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code/g3soft-libs/packages/ui/tests/setup.ts

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+/**
+ * 单测环境补丁 —— happy-dom 缺少组件依赖的若干浏览器 API。
+ *
+ * happy-dom 没有真实布局引擎，所以：
+ * - 依赖实测尺寸的逻辑（浮层定位、Splitter 拖拽）拿不到有效值，那类行为放到 E2E（Playwright）里验；
+ * - 这里只补「不补就会抛错」的 API，让组件能正常挂载与交互。
+ */
+
+class ResizeObserverStub {
+  observe(): void {}
+  unobserve(): void {}
+  disconnect(): void {}
+}
+
+if (!('ResizeObserver' in globalThis)) {
+  ;(globalThis as unknown as Record<string, unknown>).ResizeObserver = ResizeObserverStub
+}
+
+if (typeof window !== 'undefined') {
+  if (!window.matchMedia) {
+    window.matchMedia = ((query: string) => ({
+      matches: false,
+      media: query,
+      onchange: null,
+      addListener: () => {},
+      removeListener: () => {},
+      addEventListener: () => {},
+      removeEventListener: () => {},
+      dispatchEvent: () => false,
+    })) as unknown as typeof window.matchMedia
+  }
+
+  if (!Element.prototype.scrollIntoView) {
+    Element.prototype.scrollIntoView = () => {}
+  }
+
+  // happy-dom 未实现 PointerEvent 时用 MouseEvent 兜底，保证指针交互的监听能注册
+  if (!('PointerEvent' in window)) {
+    ;(window as unknown as Record<string, unknown>).PointerEvent = MouseEvent
+  }
+}