public void GetAllBookReviews_ValidId()
        {
            // Arrange:
            var bookId = 5;
            // Act:
            var reviews = _reviewService.GetAllBookReviews(bookId);

            // Assert:
            Assert.IsTrue(reviews.Count() == 2);
            Assert.AreEqual(reviews.First().BookReviewId, 6);
            Assert.AreEqual(reviews.First().UserName, "7firrst 7last");
            Assert.AreEqual(reviews.First().DateOfReview, new DateTime(1916, 10, 2));
            Assert.AreEqual(reviews.First().Rating, 3);
            Assert.AreEqual(reviews.First().Review, "glu");
        }