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 { TokenTransferProxyContract } from '../../src/contract_wrappers/generated/token_transfer_proxy';
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 { deployer } from '../utils/deployer';
chaiSetup.configure();
const expect = chai.expect;
const web3 = web3Factory.create();
const web3Wrapper = new Web3Wrapper(web3.currentProvider);
const blockchainLifecycle = new BlockchainLifecycle();
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;
const [repInstance, dgdInstance, zrxInstance] = await Promise.all([
deployer.deployAsync(ContractName.DummyToken),
deployer.deployAsync(ContractName.DummyToken),
deployer.deployAsync(ContractName.DummyToken),
]);
rep = new DummyTokenContract(web3Wrapper, repInstance.abi, repInstance.address);
dgd = new DummyTokenContract(web3Wrapper, dgdInstance.abi, dgdInstance.address);
zrx = new DummyTokenContract(web3Wrapper, zrxInstance.abi, zrxInstance.address);
const tokenTransferProxyInstance = await deployer.deployAsync(ContractName.TokenTransferProxy);
tokenTransferProxy = new TokenTransferProxyContract(
web3Wrapper,
tokenTransferProxyInstance.abi,
tokenTransferProxyInstance.address,
);
const exchangeInstance = await deployer.deployAsync(ContractName.Exchange, [
zrx.address,
tokenTransferProxy.address,
]);
exchange = new ExchangeContract(web3Wrapper, exchangeInstance.abi, exchangeInstance.address);
await tokenTransferProxy.addAuthorizedAddress.sendTransactionAsync(exchange.address, { from: accounts[0] });
zeroEx = new ZeroEx(web3.currentProvider, {
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<LogFillContractEventArgs>;
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<LogFillContractEventArgs>).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<LogFillContractEventArgs>).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 deployer.deployAsync(ContractName.MaliciousToken);
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<LogErrorContractEventArgs>;
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<LogErrorContractEventArgs>;
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<LogFillContractEventArgs>;
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<LogCancelContractEventArgs>;
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<LogErrorContractEventArgs>;
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<LogErrorContractEventArgs>;
const errCode = log.args.errorId;
expect(errCode).to.be.equal(ExchangeContractErrs.ERROR_ORDER_EXPIRED);
});
});
}); // tslint:disable-line:max-file-line-count