ImageSharp/tests/ImageSharp.Tests/Formats/Jpg/JpegDecoderTests.Progressive.cs

// Copyright (c) Six Labors.
// Licensed under the Six Labors Split License.

using Microsoft.DotNet.RemoteExecutor;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Tests.TestUtilities;
using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;

// ReSharper disable InconsistentNaming
namespace SixLabors.ImageSharp.Tests.Formats.Jpg;

[Trait("Format", "Jpg")]
public partial class JpegDecoderTests
{
    public const string DecodeProgressiveJpegOutputName = "DecodeProgressiveJpeg";

    [Theory]
    [WithFileCollection(nameof(ProgressiveTestJpegs), PixelTypes.Rgb24)]
    public void DecodeProgressiveJpeg<TPixel>(TestImageProvider<TPixel> provider)
        where TPixel : unmanaged, IPixel<TPixel>
    {
        using Image<TPixel> image = provider.GetImage(JpegDecoder);
        image.DebugSave(provider);

        provider.Utility.TestName = DecodeProgressiveJpegOutputName;
        image.CompareToReferenceOutput(
            GetImageComparer(provider),
            provider,
            appendPixelTypeToFileName: false);
    }

    [Theory]
    [WithFile(TestImages.Jpeg.Baseline.ArithmeticCodingProgressive01, PixelTypes.Rgb24)]
    [WithFile(TestImages.Jpeg.Baseline.ArithmeticCodingProgressive02, PixelTypes.Rgb24)]
    public void DecodeProgressiveJpeg_WithArithmeticCoding<TPixel>(TestImageProvider<TPixel> provider)
        where TPixel : unmanaged, IPixel<TPixel>
    {
        using Image<TPixel> image = provider.GetImage(JpegDecoder);
        image.DebugSave(provider);
        image.CompareToOriginal(provider, ImageComparer.Tolerant(0.004f), ReferenceDecoder);
    }

    [Theory]
    [WithFile(TestImages.Jpeg.Progressive.Progress, PixelTypes.Rgb24)]
    public void DecodeProgressiveJpeg_WithLimitedAllocatorBufferCapacity(TestImageProvider<Rgb24> provider)
    {
        static void RunTest(string providerDump, string nonContiguousBuffersStr)
        {
            TestImageProvider<Rgb24> provider =
                BasicSerializer.Deserialize<TestImageProvider<Rgb24>>(providerDump);

            provider.LimitAllocatorBufferCapacity().InBytesSqrt(200);

            using Image<Rgb24> image = provider.GetImage(JpegDecoder);
            image.DebugSave(provider, nonContiguousBuffersStr);

            provider.Utility.TestName = DecodeProgressiveJpegOutputName;
            image.CompareToReferenceOutput(
                GetImageComparer(provider),
                provider,
                appendPixelTypeToFileName: false);
        }

        string providerDump = BasicSerializer.Serialize(provider);

        RemoteExecutor.Invoke(
            RunTest,
            providerDump,
            "Disco").Dispose();
    }
}