public void TestAdd()
        {
            LikesTracker likesTracker = new LikesTracker();

            Assert.Equal(0, likesTracker.Likes);
            likesTracker.Add();
            Assert.Equal(1, likesTracker.Likes);
        }
        public void TestUnlike()
        {
            LikesTracker likesTracker = new LikesTracker();

            Assert.Equal(0, likesTracker.Likes);
            likesTracker.Add();
            likesTracker.Remove();
            Assert.Equal(0, likesTracker.Likes);
        }
        public void TestConstructor()
        {
            LikesTracker likesTracker = new LikesTracker();

            Assert.Equal(0, likesTracker.Likes);
        }