diff --git a/lab3/main_test.js b/lab3/main_test.js
index 096fd421..3b22f558 100644
--- a/lab3/main_test.js
+++ b/lab3/main_test.js
@@ -3,3 +3,50 @@ const assert = require('assert');
 const { Calculator } = require('./main');
 
 // TODO: write your tests here
+
+describe('Calculator', () => {
+    
+    describe('exp', () => {
+        // 檢查 exp 方法在輸入 0、1 和 -1 時。
+        it('Calculate correctly', () => {
+            const calculator = new Calculator();     
+            assert.strictEqual(calculator.exp(0), 1);
+            assert.strictEqual(calculator.exp(1), Math.exp(1));
+            assert.strictEqual(calculator.exp(-1), 1 / Math.exp(1));
+        });
+        // 檢查 exp 方法在Infinity(-) 時。
+        it('Calculate error', () => {
+            const calculator = new Calculator();
+            assert.throws(() => calculator.exp(NaN), Error);
+            assert.throws(() => calculator.exp(Infinity), Error);
+            assert.throws(() => calculator.exp(-Infinity), Error);
+        });
+        // 檢查 exp 方法在 overflow 時。
+        it('overflows', () => {
+            const calculator = new Calculator();
+            assert.throws(() => calculator.exp(9999), Error);
+        });
+    });
+
+    describe('log', () => {
+        // 檢查 log 方法在輸入 1 和 Math.E 時
+        it('calculate orrectly', () => {
+            const calculator = new Calculator();
+            assert.strictEqual(calculator.log(1), 0);
+            assert.strictEqual(calculator.log(Math.E), 1);
+        });
+        //檢查 log 方法在輸入 NaN、Infinity時
+        it('Calculate error', () => {
+            const calculator = new Calculator();
+            assert.throws(() => calculator.log(NaN), Error);
+            assert.throws(() => calculator.log(Infinity), Error);
+            assert.throws(() => calculator.log(-Infinity), Error);
+        });
+        // 檢查 log 方法在輸入 0 和 -1 時
+        it('negative infinity or NaN', () => {
+            const calculator = new Calculator();
+            assert.throws(() => calculator.log(0), Error);
+            assert.throws(() => calculator.log(-1), Error);
+        });
+    });
+});
diff --git a/lab4/main_test.js b/lab4/main_test.js
index e37d21a5..491f0b83 100644
--- a/lab4/main_test.js
+++ b/lab4/main_test.js
@@ -1,22 +1,43 @@
 const puppeteer = require('puppeteer');
 
 (async () => {
-    // Launch the browser and open a new blank page
+    // 啟動瀏覽器並打開一個新的空白頁面
     const browser = await puppeteer.launch();
     const page = await browser.newPage();
+    try{
+        // 導航至指定網址
+        await page.goto('https://pptr.dev/');
+        
 
-    // Navigate the page to a URL
-    await page.goto('https://pptr.dev/');
+        // 點擊搜尋按鈕
+        await page.click('button.DocSearch.DocSearch-Button');
+       
 
-    // 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
+        // 在搜尋框中輸入文字
+        await page.waitForSelector('#docsearch-input');
+        await page.type('#docsearch-input', 'chipi chipi chapa chapa', { delay: 1000 });
+       
 
-    // Close the browser
-    await browser.close();
-})();
\ No newline at end of file
+        // 等待搜尋結果
+        await page.waitForSelector('#docsearch-item-5');
+        
+
+        // 點擊「Docs」部分的第一個結果
+        await page.click('#docsearch-item-5');
+       
+
+        // 定位標題
+        await page.waitForSelector('h1');
+
+        // 獲取標題元素的文字內容
+        const title = await page.evaluate(() => {
+            const titleElement = document.querySelector('h1');
+            return titleElement.textContent;
+        });
+        console.log(title);
+    }catch(error){
+        console.error('An error occurred:', error);
+    }finally{
+        // 最後都會關閉瀏覽器
+        await browser.close();}
+})();
diff --git a/lab7/sol.py b/lab7/sol.py
index e69de29b..18083edf 100644
--- a/lab7/sol.py
+++ b/lab7/sol.py
@@ -0,0 +1,14 @@
+import angr, sys
+
+def success_condition(state):
+    return  b"Login successful" in state.posix.dumps(sys.stdout.fileno())
+def fail_condition(state):
+    return b"Login failed" in state.posix.dumps(sys.stdout.fileno())
+  
+proj = angr.Project('./login')
+init_state = proj.factory.entry_state()
+simulation = proj.factory.simgr(init_state)
+simulation.explore(find = success_condition, avoid = fail_condition)
+solution = simulation.found[0]
+
+print(solution.posix.dumps(sys.stdin.fileno()))