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import { expectTransactionFailedAsync, getLatestBlockTimestampAsync } from '@0x/contracts-test-utils';
import { BlockchainLifecycle } from '@0x/dev-utils';
import { assetDataUtils } from '@0x/order-utils';
import { RevertReason, SignedOrder } from '@0x/types';
import { BigNumber } from '@0x/utils';
import * as chai from 'chai';
import 'mocha';
import { ContractWrappers } from '../src';
import { chaiSetup } from './utils/chai_setup';
import { constants } from './utils/constants';
import { DutchAuctionUtils } from './utils/dutch_auction_utils';
import { migrateOnceAsync } from './utils/migrate';
import { tokenUtils } from './utils/token_utils';
import { provider, web3Wrapper } from './utils/web3_wrapper';
chaiSetup.configure();
const expect = chai.expect;
const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
// tslint:disable:custom-no-magic-numbers
describe('DutchAuctionWrapper', () => {
const fillableAmount = new BigNumber(2);
const tenMinutesInSeconds = 10 * 60;
let contractWrappers: ContractWrappers;
let exchangeContractAddress: string;
let userAddresses: string[];
let makerAddress: string;
let takerAddress: string;
let makerTokenAddress: string;
let takerTokenAddress: string;
let buyOrder: SignedOrder;
let sellOrder: SignedOrder;
let makerTokenAssetData: string;
let takerTokenAssetData: string;
let auctionBeginTimeSeconds: BigNumber;
let auctionBeginAmount: BigNumber;
let auctionEndTimeSeconds: BigNumber;
let auctionEndAmount: BigNumber;
before(async () => {
// setup contract wrappers & addresses
const contractAddresses = await migrateOnceAsync();
await blockchainLifecycle.startAsync();
const config = {
networkId: constants.TESTRPC_NETWORK_ID,
contractAddresses,
blockPollingIntervalMs: 10,
};
contractWrappers = new ContractWrappers(provider, config);
exchangeContractAddress = contractWrappers.exchange.address;
userAddresses = await web3Wrapper.getAvailableAddressesAsync();
[, makerAddress, takerAddress] = userAddresses;
[makerTokenAddress, takerTokenAddress] = tokenUtils.getDummyERC20TokenAddresses();
// construct asset data for tokens being swapped
[makerTokenAssetData, takerTokenAssetData] = [
assetDataUtils.encodeERC20AssetData(makerTokenAddress),
assetDataUtils.encodeERC20AssetData(takerTokenAddress),
];
// setup auction details in maker asset data
auctionEndAmount = fillableAmount;
auctionBeginAmount = auctionEndAmount.times(2);
const currentBlockTimestamp: number = await getLatestBlockTimestampAsync();
auctionBeginTimeSeconds = new BigNumber(currentBlockTimestamp - tenMinutesInSeconds);
auctionEndTimeSeconds = new BigNumber(currentBlockTimestamp + tenMinutesInSeconds);
// create auction orders
const coinbase = userAddresses[0];
const dutchAuctionUtils = new DutchAuctionUtils(
web3Wrapper,
coinbase,
exchangeContractAddress,
contractWrappers.erc20Proxy.address,
);
sellOrder = await dutchAuctionUtils.createSignedSellOrderAsync(
auctionBeginTimeSeconds,
auctionBeginAmount,
auctionEndAmount,
auctionEndTimeSeconds,
makerTokenAssetData,
takerTokenAssetData,
makerAddress,
constants.NULL_ADDRESS,
auctionEndAmount,
);
buyOrder = await dutchAuctionUtils.createSignedBuyOrderAsync(sellOrder, takerAddress);
});
after(async () => {
await blockchainLifecycle.revertAsync();
});
beforeEach(async () => {
await blockchainLifecycle.startAsync();
});
afterEach(async () => {
await blockchainLifecycle.revertAsync();
});
describe('#matchOrdersAsync', () => {
it('should match two orders', async () => {
const txHash = await contractWrappers.dutchAuction.matchOrdersAsync(buyOrder, sellOrder, takerAddress);
await web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
});
it('should throw when invalid transaction and shouldValidate is true', async () => {
// request match with bad buy/sell orders
const badSellOrder = buyOrder;
const badBuyOrder = sellOrder;
return expectTransactionFailedAsync(
contractWrappers.dutchAuction.matchOrdersAsync(badBuyOrder, badSellOrder, takerAddress, {
shouldValidate: true,
}),
RevertReason.InvalidAssetData,
);
});
});
describe('#getAuctionDetailsAsync', () => {
it('should get auction details', async () => {
// get auction details
const auctionDetails = await contractWrappers.dutchAuction.getAuctionDetailsAsync(sellOrder);
// run some basic sanity checks on the return value
expect(auctionDetails.beginTimeSeconds, 'auctionDetails.beginTimeSeconds').to.be.bignumber.equal(
auctionBeginTimeSeconds,
);
expect(auctionDetails.beginAmount, 'auctionDetails.beginAmount').to.be.bignumber.equal(auctionBeginAmount);
expect(auctionDetails.endTimeSeconds, 'auctionDetails.endTimeSeconds').to.be.bignumber.equal(
auctionEndTimeSeconds,
);
});
});
});
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