public void TryGetFromBuffer_PrefersVisualStudioRazorParserIfRazorEditorParserIsAvailable()
{
// Arrange
var properties = new PropertyCollection();
var expectedCodeDocument = TestRazorCodeDocument.Create("Hello World");
var parser = new VisualStudioRazorParser(expectedCodeDocument);
properties.AddProperty(typeof(VisualStudioRazorParser), parser);
var unexpectedCodeDocument = TestRazorCodeDocument.Create("Unexpected");
var legacyParser = new RazorEditorParser(unexpectedCodeDocument);
properties.AddProperty(typeof(RazorEditorParser), legacyParser);
var textBuffer = new Mock <ITextBuffer>();
textBuffer.Setup(buffer => buffer.Properties)
.Returns(properties);
var provider = new DefaultVisualStudioCodeDocumentProvider();
// Act
var result = provider.TryGetFromBuffer(textBuffer.Object, out var codeDocument);
// Assert
Assert.True(result);
Assert.Same(expectedCodeDocument, codeDocument);
}
// [Fact] Silent skip to avoid warnings. Skipping until we can control the parser more directly.
private void BufferChangeStartsFullReparseIfChangeOverlapsMultipleSpans()
{
// Arrange
var original = new StringTextSnapshot("Foo @bar Baz");
var testBuffer = new TestTextBuffer(original);
using (var parser = new VisualStudioRazorParser(Dispatcher, testBuffer, CreateTemplateEngine(), TestLinePragmaFileName, new TestCompletionBroker()))
{
parser._idleTimer.Interval = 100;
var changed = new StringTextSnapshot("Foo @bap Daz");
var edit = new TestEdit(7, 3, original, 3, changed, "p D");
var parseComplete = new ManualResetEventSlim();
var parseCount = 0;
parser.DocumentStructureChanged += (s, a) =>
{
Interlocked.Increment(ref parseCount);
parseComplete.Set();
};
// Act - 1
testBuffer.ApplyEdit(edit);
DoWithTimeoutIfNotDebugging(parseComplete.Wait); // Wait for the parse to finish
// Assert - 1
Assert.Equal(1, parseCount);
parseComplete.Reset();
// Act - 2
testBuffer.ApplyEdit(edit);
// Assert - 2
DoWithTimeoutIfNotDebugging(parseComplete.Wait);
Assert.Equal(2, parseCount);
}
}
private static DefaultRazorEditorFactoryService CreateFactoryService(
VisualStudioDocumentTracker documentTracker = null,
VisualStudioRazorParser parser = null,
BraceSmartIndenter smartIndenter = null)
{
documentTracker = documentTracker ?? Mock.Of <VisualStudioDocumentTracker>();
parser = parser ?? Mock.Of <VisualStudioRazorParser>();
smartIndenter = smartIndenter ?? Mock.Of <BraceSmartIndenter>();
var documentTrackerFactory = Mock.Of <VisualStudioDocumentTrackerFactory>(f => f.Create(It.IsAny <ITextBuffer>()) == documentTracker);
var parserFactory = Mock.Of <VisualStudioRazorParserFactory>(f => f.Create(It.IsAny <VisualStudioDocumentTracker>()) == parser);
var smartIndenterFactory = Mock.Of <BraceSmartIndenterFactory>(f => f.Create(It.IsAny <VisualStudioDocumentTracker>()) == smartIndenter);
var factoryService = new DefaultRazorEditorFactoryService(documentTrackerFactory, parserFactory, smartIndenterFactory);
return(factoryService);
}
public override bool TryGetParser(ITextBuffer textBuffer, out VisualStudioRazorParser parser)
{
if (textBuffer == null)
{
throw new ArgumentNullException(nameof(textBuffer));
}
if (!textBuffer.IsRazorBuffer())
{
parser = null;
return(false);
}
EnsureTextBufferInitialized(textBuffer);
if (!textBuffer.Properties.TryGetProperty(typeof(VisualStudioRazorParser), out parser))
{
Debug.Fail("Parser should have been stored on the text buffer during initialization.");
return(false);
}
return(true);
}
public TestParserManager(VisualStudioRazorParser parser)
{
_parserComplete = new ManualResetEventSlim();
_reparseComplete = new ManualResetEventSlim();
_testBuffer = (TestTextBuffer)parser._textBuffer;
ParseCount = 0;
// Change idle delay to be huge in order to enable us to take control of when idle methods fire.
parser._idleTimer.Interval = TimeSpan.FromMinutes(2).TotalMilliseconds;
_parser = parser;
parser.DocumentStructureChanged += (sender, args) =>
{
Interlocked.Increment(ref ParseCount);
_parserComplete.Set();
if (args.SourceChange == null)
{
// Reparse occurred
_reparseComplete.Set();
}
CurrentSyntaxTree = args.CodeDocument.GetSyntaxTree();
};
}
private TestParserManager CreateParserManager(ITextSnapshot originalSnapshot, int idleDelay = 50)
{
var parser = new VisualStudioRazorParser(Dispatcher, new TestTextBuffer(originalSnapshot), CreateTemplateEngine(), TestLinePragmaFileName, new TestCompletionBroker());
return(new TestParserManager(parser));
}
