public async Task NoPdbFoundReturnsNull()
        {
            var source = @"
public class C
{
    public event System.EventHandler [|E|] { add { } remove { } }
}";

            await RunTestAsync(async path =>
            {
                MarkupTestFile.GetSpan(source, out var metadataSource, out var expectedSpan);

                var(project, symbol) = await CompileAndFindSymbolAsync(path, Location.OnDisk, Location.OnDisk, metadataSource, c => c.GetMember("C.E"));

                // Move the PDB to a path that only our fake debugger service knows about
                var pdbFilePath = Path.Combine(path, "SourceLink.pdb");
                File.Move(GetPdbPath(path), pdbFilePath);

                var sourceLinkService = new TestSourceLinkService(pdbFilePath: null);
                var service           = new PdbFileLocatorService(sourceLinkService, logger: null);

                using var result = await service.GetDocumentDebugInfoReaderAsync(GetDllPath(path), useDefaultSymbolServers: false, new TelemetryMessage(CancellationToken.None), CancellationToken.None);

                Assert.Null(result);
            });
        }
        public async Task ReturnsSourceFileFromSourceLink()
        {
            var source = @"
public class C
{
    public event System.EventHandler [|E|] { add { } remove { } }
}";

            await RunTestAsync(async path =>
            {
                MarkupTestFile.GetSpan(source, out var metadataSource, out var expectedSpan);

                var(project, symbol) = await CompileAndFindSymbolAsync(path, Location.OnDisk, Location.OnDisk, metadataSource, c => c.GetMember("C.E"));

                // Move the source file to a path that only our fake debugger service knows about
                var sourceFilePath = Path.Combine(path, "SourceLink.cs");
                File.Move(GetSourceFilePath(path), sourceFilePath);

                var sourceLinkService = new TestSourceLinkService(sourceFilePath: sourceFilePath);
                var service           = new PdbSourceDocumentLoaderService(sourceLinkService);

                using var hash = SHA256.Create();
                var fileHash   = hash.ComputeHash(File.ReadAllBytes(sourceFilePath));

                var sourceDocument = new SourceDocument("goo.cs", Text.SourceHashAlgorithm.Sha256, fileHash.ToImmutableArray(), null, "https://sourcelink");
                var result         = await service.LoadSourceDocumentAsync(path, sourceDocument, Encoding.UTF8, logger: null, CancellationToken.None);

                Assert.NotNull(result);
                Assert.Equal(sourceFilePath, result !.FilePath);
            });
        }
        public async Task DoesntReadNonPortablePdbs()
        {
            var source = @"
public class C
{
    public event System.EventHandler [|E|] { add { } remove { } }
}";

            await RunTestAsync(async path =>
            {
                MarkupTestFile.GetSpan(source, out var metadataSource, out var expectedSpan);

                // Ideally we don't want to pass in true for windowsPdb here, and this is supposed to test that the service ignores non-portable PDBs when the debugger
                // tells us they're not portable, but the debugger has a bug at the moment.
                var(project, symbol) = await CompileAndFindSymbolAsync(path, Location.OnDisk, Location.OnDisk, metadataSource, c => c.GetMember("C.E"), windowsPdb: true);

                // Move the PDB to a path that only our fake debugger service knows about
                var pdbFilePath = Path.Combine(path, "SourceLink.pdb");
                File.Move(GetPdbPath(path), pdbFilePath);

                var sourceLinkService = new TestSourceLinkService(pdbFilePath);
                var service           = new PdbFileLocatorService(sourceLinkService, logger: null);

                using var result = await service.GetDocumentDebugInfoReaderAsync(GetDllPath(path), useDefaultSymbolServers: false, new TelemetryMessage(CancellationToken.None), CancellationToken.None);

                Assert.Null(result);
            });
        }
        public async Task NoUrlFoundReturnsNull()
        {
            var source = @"
public class C
{
    public event System.EventHandler [|E|] { add { } remove { } }
}";

            await RunTestAsync(async path =>
            {
                MarkupTestFile.GetSpan(source, out var metadataSource, out var expectedSpan);

                var(project, symbol) = await CompileAndFindSymbolAsync(path, Location.OnDisk, Location.OnDisk, metadataSource, c => c.GetMember("C.E"));

                // Move the source file to a path that only our fake debugger service knows about
                var sourceFilePath = Path.Combine(path, "SourceLink.cs");
                File.Move(GetSourceFilePath(path), sourceFilePath);

                var sourceLinkService = new TestSourceLinkService(sourceFilePath: sourceFilePath);
                var service           = new PdbSourceDocumentLoaderService(sourceLinkService);

                var sourceDocument = new SourceDocument("goo.cs", Text.SourceHashAlgorithm.None, default, null, SourceLinkUrl: null);