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Add a test for rounding error

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This commit is contained in:
Leonid Logvinov 2017-11-13 18:57:38 -05:00
parent 33f479c271
commit 02bbcf6b0e
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1 changed files with 23 additions and 0 deletions
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23
packages/0x.js/test/order_state_watcher_test.ts
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@ -337,6 +337,29 @@ describe('OrderStateWatcher', () => {
await zeroEx.exchange.cancelOrderAsync(signedOrder, fillableAmount);
})().catch(done);
});
it('should emit orderStateInvalid when within rounding error range', (done: DoneCallback) => {
(async () => {
const fillableAmountInBaseUnits = new BigNumber(10).pow(18);
const remainingFillableAmountInBaseUnits = new BigNumber(10).pow(2);
signedOrder = await fillScenarios.createFillableSignedOrderAsync(
makerToken.address, takerToken.address, maker, taker, fillableAmountInBaseUnits,
);
const orderHash = ZeroEx.getOrderHashHex(signedOrder);
zeroEx.orderStateWatcher.addOrder(signedOrder);
const callback = reportCallbackErrors(done)((orderState: OrderState) => {
expect(orderState.isValid).to.be.false();
const invalidOrderState = orderState as OrderStateInvalid;
expect(invalidOrderState.orderHash).to.be.equal(orderHash);
expect(invalidOrderState.error).to.be.equal(ExchangeContractErrs.OrderFillRoundingError);
done();
});
zeroEx.orderStateWatcher.subscribe(callback);
await zeroEx.exchange.cancelOrderAsync(
signedOrder, fillableAmountInBaseUnits.minus(remainingFillableAmountInBaseUnits),
);
})().catch(done);
});
it('should emit orderStateValid when watched order partially cancelled', (done: DoneCallback) => {
(async () => {
signedOrder = await fillScenarios.createFillableSignedOrderAsync(