using System.IO;
using System.Security.Cryptography;
using StellaOps.Cryptography;
using StellaOps.TestKit;
using Xunit;

namespace StellaOps.Cryptography.Tests;

public sealed partial class DefaultCryptoHashTests
{
    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public void ComputeHashHex_Sha256_MatchesBclLowerHex()
    {
        var hash = CryptoHashFactory.CreateDefault();
        var expected = Convert.ToHexStringLower(SHA256.HashData(_sample));
        var actual = hash.ComputeHashHex(_sample, HashAlgorithms.Sha256);
        Assert.Equal(expected, actual);
    }

    [Trait("Category", TestCategories.Unit)]
    [Fact]
    public async Task ComputeHashHex_Sha256_MatchesBclLowerHex_Async()
    {
        var hash = CryptoHashFactory.CreateDefault();
        var expected = Convert.ToHexStringLower(SHA256.HashData(_sample));
        await using var stream = new MemoryStream(_sample);
        var actual = await hash.ComputeHashHexAsync(stream, HashAlgorithms.Sha256);
        Assert.Equal(expected, actual);
    }
}