// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Globalization;
using BenchmarkDotNet.Attributes;
using Microsoft.AspNetCore.Connections;
using Microsoft.AspNetCore.Server.Kestrel.Core.Internal.Infrastructure;
 
namespace Microsoft.AspNetCore.Server.Kestrel.Microbenchmarks;
 
public class StringUtilitiesBenchmark
{
    private const int Iterations = 500_000;
 
    [Benchmark(Baseline = true, OperationsPerInvoke = Iterations)]
    public void UintToString()
    {
        var connectionId = CorrelationIdGenerator.GetNextId();
        for (uint i = 0; i < Iterations; i++)
        {
            var id = connectionId + ':' + i.ToString("X8", CultureInfo.InvariantCulture);
        }
    }
 
    [Benchmark(OperationsPerInvoke = Iterations)]
    public void ConcatAsHexSuffix()
    {
        var connectionId = CorrelationIdGenerator.GetNextId();
        for (uint i = 0; i < Iterations; i++)
        {
            var id = StringUtilities.ConcatAsHexSuffix(connectionId, ':', i);
        }
    }
}