public void EndOperationWithoutCreatingUndoState()
{
DocumentDataModel target = new DocumentDataModel();
target.New(new Size(700, 1200), new Thickness(32, 32, 32, 32));
DocumentDataModelInvariant(target);
Assert.AreEqual(DataModel.ModelState.Ready, target.State);
Assert.IsFalse(target.HasUndoData);
target.BeginOperation("testoperation");
target.EndOperationWithoutCreatingUndoState("testoperation");
Assert.IsFalse(target.HasUndoData);
DocumentDataModelInvariant(target);
Assert.AreEqual(DataModel.ModelState.Ready, target.State);
}