internal async Task RunTestAsync <TTagger, TTag>(string testFile, CreateTagger <TTagger, TTag> createTagger)
where TTagger : AsyncTagger <TTag>
where TTag : ITag
{
var tagSpans = await GetTagSpans(File.ReadAllText(testFile), createTagger);
// Assert.
if (MustCreateTagSpans)
{
Assert.NotEmpty(tagSpans);
}
}
internal async Task <List <ITagSpan <TTag> > > GetTagSpans <TTagger, TTag>(string sourceCode, CreateTagger <TTagger, TTag> createTagger)
where TTagger : AsyncTagger <TTag>
where TTag : ITag
{
VisualStudioSourceTextFactory.Instance = Container.GetExportedValue <VisualStudioSourceTextFactory>();
var textBuffer = TextBufferUtility.CreateTextBuffer(Container, sourceCode);
var backgroundParser = new BackgroundParser(textBuffer);
var snapshot = textBuffer.CurrentSnapshot;
var tagger = createTagger(backgroundParser, textBuffer);
await tagger.InvalidateTags(snapshot, CancellationToken.None);
var tags = tagger.GetTags(new NormalizedSnapshotSpanCollection(new[]
{
new SnapshotSpan(snapshot, 0, snapshot.Length)
})).ToList();
backgroundParser.Dispose();
return(tags);
}
