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import { BlockchainLifecycle, devConstants, web3Factory } from '@0x/dev-utils';
import { FillScenarios } from '@0x/fill-scenarios';
import { runMigrationsAsync } from '@0x/migrations';
import { assetDataUtils } from '@0x/order-utils';
import { SignedOrder } from '@0x/types';
import { BigNumber } from '@0x/utils';
import { Web3Wrapper } from '@0x/web3-wrapper';
import * as chai from 'chai';
import 'mocha';
import { ContractWrappers } from '../src';
import { chaiSetup } from './utils/chai_setup';
import { constants } from './utils/constants';
import { tokenUtils } from './utils/token_utils';
chaiSetup.configure();
const expect = chai.expect;
describe('Revert Validation ExchangeWrapper', () => {
let contractWrappers: ContractWrappers;
let userAddresses: string[];
let fillScenarios: FillScenarios;
let makerTokenAddress: string;
let takerTokenAddress: string;
let makerAddress: string;
let takerAddress: string;
let makerAssetData: string;
let takerAssetData: string;
let txHash: string;
let blockchainLifecycle: BlockchainLifecycle;
let web3Wrapper: Web3Wrapper;
const fillableAmount = new BigNumber(5);
const takerTokenFillAmount = new BigNumber(5);
let signedOrder: SignedOrder;
before(async () => {
// vmErrorsOnRPCResponse is useful for quick feedback and testing during development
// but is not the default behaviour in production. Here we ensure our failure cases
// are handled in an environment which behaves similar to production
const provider = web3Factory.getRpcProvider({
shouldUseInProcessGanache: true,
shouldThrowErrorsOnGanacheRPCResponse: false,
});
web3Wrapper = new Web3Wrapper(provider);
blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
// Re-deploy the artifacts in this provider, rather than in the default provider exposed in
// the beforeAll hook. This is due to the fact that the default provider enabled vmErrorsOnRPCResponse
// and we are explicity testing with vmErrorsOnRPCResponse disabled.
const txDefaults = {
gas: devConstants.GAS_LIMIT,
from: devConstants.TESTRPC_FIRST_ADDRESS,
};
await blockchainLifecycle.startAsync();
const contractAddresses = await runMigrationsAsync(provider, txDefaults);
const config = {
networkId: constants.TESTRPC_NETWORK_ID,
contractAddresses,
blockPollingIntervalMs: 10,
};
contractWrappers = new ContractWrappers(provider, config);
userAddresses = await web3Wrapper.getAvailableAddressesAsync();
fillScenarios = new FillScenarios(
provider,
userAddresses,
contractAddresses.zrxToken,
contractAddresses.exchange,
contractAddresses.erc20Proxy,
contractAddresses.erc721Proxy,
);
[, makerAddress, takerAddress] = userAddresses;
[makerTokenAddress, takerTokenAddress] = tokenUtils.getDummyERC20TokenAddresses();
[makerAssetData, takerAssetData] = [
assetDataUtils.encodeERC20AssetData(makerTokenAddress),
assetDataUtils.encodeERC20AssetData(takerTokenAddress),
];
signedOrder = await fillScenarios.createFillableSignedOrderAsync(
makerAssetData,
takerAssetData,
makerAddress,
takerAddress,
fillableAmount,
);
});
after(async () => {
await blockchainLifecycle.revertAsync();
});
beforeEach(async () => {
await blockchainLifecycle.startAsync();
});
afterEach(async () => {
await blockchainLifecycle.revertAsync();
});
describe('#fillOrderAsync', () => {
it('should throw the revert reason when shouldValidate is true and a fill would revert', async () => {
// Create a scenario where the fill will revert
const makerTokenBalance = await contractWrappers.erc20Token.getBalanceAsync(
makerTokenAddress,
makerAddress,
);
// Transfer all of the tokens from maker to create a failure scenario
txHash = await contractWrappers.erc20Token.transferAsync(
makerTokenAddress,
makerAddress,
takerAddress,
makerTokenBalance,
);
await web3Wrapper.awaitTransactionSuccessAsync(txHash, constants.AWAIT_TRANSACTION_MINED_MS);
return expect(
contractWrappers.exchange.fillOrderAsync(signedOrder, takerTokenFillAmount, takerAddress, {
shouldValidate: true,
}),
).to.be.rejectedWith('TRANSFER_FAILED');
});
});
});
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