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-rw-r--r--packages/0x.js/test/order_state_watcher_test.ts23
1 files changed, 23 insertions, 0 deletions
diff --git a/packages/0x.js/test/order_state_watcher_test.ts b/packages/0x.js/test/order_state_watcher_test.ts
index 8236a6d6b..b7b5842c9 100644
--- a/packages/0x.js/test/order_state_watcher_test.ts
+++ b/packages/0x.js/test/order_state_watcher_test.ts
@@ -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(