diff --git a/lab1/main_test.js b/lab1/main_test.js
index 74a716b4..23eac216 100644
--- a/lab1/main_test.js
+++ b/lab1/main_test.js
@@ -2,22 +2,49 @@ const test = require('node:test');
 const assert = require('assert');
 const { MyClass, Student } = require('./main');
 
-test("Test MyClass's addStudent", () => {
-    // TODO
-    throw new Error("Test not implemented");
+// 測試 MyClass 的 addStudent 方法
+test("Test MyClass's addStudent", async (t) => {
+    const myClass = new MyClass();
+    const student = new Student();
+    student.setName("John Doe");
+    
+    const addedStudentId = myClass.addStudent(student);
+    assert.strictEqual(addedStudentId, 0, "應該將學生加入並返回正確的索引");
+    
+    const nonStudent = {}; // 模擬非 Student 實例
+    const nonStudentId = myClass.addStudent(nonStudent);
+    assert.strictEqual(nonStudentId, -1, "非 Student 實例不應該被添加");
 });
 
-test("Test MyClass's getStudentById", () => {
-    // TODO
-    throw new Error("Test not implemented");
+// 測試 MyClass 的 getStudentById 方法
+test("Test MyClass's getStudentById", async (t) => {
+    const myClass = new MyClass();
+    const student = new Student();
+    student.setName("Jane Doe");
+    myClass.addStudent(student);
+
+    const retrievedStudent = myClass.getStudentById(0);
+    assert.strictEqual(retrievedStudent.getName(), "Jane Doe", "應該返回正確的學生名稱");
+
+    const invalidStudent = myClass.getStudentById(-1);
+    assert.strictEqual(invalidStudent, null, "無效索引應該返回 null");
 });
 
-test("Test Student's setName", () => {
-    // TODO
-    throw new Error("Test not implemented");
+// 測試 Student 的 setName 方法
+test("Test Student's setName", async (t) => {
+    const student = new Student();
+    student.setName("John Smith");
+    assert.strictEqual(student.name, "John Smith", "setName 應該正確設置學生名稱");
+
+    student.setName(123); // 嘗試用非字符串設置名稱
+    assert.notStrictEqual(student.name, 123, "setName 應該忽略非字符串值");
 });
 
-test("Test Student's getName", () => {
-    // TODO
-    throw new Error("Test not implemented");
-});
\ No newline at end of file
+// 測試 Student 的 getName 方法
+test("Test Student's getName", async (t) => {
+    const student = new Student();
+    assert.strictEqual(student.getName(), '', "未設置名稱時應返回空字符串");
+
+    student.setName("Doe Jane");
+    assert.strictEqual(student.getName(), "Doe Jane", "getName 應返回設置的學生名稱");
+});