private static void TestReverse(List <int> comparisonList, UndoableList <int> undoList)
{
TestEquals(comparisonList, undoList);
comparisonList.Reverse();
undoList.Reverse();
TestEquals(comparisonList, undoList);
comparisonList.Reverse();
Debug.Assert(undoList.Undo());
TestEquals(comparisonList, undoList);
comparisonList.Reverse();
Debug.Assert(undoList.Redo());
TestEquals(comparisonList, undoList);
int count = comparisonList.Count / 2;
comparisonList.Reverse(0, count);
undoList.Reverse(0, count);
TestEquals(comparisonList, undoList);
comparisonList.Reverse(0, count);
Debug.Assert(undoList.Undo());
TestEquals(comparisonList, undoList);
comparisonList.Reverse(0, count);
Debug.Assert(undoList.Redo());
TestEquals(comparisonList, undoList);
}
private static void TestInsert(List <int> comparisonList, UndoableList <int> undoList)
{
TestEquals(comparisonList, undoList);
int index = comparisonList.Count / 2;
comparisonList.Insert(index, 999);
undoList.Insert(index, 999);
comparisonList.RemoveAt(index);
Debug.Assert(undoList.Undo());
TestEquals(comparisonList, undoList);
comparisonList.Insert(index, 999);
Debug.Assert(undoList.Redo());
TestEquals(comparisonList, undoList);
}
private static void TestAdd(List <int> comparisonList, UndoableList <int> undoList)
{
TestEquals(comparisonList, undoList);
Stack <int> redoStack = new Stack <int>();
while (comparisonList.Count > 0)
{
redoStack.Push(comparisonList[comparisonList.Count - 1]);
comparisonList.RemoveAt(comparisonList.Count - 1);
Debug.Assert(undoList.Undo());
TestEquals(comparisonList, undoList);
}
while (redoStack.Count > 0)
{
comparisonList.Add(redoStack.Pop());
Debug.Assert(undoList.Redo());
TestEquals(comparisonList, undoList);
}
}
private static void TestInsertRange(List <int> comparisonList, UndoableList <int> undoList)
{
TestEquals(comparisonList, undoList);
int[] range = { 1, 2, 3, 4, 5 };
int index = comparisonList.Count / 2;
comparisonList.InsertRange(index, range);
undoList.InsertRange(index, range);
TestEquals(comparisonList, undoList);
comparisonList.RemoveRange(index, range.Length);
Debug.Assert(undoList.Undo());
TestEquals(comparisonList, undoList);
comparisonList.InsertRange(index, range);
Debug.Assert(undoList.Redo());
TestEquals(comparisonList, undoList);
}