diff --git a/lab1/main_test.js b/lab1/main_test.js
index 74a716b4..fedf0078 100644
--- a/lab1/main_test.js
+++ b/lab1/main_test.js
@@ -4,20 +4,51 @@ const { MyClass, Student } = require('./main');
 
 test("Test MyClass's addStudent", () => {
     // TODO
-    throw new Error("Test not implemented");
+    const myClass = new MyClass();
+    const student = new Student();
+    student.setName('Alex');
+
+    assert.strictEqual(myClass.addStudent(student), 0);
+    assert.strictEqual(myClass.students.length, 1);
+    assert.strictEqual(myClass.students[0], student);
+    // throw new Error("Test not implemented");
 });
 
 test("Test MyClass's getStudentById", () => {
     // TODO
-    throw new Error("Test not implemented");
+    const myClass = new MyClass();
+    const student1 = new Student();
+    student1.setName("Alex");
+    const student2 = new Student();
+    student2.setName("Albert");
+    myClass.addStudent(student1);
+    myClass.addStudent(student2);
+
+    const retrieved_student1 = myClass.getStudentById(0);
+    const retrieved_student2 = myClass.getStudentById(1);
+    assert.strictEqual(retrieved_student1.getName(), "Alex");
+    assert.strictEqual(retrieved_student2.getName(), "Albert");
+    // throw new Error("Test not implemented");
 });
 
 test("Test Student's setName", () => {
     // TODO
-    throw new Error("Test not implemented");
+    const student = new Student();
+
+    student.setName("Alex");
+
+    assert.strictEqual(student.getName(), "Alex");
+    // throw new Error("Test not implemented");
 });
 
 test("Test Student's getName", () => {
     // TODO
-    throw new Error("Test not implemented");
+    const student = new Student();
+
+    student.setName("Alex");
+
+    const name = student.getName();
+
+    assert.strictEqual(name, "Alex");
+    // throw new Error("Test not implemented");
 });
\ No newline at end of file