Stubbing a method that takes Class as parameter with Mockito

Question

There is a generic method that takes a class as parameter and I have problems stubbing it with Mockito. The method looks like this:

public 

        

Answer 1

The problem is, you cannot mix argument matchers and real arguments in a mocked call. So, rather do this:

when(serviceValidatorStub.validate(
    any(),
    isA(UserCommentRequestValidator.class),
    eq(UserCommentResponse.class),
    eq(UserCommentError.class))
).thenReturn(new UserCommentResponse());

Notice the use of the eq() argument matcher for matching equality.

see: https://static.javadoc.io/org.mockito/mockito-core/1.10.19/org/mockito/Matchers.html#eq(T)

Also, you could use the same() argument matcher for Class types - this matches same identity, like the == Java operator.