public void Test_RemoveAlpha()
{
string tempFile = GetTemporaryFileName(".png");
try
{
using (MagickImage image = new MagickImage(Files.MagickNETIconPNG))
{
Assert.IsTrue(image.HasAlpha);
image.ColorAlpha(new MagickColor("yellow"));
image.HasAlpha = true;
image.Write(tempFile);
image.Read(tempFile);
Assert.IsTrue(image.HasAlpha);
PngOptimizer optimizer = new PngOptimizer();
optimizer.LosslessCompress(tempFile);
image.Read(tempFile);
Assert.IsFalse(image.HasAlpha);
}
}
finally
{
FileHelper.Delete(tempFile);
}
}
public void Test_RemoveAlpha()
{
string tempFile = Path.GetTempPath() + Guid.NewGuid().ToString() + ".png";
try
{
using (MagickImage image = new MagickImage(Files.MagickNETIconPNG))
{
Assert.IsTrue(image.HasAlpha);
image.ColorAlpha(new MagickColor("yellow"));
image.HasAlpha = true;
image.Write(tempFile);
image.Read(tempFile);
// TODO: Figure out why this does not fail in a single run but does when all tests are run.
//Assert.IsTrue(image.HasAlpha);
PngOptimizer optimizer = new PngOptimizer();
optimizer.LosslessCompress(tempFile);
image.Read(tempFile);
Assert.IsFalse(image.HasAlpha);
}
}
finally
{
if (File.Exists(tempFile))
{
File.Delete(tempFile);
}
}
}
public void ShouldNotOptimizeAnimatedPNG()
{
PngOptimizer optimizer = new PngOptimizer();
using (TemporaryFile tempFile = new TemporaryFile(Files.Coders.AnimatedPNGexampleBouncingBeachBallPNG))
{
var result = optimizer.LosslessCompress(tempFile);
Assert.False(result);
}
}
