refactor(electron): fix vitest and add behavior test (#4655)

packages/frontend/electron/vitest.config.ts

@@ -4,24 +4,17 @@ import { fileURLToPath } from 'node:url';
 import { defineConfig } from 'vitest/config';
 
 const rootDir = fileURLToPath(new URL('../../..', import.meta.url));
-const pluginOutputDir = resolve(
-  rootDir,
-  './packages/frontend/electron/dist/plugins'
-);
 
 export default defineConfig({
   resolve: {
     alias: {
       // prevent tests using two different sources of yjs
       yjs: resolve(rootDir, 'node_modules/yjs'),
+      '@affine/electron': resolve(rootDir, 'packages/frontend/electron/src'),
     },
   },
-  define: {
-    'process.env.PLUGIN_DIR': JSON.stringify(pluginOutputDir),
-  },
   test: {
-    include: ['./src/**/*.spec.ts'],
-    exclude: ['**/node_modules', '**/dist', '**/build', '**/out'],
+    include: ['./test/**/*.spec.ts'],
     testTimeout: 5000,
     singleThread: true,
     threads: false,