public void SelectTodaysBauShift_Given_10EngineersWith0Shifts_After10DaysOfShifts_EachEngineerDidntHadShiftInTwoCosequentDays()
{
//arrange
int numberOfEngineers = 10;
int numberOfDays = 12;
ICalendar calendar = A.Fake <ICalendar>();
IList <ISupportEngineer> tenSupportEngineersWithouthShifts = new List <ISupportEngineer>();
for (int i = 0; i < numberOfEngineers; i++)
{
tenSupportEngineersWithouthShifts.Add(new SupportEngineerBuilder()
.WihtDateProvider(calendar)
.Build());
}
var defaultSupportEngineerFilterChainFactory = new DefaultSupportEngineerFilterChainFactory();
var sut = defaultSupportEngineerFilterChainFactory.Create();
//act
//at the beggining all engineers have 0 shifts
foreach (var supportEngineer in tenSupportEngineersWithouthShifts)
{
supportEngineer.ShiftCount.ShouldBe(0);
}
;
//simulate ten days of shifts
for (int daysToAdd = 0; daysToAdd < numberOfDays; daysToAdd++)
{
//simulate weekend
if (daysToAdd == 5)
{
daysToAdd = daysToAdd + 2;
}
A.CallTo(() => calendar.Today).Returns(DateTime.Today.AddDays(daysToAdd));
sut.Filter(tenSupportEngineersWithouthShifts);
}
//assert
foreach (var supportEngineer in tenSupportEngineersWithouthShifts)
{
var lastTwoShifts = supportEngineer.LastTwoShifts;
var lastShift = lastTwoShifts.First();
var secondToLastShift = lastTwoShifts.Last();
((lastShift.Date - secondToLastShift.Date).TotalDays > 1).ShouldBeTrue();
}
}
public void Create_Returns_ChainedFilters()
{
//arrange
var sut = new DefaultSupportEngineerFilterChainFactory();
//act
var filterChain = sut.Create();
//assert
filterChain.ShouldBeOfType <ShiftSelectedTodayFilter>();
filterChain.Successor.ShouldBeOfType <PreferEngineersWhoDidintHadShiftInLastWeekFilter>();
filterChain.Successor.Successor.ShouldBeOfType <EngineersWhoDidntHadTwoShiftsInLastTwoWeeksFilter>();
filterChain.Successor.Successor.Successor.ShouldBeOfType <EngineersWhoDidntHadShiftYesterdayFilter>();
filterChain.Successor.Successor.Successor.Successor.ShouldBeOfType <ChooseTwoRandomEngineersFilter>();
filterChain.Successor.Successor.Successor.Successor.Successor
.ShouldBeOfType <LogShiftForSelectedEngineersFilter>();
filterChain.Successor.Successor.Successor.Successor.Successor.Successor.ShouldBeNull();
}