diff --git a/lab1/main_test.js b/lab1/main_test.js
index 74a716b4..02ae5b79 100644
--- a/lab1/main_test.js
+++ b/lab1/main_test.js
@@ -2,22 +2,30 @@ const test = require('node:test');
 const assert = require('assert');
 const { MyClass, Student } = require('./main');
 
+const myClass = new MyClass();
+
 test("Test MyClass's addStudent", () => {
-    // TODO
-    throw new Error("Test not implemented");
+    assert.strictEqual(myClass.addStudent(null), -1);
+    assert.strictEqual(myClass.addStudent(new Student()), 0);
 });
 
 test("Test MyClass's getStudentById", () => {
-    // TODO
-    throw new Error("Test not implemented");
+    assert.strictEqual(myClass.getStudentById(0) instanceof Student, true);
+    assert.strictEqual(myClass.getStudentById(1), null);
 });
 
 test("Test Student's setName", () => {
-    // TODO
-    throw new Error("Test not implemented");
+    const student = myClass.getStudentById(0);
+    student.setName('John');
+    assert.strictEqual(student.getName(), 'John');
+
+    student.setName(null);
+    assert.strictEqual(student.getName(), 'John');
 });
 
 test("Test Student's getName", () => {
-    // TODO
-    throw new Error("Test not implemented");
+    const student = new Student();
+    const name = student.getName();
+
+    assert.strictEqual(name, '');
 });
\ No newline at end of file