applying test

src/test-app.js

@@ -0,0 +1,10 @@
+const app = require('./app');
+
+(async () => {
+  try {
+    const categories = await app('www.facebook.com');
+    console.log(categories);
+  } catch (error) {
+    console.error('Error occurred:', error);
+  }
+})();