Files
git.stella-ops.org/src/StellaOps.Excititor.Attestation.Tests/VexDsseBuilderTests.cs
2025-10-18 20:00:46 +03:00

53 lines
2.0 KiB
C#

using System.Collections.Immutable;
using Microsoft.Extensions.Logging.Abstractions;
using StellaOps.Excititor.Attestation.Dsse;
using StellaOps.Excititor.Attestation.Models;
using StellaOps.Excititor.Attestation.Signing;
using StellaOps.Excititor.Core;
namespace StellaOps.Excititor.Attestation.Tests;
public sealed class VexDsseBuilderTests
{
[Fact]
public async Task CreateEnvelopeAsync_ProducesDeterministicPayload()
{
var signer = new FakeSigner("signature-value", "key-1");
var builder = new VexDsseBuilder(signer, NullLogger<VexDsseBuilder>.Instance);
var request = new VexAttestationRequest(
ExportId: "exports/123",
QuerySignature: new VexQuerySignature("filters"),
Artifact: new VexContentAddress("sha256", "deadbeef"),
Format: VexExportFormat.Json,
CreatedAt: DateTimeOffset.UtcNow,
SourceProviders: ImmutableArray.Create("vendor"),
Metadata: ImmutableDictionary<string, string>.Empty);
var envelope = await builder.CreateEnvelopeAsync(request, request.Metadata, CancellationToken.None);
Assert.Equal("application/vnd.in-toto+json", envelope.PayloadType);
Assert.Single(envelope.Signatures);
Assert.Equal("signature-value", envelope.Signatures[0].Signature);
Assert.Equal("key-1", envelope.Signatures[0].KeyId);
var digest = VexDsseBuilder.ComputeEnvelopeDigest(envelope);
Assert.StartsWith("sha256:", digest);
}
private sealed class FakeSigner : IVexSigner
{
private readonly string _signature;
private readonly string _keyId;
public FakeSigner(string signature, string keyId)
{
_signature = signature;
_keyId = keyId;
}
public ValueTask<VexSignedPayload> SignAsync(ReadOnlyMemory<byte> payload, CancellationToken cancellationToken)
=> ValueTask.FromResult(new VexSignedPayload(_signature, _keyId));
}
}