public void ChangeFirstNameCatchesException() { MockedDummyProfileScreenSettingsService _mockedDummy = new MockedDummyProfileScreenSettingsService(); IProfileScreen _profileScreen = new MockedDummyProfileScreenView(); ISettingsPresenter _profileScreenPresenter = new SettingsPresenter(_profileScreen, _mockedDummy._profileScreenSettingsService); _mockedDummy.error = true; _profileScreenPresenter.ChangeFirstName("MasterGigo"); Assert.AreNotEqual("MasterGigo", _profileScreen.FirstName); }