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validation in DrawImageTest

pull/910/head
Anton Firszov 7 years ago
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7e8357c539
commit
cf8005deb2
4 changed files with 192 additions and 207 deletions
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  1. 198
      tests/ImageSharp.Tests/Drawing/DrawImageTest.cs
  2. 174
      tests/ImageSharp.Tests/Drawing/DrawImageTests.cs
  3. 25
      tests/ImageSharp.Tests/TestUtilities/TestImageExtensions.cs
  4. 2
      tests/Images/External

198
tests/ImageSharp.Tests/Drawing/DrawImageTest.cs
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@ -1,198 +0,0 @@
// Copyright (c) Six Labors and contributors.
// Licensed under the Apache License, Version 2.0.
using System;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Processing;
using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
using SixLabors.Primitives;
using Xunit;
namespace SixLabors.ImageSharp.Tests
{
[GroupOutput("Drawing")]
public class DrawImageTest : FileTestBase
{
private const PixelTypes PixelTypes = Tests.PixelTypes.Rgba32;
public static readonly string[] TestFiles = {
TestImages.Jpeg.Baseline.Calliphora,
TestImages.Bmp.Car,
TestImages.Png.Splash,
TestImages.Gif.Rings
};
[Theory]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Normal)]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Multiply)]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Add)]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Subtract)]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Screen)]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Darken)]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Lighten)]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Overlay)]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.HardLight)]
public void ImageShouldApplyDrawImage<TPixel>(TestImageProvider<TPixel> provider, PixelColorBlendingMode mode)
where TPixel : struct, IPixel<TPixel>
{
using (Image<TPixel> image = provider.GetImage())
using (var blend = Image.Load<TPixel>(TestFile.Create(TestImages.Bmp.Car).Bytes))
{
blend.Mutate(x => x.Resize(image.Width / 2, image.Height / 2));
image.Mutate(x => x.DrawImage(blend, new Point(image.Width / 4, image.Height / 4), mode, .75f));
image.DebugSave(provider, new { mode });
}
}
[Theory]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.Normal)]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.Multiply)]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.Add)]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.Subtract)]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.Screen)]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.Darken)]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.Lighten)]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.Overlay)]
[WithFile(TestImages.Png.Rainbow, PixelTypes, PixelColorBlendingMode.HardLight)]
public void ImageBlendingMatchesSvgSpecExamples<TPixel>(TestImageProvider<TPixel> provider, PixelColorBlendingMode mode)
where TPixel : struct, IPixel<TPixel>
{
using (Image<TPixel> background = provider.GetImage())
using (var source = Image.Load<TPixel>(TestFile.Create(TestImages.Png.Ducky).Bytes))
{
background.Mutate(x => x.DrawImage(source, mode, 1F));
VerifyImage(provider, mode, background);
}
}
[Theory]
[WithFileCollection(nameof(TestFiles), PixelTypes, PixelColorBlendingMode.Normal)]
public void ImageShouldDrawTransformedImage<TPixel>(TestImageProvider<TPixel> provider, PixelColorBlendingMode mode)
where TPixel : struct, IPixel<TPixel>
{
using (Image<TPixel> image = provider.GetImage())
using (var blend = Image.Load<TPixel>(TestFile.Create(TestImages.Bmp.Car).Bytes))
{
AffineTransformBuilder builder = new AffineTransformBuilder()
.AppendRotationDegrees(45F)
.AppendScale(new SizeF(.25F, .25F))
.AppendTranslation(new PointF(10, 10));
// Apply a background color so we can see the translation.
blend.Mutate(x => x.Transform(builder));
blend.Mutate(x => x.BackgroundColor(Color.HotPink));
// Lets center the matrix so we can tell whether any cut-off issues we may have belong to the drawing processor
var position = new Point((image.Width - blend.Width) / 2, (image.Height - blend.Height) / 2);
image.Mutate(x => x.DrawImage(blend, position, mode, .75F));
image.DebugSave(provider, new[] { "Transformed" });
}
}
[Theory]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32)]
public void ImageShouldHandleNegativeLocation(TestImageProvider<Rgba32> provider)
{
using (Image<Rgba32> background = provider.GetImage())
using (var overlay = new Image<Rgba32>(50, 50))
{
overlay.Mutate(x => x.Fill(Rgba32.Black));
const int xy = -25;
Rgba32 backgroundPixel = background[0, 0];
Rgba32 overlayPixel = overlay[Math.Abs(xy) + 1, Math.Abs(xy) + 1];
background.Mutate(x => x.DrawImage(overlay, new Point(xy, xy), PixelColorBlendingMode.Normal, 1F));
Assert.Equal(Rgba32.White, backgroundPixel);
Assert.Equal(overlayPixel, background[0, 0]);
background.DebugSave(provider, testOutputDetails: "Negative");
}
}
[Theory]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32)]
public void ImageShouldHandlePositiveLocation(TestImageProvider<Rgba32> provider)
{
using (Image<Rgba32> background = provider.GetImage())
using (var overlay = new Image<Rgba32>(50, 50))
{
overlay.Mutate(x => x.Fill(Rgba32.Black));
const int xy = 25;
Rgba32 backgroundPixel = background[xy - 1, xy - 1];
Rgba32 overlayPixel = overlay[0, 0];
background.Mutate(x => x.DrawImage(overlay, new Point(xy, xy), PixelColorBlendingMode.Normal, 1F));
Assert.Equal(Rgba32.White, backgroundPixel);
Assert.Equal(overlayPixel, background[xy, xy]);
background.DebugSave(provider, testOutputDetails: "Positive");
}
}
[Theory]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32)]
public void ImageShouldHandlePositiveLocationTruncatedOverlay(TestImageProvider<Rgba32> provider)
{
using (Image<Rgba32> background = provider.GetImage())
using (var overlay = new Image<Rgba32>(50, 50))
{
overlay.Mutate(x => x.Fill(Rgba32.Black));
const int xy = 75;
Rgba32 backgroundPixel = background[xy - 1, xy - 1];
Rgba32 overlayPixel = overlay[0, 0];
background.Mutate(x => x.DrawImage(overlay, new Point(xy, xy), PixelColorBlendingMode.Normal, 1F));
Assert.Equal(Rgba32.White, backgroundPixel);
Assert.Equal(overlayPixel, background[xy, xy]);
background.DebugSave(provider, testOutputDetails: "PositiveTruncated");
}
}
[Theory]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32, -30, -30)]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32, 130, -30)]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32, 130, 130)]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32, -30, 130)]
public void NonOverlappingImageThrows(TestImageProvider<Rgba32> provider, int x, int y)
{
using (Image<Rgba32> background = provider.GetImage())
using (var overlay = new Image<Rgba32>(Configuration.Default, 10, 10, Rgba32.Black))
{
ImageProcessingException ex = Assert.Throws<ImageProcessingException>(Test);
Assert.Contains("does not overlap", ex.ToString());
void Test()
{
background.Mutate(context => context.DrawImage(overlay, new Point(x, y), GraphicsOptions.Default));
}
}
}
private static void VerifyImage<TPixel>(
TestImageProvider<TPixel> provider,
PixelColorBlendingMode mode,
Image<TPixel> img)
where TPixel : struct, IPixel<TPixel>
{
img.DebugSave(
provider,
new { mode },
appendPixelTypeToFileName: false,
appendSourceFileOrDescription: false);
var comparer = ImageComparer.TolerantPercentage(0.01F, 3);
img.CompareFirstFrameToReferenceOutput(comparer,
provider,
new { mode },
appendPixelTypeToFileName: false,
appendSourceFileOrDescription: false);
}
}
}

174
tests/ImageSharp.Tests/Drawing/DrawImageTests.cs
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@ -0,0 +1,174 @@
// Copyright (c) Six Labors and contributors.
// Licensed under the Apache License, Version 2.0.
using System;
using SixLabors.ImageSharp.Formats;
using SixLabors.ImageSharp.Formats.Png;
using SixLabors.ImageSharp.PixelFormats;
using SixLabors.ImageSharp.Processing;
using SixLabors.ImageSharp.Tests.TestUtilities.ImageComparison;
using SixLabors.Primitives;
using SixLabors.Shapes;
using Xunit;
namespace SixLabors.ImageSharp.Tests.Drawing
{
[GroupOutput("Drawing")]
public class DrawImageTests
{
public static readonly TheoryData<PixelColorBlendingMode> BlendingModes = new TheoryData<PixelColorBlendingMode>
{
PixelColorBlendingMode.Normal,
PixelColorBlendingMode.Multiply,
PixelColorBlendingMode.Add,
PixelColorBlendingMode.Subtract,
PixelColorBlendingMode.Screen,
PixelColorBlendingMode.Darken,
PixelColorBlendingMode.Lighten,
PixelColorBlendingMode.Overlay,
PixelColorBlendingMode.HardLight,
};
[Theory]
[WithFile( TestImages.Png.Rainbow,nameof(BlendingModes), PixelTypes.Rgba32)]
public void ImageBlendingMatchesSvgSpecExamples<TPixel>(TestImageProvider<TPixel> provider, PixelColorBlendingMode mode)
where TPixel : struct, IPixel<TPixel>
{
using (Image<TPixel> background = provider.GetImage())
using (var source = Image.Load<TPixel>(TestFile.Create(TestImages.Png.Ducky).Bytes))
{
background.Mutate(x => x.DrawImage(source, mode, 1F));
background.DebugSave(
provider,
new { mode = mode },
appendPixelTypeToFileName: false,
appendSourceFileOrDescription: false);
var comparer = ImageComparer.TolerantPercentage(0.01F);
background.CompareToReferenceOutput(comparer,
provider,
new { mode = mode },
appendPixelTypeToFileName: false,
appendSourceFileOrDescription: false);
}
}
[Theory]
[WithFile(TestImages.Png.CalliphoraPartial, PixelTypes.Rgba32, TestImages.Png.Splash, PixelColorBlendingMode.Normal, 1f)]
[WithFile(TestImages.Png.CalliphoraPartial, PixelTypes.Bgr24, TestImages.Png.Bike, PixelColorBlendingMode.Normal, 1f)]
[WithFile(TestImages.Png.CalliphoraPartial, PixelTypes.Rgba32, TestImages.Png.Splash, PixelColorBlendingMode.Normal, 0.75f)]
[WithFile(TestImages.Png.CalliphoraPartial, PixelTypes.Rgba32, TestImages.Png.Splash, PixelColorBlendingMode.Normal, 0.25f)]
[WithTestPatternImages(400, 400, PixelTypes.Rgba32, TestImages.Png.Splash, PixelColorBlendingMode.Multiply, 0.5f)]
[WithTestPatternImages(400, 400, PixelTypes.Rgba32, TestImages.Png.Splash, PixelColorBlendingMode.Add, 0.5f)]
[WithTestPatternImages(400, 400, PixelTypes.Rgba32, TestImages.Png.Splash, PixelColorBlendingMode.Subtract, 0.5f)]
[WithFile(TestImages.Png.Rgb48Bpp, PixelTypes.Rgba64, TestImages.Png.Splash, PixelColorBlendingMode.Normal, 1f)]
[WithFile(TestImages.Png.Rgb48Bpp, PixelTypes.Rgba64, TestImages.Png.Splash, PixelColorBlendingMode.Normal, 0.25f)]
public void WorksWithDifferentConfigurations<TPixel>(
TestImageProvider<TPixel> provider,
string brushImage,
PixelColorBlendingMode mode,
float opacity)
where TPixel : struct, IPixel<TPixel>
{
using (Image<TPixel> image = provider.GetImage())
using (var blend = Image.Load<TPixel>(TestFile.Create(brushImage).Bytes))
{
Size size = new Size(image.Width * 3 / 4, image.Height *3/ 4);
Point position = new Point(image.Width / 8, image.Height / 8);
blend.Mutate(x => x.Resize(size.Width, size.Height, KnownResamplers.Bicubic));
image.Mutate(x => x.DrawImage(blend, position, mode, opacity));
FormattableString testInfo = $"{System.IO.Path.GetFileNameWithoutExtension(brushImage)}-{mode}-{opacity}";
PngEncoder encoder = new PngEncoder();
if (provider.PixelType == PixelTypes.Rgba64)
{
encoder.BitDepth = PngBitDepth.Bit16;
}
image.DebugSave(provider, testInfo, encoder: encoder);
image.CompareToReferenceOutput(provider, testInfo);
}
}
[Theory]
[WithSolidFilledImages(100, 100, "White", PixelTypes.Rgba32, 0, 0)]
[WithSolidFilledImages(100, 100, "White", PixelTypes.Rgba32, 25, 25)]
[WithSolidFilledImages(100, 100, "White", PixelTypes.Rgba32, 75, 50)]
[WithSolidFilledImages(100, 100, "White", PixelTypes.Rgba32, -25, -30)]
public void WorksWithDifferentLocations(TestImageProvider<Rgba32> provider, int x, int y)
{
using (Image<Rgba32> background = provider.GetImage())
using (var overlay = new Image<Rgba32>(50, 50))
{
overlay.Mutate(c => c.Fill(Rgba32.Black));
background.Mutate(c => c.DrawImage(overlay, new Point(x, y), PixelColorBlendingMode.Normal, 1F));
background.DebugSave(
provider,
testOutputDetails: $"{x}_{y}",
appendPixelTypeToFileName: false,
appendSourceFileOrDescription: false);
background.CompareToReferenceOutput(
provider,
testOutputDetails: $"{x}_{y}",
appendPixelTypeToFileName: false,
appendSourceFileOrDescription: false);
}
}
[Theory]
[WithFile(TestImages.Png.Splash, PixelTypes.Rgba32)]
public void DrawTransformed<TPixel>(TestImageProvider<TPixel> provider)
where TPixel : struct, IPixel<TPixel>
{
using (Image<TPixel> image = provider.GetImage())
using (var blend = Image.Load<TPixel>(TestFile.Create(TestImages.Bmp.Car).Bytes))
{
AffineTransformBuilder builder = new AffineTransformBuilder()
.AppendRotationDegrees(45F)
.AppendScale(new SizeF(.25F, .25F))
.AppendTranslation(new PointF(10, 10));
// Apply a background color so we can see the translation.
blend.Mutate(x => x.Transform(builder));
blend.Mutate(x => x.BackgroundColor(Color.HotPink));
// Lets center the matrix so we can tell whether any cut-off issues we may have belong to the drawing processor
var position = new Point((image.Width - blend.Width) / 2, (image.Height - blend.Height) / 2);
image.Mutate(x => x.DrawImage(blend, position, .75F));
image.DebugSave(provider, appendSourceFileOrDescription: false, appendPixelTypeToFileName: false);
image.CompareToReferenceOutput(provider, appendSourceFileOrDescription: false, appendPixelTypeToFileName: false);
}
}
[Theory]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32, -30, -30)]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32, 130, -30)]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32, 130, 130)]
[WithSolidFilledImages(100, 100, 255, 255, 255, PixelTypes.Rgba32, -30, 130)]
public void NonOverlappingImageThrows(TestImageProvider<Rgba32> provider, int x, int y)
{
using (Image<Rgba32> background = provider.GetImage())
using (var overlay = new Image<Rgba32>(Configuration.Default, 10, 10, Rgba32.Black))
{
ImageProcessingException ex = Assert.Throws<ImageProcessingException>(Test);
Assert.Contains("does not overlap", ex.ToString());
void Test()
{
background.Mutate(context => context.DrawImage(overlay, new Point(x, y), GraphicsOptions.Default));
}
}
}
}
}

25
tests/ImageSharp.Tests/TestUtilities/TestImageExtensions.cs
View File

@ -61,7 +61,8 @@ namespace SixLabors.ImageSharp.Tests
FormattableString testOutputDetails,
string extension = "png",
bool appendPixelTypeToFileName = true,
bool appendSourceFileOrDescription = true)
bool appendSourceFileOrDescription = true,
IImageEncoder encoder = null)
where TPixel : struct, IPixel<TPixel>
{
return image.DebugSave(
@ -69,7 +70,8 @@ namespace SixLabors.ImageSharp.Tests
(object)testOutputDetails,
extension,
appendPixelTypeToFileName,
appendSourceFileOrDescription);
appendSourceFileOrDescription,
encoder);
}
/// <summary>
@ -82,13 +84,15 @@ namespace SixLabors.ImageSharp.Tests
/// <param name="extension">The extension</param>
/// <param name="appendPixelTypeToFileName">A boolean indicating whether to append the pixel type to the output file name.</param>
/// <param name="appendSourceFileOrDescription">A boolean indicating whether to append <see cref="ITestImageProvider.SourceFileOrDescription"/> to the test output file name.</param>
/// <param name="encoder">Custom encoder to use.</param>
public static Image<TPixel> DebugSave<TPixel>(
this Image<TPixel> image,
ITestImageProvider provider,
object testOutputDetails = null,
string extension = "png",
bool appendPixelTypeToFileName = true,
bool appendSourceFileOrDescription = true)
bool appendSourceFileOrDescription = true,
IImageEncoder encoder = null)
where TPixel : struct, IPixel<TPixel>
{
if (TestEnvironment.RunsOnCI)
@ -102,7 +106,8 @@ namespace SixLabors.ImageSharp.Tests
extension,
testOutputDetails: testOutputDetails,
appendPixelTypeToFileName: appendPixelTypeToFileName,
appendSourceFileOrDescription: appendSourceFileOrDescription);
appendSourceFileOrDescription: appendSourceFileOrDescription,
encoder: encoder);
return image;
}
@ -255,6 +260,7 @@ namespace SixLabors.ImageSharp.Tests
/// <param name="grayscale">A boolean indicating whether we should debug save + compare against a grayscale image, smaller in size.</param>
/// <param name="appendPixelTypeToFileName">A boolean indicating whether to append the pixel type to the output file name.</param>
/// <param name="appendSourceFileOrDescription">A boolean indicating whether to append <see cref="ITestImageProvider.SourceFileOrDescription"/> to the test output file name.</param>
/// <param name="decoder">A custom decoder.</param>
/// <returns></returns>
public static Image<TPixel> CompareToReferenceOutput<TPixel>(
this Image<TPixel> image,
@ -264,7 +270,8 @@ namespace SixLabors.ImageSharp.Tests
string extension = "png",
bool grayscale = false,
bool appendPixelTypeToFileName = true,
bool appendSourceFileOrDescription = true)
bool appendSourceFileOrDescription = true,
IImageDecoder decoder = null)
where TPixel : struct, IPixel<TPixel>
{
using (Image<TPixel> referenceImage = GetReferenceOutputImage<TPixel>(
@ -272,7 +279,8 @@ namespace SixLabors.ImageSharp.Tests
testOutputDetails,
extension,
appendPixelTypeToFileName,
appendSourceFileOrDescription))
appendSourceFileOrDescription,
decoder))
{
comparer.VerifySimilarity(referenceImage, image);
}
@ -356,7 +364,8 @@ namespace SixLabors.ImageSharp.Tests
object testOutputDetails = null,
string extension = "png",
bool appendPixelTypeToFileName = true,
bool appendSourceFileOrDescription = true)
bool appendSourceFileOrDescription = true,
IImageDecoder decoder = null)
where TPixel : struct, IPixel<TPixel>
{
string referenceOutputFile = provider.Utility.GetReferenceOutputFileName(
@ -370,7 +379,7 @@ namespace SixLabors.ImageSharp.Tests
throw new System.IO.FileNotFoundException("Reference output file missing: " + referenceOutputFile, referenceOutputFile);
}
IImageDecoder decoder = TestEnvironment.GetReferenceDecoder(referenceOutputFile);
decoder = decoder ?? TestEnvironment.GetReferenceDecoder(referenceOutputFile);
return Image.Load<TPixel>(referenceOutputFile, decoder);
}

2
tests/Images/External

@ -1 +1 @@
Subproject commit d83843deedc43712f29f631aab090640b4f54946
Subproject commit dc5afda9a4ad69dc3526d49ceb1d27610064f2af
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