feat: (frontend) queries teacher + test controller teacher

frontend/tests/controllers/teacher.test.ts

@@ -0,0 +1,35 @@
+import { describe, it, expect, beforeAll } from 'vitest';
+import {TeacherController} from "../../src/controllers/teachers";
+
+const controller = new TeacherController();
+
+describe('TeacherController', () => {
+    const newTeacher = {
+        username: 'testteacher',
+        firstName: 'Testy',
+        lastName: 'McTestface',
+    };
+
+    beforeAll(() => {
+        // Start backend
+    });
+
+    it('creates a student and fetches it by username', async () => {
+        // Create student
+        await controller.createTeacher(newTeacher);
+
+        // Fetch same student
+        const fetched = await controller.getByUsername(newTeacher.username);
+
+        expect(fetched).toBeDefined();
+        expect(fetched.teacher).toBeDefined();
+
+        const teacher = fetched.teacher;
+        expect(teacher.username).toBe(newTeacher.username);
+        expect(teacher.firstName).toBe(newTeacher.firstName);
+        expect(teacher.lastName).toBe(newTeacher.lastName);
+
+
+        await controller.deleteTeacher(newTeacher.username);
+    });
+});