public void TestTVOff()
{
Device device = new Television();
Command command = new Off(device);
DeviceButton button = new DeviceButton(command);
button.press();
button.press();
Assert.AreEqual(device.status, Status.off);
}
public void TestRadioOn()
{
Device device = new Radio();
Command command = new On(device);
DeviceButton button = new DeviceButton(command);
button.press();
Assert.AreEqual(device.status, Status.on);
}
static void Main(string[] args)
{
IElectronicDevice newDevice = TVRemote.GetDevice();
ICommand onCommand = new TurnTVOn(newDevice);
DeviceButton onPressed = new DeviceButton(onCommand);
onPressed.press();
ICommand offCommand = new TurnTVOff(newDevice);
onPressed = new DeviceButton(offCommand);
onPressed.press();
ICommand volUpCommand = new TurnTVUp(newDevice);
onPressed = new DeviceButton(volUpCommand);
onPressed.press();
onPressed.press();
onPressed.press();
ICommand volDownCommand = new TurnTVDown(newDevice);
onPressed = new DeviceButton(volDownCommand);
onPressed.press();
// ---------------------------------- //
Television theTV = new Television();
Radio theRadio = new Radio();
List <IElectronicDevice> allDevices = new List <IElectronicDevice>();
allDevices.Add(theTV);
allDevices.Add(theRadio);
TurnItAllOff turnOffDevices = new TurnItAllOff(allDevices);
DeviceButton turnThemOff = new DeviceButton(turnOffDevices);
turnThemOff.press();
}
public void TestVolumeDownRadio()
{
int expected = 4;
Device device = new Radio();
Command command = new VolumeDown(device);
DeviceButton button = new DeviceButton(command);
for (int i = 0; i < 6; i++)
{
button.press();
}
Assert.AreEqual(expected, device.volume);
}
public void TestVolumeDownTV()
{
int expected = 5;
Device device = new Television();
Command command = new VolumeDown(device);
DeviceButton button = new DeviceButton(command);
for (int i = 0; i < 5; i++)
{
button.press();
}
Assert.AreEqual(expected, device.volume);
}
public void TestUndo()
{
Device device = new Radio();
Command command = new On(device);
DeviceButton button = new DeviceButton(command);
button.press();
Assert.AreEqual(device.status, Status.on);
button.pressUndo();
Assert.AreEqual(device.status, Status.off);
Command c = new VolumeUp(device);
DeviceButton b = new DeviceButton(c);
b.press();
Assert.AreEqual(11, device.volume);
b.pressUndo();
Assert.AreEqual(10, device.volume);
}
static void Main(string[] args)
{
// Gets the ElectronicDevice to use:
IElectronicDevice newDevice = TvRemote.getDevice();
// TurnTVOn contains the command to turn on the tv
// When execute() is called on this command object
// it will execute the method on() in Television:
TurnTvOn onCommand = new TurnTvOn(newDevice);
// Calling the execute() causes on() to execute in Television
DeviceButton onPressed = new DeviceButton(onCommand);
// When press() is called theCommand.execute(); executes
onPressed.press();
//----------------------------------------------------------
// Now when execute() is called off() of Television executes
TurnTvOff offCommand = new TurnTvOff(newDevice);
// Calling the execute() causes off() to execute in Television
onPressed = new DeviceButton(offCommand);
// When press() is called theCommand.execute(); executes
onPressed.press();
//----------------------------------------------------------
// Now when execute() is called volumeUp() of Television executes
TvTurnUpp volUppCommand = new TvTurnUpp(newDevice);
// Calling the execute() causes volumeUp() to execute in Television
onPressed = new DeviceButton(volUppCommand);
// When press() is called theCommand.execute(); executes
onPressed.press();
onPressed.press();
onPressed.press();
//----------------------------------------------------------
// Creating a TV and Radio to turn off with 1 press
Television theTv = new Television();
Radio theRadio = new Radio();
// Add the Electronic Devices to a List
List<IElectronicDevice> allDevices = new List<IElectronicDevice>();
allDevices.Add(theTv);
allDevices.Add(theRadio);
// Send the List of Electronic Devices to TurnItAllOff
// where a call to run execute() on this function will
// call off() for each device in the list
TurnItAllOff turnOffDevices = new TurnItAllOff(allDevices);
// This calls for execute() to run which calls for off() to
// run for every ElectronicDevice
DeviceButton turnThemOff = new DeviceButton(turnOffDevices);
turnThemOff.press();
//----------------------------------------------------------
/*
* It is common to be able to undo a command in a command pattern
* To do so, DeviceButton will have a method called undo
* Undo() will perform the opposite action that the normal
* Command performs. undo() needs to be added to every class
* with an execute()
*/
turnThemOff.pressUndo();
onPressed.pressUndo();
// To undo more than one command add them to a LinkedList
// using addFirst(). Then execute undo on each item until
// there are none left. (This is your Homework)
Console.ReadLine();
}
