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Assets/Tests/EditMode/StatusEffectTests.cs

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+using NUnit.Framework;
+using BaseGames.Combat.StatusEffects;
+
+namespace BaseGames.Tests.EditMode
+{
+    /// <summary>
+    /// StatusEffect 系统单元测试（EditMode，纯 C# 类，无需 MonoBehaviour）。
+    /// 覆盖：叠加规则、互斥规则、阻断规则、到期检测。
+    /// </summary>
+    [TestFixture]
+    public class StatusEffectTests
+    {
+        // ── 叠加规则 ─────────────────────────────────────────────────────────
+
+        [Test]
+        public void FireEffect_MaxStacks_IsOne()
+        {
+            var effect = new FireEffect();
+            Assert.AreEqual(1, effect.MaxStacks);
+        }
+
+        [Test]
+        public void PoisonEffect_MaxStacks_IsThree()
+        {
+            var effect = new PoisonEffect();
+            Assert.AreEqual(3, effect.MaxStacks);
+        }
+
+        [Test]
+        public void PoisonEffect_OnStack_IncreasesStackCount()
+        {
+            var effect = new PoisonEffect();
+            effect.OnStack();
+            Assert.AreEqual(2, effect.StackCount);
+        }
+
+        [Test]
+        public void PoisonEffect_OnStack_ClampsAtMaxStacks()
+        {
+            var effect = new PoisonEffect();
+            for (int i = 0; i < 10; i++) effect.OnStack();
+            Assert.AreEqual(effect.MaxStacks, effect.StackCount);
+        }
+
+        [Test]
+        public void StaggerEffect_MaxStacks_IsOne()
+        {
+            var effect = new StaggerEffect();
+            Assert.AreEqual(1, effect.MaxStacks);
+        }
+
+        // ── 互斥规则 ─────────────────────────────────────────────────────────
+
+        [Test]
+        public void FireEffect_MutualExclusions_ContainsFreeze()
+        {
+            var effect = new FireEffect();
+            Assert.Contains(StatusEffectType.Freeze, effect.MutualExclusions);
+        }
+
+        [Test]
+        public void PoisonEffect_MutualExclusions_IsEmpty()
+        {
+            var effect = new PoisonEffect();
+            Assert.IsEmpty(effect.MutualExclusions);
+        }
+
+        // ── 阻断规则 ─────────────────────────────────────────────────────────
+
+        [Test]
+        public void StaggerEffect_BlockedBy_ContainsStun()
+        {
+            var effect = new StaggerEffect();
+            Assert.Contains(StatusEffectType.Stun, effect.BlockedBy);
+        }
+
+        [Test]
+        public void FireEffect_BlockedBy_IsEmpty()
+        {
+            var effect = new FireEffect();
+            Assert.IsEmpty(effect.BlockedBy);
+        }
+
+        // ── 到期检测 ─────────────────────────────────────────────────────────
+
+        [Test]
+        public void StatusEffect_IsExpired_AfterDurationDepleted()
+        {
+            var effect = new StaggerEffect(0.5f);
+            effect.OnApply(null);          // Owner 可为 null，测试纯时间逻辑
+
+            effect.Update(0.3f);
+            Assert.IsFalse(effect.IsExpired);
+
+            effect.Update(0.3f);           // 累计 0.6f > 0.5f
+            Assert.IsTrue(effect.IsExpired);
+        }
+
+        [Test]
+        public void FireEffect_OnStack_RefreshDuration()
+        {
+            var effectA = new FireEffect();
+            effectA.OnApply(null);
+            float initialDuration = effectA.Duration;
+
+            effectA.Update(1.0f);          // 消耗部分时间
+            Assert.Less(effectA.Duration, initialDuration);
+
+            effectA.OnStack();             // 重叠施加，应刷新持续时间
+            Assert.AreEqual(initialDuration, effectA.Duration, 0.001f);
+        }
+
+        // ── 类型标识 ─────────────────────────────────────────────────────────
+
+        [Test]
+        public void FireEffect_EffectType_IsFire()
+        {
+            Assert.AreEqual(StatusEffectType.Fire, new FireEffect().EffectType);
+        }
+
+        [Test]
+        public void PoisonEffect_EffectType_IsPoison()
+        {
+            Assert.AreEqual(StatusEffectType.Poison, new PoisonEffect().EffectType);
+        }
+
+        [Test]
+        public void StaggerEffect_EffectType_IsStagger()
+        {
+            Assert.AreEqual(StatusEffectType.Stagger, new StaggerEffect().EffectType);
+        }
+    }
+}