diff --git a/backend/tests/test_assets/classes/teacher-invitations.testdata.ts b/backend/tests/test_assets/classes/teacher-invitations.testdata.ts
index 6337a513..ecc30dbd 100644
--- a/backend/tests/test_assets/classes/teacher-invitations.testdata.ts
+++ b/backend/tests/test_assets/classes/teacher-invitations.testdata.ts
@@ -3,35 +3,58 @@ import { TeacherInvitation } from '../../../src/entities/classes/teacher-invitat
 import { Teacher } from '../../../src/entities/users/teacher.entity';
 import { Class } from '../../../src/entities/classes/class.entity';
 import { ClassStatus } from '@dwengo-1/common/util/class-join-request';
+import { getFooFighters, getLimpBizkit, getStaind } from '../users/teachers.testdata';
+import { getClass01, getClass02, getClass03 } from './classes.testdata';
 
 export function makeTestTeacherInvitations(em: EntityManager, teachers: Teacher[], classes: Class[]): TeacherInvitation[] {
-    const teacherInvitation01 = em.create(TeacherInvitation, {
-        sender: teachers[1],
-        receiver: teachers[0],
-        class: classes[1],
+    teacherInvitation01 = em.create(TeacherInvitation, {
+        sender: getLimpBizkit(),
+        receiver: getFooFighters(),
+        class: getClass02(),
         status: ClassStatus.Open,
     });
 
-    const teacherInvitation02 = em.create(TeacherInvitation, {
-        sender: teachers[1],
-        receiver: teachers[2],
-        class: classes[1],
+    teacherInvitation02 = em.create(TeacherInvitation, {
+        sender: getLimpBizkit(),
+        receiver: getStaind(),
+        class: getClass02(),
         status: ClassStatus.Open,
     });
 
-    const teacherInvitation03 = em.create(TeacherInvitation, {
-        sender: teachers[2],
-        receiver: teachers[0],
-        class: classes[2],
+    teacherInvitation03 = em.create(TeacherInvitation, {
+        sender: getStaind(),
+        receiver: getFooFighters(),
+        class: getClass03(),
         status: ClassStatus.Open,
     });
 
-    const teacherInvitation04 = em.create(TeacherInvitation, {
-        sender: teachers[0],
-        receiver: teachers[1],
-        class: classes[0],
+    teacherInvitation04 = em.create(TeacherInvitation, {
+        sender: getFooFighters(),
+        receiver: getLimpBizkit(),
+        class: getClass01(),
         status: ClassStatus.Open,
     });
 
     return [teacherInvitation01, teacherInvitation02, teacherInvitation03, teacherInvitation04];
 }
+
+let teacherInvitation01: TeacherInvitation;
+let teacherInvitation02: TeacherInvitation;
+let teacherInvitation03: TeacherInvitation;
+let teacherInvitation04: TeacherInvitation;
+
+export function getTeacherInvitation01(): TeacherInvitation {
+    return teacherInvitation01;
+}
+
+export function getTeacherInvitation02(): TeacherInvitation {
+    return teacherInvitation02;
+}
+
+export function getTeacherInvitation03(): TeacherInvitation {
+    return teacherInvitation03;
+}
+
+export function getTeacherInvitation04(): TeacherInvitation {
+    return teacherInvitation04;
+}
\ No newline at end of file