mirror of https://github.com/SixLabors/ImageSharp
Brian Popow
6 years ago
2 changed files with 169 additions and 164 deletions
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// Copyright (c) Six Labors and contributors.
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// Licensed under the Apache License, Version 2.0.
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using System; |
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using System.Reflection; |
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using Castle.Core.Internal; |
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using SixLabors.ImageSharp.Formats; |
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using SixLabors.ImageSharp.PixelFormats; |
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using SixLabors.ImageSharp.Processing; |
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using Xunit.Abstractions; |
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namespace SixLabors.ImageSharp.Tests |
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{ |
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/// <summary>
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/// Provides <see cref="Image{TPixel}" /> instances for parametric unit tests.
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/// </summary>
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/// <typeparam name="TPixel">The pixel format of the image.</typeparam>
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public abstract partial class TestImageProvider<TPixel> : ITestImageProvider |
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where TPixel : struct, IPixel<TPixel> |
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{ |
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public PixelTypes PixelType { get; private set; } = typeof(TPixel).GetPixelType(); |
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public virtual string SourceFileOrDescription => string.Empty; |
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public Configuration Configuration { get; set; } = Configuration.CreateDefaultInstance(); |
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/// <summary>
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/// Gets the utility instance to provide information about the test image & manage input/output.
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/// </summary>
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public ImagingTestCaseUtility Utility { get; private set; } |
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public string TypeName { get; private set; } |
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public string MethodName { get; private set; } |
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public string OutputSubfolderName { get; private set; } |
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public static TestImageProvider<TPixel> BasicTestPattern( |
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int width, |
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int height, |
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MethodInfo testMethod = null, |
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PixelTypes pixelTypeOverride = PixelTypes.Undefined) |
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=> new BasicTestPatternProvider(width, height).Init(testMethod, pixelTypeOverride); |
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public static TestImageProvider<TPixel> TestPattern( |
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int width, |
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int height, |
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MethodInfo testMethod = null, |
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PixelTypes pixelTypeOverride = PixelTypes.Undefined) |
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=> new TestPatternProvider(width, height).Init(testMethod, pixelTypeOverride); |
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public static TestImageProvider<TPixel> Blank( |
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int width, |
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int height, |
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MethodInfo testMethod = null, |
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PixelTypes pixelTypeOverride = PixelTypes.Undefined) |
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=> new BlankProvider(width, height).Init(testMethod, pixelTypeOverride); |
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public static TestImageProvider<TPixel> File( |
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string filePath, |
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MethodInfo testMethod = null, |
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PixelTypes pixelTypeOverride = PixelTypes.Undefined) |
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{ |
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return new FileProvider(filePath).Init(testMethod, pixelTypeOverride); |
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} |
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public static TestImageProvider<TPixel> Lambda( |
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Func<Image<TPixel>> factoryFunc, |
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MethodInfo testMethod = null, |
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PixelTypes pixelTypeOverride = PixelTypes.Undefined) |
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=> new LambdaProvider(factoryFunc).Init(testMethod, pixelTypeOverride); |
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public static TestImageProvider<TPixel> Solid( |
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int width, |
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int height, |
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byte r, |
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byte g, |
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byte b, |
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byte a = 255, |
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MethodInfo testMethod = null, |
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PixelTypes pixelTypeOverride = PixelTypes.Undefined) |
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{ |
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return new SolidProvider(width, height, r, g, b, a).Init(testMethod, pixelTypeOverride); |
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} |
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/// <summary>
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/// Returns an <see cref="Image{TPixel}"/> instance to the test case with the necessary traits.
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/// </summary>
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/// <returns>A test image.</returns>
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public abstract Image<TPixel> GetImage(); |
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public virtual Image<TPixel> GetImage(IImageDecoder decoder) |
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{ |
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throw new NotSupportedException($"Decoder specific GetImage() is not supported with {this.GetType().Name}!"); |
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} |
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/// <summary>
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/// Returns an <see cref="Image{TPixel}"/> instance to the test case with the necessary traits.
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/// </summary>
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/// <returns>A test image.</returns>
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public Image<TPixel> GetImage(Action<IImageProcessingContext> operationsToApply) |
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{ |
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Image<TPixel> img = this.GetImage(); |
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img.Mutate(operationsToApply); |
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return img; |
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} |
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public virtual void Deserialize(IXunitSerializationInfo info) |
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{ |
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PixelTypes pixelType = info.GetValue<PixelTypes>("PixelType"); |
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string typeName = info.GetValue<string>("TypeName"); |
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string methodName = info.GetValue<string>("MethodName"); |
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string outputSubfolderName = info.GetValue<string>("OutputSubfolderName"); |
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this.Init(typeName, methodName, outputSubfolderName, pixelType); |
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} |
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public virtual void Serialize(IXunitSerializationInfo info) |
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{ |
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info.AddValue("PixelType", this.PixelType); |
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info.AddValue("TypeName", this.TypeName); |
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info.AddValue("MethodName", this.MethodName); |
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info.AddValue("OutputSubfolderName", this.OutputSubfolderName); |
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} |
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protected TestImageProvider<TPixel> Init( |
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string typeName, |
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string methodName, |
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string outputSubfolderName, |
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PixelTypes pixelTypeOverride) |
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{ |
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if (pixelTypeOverride != PixelTypes.Undefined) |
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{ |
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this.PixelType = pixelTypeOverride; |
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} |
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this.TypeName = typeName; |
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this.MethodName = methodName; |
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this.OutputSubfolderName = outputSubfolderName; |
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this.Utility = new ImagingTestCaseUtility |
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{ |
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SourceFileOrDescription = this.SourceFileOrDescription, |
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PixelTypeName = this.PixelType.ToString() |
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}; |
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if (methodName != null) |
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{ |
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this.Utility.Init(typeName, methodName, outputSubfolderName); |
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} |
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return this; |
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} |
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protected TestImageProvider<TPixel> Init(MethodInfo testMethod, PixelTypes pixelTypeOverride) |
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{ |
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string subfolder = testMethod?.DeclaringType.GetAttribute<GroupOutputAttribute>()?.Subfolder |
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?? string.Empty; |
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return this.Init(testMethod?.DeclaringType.Name, testMethod?.Name, subfolder, pixelTypeOverride); |
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} |
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public override string ToString() |
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{ |
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return $"{this.SourceFileOrDescription}[{this.PixelType}]"; |
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} |
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} |
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} |
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