internal void UndoAll()
{
while (m_doneStack.Count > 0)
{
Assert.AreEqual(m_doneStack.Peek().Undo, m_actionHandler.GetUndoText());
m_actionHandler.Undo();
// put it back on the taskQueue as something that can be Redone.
m_taskQueue.Enqueue(m_doneStack.Pop());
}
Assert.AreEqual(OriginalUndoCount, m_actionHandler.UndoableSequenceCount);
}
