public void GeneratesImageWithCustomHeightWidth(string inputFile, string resourcePath, int expectedOutput)
{
var config = GetConfiguration();
config.IntermediateOutputPath += GetOutputDirectorySuffix((nameof(inputFile), inputFile), (nameof(expectedOutput), expectedOutput));
var generator = new ImageResizeGenerator(config);
var image = new OutputImage
{
Height = expectedOutput,
Width = expectedOutput,
InputFile = Path.Combine(TestConstants.ImageDirectory, inputFile),
OutputFile = Path.Combine(config.IntermediateOutputPath, "dotnetbot.png"),
OutputLink = Path.Combine("Resources", resourcePath, "dotnetbot.png"),
RequiresBackgroundColor = false,
Scale = 0,
ShouldBeVisible = true,
Watermark = null
};
var ex = Record.Exception(() => generator.ProcessImage(image));
Assert.Null(ex);
VerifyImageContents(image);
}
public void AppliesWatermark(string inputImageName, string watermarkImage)
{
var config = GetConfiguration();
config.IntermediateOutputPath += GetOutputDirectorySuffix((nameof(inputImageName), inputImageName), (nameof(watermarkImage), watermarkImage));
var generator = new ImageResizeGenerator(config);
var image = new OutputImage
{
Height = 0,
Width = 0,
InputFile = Path.Combine(TestConstants.WatermarkImageDirectory, $"{inputImageName}.png"),
OutputFile = Path.Combine(config.IntermediateOutputPath, $"{inputImageName}.png"),
OutputLink = Path.Combine("Resources", "drawable-xxxhdpi", $"{inputImageName}.png"),
RequiresBackgroundColor = false,
Scale = 1,
ShouldBeVisible = true,
Watermark = new WatermarkConfiguration
{
SourceFile = Path.Combine(TestConstants.WatermarkImageDirectory, $"{watermarkImage}.png")
}
};
generator.ProcessImage(image);
VerifyImageContents(image);
}
public void AppliesTextBanner(string text, double scale, WatermarkPosition position)
{
var config = GetConfiguration();
config.IntermediateOutputPath += GetOutputDirectorySuffix((nameof(text), text), (nameof(scale), scale), (nameof(position), position));
var generator = new ImageResizeGenerator(config);
var image = new OutputImage
{
Height = 0,
Width = 0,
InputFile = Path.Combine(TestConstants.ImageDirectory, "dotnetbot.png"),
OutputFile = Path.Combine(config.IntermediateOutputPath, "dotnetbot.png"),
OutputLink = Path.Combine("Resources", "drawable-xxxhdpi", "dotnetbot.png"),
RequiresBackgroundColor = true,
Scale = scale,
ShouldBeVisible = true,
Watermark = new WatermarkConfiguration
{
Text = text,
Position = position
}
};
generator.ProcessImage(image);
VerifyImageContents(image);
}
public void AppliesPadding(string inputFile, double paddingFactor)
{
var config = GetConfiguration();
config.IntermediateOutputPath += GetOutputDirectorySuffix((nameof(paddingFactor), paddingFactor), (nameof(inputFile), inputFile));
var generator = new ImageResizeGenerator(config);
var outputFilename = $"{Path.GetFileNameWithoutExtension(inputFile)}.png";
var image = new OutputImage
{
Height = 0,
Width = 0,
InputFile = Path.Combine(TestConstants.ImageDirectory, inputFile),
OutputFile = Path.Combine(config.IntermediateOutputPath, outputFilename),
OutputLink = Path.Combine("Resources", "drawable-xxxhdpi", outputFilename),
RequiresBackgroundColor = false,
Scale = 1.0,
ShouldBeVisible = true,
Watermark = null,
BackgroundColor = "Red",
PaddingColor = "Yellow",
PaddingFactor = paddingFactor
};
var ex = Record.Exception(() => generator.ProcessImage(image));
Assert.Null(ex);
VerifyImageContents(image);
}
public void GeneratesImageWithCustomHeightWidth(string resourcePath, int expectedOutput)
{
var config = GetConfiguration();
config.IntermediateOutputPath += resourcePath;
var generator = new ImageResizeGenerator(config);
var image = new OutputImage
{
Height = expectedOutput,
Width = expectedOutput,
InputFile = Path.Combine(TestConstants.ImageDirectory, "dotnetbot.png"),
OutputFile = Path.Combine(config.IntermediateOutputPath, "dotnetbot.png"),
OutputLink = Path.Combine("Resources", "drawable-xxxhdpi", "dotnetbot.png"),
RequiresBackgroundColor = false,
Scale = 0,
ShouldBeVisible = true,
WatermarkFilePath = null
};
var ex = Record.Exception(() => generator.ProcessImage(image));
Assert.Null(ex);
Assert.True(File.Exists(image.OutputFile));
using var imageResource = Image.Load(image.OutputFile);
Assert.Equal(expectedOutput, imageResource.Width);
}
public void SetsCustomBackground()
{
var config = GetConfiguration();
var generator = new ImageResizeGenerator(config);
var image = new OutputImage
{
Height = 0,
Width = 0,
InputFile = Path.Combine(TestConstants.ImageDirectory, "dotnetbot.png"),
OutputFile = Path.Combine(config.IntermediateOutputPath, "dotnetbot.png"),
OutputLink = Path.Combine("Resources", "drawable-xxxhdpi", "dotnetbot.png"),
RequiresBackgroundColor = true,
Scale = 1,
ShouldBeVisible = true,
WatermarkFilePath = null,
BackgroundColor = "#8A2BE2"
};
generator.ProcessImage(image);
using var inputImage = Image.Load(image.InputFile);
using var outputImage = Image.Load(image.OutputFile);
using var inputClone = inputImage.CloneAs <Rgba32>();
using var outputClone = outputImage.CloneAs <Rgba32>();
var comparedTransparentPixel = false;
for (var y = 0; y < inputImage.Height; ++y)
{
var inputPixelRowSpan = inputClone.GetPixelRowSpan(y);
var outputPixelRowSpan = outputClone.GetPixelRowSpan(y);
for (var x = 0; x < inputImage.Width; ++x)
{
var startingPixel = inputPixelRowSpan[x];
if (startingPixel.A == 0)
{
comparedTransparentPixel = true;
var pixel = outputPixelRowSpan[x];
Assert.Equal(138, pixel.R);
Assert.Equal(43, pixel.G);
Assert.Equal(226, pixel.B);
Assert.Equal(255, pixel.A);
}
}
}
Assert.True(comparedTransparentPixel);
}
public void AppliesWatermark(string inputImageName, string watermarkImage)
{
var config = GetConfiguration();
var generator = new ImageResizeGenerator(config);
var image = new OutputImage
{
Height = 0,
Width = 0,
InputFile = Path.Combine(TestConstants.WatermarkImageDirectory, $"{inputImageName}.png"),
OutputFile = Path.Combine($"{config.IntermediateOutputPath}-{inputImageName}-{watermarkImage}", $"{inputImageName}.png"),
OutputLink = Path.Combine("Resources", "drawable-xxxhdpi", $"{inputImageName}.png"),
RequiresBackgroundColor = false,
Scale = 1,
ShouldBeVisible = true,
Watermark = new WatermarkConfiguration
{
SourceFile = Path.Combine(TestConstants.WatermarkImageDirectory, $"{watermarkImage}.png")
}
};
generator.ProcessImage(image);
using var inputImage = Image.Load(image.InputFile);
using var outputImage = Image.Load(image.OutputFile);
using var inputClone = inputImage.CloneAs <Rgba32>();
using var outputClone = outputImage.CloneAs <Rgba32>();
bool appliedWatermark;
for (var y = 0; y < inputImage.Height; ++y)
{
var inputPixelRowSpan = inputClone.GetPixelRowSpan(y);
var outputPixelRowSpan = outputClone.GetPixelRowSpan(y);
for (var x = 0; x < inputImage.Width; ++x)
{
appliedWatermark = inputPixelRowSpan[x] == outputPixelRowSpan[x];
if (appliedWatermark)
{
return;
}
}
}
_testOutputHelper.WriteLine("All pixels are the same in the Input and Output Images");
Assert.True(false);
}
internal override void ExecuteInternal(IBuildConfiguration config)
{
GeneratedImages = Array.Empty <ITaskItem>();
var images = Images.Select(x => x.ToOutputImage());
if (!images.Any())
{
return;
}
var generator = new ImageResizeGenerator(this)
{
OutputImages = images,
};
generator.Execute();
GeneratedImages = generator.Outputs.Select(x => x.ToTaskItem()).ToArray();
}
public void SetsDefaultBackground()
{
var config = GetConfiguration();
var generator = new ImageResizeGenerator(config);
var image = new OutputImage
{
Height = 0,
Width = 0,
InputFile = Path.Combine(TestConstants.ImageDirectory, "dotnetbot.png"),
OutputFile = Path.Combine(config.IntermediateOutputPath, "dotnetbot.png"),
OutputLink = Path.Combine("Resources", "drawable-xxxhdpi", "dotnetbot.png"),
RequiresBackgroundColor = true,
Scale = 1,
ShouldBeVisible = true,
Watermark = null
};
generator.ProcessImage(image);
VerifyImageContents(image);
}
public void AppliesTextBanner(string text)
{
var config = GetConfiguration();
var generator = new ImageResizeGenerator(config);
var image = new OutputImage
{
Height = 0,
Width = 0,
InputFile = Path.Combine(TestConstants.ImageDirectory, "dotnetbot.png"),
OutputFile = Path.Combine(config.IntermediateOutputPath, "dotnetbot.png"),
OutputLink = Path.Combine("Resources", "drawable-xxxhdpi", "dotnetbot.png"),
RequiresBackgroundColor = true,
Scale = .5,
ShouldBeVisible = true,
Watermark = new WatermarkConfiguration
{
Text = text
}
};
generator.ProcessImage(image);
}
