public async Task PostNewMessagesCallsTheRepositoryInsertMethod( Mock<IUsernameProvider> usernameProvider, Mock<IRepository<ChatMessageDataModel>> messageRepository, string hubId, string channelId, string username, NewMessageModel newMessage, ChatMessageDataModel createdMessage) { AutoMapper.Mapper.CreateMap<ChatMessage, ChatMessageDataModel>(); usernameProvider.Setup(p => p.GetUsername()).Returns(Task.FromResult(username)); messageRepository.Setup(r => r.Insert(It.IsAny<ChatMessageDataModel>())).Returns(Task.FromResult(createdMessage)); var controllerUnderTest = new MessagesController(usernameProvider.Object, messageRepository.Object); await controllerUnderTest.PostNewMessage(hubId, channelId, newMessage); var expectedMessageParameter = new ChatMessage(username, channelId, newMessage.Message, DateTime.Now); messageRepository.Verify(mock => mock.Insert(It.Is<ChatMessageDataModel>(parameter => parameter.ChannelId == channelId && parameter.Message == newMessage.Message && parameter.Username == username )), Times.Once()); }