/// <summary>
/// Gets the wanted command based on the input.
/// </summary>
/// <param name="command">The concrete command name.</param>
/// <returns>An object which implements the ICommand interface.</returns>
public ICommand GetCommand(string command)
{
command = command.ToLower();
if (this.commandDictionary.ContainsKey(command))
{
return this.commandDictionary[command];
}
else
{
ICommand newCommand;
switch (command)
{
case "pop":
newCommand = new PopBalloonCommand();
break;
case "exit":
newCommand = new ExitCommand();
break;
case "restart":
newCommand = new RestartCommand();
break;
case "top":
newCommand = new ShowTopScoreCommand();
break;
case "undo":
newCommand = new UndoCommand();
break;
case "invalidinput":
newCommand = new InvalidInputCommand();
break;
default:
throw new ArgumentException("Invalid command " + command.ToLower());
}
this.commandDictionary.Add(command, newCommand);
return newCommand;
}
}
public UndoCommandTests()
{
this.context = new MockIContext().MockContext.Object;
this.command = new UndoCommand();
}
