Testing

vitest.config.ts

@@ -0,0 +1,34 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    // Use happy-dom for browser API simulation
+    environment: 'happy-dom',
+    
+    // Include source files for coverage
+    include: ['src/**/*.{test,spec}.{js,ts}'],
+    
+    // Coverage configuration
+    coverage: {
+      provider: 'v8',
+      reporter: ['text', 'json', 'html'],
+      include: ['src/**/*.ts'],
+      exclude: [
+        'src/**/*.{test,spec}.ts',
+        'src/types/**',
+        'src/scripts/**',
+        'src/styles/**'
+      ]
+    },
+    
+    // Global setup files
+    setupFiles: ['src/test/setup.ts'],
+    
+    // Mock Cloudflare Workers runtime
+    globals: true,
+    
+    // Timeouts
+    testTimeout: 10000,
+    hookTimeout: 10000
+  }
+});