public void Given_a_CommandManager_When_a_Command_Aborts_Should_Not_Register_for_Undo()
{
var aggregator = new Mock <IEventAggregator>();
CommandManager manager = new CommandManager(aggregator.Object, SynchronizationContext.Current);
AbortingCommand cmd = new AbortingCommand();
manager.Do(Execute.The(cmd));
Assert.IsFalse(manager.CanUndo);
}
public void Given_a_CommandManager_When_one_of_multiple_Commands_Aborts_Should_only_Register_the_other_Commands_for_Undo()
{
var aggregator = new Mock <IEventAggregator>();
CommandManager manager = new CommandManager(aggregator.Object, SynchronizationContext.Current);
IncrementByOneCommand incCmd = new IncrementByOneCommand(1);
AbortingCommand cmd = new AbortingCommand();
IncrementBy5Command inc5Cmd = new IncrementBy5Command(1);
manager.Do(Execute.The(incCmd));
manager.Do(Execute.The(cmd));
manager.Do(Execute.The(inc5Cmd));
Assert.IsTrue(manager.UndoStack.Count == 2);
Assert.IsTrue(manager.UndoStack.Pop().Commands[0] == inc5Cmd);
Assert.IsTrue(manager.UndoStack.Pop().Commands[0] == incCmd);
}
