using FluentAssertions;
using StellaOps.TestKit;
using StellaOps.Testing.Determinism;
using Xunit;

namespace StellaOps.Testing.Determinism.Tests;

public sealed partial class DeterminismManifestTests
{
    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void ComputeCanonicalHash_ProducesDeterministicHash()
    {
        var manifest = CreateSampleManifest();

        var hash1 = DeterminismManifestWriter.ComputeCanonicalHash(manifest);
        var hash2 = DeterminismManifestWriter.ComputeCanonicalHash(manifest);

        hash1.Should().Be(hash2, "Same manifest should produce same hash");
        hash1.Should().MatchRegex("^[0-9a-f]{64}$", "Hash should be 64-character hex string");
    }
}