static void CommandTester()
{
#region sample 1
// Create receiver, command, and invoker
var receiver = new Receiver();
var command = new SampleConcreteCommand(receiver);
var invoker = new Invoker();
// Set and execute command
invoker.SetCommand(command);
invoker.ExecuteCommand();
#endregion
#region sample 2
// Create user and let her compute
var user = new User();
// User presses calculator buttons
user.Compute('+', 100);
user.Compute('-', 50);
user.Compute('*', 10);
user.Compute('/', 2);
// Undo 4 commands
user.Undo(4);
// Redo 3 commands
user.Redo(3);
#endregion
}
public static void TestCommands()
{
SampleCommand command = new SampleConcreteCommand(new Receiver());
var invoker = new Invoker();
invoker.SetCommand(command);
StringAssert.AreEqualIgnoringCase(invoker.ExecuteCommand(true), "Called Receiver.Action()");
}
