public void CheckForUserCreated() { IUserService usersService = new UserService(usersRepoMock.Object); IKartService kartsService = new KartService(kartsMock.Object, usersService, productsServiceMock.Object); Kart kart = new Kart(); kartsService.Create(kart); Assert.True(userList.Count == 1); Assert.True(kart.User == userList.LastOrDefault()); }