public void Reviews_GetReviewsForUser_UserDoesNotExist()
        {
            // Arrange
            var repo   = new ReviewsRepository(context);
            int userId = (context.Users.OrderByDescending(b => b.Id).FirstOrDefault()).Id;

            // Act
            var reviews = repo.GetReviewsForUser(userId + 1);

            // Assert
            Assert.Fail("Should have thrown NotFoundException");
        }
        public void Reviews_GetReviewsForUser_UserExists()
        {
            // Arrange
            var repo   = new ReviewsRepository(context);
            int userId = (context.Users.OrderByDescending(b => b.Id).FirstOrDefault()).Id;

            // Act
            var reviews = repo.GetReviewsForUser(userId);

            // Assert
            Assert.AreEqual(1, reviews.Count());
            Assert.AreEqual("I really liked it", reviews.ElementAt(0).ReviewText);
            Assert.AreEqual(5, reviews.ElementAt(0).Stars);
        }