Add test when the order was already cancelled or filled

1 files changed, 5 insertions, 0 deletions

diff --git a/test/exchange_wrapper_test.ts b/test/exchange_wrapper_test.ts
index b9400bf04..90ebe5b38 100644
--- a/test/exchange_wrapper_test.ts
+++ b/test/exchange_wrapper_test.ts
@@ -358,6 +358,11 @@ describe('ExchangeWrapper', () => {
                 return expect(zeroEx.exchange.cancelOrderAsync(expiredSignedOrder, cancelAmount))
                     .to.be.rejectedWith(ExchangeContractErrs.ORDER_CANCEL_EXPIRED);
             });
+            it.only('should throw when order is already cancelled or filled', async () => {
+                await zeroEx.exchange.cancelOrderAsync(signedOrder, fillableAmount);
+                return expect(zeroEx.exchange.cancelOrderAsync(signedOrder, fillableAmount))
+                    .to.be.rejectedWith(ExchangeContractErrs.ORDER_ALREADY_CANCELLED_OR_FILLED);
+            });
         });
         describe('successful cancels', () => {
             it('should cancel an order', async () => {