public void GetClassificationSpansFromSnapShot(string pattern, string classification)
        {
            Settings.Load();
            var mockServiceProvider = new Mock<IServiceProvider>();
            var mockClassificationTypeRegistryService = new Mock<IClassificationTypeRegistryService>();
            mockClassificationTypeRegistryService
                .Setup(c => c.GetClassificationType(classification))
                .Returns(new Mock<IClassificationType>().Object);

            var outputClassifier = new OutputClassifier();
            outputClassifier.Initialize(mockClassificationTypeRegistryService.Object, null);
            var mockSnapshot = new Mock<ITextSnapshot>();
            var mockSnapshotLine = new Mock<ITextSnapshotLine>();

            mockSnapshot.SetupGet(s => s.Length).Returns(1);
            mockSnapshot.Setup(s => s.GetLineFromPosition(0)).Returns(mockSnapshotLine.Object);
            mockSnapshot.Setup(s => s.GetLineFromLineNumber(0)).Returns(mockSnapshotLine.Object);
            mockSnapshot.Setup(s => s.GetText(It.IsAny<Span>())).Returns(pattern);

            mockSnapshotLine.SetupGet(l => l.Start).Returns(new SnapshotPoint(mockSnapshot.Object, 0));
            mockSnapshotLine.SetupGet(l => l.Length).Returns(1);
            mockSnapshotLine.SetupGet(l => l.LineNumber).Returns(0);
            mockSnapshotLine.SetupGet(l => l.Snapshot).Returns(mockSnapshot.Object);

            var snapshotSpan = new SnapshotSpan(mockSnapshot.Object, 0, 1);
            var spans = outputClassifier.GetClassificationSpans(snapshotSpan);
            spans.Should().NotBeEmpty();
            mockSnapshot.VerifyAll();
            mockSnapshotLine.VerifyAll();
            mockServiceProvider.VerifyAll();
            mockClassificationTypeRegistryService.VerifyAll();
        }
 public void GetClassificationSpansZeroLengthSnapShot()
 {
     var mockServiceProvider = new Mock<IServiceProvider>();
     var mockClassificationTypeRegistryService = new Mock<IClassificationTypeRegistryService>();
     var outputClassifier = new OutputClassifier();
     outputClassifier.Initialize(mockClassificationTypeRegistryService.Object, null);
     var mockSnapshot = new Mock<ITextSnapshot>();
     mockSnapshot.SetupGet(s => s.Length).Returns(0);
     var snapshotSpan = new SnapshotSpan(mockSnapshot.Object, 0, 0);
     outputClassifier.GetClassificationSpans(snapshotSpan).Should().BeEmpty();
     mockSnapshot.VerifyAll();
     mockServiceProvider.VerifyAll();
     mockClassificationTypeRegistryService.VerifyAll();
 }
 public void GetClassificationSpansNullSnapShot()
 {
     var outputClassifier = new OutputClassifier();
     outputClassifier.Initialize(null, null);
     outputClassifier.GetClassificationSpans(new SnapshotSpan()).Should().BeEmpty();
 }