private void DataTipTest(string input, string selectionRegex, string expectedDataTip)
{
var buffer = new MockTextBuffer(input, @"C:\fob.js", "Node.js");
var view = new MockTextView(buffer);
var classifierProvider = new NodejsClassifierProvider(new MockContentTypeRegistryService(NodejsConstants.Nodejs));
classifierProvider._classificationRegistry = new MockClassificationTypeRegistryService();
classifierProvider.GetClassifier(buffer);
var analyzer = new VsProjectAnalyzer();
buffer.AddProperty(typeof(VsProjectAnalyzer), analyzer);
analyzer.AddBuffer(buffer);
analyzer.WaitForCompleteAnalysis();
var m = Regex.Match(input, selectionRegex);
Assert.IsTrue(m.Success);
var startPos = m.Index;
var startLine = buffer.CurrentSnapshot.GetLineFromPosition(startPos);
var endPos = m.Index + m.Length;
var endLine = buffer.CurrentSnapshot.GetLineFromPosition(endPos);
var selectionSpan = new TextSpan {
iStartLine = startLine.LineNumber,
iStartIndex = startPos - startLine.Start.Position,
iEndLine = endLine.LineNumber,
iEndIndex = endPos - endLine.Start.Position
};
var dataTipSpan = DataTipTextViewFilter.GetDataTipSpan(view, selectionSpan);
if (expectedDataTip == null)
{
Assert.IsNull(dataTipSpan);
return;
}
Assert.IsNotNull(dataTipSpan);
var actualSpan = dataTipSpan.Value;
startPos = input.IndexOf(expectedDataTip);
Assert.AreNotEqual(-1, startPos);
startLine = buffer.CurrentSnapshot.GetLineFromPosition(startPos);
endPos = startPos + expectedDataTip.Length;
endLine = buffer.CurrentSnapshot.GetLineFromPosition(endPos);
var expectedSpan = new TextSpan {
iStartLine = startLine.LineNumber,
iStartIndex = startPos - startLine.Start.Position,
iEndLine = endLine.LineNumber,
iEndIndex = endPos - endLine.Start.Position
};
// TextSpan doesn't override ToString, so test output is unusable in case of failure when comparing
// two spans directly - use an anonymous type instead to produce pretty output.
Assert.AreEqual(
new { expectedSpan.iStartLine, expectedSpan.iStartIndex, expectedSpan.iEndLine, expectedSpan.iEndIndex },
new { actualSpan.iStartLine, actualSpan.iStartIndex, actualSpan.iEndLine, actualSpan.iEndIndex });
}