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Add PixelColors image assert

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This commit is contained in:
Ben Olden-Cooligan 2022-06-30 19:54:21 -07:00
parent f66ea1cb05
commit f69ca91d1f
2 changed files with 49 additions and 1 deletions
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47
NAPS2.Sdk.Tests/Asserts/ImageAsserts.cs
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@ -1,4 +1,8 @@
using Xunit;
using System.Collections;
using System.Drawing;
using NAPS2.Images.Gdi;
using Xunit;
using Xunit.Sdk;
namespace NAPS2.Sdk.Tests.Asserts;
@ -77,4 +81,45 @@ public static class ImageAsserts
second.Unlock(lock2);
}
}
public static void PixelColors(IMemoryImage image, PixelColorData colorData)
{
var bitmap = ((GdiImage) image).Bitmap;
foreach (var data in colorData)
{
var (x, y) = data.Item1;
var (r, g, b) = data.Item2;
var color = bitmap.GetPixel(x, y);
var expected = Color.FromArgb(r, g, b);
if (color != expected)
{
throw new AssertActualExpectedException(expected, color, $"Mismatched color at ({x}, {y})");
}
}
}
public class PixelColorData : IEnumerable<((int x, int y), (int r, int g, int b))>
{
private readonly List<((int x, int y), (int r, int g, int b))> _colors = new();
public void Add((int x, int y) pos, (int r, int g, int b) color)
{
_colors.Add((pos, color));
}
public void Add((int x, int y) pos, Color color)
{
_colors.Add((pos, (color.R, color.G, color.B)));
}
public IEnumerator<((int x, int y), (int r, int g, int b))> GetEnumerator()
{
return _colors.GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
}
}

3
NAPS2.Sdk.Tests/Scan/TwainMemoryBufferReaderTests.cs
View File

@ -33,6 +33,7 @@ public class TwainMemoryBufferReaderTests
};
var imageData = CreateColorImageData(2, 2);
var image = Create24BitImage(2, 2);
TwainMemoryBufferReader.CopyBufferToImage(buffer, imageData, image);
ImageAsserts.PixelColors(image, new()
@ -60,6 +61,7 @@ public class TwainMemoryBufferReaderTests
};
var imageData = CreateGrayscaleImageData(2, 2);
var image = Create24BitImage(2, 2);
TwainMemoryBufferReader.CopyBufferToImage(buffer, imageData, image);
ImageAsserts.PixelColors(image, new()
@ -87,6 +89,7 @@ public class TwainMemoryBufferReaderTests
};
var imageData = CreateBlackWhiteImageData(2, 2);
var image = Create1BitImage(2, 2);
TwainMemoryBufferReader.CopyBufferToImage(buffer, imageData, image);
ImageAsserts.PixelColors(image, new()