更新客户端渲染，更新了壳

参考/wpfui-main/tests/Wpf.Ui.UnitTests/Animations/TransitionAnimationProviderTests.cs

@@ -0,0 +1,29 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using Wpf.Ui.Animations;
+
+namespace Wpf.Ui.UnitTests.Animations;
+
+public class TransitionAnimationProviderTests
+{
+    [Fact]
+    public void ApplyTransition_ReturnsFalse_WhenDurationIsLessThan10()
+    {
+        UIElement mockedUiElement = Substitute.For<UIElement>();
+
+        var result = TransitionAnimationProvider.ApplyTransition(mockedUiElement, Transition.FadeIn, -10);
+
+        Assert.False(result);
+    }
+
+    [Fact]
+    public void ApplyTransition_ReturnsFalse_WhenElementIsNull()
+    {
+        var result = TransitionAnimationProvider.ApplyTransition(null, Transition.FadeIn, 1000);
+
+        Assert.False(result);
+    }
+}