I am using
This can't be done with Mockito, since the object being created is not a mocked object. This also means that you won't be able to verify anything on that new object either.
I've worked around this scenario in the past by using a
Factory to create the object rather than newing it up. You're then able to mock the
Factory to return the object required for your test.
Whether you're happy changing your design to suit your tests is up to you!