import { BlockchainLifecycle } from '@0xproject/dev-utils'; import { assetProxyUtils, orderHashUtils } from '@0xproject/order-utils'; import { RevertReason, 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 * as _ from 'lodash'; import { DummyERC20TokenContract } from '../../generated_contract_wrappers/dummy_erc20_token'; import { DummyERC721TokenContract } from '../../generated_contract_wrappers/dummy_erc721_token'; import { ERC20ProxyContract } from '../../generated_contract_wrappers/erc20_proxy'; import { ERC721ProxyContract } from '../../generated_contract_wrappers/erc721_proxy'; import { ExchangeCancelEventArgs, ExchangeContract } from '../../generated_contract_wrappers/exchange'; import { artifacts } from '../utils/artifacts'; import { expectTransactionFailedAsync } from '../utils/assertions'; import { chaiSetup } from '../utils/chai_setup'; import { constants } from '../utils/constants'; import { ERC20Wrapper } from '../utils/erc20_wrapper'; import { ERC721Wrapper } from '../utils/erc721_wrapper'; import { ExchangeWrapper } from '../utils/exchange_wrapper'; import { OrderFactory } from '../utils/order_factory'; import { ERC20BalancesByOwner } from '../utils/types'; import { provider, txDefaults, web3Wrapper } from '../utils/web3_wrapper'; chaiSetup.configure(); const expect = chai.expect; const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper); // tslint:disable:no-unnecessary-type-assertion 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] = _.slice(accounts, 0, 4)); erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner); erc721Wrapper = new ERC721Wrapper(provider, usedAddresses, owner); const numDummyErc20ToDeploy = 3; [erc20TokenA, erc20TokenB, zrxToken] = await erc20Wrapper.deployDummyTokensAsync( numDummyErc20ToDeploy, constants.DUMMY_TOKEN_DECIMALS, ); 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.encodeERC20AssetData(zrxToken.address), ); exchangeWrapper = new ExchangeWrapper(exchange, provider); await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, owner); await exchangeWrapper.registerAssetProxyAsync(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.encodeERC20AssetData(defaultMakerAssetAddress), takerAssetData: assetProxyUtils.encodeERC20AssetData(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 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 expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress), RevertReason.InvalidOrderSignature, ); }); it('should throw if no value is filled', async () => { signedOrder = orderFactory.newSignedOrder(); await exchangeWrapper.fillOrderAsync(signedOrder, takerAddress); return expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress), RevertReason.OrderUnfillable, ); }); }); describe('cancelOrder', () => { beforeEach(async () => { erc20Balances = await erc20Wrapper.getBalancesAsync(); signedOrder = orderFactory.newSignedOrder(); }); it('should throw if not sent by maker', async () => { return expectTransactionFailedAsync( exchangeWrapper.cancelOrderAsync(signedOrder, takerAddress), RevertReason.InvalidMaker, ); }); it('should throw if makerAssetAmount is 0', async () => { signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(0), }); return expectTransactionFailedAsync( exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress), RevertReason.OrderUnfillable, ); }); it('should throw if takerAssetAmount is 0', async () => { signedOrder = orderFactory.newSignedOrder({ takerAssetAmount: new BigNumber(0), }); return expectTransactionFailedAsync( exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress), RevertReason.OrderUnfillable, ); }); it('should be able to cancel a full order', async () => { await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); return expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: signedOrder.takerAssetAmount.div(2), }), RevertReason.OrderUnfillable, ); }); it('should log 1 event with correct arguments', async () => { const res = await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); expect(res.logs).to.have.length(1); const log = res.logs[0] as LogWithDecodedArgs; const logArgs = log.args; expect(signedOrder.makerAddress).to.be.equal(logArgs.makerAddress); expect(signedOrder.makerAddress).to.be.equal(logArgs.senderAddress); expect(signedOrder.feeRecipientAddress).to.be.equal(logArgs.feeRecipientAddress); expect(signedOrder.makerAssetData).to.be.equal(logArgs.makerAssetData); expect(signedOrder.takerAssetData).to.be.equal(logArgs.takerAssetData); expect(orderHashUtils.getOrderHashHex(signedOrder)).to.be.equal(logArgs.orderHash); }); it('should throw if already cancelled', async () => { await exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress); return expectTransactionFailedAsync( exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress), RevertReason.OrderUnfillable, ); }); it('should throw if order is expired', async () => { signedOrder = orderFactory.newSignedOrder({ expirationTimeSeconds: new BigNumber(Math.floor((Date.now() - 10000) / 1000)), }); return expectTransactionFailedAsync( exchangeWrapper.cancelOrderAsync(signedOrder, makerAddress), RevertReason.OrderUnfillable, ); }); 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 expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount: fillTakerAssetAmount2, }), RevertReason.RoundingError, ); }); }); describe('cancelOrdersUpTo', () => { it('should fail to set orderEpoch less than current orderEpoch', async () => { const orderEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); const lesserOrderEpoch = new BigNumber(0); return expectTransactionFailedAsync( exchangeWrapper.cancelOrdersUpToAsync(lesserOrderEpoch, makerAddress), RevertReason.InvalidNewOrderEpoch, ); }); it('should fail to set orderEpoch equal to existing orderEpoch', async () => { const orderEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); return expectTransactionFailedAsync( exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress), RevertReason.InvalidNewOrderEpoch, ); }); it('should cancel only orders with a orderEpoch less than existing orderEpoch', async () => { // Cancel all transactions with a orderEpoch less than 1 const orderEpoch = new BigNumber(1); await exchangeWrapper.cancelOrdersUpToAsync(orderEpoch, makerAddress); // Create 3 orders with orderEpoch values: 0,1,2,3 // Since we cancelled with orderEpoch=1, orders with orderEpoch<=1 will not be processed erc20Balances = await erc20Wrapper.getBalancesAsync(); const signedOrders = [ 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, { // HACK(albrow): We need to hardcode the gas estimate here because // the Geth gas estimator doesn't work with the way we use // delegatecall and swallow errors. gas: 490000, }); 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 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.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721AssetData(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 expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), RevertReason.TransferFailed, ); }); 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.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721AssetData(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 expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), RevertReason.TransferFailed, ); }); 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.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721AssetData(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 expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), RevertReason.InvalidAmount, ); }); 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.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC721AssetData(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 expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), RevertReason.InvalidAmount, ); }); it('should throw on partial fill', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(1), takerAssetAmount: Web3Wrapper.toBaseUnitAmount(new BigNumber(100), 18), makerAssetData: assetProxyUtils.encodeERC721AssetData(erc721Token.address, makerAssetId), takerAssetData: assetProxyUtils.encodeERC20AssetData(defaultTakerAssetAddress), }); // Call Exchange const takerAssetFillAmount = signedOrder.takerAssetAmount.div(2); return expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), RevertReason.RoundingError, ); }); it('should throw if assetData has a length < 132', async () => { // Construct Exchange parameters const makerAssetId = erc721MakerAssetIds[0]; const takerAssetId = erc721TakerAssetIds[0]; const makerAssetData = assetProxyUtils .encodeERC721AssetData(erc721Token.address, makerAssetId) .slice(0, -2); signedOrder = orderFactory.newSignedOrder({ makerAssetAmount: new BigNumber(1), takerAssetAmount: new BigNumber(1), makerAssetData, takerAssetData: assetProxyUtils.encodeERC721AssetData(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 expectTransactionFailedAsync( exchangeWrapper.fillOrderAsync(signedOrder, takerAddress, { takerAssetFillAmount }), RevertReason.LengthGreaterThan131Required, ); }); }); }); // tslint:disable:max-file-line-count // tslint:enable:no-unnecessary-type-assertion