protected async Task TestBraceHighlightingAsync(
string markup,
ParseOptions options = null,
bool swapAnglesWithBrackets = false
)
{
MarkupTestFile.GetPositionAndSpans(
markup,
out var text,
out int cursorPosition,
out var expectedSpans
);
// needed because markup test file can't support [|[|] to indicate selecting
// just an open bracket.
if (swapAnglesWithBrackets)
{
text = text.Replace("<", "[").Replace(">", "]");
}
using (var workspace = CreateWorkspace(text, options))
{
WpfTestRunner.RequireWpfFact(
$"{nameof(AbstractBraceHighlightingTests)}.{nameof(TestBraceHighlightingAsync)} creates asynchronous taggers"
);
var provider = new BraceHighlightingViewTaggerProvider(
workspace.GetService <IThreadingContext>(),
GetBraceMatchingService(workspace),
workspace.GetService <IForegroundNotificationService>(),
AsynchronousOperationListenerProvider.NullProvider
);
var testDocument = workspace.Documents.First();
var buffer = testDocument.GetTextBuffer();
var document = buffer.CurrentSnapshot
.GetRelatedDocumentsWithChanges()
.FirstOrDefault();
var context = new TaggerContext <BraceHighlightTag>(
document,
buffer.CurrentSnapshot,
new SnapshotPoint(buffer.CurrentSnapshot, cursorPosition)
);
await provider.GetTestAccessor().ProduceTagsAsync(context);
var expectedHighlights = expectedSpans
.Select(ts => ts.ToSpan())
.OrderBy(s => s.Start)
.ToList();
var actualHighlights = context.tagSpans
.Select(ts => ts.Span.Span)
.OrderBy(s => s.Start)
.ToList();
Assert.Equal(expectedHighlights, actualHighlights);
}
}
private static async Task <IEnumerable <ITagSpan <BraceHighlightTag> > > ProduceTagsAsync(
TestWorkspace workspace,
ITextBuffer buffer,
int position)
{
var producer = new BraceHighlightingViewTaggerProvider(
workspace.ExportProvider.GetExportedValue <IThreadingContext>(),
workspace.GetService <IBraceMatchingService>(),
AsynchronousOperationListenerProvider.NullProvider);
var context = new TaggerContext <BraceHighlightTag>(
buffer.CurrentSnapshot.GetRelatedDocumentsWithChanges().FirstOrDefault(),
buffer.CurrentSnapshot, new SnapshotPoint(buffer.CurrentSnapshot, position));
await producer.GetTestAccessor().ProduceTagsAsync(context);
return(context.tagSpans);
}