public void TestSetCurrentAnimStack()
        {
            using (FbxScene newScene = FbxScene.Create(Manager, "")) {
                FbxAnimStack animStack = FbxAnimStack.Create(Manager, "");
                newScene.SetCurrentAnimationStack(animStack);
                Assert.AreEqual(animStack, newScene.GetCurrentAnimationStack());

                // test null
                Assert.That(() => { newScene.SetCurrentAnimationStack(null); }, Throws.Exception.TypeOf <System.ArgumentNullException>());

                // test invalid
                animStack.Destroy();
                Assert.That(() => { newScene.SetCurrentAnimationStack(animStack); }, Throws.Exception.TypeOf <System.ArgumentNullException>());
            }
        }