public void MaximumUndoTimes()
{
// List which support undo/redo.
// maximumUndoTimes is 2.
var target = new UndoRedoList <int>(maximumUndoTimes: 2);
// Add an element 3 times.
target.Add(100);
target.Add(200);
target.Add(300);
// You can undo 2 times.
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.CanUndo);
Assert.IsTrue(target.CanRedo);
Assert.IsTrue(target.Undo());
// You can redo 2 times also.
Assert.IsFalse(target.CanUndo);
Assert.IsTrue(target.CanRedo);
Assert.IsTrue(target.Redo());
//Assert.IsTrue (target.CanUndo);
//Assert.IsTrue (target.CanRedo);
//Assert.IsTrue (target.Redo());
//Assert.IsTrue (target.CanUndo);
//Assert.IsFalse(target.CanRedo);
}
public void Redo()
{
var target = new UndoRedoList <int, List <int> > {
100, 200
};
Assert.IsFalse(target.CanRedo);
Assert.IsFalse(target.Redo());
target.Undo();
Assert.IsTrue(target.CanRedo);
Assert.IsTrue(target.Redo());
Assert.IsFalse(target.CanRedo);
Assert.AreEqual(2, target.Count);
Assert.AreEqual(100, target[0]);
Assert.AreEqual(200, target[1]);
target.Undo();
Assert.IsTrue(target.CanRedo);
target.Add(300);
Assert.AreEqual(2, target.Count);
Assert.AreEqual(100, target[0]);
Assert.AreEqual(300, target[1]);
Assert.IsFalse(target.CanRedo);
target.RemoveAt(0);
target.Undo();
Assert.IsTrue(target.CanRedo);
Assert.IsTrue(target.Redo());
Assert.IsFalse(target.CanRedo);
Assert.AreEqual(1, target.Count);
Assert.AreEqual(300, target[0]);
target.Add(500);
target[target.Count - 1] = 600;
Assert.AreEqual(2, target.Count);
target.Undo();
Assert.IsTrue(target.CanRedo);
Assert.IsTrue(target.Redo());
Assert.AreEqual(2, target.Count);
Assert.AreEqual(600, target[target.Count - 1]);
target.Clear();
target.Undo();
Assert.IsTrue(target.CanRedo);
Assert.AreEqual(2, target.Count);
Assert.AreEqual(300, target[0]);
Assert.AreEqual(600, target[1]);
Assert.IsTrue(target.Redo());
Assert.AreEqual(0, target.Count);
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
}
public void TestRedoListCount()
{
UndoRedoList sut = new UndoRedoList();
sut.Add(NoAction, NoAction);
sut.Add(NoAction, NoAction);
sut.Add(NoAction, NoAction);
sut.Undo();
sut.Undo();
Assert.That(sut.RedoCount, Is.EqualTo(2));
}
public void AnotherUndoRedoList()
{
// List which support undo/redo.
var target = new UndoRedoList <int>(maximumUndoTimes: 2);
target.Add(100);
target.RemoveAt(0);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.Undo());
Assert.IsFalse(target.Undo());
Assert.IsTrue(target.Redo());
Assert.IsTrue(target.Redo());
Assert.IsFalse(target.Redo());
}
public void ActionScopeTest()
{
// list which support undo/redo.
var target = new UndoRedoList <int, List <int> >();
Assert.IsFalse(target.CanUndo);
Assert.IsFalse(target.CanRedo);
// ActionScope
using (var scope = new UndoRedoList <int, List <int> > .ActionScope(target)) {
// Modify target in ActionScope
target.Add(100);
target.Add(200);
target.Add(300);
}
Assert.AreEqual(3, target.Count);
Assert.AreEqual(100, target[0]);
Assert.AreEqual(200, target[1]);
Assert.AreEqual(300, target[2]);
Assert.IsTrue(target.CanUndo);
// Undo
Assert.IsTrue(target.Undo());
// The 3 actions in ActionScope can undo in one time.
Assert.AreEqual(0, target.Count);
Assert.IsFalse(target.CanUndo);
}
public void UndoRedoTest()
{
// list which support undo/redo.
var target = new UndoRedoList <int, List <int> >();
Assert.IsFalse(target.CanUndo);
Assert.IsFalse(target.CanRedo);
// Modify target
target.Add(100);
Assert.AreEqual(1, target.Count);
Assert.AreEqual(100, target[0]);
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
// Undo
Assert.IsTrue(target.Undo());
Assert.AreEqual(0, target.Count);
Assert.IsFalse(target.CanUndo);
Assert.IsTrue(target.CanRedo);
// Redo
Assert.IsTrue(target.Redo());
Assert.AreEqual(1, target.Count);
Assert.AreEqual(100, target[0]);
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
}
public void ActionScope()
{
var target = new UndoRedoList <int, List <int> > {
100, 200
};
using (var scope = new UndoRedoList <int, List <int> > .ActionScope(target)) {
target.Add(300);
target.RemoveAt(0);
target.RemoveAt(1);
target.Add(400);
target.Add(500);
}
Assert.AreEqual(3, target.Count);
Assert.AreEqual(200, target[0]);
Assert.AreEqual(400, target[1]);
Assert.AreEqual(500, target[2]);
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.CanUndo);
Assert.IsTrue(target.CanRedo);
Assert.AreEqual(2, target.Count);
Assert.AreEqual(100, target[0]);
Assert.AreEqual(200, target[1]);
Assert.IsTrue(target.Redo());
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
Assert.AreEqual(3, target.Count);
Assert.AreEqual(200, target[0]);
Assert.AreEqual(400, target[1]);
Assert.AreEqual(500, target[2]);
}
public void TestUndoRedoTwoTimes()
{
Action undo = mockRepo.CreateMock <Action>();
Action redo = mockRepo.CreateMock <Action>();
Expect.Call(() => undo()).Repeat.Twice();
Expect.Call(() => redo()).Repeat.Twice();
mockRepo.ReplayAll();
UndoRedoList sut = new UndoRedoList();
sut.Add(undo, redo);
sut.Undo();
sut.Redo();
sut.Undo();
sut.Redo();
}
public void TestRedoableWhenUndo()
{
UndoRedoList sut = new UndoRedoList();
sut.Add(NoAction, NoAction);
sut.Undo();
Assert.That(sut.IsRedoActive, Is.True);
}
public void TestBasicUndo()
{
Action act = mockRepo.CreateMock <Action>();
act();
mockRepo.ReplayAll();
UndoRedoList sut = new UndoRedoList();
sut.Add(act, null);
sut.Undo();
}
public void UndoRedoListTest()
{
// List which support undo/redo.
var target = new UndoRedoList <int>();
target.Add(100);
// You can undo/redo also.
Assert.IsTrue(target.CanUndo);
Assert.IsFalse(target.CanRedo);
Assert.IsTrue(target.Undo());
Assert.IsTrue(target.Redo());
}
static void RemoveTest(UndoRedoList <int, List <int> > list)
{
for (var count = 1; count <= times; count++)
{
list.RemoveAt(times - count);
}
for (var count = 1; count <= times; count++)
{
list.Undo();
}
for (var count = 1; count <= times; count++)
{
list.Redo();
}
}
static void AddTest(UndoRedoList <int, List <int> > list)
{
for (var count = 1; count <= times; count++)
{
list.Add(count);
}
for (var count = 1; count <= times; count++)
{
list.Undo();
}
for (var count = 1; count <= times; count++)
{
list.Redo();
}
}
public void DisabledUndoScope()
{
var target = new UndoRedoList <int, List <int> > {
100
};
Assert.IsTrue(target.CanUndo);
using (var scope = new UndoRedoList <int, List <int> > .DisabledUndoScope(target))
target.Add(200);
Assert.IsTrue(target.CanUndo);
Assert.IsTrue(target.Undo());
Assert.IsFalse(target.CanUndo);
target.Add(300);
Assert.IsTrue(target.CanUndo);
}
public void TestUndoRedoTwoTimesIsUndoableRedoable()
{
UndoRedoList sut = new UndoRedoList();
sut.Add(NoAction, NoAction);
Assert.That(sut.IsUndoActive);
Assert.That(sut.UndoCount, Is.EqualTo(1));
sut.Undo();
Assert.That(sut.IsUndoActive, Is.False);
Assert.That(sut.UndoCount, Is.EqualTo(0));
Assert.That(sut.IsRedoActive);
Assert.That(sut.RedoCount, Is.EqualTo(1));
sut.Redo();
Assert.That(sut.IsUndoActive);
Assert.That(sut.UndoCount, Is.EqualTo(1));
Assert.That(sut.IsRedoActive, Is.False);
Assert.That(sut.RedoCount, Is.EqualTo(0));
}
static void ExchangeTest(UndoRedoList <int, List <int> > list)
{
for (var count = 1; count <= times; count++)
{
list.Add(count);
}
for (var count = 1; count <= times; count++)
{
list[random.Next(times)] = count;
}
for (var count = 1; count <= times; count++)
{
list.Undo();
}
for (var count = 1; count <= times; count++)
{
list.Redo();
}
}