feat: class join req controller + fixes tests

frontend/tests/controllers/student.test.ts

@@ -0,0 +1,41 @@
+import { describe, it, expect, beforeAll } from 'vitest';
+import {getStudentController} from "../../src/controllers/controllers";
+
+const controller = getStudentController();
+
+describe('StudentController', () => {
+    const newStudent = {
+        username: 'TestStudent',
+        firstName: 'Testy',
+        lastName: 'McTestface',
+    };
+
+    beforeAll(() => {
+        // Zet eventueel mock server op hier als je dat gebruikt
+    });
+
+    it('creates a student and fetches it by username', async () => {
+        // Create student
+        const created = await controller.createStudent(newStudent);
+
+        expect(created).toBeDefined();
+        expect(created.username).toBe(newStudent.username);
+
+
+        // Fetch same student
+        const fetched = await controller.getByUsername(newStudent.username);
+
+        expect(fetched).toBeDefined();
+        expect(fetched.student).toBeDefined();
+
+        const student = fetched.student;
+        expect(student.username).toBe(newStudent.username);
+        expect(student.firstName).toBe(newStudent.firstName);
+        expect(student.lastName).toBe(newStudent.lastName);
+
+        await controller.deleteStudent(newStudent.username);
+
+        await expect(controller.getByUsername(newStudent.username)).rejects.toThrow();
+
+    });
+});