EasyMock and generic params

Question

I'm trying to get to grips with EasyMock to mock some calls to Jersey client APIs... I'm trying to mock a call to the following call Builder API:

<T> T post(Entity<?> entity, Class<T> responseType);

doing the following:

 EasyMock.expect(mockInvocationBuilder.post(Entity.json(request), Response.class)).andReturn(mockResponse).anyTimes();

this is giving me the following error:

java.lang.AssertionError: 
  Unexpected method call Builder.post(Entity{entity=com.ibm.apin.apim.request.CreateOrgRequest@936a7073, variant=Variant[mediaType=application/json, language=null, encoding=null], annotations=[]}, class javax.ws.rs.core.Response):

Can anyone see what I'm doing wrong here and how I can mock this correctly?

Answer 1

See EasyMock User Guide:

To match an actual method call on the Mock Object with an expectation, Object arguments are by default compared with equals().

You have to override equals(), use a built-in argument matcher (like EasyMock#anyObject), write your own IArgumentMatcher or use a Capture.