public async void TestDelete_InvalidRating_ShouldFail(string value)
        {
            // Arrange
            RatingsController controller = new RatingsController(_context);
            int gameId = int.Parse(value);

            try
            {
                // Act
                var result = await controller.DeleteConfirmed(gameId);
            }
            // Assert
            catch (Exception ex)
            {
                Assert.Equal("System.ArgumentException", ex.GetType().ToString());
            }
        }
        public void DeleteConfirmed_RemoveAnItem()
        {
            // Arrange
            var ratingData = new List <Rating> {
                new Rating()
                {
                    User_Rating_ID = 1, User_ID = 1, User_Rating = 1, Game_ID = 1, User = new User()
                    {
                        User_ID = 1, User_Name = "One"
                    }, Game = new Game()
                    {
                        Game_ID = 1, Game_Name = "One"
                    }
                },
                new Rating()
                {
                    User_Rating_ID = 2, User_ID = 1, User_Rating = 1, Game_ID = 2
                }
            };

            var mockSet = Mock.CreateMockSet(ratingData);

            mockSet.Setup(m => m.Find(It.IsAny <object[]>())).Returns <object[]>(ids => ratingData.FirstOrDefault(d => d.User_Rating_ID == (int)ids[0]));
            var mockdb = new Mock <PlayerMatcherEntitiesExtended>();

            mockdb.Setup(db => db.Ratings).Returns(Mock.CreateMockSet(ratingData).Object);

            var controller = new RatingsController(mockdb.Object);

            // Act
            var redirect = controller.DeleteConfirmed(1);

            // Assert
            Assert.IsInstanceOf <RedirectToRouteResult>(redirect);
            Assert.AreEqual(((RedirectToRouteResult)redirect).RouteValues["action"], "Index");
            mockSet.Verify(x => x.Remove(It.IsAny <Rating>()), Times.AtMostOnce);
            mockdb.Verify(x => x.SaveChanges());
        }