import { LogWithDecodedArgs, SignedOrder, TransactionReceiptWithDecodedLogs, ZeroEx } from '0x.js'; import { BlockchainLifecycle, devConstants, web3Factory } from '@0xproject/dev-utils'; import { BigNumber } from '@0xproject/utils'; import { Web3Wrapper } from '@0xproject/web3-wrapper'; import * as chai from 'chai'; import ethUtil = require('ethereumjs-util'); import * as Web3 from 'web3'; import { DummyTokenContract } from '../../src/contract_wrappers/generated/dummy_token'; import { ExchangeContract, LogCancelContractEventArgs, LogErrorContractEventArgs, LogFillContractEventArgs, } from '../../src/contract_wrappers/generated/exchange'; import { MaliciousTokenContract } from '../../src/contract_wrappers/generated/malicious_token'; import { TokenTransferProxyContract } from '../../src/contract_wrappers/generated/token_transfer_proxy'; import { artifacts } from '../../util/artifacts'; import { Balances } from '../../util/balances'; import { constants } from '../../util/constants'; import { crypto } from '../../util/crypto'; import { ExchangeWrapper } from '../../util/exchange_wrapper'; import { OrderFactory } from '../../util/order_factory'; import { BalancesByOwner, ContractName, ExchangeContractErrs } from '../../util/types'; import { chaiSetup } from '../utils/chai_setup'; import { defaults, provider, web3Wrapper } from '../utils/web3_wrapper'; chaiSetup.configure(); const expect = chai.expect; const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); describe('Exchange', () => { let maker: string; let tokenOwner: string; let taker: string; let feeRecipient: string; const INITIAL_BALANCE = ZeroEx.toBaseUnitAmount(new BigNumber(10000), 18); const INITIAL_ALLOWANCE = ZeroEx.toBaseUnitAmount(new BigNumber(10000), 18); let rep: DummyTokenContract; let dgd: DummyTokenContract; let zrx: DummyTokenContract; let exchange: ExchangeContract; let tokenTransferProxy: TokenTransferProxyContract; let signedOrder: SignedOrder; let balances: BalancesByOwner; let exWrapper: ExchangeWrapper; let dmyBalances: Balances; let orderFactory: OrderFactory; let zeroEx: ZeroEx; before(async () => { const accounts = await web3Wrapper.getAvailableAddressesAsync(); maker = accounts[0]; [tokenOwner, taker, feeRecipient] = accounts; [rep, dgd, zrx] = await Promise.all([ DummyTokenContract.deployFrom0xArtifactAsync( artifacts.DummyToken, provider, defaults, constants.DUMMY_TOKEN_NAME, constants.DUMMY_TOKEN_SYMBOL, constants.DUMMY_TOKEN_DECIMALS, constants.DUMMY_TOKEN_TOTAL_SUPPLY, ), DummyTokenContract.deployFrom0xArtifactAsync( artifacts.DummyToken, provider, defaults, constants.DUMMY_TOKEN_NAME, constants.DUMMY_TOKEN_SYMBOL, constants.DUMMY_TOKEN_DECIMALS, constants.DUMMY_TOKEN_TOTAL_SUPPLY, ), DummyTokenContract.deployFrom0xArtifactAsync( artifacts.DummyToken, provider, defaults, constants.DUMMY_TOKEN_NAME, constants.DUMMY_TOKEN_SYMBOL, constants.DUMMY_TOKEN_DECIMALS, constants.DUMMY_TOKEN_TOTAL_SUPPLY, ), ]); tokenTransferProxy = await TokenTransferProxyContract.deployFrom0xArtifactAsync( artifacts.TokenTransferProxy, provider, defaults, ); exchange = await ExchangeContract.deployFrom0xArtifactAsync( artifacts.Exchange, provider, defaults, zrx.address, tokenTransferProxy.address, ); await tokenTransferProxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { from: accounts[0] }); zeroEx = new ZeroEx(provider, { exchangeContractAddress: exchange.address, networkId: constants.TESTRPC_NETWORK_ID, }); exWrapper = new ExchangeWrapper(exchange, zeroEx); const defaultOrderParams = { exchangeContractAddress: exchange.address, maker, feeRecipient, makerTokenAddress: rep.address, takerTokenAddress: dgd.address, makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18), takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(200), 18), makerFee: ZeroEx.toBaseUnitAmount(new BigNumber(1), 18), takerFee: ZeroEx.toBaseUnitAmount(new BigNumber(1), 18), }; orderFactory = new OrderFactory(zeroEx, defaultOrderParams); dmyBalances = new Balances([rep, dgd, zrx], [maker, taker, feeRecipient]); await Promise.all([ rep.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: maker, }), rep.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: taker, }), rep.setBalance.sendTransactionAsync(maker, INITIAL_BALANCE, { from: tokenOwner }), rep.setBalance.sendTransactionAsync(taker, INITIAL_BALANCE, { from: tokenOwner }), dgd.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: maker, }), dgd.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: taker, }), dgd.setBalance.sendTransactionAsync(maker, INITIAL_BALANCE, { from: tokenOwner }), dgd.setBalance.sendTransactionAsync(taker, INITIAL_BALANCE, { from: tokenOwner }), zrx.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: maker, }), zrx.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: taker, }), zrx.setBalance.sendTransactionAsync(maker, INITIAL_BALANCE, { from: tokenOwner }), zrx.setBalance.sendTransactionAsync(taker, INITIAL_BALANCE, { from: tokenOwner }), ]); }); beforeEach(async () => { await blockchainLifecycle.startAsync(); }); afterEach(async () => { await blockchainLifecycle.revertAsync(); }); describe('internal functions', () => { it('should include transferViaTokenTransferProxy', () => { expect((exchange as any).transferViaTokenTransferProxy).to.be.undefined(); }); it('should include isTransferable', () => { expect((exchange as any).isTransferable).to.be.undefined(); }); it('should include getBalance', () => { expect((exchange as any).getBalance).to.be.undefined(); }); it('should include getAllowance', () => { expect((exchange as any).getAllowance).to.be.undefined(); }); }); describe('fillOrder', () => { beforeEach(async () => { balances = await dmyBalances.getAsync(); signedOrder = await orderFactory.newSignedOrderAsync(); }); it('should create an unfillable order', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: new BigNumber(1001), takerTokenAmount: new BigNumber(3), }); const filledTakerTokenAmountBefore = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountBefore).to.be.bignumber.equal(0); const fillTakerTokenAmount1 = new BigNumber(2); await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount: fillTakerTokenAmount1, }); const filledTakerTokenAmountAfter1 = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountAfter1).to.be.bignumber.equal(fillTakerTokenAmount1); const fillTakerTokenAmount2 = new BigNumber(1); await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount: fillTakerTokenAmount2, }); const filledTakerTokenAmountAfter2 = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountAfter2).to.be.bignumber.equal(filledTakerTokenAmountAfter1); }); it('should transfer the correct amounts when makerTokenAmount === takerTokenAmount', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18), takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18), }); const filledTakerTokenAmountBefore = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountBefore).to.be.bignumber.equal(0); const fillTakerTokenAmount = signedOrder.takerTokenAmount.div(2); await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount }); const filledTakerTokenAmountAfter = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountAfter).to.be.bignumber.equal(fillTakerTokenAmount); const newBalances = await dmyBalances.getAsync(); const fillMakerTokenAmount = fillTakerTokenAmount .times(signedOrder.makerTokenAmount) .dividedToIntegerBy(signedOrder.takerTokenAmount); const paidMakerFee = signedOrder.makerFee .times(fillMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); const paidTakerFee = signedOrder.takerFee .times(fillMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); expect(newBalances[maker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.makerTokenAddress].minus(fillMakerTokenAmount), ); expect(newBalances[maker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.takerTokenAddress].add(fillTakerTokenAmount), ); expect(newBalances[maker][zrx.address]).to.be.bignumber.equal( balances[maker][zrx.address].minus(paidMakerFee), ); expect(newBalances[taker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.takerTokenAddress].minus(fillTakerTokenAmount), ); expect(newBalances[taker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.makerTokenAddress].add(fillMakerTokenAmount), ); expect(newBalances[taker][zrx.address]).to.be.bignumber.equal( balances[taker][zrx.address].minus(paidTakerFee), ); expect(newBalances[feeRecipient][zrx.address]).to.be.bignumber.equal( balances[feeRecipient][zrx.address].add(paidMakerFee.add(paidTakerFee)), ); }); it('should transfer the correct amounts when makerTokenAmount > takerTokenAmount', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(200), 18), takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18), }); const filledTakerTokenAmountBefore = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountBefore).to.be.bignumber.equal(0); const fillTakerTokenAmount = signedOrder.takerTokenAmount.div(2); await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount }); const filledTakerTokenAmountAfter = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountAfter).to.be.bignumber.equal(fillTakerTokenAmount); const newBalances = await dmyBalances.getAsync(); const fillMakerTokenAmount = fillTakerTokenAmount .times(signedOrder.makerTokenAmount) .dividedToIntegerBy(signedOrder.takerTokenAmount); const paidMakerFee = signedOrder.makerFee .times(fillMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); const paidTakerFee = signedOrder.takerFee .times(fillMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); expect(newBalances[maker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.makerTokenAddress].minus(fillMakerTokenAmount), ); expect(newBalances[maker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.takerTokenAddress].add(fillTakerTokenAmount), ); expect(newBalances[maker][zrx.address]).to.be.bignumber.equal( balances[maker][zrx.address].minus(paidMakerFee), ); expect(newBalances[taker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.takerTokenAddress].minus(fillTakerTokenAmount), ); expect(newBalances[taker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.makerTokenAddress].add(fillMakerTokenAmount), ); expect(newBalances[taker][zrx.address]).to.be.bignumber.equal( balances[taker][zrx.address].minus(paidTakerFee), ); expect(newBalances[feeRecipient][zrx.address]).to.be.bignumber.equal( balances[feeRecipient][zrx.address].add(paidMakerFee.add(paidTakerFee)), ); }); it('should transfer the correct amounts when makerTokenAmount < takerTokenAmount', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18), takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(200), 18), }); const filledTakerTokenAmountBefore = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountBefore).to.be.bignumber.equal(0); const fillTakerTokenAmount = signedOrder.takerTokenAmount.div(2); await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount }); const filledTakerTokenAmountAfter = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountAfter).to.be.bignumber.equal(fillTakerTokenAmount); const newBalances = await dmyBalances.getAsync(); const fillMakerTokenAmount = fillTakerTokenAmount .times(signedOrder.makerTokenAmount) .dividedToIntegerBy(signedOrder.takerTokenAmount); const paidMakerFee = signedOrder.makerFee .times(fillMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); const paidTakerFee = signedOrder.takerFee .times(fillMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); expect(newBalances[maker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.makerTokenAddress].minus(fillMakerTokenAmount), ); expect(newBalances[maker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.takerTokenAddress].add(fillTakerTokenAmount), ); expect(newBalances[maker][zrx.address]).to.be.bignumber.equal( balances[maker][zrx.address].minus(paidMakerFee), ); expect(newBalances[taker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.takerTokenAddress].minus(fillTakerTokenAmount), ); expect(newBalances[taker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.makerTokenAddress].add(fillMakerTokenAmount), ); expect(newBalances[taker][zrx.address]).to.be.bignumber.equal( balances[taker][zrx.address].minus(paidTakerFee), ); expect(newBalances[feeRecipient][zrx.address]).to.be.bignumber.equal( balances[feeRecipient][zrx.address].add(paidMakerFee.add(paidTakerFee)), ); }); it('should transfer the correct amounts when taker is specified and order is claimed by taker', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ taker, makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18), takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(200), 18), }); const filledTakerTokenAmountBefore = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); expect(filledTakerTokenAmountBefore).to.be.bignumber.equal(0); const fillTakerTokenAmount = signedOrder.takerTokenAmount.div(2); await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount }); const filledTakerTokenAmountAfter = await zeroEx.exchange.getFilledTakerAmountAsync( ZeroEx.getOrderHashHex(signedOrder), ); const expectedFillAmountTAfter = fillTakerTokenAmount.add(filledTakerTokenAmountBefore); expect(filledTakerTokenAmountAfter).to.be.bignumber.equal(expectedFillAmountTAfter); const newBalances = await dmyBalances.getAsync(); const fillMakerTokenAmount = fillTakerTokenAmount .times(signedOrder.makerTokenAmount) .dividedToIntegerBy(signedOrder.takerTokenAmount); const paidMakerFee = signedOrder.makerFee .times(fillMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); const paidTakerFee = signedOrder.takerFee .times(fillMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); expect(newBalances[maker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.makerTokenAddress].minus(fillMakerTokenAmount), ); expect(newBalances[maker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.takerTokenAddress].add(fillTakerTokenAmount), ); expect(newBalances[maker][zrx.address]).to.be.bignumber.equal( balances[maker][zrx.address].minus(paidMakerFee), ); expect(newBalances[taker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.takerTokenAddress].minus(fillTakerTokenAmount), ); expect(newBalances[taker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.makerTokenAddress].add(fillMakerTokenAmount), ); expect(newBalances[taker][zrx.address]).to.be.bignumber.equal( balances[taker][zrx.address].minus(paidTakerFee), ); expect(newBalances[feeRecipient][zrx.address]).to.be.bignumber.equal( balances[feeRecipient][zrx.address].add(paidMakerFee.add(paidTakerFee)), ); }); it('should fill remaining value if fillTakerTokenAmount > remaining takerTokenAmount', async () => { const fillTakerTokenAmount = signedOrder.takerTokenAmount.div(2); await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount }); const res = await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount: signedOrder.takerTokenAmount, }); const log = res.logs[0] as LogWithDecodedArgs; expect(log.args.filledTakerTokenAmount).to.be.bignumber.equal( signedOrder.takerTokenAmount.minus(fillTakerTokenAmount), ); const newBalances = await dmyBalances.getAsync(); expect(newBalances[maker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.makerTokenAddress].minus(signedOrder.makerTokenAmount), ); expect(newBalances[maker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.takerTokenAddress].add(signedOrder.takerTokenAmount), ); expect(newBalances[maker][zrx.address]).to.be.bignumber.equal( balances[maker][zrx.address].minus(signedOrder.makerFee), ); expect(newBalances[taker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.takerTokenAddress].minus(signedOrder.takerTokenAmount), ); expect(newBalances[taker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.makerTokenAddress].add(signedOrder.makerTokenAmount), ); expect(newBalances[taker][zrx.address]).to.be.bignumber.equal( balances[taker][zrx.address].minus(signedOrder.takerFee), ); expect(newBalances[feeRecipient][zrx.address]).to.be.bignumber.equal( balances[feeRecipient][zrx.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 exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount: signedOrder.takerTokenAmount.div(divisor), }); expect(res.logs).to.have.length(1); const logArgs = (res.logs[0] as LogWithDecodedArgs).args; const expectedFilledMakerTokenAmount = signedOrder.makerTokenAmount.div(divisor); const expectedFilledTakerTokenAmount = signedOrder.takerTokenAmount.div(divisor); const expectedFeeMPaid = signedOrder.makerFee.div(divisor); const expectedFeeTPaid = signedOrder.takerFee.div(divisor); const tokensHashBuff = crypto.solSHA3([signedOrder.makerTokenAddress, signedOrder.takerTokenAddress]); const expectedTokens = ethUtil.bufferToHex(tokensHashBuff); expect(signedOrder.maker).to.be.equal(logArgs.maker); expect(taker).to.be.equal(logArgs.taker); expect(signedOrder.feeRecipient).to.be.equal(logArgs.feeRecipient); expect(signedOrder.makerTokenAddress).to.be.equal(logArgs.makerToken); expect(signedOrder.takerTokenAddress).to.be.equal(logArgs.takerToken); expect(expectedFilledMakerTokenAmount).to.be.bignumber.equal(logArgs.filledMakerTokenAmount); expect(expectedFilledTakerTokenAmount).to.be.bignumber.equal(logArgs.filledTakerTokenAmount); expect(expectedFeeMPaid).to.be.bignumber.equal(logArgs.paidMakerFee); expect(expectedFeeTPaid).to.be.bignumber.equal(logArgs.paidTakerFee); expect(expectedTokens).to.be.equal(logArgs.tokens); expect(ZeroEx.getOrderHashHex(signedOrder)).to.be.equal(logArgs.orderHash); }); it('should log 1 event with the correct arguments when order has no feeRecipient', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ feeRecipient: ZeroEx.NULL_ADDRESS, }); const divisor = 2; const res = await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount: signedOrder.takerTokenAmount.div(divisor), }); expect(res.logs).to.have.length(1); const logArgs = (res.logs[0] as LogWithDecodedArgs).args; const expectedFilledMakerTokenAmount = signedOrder.makerTokenAmount.div(divisor); const expectedFilledTakerTokenAmount = signedOrder.takerTokenAmount.div(divisor); const expectedFeeMPaid = new BigNumber(0); const expectedFeeTPaid = new BigNumber(0); const tokensHashBuff = crypto.solSHA3([signedOrder.makerTokenAddress, signedOrder.takerTokenAddress]); const expectedTokens = ethUtil.bufferToHex(tokensHashBuff); expect(signedOrder.maker).to.be.equal(logArgs.maker); expect(taker).to.be.equal(logArgs.taker); expect(signedOrder.feeRecipient).to.be.equal(logArgs.feeRecipient); expect(signedOrder.makerTokenAddress).to.be.equal(logArgs.makerToken); expect(signedOrder.takerTokenAddress).to.be.equal(logArgs.takerToken); expect(expectedFilledMakerTokenAmount).to.be.bignumber.equal(logArgs.filledMakerTokenAmount); expect(expectedFilledTakerTokenAmount).to.be.bignumber.equal(logArgs.filledTakerTokenAmount); expect(expectedFeeMPaid).to.be.bignumber.equal(logArgs.paidMakerFee); expect(expectedFeeTPaid).to.be.bignumber.equal(logArgs.paidTakerFee); expect(expectedTokens).to.be.equal(logArgs.tokens); expect(ZeroEx.getOrderHashHex(signedOrder)).to.be.equal(logArgs.orderHash); }); it('should throw when taker is specified and order is claimed by other', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ taker: feeRecipient, makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100), 18), takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(200), 18), }); return expect(exWrapper.fillOrderAsync(signedOrder, taker)).to.be.rejectedWith(constants.REVERT); }); it('should throw if signature is invalid', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(10), 18), }); signedOrder.ecSignature.r = ethUtil.bufferToHex(ethUtil.sha3('invalidR')); signedOrder.ecSignature.s = ethUtil.bufferToHex(ethUtil.sha3('invalidS')); return expect(exWrapper.fillOrderAsync(signedOrder, taker)).to.be.rejectedWith(constants.REVERT); }); it('should throw if makerTokenAmount is 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: new BigNumber(0), }); return expect(exWrapper.fillOrderAsync(signedOrder, taker)).to.be.rejectedWith(constants.REVERT); }); it('should throw if takerTokenAmount is 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ takerTokenAmount: new BigNumber(0), }); return expect(exWrapper.fillOrderAsync(signedOrder, taker)).to.be.rejectedWith(constants.REVERT); }); it('should throw if fillTakerTokenAmount is 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync(); return expect( exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount: new BigNumber(0), }), ).to.be.rejectedWith(constants.REVERT); }); it('should not change balances if maker balances are too low to fill order and \ shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100000), 18), }); await exWrapper.fillOrderAsync(signedOrder, taker); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should throw if maker balances are too low to fill order and \ shouldThrowOnInsufficientBalanceOrAllowance = true', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100000), 18), }); return expect( exWrapper.fillOrderAsync(signedOrder, taker, { shouldThrowOnInsufficientBalanceOrAllowance: true, }), ).to.be.rejectedWith(constants.REVERT); }); it('should not change balances if taker balances are too low to fill order and \ shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100000), 18), }); await exWrapper.fillOrderAsync(signedOrder, taker); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should throw if taker balances are too low to fill order and \ shouldThrowOnInsufficientBalanceOrAllowance = true', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(100000), 18), }); return expect( exWrapper.fillOrderAsync(signedOrder, taker, { shouldThrowOnInsufficientBalanceOrAllowance: true, }), ).to.be.rejectedWith(constants.REVERT); }); it('should not change balances if maker allowances are too low to fill order and \ shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { await rep.approve.sendTransactionAsync(tokenTransferProxy.address, new BigNumber(0), { from: maker }); await exWrapper.fillOrderAsync(signedOrder, taker); await rep.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: maker, }); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should throw if maker allowances are too low to fill order and \ shouldThrowOnInsufficientBalanceOrAllowance = true', async () => { await rep.approve.sendTransactionAsync(tokenTransferProxy.address, new BigNumber(0), { from: maker }); expect( exWrapper.fillOrderAsync(signedOrder, taker, { shouldThrowOnInsufficientBalanceOrAllowance: true, }), ).to.be.rejectedWith(constants.REVERT); await rep.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: maker, }); }); it('should not change balances if taker allowances are too low to fill order and \ shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { await dgd.approve.sendTransactionAsync(tokenTransferProxy.address, new BigNumber(0), { from: taker }); await exWrapper.fillOrderAsync(signedOrder, taker); await dgd.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: taker, }); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should throw if taker allowances are too low to fill order and \ shouldThrowOnInsufficientBalanceOrAllowance = true', async () => { await dgd.approve.sendTransactionAsync(tokenTransferProxy.address, new BigNumber(0), { from: taker }); expect( exWrapper.fillOrderAsync(signedOrder, taker, { shouldThrowOnInsufficientBalanceOrAllowance: true, }), ).to.be.rejectedWith(constants.REVERT); await dgd.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: taker, }); }); it('should not change balances if makerTokenAddress is ZRX, makerTokenAmount + makerFee > maker balance, \ and shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { const makerZRXBalance = new BigNumber(balances[maker][zrx.address]); signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAddress: zrx.address, makerTokenAmount: makerZRXBalance, makerFee: new BigNumber(1), }); await exWrapper.fillOrderAsync(signedOrder, taker); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should not change balances if makerTokenAddress is ZRX, makerTokenAmount + makerFee > maker allowance, \ and shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { const makerZRXAllowance = await zrx.allowance.callAsync(maker, tokenTransferProxy.address); signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAddress: zrx.address, makerTokenAmount: new BigNumber(makerZRXAllowance), makerFee: new BigNumber(1), }); await exWrapper.fillOrderAsync(signedOrder, taker); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should not change balances if takerTokenAddress is ZRX, takerTokenAmount + takerFee > taker balance, \ and shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { const takerZRXBalance = new BigNumber(balances[taker][zrx.address]); signedOrder = await orderFactory.newSignedOrderAsync({ takerTokenAddress: zrx.address, takerTokenAmount: takerZRXBalance, takerFee: new BigNumber(1), }); await exWrapper.fillOrderAsync(signedOrder, taker); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should not change balances if takerTokenAddress is ZRX, takerTokenAmount + takerFee > taker allowance, \ and shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { const takerZRXAllowance = await zrx.allowance.callAsync(taker, tokenTransferProxy.address); signedOrder = await orderFactory.newSignedOrderAsync({ takerTokenAddress: zrx.address, takerTokenAmount: new BigNumber(takerZRXAllowance), takerFee: new BigNumber(1), }); await exWrapper.fillOrderAsync(signedOrder, taker); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should throw if getBalance or getAllowance attempts to change state and \ shouldThrowOnInsufficientBalanceOrAllowance = false', async () => { const maliciousToken = await MaliciousTokenContract.deployFrom0xArtifactAsync( artifacts.MaliciousToken, provider, defaults, ); await maliciousToken.approve.sendTransactionAsync(tokenTransferProxy.address, INITIAL_ALLOWANCE, { from: taker, }); signedOrder = await orderFactory.newSignedOrderAsync({ takerTokenAddress: maliciousToken.address, }); return expect( exWrapper.fillOrderAsync(signedOrder, taker, { shouldThrowOnInsufficientBalanceOrAllowance: false, }), ).to.be.rejectedWith(constants.REVERT); }); it('should not change balances if an order is expired', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ expirationUnixTimestampSec: new BigNumber(Math.floor((Date.now() - 10000) / 1000)), }); await exWrapper.fillOrderAsync(signedOrder, taker); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should log an error event if an order is expired', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ expirationUnixTimestampSec: new BigNumber(Math.floor((Date.now() - 10000) / 1000)), }); const res = await exWrapper.fillOrderAsync(signedOrder, taker); expect(res.logs).to.have.length(1); const log = res.logs[0] as LogWithDecodedArgs; const errCode = log.args.errorId; expect(errCode).to.be.equal(ExchangeContractErrs.ERROR_ORDER_EXPIRED); }); it('should log an error event if no value is filled', async () => { signedOrder = await orderFactory.newSignedOrderAsync({}); await exWrapper.fillOrderAsync(signedOrder, taker); const res = await exWrapper.fillOrderAsync(signedOrder, taker); expect(res.logs).to.have.length(1); const log = res.logs[0] as LogWithDecodedArgs; const errCode = log.args.errorId; expect(errCode).to.be.equal(ExchangeContractErrs.ERROR_ORDER_FULLY_FILLED_OR_CANCELLED); }); }); describe('cancelOrder', () => { beforeEach(async () => { balances = await dmyBalances.getAsync(); signedOrder = await orderFactory.newSignedOrderAsync(); }); it('should throw if not sent by maker', async () => { return expect(exWrapper.cancelOrderAsync(signedOrder, taker)).to.be.rejectedWith(constants.REVERT); }); it('should throw if makerTokenAmount is 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ makerTokenAmount: new BigNumber(0), }); return expect(exWrapper.cancelOrderAsync(signedOrder, maker)).to.be.rejectedWith(constants.REVERT); }); it('should throw if takerTokenAmount is 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ takerTokenAmount: new BigNumber(0), }); return expect(exWrapper.cancelOrderAsync(signedOrder, maker)).to.be.rejectedWith(constants.REVERT); }); it('should throw if cancelTakerTokenAmount is 0', async () => { signedOrder = await orderFactory.newSignedOrderAsync(); return expect( exWrapper.cancelOrderAsync(signedOrder, maker, { cancelTakerTokenAmount: new BigNumber(0), }), ).to.be.rejectedWith(constants.REVERT); }); it('should be able to cancel a full order', async () => { await exWrapper.cancelOrderAsync(signedOrder, maker); await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount: signedOrder.takerTokenAmount.div(2), }); const newBalances = await dmyBalances.getAsync(); expect(newBalances).to.be.deep.equal(balances); }); it('should be able to cancel part of an order', async () => { const cancelTakerTokenAmount = signedOrder.takerTokenAmount.div(2); await exWrapper.cancelOrderAsync(signedOrder, maker, { cancelTakerTokenAmount, }); const res = await exWrapper.fillOrderAsync(signedOrder, taker, { fillTakerTokenAmount: signedOrder.takerTokenAmount, }); const log = res.logs[0] as LogWithDecodedArgs; expect(log.args.filledTakerTokenAmount).to.be.bignumber.equal( signedOrder.takerTokenAmount.minus(cancelTakerTokenAmount), ); const newBalances = await dmyBalances.getAsync(); const cancelMakerTokenAmount = cancelTakerTokenAmount .times(signedOrder.makerTokenAmount) .dividedToIntegerBy(signedOrder.takerTokenAmount); const paidMakerFee = signedOrder.makerFee .times(cancelMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); const paidTakerFee = signedOrder.takerFee .times(cancelMakerTokenAmount) .dividedToIntegerBy(signedOrder.makerTokenAmount); expect(newBalances[maker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.makerTokenAddress].minus(cancelMakerTokenAmount), ); expect(newBalances[maker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[maker][signedOrder.takerTokenAddress].add(cancelTakerTokenAmount), ); expect(newBalances[maker][zrx.address]).to.be.bignumber.equal( balances[maker][zrx.address].minus(paidMakerFee), ); expect(newBalances[taker][signedOrder.takerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.takerTokenAddress].minus(cancelTakerTokenAmount), ); expect(newBalances[taker][signedOrder.makerTokenAddress]).to.be.bignumber.equal( balances[taker][signedOrder.makerTokenAddress].add(cancelMakerTokenAmount), ); expect(newBalances[taker][zrx.address]).to.be.bignumber.equal( balances[taker][zrx.address].minus(paidTakerFee), ); expect(newBalances[feeRecipient][zrx.address]).to.be.bignumber.equal( balances[feeRecipient][zrx.address].add(paidMakerFee.add(paidTakerFee)), ); }); it('should log 1 event with correct arguments', async () => { const divisor = 2; const res = await exWrapper.cancelOrderAsync(signedOrder, maker, { cancelTakerTokenAmount: signedOrder.takerTokenAmount.div(divisor), }); expect(res.logs).to.have.length(1); const log = res.logs[0] as LogWithDecodedArgs; const logArgs = log.args; const expectedCancelledMakerTokenAmount = signedOrder.makerTokenAmount.div(divisor); const expectedCancelledTakerTokenAmount = signedOrder.takerTokenAmount.div(divisor); const tokensHashBuff = crypto.solSHA3([signedOrder.makerTokenAddress, signedOrder.takerTokenAddress]); const expectedTokens = ethUtil.bufferToHex(tokensHashBuff); expect(signedOrder.maker).to.be.equal(logArgs.maker); expect(signedOrder.feeRecipient).to.be.equal(logArgs.feeRecipient); expect(signedOrder.makerTokenAddress).to.be.equal(logArgs.makerToken); expect(signedOrder.takerTokenAddress).to.be.equal(logArgs.takerToken); expect(expectedCancelledMakerTokenAmount).to.be.bignumber.equal(logArgs.cancelledMakerTokenAmount); expect(expectedCancelledTakerTokenAmount).to.be.bignumber.equal(logArgs.cancelledTakerTokenAmount); expect(expectedTokens).to.be.equal(logArgs.tokens); expect(ZeroEx.getOrderHashHex(signedOrder)).to.be.equal(logArgs.orderHash); }); it('should not log events if no value is cancelled', async () => { await exWrapper.cancelOrderAsync(signedOrder, maker); const res = await exWrapper.cancelOrderAsync(signedOrder, maker); expect(res.logs).to.have.length(1); const log = res.logs[0] as LogWithDecodedArgs; const errCode = log.args.errorId; expect(errCode).to.be.equal(ExchangeContractErrs.ERROR_ORDER_FULLY_FILLED_OR_CANCELLED); }); it('should not log events if order is expired', async () => { signedOrder = await orderFactory.newSignedOrderAsync({ expirationUnixTimestampSec: new BigNumber(Math.floor((Date.now() - 10000) / 1000)), }); const res = await exWrapper.cancelOrderAsync(signedOrder, maker); expect(res.logs).to.have.length(1); const log = res.logs[0] as LogWithDecodedArgs; const errCode = log.args.errorId; expect(errCode).to.be.equal(ExchangeContractErrs.ERROR_ORDER_EXPIRED); }); }); }); // tslint:disable-line:max-file-line-count