public async Task CanDoTagging(string testFile)
{
// Arrange.
var sourceCode = File.ReadAllText(testFile);
var textBuffer = TextBufferUtility.CreateTextBuffer(Container, sourceCode);
var backgroundParser = new BackgroundParser(textBuffer);
var snapshot = textBuffer.CurrentSnapshot;
var syntaxTree = snapshot.GetSyntaxTree(CancellationToken.None);
var snapshotSyntaxTree = new SnapshotSyntaxTree(snapshot, syntaxTree);
var tagger = CreateTagger(backgroundParser, snapshot);
// Act.
await tagger.InvalidateTags(snapshotSyntaxTree, CancellationToken.None);
var tagSpans = tagger.GetTags(new NormalizedSnapshotSpanCollection(new[]
{
new SnapshotSpan(snapshot, 0, snapshot.Length)
})).ToList();
// Assert.
if (MustCreateTagSpans)
{
Assert.That(tagSpans.Any());
}
backgroundParser.Dispose();
}
protected virtual void Dispose(bool disposing)
{
if (disposing)
{
_parser.Dispose();
}
}
internal async Task <List <ITagSpan <TTag> > > GetTagSpans <TTagger, TTag>(string sourceCode, CreateTagger <TTagger, TTag> createTagger)
where TTagger : AsyncTagger <TTag>
where TTag : ITag
{
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);
}
