public void ShowPattern()
{
CellPhone phone = new CellPhone();
//Should return "Already off"
var shouldAlreadyBeOff = phone.TurnOff();
//Turn On
var successTurningOn = phone.TurnOn();
//Turning On Again ShouldFail
var shouldAlreadyBeOn = phone.TurnOn();
//Making A call should be successfull
var successMakingCall = phone.MakeCall();
//Making another Call should fail
var shouldAlreadyBeOnCall = phone.MakeCall();
var successPlacingOnHold = phone.PlaceCallOnHold();
var failTurningOff = phone.TurnOff();
var successHangingUp = phone.HangUp();
var successTurningPhoneOff = phone.TurnOff();
}
public OnHoldState(CellPhone phone)
{
_phone = phone;
}
public InCallState(CellPhone phone)
{
_phone = phone;
}
public OffState(CellPhone phone)
{
_phone = phone;
}