477 lines
25 KiB
TypeScript
477 lines
25 KiB
TypeScript
import 'mocha';
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import * as chai from 'chai';
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import {chaiSetup} from './utils/chai_setup';
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import * as Web3 from 'web3';
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import BigNumber from 'bignumber.js';
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import promisify = require('es6-promisify');
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import {web3Factory} from './utils/web3_factory';
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import {
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ZeroEx,
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ZeroExError,
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Token,
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SubscriptionOpts,
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TokenEvents,
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ContractEvent,
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TransferContractEventArgs,
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ApprovalContractEventArgs,
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TokenContractEventArgs,
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LogWithDecodedArgs,
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LogEvent,
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} from '../src';
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import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
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import {TokenUtils} from './utils/token_utils';
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import {DoneCallback, BlockParamLiteral} from '../src/types';
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chaiSetup.configure();
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const expect = chai.expect;
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const blockchainLifecycle = new BlockchainLifecycle();
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describe('TokenWrapper', () => {
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let web3: Web3;
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let zeroEx: ZeroEx;
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let userAddresses: string[];
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let tokens: Token[];
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let tokenUtils: TokenUtils;
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let coinbase: string;
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let addressWithoutFunds: string;
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before(async () => {
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web3 = web3Factory.create();
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zeroEx = new ZeroEx(web3.currentProvider);
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userAddresses = await zeroEx.getAvailableAddressesAsync();
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tokens = await zeroEx.tokenRegistry.getTokensAsync();
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tokenUtils = new TokenUtils(tokens);
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coinbase = userAddresses[0];
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addressWithoutFunds = userAddresses[1];
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});
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beforeEach(async () => {
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await blockchainLifecycle.startAsync();
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});
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afterEach(async () => {
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await blockchainLifecycle.revertAsync();
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});
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describe('#transferAsync', () => {
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let token: Token;
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let transferAmount: BigNumber;
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before(() => {
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token = tokens[0];
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transferAmount = new BigNumber(42);
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});
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it('should successfully transfer tokens', async () => {
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const fromAddress = coinbase;
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const toAddress = addressWithoutFunds;
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const preBalance = await zeroEx.token.getBalanceAsync(token.address, toAddress);
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expect(preBalance).to.be.bignumber.equal(0);
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const txHash = await zeroEx.token.transferAsync(token.address, fromAddress, toAddress, transferAmount);
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await zeroEx.awaitTransactionMinedAsync(txHash);
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const postBalance = await zeroEx.token.getBalanceAsync(token.address, toAddress);
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return expect(postBalance).to.be.bignumber.equal(transferAmount);
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});
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it('should fail to transfer tokens if fromAddress has an insufficient balance', async () => {
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const fromAddress = addressWithoutFunds;
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const toAddress = coinbase;
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return expect(zeroEx.token.transferAsync(
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token.address, fromAddress, toAddress, transferAmount,
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)).to.be.rejectedWith(ZeroExError.InsufficientBalanceForTransfer);
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});
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it('should throw a CONTRACT_DOES_NOT_EXIST error for a non-existent token contract', async () => {
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const nonExistentTokenAddress = '0x9dd402f14d67e001d8efbe6583e51bf9706aa065';
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const fromAddress = coinbase;
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const toAddress = coinbase;
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return expect(zeroEx.token.transferAsync(
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nonExistentTokenAddress, fromAddress, toAddress, transferAmount,
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)).to.be.rejectedWith(ZeroExError.ContractDoesNotExist);
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});
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});
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describe('#transferFromAsync', () => {
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let token: Token;
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let toAddress: string;
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let senderAddress: string;
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before(async () => {
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token = tokens[0];
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toAddress = addressWithoutFunds;
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senderAddress = userAddresses[2];
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});
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it('should fail to transfer tokens if fromAddress has insufficient allowance set', async () => {
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const fromAddress = coinbase;
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const transferAmount = new BigNumber(42);
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const fromAddressBalance = await zeroEx.token.getBalanceAsync(token.address, fromAddress);
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expect(fromAddressBalance).to.be.bignumber.greaterThan(transferAmount);
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const fromAddressAllowance = await zeroEx.token.getAllowanceAsync(token.address, fromAddress,
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toAddress);
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expect(fromAddressAllowance).to.be.bignumber.equal(0);
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return expect(zeroEx.token.transferFromAsync(
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token.address, fromAddress, toAddress, senderAddress, transferAmount,
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)).to.be.rejectedWith(ZeroExError.InsufficientAllowanceForTransfer);
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});
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it('[regression] should fail to transfer tokens if set allowance for toAddress instead of senderAddress',
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async () => {
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const fromAddress = coinbase;
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const transferAmount = new BigNumber(42);
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await zeroEx.token.setAllowanceAsync(token.address, fromAddress, toAddress, transferAmount);
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return expect(zeroEx.token.transferFromAsync(
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token.address, fromAddress, toAddress, senderAddress, transferAmount,
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)).to.be.rejectedWith(ZeroExError.InsufficientAllowanceForTransfer);
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});
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it('should fail to transfer tokens if fromAddress has insufficient balance', async () => {
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const fromAddress = addressWithoutFunds;
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const transferAmount = new BigNumber(42);
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const fromAddressBalance = await zeroEx.token.getBalanceAsync(token.address, fromAddress);
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expect(fromAddressBalance).to.be.bignumber.equal(0);
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await zeroEx.token.setAllowanceAsync(token.address, fromAddress, senderAddress, transferAmount);
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const fromAddressAllowance = await zeroEx.token.getAllowanceAsync(token.address, fromAddress,
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senderAddress);
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expect(fromAddressAllowance).to.be.bignumber.equal(transferAmount);
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return expect(zeroEx.token.transferFromAsync(
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token.address, fromAddress, toAddress, senderAddress, transferAmount,
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)).to.be.rejectedWith(ZeroExError.InsufficientBalanceForTransfer);
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});
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it('should successfully transfer tokens', async () => {
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const fromAddress = coinbase;
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const preBalance = await zeroEx.token.getBalanceAsync(token.address, toAddress);
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expect(preBalance).to.be.bignumber.equal(0);
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const transferAmount = new BigNumber(42);
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await zeroEx.token.setAllowanceAsync(token.address, fromAddress, senderAddress, transferAmount);
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await zeroEx.token.transferFromAsync(token.address, fromAddress, toAddress, senderAddress,
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transferAmount);
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const postBalance = await zeroEx.token.getBalanceAsync(token.address, toAddress);
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return expect(postBalance).to.be.bignumber.equal(transferAmount);
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});
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it('should throw a CONTRACT_DOES_NOT_EXIST error for a non-existent token contract', async () => {
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const fromAddress = coinbase;
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const nonExistentTokenAddress = '0x9dd402f14d67e001d8efbe6583e51bf9706aa065';
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return expect(zeroEx.token.transferFromAsync(
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nonExistentTokenAddress, fromAddress, toAddress, senderAddress, new BigNumber(42),
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)).to.be.rejectedWith(ZeroExError.ContractDoesNotExist);
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});
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});
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describe('#getBalanceAsync', () => {
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describe('With web3 provider with accounts', () => {
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it('should return the balance for an existing ERC20 token', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const balance = await zeroEx.token.getBalanceAsync(token.address, ownerAddress);
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const expectedBalance = new BigNumber('100000000000000000000000000');
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return expect(balance).to.be.bignumber.equal(expectedBalance);
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});
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it('should throw a CONTRACT_DOES_NOT_EXIST error for a non-existent token contract', async () => {
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const nonExistentTokenAddress = '0x9dd402f14d67e001d8efbe6583e51bf9706aa065';
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const ownerAddress = coinbase;
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return expect(zeroEx.token.getBalanceAsync(nonExistentTokenAddress, ownerAddress))
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.to.be.rejectedWith(ZeroExError.ContractDoesNotExist);
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});
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it('should return a balance of 0 for a non-existent owner address', async () => {
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const token = tokens[0];
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const nonExistentOwner = '0x198c6ad858f213fb31b6fe809e25040e6b964593';
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const balance = await zeroEx.token.getBalanceAsync(token.address, nonExistentOwner);
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const expectedBalance = new BigNumber(0);
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return expect(balance).to.be.bignumber.equal(expectedBalance);
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});
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});
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describe('With web3 provider without accounts', () => {
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let zeroExWithoutAccounts: ZeroEx;
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before(async () => {
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const hasAddresses = false;
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const web3WithoutAccounts = web3Factory.create(hasAddresses);
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zeroExWithoutAccounts = new ZeroEx(web3WithoutAccounts.currentProvider);
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});
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it('should return balance even when called with Web3 provider instance without addresses', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const balance = await zeroExWithoutAccounts.token.getBalanceAsync(token.address, ownerAddress);
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const expectedBalance = new BigNumber('100000000000000000000000000');
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return expect(balance).to.be.bignumber.equal(expectedBalance);
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});
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});
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});
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describe('#setAllowanceAsync', () => {
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it('should set the spender\'s allowance', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const spenderAddress = addressWithoutFunds;
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const allowanceBeforeSet = await zeroEx.token.getAllowanceAsync(token.address, ownerAddress,
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spenderAddress);
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const expectedAllowanceBeforeAllowanceSet = new BigNumber(0);
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expect(allowanceBeforeSet).to.be.bignumber.equal(expectedAllowanceBeforeAllowanceSet);
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const amountInBaseUnits = new BigNumber(50);
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await zeroEx.token.setAllowanceAsync(token.address, ownerAddress, spenderAddress, amountInBaseUnits);
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const allowanceAfterSet = await zeroEx.token.getAllowanceAsync(token.address, ownerAddress, spenderAddress);
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const expectedAllowanceAfterAllowanceSet = amountInBaseUnits;
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return expect(allowanceAfterSet).to.be.bignumber.equal(expectedAllowanceAfterAllowanceSet);
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});
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});
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describe('#setUnlimitedAllowanceAsync', () => {
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it('should set the unlimited spender\'s allowance', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const spenderAddress = addressWithoutFunds;
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await zeroEx.token.setUnlimitedAllowanceAsync(token.address, ownerAddress, spenderAddress);
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const allowance = await zeroEx.token.getAllowanceAsync(token.address, ownerAddress, spenderAddress);
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return expect(allowance).to.be.bignumber.equal(zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
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});
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it('should reduce the gas cost for transfers including tokens with unlimited allowance support', async () => {
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const transferAmount = new BigNumber(5);
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const zrx = tokenUtils.getProtocolTokenOrThrow();
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const [, userWithNormalAllowance, userWithUnlimitedAllowance] = userAddresses;
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await zeroEx.token.setAllowanceAsync(zrx.address, coinbase, userWithNormalAllowance, transferAmount);
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await zeroEx.token.setUnlimitedAllowanceAsync(zrx.address, coinbase, userWithUnlimitedAllowance);
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const initBalanceWithNormalAllowance = await promisify(web3.eth.getBalance)(userWithNormalAllowance);
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const initBalanceWithUnlimitedAllowance = await promisify(web3.eth.getBalance)(userWithUnlimitedAllowance);
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await zeroEx.token.transferFromAsync(
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zrx.address, coinbase, userWithNormalAllowance, userWithNormalAllowance, transferAmount,
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);
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await zeroEx.token.transferFromAsync(
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zrx.address, coinbase, userWithUnlimitedAllowance, userWithUnlimitedAllowance, transferAmount,
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);
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const finalBalanceWithNormalAllowance = await promisify(web3.eth.getBalance)(userWithNormalAllowance);
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const finalBalanceWithUnlimitedAllowance = await promisify(web3.eth.getBalance)(userWithUnlimitedAllowance);
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const normalGasCost = initBalanceWithNormalAllowance.minus(finalBalanceWithNormalAllowance);
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const unlimitedGasCost = initBalanceWithUnlimitedAllowance.minus(finalBalanceWithUnlimitedAllowance);
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// In theory the gas cost with unlimited allowance should be smaller, but with testrpc it's actually bigger.
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// This needs to be investigated in ethereumjs-vm. This test is essentially a repro.
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// TODO: Make this test pass with inverted assertion.
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expect(unlimitedGasCost.toNumber()).to.be.gt(normalGasCost.toNumber());
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});
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});
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describe('#getAllowanceAsync', () => {
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describe('With web3 provider with accounts', () => {
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it('should get the proxy allowance', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const spenderAddress = addressWithoutFunds;
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const amountInBaseUnits = new BigNumber(50);
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await zeroEx.token.setAllowanceAsync(token.address, ownerAddress, spenderAddress, amountInBaseUnits);
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const allowance = await zeroEx.token.getAllowanceAsync(token.address, ownerAddress, spenderAddress);
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const expectedAllowance = amountInBaseUnits;
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return expect(allowance).to.be.bignumber.equal(expectedAllowance);
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});
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it('should return 0 if no allowance set yet', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const spenderAddress = addressWithoutFunds;
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const allowance = await zeroEx.token.getAllowanceAsync(token.address, ownerAddress, spenderAddress);
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const expectedAllowance = new BigNumber(0);
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return expect(allowance).to.be.bignumber.equal(expectedAllowance);
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});
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});
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describe('With web3 provider without accounts', () => {
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let zeroExWithoutAccounts: ZeroEx;
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before(async () => {
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const hasAddresses = false;
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const web3WithoutAccounts = web3Factory.create(hasAddresses);
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zeroExWithoutAccounts = new ZeroEx(web3WithoutAccounts.currentProvider);
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});
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it('should get the proxy allowance', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const spenderAddress = addressWithoutFunds;
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const amountInBaseUnits = new BigNumber(50);
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await zeroEx.token.setAllowanceAsync(token.address, ownerAddress, spenderAddress, amountInBaseUnits);
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const allowance = await zeroExWithoutAccounts.token.getAllowanceAsync(
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token.address, ownerAddress, spenderAddress,
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);
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const expectedAllowance = amountInBaseUnits;
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return expect(allowance).to.be.bignumber.equal(expectedAllowance);
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});
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});
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});
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describe('#getProxyAllowanceAsync', () => {
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it('should get the proxy allowance', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const amountInBaseUnits = new BigNumber(50);
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await zeroEx.token.setProxyAllowanceAsync(token.address, ownerAddress, amountInBaseUnits);
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const allowance = await zeroEx.token.getProxyAllowanceAsync(token.address, ownerAddress);
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const expectedAllowance = amountInBaseUnits;
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return expect(allowance).to.be.bignumber.equal(expectedAllowance);
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});
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});
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describe('#setProxyAllowanceAsync', () => {
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it('should set the proxy allowance', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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const allowanceBeforeSet = await zeroEx.token.getProxyAllowanceAsync(token.address, ownerAddress);
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const expectedAllowanceBeforeAllowanceSet = new BigNumber(0);
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expect(allowanceBeforeSet).to.be.bignumber.equal(expectedAllowanceBeforeAllowanceSet);
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const amountInBaseUnits = new BigNumber(50);
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await zeroEx.token.setProxyAllowanceAsync(token.address, ownerAddress, amountInBaseUnits);
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const allowanceAfterSet = await zeroEx.token.getProxyAllowanceAsync(token.address, ownerAddress);
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const expectedAllowanceAfterAllowanceSet = amountInBaseUnits;
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return expect(allowanceAfterSet).to.be.bignumber.equal(expectedAllowanceAfterAllowanceSet);
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});
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});
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describe('#setUnlimitedProxyAllowanceAsync', () => {
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it('should set the unlimited proxy allowance', async () => {
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const token = tokens[0];
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const ownerAddress = coinbase;
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await zeroEx.token.setUnlimitedProxyAllowanceAsync(token.address, ownerAddress);
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const allowance = await zeroEx.token.getProxyAllowanceAsync(token.address, ownerAddress);
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return expect(allowance).to.be.bignumber.equal(zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
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});
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});
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describe('#subscribe', () => {
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const indexFilterValues = {};
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const shouldThrowOnInsufficientBalanceOrAllowance = true;
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let tokenAddress: string;
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const transferAmount = new BigNumber(42);
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const allowanceAmount = new BigNumber(42);
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before(() => {
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const token = tokens[0];
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tokenAddress = token.address;
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});
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afterEach(() => {
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zeroEx.token.unsubscribeAll();
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});
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// Hack: Mocha does not allow a test to be both async and have a `done` callback
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// Since we need to await the receipt of the event in the `subscribe` callback,
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// we do need both. A hack is to make the top-level a sync fn w/ a done callback and then
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// wrap the rest of the test in an async block
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// Source: https://github.com/mochajs/mocha/issues/2407
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it('Should receive the Transfer event when tokens are transfered', (done: DoneCallback) => {
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(async () => {
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const callback = (logEvent: LogEvent<TransferContractEventArgs>) => {
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expect(logEvent).to.not.be.undefined();
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const args = logEvent.args;
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expect(args._from).to.be.equal(coinbase);
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expect(args._to).to.be.equal(addressWithoutFunds);
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expect(args._value).to.be.bignumber.equal(transferAmount);
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done();
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};
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zeroEx.token.subscribe(
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tokenAddress, TokenEvents.Transfer, indexFilterValues, callback);
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await zeroEx.token.transferAsync(tokenAddress, coinbase, addressWithoutFunds, transferAmount);
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})().catch(done);
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});
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it('Should receive the Approval event when allowance is being set', (done: DoneCallback) => {
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(async () => {
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const callback = (logEvent: LogEvent<ApprovalContractEventArgs>) => {
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expect(logEvent).to.not.be.undefined();
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const args = logEvent.args;
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expect(args._owner).to.be.equal(coinbase);
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expect(args._spender).to.be.equal(addressWithoutFunds);
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expect(args._value).to.be.bignumber.equal(allowanceAmount);
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done();
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};
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zeroEx.token.subscribe(
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tokenAddress, TokenEvents.Approval, indexFilterValues, callback);
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await zeroEx.token.setAllowanceAsync(tokenAddress, coinbase, addressWithoutFunds, allowanceAmount);
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})().catch(done);
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});
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it('Outstanding subscriptions are cancelled when zeroEx.setProviderAsync called', (done: DoneCallback) => {
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(async () => {
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const callbackNeverToBeCalled = (logEvent: LogEvent<TransferContractEventArgs>) => {
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done(new Error('Expected this subscription to have been cancelled'));
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};
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zeroEx.token.subscribe(
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tokenAddress, TokenEvents.Transfer, indexFilterValues, callbackNeverToBeCalled,
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);
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const callbackToBeCalled = (logEvent: LogEvent<TransferContractEventArgs>) => {
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done();
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};
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const newProvider = web3Factory.getRpcProvider();
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await zeroEx.setProviderAsync(newProvider);
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zeroEx.token.subscribe(
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tokenAddress, TokenEvents.Transfer, indexFilterValues, callbackToBeCalled,
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);
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await zeroEx.token.transferAsync(tokenAddress, coinbase, addressWithoutFunds, transferAmount);
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})().catch(done);
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});
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it('Should cancel subscription when unsubscribe called', (done: DoneCallback) => {
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(async () => {
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const callbackNeverToBeCalled = (logEvent: LogEvent<TokenContractEventArgs>) => {
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done(new Error('Expected this subscription to have been cancelled'));
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};
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const subscriptionToken = zeroEx.token.subscribe(
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tokenAddress, TokenEvents.Transfer, indexFilterValues, callbackNeverToBeCalled);
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zeroEx.token.unsubscribe(subscriptionToken);
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await zeroEx.token.transferAsync(tokenAddress, coinbase, addressWithoutFunds, transferAmount);
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done();
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})().catch(done);
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});
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});
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describe('#getLogsAsync', () => {
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let tokenAddress: string;
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let tokenTransferProxyAddress: string;
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const subscriptionOpts: SubscriptionOpts = {
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fromBlock: BlockParamLiteral.Earliest,
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toBlock: BlockParamLiteral.Latest,
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};
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let txHash: string;
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before(async () => {
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const token = tokens[0];
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tokenAddress = token.address;
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|
tokenTransferProxyAddress = await zeroEx.proxy.getContractAddressAsync();
|
|
});
|
|
it('should get logs with decoded args emitted by Approval', async () => {
|
|
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(tokenAddress, coinbase);
|
|
await zeroEx.awaitTransactionMinedAsync(txHash);
|
|
const eventName = TokenEvents.Approval;
|
|
const indexFilterValues = {};
|
|
const logs = await zeroEx.token.getLogsAsync<ApprovalContractEventArgs>(
|
|
tokenAddress, eventName, subscriptionOpts, indexFilterValues,
|
|
);
|
|
expect(logs).to.have.length(1);
|
|
const args = logs[0].args;
|
|
expect(logs[0].event).to.be.equal(eventName);
|
|
expect(args._owner).to.be.equal(coinbase);
|
|
expect(args._spender).to.be.equal(tokenTransferProxyAddress);
|
|
expect(args._value).to.be.bignumber.equal(zeroEx.token.UNLIMITED_ALLOWANCE_IN_BASE_UNITS);
|
|
});
|
|
it('should only get the logs with the correct event name', async () => {
|
|
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(tokenAddress, coinbase);
|
|
await zeroEx.awaitTransactionMinedAsync(txHash);
|
|
const differentEventName = TokenEvents.Transfer;
|
|
const indexFilterValues = {};
|
|
const logs = await zeroEx.token.getLogsAsync(
|
|
tokenAddress, differentEventName, subscriptionOpts, indexFilterValues,
|
|
);
|
|
expect(logs).to.have.length(0);
|
|
});
|
|
it('should only get the logs with the correct indexed fields', async () => {
|
|
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(tokenAddress, coinbase);
|
|
await zeroEx.awaitTransactionMinedAsync(txHash);
|
|
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(tokenAddress, addressWithoutFunds);
|
|
await zeroEx.awaitTransactionMinedAsync(txHash);
|
|
const eventName = TokenEvents.Approval;
|
|
const indexFilterValues = {
|
|
_owner: coinbase,
|
|
};
|
|
const logs = await zeroEx.token.getLogsAsync<ApprovalContractEventArgs>(
|
|
tokenAddress, eventName, subscriptionOpts, indexFilterValues,
|
|
);
|
|
expect(logs).to.have.length(1);
|
|
const args = logs[0].args;
|
|
expect(args._owner).to.be.equal(coinbase);
|
|
});
|
|
});
|
|
});
|