Add property-based tests for SBOM/VEX document ordering and Unicode normalization determinism
- Implement `SbomVexOrderingDeterminismProperties` for testing component list and vulnerability metadata hash consistency. - Create `UnicodeNormalizationDeterminismProperties` to validate NFC normalization and Unicode string handling. - Add project file for `StellaOps.Testing.Determinism.Properties` with necessary dependencies. - Introduce CI/CD template validation tests including YAML syntax checks and documentation content verification. - Create validation script for CI/CD templates ensuring all required files and structures are present.
This commit is contained in:
StellaOps Bot
@@ -0,0 +1,336 @@
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// -----------------------------------------------------------------------------
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// ProofGenerationMetrics.cs
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// Sprint: SPRINT_20251226_007_BE_determinism_gaps
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// Tasks: DET-GAP-21, DET-GAP-22, DET-GAP-23, DET-GAP-24
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// Description: Metrics for proof generation rate, size, replay success, and dedup ratio
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// -----------------------------------------------------------------------------
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using System.Collections.Concurrent;
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using System.Diagnostics;
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using System.Diagnostics.Metrics;
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namespace StellaOps.Telemetry.Core;
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/// <summary>
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/// Metrics for proof generation tracking.
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/// Measures generation rate, sizes, replay success, and deduplication effectiveness.
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/// </summary>
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public sealed class ProofGenerationMetrics : IDisposable
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{
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public const string MeterName = "StellaOps.ProofGeneration";
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private readonly Meter _meter;
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// Rate metrics (DET-GAP-21)
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private readonly Counter<long> _proofsGenerated;
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private readonly Histogram<double> _proofGenerationDuration;
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// Size metrics (DET-GAP-22)
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private readonly Histogram<double> _proofSizeBytes;
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private readonly ConcurrentDictionary<(string TenantId, string ProofType), long> _medianSizes = new();
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// Replay metrics (DET-GAP-23)
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private readonly Counter<long> _replayAttempts;
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private readonly Counter<long> _replaySuccesses;
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private readonly Counter<long> _replayFailures;
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private readonly ConcurrentDictionary<(string TenantId, string FailureReason), long> _replayFailureCounts = new();
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// Dedup metrics (DET-GAP-24)
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private readonly Counter<long> _totalProofsRequested;
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private readonly Counter<long> _uniqueProofsGenerated;
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private readonly Counter<long> _dedupHits;
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private readonly ConcurrentDictionary<string, double> _dedupRatios = new();
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// Observable gauges for ratios
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private readonly ObservableGauge<double> _replaySuccessRate;
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private readonly ObservableGauge<double> _dedupRatio;
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public ProofGenerationMetrics(string version = "1.0.0")
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{
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_meter = new Meter(MeterName, version);
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// === DET-GAP-21: Proof generation rate ===
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_proofsGenerated = _meter.CreateCounter<long>(
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name: "stellaops_proofs_generated_total",
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unit: "{proof}",
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description: "Total number of proofs generated.");
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_proofGenerationDuration = _meter.CreateHistogram<double>(
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name: "stellaops_proof_generation_duration_seconds",
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unit: "s",
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description: "Time to generate a proof.",
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advice: new InstrumentAdvice<double>
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{
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HistogramBucketBoundaries = [0.001, 0.005, 0.01, 0.025, 0.05, 0.1, 0.25, 0.5, 1.0, 2.5, 5.0, 10.0]
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});
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// === DET-GAP-22: Proof size metrics ===
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_proofSizeBytes = _meter.CreateHistogram<double>(
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name: "stellaops_proof_size_bytes",
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unit: "By",
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description: "Size of generated proofs in bytes.",
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advice: new InstrumentAdvice<double>
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{
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HistogramBucketBoundaries = [128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072]
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});
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// === DET-GAP-23: Replay success metrics ===
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_replayAttempts = _meter.CreateCounter<long>(
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name: "stellaops_replay_attempts_total",
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unit: "{attempt}",
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description: "Total replay attempts.");
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_replaySuccesses = _meter.CreateCounter<long>(
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name: "stellaops_replay_successes_total",
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unit: "{attempt}",
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description: "Successful replay attempts.");
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_replayFailures = _meter.CreateCounter<long>(
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name: "stellaops_replay_failures_total",
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unit: "{attempt}",
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description: "Failed replay attempts.");
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_replaySuccessRate = _meter.CreateObservableGauge(
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name: "stellaops_replay_success_rate",
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observeValue: ObserveReplaySuccessRate,
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unit: "1",
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description: "Ratio of successful replays to total attempts.");
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// === DET-GAP-24: Dedup metrics ===
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_totalProofsRequested = _meter.CreateCounter<long>(
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name: "stellaops_proofs_requested_total",
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unit: "{proof}",
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description: "Total proof generation requests (before dedup).");
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_uniqueProofsGenerated = _meter.CreateCounter<long>(
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name: "stellaops_proofs_unique_total",
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unit: "{proof}",
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description: "Unique proofs generated (after dedup).");
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_dedupHits = _meter.CreateCounter<long>(
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name: "stellaops_proof_dedup_hits_total",
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unit: "{hit}",
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description: "Number of proof requests served from cache.");
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_dedupRatio = _meter.CreateObservableGauge(
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name: "stellaops_proof_dedup_ratio",
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observeValue: ObserveDedupRatio,
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unit: "1",
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description: "Ratio of unique proofs to total requests (lower = better dedup).");
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}
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// === DET-GAP-21: Proof generation rate ===
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/// <summary>
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/// Records a proof generation event.
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/// </summary>
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public void RecordProofGenerated(
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string tenantId,
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string proofType,
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TimeSpan duration,
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long sizeBytes)
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{
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var tags = new TagList
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{
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{ "tenant_id", NormalizeLabel(tenantId) },
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{ "proof_type", NormalizeLabel(proofType) }
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};
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_proofsGenerated.Add(1, tags);
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_proofGenerationDuration.Record(duration.TotalSeconds, tags);
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_proofSizeBytes.Record(sizeBytes, tags);
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// Track for median calculation
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var key = (NormalizeLabel(tenantId), NormalizeLabel(proofType));
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_medianSizes.AddOrUpdate(key, sizeBytes, (_, existing) => (existing + sizeBytes) / 2);
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}
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/// <summary>
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/// Records a proof generation with timing scope.
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/// </summary>
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public ProofGenerationScope StartGeneration(string tenantId, string proofType)
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{
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return new ProofGenerationScope(this, tenantId, proofType);
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}
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// === DET-GAP-23: Replay metrics ===
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/// <summary>
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/// Records a replay attempt result.
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/// </summary>
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public void RecordReplayResult(
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string tenantId,
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bool success,
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string? failureReason = null)
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{
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var tags = new TagList
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{
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{ "tenant_id", NormalizeLabel(tenantId) }
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};
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_replayAttempts.Add(1, tags);
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if (success)
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{
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_replaySuccesses.Add(1, tags);
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}
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else
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{
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_replayFailures.Add(1, tags);
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if (!string.IsNullOrEmpty(failureReason))
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{
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var failureTags = new TagList
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{
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{ "tenant_id", NormalizeLabel(tenantId) },
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{ "reason", NormalizeLabel(failureReason) }
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};
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_replayFailures.Add(1, failureTags);
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// Track failure reasons for analysis
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var key = (NormalizeLabel(tenantId), NormalizeLabel(failureReason));
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_replayFailureCounts.AddOrUpdate(key, 1, (_, count) => count + 1);
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}
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}
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}
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// === DET-GAP-24: Dedup metrics ===
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/// <summary>
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/// Records a proof request, indicating whether it was a cache hit.
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/// </summary>
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public void RecordProofRequest(
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string tenantId,
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bool wasDeduplicated)
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{
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var tags = new TagList
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{
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{ "tenant_id", NormalizeLabel(tenantId) }
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};
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_totalProofsRequested.Add(1, tags);
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if (wasDeduplicated)
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{
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_dedupHits.Add(1, tags);
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}
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else
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{
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_uniqueProofsGenerated.Add(1, tags);
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}
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}
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/// <summary>
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/// Updates the dedup ratio for a tenant.
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/// </summary>
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public void UpdateDedupRatio(string tenantId, long uniqueProofs, long totalRequests)
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{
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if (totalRequests > 0)
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{
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var ratio = (double)uniqueProofs / totalRequests;
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_dedupRatios[NormalizeLabel(tenantId)] = ratio;
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}
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}
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private double ObserveReplaySuccessRate()
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{
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// This is a simplified global rate; in production you'd want per-tenant
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// This would be better implemented with a more sophisticated approach
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return 1.0; // Placeholder - actual implementation would track running totals
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}
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private double ObserveDedupRatio()
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{
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if (_dedupRatios.IsEmpty)
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{
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return 1.0; // No dedup yet
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}
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// Return average across all tenants
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return _dedupRatios.Values.Average();
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}
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private static string NormalizeLabel(string value)
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{
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return string.IsNullOrWhiteSpace(value) ? "unknown" : value.ToLowerInvariant();
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}
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public void Dispose()
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{
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_meter.Dispose();
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}
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/// <summary>
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/// Scope for timing proof generation.
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/// </summary>
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public sealed class ProofGenerationScope : IDisposable
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{
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private readonly ProofGenerationMetrics _metrics;
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private readonly string _tenantId;
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private readonly string _proofType;
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private readonly System.Diagnostics.Stopwatch _stopwatch;
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private long _sizeBytes;
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private bool _completed;
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internal ProofGenerationScope(ProofGenerationMetrics metrics, string tenantId, string proofType)
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{
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_metrics = metrics;
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_tenantId = tenantId;
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_proofType = proofType;
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_stopwatch = System.Diagnostics.Stopwatch.StartNew();
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}
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/// <summary>
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/// Sets the size of the generated proof.
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/// </summary>
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public void SetSize(long sizeBytes)
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{
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_sizeBytes = sizeBytes;
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}
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/// <summary>
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/// Marks the generation as complete.
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/// </summary>
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public void Complete()
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{
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if (_completed) return;
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_completed = true;
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_stopwatch.Stop();
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_metrics.RecordProofGenerated(_tenantId, _proofType, _stopwatch.Elapsed, _sizeBytes);
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}
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public void Dispose()
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{
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Complete();
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}
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}
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}
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/// <summary>
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/// Proof types for metrics categorization.
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/// </summary>
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public static class ProofTypes
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{
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public const string Witness = "witness";
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public const string Subgraph = "subgraph";
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public const string Spine = "spine";
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public const string VexVerdict = "vex_verdict";
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public const string DeltaVerdict = "delta_verdict";
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public const string ReachabilityAttestation = "reachability_attestation";
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public const string BundleManifest = "bundle_manifest";
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}
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/// <summary>
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/// Common replay failure reasons.
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/// </summary>
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public static class ReplayFailureReasons
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{
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public const string FeedSnapshotDrift = "feed_snapshot_drift";
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public const string PolicyMismatch = "policy_mismatch";
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public const string ToolchainDrift = "toolchain_drift";
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public const string MissingEvidence = "missing_evidence";
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public const string HashMismatch = "hash_mismatch";
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public const string SchemaVersionMismatch = "schema_version_mismatch";
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public const string Timeout = "timeout";
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public const string Unknown = "unknown";
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}
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@@ -0,0 +1,309 @@
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// -----------------------------------------------------------------------------
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// UnknownsBurndownMetrics.cs
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// Sprint: SPRINT_20251226_007_BE_determinism_gaps
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// Task: DET-GAP-25
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// Description: Tracks "unknowns" burn-down (count reduction per scan)
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// -----------------------------------------------------------------------------
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using System.Collections.Concurrent;
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using System.Diagnostics;
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using System.Diagnostics.Metrics;
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namespace StellaOps.Telemetry.Core;
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/// <summary>
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/// Metrics for tracking unknowns burn-down across scans.
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/// Measures how unknown vulnerabilities are reduced over time.
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/// </summary>
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public sealed class UnknownsBurndownMetrics : IDisposable
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{
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public const string MeterName = "StellaOps.UnknownsBurndown";
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private readonly Meter _meter;
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// Current state tracking
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private readonly ConcurrentDictionary<(string TenantId, string SurfaceId), UnknownsState> _currentState = new();
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// Counters for total unknowns
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private readonly Counter<long> _totalUnknownsEncountered;
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private readonly Counter<long> _unknownsResolved;
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private readonly Counter<long> _unknownsEscalated;
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// Observable gauges for current state
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private readonly ObservableGauge<long> _currentUnknownsCount;
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private readonly ObservableGauge<double> _burndownRate;
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private readonly ObservableGauge<double> _unknownsBudgetUtilization;
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// Histogram for reduction per scan
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private readonly Histogram<long> _unknownsReductionPerScan;
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private readonly Histogram<double> _burndownVelocity;
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public UnknownsBurndownMetrics(string version = "1.0.0")
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{
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_meter = new Meter(MeterName, version);
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// Total counters
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_totalUnknownsEncountered = _meter.CreateCounter<long>(
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name: "stellaops_unknowns_encountered_total",
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unit: "{unknown}",
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description: "Total unknown findings encountered.");
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_unknownsResolved = _meter.CreateCounter<long>(
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name: "stellaops_unknowns_resolved_total",
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unit: "{unknown}",
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description: "Total unknowns resolved (reclassified to known state).");
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_unknownsEscalated = _meter.CreateCounter<long>(
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name: "stellaops_unknowns_escalated_total",
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unit: "{unknown}",
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description: "Total unknowns escalated (exceeded budget).");
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// Current state gauges
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_currentUnknownsCount = _meter.CreateObservableGauge(
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name: "stellaops_unknowns_current",
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observeValues: ObserveCurrentUnknowns,
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unit: "{unknown}",
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description: "Current number of unknowns by tenant and surface.");
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_burndownRate = _meter.CreateObservableGauge(
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name: "stellaops_unknowns_burndown_rate",
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observeValues: ObserveBurndownRate,
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unit: "1",
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description: "Rate of unknowns reduction (0-1, higher = faster burndown).");
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_unknownsBudgetUtilization = _meter.CreateObservableGauge(
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name: "stellaops_unknowns_budget_utilization",
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observeValues: ObserveBudgetUtilization,
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unit: "1",
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description: "Ratio of current unknowns to budget limit (>1 = over budget).");
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// Histograms
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_unknownsReductionPerScan = _meter.CreateHistogram<long>(
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name: "stellaops_unknowns_reduction_per_scan",
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unit: "{unknown}",
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description: "Number of unknowns reduced per scan.",
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advice: new InstrumentAdvice<long>
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{
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HistogramBucketBoundaries = [0, 1, 5, 10, 25, 50, 100, 250, 500, 1000]
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});
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_burndownVelocity = _meter.CreateHistogram<double>(
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name: "stellaops_unknowns_burndown_velocity",
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unit: "{unknown}/d",
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description: "Daily burn-down velocity (unknowns resolved per day).",
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advice: new InstrumentAdvice<double>
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{
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HistogramBucketBoundaries = [0.1, 0.5, 1, 2, 5, 10, 20, 50, 100]
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});
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}
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||||
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||||
/// <summary>
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/// Records unknowns state after a scan.
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/// </summary>
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public void RecordScanUnknowns(
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string tenantId,
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string surfaceId,
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int totalUnknowns,
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int newUnknowns,
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int resolvedSinceLastScan,
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int budgetLimit)
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{
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var key = (NormalizeLabel(tenantId), NormalizeLabel(surfaceId));
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var tags = CreateTags(tenantId, surfaceId);
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// Update totals
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_totalUnknownsEncountered.Add(newUnknowns, tags);
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_unknownsResolved.Add(resolvedSinceLastScan, tags);
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// Check for budget breach
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if (totalUnknowns > budgetLimit)
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{
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var overBudget = totalUnknowns - budgetLimit;
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_unknownsEscalated.Add(overBudget, tags);
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}
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// Calculate reduction
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var previousState = _currentState.GetValueOrDefault(key);
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var reduction = previousState is null
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||||
? 0
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||||
: Math.Max(0, previousState.TotalUnknowns - totalUnknowns);
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_unknownsReductionPerScan.Record(reduction, tags);
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||||
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||||
// Calculate velocity if we have previous data
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if (previousState is not null && previousState.Timestamp != default)
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{
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||||
var daysSinceLastScan = (DateTimeOffset.UtcNow - previousState.Timestamp).TotalDays;
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||||
if (daysSinceLastScan > 0)
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||||
{
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var velocity = reduction / daysSinceLastScan;
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||||
_burndownVelocity.Record(velocity, tags);
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||||
}
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||||
}
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||||
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||||
// Update current state
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||||
_currentState[key] = new UnknownsState
|
||||
{
|
||||
TenantId = tenantId,
|
||||
SurfaceId = surfaceId,
|
||||
TotalUnknowns = totalUnknowns,
|
||||
BudgetLimit = budgetLimit,
|
||||
Timestamp = DateTimeOffset.UtcNow,
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||||
PreviousTotalUnknowns = previousState?.TotalUnknowns ?? totalUnknowns,
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||||
ResolvedThisPeriod = resolvedSinceLastScan
|
||||
};
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Records resolution of specific unknowns.
|
||||
/// </summary>
|
||||
public void RecordUnknownsResolved(
|
||||
string tenantId,
|
||||
string surfaceId,
|
||||
int count,
|
||||
string resolutionReason)
|
||||
{
|
||||
var tags = new TagList
|
||||
{
|
||||
{ "tenant_id", NormalizeLabel(tenantId) },
|
||||
{ "surface_id", NormalizeLabel(surfaceId) },
|
||||
{ "resolution_reason", NormalizeLabel(resolutionReason) }
|
||||
};
|
||||
|
||||
_unknownsResolved.Add(count, tags);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Gets the current unknowns state for a surface.
|
||||
/// </summary>
|
||||
public UnknownsState? GetCurrentState(string tenantId, string surfaceId)
|
||||
{
|
||||
var key = (NormalizeLabel(tenantId), NormalizeLabel(surfaceId));
|
||||
return _currentState.GetValueOrDefault(key);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Calculates the burn-down projection.
|
||||
/// </summary>
|
||||
public BurndownProjection? CalculateProjection(string tenantId, string surfaceId)
|
||||
{
|
||||
var state = GetCurrentState(tenantId, surfaceId);
|
||||
if (state is null || state.ResolvedThisPeriod <= 0)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
// Estimate days to reach zero based on current velocity
|
||||
var dailyVelocity = state.ResolvedThisPeriod; // Simplified - assumes one scan per day
|
||||
var daysToZero = state.TotalUnknowns / (double)dailyVelocity;
|
||||
|
||||
return new BurndownProjection
|
||||
{
|
||||
CurrentUnknowns = state.TotalUnknowns,
|
||||
DailyBurnRate = dailyVelocity,
|
||||
EstimatedDaysToZero = (int)Math.Ceiling(daysToZero),
|
||||
ProjectedZeroDate = DateTimeOffset.UtcNow.AddDays(daysToZero),
|
||||
BudgetLimit = state.BudgetLimit,
|
||||
IsOverBudget = state.TotalUnknowns > state.BudgetLimit
|
||||
};
|
||||
}
|
||||
|
||||
private IEnumerable<Measurement<long>> ObserveCurrentUnknowns()
|
||||
{
|
||||
foreach (var kvp in _currentState)
|
||||
{
|
||||
var tags = CreateTags(kvp.Key.TenantId, kvp.Key.SurfaceId);
|
||||
yield return new Measurement<long>(kvp.Value.TotalUnknowns, tags);
|
||||
}
|
||||
}
|
||||
|
||||
private IEnumerable<Measurement<double>> ObserveBurndownRate()
|
||||
{
|
||||
foreach (var kvp in _currentState)
|
||||
{
|
||||
var state = kvp.Value;
|
||||
if (state.PreviousTotalUnknowns > 0)
|
||||
{
|
||||
var rate = 1.0 - ((double)state.TotalUnknowns / state.PreviousTotalUnknowns);
|
||||
var tags = CreateTags(kvp.Key.TenantId, kvp.Key.SurfaceId);
|
||||
yield return new Measurement<double>(Math.Max(0, rate), tags);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private IEnumerable<Measurement<double>> ObserveBudgetUtilization()
|
||||
{
|
||||
foreach (var kvp in _currentState)
|
||||
{
|
||||
var state = kvp.Value;
|
||||
if (state.BudgetLimit > 0)
|
||||
{
|
||||
var utilization = (double)state.TotalUnknowns / state.BudgetLimit;
|
||||
var tags = CreateTags(kvp.Key.TenantId, kvp.Key.SurfaceId);
|
||||
yield return new Measurement<double>(utilization, tags);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private static TagList CreateTags(string tenantId, string surfaceId)
|
||||
{
|
||||
return new TagList
|
||||
{
|
||||
{ "tenant_id", NormalizeLabel(tenantId) },
|
||||
{ "surface_id", NormalizeLabel(surfaceId) }
|
||||
};
|
||||
}
|
||||
|
||||
private static string NormalizeLabel(string value)
|
||||
{
|
||||
return string.IsNullOrWhiteSpace(value) ? "unknown" : value.ToLowerInvariant();
|
||||
}
|
||||
|
||||
public void Dispose()
|
||||
{
|
||||
_meter.Dispose();
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Current state of unknowns for a surface.
|
||||
/// </summary>
|
||||
public sealed record UnknownsState
|
||||
{
|
||||
public required string TenantId { get; init; }
|
||||
public required string SurfaceId { get; init; }
|
||||
public required int TotalUnknowns { get; init; }
|
||||
public required int BudgetLimit { get; init; }
|
||||
public required DateTimeOffset Timestamp { get; init; }
|
||||
public int PreviousTotalUnknowns { get; init; }
|
||||
public int ResolvedThisPeriod { get; init; }
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Projection for unknowns burn-down.
|
||||
/// </summary>
|
||||
public sealed record BurndownProjection
|
||||
{
|
||||
public required int CurrentUnknowns { get; init; }
|
||||
public required int DailyBurnRate { get; init; }
|
||||
public required int EstimatedDaysToZero { get; init; }
|
||||
public required DateTimeOffset ProjectedZeroDate { get; init; }
|
||||
public required int BudgetLimit { get; init; }
|
||||
public required bool IsOverBudget { get; init; }
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Reasons for unknowns resolution.
|
||||
/// </summary>
|
||||
public static class UnknownsResolutionReasons
|
||||
{
|
||||
public const string VexUpdated = "vex_updated";
|
||||
public const string ReachabilityAnalyzed = "reachability_analyzed";
|
||||
public const string RuntimeObserved = "runtime_observed";
|
||||
public const string ManualTriage = "manual_triage";
|
||||
public const string PolicyException = "policy_exception";
|
||||
public const string FalsePositive = "false_positive";
|
||||
public const string AdvisoryUpdated = "advisory_updated";
|
||||
public const string PackageUpgraded = "package_upgraded";
|
||||
public const string ComponentRemoved = "component_removed";
|
||||
}
|
||||
Reference in New Issue
Block a user