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authorFabio Berger <me@fabioberger.com>2017-06-02 18:32:38 +0800
committerFabio Berger <me@fabioberger.com>2017-06-02 18:32:38 +0800
commitefcfa1af702ca78d4d15a686136635eb775ce570 (patch)
tree8d7d7e410e4a0576dd621aca663f203e813e4df7 /test
parentfc3be810a25ce98402c686bd41606e08e7b5c2ac (diff)
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Add tests for subscribeAsync, making sure events are caught and that subscriptions are removed on provider change
Diffstat (limited to 'test')
-rw-r--r--test/exchange_wrapper_test.ts84
1 files changed, 83 insertions, 1 deletions
diff --git a/test/exchange_wrapper_test.ts b/test/exchange_wrapper_test.ts
index 8fa03ea81..77e241e79 100644
--- a/test/exchange_wrapper_test.ts
+++ b/test/exchange_wrapper_test.ts
@@ -10,7 +10,15 @@ import {web3Factory} from './utils/web3_factory';
import {ZeroEx} from '../src/0x.js';
import {BlockchainLifecycle} from './utils/blockchain_lifecycle';
import {orderFactory} from './utils/order_factory';
-import {FillOrderValidationErrs, Token, SignedOrder} from '../src/types';
+import {
+ FillOrderValidationErrs,
+ Token,
+ SignedOrder,
+ SubscriptionOpts,
+ ExchangeEvents,
+ ContractEvent,
+ DoneCallback,
+} from '../src/types';
import {FillScenarios} from './utils/fill_scenarios';
chai.use(dirtyChai);
@@ -294,4 +302,78 @@ describe('ExchangeWrapper', () => {
});
});
});
+ describe('#subscribeAsync', () => {
+ const indexFilterValues = {};
+ const shouldCheckTransfer = false;
+ let makerTokenAddress: string;
+ let takerTokenAddress: string;
+ let coinBase: string;
+ let takerAddress: string;
+ let makerAddress: string;
+ let fillableAmount: BigNumber.BigNumber;
+ let signedOrder: SignedOrder;
+ before(() => {
+ [coinBase, makerAddress, takerAddress] = userAddresses;
+ const [makerToken, takerToken] = tokens;
+ makerTokenAddress = makerToken.address;
+ takerTokenAddress = takerToken.address;
+ });
+ beforeEach(async () => {
+ fillableAmount = new BigNumber(5);
+ signedOrder = await fillScenarios.createAFillableSignedOrderAsync(
+ makerTokenAddress, takerTokenAddress, makerAddress, takerAddress, fillableAmount,
+ );
+ });
+ afterEach(async () => {
+ (zeroEx.exchange as any).stopWatchingExchangeLogEventsAsync();
+ });
+ // 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 `subscribeAsync` 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 LogFill event when an order is filled', (done: DoneCallback) => {
+ (async () => {
+ const subscriptionOpts: SubscriptionOpts = {
+ fromBlock: 0,
+ toBlock: 'latest',
+ };
+ await zeroEx.exchange.subscribeAsync(ExchangeEvents.LogFill, subscriptionOpts,
+ indexFilterValues, (err: Error, event: ContractEvent) => {
+ expect(err).to.be.null();
+ expect(event).to.not.be.undefined();
+ done();
+ });
+ const fillTakerAmountInBaseUnits = new BigNumber(1);
+ zeroEx.setTransactionSenderAccount(takerAddress);
+ await zeroEx.exchange.fillOrderAsync(signedOrder, fillTakerAmountInBaseUnits, shouldCheckTransfer);
+ })();
+ });
+ it('Outstanding subscriptions are cancelled when zeroEx.setProviderAsync called', (done: DoneCallback) => {
+ (async () => {
+ const subscriptionOpts: SubscriptionOpts = {
+ fromBlock: 0,
+ toBlock: 'latest',
+ };
+ await zeroEx.exchange.subscribeAsync(ExchangeEvents.LogFill, subscriptionOpts,
+ indexFilterValues, (err: Error, event: ContractEvent) => {
+ done(new Error('Expected this subscription to have been cancelled'));
+ });
+
+ const newProvider = web3Factory.getRpcProvider();
+ await zeroEx.setProviderAsync(newProvider);
+
+ await zeroEx.exchange.subscribeAsync(ExchangeEvents.LogFill, subscriptionOpts,
+ indexFilterValues, (err: Error, event: ContractEvent) => {
+ expect(err).to.be.null();
+ expect(event).to.not.be.undefined();
+ done();
+ });
+
+ const fillTakerAmountInBaseUnits = new BigNumber(1);
+ zeroEx.setTransactionSenderAccount(takerAddress);
+ await zeroEx.exchange.fillOrderAsync(signedOrder, fillTakerAmountInBaseUnits, shouldCheckTransfer);
+ })();
+ });
+ });
});