sort function in mongo repository test for mongo 4.2 version

Author: alemarcha

tests/Contexts/Backoffice/infrastructure/MongoBackofficeCourseRepository.test.ts

@@ -1,4 +1,5 @@
 import container from '../../../../src/apps/backoffice/backend/config/dependency-injection';
+import { BackofficeCourse } from '../../../../src/Contexts/Backoffice/domain/BackofficeCourse';
 import { MongoBackofficeCourseRepository } from '../../../../src/Contexts/Backoffice/infrastructure/MongoBackofficeCourseRepository';
 import { EnvironmentArranger } from '../../Shared/infrastructure/arranger/EnvironmentArranger';
 import { BackofficeCourseMother } from '../application/domain/BackofficeCourseMother';
@@ -16,14 +17,18 @@ afterAll(async () => {
   await (await environmentArranger).close();
 });
 
+function sort(backofficeCourse1: BackofficeCourse, backofficeCourse2: BackofficeCourse): number {
+  return backofficeCourse1?.id?.value.localeCompare(backofficeCourse2?.id?.value);
+}
+
 describe('Mongo BackofficeCourse Repository', () => {
   it('should return the existing courses', async () => {
     const courses = [BackofficeCourseMother.random(), BackofficeCourseMother.random()];
 
     await Promise.all(courses.map(course => repository.save(course)));
 
     const expectedCourses = await repository.searchAll();
-    expect(courses.sort()).toStrictEqual(expectedCourses.sort());
+    expect(courses.sort(sort)).toStrictEqual(expectedCourses.sort(sort));
   });
 
   it('should save a course', async () => {