add testing function

lab1/main_test.js

@@ -4,21 +4,48 @@ const { MyClass, Student } = require('./main');
 
 test("Test MyClass's addStudent", () => {
     //TODO
-    testetest;
+    const myclass = new MyClass();
+    assert.strictEqual(myclass.addStudent(), 0);
+    assert.strictEqual(myclass.addStudent(), 1);
+    assert.strictEqual("Return -1", -1);
     throw new Error("Test not implemented");
 });
 
 test("Test MyClass's getStudentById", () => {
     // TODO
+    const myclass = new MyClass();
+    assert.strictEqual(myclass.getStudentById(-1), null);
+    assert.strictEqual(myclass.getStudentById(myclass.students.length), null);
+
+    const student1 = new Student();
+    student1.setName("std1");
+    myclass.addStudent(student1);
+
+    const student2 = new Student();
+    student2.setName("std2");
+    myclass.addStudent(student2);
+
+    for (i = 0; i < myclass.students.length(); i++) {
+        assert.strictEqual(myclass.getStudentById(i), myclass.students[i]);
+    }
+
     throw new Error("Test not implemented");
 });
 
 test("Test Student's setName", () => {
     // TODO
+    const student = new Student();
+    assert.strictEqual(student.name("std1"), undefined);
+    student.setName("std1");
+    assert.strictEqual(student.name, "std1");
     throw new Error("Test not implemented");
 });
 
 test("Test Student's getName", () => {
     // TODO
+    const student = new Student();
+    assert.strictEqual(student.getName(), '');
+    student.setName("std1");
+    assert.strictEqual(student.getName(), "std1");
     throw new Error("Test not implemented");
 });