public void UndoTransactionWithCaretPrimitive()
{
var textBuffer = CreateTextBuffer("");
var textView = TextEditorFactoryService.CreateTextView(textBuffer);
var weakTextView = new WeakReference(textView);
DoWork(
() =>
{
var undoManager = TextBufferUndoManagerProvider.GetTextBufferUndoManager(textBuffer);
using (var transaction = undoManager.TextBufferUndoHistory.CreateTransaction("Test Edit"))
{
var operations = EditorOperationsFactoryService.GetEditorOperations(textView);
operations.AddBeforeTextBufferChangePrimitive();
textBuffer.SetText("hello world");
transaction.Complete();
}
});
textView.Close();
textView = null;
// The AddBeforeTextBufferChangePrimitive put the ITextView into the undo stack
// so we need to clear it out here
ClearUndoHistory(textBuffer);
RunGarbageCollector();
Assert.Null(weakTextView.Target);
}
/// <summary>
/// Make sure that on tear down we don't have a current transaction. Having one indicates
/// we didn't close it and hence are killing undo in the ITextBuffer
/// </summary>
public override void Dispose()
{
base.Dispose();
var history = TextBufferUndoManagerProvider.GetTextBufferUndoManager(_textView.TextBuffer).TextBufferUndoHistory;
Assert.Null(history.CurrentTransaction);
}
public void UndoTransactionSimple()
{
var textBuffer = CreateTextBuffer("");
var textView = TextEditorFactoryService.CreateTextView(textBuffer);
var weakTextView = new WeakReference(textView);
DoWork(
() =>
{
var undoManager = TextBufferUndoManagerProvider.GetTextBufferUndoManager(textBuffer);
using (var transaction = undoManager.TextBufferUndoHistory.CreateTransaction("Test Edit"))
{
textBuffer.SetText("hello world");
transaction.Complete();
}
});
textView.Close();
textView = null;
RunGarbageCollector();
Assert.Null(weakTextView.Target);
}
