import { BlockchainLifecycle } from '@0xproject/dev-utils'; import { assetProxyUtils, crypto, orderHashUtils } from '@0xproject/order-utils'; import { AssetProxyId, SignedOrder } from '@0xproject/types'; import { BigNumber } from '@0xproject/utils'; import { Web3Wrapper } from '@0xproject/web3-wrapper'; import * as chai from 'chai'; import { LogWithDecodedArgs } from 'ethereum-types'; import ethUtil = require('ethereumjs-util'); import 'make-promises-safe'; import { DummyERC20TokenContract } from '../../src/generated_contract_wrappers/dummy_e_r_c20_token'; import { DummyERC721TokenContract } from '../../src/generated_contract_wrappers/dummy_e_r_c721_token'; import { ERC20ProxyContract } from '../../src/generated_contract_wrappers/e_r_c20_proxy'; import { ERC721ProxyContract } from '../../src/generated_contract_wrappers/e_r_c721_proxy'; import { CancelContractEventArgs, ExchangeContract, FillContractEventArgs, } from '../../src/generated_contract_wrappers/exchange'; import { artifacts } from '../../src/utils/artifacts'; import { chaiSetup } from '../../src/utils/chai_setup'; import { constants } from '../../src/utils/constants'; import { ERC20Wrapper } from '../../src/utils/erc20_wrapper'; import { ERC721Wrapper } from '../../src/utils/erc721_wrapper'; import { ExchangeWrapper } from '../../src/utils/exchange_wrapper'; import { OrderFactory } from '../../src/utils/order_factory'; import { orderUtils } from '../../src/utils/order_utils'; import { ContractName, ERC20BalancesByOwner, OrderStatus } from '../../src/utils/types'; import { provider, txDefaults, web3Wrapper } from '../../src/utils/web3_wrapper'; chaiSetup.configure(); const expect = chai.expect; const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); describe('Exchange core', () => { let makerAddress: string; let owner: string; let takerAddress: string; let feeRecipientAddress: string; let erc20TokenA: DummyERC20TokenContract; let erc20TokenB: DummyERC20TokenContract; let zrxToken: DummyERC20TokenContract; let erc721Token: DummyERC721TokenContract; let exchange: ExchangeContract; let erc20Proxy: ERC20ProxyContract; let erc721Proxy: ERC721ProxyContract; let signedOrder: SignedOrder; let erc20Balances: ERC20BalancesByOwner; let exchangeWrapper: ExchangeWrapper; let erc20Wrapper: ERC20Wrapper; let erc721Wrapper: ERC721Wrapper; let orderFactory: OrderFactory; let erc721MakerAssetIds: BigNumber[]; let erc721TakerAssetIds: BigNumber[]; let defaultMakerAssetAddress: string; let defaultTakerAssetAddress: string; before(async () => { await blockchainLifecycle.startAsync(); }); after(async () => { await blockchainLifecycle.revertAsync(); }); before(async () => { const accounts = await web3Wrapper.getAvailableAddressesAsync(); const usedAddresses = ([owner, makerAddress, takerAddress, feeRecipientAddress] = accounts); erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); [erc20TokenA, erc20TokenB, zrxToken] = await erc20Wrapper.deployDummyTokensAsync(); erc20Proxy = await erc20Wrapper.deployProxyAsync(); await erc20Wrapper.setBalancesAndAllowancesAsync(); [erc721Token] = await erc721Wrapper.deployDummyTokensAsync(); erc721Proxy = await erc721Wrapper.deployProxyAsync(); await erc721Wrapper.setBalancesAndAllowancesAsync(); const erc721Balances = await erc721Wrapper.getBalancesAsync(); erc721MakerAssetIds = erc721Balances[makerAddress][erc721Token.address]; erc721TakerAssetIds = erc721Balances[takerAddress][erc721Token.address]; exchange = await ExchangeContract.deployFrom0xArtifactAsync( artifacts.Exchange, provider, txDefaults, assetProxyUtils.encodeERC20ProxyData(zrxToken.address), ); exchangeWrapper = new ExchangeWrapper(exchange, provider); await exchangeWrapper.registerAssetProxyAsync(AssetProxyId.ERC20, erc20Proxy.address, owner); await exchangeWrapper.registerAssetProxyAsync(AssetProxyId.ERC721, erc721Proxy.address, owner); await web3Wrapper.awaitTransactionSuccessAsync( await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { from: owner, }), constants.AWAIT_TRANSACTION_MINED_MS, ); await web3Wrapper.awaitTransactionSuccessAsync( await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { from: owner, }), constants.AWAIT_TRANSACTION_MINED_MS, ); defaultMakerAssetAddress = erc20TokenA.address; defaultTakerAssetAddress = erc20TokenB.address; const defaultOrderParams = { ...constants.STATIC_ORDER_PARAMS, exchangeAddress: exchange.address, makerAddress, feeRecipientAddress, makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultMakerAssetAddress), takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultTakerAssetAddress), }; 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 = orderFactory.newSignedOrder(); }); it('should transfer the correct amounts when makerAssetAmount === takerAssetAmount', async () => { signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), }); const takerAssetFilledAmountBefore = await exchangeWrapper.getTakerAssetFilledAmountAsync( orderHashUtils.getOrderHashHex(signedOrder), ); expect(takerAssetFilledAmountBefore).to.be.bignumber.equal(0); const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); const makerAmountBoughtAfter = await exchangeWrapper.getTakerAssetFilledAmountAsync( orderHashUtils.getOrderHashHex(signedOrder), ); expect(makerAmountBoughtAfter).to.be.bignumber.equal(takerAssetFillAmount); const newBalances = await erc20Wrapper.getBalancesAsync(); const makerAssetFilledAmount = takerAssetFillAmount .times(signedOrder.makerAssetAmount) .dividedToIntegerBy(signedOrder.takerAssetAmount); const makerFeePaid = signedOrder.makerFee .times(makerAssetFilledAmount) .dividedToIntegerBy(signedOrder.makerAssetAmount); const takerFeePaid = signedOrder.takerFee .times(makerAssetFilledAmount) .dividedToIntegerBy(signedOrder.makerAssetAmount); expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFilledAmount), ); expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), ); expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][zrxToken.address].minus(makerFeePaid), ); expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), ); expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFilledAmount), ); expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][zrxToken.address].minus(takerFeePaid), ); expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFeePaid.add(takerFeePaid)), ); }); it('should transfer the correct amounts when makerAssetAmount > takerAssetAmount', async () => { signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), }); const takerAssetFilledAmountBefore = await exchangeWrapper.getTakerAssetFilledAmountAsync( orderHashUtils.getOrderHashHex(signedOrder), ); expect(takerAssetFilledAmountBefore).to.be.bignumber.equal(0); const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); const makerAmountBoughtAfter = await exchangeWrapper.getTakerAssetFilledAmountAsync( orderHashUtils.getOrderHashHex(signedOrder), ); expect(makerAmountBoughtAfter).to.be.bignumber.equal(takerAssetFillAmount); const newBalances = await erc20Wrapper.getBalancesAsync(); const makerAssetFilledAmount = takerAssetFillAmount .times(signedOrder.makerAssetAmount) .dividedToIntegerBy(signedOrder.takerAssetAmount); const makerFeePaid = signedOrder.makerFee .times(makerAssetFilledAmount) .dividedToIntegerBy(signedOrder.makerAssetAmount); const takerFeePaid = signedOrder.takerFee .times(makerAssetFilledAmount) .dividedToIntegerBy(signedOrder.makerAssetAmount); expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFilledAmount), ); expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), ); expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][zrxToken.address].minus(makerFeePaid), ); expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), ); expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFilledAmount), ); expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][zrxToken.address].minus(takerFeePaid), ); expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFeePaid.add(takerFeePaid)), ); }); it('should transfer the correct amounts when makerAssetAmount < takerAssetAmount', async () => { signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), }); const takerAssetFilledAmountBefore = await exchangeWrapper.getTakerAssetFilledAmountAsync( orderHashUtils.getOrderHashHex(signedOrder), ); expect(takerAssetFilledAmountBefore).to.be.bignumber.equal(0); const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); const makerAmountBoughtAfter = await exchangeWrapper.getTakerAssetFilledAmountAsync( orderHashUtils.getOrderHashHex(signedOrder), ); expect(makerAmountBoughtAfter).to.be.bignumber.equal(takerAssetFillAmount); const newBalances = await erc20Wrapper.getBalancesAsync(); const makerAssetFilledAmount = takerAssetFillAmount .times(signedOrder.makerAssetAmount) .dividedToIntegerBy(signedOrder.takerAssetAmount); const makerFeePaid = signedOrder.makerFee .times(makerAssetFilledAmount) .dividedToIntegerBy(signedOrder.makerAssetAmount); const takerFeePaid = signedOrder.takerFee .times(makerAssetFilledAmount) .dividedToIntegerBy(signedOrder.makerAssetAmount); expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFilledAmount), ); expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), ); expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][zrxToken.address].minus(makerFeePaid), ); expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), ); expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFilledAmount), ); expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][zrxToken.address].minus(takerFeePaid), ); expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFeePaid.add(takerFeePaid)), ); }); it('should transfer the correct amounts when taker is specified and order is claimed by taker', async () => { signedOrder = orderFactory.newSignedOrder({ takerAddress, makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), }); const takerAssetFilledAmountBefore = await exchangeWrapper.getTakerAssetFilledAmountAsync( orderHashUtils.getOrderHashHex(signedOrder), ); expect(takerAssetFilledAmountBefore).to.be.bignumber.equal(0); const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); const makerAmountBoughtAfter = await exchangeWrapper.getTakerAssetFilledAmountAsync( orderHashUtils.getOrderHashHex(signedOrder), ); const expectedMakerAmountBoughtAfter = takerAssetFillAmount.add(takerAssetFilledAmountBefore); expect(makerAmountBoughtAfter).to.be.bignumber.equal(expectedMakerAmountBoughtAfter); const newBalances = await erc20Wrapper.getBalancesAsync(); const makerAssetFilledAmount = takerAssetFillAmount .times(signedOrder.makerAssetAmount) .dividedToIntegerBy(signedOrder.takerAssetAmount); const makerFeePaid = signedOrder.makerFee .times(makerAssetFilledAmount) .dividedToIntegerBy(signedOrder.makerAssetAmount); const takerFeePaid = signedOrder.takerFee .times(makerAssetFilledAmount) .dividedToIntegerBy(signedOrder.makerAssetAmount); expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFilledAmount), ); expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), ); expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][zrxToken.address].minus(makerFeePaid), ); expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), ); expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultMakerAssetAddress].add(makerAssetFilledAmount), ); expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][zrxToken.address].minus(takerFeePaid), ); expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFeePaid.add(takerFeePaid)), ); }); it('should fill remaining value if takerAssetFillAmount > remaining takerAssetAmount', async () => { const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); const res = await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: signedOrder.takerAssetAmount, }); const log = res.logs[0] as LogWithDecodedArgs; expect(log.args.takerAssetFilledAmount).to.be.bignumber.equal( signedOrder.takerAssetAmount.minus(takerAssetFillAmount), ); const newBalances = await erc20Wrapper.getBalancesAsync(); expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultMakerAssetAddress].minus(signedOrder.makerAssetAmount), ); expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultTakerAssetAddress].add(signedOrder.takerAssetAmount), ); expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][zrxToken.address].minus(signedOrder.makerFee), ); expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultTakerAssetAddress].minus(signedOrder.takerAssetAmount), ); expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultMakerAssetAddress].add(signedOrder.makerAssetAmount), ); expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][zrxToken.address].minus(signedOrder.takerFee), ); expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][zrxToken.address].add( signedOrder.makerFee.add(signedOrder.takerFee), ), ); }); it('should log 1 event with the correct arguments when order has a feeRecipient', async () => { const divisor = 2; const res = await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: signedOrder.takerAssetAmount.div(divisor), }); expect(res.logs).to.have.length(1); const log = res.logs[0] as LogWithDecodedArgs; const logArgs = log.args; const expectedFilledMakerAssetAmount = signedOrder.makerAssetAmount.div(divisor); const expectedFilledTakerAssetAmount = signedOrder.takerAssetAmount.div(divisor); const expectedFeeMPaid = signedOrder.makerFee.div(divisor); const expectedFeeTPaid = signedOrder.takerFee.div(divisor); expect(signedOrder.makerAddress).to.be.equal(logArgs.makerAddress); expect(takerAddress).to.be.equal(logArgs.takerAddress); 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(expectedFilledMakerAssetAmount).to.be.bignumber.equal(logArgs.makerAssetFilledAmount); expect(expectedFilledTakerAssetAmount).to.be.bignumber.equal(logArgs.takerAssetFilledAmount); expect(expectedFeeMPaid).to.be.bignumber.equal(logArgs.makerFeePaid); expect(expectedFeeTPaid).to.be.bignumber.equal(logArgs.takerFeePaid); expect(orderHashUtils.getOrderHashHex(signedOrder)).to.be.equal(logArgs.orderHash); }); it('should throw when taker is specified and order is claimed by other', async () => { signedOrder = orderFactory.newSignedOrder({ takerAddress: feeRecipientAddress, makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(200), 18), }); return expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if signature is invalid', async () => { signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(10), 18), }); 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; return expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if makerAssetAmount is 0', async () => { signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(0), }); return expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if takerAssetAmount is 0', async () => { signedOrder = orderFactory.newSignedOrder({ takerAssetAmount: new BigNumber(0), }); return expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if takerAssetFillAmount is 0', async () => { signedOrder = orderFactory.newSignedOrder(); return expect( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: new BigNumber(0), }), ).to.be.rejectedWith(constants.REVERT); }); it('should throw if maker erc20Balances are too low to fill order', async () => { signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18), }); return expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if taker erc20Balances are too low to fill order', async () => { signedOrder = orderFactory.newSignedOrder({ takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100000), 18), }); return expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if maker allowances are too low to fill order', async () => { await web3Wrapper.awaitTransactionSuccessAsync( await erc20TokenA.approve.sendTransactionAsync(erc20Proxy.address, new BigNumber(0), { from: makerAddress, }), constants.AWAIT_TRANSACTION_MINED_MS, ); // HACK: `rejectWith` returns a "promise-like" type, but not an actual "Promise", so TSLint // complains, even though we do need to `await` it. So we disable the TSLint error below. // tslint:disable-next-line:await-promise await expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if taker allowances are too low to fill order', async () => { await web3Wrapper.awaitTransactionSuccessAsync( await erc20TokenB.approve.sendTransactionAsync(erc20Proxy.address, new BigNumber(0), { from: takerAddress, }), constants.AWAIT_TRANSACTION_MINED_MS, ); // HACK: `rejectWith` returns a "promise-like" type, but not an actual "Promise", so TSLint // complains, even though we do need to `await` it. So we disable the TSLint error below. // tslint:disable-next-line:await-promise await expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if an order is expired', async () => { signedOrder = orderFactory.newSignedOrder({ expirationTimeSeconds: new BigNumber(Math.floor((Date.now() - 10000) / 1000)), }); return expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if no value is filled', async () => { signedOrder = orderFactory.newSignedOrder(); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expect(exchangeWrapper.fillOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); }); describe('cancelOrder', () => { beforeEach(async () => { erc20Balances = await erc20Wrapper.getBalancesAsync(); signedOrder = orderFactory.newSignedOrder(); }); it('should throw if not sent by maker', async () => { return expect(exchangeWrapper.cancelOrderAsync(signedOrder, takerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if makerAssetAmount is 0', async () => { signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(0), }); return expect(exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if takerAssetAmount is 0', async () => { signedOrder = orderFactory.newSignedOrder({ takerAssetAmount: new BigNumber(0), }); return expect(exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should be able to cancel a full order', async () => { await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); return expect( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: signedOrder.takerAssetAmount.div(2), }), ).to.be.rejectedWith(constants.REVERT); }); it('should log 1 event with correct arguments', async () => { const divisor = 2; 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.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); return expect(exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if order is expired', async () => { signedOrder = orderFactory.newSignedOrder({ expirationTimeSeconds: new BigNumber(Math.floor((Date.now() - 10000) / 1000)), }); return expect(exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should throw if rounding error is greater than 0.1%', async () => { signedOrder = orderFactory.newSignedOrder({ 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); return expect( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: fillTakerAssetAmount2, }), ).to.be.rejectedWith(constants.REVERT); }); }); describe('cancelOrdersUpTo', () => { it('should fail to set makerEpoch less than current makerEpoch', async () => { const makerEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(makerEpoch, makerAddress); const lesserMakerEpoch = new BigNumber(0); return expect(exchangeWrapper.cancelOrdersUpToAsync(lesserMakerEpoch, makerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should fail to set makerEpoch equal to existing makerEpoch', async () => { const makerEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(makerEpoch, makerAddress); return expect(exchangeWrapper.cancelOrdersUpToAsync(makerEpoch, makerAddress)).to.be.rejectedWith( constants.REVERT, ); }); it('should cancel only orders with a makerEpoch less than existing makerEpoch', async () => { // Cancel all transactions with a makerEpoch less than 1 const makerEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(makerEpoch, makerAddress); // Create 3 orders with makerEpoch values: 0,1,2,3 // Since we cancelled with makerEpoch=1, orders with makerEpoch<=1 will not be processed erc20Balances = await erc20Wrapper.getBalancesAsync(); const signedOrders = [ orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(9), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(9), 18), salt: new BigNumber(0), }), orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(79), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(79), 18), salt: new BigNumber(1), }), orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(979), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(979), 18), salt: new BigNumber(2), }), orderFactory.newSignedOrder({ makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(7979), 18), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(7979), 18), salt: new BigNumber(3), }), ]; await exchangeWrapper.batchFillOrdersNoThrowAsync(signedOrders, takerAddress); const newBalances = await erc20Wrapper.getBalancesAsync(); const fillMakerAssetAmount = signedOrders[2].makerAssetAmount.add(signedOrders[3].makerAssetAmount); const fillTakerAssetAmount = signedOrders[2].takerAssetAmount.add(signedOrders[3].takerAssetAmount); const makerFee = signedOrders[2].makerFee.add(signedOrders[3].makerFee); const takerFee = signedOrders[2].takerFee.add(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].add(fillTakerAssetAmount), ); expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][zrxToken.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].add(fillMakerAssetAmount), ); expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][zrxToken.address].minus(takerFee), ); expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][zrxToken.address].add(makerFee.add(takerFee)), ); }); }); describe('Testing Exchange of ERC721 Tokens', () => { it('should successfully exchange a single token between the maker and taker (via fillOrder)', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; const takerAssetId = erc721TakerAssetIds[1]; signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(1), makerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, takerAssetId), }); // 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 res = await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); // Verify post-conditions const newOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); expect(newOwnerMakerAsset).to.be.bignumber.equal(takerAddress); const newOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(newOwnerTakerAsset).to.be.bignumber.equal(makerAddress); }); 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 = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(1), makerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, takerAssetId), }); // 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; return expect( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), ).to.be.rejectedWith(constants.REVERT); }); 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 = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(1), makerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, takerAssetId), }); // 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; return expect( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), ).to.be.rejectedWith(constants.REVERT); }); it('should throw when makerAssetAmount is greater than 1', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; const takerAssetId = erc721TakerAssetIds[0]; signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(2), takerAssetAmount: new BigNumber(1), makerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, takerAssetId), }); // 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; return expect( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), ).to.be.rejectedWith(constants.REVERT); }); it('should throw when takerAssetAmount is greater than 1', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; const takerAssetId = erc721TakerAssetIds[0]; signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(500), makerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, takerAssetId), }); // 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; return expect( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), ).to.be.rejectedWith(constants.REVERT); }); it('should throw on partial fill', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; const takerAssetId = erc721TakerAssetIds[0]; signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(0), makerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, takerAssetId), }); // 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; return expect( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), ).to.be.rejectedWith(constants.REVERT); }); it('should successfully fill order when makerAsset is ERC721 and takerAsset is ERC20', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(1), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), makerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultTakerAssetAddress), }); // Verify pre-conditions const initialOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); expect(initialOwnerMakerAsset).to.be.bignumber.equal(makerAddress); // Call Exchange erc20Balances = await erc20Wrapper.getBalancesAsync(); const takerAssetFillAmount = signedOrder.takerAssetAmount; await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); // Verify ERC721 token was transferred from Maker to Taker const newOwnerMakerAsset = await erc721Token.ownerOf.callAsync(makerAssetId); expect(newOwnerMakerAsset).to.be.bignumber.equal(takerAddress); // Verify ERC20 tokens were transferred from Taker to Maker & fees were paid correctly const newBalances = await erc20Wrapper.getBalancesAsync(); expect(newBalances[makerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultTakerAssetAddress].add(takerAssetFillAmount), ); expect(newBalances[takerAddress][defaultTakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultTakerAssetAddress].minus(takerAssetFillAmount), ); expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][zrxToken.address].minus(signedOrder.makerFee), ); expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][zrxToken.address].minus(signedOrder.takerFee), ); expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][zrxToken.address].add( signedOrder.makerFee.add(signedOrder.takerFee), ), ); }); it('should successfully fill order when makerAsset is ERC20 and takerAsset is ERC721', async () => { // Construct Exchange parameters const takerAssetId = erc721TakerAssetIds[0]; signedOrder = orderFactory.newSignedOrder({ takerAssetAmount: new BigNumber(1), makerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), takerAssetData: assetProxyUtils.encodeERC721ProxyData(erc721Token.address, takerAssetId), makerAssetData: assetProxyUtils.encodeERC20ProxyData(defaultMakerAssetAddress), }); // Verify pre-conditions const initialOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(initialOwnerTakerAsset).to.be.bignumber.equal(takerAddress); // Call Exchange erc20Balances = await erc20Wrapper.getBalancesAsync(); const takerAssetFillAmount = signedOrder.takerAssetAmount; await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }); // Verify ERC721 token was transferred from Taker to Maker const newOwnerTakerAsset = await erc721Token.ownerOf.callAsync(takerAssetId); expect(newOwnerTakerAsset).to.be.bignumber.equal(makerAddress); // Verify ERC20 tokens were transferred from Maker to Taker & fees were paid correctly const newBalances = await erc20Wrapper.getBalancesAsync(); expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[takerAddress][defaultMakerAssetAddress].add(signedOrder.makerAssetAmount), ); expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal( erc20Balances[makerAddress][defaultMakerAssetAddress].minus(signedOrder.makerAssetAmount), ); expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[makerAddress][zrxToken.address].minus(signedOrder.makerFee), ); expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[takerAddress][zrxToken.address].minus(signedOrder.takerFee), ); expect(newBalances[feeRecipientAddress][zrxToken.address]).to.be.bignumber.equal( erc20Balances[feeRecipientAddress][zrxToken.address].add( signedOrder.makerFee.add(signedOrder.takerFee), ), ); }); }); }); // tslint:disable-line:max-file-line-count