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Add etherToken.getLogsAsync and etherToken.subscribe with tests

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This commit is contained in:
Leonid Logvinov
2017-12-19 14:15:14 +01:00
parent b603197ae8
commit 613fada49f
8 changed files with 274 additions and 8 deletions
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171
packages/0x.js/test/ether_token_wrapper_test.ts
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@@ -4,11 +4,23 @@ import * as chai from 'chai';
import 'mocha';
import * as Web3 from 'web3';
import {ZeroEx, ZeroExError} from '../src';
import {
ApprovalContractEventArgs,
BlockParamLiteral,
BlockRange,
DecodedLogEvent,
EtherTokenEvents,
Token,
TransferContractEventArgs,
ZeroEx,
ZeroExError,
} from '../src';
import {artifacts} from '../src/artifacts';
import {DoneCallback} from '../src/types';
import {chaiSetup} from './utils/chai_setup';
import {constants} from './utils/constants';
import {TokenUtils} from './utils/token_utils';
import {web3Factory} from './utils/web3_factory';
chaiSetup.configure();
@@ -24,11 +36,13 @@ const MAX_REASONABLE_GAS_COST_IN_WEI = 62517;
describe('EtherTokenWrapper', () => {
let web3: Web3;
let zeroEx: ZeroEx;
let tokens: Token[];
let userAddresses: string[];
let addressWithETH: string;
let wethContractAddress: string;
let depositWeiAmount: BigNumber;
let decimalPlaces: number;
let addressWithoutFunds: string;
const gasPrice = new BigNumber(1);
const zeroExConfig = {
gasPrice,
@@ -37,11 +51,13 @@ describe('EtherTokenWrapper', () => {
before(async () => {
web3 = web3Factory.create();
zeroEx = new ZeroEx(web3.currentProvider, zeroExConfig);
tokens = await zeroEx.tokenRegistry.getTokensAsync();
userAddresses = await zeroEx.getAvailableAddressesAsync();
addressWithETH = userAddresses[0];
wethContractAddress = (zeroEx.etherToken as any)._getContractAddress(artifacts.EtherTokenArtifact);
depositWeiAmount = (zeroEx as any)._web3Wrapper.toWei(new BigNumber(5));
decimalPlaces = 7;
addressWithoutFunds = userAddresses[1];
});
beforeEach(async () => {
await blockchainLifecycle.startAsync();
@@ -113,4 +129,157 @@ describe('EtherTokenWrapper', () => {
).to.be.rejectedWith(ZeroExError.InsufficientWEthBalanceForWithdrawal);
});
});
describe('#subscribe', () => {
const indexFilterValues = {};
let etherTokenAddress: string;
const transferAmount = new BigNumber(42);
const allowanceAmount = new BigNumber(42);
before(() => {
const tokenUtils = new TokenUtils(tokens);
const etherToken = tokenUtils.getWethTokenOrThrow();
etherTokenAddress = etherToken.address;
});
afterEach(() => {
zeroEx.etherToken.unsubscribeAll();
});
// Hack: Mocha does not allow a test to be both async and have a `done` callback
// Since we need to await the receipt of the event in the `subscribe` callback,
// we do need both. A hack is to make the top-level a sync fn w/ a done callback and then
// wrap the rest of the test in an async block
// Source: https://github.com/mochajs/mocha/issues/2407
it('Should receive the Transfer event when tokens are transfered', (done: DoneCallback) => {
(async () => {
const callback = (err: Error, logEvent: DecodedLogEvent<TransferContractEventArgs>) => {
expect(logEvent).to.not.be.undefined();
expect(logEvent.isRemoved).to.be.false();
expect(logEvent.log.logIndex).to.be.equal(0);
expect(logEvent.log.transactionIndex).to.be.equal(0);
expect(logEvent.log.blockNumber).to.be.a('number');
const args = logEvent.log.args;
expect(args._from).to.be.equal(addressWithETH);
expect(args._to).to.be.equal(addressWithoutFunds);
expect(args._value).to.be.bignumber.equal(transferAmount);
done();
};
await zeroEx.etherToken.depositAsync(etherTokenAddress, transferAmount, addressWithETH);
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Transfer, indexFilterValues, callback);
await zeroEx.token.transferAsync(
etherTokenAddress, addressWithETH, addressWithoutFunds, transferAmount,
);
})().catch(done);
});
it('Should receive the Approval event when allowance is being set', (done: DoneCallback) => {
(async () => {
const callback = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
expect(logEvent).to.not.be.undefined();
expect(logEvent.isRemoved).to.be.false();
const args = logEvent.log.args;
expect(args._owner).to.be.equal(addressWithETH);
expect(args._spender).to.be.equal(addressWithoutFunds);
expect(args._value).to.be.bignumber.equal(allowanceAmount);
done();
};
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Approval, indexFilterValues, callback);
await zeroEx.token.setAllowanceAsync(
etherTokenAddress, addressWithETH, addressWithoutFunds, allowanceAmount,
);
})().catch(done);
});
it('Outstanding subscriptions are cancelled when zeroEx.setProvider called', (done: DoneCallback) => {
(async () => {
const callbackNeverToBeCalled = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
done(new Error('Expected this subscription to have been cancelled'));
};
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Transfer, indexFilterValues, callbackNeverToBeCalled,
);
const callbackToBeCalled = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
done();
};
const newProvider = web3Factory.getRpcProvider();
zeroEx.setProvider(newProvider, constants.TESTRPC_NETWORK_ID);
await zeroEx.etherToken.depositAsync(etherTokenAddress, transferAmount, addressWithETH);
zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Transfer, indexFilterValues, callbackToBeCalled,
);
await zeroEx.token.transferAsync(
etherTokenAddress, addressWithETH, addressWithoutFunds, transferAmount,
);
})().catch(done);
});
it('Should cancel subscription when unsubscribe called', (done: DoneCallback) => {
(async () => {
const callbackNeverToBeCalled = (err: Error, logEvent: DecodedLogEvent<ApprovalContractEventArgs>) => {
done(new Error('Expected this subscription to have been cancelled'));
};
await zeroEx.etherToken.depositAsync(etherTokenAddress, transferAmount, addressWithETH);
const subscriptionToken = zeroEx.etherToken.subscribe(
etherTokenAddress, EtherTokenEvents.Transfer, indexFilterValues, callbackNeverToBeCalled);
zeroEx.etherToken.unsubscribe(subscriptionToken);
await zeroEx.token.transferAsync(
etherTokenAddress, addressWithETH, addressWithoutFunds, transferAmount,
);
done();
})().catch(done);
});
});
describe('#getLogsAsync', () => {
let etherTokenAddress: string;
let tokenTransferProxyAddress: string;
const blockRange: BlockRange = {
fromBlock: 0,
toBlock: BlockParamLiteral.Latest,
};
let txHash: string;
before(() => {
addressWithETH = userAddresses[0];
const tokenUtils = new TokenUtils(tokens);
const etherToken = tokenUtils.getWethTokenOrThrow();
etherTokenAddress = etherToken.address;
tokenTransferProxyAddress = zeroEx.proxy.getContractAddress();
});
it('should get logs with decoded args emitted by Approval', async () => {
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(etherTokenAddress, addressWithETH);
await zeroEx.awaitTransactionMinedAsync(txHash);
const eventName = EtherTokenEvents.Approval;
const indexFilterValues = {};
const logs = await zeroEx.etherToken.getLogsAsync<ApprovalContractEventArgs>(
etherTokenAddress, eventName, blockRange, 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(addressWithETH);
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(etherTokenAddress, addressWithETH);
await zeroEx.awaitTransactionMinedAsync(txHash);
const differentEventName = EtherTokenEvents.Transfer;
const indexFilterValues = {};
const logs = await zeroEx.etherToken.getLogsAsync(
etherTokenAddress, differentEventName, blockRange, indexFilterValues,
);
expect(logs).to.have.length(0);
});
it('should only get the logs with the correct indexed fields', async () => {
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(etherTokenAddress, addressWithETH);
await zeroEx.awaitTransactionMinedAsync(txHash);
txHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(etherTokenAddress, addressWithoutFunds);
await zeroEx.awaitTransactionMinedAsync(txHash);
const eventName = EtherTokenEvents.Approval;
const indexFilterValues = {
_owner: addressWithETH,
};
const logs = await zeroEx.etherToken.getLogsAsync<ApprovalContractEventArgs>(
etherTokenAddress, eventName, blockRange, indexFilterValues,
);
expect(logs).to.have.length(1);
const args = logs[0].args;
expect(args._owner).to.be.equal(addressWithETH);
});
});
});