初始化提交

frontend/vitest.config.ts

@@ -0,0 +1,31 @@
+import { fileURLToPath } from "node:url";
+
+import react from "@vitejs/plugin-react";
+import { defineConfig } from "vitest/config";
+
+/**
+ * Vitest 配置。
+ * - environment=jsdom：支持组件渲染测试；纯函数测试同样兼容。
+ * - globals=true：直接使用 describe/it/expect，无需逐文件 import。
+ * - alias @/* → src/*：与 tsconfig paths 一致。
+ */
+export default defineConfig({
+  plugins: [react()],
+  resolve: {
+    alias: {
+      "@": fileURLToPath(new URL("./src", import.meta.url)),
+    },
+  },
+  test: {
+    environment: "jsdom",
+    globals: true,
+    setupFiles: ["./src/test/setup.ts"],
+    include: ["src/**/*.{test,spec}.{ts,tsx}"],
+    coverage: {
+      provider: "v8",
+      reporter: ["text", "html"],
+      include: ["src/lib/**", "src/components/**"],
+      exclude: ["src/**/*.test.{ts,tsx}", "src/test/**"],
+    },
+  },
+});