import {
assetProxyUtils,
BalanceAndProxyAllowanceLazyStore,
ExchangeTransferSimulator,
orderHashUtils,
OrderStateUtils,
OrderValidationUtils,
} from '@0xproject/order-utils';
import { AssetProxyId, RevertReason, SignatureType, SignedOrder } from '@0xproject/types';
import { BigNumber, errorUtils, logUtils } from '@0xproject/utils';
import { Web3Wrapper } from '@0xproject/web3-wrapper';
import * as chai from 'chai';
import { LogWithDecodedArgs, Provider, TxData } from 'ethereum-types';
import * as _ from 'lodash';
import 'make-promises-safe';
import { ExchangeContract, ExchangeFillEventArgs } from '../../generated_contract_wrappers/exchange';
import { artifacts } from './artifacts';
import { expectTransactionFailedAsync } from './assertions';
import { AssetWrapper } from './asset_wrapper';
import { chaiSetup } from './chai_setup';
import { constants } from './constants';
import { ERC20Wrapper } from './erc20_wrapper';
import { ERC721Wrapper } from './erc721_wrapper';
import { ExchangeWrapper } from './exchange_wrapper';
import { OrderFactoryFromScenario } from './order_factory_from_scenario';
import { orderUtils } from './order_utils';
import { signingUtils } from './signing_utils';
import { SimpleAssetBalanceAndProxyAllowanceFetcher } from './simple_asset_balance_and_proxy_allowance_fetcher';
import { SimpleOrderFilledCancelledFetcher } from './simple_order_filled_cancelled_fetcher';
import {
AllowanceAmountScenario,
AssetDataScenario,
BalanceAmountScenario,
ExpirationTimeSecondsScenario,
FeeRecipientAddressScenario,
FillScenario,
OrderAssetAmountScenario,
TakerAssetFillAmountScenario,
TakerScenario,
TraderStateScenario,
} from './types';
chaiSetup.configure();
const expect = chai.expect;
/**
* Instantiates a new instance of CoreCombinatorialUtils. Since this method has some
* required async setup, a factory method is required.
* @param web3Wrapper Web3Wrapper instance
* @param txDefaults Default Ethereum tx options
* @return CoreCombinatorialUtils instance
*/
export async function coreCombinatorialUtilsFactoryAsync(
web3Wrapper: Web3Wrapper,
txDefaults: Partial<TxData>,
): Promise<CoreCombinatorialUtils> {
const accounts = await web3Wrapper.getAvailableAddressesAsync();
const userAddresses = _.slice(accounts, 0, 5);
const [ownerAddress, makerAddress, takerAddress] = userAddresses;
const makerPrivateKey = constants.TESTRPC_PRIVATE_KEYS[userAddresses.indexOf(makerAddress)];
const provider = web3Wrapper.getProvider();
const erc20Wrapper = new ERC20Wrapper(provider, userAddresses, ownerAddress);
const erc721Wrapper = new ERC721Wrapper(provider, userAddresses, ownerAddress);
const erc20EighteenDecimalTokenCount = 3;
const eighteenDecimals = new BigNumber(18);
const [
erc20EighteenDecimalTokenA,
erc20EighteenDecimalTokenB,
zrxToken,
] = await erc20Wrapper.deployDummyTokensAsync(erc20EighteenDecimalTokenCount, eighteenDecimals);
const zrxAssetData = assetProxyUtils.encodeERC20AssetData(zrxToken.address);
const erc20FiveDecimalTokenCount = 2;
const fiveDecimals = new BigNumber(5);
const [erc20FiveDecimalTokenA, erc20FiveDecimalTokenB] = await erc20Wrapper.deployDummyTokensAsync(
erc20FiveDecimalTokenCount,
fiveDecimals,
);
const erc20Proxy = await erc20Wrapper.deployProxyAsync();
await erc20Wrapper.setBalancesAndAllowancesAsync();
const [erc721Token] = await erc721Wrapper.deployDummyTokensAsync();
const erc721Proxy = await erc721Wrapper.deployProxyAsync();
await erc721Wrapper.setBalancesAndAllowancesAsync();
const erc721Balances = await erc721Wrapper.getBalancesAsync();
const assetWrapper = new AssetWrapper([erc20Wrapper, erc721Wrapper]);
const exchangeContract = await ExchangeContract.deployFrom0xArtifactAsync(
artifacts.Exchange,
provider,
txDefaults,
zrxAssetData,
);
const exchangeWrapper = new ExchangeWrapper(exchangeContract, provider);
await exchangeWrapper.registerAssetProxyAsync(erc20Proxy.address, ownerAddress);
await exchangeWrapper.registerAssetProxyAsync(erc721Proxy.address, ownerAddress);
await web3Wrapper.awaitTransactionSuccessAsync(
await erc20Proxy.addAuthorizedAddress.sendTransactionAsync(exchangeContract.address, {
from: ownerAddress,
}),
constants.AWAIT_TRANSACTION_MINED_MS,
);
await web3Wrapper.awaitTransactionSuccessAsync(
await erc721Proxy.addAuthorizedAddress.sendTransactionAsync(exchangeContract.address, {
from: ownerAddress,
}),
constants.AWAIT_TRANSACTION_MINED_MS,
);
const orderFactory = new OrderFactoryFromScenario(
userAddresses,
zrxToken.address,
[erc20EighteenDecimalTokenA.address, erc20EighteenDecimalTokenB.address],
[erc20FiveDecimalTokenA.address, erc20FiveDecimalTokenB.address],
erc721Token,
erc721Balances,
exchangeContract.address,
);
const coreCombinatorialUtils = new CoreCombinatorialUtils(
orderFactory,
ownerAddress,
makerAddress,
makerPrivateKey,
takerAddress,
zrxAssetData,
exchangeWrapper,
assetWrapper,
);
return coreCombinatorialUtils;
}
export class CoreCombinatorialUtils {
public orderFactory: OrderFactoryFromScenario;
public ownerAddress: string;
public makerAddress: string;
public makerPrivateKey: Buffer;
public takerAddress: string;
public zrxAssetData: string;
public exchangeWrapper: ExchangeWrapper;
public assetWrapper: AssetWrapper;
public static generateFillOrderCombinations(): FillScenario[] {
const takerScenarios = [
TakerScenario.Unspecified,
// TakerScenario.CorrectlySpecified,
// TakerScenario.IncorrectlySpecified,
];
const feeRecipientScenarios = [
FeeRecipientAddressScenario.EthUserAddress,
// FeeRecipientAddressScenario.BurnAddress,
];
const makerAssetAmountScenario = [
OrderAssetAmountScenario.Large,
// OrderAssetAmountScenario.Zero,
// OrderAssetAmountScenario.Small,
];
const takerAssetAmountScenario = [
OrderAssetAmountScenario.Large,
// OrderAssetAmountScenario.Zero,
// OrderAssetAmountScenario.Small,
];
const makerFeeScenario = [
OrderAssetAmountScenario.Large,
// OrderAssetAmountScenario.Small,
// OrderAssetAmountScenario.Zero,
];
const takerFeeScenario = [
OrderAssetAmountScenario.Large,
// OrderAssetAmountScenario.Small,
// OrderAssetAmountScenario.Zero,
];
const expirationTimeSecondsScenario = [
ExpirationTimeSecondsScenario.InFuture,
ExpirationTimeSecondsScenario.InPast,
];
const makerAssetDataScenario = [
AssetDataScenario.ERC20FiveDecimals,
AssetDataScenario.ERC20NonZRXEighteenDecimals,
AssetDataScenario.ERC721,
AssetDataScenario.ZRXFeeToken,
];
const takerAssetDataScenario = [
AssetDataScenario.ERC20FiveDecimals,
AssetDataScenario.ERC20NonZRXEighteenDecimals,
AssetDataScenario.ERC721,
AssetDataScenario.ZRXFeeToken,
];
const takerAssetFillAmountScenario = [
TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount,
// TakerAssetFillAmountScenario.GreaterThanRemainingFillableTakerAssetAmount,
// TakerAssetFillAmountScenario.LessThanRemainingFillableTakerAssetAmount,
];
const makerAssetBalanceScenario = [
BalanceAmountScenario.Higher,
// BalanceAmountScenario.Exact,
// BalanceAmountScenario.TooLow,
];
const makerAssetAllowanceScenario = [
AllowanceAmountScenario.Higher,
// AllowanceAmountScenario.Exact,
// AllowanceAmountScenario.TooLow,
// AllowanceAmountScenario.Unlimited,
];
const makerZRXBalanceScenario = [
BalanceAmountScenario.Higher,
// BalanceAmountScenario.Exact,
// BalanceAmountScenario.TooLow,
];
const makerZRXAllowanceScenario = [
AllowanceAmountScenario.Higher,
// AllowanceAmountScenario.Exact,
// AllowanceAmountScenario.TooLow,
// AllowanceAmountScenario.Unlimited,
];
const takerAssetBalanceScenario = [
BalanceAmountScenario.Higher,
// BalanceAmountScenario.Exact,
// BalanceAmountScenario.TooLow,
];
const takerAssetAllowanceScenario = [
AllowanceAmountScenario.Higher,
// AllowanceAmountScenario.Exact,
// AllowanceAmountScenario.TooLow,
// AllowanceAmountScenario.Unlimited,
];
const takerZRXBalanceScenario = [
BalanceAmountScenario.Higher,
// BalanceAmountScenario.Exact,
// BalanceAmountScenario.TooLow,
];
const takerZRXAllowanceScenario = [
AllowanceAmountScenario.Higher,
// AllowanceAmountScenario.Exact,
// AllowanceAmountScenario.TooLow,
// AllowanceAmountScenario.Unlimited,
];
const fillScenarioArrays = CoreCombinatorialUtils._getAllCombinations([
takerScenarios,
feeRecipientScenarios,
makerAssetAmountScenario,
takerAssetAmountScenario,
makerFeeScenario,
takerFeeScenario,
expirationTimeSecondsScenario,
makerAssetDataScenario,
takerAssetDataScenario,
takerAssetFillAmountScenario,
makerAssetBalanceScenario,
makerAssetAllowanceScenario,
makerZRXBalanceScenario,
makerZRXAllowanceScenario,
takerAssetBalanceScenario,
takerAssetAllowanceScenario,
takerZRXBalanceScenario,
takerZRXAllowanceScenario,
]);
const fillScenarios = _.map(fillScenarioArrays, fillScenarioArray => {
// tslint:disable:custom-no-magic-numbers
const fillScenario: FillScenario = {
orderScenario: {
takerScenario: fillScenarioArray[0] as TakerScenario,
feeRecipientScenario: fillScenarioArray[1] as FeeRecipientAddressScenario,
makerAssetAmountScenario: fillScenarioArray[2] as OrderAssetAmountScenario,
takerAssetAmountScenario: fillScenarioArray[3] as OrderAssetAmountScenario,
makerFeeScenario: fillScenarioArray[4] as OrderAssetAmountScenario,
takerFeeScenario: fillScenarioArray[5] as OrderAssetAmountScenario,
expirationTimeSecondsScenario: fillScenarioArray[6] as ExpirationTimeSecondsScenario,
makerAssetDataScenario: fillScenarioArray[7] as AssetDataScenario,
takerAssetDataScenario: fillScenarioArray[8] as AssetDataScenario,
},
takerAssetFillAmountScenario: fillScenarioArray[9] as TakerAssetFillAmountScenario,
makerStateScenario: {
traderAssetBalance: fillScenarioArray[10] as BalanceAmountScenario,
traderAssetAllowance: fillScenarioArray[11] as AllowanceAmountScenario,
zrxFeeBalance: fillScenarioArray[12] as BalanceAmountScenario,
zrxFeeAllowance: fillScenarioArray[13] as AllowanceAmountScenario,
},
takerStateScenario: {
traderAssetBalance: fillScenarioArray[14] as BalanceAmountScenario,
traderAssetAllowance: fillScenarioArray[15] as AllowanceAmountScenario,
zrxFeeBalance: fillScenarioArray[16] as BalanceAmountScenario,
zrxFeeAllowance: fillScenarioArray[17] as AllowanceAmountScenario,
},
};
// tslint:enable:custom-no-magic-numbers
return fillScenario;
});
return fillScenarios;
}
/**
* Recursive implementation of generating all combinations of the supplied
* string-containing arrays.
*/
private static _getAllCombinations(arrays: string[][]): string[][] {
// Base case
if (arrays.length === 1) {
const remainingValues = _.map(arrays[0], val => {
return [val];
});
return remainingValues;
} else {
const result = [];
const restOfArrays = arrays.slice(1);
const allCombinationsOfRemaining = CoreCombinatorialUtils._getAllCombinations(restOfArrays); // recur with the rest of array
// tslint:disable:prefer-for-of
for (let i = 0; i < allCombinationsOfRemaining.length; i++) {
for (let j = 0; j < arrays[0].length; j++) {
result.push([arrays[0][j], ...allCombinationsOfRemaining[i]]);
}
}
// tslint:enable:prefer-for-of
return result;
}
}
constructor(
orderFactory: OrderFactoryFromScenario,
ownerAddress: string,
makerAddress: string,
makerPrivateKey: Buffer,
takerAddress: string,
zrxAssetData: string,
exchangeWrapper: ExchangeWrapper,
assetWrapper: AssetWrapper,
) {
this.orderFactory = orderFactory;
this.ownerAddress = ownerAddress;
this.makerAddress = makerAddress;
this.makerPrivateKey = makerPrivateKey;
this.takerAddress = takerAddress;
this.zrxAssetData = zrxAssetData;
this.exchangeWrapper = exchangeWrapper;
this.assetWrapper = assetWrapper;
}
public async testFillOrderScenarioAsync(
provider: Provider,
fillScenario: FillScenario,
isVerbose: boolean = false,
): Promise<void> {
// 1. Generate order
const order = this.orderFactory.generateOrder(fillScenario.orderScenario);
// 2. Sign order
const orderHashBuff = orderHashUtils.getOrderHashBuffer(order);
const signature = signingUtils.signMessage(orderHashBuff, this.makerPrivateKey, SignatureType.EthSign);
const signedOrder = {
...order,
signature: `0x${signature.toString('hex')}`,
};
const balanceAndProxyAllowanceFetcher = new SimpleAssetBalanceAndProxyAllowanceFetcher(this.assetWrapper);
const orderFilledCancelledFetcher = new SimpleOrderFilledCancelledFetcher(
this.exchangeWrapper,
this.zrxAssetData,
);
// 3. Figure out fill amount
const takerAssetFillAmount = await this._getTakerAssetFillAmountAsync(
signedOrder,
fillScenario.takerAssetFillAmountScenario,
balanceAndProxyAllowanceFetcher,
orderFilledCancelledFetcher,
);
// 4. Permutate the maker and taker balance/allowance scenarios
await this._modifyTraderStateAsync(
fillScenario.makerStateScenario,
fillScenario.takerStateScenario,
signedOrder,
takerAssetFillAmount,
);
// 5. If I fill it by X, what are the resulting balances/allowances/filled amounts expected?
const orderValidationUtils = new OrderValidationUtils(orderFilledCancelledFetcher);
const lazyStore = new BalanceAndProxyAllowanceLazyStore(balanceAndProxyAllowanceFetcher);
const exchangeTransferSimulator = new ExchangeTransferSimulator(lazyStore);
let fillRevertReasonIfExists;
try {
await orderValidationUtils.validateFillOrderThrowIfInvalidAsync(
exchangeTransferSimulator,
provider,
signedOrder,
takerAssetFillAmount,
this.takerAddress,
this.zrxAssetData,
);
if (isVerbose) {
logUtils.log(`Expecting fillOrder to succeed.`);
}
} catch (err) {
fillRevertReasonIfExists = err.message;
if (isVerbose) {
logUtils.log(`Expecting fillOrder to fail with:`);
logUtils.log(err);
}
}
// 6. Fill the order
await this._fillOrderAndAssertOutcomeAsync(
signedOrder,
takerAssetFillAmount,
lazyStore,
fillRevertReasonIfExists,
);
}
private async _fillOrderAndAssertOutcomeAsync(
signedOrder: SignedOrder,
takerAssetFillAmount: BigNumber,
lazyStore: BalanceAndProxyAllowanceLazyStore,
fillRevertReasonIfExists: RevertReason | undefined,
): Promise<void> {
if (!_.isUndefined(fillRevertReasonIfExists)) {
return expectTransactionFailedAsync(
this.exchangeWrapper.fillOrderAsync(signedOrder, this.takerAddress, { takerAssetFillAmount }),
fillRevertReasonIfExists,
);
}
const makerAddress = signedOrder.makerAddress;
const makerAssetData = signedOrder.makerAssetData;
const takerAssetData = signedOrder.takerAssetData;
const feeRecipient = signedOrder.feeRecipientAddress;
const expMakerAssetBalanceOfMaker = await lazyStore.getBalanceAsync(makerAssetData, makerAddress);
const expMakerAssetAllowanceOfMaker = await lazyStore.getProxyAllowanceAsync(makerAssetData, makerAddress);
const expTakerAssetBalanceOfMaker = await lazyStore.getBalanceAsync(takerAssetData, makerAddress);
const expZRXAssetBalanceOfMaker = await lazyStore.getBalanceAsync(this.zrxAssetData, makerAddress);
const expZRXAssetAllowanceOfMaker = await lazyStore.getProxyAllowanceAsync(this.zrxAssetData, makerAddress);
const expTakerAssetBalanceOfTaker = await lazyStore.getBalanceAsync(takerAssetData, this.takerAddress);
const expTakerAssetAllowanceOfTaker = await lazyStore.getProxyAllowanceAsync(takerAssetData, this.takerAddress);
const expMakerAssetBalanceOfTaker = await lazyStore.getBalanceAsync(makerAssetData, this.takerAddress);
const expZRXAssetBalanceOfTaker = await lazyStore.getBalanceAsync(this.zrxAssetData, this.takerAddress);
const expZRXAssetAllowanceOfTaker = await lazyStore.getProxyAllowanceAsync(
this.zrxAssetData,
this.takerAddress,
);
const expZRXAssetBalanceOfFeeRecipient = await lazyStore.getBalanceAsync(this.zrxAssetData, feeRecipient);
const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
const alreadyFilledTakerAmount = await this.exchangeWrapper.getTakerAssetFilledAmountAsync(orderHash);
const remainingTakerAmountToFill = signedOrder.takerAssetAmount.minus(alreadyFilledTakerAmount);
const expFilledTakerAmount = takerAssetFillAmount.gt(remainingTakerAmountToFill)
? remainingTakerAmountToFill
: alreadyFilledTakerAmount.add(takerAssetFillAmount);
const expFilledMakerAmount = orderUtils.getPartialAmount(
expFilledTakerAmount,
signedOrder.takerAssetAmount,
signedOrder.makerAssetAmount,
);
// - Let's fill the order!
const txReceipt = await this.exchangeWrapper.fillOrderAsync(signedOrder, this.takerAddress, {
takerAssetFillAmount,
});
const actFilledTakerAmount = await this.exchangeWrapper.getTakerAssetFilledAmountAsync(orderHash);
expect(actFilledTakerAmount).to.be.bignumber.equal(expFilledTakerAmount, 'filledTakerAmount');
expect(txReceipt.logs.length).to.be.equal(1, 'logs length');
// tslint:disable-next-line:no-unnecessary-type-assertion
const log = txReceipt.logs[0] as LogWithDecodedArgs<ExchangeFillEventArgs>;
expect(log.args.makerAddress).to.be.equal(makerAddress, 'log.args.makerAddress');
expect(log.args.takerAddress).to.be.equal(this.takerAddress, 'log.args.this.takerAddress');
expect(log.args.feeRecipientAddress).to.be.equal(feeRecipient, 'log.args.feeRecipientAddress');
expect(log.args.makerAssetFilledAmount).to.be.bignumber.equal(
expFilledMakerAmount,
'log.args.makerAssetFilledAmount',
);
expect(log.args.takerAssetFilledAmount).to.be.bignumber.equal(
expFilledTakerAmount,
'log.args.takerAssetFilledAmount',
);
const expMakerFeePaid = orderUtils.getPartialAmount(
expFilledTakerAmount,
signedOrder.takerAssetAmount,
signedOrder.makerFee,
);
expect(log.args.makerFeePaid).to.be.bignumber.equal(expMakerFeePaid, 'log.args.makerFeePaid');
const expTakerFeePaid = orderUtils.getPartialAmount(
expFilledTakerAmount,
signedOrder.takerAssetAmount,
signedOrder.takerFee,
);
expect(log.args.takerFeePaid).to.be.bignumber.equal(expTakerFeePaid, 'logs.args.takerFeePaid');
expect(log.args.orderHash).to.be.equal(orderHash, 'log.args.orderHash');
expect(log.args.makerAssetData).to.be.equal(makerAssetData, 'log.args.makerAssetData');
expect(log.args.takerAssetData).to.be.equal(takerAssetData, 'log.args.takerAssetData');
const actMakerAssetBalanceOfMaker = await this.assetWrapper.getBalanceAsync(makerAddress, makerAssetData);
expect(actMakerAssetBalanceOfMaker).to.be.bignumber.equal(
expMakerAssetBalanceOfMaker,
'makerAssetBalanceOfMaker',
);
const actMakerAssetAllowanceOfMaker = await this.assetWrapper.getProxyAllowanceAsync(
makerAddress,
makerAssetData,
);
expect(actMakerAssetAllowanceOfMaker).to.be.bignumber.equal(
expMakerAssetAllowanceOfMaker,
'makerAssetAllowanceOfMaker',
);
const actTakerAssetBalanceOfMaker = await this.assetWrapper.getBalanceAsync(makerAddress, takerAssetData);
expect(actTakerAssetBalanceOfMaker).to.be.bignumber.equal(
expTakerAssetBalanceOfMaker,
'takerAssetBalanceOfMaker',
);
const actZRXAssetBalanceOfMaker = await this.assetWrapper.getBalanceAsync(makerAddress, this.zrxAssetData);
expect(actZRXAssetBalanceOfMaker).to.be.bignumber.equal(expZRXAssetBalanceOfMaker, 'ZRXAssetBalanceOfMaker');
const actZRXAssetAllowanceOfMaker = await this.assetWrapper.getProxyAllowanceAsync(
makerAddress,
this.zrxAssetData,
);
expect(actZRXAssetAllowanceOfMaker).to.be.bignumber.equal(
expZRXAssetAllowanceOfMaker,
'ZRXAssetAllowanceOfMaker',
);
const actTakerAssetBalanceOfTaker = await this.assetWrapper.getBalanceAsync(this.takerAddress, takerAssetData);
expect(actTakerAssetBalanceOfTaker).to.be.bignumber.equal(
expTakerAssetBalanceOfTaker,
'TakerAssetBalanceOfTaker',
);
const actTakerAssetAllowanceOfTaker = await this.assetWrapper.getProxyAllowanceAsync(
this.takerAddress,
takerAssetData,
);
expect(actTakerAssetAllowanceOfTaker).to.be.bignumber.equal(
expTakerAssetAllowanceOfTaker,
'TakerAssetAllowanceOfTaker',
);
const actMakerAssetBalanceOfTaker = await this.assetWrapper.getBalanceAsync(this.takerAddress, makerAssetData);
expect(actMakerAssetBalanceOfTaker).to.be.bignumber.equal(
expMakerAssetBalanceOfTaker,
'MakerAssetBalanceOfTaker',
);
const actZRXAssetBalanceOfTaker = await this.assetWrapper.getBalanceAsync(this.takerAddress, this.zrxAssetData);
expect(actZRXAssetBalanceOfTaker).to.be.bignumber.equal(expZRXAssetBalanceOfTaker, 'ZRXAssetBalanceOfTaker');
const actZRXAssetAllowanceOfTaker = await this.assetWrapper.getProxyAllowanceAsync(
this.takerAddress,
this.zrxAssetData,
);
expect(actZRXAssetAllowanceOfTaker).to.be.bignumber.equal(
expZRXAssetAllowanceOfTaker,
'ZRXAssetAllowanceOfTaker',
);
const actZRXAssetBalanceOfFeeRecipient = await this.assetWrapper.getBalanceAsync(
feeRecipient,
this.zrxAssetData,
);
expect(actZRXAssetBalanceOfFeeRecipient).to.be.bignumber.equal(
expZRXAssetBalanceOfFeeRecipient,
'ZRXAssetBalanceOfFeeRecipient',
);
}
private async _getTakerAssetFillAmountAsync(
signedOrder: SignedOrder,
takerAssetFillAmountScenario: TakerAssetFillAmountScenario,
balanceAndProxyAllowanceFetcher: SimpleAssetBalanceAndProxyAllowanceFetcher,
orderFilledCancelledFetcher: SimpleOrderFilledCancelledFetcher,
): Promise<BigNumber> {
const orderStateUtils = new OrderStateUtils(balanceAndProxyAllowanceFetcher, orderFilledCancelledFetcher);
const fillableTakerAssetAmount = await orderStateUtils.getMaxFillableTakerAssetAmountAsync(
signedOrder,
this.takerAddress,
);
let takerAssetFillAmount;
switch (takerAssetFillAmountScenario) {
case TakerAssetFillAmountScenario.Zero:
takerAssetFillAmount = new BigNumber(0);
break;
case TakerAssetFillAmountScenario.ExactlyRemainingFillableTakerAssetAmount:
takerAssetFillAmount = fillableTakerAssetAmount;
break;
case TakerAssetFillAmountScenario.GreaterThanRemainingFillableTakerAssetAmount:
takerAssetFillAmount = fillableTakerAssetAmount.add(1);
break;
case TakerAssetFillAmountScenario.LessThanRemainingFillableTakerAssetAmount:
const takerAssetProxyId = assetProxyUtils.decodeAssetDataId(signedOrder.takerAssetData);
const makerAssetProxyId = assetProxyUtils.decodeAssetDataId(signedOrder.makerAssetData);
const isEitherAssetERC721 =
takerAssetProxyId === AssetProxyId.ERC721 || makerAssetProxyId === AssetProxyId.ERC721;
if (isEitherAssetERC721) {
throw new Error(
'Cannot test `TakerAssetFillAmountScenario.LessThanRemainingFillableTakerAssetAmount` together with ERC721 assets since orders involving ERC721 must always be filled exactly.',
);
}
takerAssetFillAmount = fillableTakerAssetAmount.div(2).floor();
break;
default:
throw errorUtils.spawnSwitchErr('TakerAssetFillAmountScenario', takerAssetFillAmountScenario);
}
return takerAssetFillAmount;
}
private async _modifyTraderStateAsync(
makerStateScenario: TraderStateScenario,
takerStateScenario: TraderStateScenario,
signedOrder: SignedOrder,
takerAssetFillAmount: BigNumber,
): Promise<void> {
const makerAssetFillAmount = orderUtils.getPartialAmount(
takerAssetFillAmount,
signedOrder.takerAssetAmount,
signedOrder.makerAssetAmount,
);
switch (makerStateScenario.traderAssetBalance) {
case BalanceAmountScenario.Higher:
break; // Noop since this is already the default
case BalanceAmountScenario.TooLow:
if (makerAssetFillAmount.eq(0)) {
throw new Error(`Cannot set makerAssetBalanceOfMaker TooLow if makerAssetFillAmount is 0`);
}
const tooLowBalance = makerAssetFillAmount.minus(1);
await this.assetWrapper.setBalanceAsync(
signedOrder.makerAddress,
signedOrder.makerAssetData,
tooLowBalance,
);
break;
case BalanceAmountScenario.Exact:
const exactBalance = makerAssetFillAmount;
await this.assetWrapper.setBalanceAsync(
signedOrder.makerAddress,
signedOrder.makerAssetData,
exactBalance,
);
break;
default:
throw errorUtils.spawnSwitchErr(
'makerStateScenario.traderAssetBalance',
makerStateScenario.traderAssetBalance,
);
}
const makerFee = orderUtils.getPartialAmount(
takerAssetFillAmount,
signedOrder.takerAssetAmount,
signedOrder.makerFee,
);
switch (makerStateScenario.zrxFeeBalance) {
case BalanceAmountScenario.Higher:
break; // Noop since this is already the default
case BalanceAmountScenario.TooLow:
if (makerFee.eq(0)) {
throw new Error(`Cannot set zrxAsserBalanceOfMaker TooLow if makerFee is 0`);
}
const tooLowBalance = makerFee.minus(1);
await this.assetWrapper.setBalanceAsync(signedOrder.makerAddress, this.zrxAssetData, tooLowBalance);
break;
case BalanceAmountScenario.Exact:
const exactBalance = makerFee;
await this.assetWrapper.setBalanceAsync(signedOrder.makerAddress, this.zrxAssetData, exactBalance);
break;
default:
throw errorUtils.spawnSwitchErr('makerStateScenario.zrxFeeBalance', makerStateScenario.zrxFeeBalance);
}
switch (makerStateScenario.traderAssetAllowance) {
case AllowanceAmountScenario.Higher:
break; // Noop since this is already the default
case AllowanceAmountScenario.TooLow:
const tooLowAllowance = makerAssetFillAmount.minus(1);
await this.assetWrapper.setProxyAllowanceAsync(
signedOrder.makerAddress,
signedOrder.makerAssetData,
tooLowAllowance,
);
break;
case AllowanceAmountScenario.Exact:
const exactAllowance = makerAssetFillAmount;
await this.assetWrapper.setProxyAllowanceAsync(
signedOrder.makerAddress,
signedOrder.makerAssetData,
exactAllowance,
);
break;
case AllowanceAmountScenario.Unlimited:
await this.assetWrapper.setProxyAllowanceAsync(
signedOrder.makerAddress,
signedOrder.makerAssetData,
constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS,
);
break;
default:
throw errorUtils.spawnSwitchErr(
'makerStateScenario.traderAssetAllowance',
makerStateScenario.traderAssetAllowance,
);
}
switch (makerStateScenario.zrxFeeAllowance) {
case AllowanceAmountScenario.Higher:
break; // Noop since this is already the default
case AllowanceAmountScenario.TooLow:
const tooLowAllowance = makerFee.minus(1);
await this.assetWrapper.setProxyAllowanceAsync(
signedOrder.makerAddress,
this.zrxAssetData,
tooLowAllowance,
);
break;
case AllowanceAmountScenario.Exact:
const exactAllowance = makerFee;
await this.assetWrapper.setProxyAllowanceAsync(
signedOrder.makerAddress,
this.zrxAssetData,
exactAllowance,
);
break;
case AllowanceAmountScenario.Unlimited:
await this.assetWrapper.setProxyAllowanceAsync(
signedOrder.makerAddress,
this.zrxAssetData,
constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS,
);
break;
default:
throw errorUtils.spawnSwitchErr(
'makerStateScenario.zrxFeeAllowance',
makerStateScenario.zrxFeeAllowance,
);
}
switch (takerStateScenario.traderAssetBalance) {
case BalanceAmountScenario.Higher:
break; // Noop since this is already the default
case BalanceAmountScenario.TooLow:
if (takerAssetFillAmount.eq(0)) {
throw new Error(`Cannot set takerAssetBalanceOfTaker TooLow if takerAssetFillAmount is 0`);
}
const tooLowBalance = takerAssetFillAmount.minus(1);
await this.assetWrapper.setBalanceAsync(this.takerAddress, signedOrder.takerAssetData, tooLowBalance);
break;
case BalanceAmountScenario.Exact:
const exactBalance = takerAssetFillAmount;
await this.assetWrapper.setBalanceAsync(this.takerAddress, signedOrder.takerAssetData, exactBalance);
break;
default:
throw errorUtils.spawnSwitchErr(
'takerStateScenario.traderAssetBalance',
takerStateScenario.traderAssetBalance,
);
}
const takerFee = orderUtils.getPartialAmount(
takerAssetFillAmount,
signedOrder.takerAssetAmount,
signedOrder.takerFee,
);
switch (takerStateScenario.zrxFeeBalance) {
case BalanceAmountScenario.Higher:
break; // Noop since this is already the default
case BalanceAmountScenario.TooLow:
if (takerFee.eq(0)) {
throw new Error(`Cannot set zrxAssetBalanceOfTaker TooLow if takerFee is 0`);
}
const tooLowBalance = takerFee.minus(1);
await this.assetWrapper.setBalanceAsync(this.takerAddress, this.zrxAssetData, tooLowBalance);
break;
case BalanceAmountScenario.Exact:
const exactBalance = takerFee;
await this.assetWrapper.setBalanceAsync(this.takerAddress, this.zrxAssetData, exactBalance);
break;
default:
throw errorUtils.spawnSwitchErr('takerStateScenario.zrxFeeBalance', takerStateScenario.zrxFeeBalance);
}
switch (takerStateScenario.traderAssetAllowance) {
case AllowanceAmountScenario.Higher:
break; // Noop since this is already the default
case AllowanceAmountScenario.TooLow:
const tooLowAllowance = takerAssetFillAmount.minus(1);
await this.assetWrapper.setProxyAllowanceAsync(
this.takerAddress,
signedOrder.takerAssetData,
tooLowAllowance,
);
break;
case AllowanceAmountScenario.Exact:
const exactAllowance = takerAssetFillAmount;
await this.assetWrapper.setProxyAllowanceAsync(
this.takerAddress,
signedOrder.takerAssetData,
exactAllowance,
);
break;
case AllowanceAmountScenario.Unlimited:
await this.assetWrapper.setProxyAllowanceAsync(
this.takerAddress,
signedOrder.takerAssetData,
constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS,
);
break;
default:
throw errorUtils.spawnSwitchErr(
'takerStateScenario.traderAssetAllowance',
takerStateScenario.traderAssetAllowance,
);
}
switch (takerStateScenario.zrxFeeAllowance) {
case AllowanceAmountScenario.Higher:
break; // Noop since this is already the default
case AllowanceAmountScenario.TooLow:
const tooLowAllowance = takerFee.minus(1);
await this.assetWrapper.setProxyAllowanceAsync(this.takerAddress, this.zrxAssetData, tooLowAllowance);
break;
case AllowanceAmountScenario.Exact:
const exactAllowance = takerFee;
await this.assetWrapper.setProxyAllowanceAsync(this.takerAddress, this.zrxAssetData, exactAllowance);
break;
case AllowanceAmountScenario.Unlimited:
await this.assetWrapper.setProxyAllowanceAsync(
this.takerAddress,
this.zrxAssetData,
constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS,
);
break;
default:
throw errorUtils.spawnSwitchErr(
'takerStateScenario.zrxFeeAllowance',
takerStateScenario.zrxFeeAllowance,
);
}
}
} // tslint:disable:max-file-line-count