Robolectric buildActivity() with Mockito spy?

Question

It seems to me that building an Activity unit test with Robolectric\'s lifecycle utilities (starting with Robolectric.buildActivity()) and spying on the same Ac

Answer 1

At least for the case where the activity is not the object under test, but only a dummy activity which hosts a fragment under test, it is possible to inject a mock into the test activity which can verify interactions with the activity via the communication interface between fragment and activity (following http://developer.android.com/training/basics/fragments/communicating.html).