message: Fix UnitController DELETE 403 unit test
diff: @@ -172,12 +172,13 @@ describe(`CodeKataUnit ${BASE_URL}`, () => {
  it('should fail to delete unit for an unauthorized teacher', async () => {
  const unit = await Unit.findOne({__t: 'code-kata'});
  const course = await Course.findById(unit._course);
  + const courseAdmin = await User.findById(course.courseAdmin);
  const unauthorizedTeacher = await FixtureUtils.getUnauthorizedTeacherForCourse(course);
  const res = await testHelper.commonUserDeleteRequest(unauthorizedTeacher, `/${unit.id}`);
  res.status.should.be.equal(403);
  - const res2 = await testHelper.commonUserGetRequest(unauthorizedTeacher, `/${unit.id}`);
  + const res2 = await testHelper.commonUserGetRequest(courseAdmin, `/${unit.id}`);
  res2.status.should.be.equal(200);
  });
  });
  