public void TestNonTraineeProcessingTime()
{
var cashier = new Cashier(0);
int completionTime = cashier.EnqueueCustomer(new CustomerA(0, 2));
Assert.AreEqual(2, completionTime);
completionTime = cashier.EnqueueCustomer(new CustomerB(1, 5));
Assert.AreEqual(6, completionTime);
}
public void TestBChoosingEmptyLine()
{
var c1 = new Cashier(1);
c1.EnqueueCustomer(new CustomerA(0, 10));
var c2 = new Cashier(2);
c2.EnqueueCustomer(new CustomerB(0, 2));
var t = new CashierTrainee(3);
var cashiers = new HashSet<ICashier> {c1, c2, t};
var b = new CustomerB(1, 10);
var chosenCashier = b.ChooseCashier(cashiers);
;
Assert.AreEqual(t, chosenCashier);
}
public void TestGetLineLength()
{
var cashier = new Cashier(0);
cashier.EnqueueCustomer(new CustomerA(1, 10));
cashier.EnqueueCustomer(new CustomerA(2, 5));
int time3 = cashier.EnqueueCustomer(new CustomerB(2, 3));
int completiontime = 2 + time3;
Assert.AreEqual(19, completiontime);
int lineLength = cashier.CalculateQueueLength(2);
Assert.AreEqual(3, lineLength);
lineLength = cashier.CalculateQueueLength(18);
Assert.AreEqual(1, lineLength);
lineLength = cashier.CalculateQueueLength(19);
Assert.AreEqual(0, lineLength);
lineLength = cashier.CalculateQueueLength(36);
Assert.AreEqual(0, lineLength);
}
public void TestAChoosingShortestLine()
{
var c1 = new Cashier(1);
c1.EnqueueCustomer(new CustomerA(1, 10));
c1.EnqueueCustomer(new CustomerB(2, 100));
c1.EnqueueCustomer(new CustomerA(3, 8));
var c2 = new Cashier(2);
c2.EnqueueCustomer(new CustomerB(2, 10));
c2.EnqueueCustomer(new CustomerB(2, 15));
var c3 = new CashierTrainee(3);
c3.EnqueueCustomer(new CustomerA(1, 9999));
var cashiers = new HashSet<ICashier> {c1, c2, c3};
var c = new CustomerA(3, 1);
var chosenCashier = c.ChooseCashier(cashiers);
Assert.AreEqual(c3, chosenCashier);
}
public void TestBChoosingLineWithFewestItemsLeftForLastPerson()
{
var c1 = new CashierTrainee(1);
c1.EnqueueCustomer(new CustomerA(1, 10));
c1.EnqueueCustomer(new CustomerB(2, 100));
c1.EnqueueCustomer(new CustomerA(3, 8));
var c2 = new Cashier(2);
c2.EnqueueCustomer(new CustomerB(2, 10));
c2.EnqueueCustomer(new CustomerB(2, 15));
var c3 = new Cashier(3);
c3.EnqueueCustomer(new CustomerA(1, 18));
var cashiers = new HashSet<ICashier> {c1, c2, c3};
var c = new CustomerB(4, 999);
var chosenCashier = c.ChooseCashier(cashiers);
Assert.AreEqual(c1, chosenCashier);
}