public void TestTweener_Finish()
        {
            var tweener = new AltoTweener();

            object obj1   = new System.Object();
            object obj2   = new System.Object();
            float  value1 = 0;
            float  value2 = 0;
            float  value3 = 0;

            tweener.Go(obj1, 10f, -10f, 1.0f, AltoEase.Linear, x => value1 = x);
            tweener.Go(obj2, 30f, 40f, 1.0f, AltoEase.Linear, x => value2  = x);
            tweener.Go(obj2, 20f, 100f, 1.0f, AltoEase.Linear, x => value3 = x);

            Assert.That(tweener.count, Is.EqualTo(2));
            Assert.That(value1, Is.EqualTo(10f));
            Assert.That(value2, Is.EqualTo(30f));
            Assert.That(value3, Is.EqualTo(20f));

            tweener.Update(0.5f);
            Assert.That(value1, Is.EqualTo(0f));
            Assert.That(value2, Is.EqualTo(35f));
            Assert.That(value3, Is.EqualTo(60f));

            tweener.Finish(obj2);
            Assert.That(tweener.count, Is.EqualTo(1));
            Assert.That(value1, Is.EqualTo(0f));
            Assert.That(value2, Is.EqualTo(40f));
            Assert.That(value3, Is.EqualTo(100f));

            tweener.Update(0.5f);
            Assert.That(value1, Is.EqualTo(-10f));
            Assert.That(value2, Is.EqualTo(40f));
            Assert.That(value3, Is.EqualTo(100f));
        }
        public void TestTweener_FinishNull()
        {
            var tweener = new AltoTweener();

            object obj    = new System.Object();
            float  value1 = 0;
            float  value2 = 0;
            float  value3 = 0;

            tweener.Go(obj, 1f, 2f, 1.0f, AltoEase.Linear, x => value1  = x);
            tweener.Go(null, 3f, 4f, 1.0f, AltoEase.Linear, x => value2 = x);
            tweener.Go(null, 5f, 6f, 1.0f, AltoEase.Linear, x => value3 = x);

            Assert.That(tweener.count, Is.EqualTo(2));
            Assert.That(value1, Is.EqualTo(1f));
            Assert.That(value2, Is.EqualTo(3f));
            Assert.That(value3, Is.EqualTo(5f));

            tweener.Finish(null);
            Assert.That(tweener.count, Is.EqualTo(1));
            Assert.That(value1, Is.EqualTo(1f));
            Assert.That(value2, Is.EqualTo(4f));
            Assert.That(value3, Is.EqualTo(6f));
        }