((transferLogs[1] as LogWithDecodedArgs).args._from).to.be.equal( makerAddress, ); expect((transferLogs[1] as LogWithDecodedArgs).args._to).to.be.equal( takerAddress, ); expect( (transferLogs[1] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.makerAssetAmount); expect((transferLogs[2] as LogWithDecodedArgs).address).to.be.equal( erc20TokenB.address, ); expect((transferLogs[2] as LogWithDecodedArgs).args._from).to.be.equal( makerAddress, ); expect((transferLogs[2] as LogWithDecodedArgs).args._to).to.be.equal( feeRecipientAddress, ); expect( (transferLogs[2] as LogWithDecodedArgs).args._value, ).to.be.bignumber.equal(signedOrder.makerFee); }); }); describe('Testing exchange of ERC20 tokens with no return values', () => { before(async () => { noReturnErc20Token = await DummyNoReturnERC20TokenContract.deployFrom0xArtifactAsync( erc20Artifacts.DummyNoReturnERC20Token, provider, txDefaults, constants.DUMMY_TOKEN_NAME, constants.DUMMY_TOKEN_SYMBOL, constants.DUMMY_TOKEN_DECIMALS, constants.DUMMY_TOKEN_TOTAL_SUPPLY, ); await noReturnErc20Token.setBalance.awaitTransactionSuccessAsync( makerAddress, constants.INITIAL_ERC20_BALANCE, ); await noReturnErc20Token.approve.awaitTransactionSuccessAsync( erc20Proxy.address, constants.INITIAL_ERC20_ALLOWANCE, { from: makerAddress }, ); }); it('should transfer the correct amounts when makerAssetAmount === takerAssetAmount', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData: assetDataUtils.encodeERC20AssetData(noReturnErc20Token.address), makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), }); const initialMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const initialFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const finalMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const finalFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); expect(finalMakerBalanceA).to.be.bignumber.equal(initialMakerBalanceA.minus(signedOrder.makerAssetAmount)); expect(finalMakerBalanceB).to.be.bignumber.equal(initialMakerBalanceB.plus(signedOrder.takerAssetAmount)); expect(finalTakerBalanceA).to.be.bignumber.equal(initialTakerBalanceA.plus(signedOrder.makerAssetAmount)); expect(finalTakerBalanceB).to.be.bignumber.equal(initialTakerBalanceB.minus(signedOrder.takerAssetAmount)); expect(finalMakerFeeTokenBalance).to.be.bignumber.equal( initialMakerFeeTokenBalance.minus(signedOrder.makerFee), ); expect(finalTakerFeeTokenBalance).to.be.bignumber.equal( initialTakerFeeTokenBalance.minus(signedOrder.takerFee), ); expect(finalFeeRecipientFeeTokenBalance).to.be.bignumber.equal( initialFeeRecipientFeeTokenBalance.plus(signedOrder.makerFee.plus(signedOrder.takerFee)), ); }); it('should transfer the correct amounts when makerAssetAmount > takerAssetAmount', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData: assetDataUtils.encodeERC20AssetData(noReturnErc20Token.address), makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), }); const initialMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const initialFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const finalMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const finalFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); expect(finalMakerBalanceA).to.be.bignumber.equal(initialMakerBalanceA.minus(signedOrder.makerAssetAmount)); expect(finalMakerBalanceB).to.be.bignumber.equal(initialMakerBalanceB.plus(signedOrder.takerAssetAmount)); expect(finalTakerBalanceA).to.be.bignumber.equal(initialTakerBalanceA.plus(signedOrder.makerAssetAmount)); expect(finalTakerBalanceB).to.be.bignumber.equal(initialTakerBalanceB.minus(signedOrder.takerAssetAmount)); expect(finalMakerFeeTokenBalance).to.be.bignumber.equal( initialMakerFeeTokenBalance.minus(signedOrder.makerFee), ); expect(finalTakerFeeTokenBalance).to.be.bignumber.equal( initialTakerFeeTokenBalance.minus(signedOrder.takerFee), ); expect(finalFeeRecipientFeeTokenBalance).to.be.bignumber.equal( initialFeeRecipientFeeTokenBalance.plus(signedOrder.makerFee.plus(signedOrder.takerFee)), ); }); it('should transfer the correct amounts when makerAssetAmount < takerAssetAmount', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData: assetDataUtils.encodeERC20AssetData(noReturnErc20Token.address), makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), }); const initialMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const initialFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const finalMakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(makerAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerBalanceA = await noReturnErc20Token.balanceOf.callAsync(takerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const finalFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); expect(finalMakerBalanceA).to.be.bignumber.equal(initialMakerBalanceA.minus(signedOrder.makerAssetAmount)); expect(finalMakerBalanceB).to.be.bignumber.equal(initialMakerBalanceB.plus(signedOrder.takerAssetAmount)); expect(finalTakerBalanceA).to.be.bignumber.equal(initialTakerBalanceA.plus(signedOrder.makerAssetAmount)); expect(finalTakerBalanceB).to.be.bignumber.equal(initialTakerBalanceB.minus(signedOrder.takerAssetAmount)); expect(finalMakerFeeTokenBalance).to.be.bignumber.equal( initialMakerFeeTokenBalance.minus(signedOrder.makerFee), ); expect(finalTakerFeeTokenBalance).to.be.bignumber.equal( initialTakerFeeTokenBalance.minus(signedOrder.takerFee), ); expect(finalFeeRecipientFeeTokenBalance).to.be.bignumber.equal( initialFeeRecipientFeeTokenBalance.plus(signedOrder.makerFee.plus(signedOrder.takerFee)), ); }); }); describe('cancelOrder', () => { beforeEach(async () => { erc20Balances = await erc20Wrapper.getBalancesAsync(); signedOrder = await orderFactory.newSignedOrderAsync(); }); it('should throw if not sent by maker', async () => { const orderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.InvalidMakerError(orderHash, takerAddress); const tx = exchangeWrapper.cancelOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(expectedError); }); it('should throw if makerAssetAmount is 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(0), }); const orderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.OrderStatusError( orderHash, OrderStatus.InvalidMakerAssetAmount, ); const tx = exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); return expect(tx).to.revertWith(expectedError); }); it('should throw if takerAssetAmount is 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ takerAssetAmount: new BigNumber(0), }); const orderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.OrderStatusError( orderHash, OrderStatus.InvalidTakerAssetAmount, ); const tx = exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); return expect(tx).to.revertWith(expectedError); }); it('should be able to cancel an order', async () => { await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); const orderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.OrderStatusError(orderHash, OrderStatus.Cancelled); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: signedOrder.takerAssetAmount.div(2), }); return expect(tx).to.revertWith(expectedError); }); it('should log 1 event with correct arguments', async () => { const res = await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); expect(res.logs).to.have.length(1); const log = res.logs[0] as LogWithDecodedArgs; const logArgs = log.args; expect(signedOrder.makerAddress).to.be.equal(logArgs.makerAddress); expect(signedOrder.makerAddress).to.be.equal(logArgs.senderAddress); expect(signedOrder.feeRecipientAddress).to.be.equal(logArgs.feeRecipientAddress); expect(signedOrder.makerAssetData).to.be.equal(logArgs.makerAssetData); expect(signedOrder.takerAssetData).to.be.equal(logArgs.takerAssetData); expect(orderHashUtils.getOrderHashHex(signedOrder)).to.be.equal(logArgs.orderHash); }); it('should throw if already cancelled', async () => { await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); const orderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.OrderStatusError(orderHash, OrderStatus.Cancelled); const tx = exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); return expect(tx).to.revertWith(expectedError); }); it('should throw if order is expired', async () => { const currentTimestamp = await getLatestBlockTimestampAsync(); signedOrder = await orderFactory.newSignedOrderAsync({ expirationTimeSeconds: new BigNumber(currentTimestamp).minus(10), }); const orderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.OrderStatusError(orderHash, OrderStatus.Expired); const tx = exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); return expect(tx).to.revertWith(expectedError); }); it('should throw if rounding error is greater than 0.1%', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(1001), takerAssetAmount: new BigNumber(3), }); const fillTakerAssetAmount1 = new BigNumber(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: fillTakerAssetAmount1, }); const fillTakerAssetAmount2 = new BigNumber(1); const expectedError = new LibMathRevertErrors.RoundingError( fillTakerAssetAmount2, new BigNumber(3), new BigNumber(1001), ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: fillTakerAssetAmount2, }); return expect(tx).to.revertWith(expectedError); }); }); describe('cancelOrdersUpTo', () => { it('should fail to set orderEpoch less than current orderEpoch', async () => { const orderEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); const lesserOrderEpoch = new BigNumber(0); const expectedError = new ExchangeRevertErrors.OrderEpochError( makerAddress, constants.NULL_ADDRESS, orderEpoch.plus(1), ); const tx = exchangeWrapper.cancelOrdersUpToAsync(lesserOrderEpoch, makerAddress); return expect(tx).to.revertWith(expectedError); }); it('should fail to set orderEpoch equal to existing orderEpoch', async () => { const orderEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); const expectedError = new ExchangeRevertErrors.OrderEpochError( makerAddress, constants.NULL_ADDRESS, orderEpoch.plus(1), ); const tx = exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); return expect(tx).to.revertWith(expectedError); }); it('should cancel only orders with a orderEpoch less than existing orderEpoch', async () => { // Cancel all transactions with a orderEpoch less than 1 const orderEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); // Create 3 orders with orderEpoch values: 0,1,2,3 // Since we cancelled with orderEpoch=1, orders with orderEpoch<=1 will not be processed erc20Balances = await erc20Wrapper.getBalancesAsync(); const signedOrders = [ await orderFactory.newSignedOrderAsync({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(9), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(9), 18), salt: new BigNumber(0), }), await orderFactory.newSignedOrderAsync({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(79), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(79), 18), salt: new BigNumber(1), }), await orderFactory.newSignedOrderAsync({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(979), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(979), 18), salt: new BigNumber(2), }), await orderFactory.newSignedOrderAsync({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(7979), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(7979), 18), salt: new BigNumber(3), }), ]; await exchangeWrapper.batchFillOrdersNoThrowAsync(signedOrders, takerAddress, { // HACK(albrow): We need to hardcode the gas estimate here because // the Geth gas estimator doesn't work with the way we use // delegatecall and swallow errors. gas: 600000, }); const newBalances = await erc20Wrapper.getBalancesAsync(); const fillMakerAssetAmount = signedOrders[2].makerAssetAmount.plus(signedOrders[3].makerAssetAmount); const fillTakerAssetAmount = signedOrders[2].takerAssetAmount.plus(signedOrders[3].takerAssetAmount); const makerFee = signedOrders[2].makerFee.plus(signedOrders[3].makerFee); const takerFee = signedOrders[2].takerFee.plus(signedOrders[3].takerFee); expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultMakerAssetAddress].minus(fillMakerAssetAmount), ); expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultTakerAssetAddress].plus(fillTakerAssetAmount), ); expect(newBalances[makerAddress][feeToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][feeToken.address].minus(makerFee), ); expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultTakerAssetAddress].minus(fillTakerAssetAmount), ); expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultMakerAssetAddress].plus(fillMakerAssetAmount), ); expect(newBalances[takerAddress][feeToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][feeToken.address].minus(takerFee), ); expect(newBalances[feeRecipientAddress][feeToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][feeToken.address].plus(makerFee.plus(takerFee)), ); }); }); describe('Testing Exchange of ERC721 Tokens', () => { it('should throw when maker does not own the token with id makerAssetId', async () => { // Construct Exchange parameters const makerAssetId = erc721TakerAssetIds[0]; const takerAssetId = erc721TakerAssetIds[1]; signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(1), makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), }); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); // Verify pre-conditions const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); expect(initialOwnerMakerAsset).to.be.bignumber.not.equal(makerAddress); const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); // Call Exchange const takerAssetFillAmount = signedOrder.takerAssetAmount; const expectedError = new ExchangeRevertErrors.AssetProxyTransferError( orderHashHex, signedOrder.makerAssetData, new StringRevertError(RevertReason.TransferFailed).encode(), ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); return expect(tx).to.revertWith(expectedError); }); it('should throw when taker does not own the token with id takerAssetId', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; const takerAssetId = erc721MakerAssetIds[1]; signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(1), makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), }); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); // Verify pre-conditions const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); expect(initialOwnerMakerAsset).to.be.bignumber.equal(makerAddress); const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(initialOwnerTakerAsset).to.be.bignumber.not.equal(takerAddress); // Call Exchange const takerAssetFillAmount = signedOrder.takerAssetAmount; const expectedError = new ExchangeRevertErrors.AssetProxyTransferError( orderHashHex, signedOrder.takerAssetData, new StringRevertError(RevertReason.TransferFailed).encode(), ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); return expect(tx).to.revertWith(expectedError); }); it('should throw when makerAssetAmount is greater than 1', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; const takerAssetId = erc721TakerAssetIds[0]; signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(2), takerAssetAmount: new BigNumber(1), makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), }); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); // Verify pre-conditions const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); expect(initialOwnerMakerAsset).to.be.bignumber.equal(makerAddress); const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); // Call Exchange const takerAssetFillAmount = signedOrder.takerAssetAmount; const expectedError = new ExchangeRevertErrors.AssetProxyTransferError( orderHashHex, signedOrder.makerAssetData, new StringRevertError(RevertReason.InvalidAmount).encode(), ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); return expect(tx).to.revertWith(expectedError); }); it('should throw when takerAssetAmount is greater than 1', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; const takerAssetId = erc721TakerAssetIds[0]; signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(500), makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), }); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); // Verify pre-conditions const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); expect(initialOwnerMakerAsset).to.be.bignumber.equal(makerAddress); const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); // Call Exchange const takerAssetFillAmount = signedOrder.takerAssetAmount; const expectedError = new ExchangeRevertErrors.AssetProxyTransferError( orderHashHex, signedOrder.takerAssetData, new StringRevertError(RevertReason.InvalidAmount).encode(), ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); return expect(tx).to.revertWith(expectedError); }); it('should throw on partial fill', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(1), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), makerAssetData: assetDataUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetDataUtils.encodeERC20AssetData(defaultTakerAssetAddress), }); // Call Exchange const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); const expectedError = new LibMathRevertErrors.RoundingError( takerAssetFillAmount, signedOrder.takerAssetAmount, signedOrder.makerAssetAmount, ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); return expect(tx).to.revertWith(expectedError); }); }); describe('Testing exchange of multiple assets', () => { it('should allow multiple assets to be exchanged for a single asset', async () => { const makerAmounts = [new BigNumber(10), new BigNumber(20)]; const makerNestedAssetData = [ assetDataUtils.encodeERC20AssetData(erc20TokenA.address), assetDataUtils.encodeERC20AssetData(erc20TokenB.address), ]; const makerAssetData = assetDataUtils.encodeMultiAssetData(makerAmounts, makerNestedAssetData); const makerAssetAmount = new BigNumber(1); const takerAssetData = assetDataUtils.encodeERC20AssetData(feeToken.address); const takerAssetAmount = new BigNumber(10); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); expect(finalMakerBalanceA).to.be.bignumber.equal( initialMakerBalanceA.minus(makerAmounts[0].times(makerAssetAmount)), ); expect(finalMakerBalanceB).to.be.bignumber.equal( initialMakerBalanceB.minus(makerAmounts[1].times(makerAssetAmount)), ); expect(finalMakerFeeTokenBalance).to.be.bignumber.equal(initialMakerFeeTokenBalance.plus(takerAssetAmount)); expect(finalTakerBalanceA).to.be.bignumber.equal( initialTakerBalanceA.plus(makerAmounts[0].times(makerAssetAmount)), ); expect(finalTakerBalanceB).to.be.bignumber.equal( initialTakerBalanceB.plus(makerAmounts[1].times(makerAssetAmount)), ); expect(finalTakerFeeTokenBalance).to.be.bignumber.equal( initialTakerFeeTokenBalance.minus(takerAssetAmount), ); }); it('should allow multiple assets to be exchanged for multiple assets', async () => { const makerAmounts = [new BigNumber(10), new BigNumber(20)]; const makerNestedAssetData = [ assetDataUtils.encodeERC20AssetData(erc20TokenA.address), assetDataUtils.encodeERC20AssetData(erc20TokenB.address), ]; const makerAssetData = assetDataUtils.encodeMultiAssetData(makerAmounts, makerNestedAssetData); const makerAssetAmount = new BigNumber(1); const takerAmounts = [new BigNumber(10), new BigNumber(1)]; const takerAssetId = erc721TakerAssetIds[0]; const takerNestedAssetData = [ assetDataUtils.encodeERC20AssetData(feeToken.address), assetDataUtils.encodeERC721AssetData(erc721Token.address, takerAssetId), ]; const takerAssetData = assetDataUtils.encodeMultiAssetData(takerAmounts, takerNestedAssetData); const takerAssetAmount = new BigNumber(1); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const finalOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(finalMakerBalanceA).to.be.bignumber.equal( initialMakerBalanceA.minus(makerAmounts[0].times(makerAssetAmount)), ); expect(finalMakerBalanceB).to.be.bignumber.equal( initialMakerBalanceB.minus(makerAmounts[1].times(makerAssetAmount)), ); expect(finalMakerFeeTokenBalance).to.be.bignumber.equal( initialMakerFeeTokenBalance.plus(takerAmounts[0].times(takerAssetAmount)), ); expect(finalTakerBalanceA).to.be.bignumber.equal( initialTakerBalanceA.plus(makerAmounts[0].times(makerAssetAmount)), ); expect(finalTakerBalanceB).to.be.bignumber.equal( initialTakerBalanceB.plus(makerAmounts[1].times(makerAssetAmount)), ); expect(finalTakerFeeTokenBalance).to.be.bignumber.equal( initialTakerFeeTokenBalance.minus(takerAmounts[0].times(takerAssetAmount)), ); expect(finalOwnerTakerAsset).to.be.equal(makerAddress); }); it('should allow an order selling multiple assets to be partially filled', async () => { const makerAmounts = [new BigNumber(10), new BigNumber(20)]; const makerNestedAssetData = [ assetDataUtils.encodeERC20AssetData(erc20TokenA.address), assetDataUtils.encodeERC20AssetData(erc20TokenB.address), ]; const makerAssetData = assetDataUtils.encodeMultiAssetData(makerAmounts, makerNestedAssetData); const makerAssetAmount = new BigNumber(30); const takerAssetData = assetDataUtils.encodeERC20AssetData(feeToken.address); const takerAssetAmount = new BigNumber(10); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const takerAssetFillAmount = takerAssetAmount.dividedToIntegerBy(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount, }); const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); expect(finalMakerBalanceA).to.be.bignumber.equal( initialMakerBalanceA.minus( makerAmounts[0].times( makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ), ); expect(finalMakerBalanceB).to.be.bignumber.equal( initialMakerBalanceB.minus( makerAmounts[1].times( makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ), ); expect(finalMakerFeeTokenBalance).to.be.bignumber.equal( initialMakerFeeTokenBalance.plus( takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ); expect(finalTakerBalanceA).to.be.bignumber.equal( initialTakerBalanceA.plus( makerAmounts[0].times( makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ), ); expect(finalTakerBalanceB).to.be.bignumber.equal( initialTakerBalanceB.plus( makerAmounts[1].times( makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ), ); expect(finalTakerFeeTokenBalance).to.be.bignumber.equal( initialTakerFeeTokenBalance.minus( takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ); }); it('should allow an order buying multiple assets to be partially filled', async () => { const takerAmounts = [new BigNumber(10), new BigNumber(20)]; const takerNestedAssetData = [ assetDataUtils.encodeERC20AssetData(erc20TokenA.address), assetDataUtils.encodeERC20AssetData(erc20TokenB.address), ]; const takerAssetData = assetDataUtils.encodeMultiAssetData(takerAmounts, takerNestedAssetData); const takerAssetAmount = new BigNumber(30); const makerAssetData = assetDataUtils.encodeERC20AssetData(feeToken.address); const makerAssetAmount = new BigNumber(10); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const takerAssetFillAmount = takerAssetAmount.dividedToIntegerBy(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount, }); const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); expect(finalMakerBalanceA).to.be.bignumber.equal( initialMakerBalanceA.plus( takerAmounts[0].times( takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ), ); expect(finalMakerBalanceB).to.be.bignumber.equal( initialMakerBalanceB.plus( takerAmounts[1].times( takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ), ); expect(finalMakerFeeTokenBalance).to.be.bignumber.equal( initialMakerFeeTokenBalance.minus( makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ); expect(finalTakerBalanceA).to.be.bignumber.equal( initialTakerBalanceA.minus( takerAmounts[0].times( takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ), ); expect(finalTakerBalanceB).to.be.bignumber.equal( initialTakerBalanceB.minus( takerAmounts[1].times( takerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ), ); expect(finalTakerFeeTokenBalance).to.be.bignumber.equal( initialTakerFeeTokenBalance.plus( makerAssetAmount.times(takerAssetFillAmount).dividedToIntegerBy(takerAssetAmount), ), ); }); }); describe('Testing exchange of erc1155 assets', () => { it('should allow a single fungible erc1155 asset to be exchanged for another', async () => { // setup test parameters const tokenHolders = [makerAddress, takerAddress]; const makerAssetsToTransfer = erc1155FungibleTokens.slice(0, 1); const takerAssetsToTransfer = erc1155FungibleTokens.slice(1, 2); const makerValuesToTransfer = [new BigNumber(500)]; const takerValuesToTransfer = [new BigNumber(200)]; const tokensToTransfer = makerAssetsToTransfer.concat(takerAssetsToTransfer); const makerAssetAmount = new BigNumber(1); const takerAssetAmount = new BigNumber(1); const totalMakerValuesTransferred = _.map(makerValuesToTransfer, (value: BigNumber) => { return value.times(makerAssetAmount); }); const totalTakerValuesTransferred = _.map(takerValuesToTransfer, (value: BigNumber) => { return value.times(takerAssetAmount); }); const receiverCallbackData = '0x'; const makerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, makerAssetsToTransfer, makerValuesToTransfer, receiverCallbackData, ); const takerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, takerAssetsToTransfer, takerValuesToTransfer, receiverCallbackData, ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); const takerAssetFillAmount = new BigNumber(1); // check balances before transfer const expectedInitialBalances = [ // makerAddress / makerToken constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / takerToken constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / makerToken constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / takerToken constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedInitialBalances); // execute transfer await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount, }); // check balances after transfer const expectedFinalBalances = [ // makerAddress / makerToken expectedInitialBalances[0].minus(totalMakerValuesTransferred[0]), // makerAddress / takerToken expectedInitialBalances[1].plus(totalTakerValuesTransferred[0]), // takerAddress / makerToken expectedInitialBalances[2].plus(totalMakerValuesTransferred[0]), // takerAddress / takerToken expectedInitialBalances[3].minus(totalTakerValuesTransferred[0]), ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedFinalBalances); }); it('should allow a single non-fungible erc1155 asset to be exchanged for another', async () => { // setup test parameters const tokenHolders = [makerAddress, takerAddress]; const makerAssetsToTransfer = erc1155NonFungibleTokensOwnedByMaker.slice(0, 1); const takerAssetsToTransfer = erc1155NonFungibleTokensOwnedByTaker.slice(0, 1); const makerValuesToTransfer = [new BigNumber(1)]; const takerValuesToTransfer = [new BigNumber(1)]; const tokensToTransfer = makerAssetsToTransfer.concat(takerAssetsToTransfer); const makerAssetAmount = new BigNumber(1); const takerAssetAmount = new BigNumber(1); const totalMakerValuesTransferred = _.map(makerValuesToTransfer, (value: BigNumber) => { return value.times(makerAssetAmount); }); const totalTakerValuesTransferred = _.map(takerValuesToTransfer, (value: BigNumber) => { return value.times(takerAssetAmount); }); const receiverCallbackData = '0x'; const makerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, makerAssetsToTransfer, makerValuesToTransfer, receiverCallbackData, ); const takerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, takerAssetsToTransfer, takerValuesToTransfer, receiverCallbackData, ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); const takerAssetFillAmount = new BigNumber(1); // check balances before transfer const nftOwnerBalance = new BigNumber(1); const nftNotOwnerBalance = new BigNumber(0); const expectedInitialBalances = [ // makerAddress / makerToken nftOwnerBalance, // makerAddress / takerToken nftNotOwnerBalance, // takerAddress / makerToken nftNotOwnerBalance, // takerAddress / takerToken nftOwnerBalance, ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedInitialBalances); // execute transfer await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount, }); // check balances after transfer const expectedFinalBalances = [ // makerAddress / makerToken expectedInitialBalances[0].minus(totalMakerValuesTransferred[0]), // makerAddress / takerToken expectedInitialBalances[1].plus(totalTakerValuesTransferred[0]), // takerAddress / makerToken expectedInitialBalances[2].plus(totalMakerValuesTransferred[0]), // takerAddress / takerToken expectedInitialBalances[3].minus(totalTakerValuesTransferred[0]), ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedFinalBalances); }); it('should allow multiple erc1155 assets to be exchanged for a single asset', async () => { // setup test parameters const tokenHolders = [makerAddress, takerAddress]; const makerAssetsToTransfer = erc1155FungibleTokens.slice(0, 3); const takerAssetsToTransfer = erc1155NonFungibleTokensOwnedByTaker.slice(0, 1); const makerValuesToTransfer = [new BigNumber(500), new BigNumber(700), new BigNumber(900)]; const takerValuesToTransfer = [new BigNumber(1)]; const tokensToTransfer = makerAssetsToTransfer.concat(takerAssetsToTransfer); const makerAssetAmount = new BigNumber(1); const takerAssetAmount = new BigNumber(1); const totalMakerValuesTransferred = _.map(makerValuesToTransfer, (value: BigNumber) => { return value.times(makerAssetAmount); }); const totalTakerValuesTransferred = _.map(takerValuesToTransfer, (value: BigNumber) => { return value.times(takerAssetAmount); }); const receiverCallbackData = '0x'; const makerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, makerAssetsToTransfer, makerValuesToTransfer, receiverCallbackData, ); const takerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, takerAssetsToTransfer, takerValuesToTransfer, receiverCallbackData, ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); const takerAssetFillAmount = new BigNumber(1); // check balances before transfer const nftOwnerBalance = new BigNumber(1); const nftNotOwnerBalance = new BigNumber(0); const expectedInitialBalances = [ // makerAddress / makerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / makerToken[1] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / makerToken[2] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / takerToken nftNotOwnerBalance, // takerAddress / makerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / makerToken[1] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / makerToken[2] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / takerToken nftOwnerBalance, ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedInitialBalances); // execute transfer await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount, }); // check balances after transfer const expectedFinalBalances = [ // makerAddress / makerToken[0] expectedInitialBalances[0].minus(totalMakerValuesTransferred[0]), // makerAddress / makerToken[1] expectedInitialBalances[1].minus(totalMakerValuesTransferred[1]), // makerAddress / makerToken[2] expectedInitialBalances[2].minus(totalMakerValuesTransferred[2]), // makerAddress / takerToken expectedInitialBalances[3].plus(totalTakerValuesTransferred[0]), // takerAddress / makerToken[0] expectedInitialBalances[4].plus(totalMakerValuesTransferred[0]), // takerAddress / makerToken[1] expectedInitialBalances[5].plus(totalMakerValuesTransferred[1]), // takerAddress / makerToken[2] expectedInitialBalances[6].plus(totalMakerValuesTransferred[2]), // takerAddress / takerToken expectedInitialBalances[7].minus(totalTakerValuesTransferred[0]), ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedFinalBalances); }); it('should allow multiple erc1155 assets to be exchanged for multiple erc1155 assets, mixed fungible/non-fungible', async () => { // setup test parameters // the maker is trading two fungibles & one non-fungible // the taker is trading one fungible & two non-fungibles const tokenHolders = [makerAddress, takerAddress]; const makerFungibleAssetsToTransfer = erc1155FungibleTokens.slice(0, 2); const makerNonFungibleAssetsToTransfer = erc1155NonFungibleTokensOwnedByMaker.slice(0, 1); const makerAssetsToTransfer = makerFungibleAssetsToTransfer.concat(makerNonFungibleAssetsToTransfer); const takerFungibleAssetsToTransfer = erc1155FungibleTokens.slice(2, 3); const takerNonFungibleAssetsToTransfer = erc1155NonFungibleTokensOwnedByTaker.slice(0, 2); const takerAssetsToTransfer = takerFungibleAssetsToTransfer.concat(takerNonFungibleAssetsToTransfer); const makerValuesToTransfer = [new BigNumber(500), new BigNumber(700), new BigNumber(1)]; const takerValuesToTransfer = [new BigNumber(900), new BigNumber(1), new BigNumber(1)]; const tokensToTransfer = makerAssetsToTransfer.concat(takerAssetsToTransfer); const makerAssetAmount = new BigNumber(1); const takerAssetAmount = new BigNumber(1); const totalMakerValuesTransferred = _.map(makerValuesToTransfer, (value: BigNumber) => { return value.times(makerAssetAmount); }); const totalTakerValuesTransferred = _.map(takerValuesToTransfer, (value: BigNumber) => { return value.times(takerAssetAmount); }); const receiverCallbackData = '0x'; const makerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, makerAssetsToTransfer, makerValuesToTransfer, receiverCallbackData, ); const takerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, takerAssetsToTransfer, takerValuesToTransfer, receiverCallbackData, ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); const takerAssetFillAmount = new BigNumber(1); // check balances before transfer const nftOwnerBalance = new BigNumber(1); const nftNotOwnerBalance = new BigNumber(0); const expectedInitialBalances = [ // makerAddress / makerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / makerToken[1] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / makerToken[2] nftOwnerBalance, // makerAddress / takerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / takerToken[1] nftNotOwnerBalance, // makerAddress / takerToken[2] nftNotOwnerBalance, // takerAddress / makerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / makerToken[1] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / makerToken[2] nftNotOwnerBalance, // takerAddress / takerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / takerToken[1] nftOwnerBalance, // takerAddress / takerToken[2] nftOwnerBalance, ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedInitialBalances); // execute transfer await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount, }); // check balances after transfer const expectedFinalBalances = [ // makerAddress / makerToken[0] expectedInitialBalances[0].minus(totalMakerValuesTransferred[0]), // makerAddress / makerToken[1] expectedInitialBalances[1].minus(totalMakerValuesTransferred[1]), // makerAddress / makerToken[2] expectedInitialBalances[2].minus(totalMakerValuesTransferred[2]), // makerAddress / takerToken[0] expectedInitialBalances[3].plus(totalTakerValuesTransferred[0]), // makerAddress / takerToken[1] expectedInitialBalances[4].plus(totalTakerValuesTransferred[1]), // makerAddress / takerToken[2] expectedInitialBalances[5].plus(totalTakerValuesTransferred[2]), // takerAddress / makerToken[0] expectedInitialBalances[6].plus(totalMakerValuesTransferred[0]), // takerAddress / makerToken[1] expectedInitialBalances[7].plus(totalMakerValuesTransferred[1]), // takerAddress / makerToken[2] expectedInitialBalances[8].plus(totalMakerValuesTransferred[2]), // takerAddress / takerToken[0] expectedInitialBalances[9].minus(totalTakerValuesTransferred[0]), // takerAddress / takerToken[1] expectedInitialBalances[10].minus(totalTakerValuesTransferred[1]), // takerAddress / takerToken[2] expectedInitialBalances[11].minus(totalTakerValuesTransferred[2]), ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedFinalBalances); }); it('should allow an order exchanging erc1155 assets to be partially filled', async () => { // NOTICE: // As-per the eip1155 standard, there is no way to distinguish between a fungible or non-fungible erc1155 assets. // Hence we cannot force partial fills to fail if there is a non-fungible asset (which should be fill or kill). // We considered encoding whether an asset is fungible/non-fungible in erc1155 assetData, but // this is no more robust than a simple check by the client. Enforcing this at the smart contract level // is something that could be done with the upcoming static call proxy. // // setup test parameters // the maker is trading two fungibles and the taker is trading one fungible // note that this will result in a partial fill because the `takerAssetAmount` // less than the `takerAssetAmount` of the order. const takerAssetFillAmount = new BigNumber(6); const tokenHolders = [makerAddress, takerAddress]; const makerAssetsToTransfer = erc1155FungibleTokens.slice(0, 2); const takerAssetsToTransfer = erc1155FungibleTokens.slice(2, 3); const makerValuesToTransfer = [new BigNumber(500), new BigNumber(700)]; const takerValuesToTransfer = [new BigNumber(900)]; const tokensToTransfer = makerAssetsToTransfer.concat(takerAssetsToTransfer); const makerAssetAmount = new BigNumber(10); const takerAssetAmount = new BigNumber(20); const totalMakerValuesTransferred = _.map(makerValuesToTransfer, (value: BigNumber) => { return value .times(makerAssetAmount) .times(takerAssetFillAmount) .dividedToIntegerBy(takerAssetAmount); }); const totalTakerValuesTransferred = _.map(takerValuesToTransfer, (value: BigNumber) => { return value .times(takerAssetAmount) .times(takerAssetFillAmount) .dividedToIntegerBy(takerAssetAmount); }); const receiverCallbackData = '0x'; const makerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, makerAssetsToTransfer, makerValuesToTransfer, receiverCallbackData, ); const takerAssetData = assetDataUtils.encodeERC1155AssetData( erc1155Contract.address, takerAssetsToTransfer, takerValuesToTransfer, receiverCallbackData, ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData, takerAssetData, makerAssetAmount, takerAssetAmount, makerFee: constants.ZERO_AMOUNT, takerFee: constants.ZERO_AMOUNT, }); // check balances before transfer const expectedInitialBalances = [ // makerAddress / makerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / makerToken[1] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // makerAddress / takerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / makerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / makerToken[1] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, // takerAddress / takerToken[0] constants.INITIAL_ERC1155_FUNGIBLE_BALANCE, ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedInitialBalances); // execute transfer await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount, }); // check balances after transfer const expectedFinalBalances = [ // makerAddress / makerToken[0] expectedInitialBalances[0].minus(totalMakerValuesTransferred[0]), // makerAddress / makerToken[1] expectedInitialBalances[1].minus(totalMakerValuesTransferred[1]), // makerAddress / takerToken[0] expectedInitialBalances[2].plus(totalTakerValuesTransferred[0]), // takerAddress / makerToken[0] expectedInitialBalances[3].plus(totalMakerValuesTransferred[0]), // takerAddress / makerToken[1] expectedInitialBalances[4].plus(totalMakerValuesTransferred[1]), // takerAddress / takerToken[0] expectedInitialBalances[5].minus(totalTakerValuesTransferred[0]), ]; await erc1155Wrapper.assertBalancesAsync(tokenHolders, tokensToTransfer, expectedFinalBalances); // check that the order is partially filled const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = takerAssetFillAmount; const expectedOrderStatus = OrderStatus.Fillable; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); }); describe('Testing orders that utilize StaticCallProxy', () => { before(async () => { staticCallTarget = await TestStaticCallTargetContract.deployFrom0xArtifactAsync( proxyArtifacts.TestStaticCallTarget, provider, txDefaults, ); }); it('should revert if the staticcall is unsuccessful', async () => { const staticCallData = staticCallTarget.assertEvenNumber.getABIEncodedTransactionData(new BigNumber(1)); const assetData = assetDataUtils.encodeStaticCallAssetData( staticCallTarget.address, staticCallData, constants.KECCAK256_NULL, ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData: assetData }); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.AssetProxyTransferError( orderHashHex, assetData, new StringRevertError(RevertReason.TargetNotEven).encode(), ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(expectedError); }); it('should fill the order if the staticcall is successful', async () => { const staticCallData = staticCallTarget.assertEvenNumber.getABIEncodedTransactionData( constants.ZERO_AMOUNT, ); const assetData = assetDataUtils.encodeStaticCallAssetData( staticCallTarget.address, staticCallData, constants.KECCAK256_NULL, ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData: assetData }); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const initialFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const finalFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); expect(finalMakerFeeTokenBalance).to.bignumber.equal( initialMakerFeeTokenBalance.minus(signedOrder.makerFee), ); expect(finalTakerFeeTokenBalance).to.bignumber.equal( initialTakerFeeTokenBalance.minus(signedOrder.takerFee), ); expect(finalFeeRecipientFeeTokenBalance).to.bignumber.equal( initialFeeRecipientFeeTokenBalance.plus(signedOrder.makerFee).plus(signedOrder.takerFee), ); expect(finalMakerBalanceB).to.bignumber.equal(initialMakerBalanceB.plus(signedOrder.takerAssetAmount)); expect(finalTakerBalanceB).to.bignumber.equal(initialTakerBalanceB.minus(signedOrder.takerAssetAmount)); }); it('should revert if the staticcall is unsuccessful using the MultiAssetProxy', async () => { const staticCallData = staticCallTarget.assertEvenNumber.getABIEncodedTransactionData(new BigNumber(1)); const staticCallAssetData = assetDataUtils.encodeStaticCallAssetData( staticCallTarget.address, staticCallData, constants.KECCAK256_NULL, ); const assetData = assetDataUtils.encodeMultiAssetData( [new BigNumber(1), new BigNumber(1)], [assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), staticCallAssetData], ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData: assetData }); const orderHashHex = orderHashUtils.getOrderHashHex(signedOrder); const expectedError = new ExchangeRevertErrors.AssetProxyTransferError( orderHashHex, assetData, new StringRevertError(RevertReason.TargetNotEven).encode(), ); const tx = exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(tx).to.revertWith(expectedError); }); it('should fill the order is the staticcall is successful using the MultiAssetProxy', async () => { const staticCallData = staticCallTarget.assertEvenNumber.getABIEncodedTransactionData( constants.ZERO_AMOUNT, ); const staticCallAssetData = assetDataUtils.encodeStaticCallAssetData( staticCallTarget.address, staticCallData, constants.KECCAK256_NULL, ); const assetData = assetDataUtils.encodeMultiAssetData( [new BigNumber(1), new BigNumber(1)], [assetDataUtils.encodeERC20AssetData(defaultMakerAssetAddress), staticCallAssetData], ); signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetData: assetData }); const initialMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const initialTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const initialFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); const initialMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const initialTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const initialMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const initialTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const finalMakerFeeTokenBalance = await feeToken.balanceOf.callAsync(makerAddress); const finalTakerFeeTokenBalance = await feeToken.balanceOf.callAsync(takerAddress); const finalFeeRecipientFeeTokenBalance = await feeToken.balanceOf.callAsync(feeRecipientAddress); const finalMakerBalanceA = await erc20TokenA.balanceOf.callAsync(makerAddress); const finalTakerBalanceA = await erc20TokenA.balanceOf.callAsync(takerAddress); const finalMakerBalanceB = await erc20TokenB.balanceOf.callAsync(makerAddress); const finalTakerBalanceB = await erc20TokenB.balanceOf.callAsync(takerAddress); expect(finalMakerFeeTokenBalance).to.bignumber.equal( initialMakerFeeTokenBalance.minus(signedOrder.makerFee), ); expect(finalTakerFeeTokenBalance).to.bignumber.equal( initialTakerFeeTokenBalance.minus(signedOrder.takerFee), ); expect(finalFeeRecipientFeeTokenBalance).to.bignumber.equal( initialFeeRecipientFeeTokenBalance.plus(signedOrder.makerFee).plus(signedOrder.takerFee), ); expect(finalMakerBalanceA).to.bignumber.equal(initialMakerBalanceA.minus(signedOrder.makerAssetAmount)); expect(finalTakerBalanceA).to.bignumber.equal(initialTakerBalanceA.plus(signedOrder.makerAssetAmount)); expect(finalMakerBalanceB).to.bignumber.equal(initialMakerBalanceB.plus(signedOrder.takerAssetAmount)); expect(finalTakerBalanceB).to.bignumber.equal(initialTakerBalanceB.minus(signedOrder.takerAssetAmount)); }); }); describe('getOrderInfo', () => { beforeEach(async () => { signedOrder = await orderFactory.newSignedOrderAsync(); }); it('should return the correct orderInfo for an unfilled valid order', async () => { const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = new BigNumber(0); const expectedOrderStatus = OrderStatus.Fillable; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for a fully filled order', async () => { await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = signedOrder.takerAssetAmount; const expectedOrderStatus = OrderStatus.FullyFilled; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for a partially filled order', async () => { const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = takerAssetFillAmount; const expectedOrderStatus = OrderStatus.Fillable; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for a cancelled and unfilled order', async () => { await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = new BigNumber(0); const expectedOrderStatus = OrderStatus.Cancelled; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for a cancelled and partially filled order', async () => { const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = takerAssetFillAmount; const expectedOrderStatus = OrderStatus.Cancelled; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for an expired and unfilled order', async () => { const currentTimestamp = await getLatestBlockTimestampAsync(); const timeUntilExpiration = signedOrder.expirationTimeSeconds.minus(currentTimestamp).toNumber(); await increaseTimeAndMineBlockAsync(timeUntilExpiration); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = new BigNumber(0); const expectedOrderStatus = OrderStatus.Expired; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for an expired and partially filled order', async () => { const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); const currentTimestamp = await getLatestBlockTimestampAsync(); const timeUntilExpiration = signedOrder.expirationTimeSeconds.minus(currentTimestamp).toNumber(); await increaseTimeAndMineBlockAsync(timeUntilExpiration); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = takerAssetFillAmount; const expectedOrderStatus = OrderStatus.Expired; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for an expired and fully filled order', async () => { await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); const currentTimestamp = await getLatestBlockTimestampAsync(); const timeUntilExpiration = signedOrder.expirationTimeSeconds.minus(currentTimestamp).toNumber(); await increaseTimeAndMineBlockAsync(timeUntilExpiration); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = signedOrder.takerAssetAmount; // FULLY_FILLED takes precedence over EXPIRED const expectedOrderStatus = OrderStatus.FullyFilled; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for an order with a makerAssetAmount of 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerAssetAmount: new BigNumber(0) }); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = new BigNumber(0); const expectedOrderStatus = OrderStatus.InvalidMakerAssetAmount; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); it('should return the correct orderInfo for an order with a takerAssetAmount of 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ takerAssetAmount: new BigNumber(0) }); const orderInfo = await exchangeWrapper.getOrderInfoAsync(signedOrder); const expectedOrderHash = orderHashUtils.getOrderHashHex(signedOrder); const expectedTakerAssetFilledAmount = new BigNumber(0); const expectedOrderStatus = OrderStatus.InvalidTakerAssetAmount; expect(orderInfo.orderHash).to.be.equal(expectedOrderHash); expect(orderInfo.orderTakerAssetFilledAmount).to.be.bignumber.equal(expectedTakerAssetFilledAmount); expect(orderInfo.orderStatus).to.equal(expectedOrderStatus); }); }); }); // tslint:disable:max-file-line-count // tslint:enable:no-unnecessary-type-assertion