public void Forward()
{
Create("big dog", "big cat", "big tree", "big fish");
var lineRange = _textBuffer.GetLineRange(1);
var visualSpan = VisualSpan.NewLine(lineRange);
visualSpan.Select(_textView, SearchPath.Forward);
Assert.False(_textView.Selection.IsReversed);
Assert.Equal(lineRange.ExtentIncludingLineBreak, _textView.GetSelectionSpan());
}
public void Backwards()
{
Create("big dog", "big cat", "big tree", "big fish");
var lineRange = _textBuffer.GetLineRange(1);
var visualSpan = VisualSpan.NewLine(lineRange);
visualSpan.Select(_textView, SearchPath.Backward);
TestableSynchronizationContext.RunAll();
Assert.True(_textView.Selection.IsReversed);
Assert.Equal(lineRange.ExtentIncludingLineBreak, _textView.GetSelectionSpan());
}
public void Edit_DeleteVisualLinesAndUndo()
{
Create("foo", "bar", "baz", "qux");
var snapshot = _textBuffer.CurrentSnapshot;
var visualSpan = VisualSpan.NewLine(new SnapshotLineRange(snapshot, 1, 2));
var trackingVisualSpan = _bufferTrackingService.CreateVisualSpan(visualSpan);
using (var undoTransaction = _undoHistory.CreateTransaction("delete"))
{
_textBuffer.Delete(_textBuffer.GetLineRange(1, 2).ExtentIncludingLineBreak.Span);
undoTransaction.Complete();
}
Assert.Equal(new[] { "foo", "qux" }, _textBuffer.GetLines());
_undoHistory.Undo(1);
Assert.Equal(new[] { "foo", "bar", "baz", "qux" }, _textBuffer.GetLines());
var newSnapshot = _textBuffer.CurrentSnapshot;
var newVisualSpan = VisualSpan.NewLine(new SnapshotLineRange(newSnapshot, 1, 2));
Assert.True(trackingVisualSpan.VisualSpan.IsSome());
Assert.Equal(newVisualSpan, trackingVisualSpan.VisualSpan.Value);
}
