Add a test for rounding error
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@ -337,6 +337,29 @@ describe('OrderStateWatcher', () => {
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await zeroEx.exchange.cancelOrderAsync(signedOrder, fillableAmount);
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})().catch(done);
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});
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it('should emit orderStateInvalid when within rounding error range', (done: DoneCallback) => {
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(async () => {
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const fillableAmountInBaseUnits = new BigNumber(10).pow(18);
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const remainingFillableAmountInBaseUnits = new BigNumber(10).pow(2);
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signedOrder = await fillScenarios.createFillableSignedOrderAsync(
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makerToken.address, takerToken.address, maker, taker, fillableAmountInBaseUnits,
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);
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const orderHash = ZeroEx.getOrderHashHex(signedOrder);
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zeroEx.orderStateWatcher.addOrder(signedOrder);
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const callback = reportCallbackErrors(done)((orderState: OrderState) => {
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expect(orderState.isValid).to.be.false();
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const invalidOrderState = orderState as OrderStateInvalid;
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expect(invalidOrderState.orderHash).to.be.equal(orderHash);
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expect(invalidOrderState.error).to.be.equal(ExchangeContractErrs.OrderFillRoundingError);
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done();
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});
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zeroEx.orderStateWatcher.subscribe(callback);
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await zeroEx.exchange.cancelOrderAsync(
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signedOrder, fillableAmountInBaseUnits.minus(remainingFillableAmountInBaseUnits),
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);
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})().catch(done);
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});
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it('should emit orderStateValid when watched order partially cancelled', (done: DoneCallback) => {
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(async () => {
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signedOrder = await fillScenarios.createFillableSignedOrderAsync(
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