diff --git a/lab4/main_test.js b/lab4/main_test.js
index e37d21a5..724e68f4 100644
--- a/lab4/main_test.js
+++ b/lab4/main_test.js
@@ -1,22 +1,24 @@
 const puppeteer = require('puppeteer');
 
-(async () => {
-    // Launch the browser and open a new blank page
-    const browser = await puppeteer.launch();
-    const page = await browser.newPage();
+describe('Puppeteer lab test', () => {
+    it('should search for chipi chipi chapa chapa and print the title of the first result in Docs section', async () => {
+        const browser = await puppeteer.launch();
+        const page = await browser.newPage();
+        await page.goto('https://pptr.dev/');
 
-    // Navigate the page to a URL
-    await page.goto('https://pptr.dev/');
+        // 在搜索框中輸入 "chipi chipi chapa chapa"
+        await page.type('input[name="search"]', 'chipi chipi chapa chapa');
 
-    // Hints:
-    // Click search button
-    // Type into search box
-    // Wait for search result
-    // Get the `Docs` result section
-    // Click on first result in `Docs` section
-    // Locate the title
-    // Print the title
+        // 等待搜索結果加載並點擊 Docs 部分的第一個結果
+        await page.waitForSelector('.algolia-docsearch-suggestion--title');
+        const firstResult = await page.$('.algolia-docsearch-suggestion--title');
+        await firstResult.click();
 
-    // Close the browser
-    await browser.close();
-})();
\ No newline at end of file
+        // 等待頁面加載並打印標題
+        await page.waitForSelector('h1');
+        const title = await page.$eval('h1', element => element.textContent);
+        console.log('Title:', title);
+
+        await browser.close();
+    });
+});