private void strategyPatternBtn_Click(object sender, RoutedEventArgs e)
{
// Prepare strategies
IBillingStrategy normalStrategy = new NormalStrategy();
IBillingStrategy happyHourStrategy = new HappyHourStrategy();
Customer firstCustomer = new Customer(normalStrategy);
// Normal billing
firstCustomer.Add(1.0, 1);
// Start Happy Hour
firstCustomer.Strategy = happyHourStrategy;
firstCustomer.Add(1.0, 2);
// New Customer
Customer secondCustomer = new Customer(happyHourStrategy);
secondCustomer.Add(0.8, 1);
// The Customer pays
firstCustomer.PrintBill();
// End Happy Hour
secondCustomer.Strategy = normalStrategy;
secondCustomer.Add(1.3, 2);
secondCustomer.Add(2.5, 1);
secondCustomer.PrintBill();
}
static void Main(string[] args)
{
NormalStrategy NormalStrategy = new NormalStrategy();
HappyHourStrategy HappyHourStrategy = new HappyHourStrategy();
Customer FirstCustomer = new Customer(NormalStrategy);
//Normal
FirstCustomer.Add(1.0, 2);
//Happy Hour starts
FirstCustomer.BillingStartegy = HappyHourStrategy;
FirstCustomer.Add(2, 2);
FirstCustomer.PrintBill();
Customer SecondCustomer = new Customer(HappyHourStrategy);
SecondCustomer.Add(4, 2);
SecondCustomer.Add(6, 2);
SecondCustomer.PrintBill();
//Happy hour finishes
Customer ThirdCustomer = new Customer(NormalStrategy);
ThirdCustomer.Add(2, 3);
ThirdCustomer.PrintBill();
}
public void Test_Execute()
{
// Prepare strategies
IBillingStrategy normalStrategy = new NormalStrategy();
IBillingStrategy happyHourStrategy = new HappyHourStrategy();
Customer firstCustomer = new Customer(normalStrategy);
// Normal billing
firstCustomer.Add(1.0, 1);
// Start Happy Hour
firstCustomer.Strategy = happyHourStrategy;
firstCustomer.Add(1.0, 2);
// New Customer
Customer secondCustomer = new Customer(happyHourStrategy);
secondCustomer.Add(0.8, 1);
// End Happy Hour
secondCustomer.Strategy = normalStrategy;
secondCustomer.Add(1.3, 2);
secondCustomer.Add(2.5, 1);
// Check calculated bill
Assert.Equal(2.0, firstCustomer.GetCurrentBill());
Assert.Equal(5.5, secondCustomer.GetCurrentBill());
// The Customers pay, clear bill
firstCustomer.PrintBill();
secondCustomer.PrintBill();
// Check bill cleared
Assert.Equal(0, firstCustomer.GetCurrentBill());
Assert.Equal(0, secondCustomer.GetCurrentBill());
}
