public void TestFindAllSectionsWithoutLeader()
        {
            section.SectionLeader = new User();
            sectionRepository.Add(section);
            int initValue = sectionRepository.FindAllSectionsWithoutLeader().Count;

            userRepository.Add(user);
            newSection.SectionLeader = user;
            sectionRepository.Add(newSection);
            Assert.AreEqual(initValue, sectionRepository.FindAllSectionsWithoutLeader().Count);
            sectionRepository.Delete(section);
            sectionRepository.Delete(newSection);
            userRepository.Delete(user);
        }