Fix failing tests in main.js

Author: as10748569

lab1/main_test.js

@@ -3,39 +3,60 @@ const assert = require('assert');
 const { MyClass, Student } = require('./main');
 
 test("Test MyClass's addStudent", () => {
-    // TODO
-	const myClass = new MyClass();
-	const student = new Student("John");
-	myClass.addStudent(student);
-	assert.strictEqual(myClass.students.length, 1); 
-	assert.strictEqual(myClass.students[0], student); 
-    //throw new Error("Test not implemented");
+    const myClass = new MyClass();
+    const student = new Student();
+    
+    // Test adding a student
+    myClass.addStudent(student);
+    assert.strictEqual(myClass.students.length, 1);
+    assert.strictEqual(myClass.students[0], student);
+    
+    // Test adding multiple students
+    const student2 = new Student();
+    const student3 = new Student();
+    myClass.addStudent(student2);
+    myClass.addStudent(student3);
+    assert.strictEqual(myClass.students.length, 3);
 });
 
 test("Test MyClass's getStudentById", () => {
-    // TODO
-	const myClass = new MyClass();
-	const student1 = new Student("John");
-	const student2 = new Student("Jane");
-	const student3 = new Student("Doe");
-	myClass.addStudent(student1);
-	myClass.addStudent(student2);
-	myClass.addStudent(student3);
-	const foundStudent = myClass.getStudentById(student2.id);
-	assert.strictEqual(foundStudent, student2); 
-    //throw new Error("Test not implemented");
+    const myClass = new MyClass();
+    const student1 = new Student();
+    const student2 = new Student();
+    const student3 = new Student();
+    myClass.addStudent(student1);
+    myClass.addStudent(student2);
+    myClass.addStudent(student3);
+    
+    // Test getting a student by ID
+    const foundStudent = myClass.getStudentById(1);
+    assert.strictEqual(foundStudent, student2);
+    
+    // Test getting a non-existing student by ID
+    const nonExistingStudent = myClass.getStudentById(5);
+    assert.strictEqual(nonExistingStudent, null);
 });
 
 test("Test Student's setName", () => {
-    // TODO
-	const student = new Student("John");
-	student.setName("Smith");
-	assert.strictEqual(student.getName(), "Smith");
+    const student = new Student();
+    
+    // Test setting a valid name
+    student.setName("John");
+    assert.strictEqual(student.getName(), "John");
+    
+    // Test setting an invalid name
+    student.setName(123); // Passing a number instead of a string
+    assert.strictEqual(student.getName(), ""); // Name should remain unchanged
 });
 
 test("Test Student's getName", () => {
-    // TODO
-	const student = new Student("John");
-	assert.strictEqual(student.getName(), "John"); 
-    //throw new Error("Test not implemented");
+    const student = new Student();
+    
+    // Test getting name when name is set
+    student.setName("John");
+    assert.strictEqual(student.getName(), "John");
+    
+    // Test getting name when name is not set
+    assert.strictEqual(student.getName(), ""); // Should return an empty string
 });
+