import 'mocha'; import * as _ from 'lodash'; import * as chai from 'chai'; import * as Web3 from 'web3'; import * as BigNumber from 'bignumber.js'; import {chaiSetup} from './utils/chai_setup'; import ChaiBigNumber = require('chai-bignumber'); import promisify = require('es6-promisify'); import {web3Factory} from './utils/web3_factory'; import {BlockchainLifecycle} from './utils/blockchain_lifecycle'; import { ZeroEx, Token, SignedOrder, SubscriptionOpts, ExchangeEvents, ContractEvent, ExchangeContractErrs, OrderCancellationRequest, OrderFillRequest, LogFillContractEventArgs, } from '../src'; import {DoneCallback} from '../src/types'; import {FillScenarios} from './utils/fill_scenarios'; import {TokenUtils} from './utils/token_utils'; import {assert} from '../src/utils/assert'; import {ProxyWrapper} from '../src/contract_wrappers/proxy_wrapper'; chaiSetup.configure(); const expect = chai.expect; const blockchainLifecycle = new BlockchainLifecycle(); const NON_EXISTENT_ORDER_HASH = '0x79370342234e7acd6bbeac335bd3bb1d368383294b64b8160a00f4060e4d3777'; describe('ExchangeWrapper', () => { let web3: Web3; let zeroEx: ZeroEx; let tokenUtils: TokenUtils; let tokens: Token[]; let userAddresses: string[]; let zrxTokenAddress: string; let fillScenarios: FillScenarios; let exchangeContractAddress: string; before(async () => { web3 = web3Factory.create(); zeroEx = new ZeroEx(web3.currentProvider); exchangeContractAddress = await zeroEx.exchange.getContractAddressAsync(); userAddresses = await promisify(web3.eth.getAccounts)(); tokens = await zeroEx.tokenRegistry.getTokensAsync(); tokenUtils = new TokenUtils(tokens); zrxTokenAddress = tokenUtils.getProtocolTokenOrThrow().address; fillScenarios = new FillScenarios(zeroEx, userAddresses, tokens, zrxTokenAddress, exchangeContractAddress); }); beforeEach(async () => { await blockchainLifecycle.startAsync(); }); afterEach(async () => { await blockchainLifecycle.revertAsync(); }); describe('fillOrKill order(s)', () => { let makerTokenAddress: string; let takerTokenAddress: string; let coinbase: string; let makerAddress: string; let takerAddress: string; let feeRecipient: string; const fillTakerAmount = new BigNumber(5); before(async () => { [coinbase, makerAddress, takerAddress, feeRecipient] = userAddresses; tokens = await zeroEx.tokenRegistry.getTokensAsync(); const [makerToken, takerToken] = tokenUtils.getNonProtocolTokens(); makerTokenAddress = makerToken.address; takerTokenAddress = takerToken.address; }); describe('#batchFillOrKillAsync', () => { it('successfuly batch fillOrKill', async () => { const fillableAmount = new BigNumber(5); const partialFillTakerAmount = new BigNumber(2); const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const anotherSignedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const orderFillOrKillRequests = [ { signedOrder, fillTakerAmount: partialFillTakerAmount, }, { signedOrder: anotherSignedOrder, fillTakerAmount: partialFillTakerAmount, }, ]; await zeroEx.exchange.batchFillOrKillAsync(orderFillOrKillRequests, takerAddress); }); }); describe('#fillOrKillOrderAsync', () => { describe('failed fillOrKill', () => { it('should throw if remaining fillAmount is less then the desired fillAmount', async () => { const fillableAmount = new BigNumber(5); const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const tooLargeFillAmount = new BigNumber(7); const fillAmountDifference = tooLargeFillAmount.minus(fillableAmount); await zeroEx.token.transferAsync(takerTokenAddress, coinbase, takerAddress, fillAmountDifference); await zeroEx.token.setProxyAllowanceAsync(takerTokenAddress, takerAddress, tooLargeFillAmount); await zeroEx.token.transferAsync(makerTokenAddress, coinbase, makerAddress, fillAmountDifference); await zeroEx.token.setProxyAllowanceAsync(makerTokenAddress, makerAddress, tooLargeFillAmount); return expect(zeroEx.exchange.fillOrKillOrderAsync( signedOrder, tooLargeFillAmount, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientRemainingFillAmount); }); }); describe('successful fills', () => { it('should fill a valid order', async () => { const fillableAmount = new BigNumber(5); const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, makerAddress)) .to.be.bignumber.equal(fillableAmount); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, makerAddress)) .to.be.bignumber.equal(0); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, takerAddress)) .to.be.bignumber.equal(0); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, takerAddress)) .to.be.bignumber.equal(fillableAmount); await zeroEx.exchange.fillOrKillOrderAsync(signedOrder, fillTakerAmount, takerAddress); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, makerAddress)) .to.be.bignumber.equal(fillableAmount.minus(fillTakerAmount)); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, makerAddress)) .to.be.bignumber.equal(fillTakerAmount); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, takerAddress)) .to.be.bignumber.equal(fillTakerAmount); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, takerAddress)) .to.be.bignumber.equal(fillableAmount.minus(fillTakerAmount)); }); it('should partially fill a valid order', async () => { const fillableAmount = new BigNumber(5); const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const partialFillAmount = new BigNumber(3); await zeroEx.exchange.fillOrKillOrderAsync(signedOrder, partialFillAmount, takerAddress); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, makerAddress)) .to.be.bignumber.equal(fillableAmount.minus(partialFillAmount)); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, makerAddress)) .to.be.bignumber.equal(partialFillAmount); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, takerAddress)) .to.be.bignumber.equal(partialFillAmount); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, takerAddress)) .to.be.bignumber.equal(fillableAmount.minus(partialFillAmount)); }); }); }); }); describe('fill order(s)', () => { let makerTokenAddress: string; let takerTokenAddress: string; let coinbase: string; let makerAddress: string; let takerAddress: string; let feeRecipient: string; const fillableAmount = new BigNumber(5); const fillTakerAmount = new BigNumber(5); const shouldCheckTransfer = false; before(async () => { [coinbase, makerAddress, takerAddress, feeRecipient] = userAddresses; tokens = await zeroEx.tokenRegistry.getTokensAsync(); const [makerToken, takerToken] = tokenUtils.getNonProtocolTokens(); makerTokenAddress = makerToken.address; takerTokenAddress = takerToken.address; }); describe('#fillOrderAsync', () => { describe('failed fills', () => { it('should throw when the fill amount is zero', async () => { const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const zeroFillAmount = new BigNumber(0); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, zeroFillAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.OrderRemainingFillAmountZero); }); it('should throw when sender is not a taker', async () => { const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const nonTakerAddress = userAddresses[6]; return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, nonTakerAddress, )).to.be.rejectedWith(ExchangeContractErrs.TransactionSenderIsNotFillOrderTaker); }); it('should throw when order is expired', async () => { const expirationInPast = new BigNumber(1496826058); // 7th Jun 2017 const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, expirationInPast, ); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.OrderFillExpired); }); describe('should throw when not enough balance or allowance to fulfill the order', () => { const balanceToSubtractFromMaker = new BigNumber(3); const lackingAllowance = new BigNumber(3); let signedOrder: SignedOrder; beforeEach('create fillable signed order', async () => { signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); }); it('should throw when taker balance is less than fill amount', async () => { await zeroEx.token.transferAsync( takerTokenAddress, takerAddress, coinbase, balanceToSubtractFromMaker, ); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientTakerBalance); }); it('should throw when taker allowance is less than fill amount', async () => { const newAllowanceWhichIsLessThanFillAmount = fillTakerAmount.minus(lackingAllowance); await zeroEx.token.setProxyAllowanceAsync(takerTokenAddress, takerAddress, newAllowanceWhichIsLessThanFillAmount); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientTakerAllowance); }); it('should throw when maker balance is less than maker fill amount', async () => { await zeroEx.token.transferAsync( makerTokenAddress, makerAddress, coinbase, balanceToSubtractFromMaker, ); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientMakerBalance); }); it('should throw when maker allowance is less than maker fill amount', async () => { const newAllowanceWhichIsLessThanFillAmount = fillTakerAmount.minus(lackingAllowance); await zeroEx.token.setProxyAllowanceAsync(makerTokenAddress, makerAddress, newAllowanceWhichIsLessThanFillAmount); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientMakerAllowance); }); }); it('should throw when there a rounding error would have occurred', async () => { const makerAmount = new BigNumber(3); const takerAmount = new BigNumber(5); const signedOrder = await fillScenarios.createAsymmetricFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, makerAmount, takerAmount, ); const fillTakerAmountThatCausesRoundingError = new BigNumber(3); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmountThatCausesRoundingError, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.OrderFillRoundingError); }); describe('should throw when not enough balance or allowance to pay fees', () => { const makerFee = new BigNumber(2); const takerFee = new BigNumber(2); let signedOrder: SignedOrder; beforeEach('setup', async () => { signedOrder = await fillScenarios.createFillableSignedOrderWithFeesAsync( makerTokenAddress, takerTokenAddress, makerFee, takerFee, makerAddress, takerAddress, fillableAmount, feeRecipient, ); }); it('should throw when maker doesn\'t have enough balance to pay fees', async () => { const balanceToSubtractFromMaker = new BigNumber(1); await zeroEx.token.transferAsync( zrxTokenAddress, makerAddress, coinbase, balanceToSubtractFromMaker, ); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientMakerFeeBalance); }); it('should throw when maker doesn\'t have enough allowance to pay fees', async () => { const newAllowanceWhichIsLessThanFees = makerFee.minus(1); await zeroEx.token.setProxyAllowanceAsync(zrxTokenAddress, makerAddress, newAllowanceWhichIsLessThanFees); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientMakerFeeAllowance); }); it('should throw when taker doesn\'t have enough balance to pay fees', async () => { const balanceToSubtractFromTaker = new BigNumber(1); await zeroEx.token.transferAsync( zrxTokenAddress, takerAddress, coinbase, balanceToSubtractFromTaker, ); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientTakerFeeBalance); }); it('should throw when taker doesn\'t have enough allowance to pay fees', async () => { const newAllowanceWhichIsLessThanFees = makerFee.minus(1); await zeroEx.token.setProxyAllowanceAsync(zrxTokenAddress, takerAddress, newAllowanceWhichIsLessThanFees); return expect(zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress, )).to.be.rejectedWith(ExchangeContractErrs.InsufficientTakerFeeAllowance); }); }); }); describe('successful fills', () => { it('should fill a valid order', async () => { const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, makerAddress)) .to.be.bignumber.equal(fillableAmount); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, makerAddress)) .to.be.bignumber.equal(0); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, takerAddress)) .to.be.bignumber.equal(0); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, takerAddress)) .to.be.bignumber.equal(fillableAmount); await zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, makerAddress)) .to.be.bignumber.equal(fillableAmount.minus(fillTakerAmount)); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, makerAddress)) .to.be.bignumber.equal(fillTakerAmount); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, takerAddress)) .to.be.bignumber.equal(fillTakerAmount); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, takerAddress)) .to.be.bignumber.equal(fillableAmount.minus(fillTakerAmount)); }); it('should partially fill the valid order', async () => { const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const partialFillAmount = new BigNumber(3); await zeroEx.exchange.fillOrderAsync( signedOrder, partialFillAmount, shouldCheckTransfer, takerAddress); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, makerAddress)) .to.be.bignumber.equal(fillableAmount.minus(partialFillAmount)); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, makerAddress)) .to.be.bignumber.equal(partialFillAmount); expect(await zeroEx.token.getBalanceAsync(makerTokenAddress, takerAddress)) .to.be.bignumber.equal(partialFillAmount); expect(await zeroEx.token.getBalanceAsync(takerTokenAddress, takerAddress)) .to.be.bignumber.equal(fillableAmount.minus(partialFillAmount)); }); it('should return filled amount', async () => { const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const partialFillAmount = new BigNumber(3); const filledAmount = await zeroEx.exchange.fillOrderAsync( signedOrder, partialFillAmount, shouldCheckTransfer, takerAddress); expect(filledAmount).to.be.bignumber.equal(partialFillAmount); }); it('should return the partially filled amount \ if the fill amount specified is greater then the amount available', async () => { const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const partialFillAmount = new BigNumber(3); await zeroEx.exchange.fillOrderAsync( signedOrder, partialFillAmount, shouldCheckTransfer, takerAddress); const missingBalance = new BigNumber(1); const totalBalance = partialFillAmount.plus(missingBalance); await zeroEx.token.transferAsync(takerTokenAddress, coinbase, takerAddress, missingBalance); await zeroEx.token.setProxyAllowanceAsync(takerTokenAddress, takerAddress, totalBalance); await zeroEx.token.transferAsync(makerTokenAddress, coinbase, makerAddress, missingBalance); await zeroEx.token.setProxyAllowanceAsync(makerTokenAddress, makerAddress, totalBalance); const remainingFillAmount = fillableAmount.minus(partialFillAmount); const filledAmount = await zeroEx.exchange.fillOrderAsync( signedOrder, partialFillAmount, shouldCheckTransfer, takerAddress); expect(filledAmount).to.be.bignumber.equal(remainingFillAmount); }); it('should fill the valid orders with fees', async () => { const makerFee = new BigNumber(1); const takerFee = new BigNumber(2); const signedOrder = await fillScenarios.createFillableSignedOrderWithFeesAsync( makerTokenAddress, takerTokenAddress, makerFee, takerFee, makerAddress, takerAddress, fillableAmount, feeRecipient, ); await zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmount, shouldCheckTransfer, takerAddress); expect(await zeroEx.token.getBalanceAsync(zrxTokenAddress, feeRecipient)) .to.be.bignumber.equal(makerFee.plus(takerFee)); }); }); }); describe('#batchFillOrdersAsync', () => { let signedOrder: SignedOrder; let signedOrderHashHex: string; let anotherSignedOrder: SignedOrder; let anotherOrderHashHex: string; let orderFillBatch: OrderFillRequest[]; beforeEach(async () => { signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); signedOrderHashHex = ZeroEx.getOrderHashHex(signedOrder); anotherSignedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); anotherOrderHashHex = ZeroEx.getOrderHashHex(anotherSignedOrder); orderFillBatch = [ { signedOrder, takerTokenFillAmount: fillTakerAmount, }, { signedOrder: anotherSignedOrder, takerTokenFillAmount: fillTakerAmount, }, ]; }); describe('successful batch fills', () => { it('should no-op for an empty batch', async () => { await zeroEx.exchange.batchFillOrdersAsync([], shouldCheckTransfer, takerAddress); }); it('should successfully fill multiple orders', async () => { await zeroEx.exchange.batchFillOrdersAsync(orderFillBatch, shouldCheckTransfer, takerAddress); const filledAmount = await zeroEx.exchange.getFilledTakerAmountAsync(signedOrderHashHex); const anotherFilledAmount = await zeroEx.exchange.getFilledTakerAmountAsync(anotherOrderHashHex); expect(filledAmount).to.be.bignumber.equal(fillTakerAmount); expect(anotherFilledAmount).to.be.bignumber.equal(fillTakerAmount); }); }); }); describe('#fillOrdersUpTo', () => { let signedOrder: SignedOrder; let signedOrderHashHex: string; let anotherSignedOrder: SignedOrder; let anotherOrderHashHex: string; let signedOrders: SignedOrder[]; const fillUpToAmount = fillableAmount.plus(fillableAmount).minus(1); beforeEach(async () => { signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); signedOrderHashHex = ZeroEx.getOrderHashHex(signedOrder); anotherSignedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); anotherOrderHashHex = ZeroEx.getOrderHashHex(anotherSignedOrder); signedOrders = [signedOrder, anotherSignedOrder]; }); describe('successful batch fills', () => { it('should no-op for an empty batch', async () => { await zeroEx.exchange.fillOrdersUpToAsync([], fillUpToAmount, shouldCheckTransfer, takerAddress); }); it('should successfully fill up to specified amount', async () => { await zeroEx.exchange.fillOrdersUpToAsync( signedOrders, fillUpToAmount, shouldCheckTransfer, takerAddress, ); const filledAmount = await zeroEx.exchange.getFilledTakerAmountAsync(signedOrderHashHex); const anotherFilledAmount = await zeroEx.exchange.getFilledTakerAmountAsync(anotherOrderHashHex); expect(filledAmount).to.be.bignumber.equal(fillableAmount); const remainingFillAmount = fillableAmount.minus(1); expect(anotherFilledAmount).to.be.bignumber.equal(remainingFillAmount); }); it('should return filled amount', async () => { const filledTakerTokenAmount = await zeroEx.exchange.fillOrdersUpToAsync( signedOrders, fillUpToAmount, shouldCheckTransfer, takerAddress, ); expect(filledTakerTokenAmount).to.be.bignumber.equal(fillUpToAmount); }); }); }); }); describe('cancel order(s)', () => { let makerTokenAddress: string; let takerTokenAddress: string; let coinbase: string; let makerAddress: string; let takerAddress: string; const fillableAmount = new BigNumber(5); let signedOrder: SignedOrder; let orderHashHex: string; const cancelAmount = new BigNumber(3); beforeEach(async () => { [coinbase, makerAddress, takerAddress] = userAddresses; const [makerToken, takerToken] = tokenUtils.getNonProtocolTokens(); makerTokenAddress = makerToken.address; takerTokenAddress = takerToken.address; signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); orderHashHex = ZeroEx.getOrderHashHex(signedOrder); }); describe('#cancelOrderAsync', () => { describe('failed cancels', () => { it('should throw when cancel amount is zero', async () => { const zeroCancelAmount = new BigNumber(0); return expect(zeroEx.exchange.cancelOrderAsync(signedOrder, zeroCancelAmount)) .to.be.rejectedWith(ExchangeContractErrs.OrderCancelAmountZero); }); it('should throw when order is expired', async () => { const expirationInPast = new BigNumber(1496826058); // 7th Jun 2017 const expiredSignedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, expirationInPast, ); orderHashHex = ZeroEx.getOrderHashHex(expiredSignedOrder); return expect(zeroEx.exchange.cancelOrderAsync(expiredSignedOrder, cancelAmount)) .to.be.rejectedWith(ExchangeContractErrs.OrderCancelExpired); }); it('should throw when order is already cancelled or filled', async () => { await zeroEx.exchange.cancelOrderAsync(signedOrder, fillableAmount); return expect(zeroEx.exchange.cancelOrderAsync(signedOrder, fillableAmount)) .to.be.rejectedWith(ExchangeContractErrs.OrderAlreadyCancelledOrFilled); }); }); describe('successful cancels', () => { it('should cancel an order', async () => { await zeroEx.exchange.cancelOrderAsync(signedOrder, cancelAmount); const cancelledAmount = await zeroEx.exchange.getCanceledTakerAmountAsync(orderHashHex); expect(cancelledAmount).to.be.bignumber.equal(cancelAmount); }); it('should return cancelled amount', async () => { const cancelledAmount = await zeroEx.exchange.cancelOrderAsync(signedOrder, cancelAmount); expect(cancelledAmount).to.be.bignumber.equal(cancelAmount); }); }); }); describe('#batchCancelOrdersAsync', () => { let anotherSignedOrder: SignedOrder; let anotherOrderHashHex: string; let cancelBatch: OrderCancellationRequest[]; beforeEach(async () => { anotherSignedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); anotherOrderHashHex = ZeroEx.getOrderHashHex(anotherSignedOrder); cancelBatch = [ { order: signedOrder, takerTokenCancelAmount: cancelAmount, }, { order: anotherSignedOrder, takerTokenCancelAmount: cancelAmount, }, ]; }); describe('failed batch cancels', () => { it('should throw when orders have different makers', async () => { const signedOrderWithDifferentMaker = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, takerAddress, takerAddress, fillableAmount, ); return expect(zeroEx.exchange.batchCancelOrdersAsync([ cancelBatch[0], { order: signedOrderWithDifferentMaker, takerTokenCancelAmount: cancelAmount, }, ])).to.be.rejectedWith(ExchangeContractErrs.MultipleMakersInSingleCancelBatchDisallowed); }); }); describe('successful batch cancels', () => { it('should cancel a batch of orders', async () => { await zeroEx.exchange.batchCancelOrdersAsync(cancelBatch); const cancelledAmount = await zeroEx.exchange.getCanceledTakerAmountAsync(orderHashHex); const anotherCancelledAmount = await zeroEx.exchange.getCanceledTakerAmountAsync( anotherOrderHashHex, ); expect(cancelledAmount).to.be.bignumber.equal(cancelAmount); expect(anotherCancelledAmount).to.be.bignumber.equal(cancelAmount); }); }); }); }); describe('tests that require partially filled order', () => { let makerTokenAddress: string; let takerTokenAddress: string; let takerAddress: string; let fillableAmount: BigNumber.BigNumber; let partialFillAmount: BigNumber.BigNumber; let signedOrder: SignedOrder; let orderHash: string; before(() => { takerAddress = userAddresses[1]; const [makerToken, takerToken] = tokens; makerTokenAddress = makerToken.address; takerTokenAddress = takerToken.address; }); beforeEach(async () => { fillableAmount = new BigNumber(5); partialFillAmount = new BigNumber(2); signedOrder = await fillScenarios.createPartiallyFilledSignedOrderAsync( makerTokenAddress, takerTokenAddress, takerAddress, fillableAmount, partialFillAmount, ); orderHash = ZeroEx.getOrderHashHex(signedOrder); }); describe('#getUnavailableTakerAmountAsync', () => { it('should throw if passed an invalid orderHash', async () => { const invalidOrderHashHex = '0x123'; return expect(zeroEx.exchange.getUnavailableTakerAmountAsync(invalidOrderHashHex)).to.be.rejected(); }); it('should return zero if passed a valid but non-existent orderHash', async () => { const unavailableValueT = await zeroEx.exchange.getUnavailableTakerAmountAsync(NON_EXISTENT_ORDER_HASH); expect(unavailableValueT).to.be.bignumber.equal(0); }); it('should return the unavailableValueT for a valid and partially filled orderHash', async () => { const unavailableValueT = await zeroEx.exchange.getUnavailableTakerAmountAsync(orderHash); expect(unavailableValueT).to.be.bignumber.equal(partialFillAmount); }); }); describe('#getFilledTakerAmountAsync', () => { it('should throw if passed an invalid orderHash', async () => { const invalidOrderHashHex = '0x123'; return expect(zeroEx.exchange.getFilledTakerAmountAsync(invalidOrderHashHex)).to.be.rejected(); }); it('should return zero if passed a valid but non-existent orderHash', async () => { const filledValueT = await zeroEx.exchange.getFilledTakerAmountAsync(NON_EXISTENT_ORDER_HASH, ); expect(filledValueT).to.be.bignumber.equal(0); }); it('should return the filledValueT for a valid and partially filled orderHash', async () => { const filledValueT = await zeroEx.exchange.getFilledTakerAmountAsync(orderHash); expect(filledValueT).to.be.bignumber.equal(partialFillAmount); }); }); describe('#getCanceledTakerAmountAsync', () => { it('should throw if passed an invalid orderHash', async () => { const invalidOrderHashHex = '0x123'; return expect(zeroEx.exchange.getCanceledTakerAmountAsync(invalidOrderHashHex)).to.be.rejected(); }); it('should return zero if passed a valid but non-existent orderHash', async () => { const cancelledValueT = await zeroEx.exchange.getCanceledTakerAmountAsync(NON_EXISTENT_ORDER_HASH); expect(cancelledValueT).to.be.bignumber.equal(0); }); it('should return the cancelledValueT for a valid and partially filled orderHash', async () => { const cancelledValueT = await zeroEx.exchange.getCanceledTakerAmountAsync(orderHash); expect(cancelledValueT).to.be.bignumber.equal(0); }); it('should return the cancelledValueT for a valid and cancelled orderHash', async () => { const cancelAmount = fillableAmount.minus(partialFillAmount); await zeroEx.exchange.cancelOrderAsync(signedOrder, cancelAmount); const cancelledValueT = await zeroEx.exchange.getCanceledTakerAmountAsync(orderHash); expect(cancelledValueT).to.be.bignumber.equal(cancelAmount); }); }); }); describe('#subscribeAsync', () => { const indexFilterValues = {}; const shouldCheckTransfer = false; let makerTokenAddress: string; let takerTokenAddress: string; let coinbase: string; let takerAddress: string; let makerAddress: string; let fillableAmount: BigNumber.BigNumber; let signedOrder: SignedOrder; const subscriptionOpts: SubscriptionOpts = { fromBlock: 0, toBlock: 'latest', }; const fillTakerAmountInBaseUnits = new BigNumber(1); const cancelTakerAmountInBaseUnits = new BigNumber(1); before(() => { [coinbase, makerAddress, takerAddress] = userAddresses; const [makerToken, takerToken] = tokens; makerTokenAddress = makerToken.address; takerTokenAddress = takerToken.address; }); beforeEach(async () => { fillableAmount = new BigNumber(5); signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); }); afterEach(async () => { await zeroEx.exchange.stopWatchingAllEventsAsync(); }); // Hack: Mocha does not allow a test to be both async and have a `done` callback // Since we need to await the receipt of the event in the `subscribeAsync` callback, // we do need both. A hack is to make the top-level a sync fn w/ a done callback and then // wrap the rest of the test in an async block // Source: https://github.com/mochajs/mocha/issues/2407 it('Should receive the LogFill event when an order is filled', (done: DoneCallback) => { (async () => { const zeroExEvent = await zeroEx.exchange.subscribeAsync( ExchangeEvents.LogFill, subscriptionOpts, indexFilterValues, exchangeContractAddress, ); zeroExEvent.watch((err: Error, event: ContractEvent) => { expect(err).to.be.null(); expect(event).to.not.be.undefined(); expect(event.event).to.be.equal('LogFill'); done(); }); await zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmountInBaseUnits, shouldCheckTransfer, takerAddress, ); })().catch(done); }); it('Should receive the LogCancel event when an order is cancelled', (done: DoneCallback) => { (async () => { const zeroExEvent = await zeroEx.exchange.subscribeAsync( ExchangeEvents.LogCancel, subscriptionOpts, indexFilterValues, exchangeContractAddress, ); zeroExEvent.watch((err: Error, event: ContractEvent) => { expect(err).to.be.null(); expect(event).to.not.be.undefined(); expect(event.event).to.be.equal('LogCancel'); done(); }); await zeroEx.exchange.cancelOrderAsync(signedOrder, cancelTakerAmountInBaseUnits); })().catch(done); }); it('Outstanding subscriptions are cancelled when zeroEx.setProviderAsync called', (done: DoneCallback) => { (async () => { const eventSubscriptionToBeCancelled = await zeroEx.exchange.subscribeAsync( ExchangeEvents.LogFill, subscriptionOpts, indexFilterValues, exchangeContractAddress, ); eventSubscriptionToBeCancelled.watch((err: Error, event: ContractEvent) => { done(new Error('Expected this subscription to have been cancelled')); }); const newProvider = web3Factory.getRpcProvider(); await zeroEx.setProviderAsync(newProvider); const eventSubscriptionToStay = await zeroEx.exchange.subscribeAsync( ExchangeEvents.LogFill, subscriptionOpts, indexFilterValues, exchangeContractAddress, ); eventSubscriptionToStay.watch((err: Error, event: ContractEvent) => { expect(err).to.be.null(); expect(event).to.not.be.undefined(); expect(event.event).to.be.equal('LogFill'); done(); }); await zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmountInBaseUnits, shouldCheckTransfer, takerAddress, ); })().catch(done); }); it('Should stop watch for events when stopWatchingAsync called on the eventEmitter', (done: DoneCallback) => { (async () => { const eventSubscriptionToBeStopped = await zeroEx.exchange.subscribeAsync( ExchangeEvents.LogFill, subscriptionOpts, indexFilterValues, exchangeContractAddress, ); eventSubscriptionToBeStopped.watch((err: Error, event: ContractEvent) => { done(new Error('Expected this subscription to have been stopped')); }); await eventSubscriptionToBeStopped.stopWatchingAsync(); await zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmountInBaseUnits, shouldCheckTransfer, takerAddress, ); done(); })().catch(done); }); it('Should wrap all event args BigNumber instances in a newer version of BigNumber', (done: DoneCallback) => { (async () => { const zeroExEvent = await zeroEx.exchange.subscribeAsync( ExchangeEvents.LogFill, subscriptionOpts, indexFilterValues, exchangeContractAddress, ); zeroExEvent.watch((err: Error, event: ContractEvent) => { const args = event.args as LogFillContractEventArgs; expect(args.filledMakerTokenAmount.isBigNumber).to.be.true(); expect(args.filledTakerTokenAmount.isBigNumber).to.be.true(); expect(args.paidMakerFee.isBigNumber).to.be.true(); expect(args.paidTakerFee.isBigNumber).to.be.true(); done(); }); await zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerAmountInBaseUnits, shouldCheckTransfer, takerAddress, ); })().catch(done); }); }); describe('#getOrderHashHexUsingContractCallAsync', () => { let makerTokenAddress: string; let takerTokenAddress: string; let makerAddress: string; let takerAddress: string; const fillableAmount = new BigNumber(5); before(async () => { [, makerAddress, takerAddress] = userAddresses; const [makerToken, takerToken] = tokenUtils.getNonProtocolTokens(); makerTokenAddress = makerToken.address; takerTokenAddress = takerToken.address; }); it('get\'s the same hash as the local function', async () => { const signedOrder = await fillScenarios.createFillableSignedOrderAsync( makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount, ); const orderHash = ZeroEx.getOrderHashHex(signedOrder); const orderHashFromContract = await (zeroEx.exchange as any) ._getOrderHashHexUsingContractCallAsync(signedOrder); expect(orderHash).to.equal(orderHashFromContract); }); }); });