Can Mockito verify parameters based on their values at the time of method call?
I have a Foo class which is SUT and a Bar class, which is its collaborator. Foo calls run(List on the Bar with "expectedList" as an argument. Then, Foo will add a few more elements to this List so that its state will be different from what it was at the time of calling run(). Here's my test case.
@Test
public void testFoo() {
Bar collaborator = spy(new Bar());
Foo sut = new Foo(collaborator);
verify(collaborator).run(expectedList);
}
Note that the collaborator is actually a spy object rather than a mock. This test case will fail because even though run() was called with an argument equal to expectedList, it was modified since and its current value no longer equals expectedList. However, this is the way it is supposed to work, so I'm wondering if there's a way to have Mockito store the snapshot of parameters when a method is called and verify them based on these values rather than the most recent values.