diff --git a/backend/src/entities/classes/class.entity.ts b/backend/src/entities/classes/class.entity.ts
index e5a04711..5bedf560 100644
--- a/backend/src/entities/classes/class.entity.ts
+++ b/backend/src/entities/classes/class.entity.ts
@@ -2,11 +2,10 @@ import { Collection, Entity, ManyToMany, PrimaryKey, Property } from '@mikro-orm
 import { Teacher } from '../users/teacher.entity.js';
 import { Student } from '../users/student.entity.js';
 import { ClassRepository } from '../../data/classes/class-repository.js';
-import { customAlphabet } from "nanoid";
+import { customAlphabet } from 'nanoid';
 
 const generateClassId = customAlphabet('ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789', 6);
 
-
 @Entity({
     repository: () => ClassRepository,
 })
diff --git a/backend/tests/controllers/classes.test.ts b/backend/tests/controllers/classes.test.ts
index 3c435bae..0ad0f854 100644
--- a/backend/tests/controllers/classes.test.ts
+++ b/backend/tests/controllers/classes.test.ts
@@ -1,7 +1,7 @@
 import { setupTestApp } from '../setup-tests.js';
 import { describe, it, expect, beforeAll, beforeEach, vi, Mock } from 'vitest';
 import { Request, Response } from 'express';
-import {createClassHandler, deleteClassHandler} from "../../src/controllers/classes";
+import { createClassHandler, deleteClassHandler } from '../../src/controllers/classes';
 
 describe('Class controllers', () => {
     let req: Partial<Request>;
@@ -44,6 +44,4 @@ describe('Class controllers', () => {
 
         expect(jsonMock).toHaveBeenCalledWith(expect.objectContaining({ class: expect.anything() }));
     });
-
-
 });
diff --git a/backend/tests/controllers/students.test.ts b/backend/tests/controllers/students.test.ts
index 794b5db4..dbd22d46 100644
--- a/backend/tests/controllers/students.test.ts
+++ b/backend/tests/controllers/students.test.ts
@@ -21,7 +21,7 @@ import { BadRequestException } from '../../src/exceptions/bad-request-exception.
 import { ConflictException } from '../../src/exceptions/conflict-exception.js';
 import { EntityAlreadyExistsException } from '../../src/exceptions/entity-already-exists-exception.js';
 import { StudentDTO } from '@dwengo-1/common/interfaces/student';
-import {getClass02} from "../test_assets/classes/classes.testdata";
+import { getClass02 } from '../test_assets/classes/classes.testdata';
 
 describe('Student controllers', () => {
     let req: Partial<Request>;
diff --git a/backend/tests/controllers/teacher-invitations.test.ts b/backend/tests/controllers/teacher-invitations.test.ts
index 98675488..675efea1 100644
--- a/backend/tests/controllers/teacher-invitations.test.ts
+++ b/backend/tests/controllers/teacher-invitations.test.ts
@@ -12,7 +12,7 @@ import { TeacherInvitationData } from '@dwengo-1/common/interfaces/teacher-invit
 import { getClassHandler } from '../../src/controllers/classes';
 import { BadRequestException } from '../../src/exceptions/bad-request-exception';
 import { ClassStatus } from '@dwengo-1/common/util/class-join-request';
-import {getClass02} from "../test_assets/classes/classes.testdata";
+import { getClass02 } from '../test_assets/classes/classes.testdata';
 
 describe('Teacher controllers', () => {
     let req: Partial<Request>;
diff --git a/backend/tests/controllers/teachers.test.ts b/backend/tests/controllers/teachers.test.ts
index 8881034c..720365a4 100644
--- a/backend/tests/controllers/teachers.test.ts
+++ b/backend/tests/controllers/teachers.test.ts
@@ -17,7 +17,7 @@ import { EntityAlreadyExistsException } from '../../src/exceptions/entity-alread
 import { getStudentRequestsHandler } from '../../src/controllers/students.js';
 import { TeacherDTO } from '@dwengo-1/common/interfaces/teacher';
 import { getClassHandler } from '../../src/controllers/classes';
-import {getClass02} from "../test_assets/classes/classes.testdata";
+import { getClass02 } from '../test_assets/classes/classes.testdata';
 
 describe('Teacher controllers', () => {
     let req: Partial<Request>;
diff --git a/backend/tests/data/assignments/assignments.test.ts b/backend/tests/data/assignments/assignments.test.ts
index c9ae01db..f5452035 100644
--- a/backend/tests/data/assignments/assignments.test.ts
+++ b/backend/tests/data/assignments/assignments.test.ts
@@ -3,7 +3,7 @@ import { setupTestApp } from '../../setup-tests';
 import { AssignmentRepository } from '../../../src/data/assignments/assignment-repository';
 import { getAssignmentRepository, getClassRepository } from '../../../src/data/repositories';
 import { ClassRepository } from '../../../src/data/classes/class-repository';
-import {getClass02} from "../../test_assets/classes/classes.testdata";
+import { getClass02 } from '../../test_assets/classes/classes.testdata';
 
 describe('AssignmentRepository', () => {
     let assignmentRepository: AssignmentRepository;
diff --git a/backend/tests/data/assignments/groups.test.ts b/backend/tests/data/assignments/groups.test.ts
index 9a82888c..2368085d 100644
--- a/backend/tests/data/assignments/groups.test.ts
+++ b/backend/tests/data/assignments/groups.test.ts
@@ -4,7 +4,7 @@ import { GroupRepository } from '../../../src/data/assignments/group-repository'
 import { getAssignmentRepository, getClassRepository, getGroupRepository } from '../../../src/data/repositories';
 import { AssignmentRepository } from '../../../src/data/assignments/assignment-repository';
 import { ClassRepository } from '../../../src/data/classes/class-repository';
-import {getClass01, getClass02} from "../../test_assets/classes/classes.testdata";
+import { getClass01, getClass02 } from '../../test_assets/classes/classes.testdata';
 
 describe('GroupRepository', () => {
     let groupRepository: GroupRepository;
diff --git a/backend/tests/data/assignments/submissions.test.ts b/backend/tests/data/assignments/submissions.test.ts
index d7add317..77c163d2 100644
--- a/backend/tests/data/assignments/submissions.test.ts
+++ b/backend/tests/data/assignments/submissions.test.ts
@@ -18,7 +18,7 @@ import { Submission } from '../../../src/entities/assignments/submission.entity'
 import { Class } from '../../../src/entities/classes/class.entity';
 import { Assignment } from '../../../src/entities/assignments/assignment.entity';
 import { testLearningObject01 } from '../../test_assets/content/learning-objects.testdata';
-import {getClass01} from "../../test_assets/classes/classes.testdata";
+import { getClass01 } from '../../test_assets/classes/classes.testdata';
 
 describe('SubmissionRepository', () => {
     let submissionRepository: SubmissionRepository;
diff --git a/backend/tests/data/classes/class-join-request.test.ts b/backend/tests/data/classes/class-join-request.test.ts
index 0307b3fc..4e18c116 100644
--- a/backend/tests/data/classes/class-join-request.test.ts
+++ b/backend/tests/data/classes/class-join-request.test.ts
@@ -4,7 +4,7 @@ import { ClassJoinRequestRepository } from '../../../src/data/classes/class-join
 import { getClassJoinRequestRepository, getClassRepository, getStudentRepository } from '../../../src/data/repositories';
 import { StudentRepository } from '../../../src/data/users/student-repository';
 import { ClassRepository } from '../../../src/data/classes/class-repository';
-import {getClass02, getClass03} from "../../test_assets/classes/classes.testdata";
+import { getClass02, getClass03 } from '../../test_assets/classes/classes.testdata';
 
 describe('ClassJoinRequestRepository', () => {
     let classJoinRequestRepository: ClassJoinRequestRepository;
diff --git a/backend/tests/data/classes/classes.test.ts b/backend/tests/data/classes/classes.test.ts
index a346f5e1..6930e5ac 100644
--- a/backend/tests/data/classes/classes.test.ts
+++ b/backend/tests/data/classes/classes.test.ts
@@ -2,7 +2,7 @@ import { beforeAll, describe, expect, it } from 'vitest';
 import { ClassRepository } from '../../../src/data/classes/class-repository';
 import { setupTestApp } from '../../setup-tests';
 import { getClassRepository } from '../../../src/data/repositories';
-import {getClass01, getClass04} from "../../test_assets/classes/classes.testdata";
+import { getClass01, getClass04 } from '../../test_assets/classes/classes.testdata';
 
 describe('ClassRepository', () => {
     let classRepository: ClassRepository;
diff --git a/backend/tests/data/classes/teacher-invitation.test.ts b/backend/tests/data/classes/teacher-invitation.test.ts
index 02daa694..664e41d2 100644
--- a/backend/tests/data/classes/teacher-invitation.test.ts
+++ b/backend/tests/data/classes/teacher-invitation.test.ts
@@ -4,7 +4,7 @@ import { getClassRepository, getTeacherInvitationRepository, getTeacherRepositor
 import { TeacherInvitationRepository } from '../../../src/data/classes/teacher-invitation-repository';
 import { TeacherRepository } from '../../../src/data/users/teacher-repository';
 import { ClassRepository } from '../../../src/data/classes/class-repository';
-import {getClass01, getClass02} from "../../test_assets/classes/classes.testdata";
+import { getClass01, getClass02 } from '../../test_assets/classes/classes.testdata';
 
 describe('ClassRepository', () => {
     let teacherInvitationRepository: TeacherInvitationRepository;
diff --git a/backend/tests/data/questions/questions.test.ts b/backend/tests/data/questions/questions.test.ts
index 803a4a21..950845a6 100644
--- a/backend/tests/data/questions/questions.test.ts
+++ b/backend/tests/data/questions/questions.test.ts
@@ -14,7 +14,7 @@ import { Language } from '@dwengo-1/common/util/language';
 import { Question } from '../../../src/entities/questions/question.entity';
 import { Class } from '../../../src/entities/classes/class.entity';
 import { Assignment } from '../../../src/entities/assignments/assignment.entity';
-import {getClass01} from "../../test_assets/classes/classes.testdata";
+import { getClass01 } from '../../test_assets/classes/classes.testdata';
 
 describe('QuestionRepository', () => {
     let questionRepository: QuestionRepository;
diff --git a/frontend/tests/controllers/assignments-controller.test.ts b/frontend/tests/controllers/assignments-controller.test.ts
index 443b394e..60e5faa3 100644
--- a/frontend/tests/controllers/assignments-controller.test.ts
+++ b/frontend/tests/controllers/assignments-controller.test.ts
@@ -1,6 +1,6 @@
 import { describe, it, expect, beforeEach } from "vitest";
 import { AssignmentController } from "../../src/controllers/assignments";
-import {getClass01} from "@dwengo-1/backend/tests/test_assets/classes/classes.testdata";
+import { getClass01 } from "@dwengo-1/backend/tests/test_assets/classes/classes.testdata";
 
 describe("AssignmentController Tests", () => {
     let controller: AssignmentController;
diff --git a/frontend/tests/controllers/groups.controller.test.ts b/frontend/tests/controllers/groups.controller.test.ts
index 0c87372e..43bfc6b4 100644
--- a/frontend/tests/controllers/groups.controller.test.ts
+++ b/frontend/tests/controllers/groups.controller.test.ts
@@ -1,6 +1,6 @@
 import { describe, expect, it } from "vitest";
 import { GroupController } from "../../src/controllers/groups";
-import {getClass01} from "@dwengo-1/backend/tests/test_assets/classes/classes.testdata";
+import { getClass01 } from "@dwengo-1/backend/tests/test_assets/classes/classes.testdata";
 
 describe("Test controller groups", () => {
     it("Get groups", async () => {
diff --git a/frontend/tests/controllers/submissions-controller.test.ts b/frontend/tests/controllers/submissions-controller.test.ts
index 35a250ac..2153e23a 100644
--- a/frontend/tests/controllers/submissions-controller.test.ts
+++ b/frontend/tests/controllers/submissions-controller.test.ts
@@ -1,7 +1,7 @@
 import { describe, expect, it } from "vitest";
 import { SubmissionController } from "../../src/controllers/submissions";
 import { Language } from "../../src/data-objects/language";
-import {getClass01} from "@dwengo-1/backend/tests/test_assets/classes/classes.testdata";
+import { getClass01 } from "@dwengo-1/backend/tests/test_assets/classes/classes.testdata";
 
 describe("Test controller submissions", () => {
     it("Get submission by number", async () => {