public void UndoTo_ActionRemaining()
{
MockupAction action = new MockupAction();
undoRedoManager.RegisterExecutedAction(action);
undoRedoManager.RegisterExecutedAction(action);
undoRedoManager.RegisterExecutedAction(action);
undoRedoManager.RegisterExecutedAction(action);
undoRedoManager.UndoTo(2);
Assert.Equal(2, undoRedoManager.History.Count());
Assert.Equal(2, undoRedoManager.HistoryCount);
}
public void Undo_MultipleActions_UndoInvoked_CanUndo()
{
MockupAction action1 = new MockupAction();
MockupAction action2 = new MockupAction();
undoRedoManager.RegisterExecutedAction(action1);
undoRedoManager.RegisterExecutedAction(action2);
undoRedoManager.UndoAll();
Assert.True(action1.IsUndoInvoked);
Assert.True(action2.IsUndoInvoked);
Assert.True(undoRedoManager.CanRedo);
Assert.False(undoRedoManager.CanUndo);
}
public void Redo_SingleAction_RedoInvoked()
{
EventHandler <StateChangedEventArgs> handler = (sender, e) =>
{
Assert.Equal(StateChangedReason.Redo, e.Reason);
};
MockupAction action = new MockupAction();
undoRedoManager.RegisterExecutedAction(action);
undoRedoManager.UndoAll();
undoRedoManager.StateChanged += handler;
undoRedoManager.Redo();
undoRedoManager.StateChanged -= handler;
Assert.True(action.IsRedoInvoked);
Assert.True(undoRedoManager.CanUndo);
Assert.False(undoRedoManager.CanRedo);
}
public void RegisterExecutedAction_WithUndoAction_StartedAfterFirstAction()
{
MockupAction oldAction1 = new MockupAction();
MockupAction oldAction2 = new MockupAction();
undoRedoManager.RegisterExecutedAction(oldAction1);
undoRedoManager.RegisterExecutedAction(oldAction2);
undoRedoManager.Undo();
MockupAction action1 = new MockupAction();
MockupAction action2 = new MockupAction();
undoRedoManager.RegisterExecutedAction(action1);
Assert.True(undoRedoManager.CanUndo);
undoRedoManager.RegisterExecutedAction(action2);
Assert.True(undoRedoManager.CanUndo);
}
public void RegisterExecutedAction_WithUndoneActions_StartedFromScratch()
{
MockupAction oldAction1 = new MockupAction();
MockupAction oldAction2 = new MockupAction();
undoRedoManager.RegisterExecutedAction(oldAction1);
undoRedoManager.RegisterExecutedAction(oldAction2);
undoRedoManager.UndoAll();
MockupAction action1 = new MockupAction();
MockupAction action2 = new MockupAction();
undoRedoManager.RegisterExecutedAction(action1);
Assert.True(undoRedoManager.CanUndo);
undoRedoManager.RegisterExecutedAction(action2);
Assert.True(undoRedoManager.CanUndo);
}
public void ManyActions_UndoRedo_ActionsInvoked()
{
MockupAction action1 = new MockupAction();
MockupAction action2 = new MockupAction();
CompositeUndoRedoAction composite = new CompositeUndoRedoAction("MyName", DateTimeOffset.Now);
composite.Add(action1);
composite.Add(action2);
Assert.Equal(2, composite.Actions.Count);
composite.Undo();
Assert.True(action1.IsUndoInvoked);
Assert.True(action2.IsUndoInvoked);
composite.Redo();
Assert.True(action1.IsRedoInvoked);
Assert.True(action2.IsRedoInvoked);
}
public void RegisterExecutedAction_CanUndo()
{
EventHandler <StateChangedEventArgs> handler = (sender, e) =>
{
Assert.Equal(StateChangedReason.Register, e.Reason);
};
MockupAction action1 = new MockupAction();
MockupAction action2 = new MockupAction();
undoRedoManager.StateChanged += handler;
undoRedoManager.RegisterExecutedAction(action1);
undoRedoManager.StateChanged -= handler;
Assert.Equal(1, undoRedoManager.History.Count());
Assert.Equal(1, undoRedoManager.HistoryCount);
Assert.True(undoRedoManager.CanUndo);
undoRedoManager.RegisterExecutedAction(action2);
Assert.Equal(2, undoRedoManager.History.Count());
Assert.Equal(2, undoRedoManager.HistoryCount);
Assert.True(undoRedoManager.CanUndo);
}
