public void Last_WhenInfoCollectionIsEmpty_ReturnsNull()
{
IInfoCollection <ICreditInfo, Sut> sut = CreateSut();
IInfo <ICreditInfo> result = sut.Last();
Assert.That(result, Is.Null);
}
public void Last_WhenInfoCollectionContainsOneInfoElement_ReturnsNewestInfoElement()
{
IInfoCollection <ICreditInfo, Sut> sut = CreateSut();
DateTime infoOffset = new DateTime(DateTime.Today.Year, DateTime.Today.Month, 1);
sut.Add(_fixture.BuildCreditInfoMock(infoOffset).Object);
IInfo <ICreditInfo> result = sut.Last();
Assert.That(result.Year == infoOffset.Year && result.Month == infoOffset.Month, Is.True);
}
public void Next_WhenInfoCollectionDoesNotContainNextInfoElement_ReturnsNull()
{
IInfoCollection <ICreditInfo, Sut> sut = CreateSut();
DateTime infoOffset = new DateTime(DateTime.Today.Year, DateTime.Today.Month, 1);
sut.Add(_fixture.BuildCreditInfoMock(infoOffset).Object);
sut.Add(_fixture.BuildCreditInfoMock(infoOffset.AddMonths(-1)).Object);
sut.Add(_fixture.BuildCreditInfoMock(infoOffset.AddMonths(-2)).Object);
IInfo <ICreditInfo> result = sut.Next(sut.Last());
Assert.That(result, Is.Null);
}