ImageSharp/tests/ImageSharp.Tests/TestUtilities/Attributes/WithFileAttribute.cs

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

using System.Reflection;

namespace SixLabors.ImageSharp.Tests;

/// <summary>
/// Triggers passing <see cref="TestImageProvider{TPixel}"/> instances which read an image from the given file
/// One <see cref="TestImageProvider{TPixel}"/> instance will be passed for each the pixel format defined by the pixelTypes parameter
/// </summary>
public class WithFileAttribute : ImageDataAttributeBase
{
    private readonly string fileName;

    /// <summary>
    /// Triggers passing <see cref="TestImageProvider{TPixel}"/> instances which read an image from the given file
    /// One <see cref="TestImageProvider{TPixel}"/> instance will be passed for each the pixel format defined by the pixelTypes parameter
    /// </summary>
    /// <param name="fileName">The name of the file</param>
    /// <param name="pixelTypes">The requested pixel types</param>
    /// <param name="additionalParameters">Additional theory parameter values</param>
    public WithFileAttribute(string fileName, PixelTypes pixelTypes, params object[] additionalParameters)
        : base(null, pixelTypes, additionalParameters)
    {
        this.fileName = fileName;
    }

    /// <summary>
    /// Triggers passing <see cref="TestImageProvider{TPixel}"/> instances which read an image from the given file
    /// One <see cref="TestImageProvider{TPixel}"/> instance will be passed for each the pixel format defined by the pixelTypes parameter
    /// </summary>
    /// <param name="fileName">The name of the file</param>
    /// <param name="pixelTypes">The requested pixel types</param>
    /// <param name="additionalParameters">Additional theory parameter values</param>
    public WithFileAttribute(string fileName, string dataMemberName, PixelTypes pixelTypes, params object[] additionalParameters)
        : base(dataMemberName, pixelTypes, additionalParameters)
    {
        this.fileName = fileName;
    }

    protected override object[] GetFactoryMethodArgs(MethodInfo testMethod, Type factoryType) => [this.fileName];

    protected override string GetFactoryMethodName(MethodInfo testMethod) => "File";
}