public void DeclineFriendRequestTest() { var request = new FriendRequestDummyCreator().Create(); friendService.DeclineRequest(request); friendRepository.Verify(m => m.Add(It.IsAny <Friend>()), Times.Never); friendRepository.Verify(m => m.RemoveFriendshipRequest(It.Is <FriendRequest>(r => r == request)), Times.Once); warningService.Verify(m => m.AddWarning(It.IsAny <int>(), It.IsAny <string>()), Times.Once); }