Delay EasyMock verification

Question

I'm using EasyMock to create mock objects for JUnit testing in Java. I create a mock object and pass it to another thread where it expects methods to be called. In the other thread, the calls are enclosed in a try/catch(Throwable) block, so when an unexpected call occurs on the mock and it thus throws AssertionError, that error is caught by the catch block and treated. So, even though an unexpected call occurred, the test passes.

In order to have the test fail as expected, I would like to delay all verification of calls to the EasyMock.verify(mock) call made in the test-runner thread at the end. Is this possible and how?

Answer 1

The correct solution I'd guess is to stop catching Throwable. Doing so catches all Errors as you're finding, which can be quite dangerous... are you absolutely positively 100% sure you need to catch Throwable? Why?

(If it turns out you do, you could catch AssertionError specifically and rethrow it. But that's ugly!)

Answer 2

I'm not sure about how to do this with EasyMock, but this behavior is possible with Mockito because verification assertions can be specified at the end of the test.

Answer 3

Try using nice mocks:

http://easymock.org/EasyMock2_5_2_Documentation.html

"Nice Mocks On a Mock Object returned by createMock() the default behavior for all methods is to throw an AssertionError for all unexpected method calls. If you would like a "nice" Mock Object that by default allows all method calls and returns appropriate empty values (0, null or false), use createNiceMock() instead. "

Default values will be returned for unexpected calls instead of throwing AssertionError, but you can still verify them with the verify() method (in which case the AssertionErrors will be thrown)