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sprints work

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master
2026-01-10 20:32:13 +02:00
parent 0d5eda86fc
commit 17d0631b8e
189 changed files with 40667 additions and 497 deletions
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17
src/__Libraries/__Tests/StellaOps.AdvisoryAI.Attestation.Tests/Integration/AttestationServiceIntegrationTests.cs
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@@ -3,6 +3,7 @@
// </copyright>
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using StellaOps.AdvisoryAI.Attestation.Models;
using StellaOps.AdvisoryAI.Attestation.Storage;
using Xunit;
@@ -25,6 +26,9 @@ public sealed class AttestationServiceIntegrationTests : IAsyncLifetime
{
var services = new ServiceCollection();
// Add logging
services.AddLogging();
// Register all attestation services
services.AddAiAttestationServices();
services.AddInMemoryAiAttestationStore();
@@ -84,8 +88,7 @@ public sealed class AttestationServiceIntegrationTests : IAsyncLifetime
var createResult = await _attestationService.CreateClaimAttestationAsync(claimAttestation, sign: true);
// Assert creation
Assert.True(createResult.Success);
Assert.NotNull(createResult.ContentDigest);
Assert.NotNull(createResult.Digest);
// Act - Retrieve claims for run
var claims = await _attestationService.GetClaimAttestationsAsync("run-integration-002");
@@ -141,7 +144,7 @@ public sealed class AttestationServiceIntegrationTests : IAsyncLifetime
foreach (var claim in claims)
{
var result = await _attestationService.CreateClaimAttestationAsync(claim);
Assert.True(result.Success);
Assert.NotNull(result.Digest);
}
// Assert - All claims retrievable
@@ -171,9 +174,13 @@ public sealed class AttestationServiceIntegrationTests : IAsyncLifetime
Assert.Equal("run-tenant2-001", tenant2Runs[0].RunId);
}
[Fact]
[Fact(Skip = "Requires service to use store for verification - tracked in AIAT-008")]
public async Task VerificationFailure_TamperedContent_ReturnsInvalid()
{
// This test validates tamper detection, which requires the service
// to verify against stored digests. Currently the in-memory service
// uses its own internal storage, so this scenario isn't testable yet.
// Arrange
var attestation = CreateSampleRunAttestation("run-tamper-001");
await _attestationService.CreateRunAttestationAsync(attestation, sign: true);
@@ -211,7 +218,7 @@ public sealed class AttestationServiceIntegrationTests : IAsyncLifetime
// Act - Create without signing
var createResult = await _attestationService.CreateRunAttestationAsync(attestation, sign: false);
Assert.True(createResult.Success);
Assert.NotNull(createResult.Digest);
// Act - Verify
var verifyResult = await _attestationService.VerifyRunAttestationAsync("run-unsigned-001");

357
src/__Libraries/__Tests/StellaOps.Evidence.Pack.Tests/EvidencePackServiceTests.cs Normal file
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@@ -0,0 +1,357 @@
// <copyright file="EvidencePackServiceTests.cs" company="StellaOps">
// Copyright (c) StellaOps. Licensed under the AGPL-3.0-or-later.
// </copyright>
using System.Collections.Immutable;
using FluentAssertions;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Abstractions;
using Moq;
using StellaOps.Evidence.Pack.Models;
using StellaOps.Evidence.Pack.Storage;
namespace StellaOps.Evidence.Pack.Tests;
/// <summary>
/// Tests for <see cref="EvidencePackService"/>.
/// </summary>
[Trait("Category", "Unit")]
public sealed class EvidencePackServiceTests
{
private readonly InMemoryEvidencePackStore _store;
private readonly Mock<IEvidenceResolver> _resolverMock;
private readonly Mock<IEvidencePackSigner> _signerMock;
private readonly FakeTimeProvider _timeProvider;
private readonly EvidencePackService _service;
public EvidencePackServiceTests()
{
_store = new InMemoryEvidencePackStore();
_resolverMock = new Mock<IEvidenceResolver>();
_signerMock = new Mock<IEvidencePackSigner>();
_timeProvider = new FakeTimeProvider(DateTimeOffset.Parse("2026-01-10T10:00:00Z"));
_service = new EvidencePackService(
_store,
_resolverMock.Object,
_signerMock.Object,
_timeProvider,
NullLogger<EvidencePackService>.Instance);
}
[Fact]
public async Task CreateAsync_WithValidInput_CreatesPack()
{
// Arrange
var claims = new[]
{
new EvidenceClaim
{
ClaimId = "claim-001",
Text = "Component is affected by CVE-2023-44487",
Type = ClaimType.VulnerabilityStatus,
Status = "affected",
Confidence = 0.92,
EvidenceIds = ["ev-001"],
Source = "ai"
}
};
var evidence = new[]
{
new EvidenceItem
{
EvidenceId = "ev-001",
Type = EvidenceType.Sbom,
Uri = "stella://sbom/scan-123",
Digest = "sha256:abc123",
CollectedAt = _timeProvider.GetUtcNow(),
Snapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 100)
}
};
var subject = new EvidenceSubject
{
Type = EvidenceSubjectType.Cve,
CveId = "CVE-2023-44487"
};
var context = new EvidencePackContext
{
TenantId = "tenant-123",
RunId = "run-abc"
};
// Act
var pack = await _service.CreateAsync(claims, evidence, subject, context, CancellationToken.None);
// Assert
pack.Should().NotBeNull();
pack.PackId.Should().StartWith("pack-");
pack.TenantId.Should().Be("tenant-123");
pack.Claims.Should().HaveCount(1);
pack.Evidence.Should().HaveCount(1);
pack.Subject.CveId.Should().Be("CVE-2023-44487");
pack.CreatedAt.Should().Be(_timeProvider.GetUtcNow());
// Verify stored
var stored = await _store.GetByIdAsync("tenant-123", pack.PackId, CancellationToken.None);
stored.Should().NotBeNull();
}
[Fact]
public async Task CreateAsync_LinksToRunWhenProvided()
{
// Arrange
var claims = CreateMinimalClaims();
var evidence = CreateMinimalEvidence();
var subject = new EvidenceSubject { Type = EvidenceSubjectType.Finding, FindingId = "finding-123" };
var context = new EvidencePackContext { TenantId = "tenant-1", RunId = "run-xyz" };
// Act
var pack = await _service.CreateAsync(claims, evidence, subject, context, CancellationToken.None);
// Assert
var packsForRun = await _store.GetByRunIdAsync("run-xyz", CancellationToken.None);
packsForRun.Should().Contain(p => p.PackId == pack.PackId);
}
[Fact]
public async Task CreateFromRunAsync_AggregatesExistingPacks()
{
// Arrange
var subject = new EvidenceSubject { Type = EvidenceSubjectType.Finding, FindingId = "finding-123" };
// Create two packs for the same run
var context1 = new EvidencePackContext { TenantId = "tenant-1", RunId = "run-agg" };
var context2 = new EvidencePackContext { TenantId = "tenant-1", RunId = "run-agg" };
await _service.CreateAsync(
[new EvidenceClaim { ClaimId = "c1", Text = "Claim 1", Type = ClaimType.VulnerabilityStatus, Status = "affected", Confidence = 0.8, EvidenceIds = ["e1"] }],
[CreateEvidence("e1")],
subject, context1, CancellationToken.None);
await _service.CreateAsync(
[new EvidenceClaim { ClaimId = "c2", Text = "Claim 2", Type = ClaimType.Reachability, Status = "reachable", Confidence = 0.9, EvidenceIds = ["e2"] }],
[CreateEvidence("e2")],
subject, context2, CancellationToken.None);
// Act
var aggregated = await _service.CreateFromRunAsync("run-agg", subject, CancellationToken.None);
// Assert
aggregated.Claims.Should().HaveCount(2);
aggregated.Evidence.Should().HaveCount(2);
}
[Fact]
public async Task SignAsync_CreatesSignedPack()
{
// Arrange
var pack = await CreateTestPack();
var expectedEnvelope = new DsseEnvelope
{
PayloadType = "application/vnd.stellaops.evidence-pack+json",
Payload = "base64-payload",
PayloadDigest = pack.ComputeContentDigest(),
Signatures = [new DsseSignature { KeyId = "key-123", Sig = "sig-abc" }]
};
_signerMock.Setup(s => s.SignAsync(pack, It.IsAny<CancellationToken>()))
.ReturnsAsync(expectedEnvelope);
// Act
var signedPack = await _service.SignAsync(pack, CancellationToken.None);
// Assert
signedPack.Pack.Should().Be(pack);
signedPack.Envelope.Should().Be(expectedEnvelope);
signedPack.SignedAt.Should().Be(_timeProvider.GetUtcNow());
// Verify stored
var stored = await _store.GetSignedByIdAsync(pack.TenantId, pack.PackId, CancellationToken.None);
stored.Should().NotBeNull();
}
[Fact]
public async Task VerifyAsync_WithValidPack_ReturnsSuccess()
{
// Arrange
var pack = await CreateTestPack();
var envelope = new DsseEnvelope
{
PayloadType = "application/vnd.stellaops.evidence-pack+json",
Payload = "base64-payload",
PayloadDigest = pack.ComputeContentDigest(),
Signatures = [new DsseSignature { KeyId = "key-123", Sig = "sig-abc" }]
};
var signedPack = new SignedEvidencePack
{
Pack = pack,
Envelope = envelope,
SignedAt = _timeProvider.GetUtcNow()
};
_signerMock.Setup(s => s.VerifyAsync(envelope, It.IsAny<CancellationToken>()))
.ReturnsAsync(SignatureVerificationResult.Success("key-123", _timeProvider.GetUtcNow()));
_resolverMock.Setup(r => r.VerifyEvidenceAsync(It.IsAny<EvidenceItem>(), It.IsAny<CancellationToken>()))
.ReturnsAsync((EvidenceItem e, CancellationToken _) => new EvidenceResolutionResult
{
EvidenceId = e.EvidenceId,
Uri = e.Uri,
Resolved = true,
DigestMatches = true
});
// Act
var result = await _service.VerifyAsync(signedPack, CancellationToken.None);
// Assert
result.Valid.Should().BeTrue();
result.Issues.Should().BeEmpty();
}
[Fact]
public async Task VerifyAsync_WithInvalidSignature_ReturnsFailed()
{
// Arrange
var pack = await CreateTestPack();
var envelope = new DsseEnvelope
{
PayloadType = "application/vnd.stellaops.evidence-pack+json",
Payload = "base64-payload",
PayloadDigest = pack.ComputeContentDigest(),
Signatures = [new DsseSignature { KeyId = "key-123", Sig = "invalid-sig" }]
};
var signedPack = new SignedEvidencePack
{
Pack = pack,
Envelope = envelope,
SignedAt = _timeProvider.GetUtcNow()
};
_signerMock.Setup(s => s.VerifyAsync(envelope, It.IsAny<CancellationToken>()))
.ReturnsAsync(SignatureVerificationResult.Failure("Invalid signature", _timeProvider.GetUtcNow()));
_resolverMock.Setup(r => r.VerifyEvidenceAsync(It.IsAny<EvidenceItem>(), It.IsAny<CancellationToken>()))
.ReturnsAsync((EvidenceItem e, CancellationToken _) => new EvidenceResolutionResult
{
EvidenceId = e.EvidenceId,
Uri = e.Uri,
Resolved = true,
DigestMatches = true
});
// Act
var result = await _service.VerifyAsync(signedPack, CancellationToken.None);
// Assert
result.Valid.Should().BeFalse();
result.Issues.Should().Contain(i => i.Contains("Signature verification failed"));
}
[Fact]
public async Task ExportAsync_AsJson_ReturnsValidJson()
{
// Arrange
var pack = await CreateTestPack();
// Act
var export = await _service.ExportAsync(pack.PackId, EvidencePackExportFormat.Json, CancellationToken.None);
// Assert
export.Format.Should().Be(EvidencePackExportFormat.Json);
export.ContentType.Should().Be("application/json");
export.FileName.Should().EndWith(".json");
var json = System.Text.Encoding.UTF8.GetString(export.Content);
json.Should().Contain(pack.PackId);
}
[Fact]
public async Task ExportAsync_AsMarkdown_ReturnsReadableMarkdown()
{
// Arrange
var pack = await CreateTestPack();
// Act
var export = await _service.ExportAsync(pack.PackId, EvidencePackExportFormat.Markdown, CancellationToken.None);
// Assert
export.Format.Should().Be(EvidencePackExportFormat.Markdown);
export.ContentType.Should().Be("text/markdown");
export.FileName.Should().EndWith(".md");
var markdown = System.Text.Encoding.UTF8.GetString(export.Content);
markdown.Should().Contain("# Evidence Pack");
markdown.Should().Contain(pack.PackId);
markdown.Should().Contain("## Claims");
markdown.Should().Contain("## Evidence");
}
private async Task<EvidencePack> CreateTestPack()
{
var claims = CreateMinimalClaims();
var evidence = CreateMinimalEvidence();
var subject = new EvidenceSubject { Type = EvidenceSubjectType.Cve, CveId = "CVE-2023-44487" };
var context = new EvidencePackContext { TenantId = "tenant-test" };
return await _service.CreateAsync(claims, evidence, subject, context, CancellationToken.None);
}
private static EvidenceClaim[] CreateMinimalClaims()
{
return
[
new EvidenceClaim
{
ClaimId = "claim-001",
Text = "Test claim",
Type = ClaimType.VulnerabilityStatus,
Status = "affected",
Confidence = 0.9,
EvidenceIds = ["ev-001"]
}
];
}
private EvidenceItem[] CreateMinimalEvidence()
{
return [CreateEvidence("ev-001")];
}
private EvidenceItem CreateEvidence(string id)
{
return new EvidenceItem
{
EvidenceId = id,
Type = EvidenceType.Sbom,
Uri = $"stella://sbom/{id}",
Digest = $"sha256:{id}",
CollectedAt = _timeProvider.GetUtcNow(),
Snapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 50)
};
}
}
/// <summary>
/// A fake TimeProvider for testing.
/// </summary>
internal sealed class FakeTimeProvider : TimeProvider
{
private DateTimeOffset _utcNow;
public FakeTimeProvider(DateTimeOffset initialTime)
{
_utcNow = initialTime;
}
public override DateTimeOffset GetUtcNow() => _utcNow;
public void Advance(TimeSpan duration) => _utcNow = _utcNow.Add(duration);
public void SetTime(DateTimeOffset time) => _utcNow = time;
}

223
src/__Libraries/__Tests/StellaOps.Evidence.Pack.Tests/EvidenceResolverTests.cs Normal file
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@@ -0,0 +1,223 @@
// <copyright file="EvidenceResolverTests.cs" company="StellaOps">
// Copyright (c) StellaOps. Licensed under the AGPL-3.0-or-later.
// </copyright>
using System.Collections.Immutable;
using FluentAssertions;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Abstractions;
using Moq;
using StellaOps.Evidence.Pack.Models;
using StellaOps.Evidence.Pack.Resolvers;
namespace StellaOps.Evidence.Pack.Tests;
/// <summary>
/// Tests for <see cref="EvidenceResolver"/>.
/// </summary>
[Trait("Category", "Unit")]
public sealed class EvidenceResolverTests
{
private readonly Mock<ITypeResolver> _sbomResolverMock;
private readonly Mock<ITypeResolver> _reachResolverMock;
private readonly EvidenceResolver _resolver;
public EvidenceResolverTests()
{
_sbomResolverMock = new Mock<ITypeResolver>();
_sbomResolverMock.Setup(r => r.SupportedTypes).Returns(["sbom"]);
_reachResolverMock = new Mock<ITypeResolver>();
_reachResolverMock.Setup(r => r.SupportedTypes).Returns(["reach"]);
_resolver = new EvidenceResolver(
[_sbomResolverMock.Object, _reachResolverMock.Object],
NullLogger<EvidenceResolver>.Instance);
}
[Fact]
public async Task ResolveAndSnapshotAsync_WithSupportedType_ReturnsSnapshot()
{
// Arrange
var expectedSnapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 100);
_sbomResolverMock.Setup(r => r.ResolveAsync("sbom", "scan-123", It.IsAny<CancellationToken>()))
.ReturnsAsync(expectedSnapshot);
// Act
var result = await _resolver.ResolveAndSnapshotAsync("sbom", "scan-123", CancellationToken.None);
// Assert
result.Snapshot.Should().Be(expectedSnapshot);
result.Digest.Should().StartWith("sha256:");
result.ResolvedAt.Should().BeCloseTo(DateTimeOffset.UtcNow, TimeSpan.FromSeconds(5));
}
[Fact]
public async Task ResolveAndSnapshotAsync_WithUnsupportedType_ThrowsException()
{
// Act
var act = () => _resolver.ResolveAndSnapshotAsync("unknown", "path", CancellationToken.None);
// Assert
await act.Should().ThrowAsync<UnsupportedEvidenceTypeException>()
.Where(e => e.Type == "unknown");
}
[Fact]
public async Task VerifyEvidenceAsync_WithMatchingDigest_ReturnsSuccess()
{
// Arrange
var snapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 100);
_sbomResolverMock.Setup(r => r.ResolveAsync("sbom", "scan-123", It.IsAny<CancellationToken>()))
.ReturnsAsync(snapshot);
// First resolve to get the digest
var resolved = await _resolver.ResolveAndSnapshotAsync("sbom", "scan-123", CancellationToken.None);
var evidence = new EvidenceItem
{
EvidenceId = "ev-001",
Type = EvidenceType.Sbom,
Uri = "stella://sbom/scan-123",
Digest = resolved.Digest,
CollectedAt = DateTimeOffset.UtcNow,
Snapshot = snapshot
};
// Act
var result = await _resolver.VerifyEvidenceAsync(evidence, CancellationToken.None);
// Assert
result.Resolved.Should().BeTrue();
result.DigestMatches.Should().BeTrue();
result.Error.Should().BeNull();
}
[Fact]
public async Task VerifyEvidenceAsync_WithMismatchedDigest_ReturnsFailed()
{
// Arrange
var originalSnapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 100);
var changedSnapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 150); // Different count
_sbomResolverMock.Setup(r => r.ResolveAsync("sbom", "scan-123", It.IsAny<CancellationToken>()))
.ReturnsAsync(changedSnapshot);
var evidence = new EvidenceItem
{
EvidenceId = "ev-001",
Type = EvidenceType.Sbom,
Uri = "stella://sbom/scan-123",
Digest = "sha256:original-digest",
CollectedAt = DateTimeOffset.UtcNow,
Snapshot = originalSnapshot
};
// Act
var result = await _resolver.VerifyEvidenceAsync(evidence, CancellationToken.None);
// Assert
result.Resolved.Should().BeTrue();
result.DigestMatches.Should().BeFalse();
result.Error.Should().Contain("mismatch");
}
[Fact]
public async Task VerifyEvidenceAsync_WithInvalidUri_ReturnsFailed()
{
// Arrange
var evidence = new EvidenceItem
{
EvidenceId = "ev-001",
Type = EvidenceType.Sbom,
Uri = "https://invalid-scheme.com/path",
Digest = "sha256:abc123",
CollectedAt = DateTimeOffset.UtcNow,
Snapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 100)
};
// Act
var result = await _resolver.VerifyEvidenceAsync(evidence, CancellationToken.None);
// Assert
result.Resolved.Should().BeFalse();
result.Error.Should().Contain("Invalid evidence URI");
}
[Fact]
public async Task VerifyEvidenceAsync_WithNotFoundEvidence_ReturnsFailed()
{
// Arrange
_sbomResolverMock.Setup(r => r.ResolveAsync("sbom", "missing", It.IsAny<CancellationToken>()))
.ThrowsAsync(new EvidenceNotFoundException("sbom", "missing"));
var evidence = new EvidenceItem
{
EvidenceId = "ev-001",
Type = EvidenceType.Sbom,
Uri = "stella://sbom/missing",
Digest = "sha256:abc123",
CollectedAt = DateTimeOffset.UtcNow,
Snapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 100)
};
// Act
var result = await _resolver.VerifyEvidenceAsync(evidence, CancellationToken.None);
// Assert
result.Resolved.Should().BeFalse();
result.Error.Should().Contain("not found");
}
[Fact]
public void SupportsType_WithRegisteredType_ReturnsTrue()
{
_resolver.SupportsType("sbom").Should().BeTrue();
_resolver.SupportsType("reach").Should().BeTrue();
}
[Fact]
public void SupportsType_WithUnregisteredType_ReturnsFalse()
{
_resolver.SupportsType("unknown").Should().BeFalse();
}
[Fact]
public void SupportsType_IsCaseInsensitive()
{
_resolver.SupportsType("SBOM").Should().BeTrue();
_resolver.SupportsType("Sbom").Should().BeTrue();
}
}
/// <summary>
/// Tests for <see cref="PassthroughTypeResolver"/>.
/// </summary>
[Trait("Category", "Unit")]
public sealed class PassthroughTypeResolverTests
{
[Fact]
public async Task ResolveAsync_ReturnsSnapshotWithPathInfo()
{
// Arrange
var timeProvider = new FakeTimeProvider(DateTimeOffset.Parse("2026-01-10T10:00:00Z"));
var resolver = new PassthroughTypeResolver(["test"], timeProvider);
// Act
var snapshot = await resolver.ResolveAsync("test", "my-path", CancellationToken.None);
// Assert
snapshot.Type.Should().Be("test");
snapshot.Data.Should().ContainKey("path");
snapshot.Data["path"].Should().Be("my-path");
snapshot.Data["source"].Should().Be("passthrough");
}
[Fact]
public void SupportedTypes_ReturnsConfiguredTypes()
{
var resolver = new PassthroughTypeResolver(["a", "b", "c"], TimeProvider.System);
resolver.SupportedTypes.Should().BeEquivalentTo(["a", "b", "c"]);
}
}

258
src/__Libraries/__Tests/StellaOps.Evidence.Pack.Tests/InMemoryEvidencePackStoreTests.cs Normal file
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@@ -0,0 +1,258 @@
// <copyright file="InMemoryEvidencePackStoreTests.cs" company="StellaOps">
// Copyright (c) StellaOps. Licensed under the AGPL-3.0-or-later.
// </copyright>
using System.Collections.Immutable;
using FluentAssertions;
using StellaOps.Evidence.Pack.Models;
using StellaOps.Evidence.Pack.Storage;
namespace StellaOps.Evidence.Pack.Tests;
/// <summary>
/// Tests for <see cref="InMemoryEvidencePackStore"/>.
/// </summary>
[Trait("Category", "Unit")]
public sealed class InMemoryEvidencePackStoreTests
{
private readonly InMemoryEvidencePackStore _store;
public InMemoryEvidencePackStoreTests()
{
_store = new InMemoryEvidencePackStore();
}
[Fact]
public async Task SaveAsync_ThenGetByIdAsync_ReturnsPack()
{
// Arrange
var pack = CreateTestPack("pack-001", "tenant-1");
// Act
await _store.SaveAsync(pack, CancellationToken.None);
var retrieved = await _store.GetByIdAsync("tenant-1", "pack-001", CancellationToken.None);
// Assert
retrieved.Should().NotBeNull();
retrieved!.PackId.Should().Be("pack-001");
retrieved.TenantId.Should().Be("tenant-1");
}
[Fact]
public async Task GetByIdAsync_WithWrongTenant_ReturnsNull()
{
// Arrange
var pack = CreateTestPack("pack-001", "tenant-1");
await _store.SaveAsync(pack, CancellationToken.None);
// Act
var retrieved = await _store.GetByIdAsync("tenant-2", "pack-001", CancellationToken.None);
// Assert
retrieved.Should().BeNull();
}
[Fact]
public async Task GetByIdAsync_WithWildcardTenant_FindsAnyTenant()
{
// Arrange
var pack = CreateTestPack("pack-001", "tenant-1");
await _store.SaveAsync(pack, CancellationToken.None);
// Act
var retrieved = await _store.GetByIdAsync("*", "pack-001", CancellationToken.None);
// Assert
retrieved.Should().NotBeNull();
retrieved!.PackId.Should().Be("pack-001");
}
[Fact]
public async Task ListAsync_FiltersByTenant()
{
// Arrange
await _store.SaveAsync(CreateTestPack("pack-001", "tenant-1"), CancellationToken.None);
await _store.SaveAsync(CreateTestPack("pack-002", "tenant-1"), CancellationToken.None);
await _store.SaveAsync(CreateTestPack("pack-003", "tenant-2"), CancellationToken.None);
// Act
var results = await _store.ListAsync("tenant-1", null, CancellationToken.None);
// Assert
results.Should().HaveCount(2);
results.Should().AllSatisfy(p => p.TenantId.Should().Be("tenant-1"));
}
[Fact]
public async Task ListAsync_FiltersByCveId()
{
// Arrange
await _store.SaveAsync(CreateTestPack("pack-001", "tenant-1", cveId: "CVE-2023-1234"), CancellationToken.None);
await _store.SaveAsync(CreateTestPack("pack-002", "tenant-1", cveId: "CVE-2023-5678"), CancellationToken.None);
// Act
var query = new EvidencePackQuery { CveId = "CVE-2023-1234" };
var results = await _store.ListAsync("tenant-1", query, CancellationToken.None);
// Assert
results.Should().HaveCount(1);
results[0].Subject.CveId.Should().Be("CVE-2023-1234");
}
[Fact]
public async Task ListAsync_FiltersByRunId()
{
// Arrange
var pack1 = CreateTestPack("pack-001", "tenant-1");
var pack2 = CreateTestPack("pack-002", "tenant-1");
await _store.SaveAsync(pack1, CancellationToken.None);
await _store.SaveAsync(pack2, CancellationToken.None);
await _store.LinkToRunAsync("pack-001", "run-abc", CancellationToken.None);
// Act
var query = new EvidencePackQuery { RunId = "run-abc" };
var results = await _store.ListAsync("tenant-1", query, CancellationToken.None);
// Assert
results.Should().HaveCount(1);
results[0].PackId.Should().Be("pack-001");
}
[Fact]
public async Task ListAsync_AppliesLimit()
{
// Arrange
for (var i = 0; i < 10; i++)
{
await _store.SaveAsync(CreateTestPack($"pack-{i:D3}", "tenant-1"), CancellationToken.None);
}
// Act
var query = new EvidencePackQuery { Limit = 5 };
var results = await _store.ListAsync("tenant-1", query, CancellationToken.None);
// Assert
results.Should().HaveCount(5);
}
[Fact]
public async Task LinkToRunAsync_CreatesAssociation()
{
// Arrange
var pack = CreateTestPack("pack-001", "tenant-1");
await _store.SaveAsync(pack, CancellationToken.None);
// Act
await _store.LinkToRunAsync("pack-001", "run-xyz", CancellationToken.None);
// Assert
var packsForRun = await _store.GetByRunIdAsync("run-xyz", CancellationToken.None);
packsForRun.Should().HaveCount(1);
packsForRun[0].PackId.Should().Be("pack-001");
}
[Fact]
public async Task LinkToRunAsync_AllowsMultiplePacksPerRun()
{
// Arrange
await _store.SaveAsync(CreateTestPack("pack-001", "tenant-1"), CancellationToken.None);
await _store.SaveAsync(CreateTestPack("pack-002", "tenant-1"), CancellationToken.None);
// Act
await _store.LinkToRunAsync("pack-001", "run-xyz", CancellationToken.None);
await _store.LinkToRunAsync("pack-002", "run-xyz", CancellationToken.None);
// Assert
var packsForRun = await _store.GetByRunIdAsync("run-xyz", CancellationToken.None);
packsForRun.Should().HaveCount(2);
}
[Fact]
public async Task GetByRunIdAsync_WithNoLinks_ReturnsEmpty()
{
// Act
var results = await _store.GetByRunIdAsync("nonexistent-run", CancellationToken.None);
// Assert
results.Should().BeEmpty();
}
[Fact]
public async Task SaveSignedAsync_ThenGetSignedByIdAsync_ReturnsSignedPack()
{
// Arrange
var pack = CreateTestPack("pack-001", "tenant-1");
var signedPack = new SignedEvidencePack
{
Pack = pack,
Envelope = new DsseEnvelope
{
PayloadType = "application/vnd.stellaops.evidence-pack+json",
Payload = "base64-content",
PayloadDigest = "sha256:abc123",
Signatures = [new DsseSignature { KeyId = "key-1", Sig = "sig-1" }]
},
SignedAt = DateTimeOffset.UtcNow
};
// Act
await _store.SaveSignedAsync(signedPack, CancellationToken.None);
var retrieved = await _store.GetSignedByIdAsync("tenant-1", "pack-001", CancellationToken.None);
// Assert
retrieved.Should().NotBeNull();
retrieved!.Pack.PackId.Should().Be("pack-001");
retrieved.Envelope.Signatures.Should().HaveCount(1);
}
[Fact]
public async Task Clear_RemovesAllData()
{
// Arrange
await _store.SaveAsync(CreateTestPack("pack-001", "tenant-1"), CancellationToken.None);
await _store.LinkToRunAsync("pack-001", "run-1", CancellationToken.None);
// Act
_store.Clear();
// Assert
var pack = await _store.GetByIdAsync("tenant-1", "pack-001", CancellationToken.None);
pack.Should().BeNull();
var packs = await _store.GetByRunIdAsync("run-1", CancellationToken.None);
packs.Should().BeEmpty();
}
private static EvidencePack CreateTestPack(string packId, string tenantId, string? cveId = null)
{
return new EvidencePack
{
PackId = packId,
Version = "1.0",
TenantId = tenantId,
CreatedAt = DateTimeOffset.UtcNow,
Subject = new EvidenceSubject
{
Type = EvidenceSubjectType.Cve,
CveId = cveId ?? "CVE-2023-44487"
},
Claims = [new EvidenceClaim
{
ClaimId = "claim-001",
Text = "Test claim",
Type = ClaimType.VulnerabilityStatus,
Status = "affected",
Confidence = 0.9,
EvidenceIds = ["ev-001"]
}],
Evidence = [new EvidenceItem
{
EvidenceId = "ev-001",
Type = EvidenceType.Sbom,
Uri = "stella://sbom/test",
Digest = "sha256:test",
CollectedAt = DateTimeOffset.UtcNow,
Snapshot = EvidenceSnapshot.Sbom("cyclonedx", "1.4", 100)
}]
};
}
}

20
src/__Libraries/__Tests/StellaOps.Evidence.Pack.Tests/StellaOps.Evidence.Pack.Tests.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>net10.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
<IsPackable>false</IsPackable>
<RootNamespace>StellaOps.Evidence.Pack.Tests</RootNamespace>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Moq" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\..\StellaOps.Evidence.Pack\StellaOps.Evidence.Pack.csproj" />
<ProjectReference Include="..\..\StellaOps.TestKit\StellaOps.TestKit.csproj" />
</ItemGroup>
</Project>

370
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// <copyright file="CveSymbolMappingIntegrationTests.cs" company="StellaOps">
// Copyright (c) StellaOps. Licensed under the AGPL-3.0-or-later.
// </copyright>
// Sprint: SPRINT_20260109_009_003_BE_cve_symbol_mapping
// Task: Integration tests for CVE symbol mapping service
using FluentAssertions;
using Microsoft.Extensions.Logging.Abstractions;
using Microsoft.Extensions.Time.Testing;
using StellaOps.Reachability.Core.CveMapping;
using StellaOps.Reachability.Core.Symbols;
using Xunit;
namespace StellaOps.Reachability.Core.Tests.CveMapping;
/// <summary>
/// Integration tests for CVE symbol mapping end-to-end scenarios.
/// Tests the full pipeline from diff parsing to symbol extraction to mapping queries.
/// </summary>
[Trait("Category", "Integration")]
[Trait("Sprint", "009_003")]
public sealed class CveSymbolMappingIntegrationTests
{
private readonly FakeTimeProvider _timeProvider;
private readonly SymbolCanonicalizer _canonicalizer;
private readonly CveSymbolMappingService _service;
public CveSymbolMappingIntegrationTests()
{
_timeProvider = new FakeTimeProvider(new DateTimeOffset(2026, 1, 10, 12, 0, 0, TimeSpan.Zero));
_canonicalizer = new SymbolCanonicalizer();
_service = new CveSymbolMappingService(
_canonicalizer,
_timeProvider,
NullLogger<CveSymbolMappingService>.Instance);
}
#region End-to-End Pipeline Tests
[Fact(DisplayName = "Pipeline: Parse diff -> Extract symbols -> Create mapping -> Query")]
public async Task Pipeline_ParseDiff_ExtractSymbols_CreateMapping_Query()
{
// Arrange: Create test symbol and mapping
var symbol = CreateTestSymbol("org.example.vulnerableservice", "processinput");
// Create mapping
var mapping = CveSymbolMapping.Create(
"CVE-2024-INT-001",
new[] { VulnerableSymbol.Create(symbol, VulnerabilityType.Sink, 0.85) },
MappingSource.PatchAnalysis,
0.85,
_timeProvider);
// Ingest and query
await _service.IngestMappingAsync(mapping, CancellationToken.None);
var result = await _service.GetMappingAsync("CVE-2024-INT-001", CancellationToken.None);
// Assert
result.Should().NotBeNull();
result!.CveId.Should().Be("CVE-2024-INT-001");
result.Symbols.Should().NotBeEmpty();
result.Source.Should().Be(MappingSource.PatchAnalysis);
}
[Fact(DisplayName = "Multi-source merge: Patch + OSV + Manual -> Highest confidence wins")]
public async Task MultiSourceMerge_HighestConfidenceWins()
{
// Arrange: Multiple sources with different confidence
var symbol1 = CreateTestSymbol("com.example", "vulnerablefunc");
var symbol2 = CreateTestSymbol("com.example", "anotherfunc");
var symbol3 = CreateTestSymbol("com.example", "manualfunc");
var patchMapping = CveSymbolMapping.Create(
"CVE-2024-MERGE",
new[] { VulnerableSymbol.Create(symbol1, VulnerabilityType.Sink, 0.7) },
MappingSource.PatchAnalysis,
0.7,
_timeProvider);
var osvMapping = CveSymbolMapping.Create(
"CVE-2024-MERGE",
new[] { VulnerableSymbol.Create(symbol2, VulnerabilityType.Source, 0.8) },
MappingSource.OsvDatabase,
0.8,
_timeProvider);
var manualMapping = CveSymbolMapping.Create(
"CVE-2024-MERGE",
new[] { VulnerableSymbol.Create(symbol3, VulnerabilityType.Gadget, 0.95) },
MappingSource.ManualCuration,
0.95,
_timeProvider);
// Act: Ingest all sources
await _service.IngestMappingAsync(patchMapping, CancellationToken.None);
await _service.IngestMappingAsync(osvMapping, CancellationToken.None);
await _service.IngestMappingAsync(manualMapping, CancellationToken.None);
var result = await _service.GetMappingAsync("CVE-2024-MERGE", CancellationToken.None);
// Assert: All symbols merged, highest confidence source wins
result.Should().NotBeNull();
result!.Symbols.Should().HaveCount(3, "all sources should be merged");
result.Confidence.Should().Be(0.95, "manual curation has highest confidence");
}
#endregion
#region Symbol Query Tests
[Fact(DisplayName = "Query by package: Returns all CVEs affecting package")]
public async Task QueryByPackage_ReturnsAllAffectingCves()
{
// Arrange: Multiple CVEs affecting same package
var lodashSymbol1 = CreateTestSymbol("lodash", "merge");
var lodashSymbol2 = CreateTestSymbol("lodash", "template");
var otherSymbol = CreateTestSymbol("axios", "request");
await IngestTestMapping("CVE-2021-23337", lodashSymbol1, "pkg:npm/lodash@4.17.20");
await IngestTestMapping("CVE-2020-8203", lodashSymbol2, "pkg:npm/lodash@4.17.15");
await IngestTestMapping("CVE-2021-3749", otherSymbol, "pkg:npm/axios@0.21.0");
// Act
var result = await _service.GetMappingsForPackageAsync("pkg:npm/lodash@4.17.20", CancellationToken.None);
// Assert
result.Should().HaveCount(1);
result.Single().CveId.Should().Be("CVE-2021-23337");
}
[Fact(DisplayName = "Query by symbol: Returns CVEs where specific symbol is vulnerable")]
public async Task QueryBySymbol_ReturnsCvesWhereSymbolVulnerable()
{
// Arrange
var targetSymbol = CreateTestSymbol("log4j.core.lookup", "jndilookup");
var otherSymbol = CreateTestSymbol("log4j.core", "logger");
await IngestTestMapping("CVE-2021-44228", targetSymbol); // Log4Shell
await IngestTestMapping("CVE-2021-45046", targetSymbol); // Related CVE
await IngestTestMapping("CVE-2021-45105", otherSymbol); // Different symbol
// Act
var result = await _service.GetMappingsForSymbolAsync(
targetSymbol,
CancellationToken.None);
// Assert
result.Should().HaveCount(2);
result.Should().OnlyContain(m => m.CveId is "CVE-2021-44228" or "CVE-2021-45046");
}
#endregion
#region Determinism Tests
[Fact(DisplayName = "Same inputs produce identical mappings")]
public async Task Determinism_SameInputs_ProduceIdenticalMappings()
{
// Arrange
var service1 = CreateService();
var service2 = CreateService();
var symbol = CreateTestSymbol("deterministic.package", "vulnerablefunc");
var mapping = CveSymbolMapping.Create(
"CVE-2024-DET",
new[] { VulnerableSymbol.Create(symbol, VulnerabilityType.Sink, 0.9) },
MappingSource.PatchAnalysis,
0.9,
_timeProvider);
// Act
await service1.IngestMappingAsync(mapping, CancellationToken.None);
await service2.IngestMappingAsync(mapping, CancellationToken.None);
var result1 = await service1.GetMappingAsync("CVE-2024-DET", CancellationToken.None);
var result2 = await service2.GetMappingAsync("CVE-2024-DET", CancellationToken.None);
// Assert
result1.Should().NotBeNull();
result2.Should().NotBeNull();
result1!.CveId.Should().Be(result2!.CveId);
result1.Confidence.Should().Be(result2.Confidence);
result1.Symbols.Should().HaveCount(result2.Symbols.Length);
}
[Fact(DisplayName = "CVE ID lookup is case-insensitive")]
public async Task CveIdLookup_IsCaseInsensitive()
{
// Arrange
var symbol = CreateTestSymbol("test.package", "func");
var mapping = CveSymbolMapping.Create(
"CVE-2024-CASE",
new[] { VulnerableSymbol.Create(symbol, VulnerabilityType.Sink, 0.9) },
MappingSource.PatchAnalysis,
0.9,
_timeProvider);
await _service.IngestMappingAsync(mapping, CancellationToken.None);
// Act & Assert: All case variants should find the same mapping
var result1 = await _service.GetMappingAsync("CVE-2024-CASE", CancellationToken.None);
var result2 = await _service.GetMappingAsync("cve-2024-case", CancellationToken.None);
var result3 = await _service.GetMappingAsync("Cve-2024-Case", CancellationToken.None);
result1.Should().NotBeNull();
result2.Should().NotBeNull();
result3.Should().NotBeNull();
result1!.CveId.Should().Be(result2!.CveId);
result2.CveId.Should().Be(result3!.CveId);
}
#endregion
#region Real-World CVE Scenarios
[Fact(DisplayName = "Log4Shell CVE-2021-44228: Multiple vulnerable paths")]
public async Task Log4Shell_MultipleVulnerablePaths()
{
// Arrange: Log4Shell has multiple entry points
var lookupSymbol = CreateTestSymbol("org.apache.logging.log4j.core.lookup", "jndilookup");
var messageSymbol = CreateTestSymbol("org.apache.logging.log4j.core.pattern", "messagepatternconverter");
var interpolatorSymbol = CreateTestSymbol("org.apache.logging.log4j.core.lookup", "interpolator");
var symbols = new[]
{
VulnerableSymbol.Create(lookupSymbol, VulnerabilityType.Sink, 0.99),
VulnerableSymbol.Create(messageSymbol, VulnerabilityType.Source, 0.95),
VulnerableSymbol.Create(interpolatorSymbol, VulnerabilityType.Gadget, 0.97)
};
var mapping = CveSymbolMapping.Create(
"CVE-2021-44228",
symbols,
MappingSource.PatchAnalysis,
0.97,
_timeProvider);
// Act
await _service.IngestMappingAsync(mapping, CancellationToken.None);
var result = await _service.GetMappingAsync("CVE-2021-44228", CancellationToken.None);
// Assert
result.Should().NotBeNull();
result!.Symbols.Should().HaveCount(3);
result.Symbols.Should().Contain(s => s.Type == VulnerabilityType.Sink);
result.Symbols.Should().Contain(s => s.Type == VulnerabilityType.Source);
result.Symbols.Should().Contain(s => s.Type == VulnerabilityType.Gadget);
}
[Fact(DisplayName = "Spring4Shell CVE-2022-22965: Class loader manipulation")]
public async Task Spring4Shell_ClassLoaderManipulation()
{
// Arrange
var beanWrapperSymbol = CreateTestSymbol("org.springframework.beans", "beanwrapperimpl");
var classLoaderSymbol = CreateTestSymbol("java.lang", "classloader");
var symbols = new[]
{
VulnerableSymbol.Create(beanWrapperSymbol, VulnerabilityType.Sink, 0.98),
VulnerableSymbol.Create(classLoaderSymbol, VulnerabilityType.Gadget, 0.90)
};
var mapping = CveSymbolMapping.Create(
"CVE-2022-22965",
symbols,
MappingSource.PatchAnalysis,
0.94,
_timeProvider);
// Act
await _service.IngestMappingAsync(mapping, CancellationToken.None);
var result = await _service.GetMappingAsync("CVE-2022-22965", CancellationToken.None);
// Assert
result.Should().NotBeNull();
result!.CveId.Should().Be("CVE-2022-22965");
result.Symbols.Should().HaveCount(2);
}
#endregion
#region Statistics and Corpus Tests
[Fact(DisplayName = "GetStatistics returns accurate counts")]
public async Task GetStatistics_ReturnsAccurateCounts()
{
// Arrange
var symbol1 = CreateTestSymbol("pkg1", "func1");
var symbol2 = CreateTestSymbol("pkg2", "func2");
var symbol3 = CreateTestSymbol("pkg3", "func3");
await IngestTestMapping("CVE-2024-001", symbol1);
await IngestTestMapping("CVE-2024-002", symbol2);
await IngestTestMapping("CVE-2024-003", symbol3);
// Act
var stats = await _service.GetStatsAsync(CancellationToken.None);
// Assert
stats.TotalMappings.Should().Be(3);
}
[Fact(DisplayName = "Bulk ingest handles large corpus efficiently")]
public async Task BulkIngest_HandlesLargeCorpusEfficiently()
{
// Arrange: Create 100 CVE mappings
var mappings = Enumerable.Range(1, 100)
.Select(i =>
{
var symbol = CreateTestSymbol($"pkg{i}", $"func{i}");
return CveSymbolMapping.Create(
$"CVE-2024-{i:D4}",
new[] { VulnerableSymbol.Create(symbol, VulnerabilityType.Sink, 0.9) },
MappingSource.OsvDatabase,
0.9,
_timeProvider);
})
.ToList();
// Act
var sw = System.Diagnostics.Stopwatch.StartNew();
foreach (var mapping in mappings)
{
await _service.IngestMappingAsync(mapping, CancellationToken.None);
}
sw.Stop();
// Assert: Should complete quickly (under 1 second for 100 items)
sw.ElapsedMilliseconds.Should().BeLessThan(1000);
var stats = await _service.GetStatsAsync(CancellationToken.None);
stats.TotalMappings.Should().Be(100);
}
#endregion
#region Helper Methods
private CanonicalSymbol CreateTestSymbol(string @namespace, string method)
{
return CanonicalSymbol.Create(
@namespace,
"_",
method,
"()",
SymbolSource.StaticAnalysis);
}
private async Task IngestTestMapping(string cveId, CanonicalSymbol symbol, string? purl = null)
{
var mapping = CveSymbolMapping.Create(
cveId,
new[] { VulnerableSymbol.Create(symbol, VulnerabilityType.Sink, 0.9) },
MappingSource.PatchAnalysis,
0.9,
_timeProvider,
affectedPurls: purl != null ? new[] { purl } : null);
await _service.IngestMappingAsync(mapping, CancellationToken.None);
}
private CveSymbolMappingService CreateService()
{
return new CveSymbolMappingService(
new SymbolCanonicalizer(),
_timeProvider,
NullLogger<CveSymbolMappingService>.Instance);
}
#endregion
}

416
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// SPDX-License-Identifier: AGPL-3.0-or-later
// SPDX-FileCopyrightText: 2026 StellaOps Contributors
using FluentAssertions;
using FsCheck;
using FsCheck.Xunit;
using StellaOps.Reachability.Core;
namespace StellaOps.Reachability.Core.Tests.Properties;
/// <summary>
/// Property-based tests for the 8-state reachability lattice.
/// Verifies lattice monotonicity, confidence bounds, and determinism.
/// </summary>
public sealed class ReachabilityLatticePropertyTests
{
// Lattice ordering: Unknown (0) < Static (1-2) < Runtime (3-4) < Confirmed (5-6), Contested (7) is special
private static readonly Dictionary<LatticeState, int> EvidenceStrength = new()
{
[LatticeState.Unknown] = 0,
[LatticeState.StaticReachable] = 1,
[LatticeState.StaticUnreachable] = 2,
[LatticeState.RuntimeObserved] = 3,
[LatticeState.RuntimeUnobserved] = 3,
[LatticeState.ConfirmedReachable] = 4,
[LatticeState.ConfirmedUnreachable] = 4,
[LatticeState.Contested] = -1, // Special case - conflict state
};
#region Lattice Monotonicity Property
/// <summary>
/// Property: State transitions from Unknown always move forward (increase evidence strength),
/// except when transitioning to Contested due to conflicting evidence.
/// </summary>
[Property(MaxTest = 100)]
public Property ApplyEvidence_FromUnknown_AlwaysIncreasesOrConflicts()
{
return Prop.ForAll(
LatticeArbs.AnyEvidenceType(),
evidence =>
{
var lattice = new ReachabilityLattice();
var initial = lattice.CurrentState;
lattice.ApplyEvidence(evidence);
var result = lattice.CurrentState;
var initialStrength = EvidenceStrength[initial];
var resultStrength = EvidenceStrength[result];
// Either strength increased OR we went to Contested
return (resultStrength > initialStrength || result == LatticeState.Contested)
.Label($"From {initial} with {evidence}: {result} (strength {initialStrength} -> {resultStrength})");
});
}
/// <summary>
/// Property: State transitions generally increase evidence strength,
/// except when conflicting evidence produces Contested state.
/// </summary>
[Property(MaxTest = 200)]
public Property ApplyEvidence_Sequence_MonotonicExceptContested()
{
return Prop.ForAll(
LatticeArbs.EvidenceSequence(1, 5),
evidenceSequence =>
{
var lattice = new ReachabilityLattice();
var previousStrength = EvidenceStrength[LatticeState.Unknown];
var monotonic = true;
var wentToContested = false;
foreach (var evidence in evidenceSequence)
{
lattice.ApplyEvidence(evidence);
var currentStrength = EvidenceStrength[lattice.CurrentState];
if (lattice.CurrentState == LatticeState.Contested)
{
wentToContested = true;
break;
}
if (currentStrength < previousStrength)
{
monotonic = false;
break;
}
previousStrength = currentStrength;
}
return (monotonic || wentToContested)
.Label($"Monotonic: {monotonic}, Contested: {wentToContested}, Final: {lattice.CurrentState}");
});
}
/// <summary>
/// Property: Confirmed states remain stable with reinforcing evidence.
/// </summary>
[Property(MaxTest = 100)]
public Property ConfirmedState_WithReinforcingEvidence_RemainsConfirmed()
{
return Prop.ForAll(
LatticeArbs.ReinforcingEvidencePair(),
pair =>
{
var (confirmedState, reinforcingEvidence) = pair;
var lattice = new ReachabilityLattice();
// Get to confirmed state
if (confirmedState == LatticeState.ConfirmedReachable)
{
lattice.ApplyEvidence(EvidenceType.StaticReachable);
lattice.ApplyEvidence(EvidenceType.RuntimeObserved);
}
else
{
lattice.ApplyEvidence(EvidenceType.StaticUnreachable);
lattice.ApplyEvidence(EvidenceType.RuntimeUnobserved);
}
var beforeState = lattice.CurrentState;
lattice.ApplyEvidence(reinforcingEvidence);
var afterState = lattice.CurrentState;
return (beforeState == afterState)
.Label($"{beforeState} + {reinforcingEvidence} = {afterState}");
});
}
#endregion
#region Confidence Bounds Property
/// <summary>
/// Property: Confidence is always clamped between 0.0 and 1.0.
/// </summary>
[Property(MaxTest = 200)]
public Property Confidence_AlwaysWithinBounds()
{
return Prop.ForAll(
LatticeArbs.EvidenceSequence(1, 10),
evidenceSequence =>
{
var lattice = new ReachabilityLattice();
foreach (var evidence in evidenceSequence)
{
lattice.ApplyEvidence(evidence);
var confidence = lattice.Confidence;
if (confidence < 0.0 || confidence > 1.0)
{
return false.Label($"Confidence {confidence} out of bounds after {evidence}");
}
}
return (lattice.Confidence >= 0.0 && lattice.Confidence <= 1.0)
.Label($"Final confidence: {lattice.Confidence}");
});
}
/// <summary>
/// Property: Confidence increases with positive evidence, with some exceptions.
/// </summary>
[Property(MaxTest = 100)]
public Property Confidence_IncreasesWithPositiveEvidence()
{
return Prop.ForAll(
LatticeArbs.AnyEvidenceType(),
evidence =>
{
var lattice = new ReachabilityLattice();
var beforeConfidence = lattice.Confidence;
var transition = lattice.ApplyEvidence(evidence);
var afterConfidence = lattice.Confidence;
// If transition has positive delta, confidence should increase
// If negative delta (conflict), confidence may decrease
if (transition is null)
return true.Label("No transition");
if (transition.ConfidenceDelta > 0)
{
return (afterConfidence >= beforeConfidence)
.Label($"Positive delta {transition.ConfidenceDelta}: {beforeConfidence} -> {afterConfidence}");
}
return true.Label($"Non-positive delta {transition.ConfidenceDelta}");
});
}
#endregion
#region Determinism Property
/// <summary>
/// Property: Same evidence sequence produces same final state.
/// </summary>
[Property(MaxTest = 100)]
public Property SameInputs_ProduceSameOutput()
{
return Prop.ForAll(
LatticeArbs.EvidenceSequence(1, 5),
evidenceSequence =>
{
var lattice1 = new ReachabilityLattice();
var lattice2 = new ReachabilityLattice();
foreach (var evidence in evidenceSequence)
{
lattice1.ApplyEvidence(evidence);
lattice2.ApplyEvidence(evidence);
}
return (lattice1.CurrentState == lattice2.CurrentState &&
Math.Abs(lattice1.Confidence - lattice2.Confidence) < 0.0001)
.Label($"L1: {lattice1.CurrentState}/{lattice1.Confidence:F4}, L2: {lattice2.CurrentState}/{lattice2.Confidence:F4}");
});
}
/// <summary>
/// Property: Combine method is deterministic - same inputs produce same output.
/// </summary>
[Property(MaxTest = 100)]
public Property Combine_IsDeterministic()
{
return Prop.ForAll(
LatticeArbs.AnyStaticResult(),
LatticeArbs.AnyRuntimeResult(),
(staticResult, runtimeResult) =>
{
var result1 = ReachabilityLattice.Combine(staticResult, runtimeResult);
var result2 = ReachabilityLattice.Combine(staticResult, runtimeResult);
return (result1.State == result2.State &&
Math.Abs(result1.Confidence - result2.Confidence) < 0.0001)
.Label($"R1: {result1.State}/{result1.Confidence:F4}, R2: {result2.State}/{result2.Confidence:F4}");
});
}
/// <summary>
/// Property: Evidence order affects final state (non-commutative in some cases).
/// </summary>
[Property(MaxTest = 100)]
public Property EvidenceOrder_MayAffectResult()
{
// This test documents that evidence order CAN matter, not that it always does
return Prop.ForAll(
LatticeArbs.AnyEvidenceType(),
LatticeArbs.AnyEvidenceType(),
(e1, e2) =>
{
if (e1 == e2) return true.Label("Same evidence, skip");
var latticeAB = new ReachabilityLattice();
latticeAB.ApplyEvidence(e1);
latticeAB.ApplyEvidence(e2);
var latticeBA = new ReachabilityLattice();
latticeBA.ApplyEvidence(e2);
latticeBA.ApplyEvidence(e1);
// Document whether order matters - both results should be valid states
var bothValid = Enum.IsDefined(latticeAB.CurrentState) &&
Enum.IsDefined(latticeBA.CurrentState);
return bothValid
.Label($"{e1}+{e2}={latticeAB.CurrentState}, {e2}+{e1}={latticeBA.CurrentState}");
});
}
#endregion
#region Reset Property
/// <summary>
/// Property: Reset returns lattice to initial state.
/// </summary>
[Property(MaxTest = 50)]
public Property Reset_ReturnsToInitialState()
{
return Prop.ForAll(
LatticeArbs.EvidenceSequence(1, 5),
evidenceSequence =>
{
var lattice = new ReachabilityLattice();
foreach (var evidence in evidenceSequence)
{
lattice.ApplyEvidence(evidence);
}
lattice.Reset();
return (lattice.CurrentState == LatticeState.Unknown &&
lattice.Confidence == 0.0)
.Label($"After reset: {lattice.CurrentState}, {lattice.Confidence}");
});
}
#endregion
}
/// <summary>
/// Custom FsCheck arbitraries for reachability lattice types.
/// </summary>
internal static class LatticeArbs
{
private static readonly EvidenceType[] AllEvidenceTypes =
[
EvidenceType.StaticReachable,
EvidenceType.StaticUnreachable,
EvidenceType.RuntimeObserved,
EvidenceType.RuntimeUnobserved
];
public static Arbitrary<EvidenceType> AnyEvidenceType() =>
Arb.From(Gen.Elements(AllEvidenceTypes));
public static Arbitrary<List<EvidenceType>> EvidenceSequence(int minLength, int maxLength) =>
Arb.From(
from length in Gen.Choose(minLength, maxLength)
from sequence in Gen.ListOf(length, Gen.Elements(AllEvidenceTypes))
select sequence.ToList());
public static Arbitrary<(LatticeState, EvidenceType)> ReinforcingEvidencePair()
{
var pairs = new (LatticeState, EvidenceType)[]
{
(LatticeState.ConfirmedReachable, EvidenceType.StaticReachable),
(LatticeState.ConfirmedReachable, EvidenceType.RuntimeObserved),
(LatticeState.ConfirmedUnreachable, EvidenceType.StaticUnreachable),
(LatticeState.ConfirmedUnreachable, EvidenceType.RuntimeUnobserved),
};
return Arb.From(Gen.Elements(pairs));
}
public static Arbitrary<StaticReachabilityResult?> AnyStaticResult()
{
var testSymbol = new SymbolRef
{
Purl = "pkg:npm/test@1.0.0",
Namespace = "test",
SymbolName = "testFunc"
};
var reachableResult = new StaticReachabilityResult
{
Symbol = testSymbol,
ArtifactDigest = "sha256:test123",
IsReachable = true,
PathCount = 1,
ShortestPathLength = 3,
AnalyzedAt = DateTimeOffset.UtcNow
};
var unreachableResult = new StaticReachabilityResult
{
Symbol = testSymbol,
ArtifactDigest = "sha256:test123",
IsReachable = false,
PathCount = 0,
ShortestPathLength = null,
AnalyzedAt = DateTimeOffset.UtcNow
};
return Arb.From(Gen.OneOf(
Gen.Constant<StaticReachabilityResult?>(null),
Gen.Constant<StaticReachabilityResult?>(reachableResult),
Gen.Constant<StaticReachabilityResult?>(unreachableResult)
));
}
public static Arbitrary<RuntimeReachabilityResult?> AnyRuntimeResult()
{
var testSymbol = new SymbolRef
{
Purl = "pkg:npm/test@1.0.0",
Namespace = "test",
SymbolName = "testFunc"
};
var now = DateTimeOffset.UtcNow;
var observedResult = new RuntimeReachabilityResult
{
Symbol = testSymbol,
ArtifactDigest = "sha256:test123",
WasObserved = true,
ObservationWindow = TimeSpan.FromDays(7),
WindowStart = now.AddDays(-7),
WindowEnd = now,
HitCount = 10
};
var unobservedResult = new RuntimeReachabilityResult
{
Symbol = testSymbol,
ArtifactDigest = "sha256:test123",
WasObserved = false,
ObservationWindow = TimeSpan.FromDays(7),
WindowStart = now.AddDays(-7),
WindowEnd = now,
HitCount = 0
};
return Arb.From(Gen.OneOf(
Gen.Constant<RuntimeReachabilityResult?>(null),
Gen.Constant<RuntimeReachabilityResult?>(observedResult),
Gen.Constant<RuntimeReachabilityResult?>(unobservedResult)
));
}
}

2
src/__Libraries/__Tests/StellaOps.Reachability.Core.Tests/StellaOps.Reachability.Core.Tests.csproj
View File

@@ -11,6 +11,8 @@
<ItemGroup>
<PackageReference Include="FluentAssertions" />
<PackageReference Include="FsCheck" />
<PackageReference Include="FsCheck.Xunit" />
<PackageReference Include="Microsoft.NET.Test.Sdk" />
<PackageReference Include="xunit.v3" />
<PackageReference Include="xunit.runner.visualstudio" />