public void OneServicePerBuffer()
{
var textBuffer = new TextBuffer("", MockFor<IContentType>().Object);
var undoServiceFactory = new UndoServiceFactory();
var undoService = undoServiceFactory.ForTextBuffer(textBuffer);
Assert.AreSame(undoService, undoServiceFactory.ForTextBuffer(textBuffer));
}
public void UndoInsertion()
{
var textBuffer = new TextBuffer("", MockFor<IContentType>().Object);
var undoServiceFactory = new UndoServiceFactory();
var undoService = undoServiceFactory.ForTextBuffer(textBuffer);
var oldSnapshot = textBuffer.CurrentSnapshot;
textBuffer.Insert(0, "text");
var changes = new List<TextChangeArgs>();
textBuffer.Changed += (sender, args) => changes.Add(args);
undoService.Undo();
Assert.AreEqual(1, changes.Count);
Assert.AreSame(oldSnapshot, textBuffer.CurrentSnapshot);
}
public void WillNotCallTheTokenizerTwiceForTheSameLine()
{
var firstLineText = " ";
var tokenizer = MockFor<IPartitionTokenizer>();
tokenizer
.Setup(_ => _.Tokenize(PartitionTokenType.None, firstLineText))
.Returns(new[] { new PartitionToken(0, firstLineText.Length, PartitionTokenType.Code)});
var buffer = new TextBuffer(firstLineText + "\n", ContentType());
var secondLine = buffer.CurrentSnapshot.Lines[1];
var subject = new PartitionTokenTypeCache(tokenizer.Object);
Assert.AreEqual(PartitionTokenType.Code, subject.LastPartitionTokenTypeBefore(secondLine));
Assert.AreEqual(PartitionTokenType.Code, subject.LastPartitionTokenTypeBefore(secondLine));
VerifyAllMocks();
}
