public void GetLatestDonations_ShouldReturnAnEmptyListOfDonations_WhenThereAreNoDonations()
{
var donationsRepository = Substitute.For<IDonationRepository>();
donationsRepository.GetAll().Returns(Enumerable.Empty<Donation>());
var donationsService = new DonationsService(donationsRepository);
IEnumerable<Donation> latestDonations = donationsService.GetLatestDonations(1);
CollectionAssert.AreEqual(Enumerable.Empty<Donation>(), latestDonations);
}
public void GetLatestDonations_ShouldReturnAnEmptyListOfDonations_WhenThereAreNoDonations()
{
var donationsRepository = Substitute.For <IDonationRepository>();
donationsRepository.GetAll().Returns(Enumerable.Empty <Donation>());
var donationsService = new DonationsService(donationsRepository);
IEnumerable <Donation> latestDonations = donationsService.GetLatestDonations(1);
CollectionAssert.AreEqual(Enumerable.Empty <Donation>(), latestDonations);
}
public void GetLatestDonations_ShouldReturnTheSpecifiedNumberOfDonations_WhenThereAreDonations()
{
var firstDonation = new Donation { Date = new DateTime(2011, 10, 21) };
var secondDonation = new Donation { Date = new DateTime(2011, 10, 22) };
var donations = new[] { firstDonation, secondDonation };
var donationsRepository = Substitute.For<IDonationRepository>();
donationsRepository.GetAll().Returns(donations);
var donationsService = new DonationsService(donationsRepository);
IEnumerable<Donation> latestDonations = donationsService.GetLatestDonations(1);
CollectionAssert.AreEqual(new[] { secondDonation }, latestDonations);
}
public void GetLatestDonations_ShouldReturnAListOfDonations_InDescendingOrderByDate_WhenThereAreDonations()
{
var firstDonation = new Donation {
Date = new DateTime(2011, 10, 21)
};
var secondDonation = new Donation {
Date = new DateTime(2011, 10, 22)
};
var donations = new[] { firstDonation, secondDonation };
var donationsRepository = Substitute.For <IDonationRepository>();
donationsRepository.GetAll().Returns(donations);
var donationsService = new DonationsService(donationsRepository);
IEnumerable <Donation> latestDonations = donationsService.GetLatestDonations(5);
CollectionAssert.AreEqual(new[] { secondDonation, firstDonation }, latestDonations);
}