UI相关优化补充

Assets/Tests/PlayMode/UITweenTests.cs

@@ -0,0 +1,60 @@
+using System.Collections;
+using NUnit.Framework;
+using UnityEngine;
+using UnityEngine.UI;
+using UnityEngine.TestTools;
+using BaseGames.UI;
+
+namespace BaseGames.Tests.PlayMode
+{
+    /// <summary>
+    /// UITween 静态库测试：验证补间在终态吸附、零时长立即返回、null 安全。
+    /// </summary>
+    public class UITweenTests
+    {
+        private GameObject _go;
+
+        [SetUp]    public void SetUp()    { _go = new GameObject("TweenHost", typeof(RectTransform), typeof(CanvasGroup)); }
+        [TearDown] public void TearDown() { Object.DestroyImmediate(_go); }
+
+        [UnityTest]
+        public IEnumerator MoveAnchored_ReachesTarget()
+        {
+            var rect = _go.GetComponent<RectTransform>();
+            rect.anchoredPosition = Vector2.zero;
+            yield return _go.AddComponent<TestRunner>().Run(UITween.MoveAnchored(rect, new Vector2(100, 50), 0.05f));
+            Assert.AreEqual(new Vector2(100, 50), rect.anchoredPosition);
+        }
+
+        [UnityTest]
+        public IEnumerator FadeCanvasGroup_ReachesTarget()
+        {
+            var cg = _go.GetComponent<CanvasGroup>();
+            cg.alpha = 0f;
+            yield return _go.AddComponent<TestRunner>().Run(UITween.FadeCanvasGroup(cg, 1f, 0.05f));
+            Assert.AreEqual(1f, cg.alpha, 0.001f);
+        }
+
+        [UnityTest]
+        public IEnumerator ZeroDuration_SnapsImmediately()
+        {
+            var rect = _go.GetComponent<RectTransform>();
+            yield return _go.AddComponent<TestRunner>().Run(UITween.MoveAnchored(rect, new Vector2(7, 7), 0f));
+            Assert.AreEqual(new Vector2(7, 7), rect.anchoredPosition);
+        }
+
+        [UnityTest]
+        public IEnumerator NullTarget_NoException()
+        {
+            yield return _go.AddComponent<TestRunner>().Run(UITween.MoveAnchored(null, Vector2.one, 0.05f));
+            yield return _go.AddComponent<TestRunner>().Run(UITween.FadeCanvasGroup(null, 1f, 0.05f));
+            Assert.Pass();
+        }
+
+        /// <summary>挂宿主跑协程的辅助 MonoBehaviour（测试场景无 EventSystem）。</summary>
+        private class TestRunner : MonoBehaviour
+        {
+            public IEnumerator Run(IEnumerator inner) { yield return StartCoroutine(inner); }
+        }
+    }
+}