// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Buffers;
using System.Text;
using BenchmarkDotNet.Attributes;
 
namespace Microsoft.AspNetCore.WebUtilities.Microbenchmarks;
 
/// <summary>
/// Test internal parsing speed of FormPipeReader without pipe
/// </summary>
public class FormPipeReaderInternalsBenchmark
{
    private readonly byte[] _singleUtf8 = Encoding.UTF8.GetBytes("foo=bar&baz=boo&haha=hehe&lol=temp");
    private readonly byte[] _firstUtf8 = Encoding.UTF8.GetBytes("foo=bar&baz=bo");
    private readonly byte[] _secondUtf8 = Encoding.UTF8.GetBytes("o&haha=hehe&lol=temp");
    private FormPipeReader _formPipeReader;
 
    [IterationSetup]
    public void Setup()
    {
        _formPipeReader = new FormPipeReader(null);
    }
 
    [Benchmark]
    public void ReadUtf8Data()
    {
        var buffer = new ReadOnlySequence<byte>(_singleUtf8);
        KeyValueAccumulator accum = default;
 
        _formPipeReader.ParseFormValues(ref buffer, ref accum, isFinalBlock: true);
    }
 
    [Benchmark]
    public void ReadUtf8MultipleBlockData()
    {
        var buffer = ReadOnlySequenceFactory.CreateSegments(_firstUtf8, _secondUtf8);
        KeyValueAccumulator accum = default;
 
        _formPipeReader.ParseFormValues(ref buffer, ref accum, isFinalBlock: true);
    }
}