/// <param name="textSpan">If <see langword="null"/> the current caret position will be used.</param>
public async Task <CodeAction> TryGetCodeActionAsync(TextSpan?textSpan = null)
{
var span = textSpan ?? new TextSpan(_view.Caret.Position.BufferPosition, 0);
var document = this.Workspace.CurrentSolution.GetDocument(_hostDocument.Id);
var actions = new List <CodeAction>();
var context = new CodeRefactoringContext(
document, span, actions.Add, CancellationToken.None);
await _codeRefactoringProvider.ComputeRefactoringsAsync(context);
return(actions.SingleOrDefault());
}
public async Task AssertTag(string expectedFromName, string expectedToName, bool invokeAction = false)
{
await WaitForAsyncOperationsAsync();
var tags = _tagger.GetTags(_view.TextBuffer.CurrentSnapshot.GetSnapshotSpanCollection());
// There should only ever be one tag
Assert.Equal(1, tags.Count());
var tag = tags.Single();
var document = this.Workspace.CurrentSolution.GetDocument(_hostDocument.Id);
var diagnostic = await TryGetDocumentDiagnosticAsync(document);
// There should be a single rename tracking diagnostic
Assert.NotNull(diagnostic);
Assert.Equal(RenameTrackingCodeRefactoringProvider.DiagnosticId, diagnostic.Id);
var actions = new List <CodeAction>();
var context = new CodeRefactoringContext(
document, diagnostic.Location.SourceSpan, actions.Add, CancellationToken.None);
await _codeRefactoringProvider.ComputeRefactoringsAsync(context);
// There should only be one code action
Assert.Equal(1, actions.Count);
Assert.Equal(string.Format(EditorFeaturesResources.Rename_0_to_1, expectedFromName, expectedToName), actions[0].Title);
if (invokeAction)
{
var operations = (await actions[0].GetOperationsAsync(CancellationToken.None)).ToArray();
Assert.Equal(1, operations.Length);
operations[0].TryApply(this.Workspace, new ProgressTracker(), CancellationToken.None);
}
}