Add integration tests for Proof Chain and Reachability workflows
- Implement ProofChainTestFixture for PostgreSQL-backed integration tests. - Create StellaOps.Integration.ProofChain project with necessary dependencies. - Add ReachabilityIntegrationTests to validate call graph extraction and reachability analysis. - Introduce ReachabilityTestFixture for managing corpus and fixture paths. - Establish StellaOps.Integration.Reachability project with required references. - Develop UnknownsWorkflowTests to cover the unknowns lifecycle: detection, ranking, escalation, and resolution. - Create StellaOps.Integration.Unknowns project with dependencies for unknowns workflow.
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StellaOps Bot
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// -----------------------------------------------------------------------------
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// ReachabilityIntegrationTests.cs
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// Sprint: SPRINT_3500_0004_0003_integration_tests_corpus
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// Task: T2 - Reachability Integration Tests
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// Description: End-to-end tests for call graph extraction and reachability analysis
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// -----------------------------------------------------------------------------
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using System.Text.Json;
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using FluentAssertions;
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using Xunit;
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namespace StellaOps.Integration.Reachability;
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/// <summary>
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/// End-to-end integration tests for reachability workflow.
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/// Tests: call graph extraction → entrypoint discovery → reachability analysis
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/// → explanation output → graph attestation signing.
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/// </summary>
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public class ReachabilityIntegrationTests : IClassFixture<ReachabilityTestFixture>
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{
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private readonly ReachabilityTestFixture _fixture;
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private static readonly JsonSerializerOptions JsonOptions = new()
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{
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PropertyNameCaseInsensitive = true
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};
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public ReachabilityIntegrationTests(ReachabilityTestFixture fixture)
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{
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_fixture = fixture;
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}
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#region T2-AC1: Test .NET call graph extraction
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[Fact]
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public async Task DotNetCallGraph_ExtractsNodes_FromCorpusFixture()
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{
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// Arrange
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var corpusPath = _fixture.GetCorpusPath("dotnet");
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var callGraphPath = Path.Combine(corpusPath, "callgraph.static.json");
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// Act - Load and parse the call graph
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var callGraphJson = await File.ReadAllTextAsync(callGraphPath);
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var callGraph = JsonSerializer.Deserialize<CallGraphModel>(callGraphJson, JsonOptions);
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// Assert
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callGraph.Should().NotBeNull();
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callGraph!.Nodes.Should().NotBeEmpty();
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callGraph.Edges.Should().NotBeEmpty();
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callGraph.Nodes.Should().Contain(n => n.IsEntrypoint == true);
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}
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[Fact]
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public async Task DotNetCallGraph_IdentifiesEntrypoints_ForKestrelApp()
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{
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// Arrange
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var corpusPath = _fixture.GetCorpusPath("dotnet");
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var callGraphPath = Path.Combine(corpusPath, "callgraph.static.json");
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var callGraphJson = await File.ReadAllTextAsync(callGraphPath);
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var callGraph = JsonSerializer.Deserialize<CallGraphModel>(callGraphJson, JsonOptions);
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// Act
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var entrypoints = callGraph!.Nodes.Where(n => n.IsEntrypoint == true).ToList();
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// Assert
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entrypoints.Should().NotBeEmpty("Kestrel apps should have HTTP entrypoints");
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entrypoints.Should().Contain(e =>
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e.Symbol?.Contains("Controller", StringComparison.OrdinalIgnoreCase) == true ||
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e.Symbol?.Contains("Endpoint", StringComparison.OrdinalIgnoreCase) == true ||
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e.Symbol?.Contains("Handler", StringComparison.OrdinalIgnoreCase) == true);
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}
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#endregion
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#region T2-AC2: Test Java call graph extraction
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[Fact]
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public async Task JavaCallGraph_ExtractsNodes_FromCorpusFixture()
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{
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// Arrange - Java corpus may not exist, skip if missing
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var corpusPath = _fixture.GetCorpusPath("java");
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var callGraphPath = Path.Combine(corpusPath, "callgraph.static.json");
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if (!File.Exists(callGraphPath))
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{
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// Skip test if Java corpus not available
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return;
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}
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// Act
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var callGraphJson = await File.ReadAllTextAsync(callGraphPath);
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var callGraph = JsonSerializer.Deserialize<CallGraphModel>(callGraphJson, JsonOptions);
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// Assert
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callGraph.Should().NotBeNull();
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callGraph!.Nodes.Should().NotBeEmpty();
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}
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#endregion
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#region T2-AC3: Test entrypoint discovery
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[Fact]
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public async Task EntrypointDiscovery_FindsWebEntrypoints_InDotNetCorpus()
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{
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// Arrange
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var corpusPath = _fixture.GetCorpusPath("dotnet");
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var callGraphPath = Path.Combine(corpusPath, "callgraph.static.json");
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var callGraphJson = await File.ReadAllTextAsync(callGraphPath);
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var callGraph = JsonSerializer.Deserialize<CallGraphModel>(callGraphJson, JsonOptions);
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// Act
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var entrypoints = callGraph!.Nodes.Where(n => n.IsEntrypoint == true).ToList();
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var webEntrypoints = entrypoints.Where(e =>
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e.Symbol?.Contains("Get", StringComparison.OrdinalIgnoreCase) == true ||
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e.Symbol?.Contains("Post", StringComparison.OrdinalIgnoreCase) == true ||
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e.Symbol?.Contains("Handle", StringComparison.OrdinalIgnoreCase) == true).ToList();
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// Assert
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webEntrypoints.Should().NotBeEmpty("Web applications should have HTTP handler entrypoints");
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}
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#endregion
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#region T2-AC4: Test reachability computation
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[Fact]
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public async Task ReachabilityComputation_FindsPath_ToVulnerableFunction()
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{
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// Arrange
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var corpusPath = _fixture.GetCorpusPath("dotnet");
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var groundTruthPath = Path.Combine(corpusPath, "ground-truth.json");
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var groundTruthJson = await File.ReadAllTextAsync(groundTruthPath);
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var groundTruth = JsonSerializer.Deserialize<GroundTruthModel>(groundTruthJson, JsonOptions);
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// Assert
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groundTruth.Should().NotBeNull();
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groundTruth!.Paths.Should().NotBeEmpty("Ground truth should contain reachability paths");
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// Verify at least one path is marked as reachable
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var reachablePaths = groundTruth.Paths.Where(p => p.Reachable).ToList();
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reachablePaths.Should().NotBeEmpty("At least one vulnerability should be reachable");
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}
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[Fact]
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public async Task ReachabilityComputation_DistinguishesReachableFromUnreachable()
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{
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// Arrange
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var corpusPath = _fixture.GetCorpusPath("dotnet");
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var groundTruthPath = Path.Combine(corpusPath, "ground-truth.json");
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var groundTruthJson = await File.ReadAllTextAsync(groundTruthPath);
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var groundTruth = JsonSerializer.Deserialize<GroundTruthModel>(groundTruthJson, JsonOptions);
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// Assert
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groundTruth.Should().NotBeNull();
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// Check that reachable paths have non-empty call chains
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foreach (var path in groundTruth!.Paths.Where(p => p.Reachable))
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{
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path.CallChain.Should().NotBeEmpty(
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"Reachable paths must have call chain evidence");
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}
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}
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#endregion
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#region T2-AC5: Test reachability explanation output
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[Fact]
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public async Task ReachabilityExplanation_ContainsCallPath_ForReachableVuln()
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{
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// Arrange
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var corpusPath = _fixture.GetCorpusPath("dotnet");
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var groundTruthPath = Path.Combine(corpusPath, "ground-truth.json");
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var groundTruthJson = await File.ReadAllTextAsync(groundTruthPath);
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var groundTruth = JsonSerializer.Deserialize<GroundTruthModel>(groundTruthJson, JsonOptions);
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// Act
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var reachablePath = groundTruth!.Paths.FirstOrDefault(p => p.Reachable);
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// Assert
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reachablePath.Should().NotBeNull("Should have at least one reachable path");
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reachablePath!.CallChain.Should().HaveCountGreaterThan(1,
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"Call chain should show path from entrypoint to vulnerable code");
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reachablePath.Confidence.Should().BeGreaterThan(0,
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"Reachable paths should have confidence > 0");
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}
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[Fact]
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public async Task ReachabilityExplanation_IncludesConfidenceTier()
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{
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// Arrange
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var corpusPath = _fixture.GetCorpusPath("dotnet");
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var groundTruthPath = Path.Combine(corpusPath, "ground-truth.json");
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var groundTruthJson = await File.ReadAllTextAsync(groundTruthPath);
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var groundTruth = JsonSerializer.Deserialize<GroundTruthModel>(groundTruthJson, JsonOptions);
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// Assert
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foreach (var path in groundTruth!.Paths.Where(p => p.Reachable))
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{
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path.Tier.Should().NotBeNullOrEmpty(
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"Reachable paths should have a confidence tier (confirmed/likely/present)");
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path.Tier.Should().BeOneOf("confirmed", "likely", "present",
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"Tier should be one of the defined values");
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}
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}
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#endregion
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#region T2-AC6: Test graph attestation signing
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[Fact]
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public async Task GraphAttestation_HasValidVexFile_InCorpus()
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{
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// Arrange
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var corpusPath = _fixture.GetCorpusPath("dotnet");
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var vexPath = Path.Combine(corpusPath, "vex.openvex.json");
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// Act
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var vexExists = File.Exists(vexPath);
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// Assert
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vexExists.Should().BeTrue("Corpus should include VEX attestation file");
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if (vexExists)
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{
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var vexJson = await File.ReadAllTextAsync(vexPath);
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var vex = JsonSerializer.Deserialize<VexDocument>(vexJson, JsonOptions);
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vex.Should().NotBeNull();
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vex!.Context.Should().Contain("openvex");
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vex.Statements.Should().NotBeEmpty();
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}
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}
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#endregion
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#region DTOs
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private sealed record CallGraphModel(
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IReadOnlyList<CallGraphNode> Nodes,
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IReadOnlyList<CallGraphEdge> Edges,
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string? Version,
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string? Language);
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private sealed record CallGraphNode(
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string NodeId,
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string? Symbol,
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string? File,
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int? Line,
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bool? IsEntrypoint,
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bool? IsSink);
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private sealed record CallGraphEdge(
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string SourceId,
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string TargetId,
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string? CallKind);
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private sealed record GroundTruthModel(
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string CveId,
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string? Language,
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IReadOnlyList<ReachabilityPath> Paths);
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private sealed record ReachabilityPath(
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string VulnerableFunction,
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bool Reachable,
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IReadOnlyList<string> CallChain,
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double Confidence,
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string? Tier);
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private sealed record VexDocument(
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string Context,
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IReadOnlyList<VexStatement> Statements);
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private sealed record VexStatement(
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string Vulnerability,
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string Status,
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string? Justification);
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#endregion
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}
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