public async Task ListAsync_WhenSectionsExists_ThenReturnArrayOfSections()
{
Section section1 = new Section {
ID = Guid.NewGuid(), Name = "Section1"
};
Section section2 = new Section {
ID = Guid.NewGuid(), Name = "Section2"
};
sectionRepository.Upsert(section1);
sectionRepository.Upsert(section2);
dbContext.SaveChanges();
Section[] dbSections = await sectionRepository.ListAsync();
AssertSectionEqual(section1, dbSections.First(section => section.ID == section1.ID));
AssertSectionEqual(section1, dbSections.First(section => section.ID == section1.ID));
}