static void TestUndoableCommand()
{
var history = new Command.Editor.History();
var document = new Command.Editor.HtmlDocument();
document.Content = "Hello World";
var boldCommand = new BoldCommand(document, history);
boldCommand.Execute();
System.Console.WriteLine(document.Content);
document.Content = "This is Command Pattern";
boldCommand = new BoldCommand(document, history);
boldCommand.Execute();
System.Console.WriteLine(document.Content);
var undoCommand = new UndoCommand(history);
undoCommand.Execute();
System.Console.WriteLine(document.Content);
undoCommand.Execute();
System.Console.WriteLine(document.Content);
}
