diff --git a/.github/pull_request_template.md b/.github/pull_request_template.md
index 78b908d9..fa079b42 100644
--- a/.github/pull_request_template.md
+++ b/.github/pull_request_template.md
@@ -1,5 +1,8 @@
 ## Description
 
+<!-- You can check sample PR here: (remember delete this link when you create your PR) -->
+<https://github.com/SQLab/112-spring-software-testing/pull/2>
+
 <!-- Please briefly describe your change here -->
 
 ---
@@ -7,9 +10,9 @@
 <!-- Please make sure you're satisfy and fill the following checkboxes -->
 <!-- A good PR should include the following parts: -->
 
-- [ ] A clear title
+- [ ] A clear title (name your pr "[LAB{lab_number}] {your_student_id}")
 - [ ] A meaningful message for PR, as well as its commits
-- [ ] From your specific branch (***not master***) merging to your branch
+- [ ] From your specific branch (***not main or other's branch***) merging to your branch
 - [ ] Excluding any irrelevant files, such as binaries, text files, or dot files
 - [ ] Passing tests/CI
 - [ ] Add proper label for this PR
diff --git a/lab1/README.md b/lab1/README.md
index f205b0b9..779166ca 100644
--- a/lab1/README.md
+++ b/lab1/README.md
@@ -6,8 +6,7 @@ In this lab, you will write unit tests for functions implemented in `main.js`. Y
 
 ## Requirement
 
-1. Write test cases in `main_test.js` and achieve 100% code coverage. (90%)
-2. Add a badge and make it show `passing` in `README.md` in the root folder. (10%)
+1. Write test cases in `main_test.js` and achieve 100% code coverage. (100%)
 
 You can run `validate.sh` in your local to test if you satisfy the requirements.
 
diff --git a/lab1/main_test.js b/lab1/main_test.js
index 74a716b4..af91d5f9 100644
--- a/lab1/main_test.js
+++ b/lab1/main_test.js
@@ -3,21 +3,35 @@ const assert = require('assert');
 const { MyClass, Student } = require('./main');
 
 test("Test MyClass's addStudent", () => {
-    // TODO
-    throw new Error("Test not implemented");
+    const myClass = new MyClass();
+    assert.equal(myClass.addStudent(69), -1);
+    const student = new Student();
+    const name = "John";
+    student.setName(name);
+    myClass.addStudent(student);
 });
 
 test("Test MyClass's getStudentById", () => {
-    // TODO
-    throw new Error("Test not implemented");
+    const myClass = new MyClass();
+    const student = new Student();
+    const name = "John";
+    student.setName(name);
+    const id = myClass.addStudent(student);
+    assert.strictEqual(myClass.getStudentById(-1), null);
+    assert.strictEqual(myClass.getStudentById(50), null);
+    assert.strictEqual(myClass.getStudentById(id), student);
 });
 
 test("Test Student's setName", () => {
-    // TODO
-    throw new Error("Test not implemented");
+    const student = new Student();
+    student.setName(69);
+    student.setName("John");
 });
 
 test("Test Student's getName", () => {
-    // TODO
-    throw new Error("Test not implemented");
+    const student = new Student();
+    const name = "John"
+    assert.equal(student.getName(), '');
+    student.setName(name);
+    assert.strictEqual(student.getName(), name);
 });
\ No newline at end of file