public void TestFindAllSectionsWithoutRoom()
{
sectionRepository.Add(section);
int initValue = sectionRepository.FindAllSectionsWithoutRoom().Count;
sectionRepository.Add(newSection);
Assert.AreEqual((initValue + 1), sectionRepository.FindAllSectionsWithoutRoom().Count);
sectionRepository.Delete(section);
sectionRepository.Delete(newSection);
}