test: student repository is getest

backend/package.json

@@ -11,13 +11,15 @@
         "format": "prettier --write src/",
         "format-check": "prettier --check src/",
         "lint": "eslint . --fix",
+        "test": "vitest",
         "test:unit": "vitest"
     },
     "dependencies": {
-        "@mikro-orm/core": "^6.4.6",
+        "@mikro-orm/core": "^6.4.9",
+        "@mikro-orm/knex": "^6.4.9",
         "@mikro-orm/postgresql": "^6.4.6",
         "@mikro-orm/reflection": "^6.4.6",
-        "@mikro-orm/sqlite": "6.4.6",
+        "@mikro-orm/sqlite": "^6.4.9",
         "@types/js-yaml": "^4.0.9",
         "axios": "^1.8.1",
         "dotenv": "^16.4.7",

backend/tests/data/students.test.ts

@@ -15,6 +15,20 @@ describe('StudentRepository', () => {
         studentRepository = getStudentRepository();
     });
 
+    it('should not return a student because username does not exist', async() => {
+        const student = await studentRepository.findByUsername('test');
+
+        expect(student).toBeNull();
+    });
+
+    it('should return student from the datbase', async() => {
+        const student = await studentRepository.findByUsername('DireStraits');
+
+        expect(student).toBeTruthy();
+        expect(student?.firstName).toBe('Mark');
+        expect(student?.lastName).toBe('Knopfler');
+    })
+
     it('should return the queried student after he was added', async () => {
         await studentRepository.insert(
             new Student(username, firstName, lastName)

backend/tests/setup-tests.ts

@@ -1,7 +1,16 @@
-import { initORM } from '../src/orm.js';
+import { Student } from '../src/entities/users/student.entity.js';
+import { forkEntityManager, initORM } from '../src/orm.js';
 import dotenv from 'dotenv';
 
 export async function setupTestApp() {
     dotenv.config({ path: '.env.test' });
     await initORM(true);
+
+    const em = forkEntityManager();
+
+    const user01 = em.create(Student, {username: 'Noordkaap', firstName: 'Stijn', lastName: 'Meuris'})
+    const user02 = em.create(Student, {username: 'DireStraits', firstName: 'Mark', lastName: 'Knopfler'})
+    const user03 = em.create(Student, {username: 'SmashingPumpkins', firstName: 'Billy', lastName: 'Corgan'})
+
+    await em.persistAndFlush([user01, user02, user03]);
 }