using StellaOps.TestKit;
using Xunit;

namespace StellaOps.Canonical.Json.Tests;

public partial class CanonVersionTests
{
    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void HashVersioned_DiffersFromLegacyHash()
    {
        var obj = new { foo = "bar", count = 42 };

        var legacyHash = CanonJson.Hash(obj);
        var versionedHash = CanonJson.HashVersioned(obj);

        Assert.NotEqual(legacyHash, versionedHash);
    }

    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void HashVersionedPrefixed_DiffersFromLegacyHashPrefixed()
    {
        var obj = new { foo = "bar", count = 42 };

        var legacyHash = CanonJson.HashPrefixed(obj);
        var versionedHash = CanonJson.HashVersionedPrefixed(obj);

        Assert.NotEqual(legacyHash, versionedHash);
        Assert.StartsWith("sha256:", versionedHash);
        Assert.StartsWith("sha256:", legacyHash);
    }

    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void HashVersioned_SameInput_ProducesSameHash()
    {
        var obj = new { foo = "bar", count = 42 };

        var hash1 = CanonJson.HashVersioned(obj);
        var hash2 = CanonJson.HashVersioned(obj);

        Assert.Equal(hash1, hash2);
    }

    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void HashVersioned_DifferentVersions_ProduceDifferentHashes()
    {
        var obj = new { foo = "bar" };

        var hashV1 = CanonJson.HashVersioned(obj, "stella:canon:v1");
        var hashV2 = CanonJson.HashVersioned(obj, "stella:canon:v2");

        Assert.NotEqual(hashV1, hashV2);
    }
}