public async Task AddCommentAsyncShouldReturnTheComment()
        {
            var comment = new Comments()
            {
                Id = 5, Comment = "shrimp heaven now"
            };

            databaseMock.Setup(db => db.AddCommentAsync(It.IsAny <Comments>())).Returns(Task.FromResult <Comments>(comment));
            var newMusicBL = new UploadedMusicBL(databaseMock.Object);

            var result = await newMusicBL.AddCommentAsync(comment);

            Assert.NotNull(result);
            Assert.Equal("shrimp heaven now", result.Comment);
            databaseMock.Verify(db => db.AddCommentAsync(It.IsAny <Comments>()));
        }