PNMImageReaderTest.java
/*
* Copyright (c) 2014, Harald Kuhr
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this software without specific prior written permission.
*
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package com.twelvemonkeys.imageio.plugins.pnm;
import com.twelvemonkeys.imageio.util.ImageReaderAbstractTest;
import javax.imageio.ImageReadParam;
import javax.imageio.ImageReader;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.spi.ImageReaderSpi;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;
import org.junit.jupiter.api.Test;
public class PNMImageReaderTest extends ImageReaderAbstractTest<PNMImageReader> {
@Override
protected ImageReaderSpi createProvider() {
return new PNMImageReaderSpi();
}
@Override
protected List<TestData> getTestData() {
return Arrays.asList(
new TestData(getClassLoaderResource("/ppm/snail2.pnm"), new Dimension(256, 256)), // P6 (PPM RAW)
new TestData(getClassLoaderResource("/ppm/colors.ppm"), new Dimension(3, 2)), // P3 (PPM PLAIN)
new TestData(getClassLoaderResource("/pbm/j.pbm"), new Dimension(6, 10)), // P1 (PBM PLAIN)
new TestData(getClassLoaderResource("/pbm/circle2.pnm"), new Dimension(200, 200)), // P4 (PBM RAW)
new TestData(getClassLoaderResource("/pgm/feep.pgm"), new Dimension(24, 7)), // P2 (PGM PLAIN)
new TestData(getClassLoaderResource("/pgm/rays2.pnm"), new Dimension(200, 200)), // P4 (PGM RAW)
new TestData(getClassLoaderResource("/pgm/feep16.pgm"), new Dimension(24, 7)), // P2 (PGM PLAIN, 16 bits/sample)
new TestData(getClassLoaderResource("/pgm/house.l.pgm"), new Dimension(367, 241)), // P5 (PGM RAW)
new TestData(getClassLoaderResource("/ppm/lighthouse_rgb48.ppm"), new Dimension(768, 512)), // P6 (PPM RAW, 16 bits/sample)
new TestData(getClassLoaderResource("/pfm/memorial.pfm"), new Dimension(512, 768)) // PF (32 bits/sample, floating point)
);
}
@Override
protected List<TestData> getTestDataForAffineTransformOpCompatibility() {
return Arrays.asList(
new TestData(getClassLoaderResource("/ppm/snail2.pnm"), new Dimension(256, 256)), // P6 (PPM RAW)
new TestData(getClassLoaderResource("/ppm/colors.ppm"), new Dimension(3, 2)), // P3 (PPM PLAIN)
new TestData(getClassLoaderResource("/pbm/j.pbm"), new Dimension(6, 10)), // P1 (PBM PLAIN)
new TestData(getClassLoaderResource("/pbm/circle2.pnm"), new Dimension(200, 200)), // P4 (PBM RAW)
new TestData(getClassLoaderResource("/pgm/feep.pgm"), new Dimension(24, 7)), // P2 (PGM PLAIN)
new TestData(getClassLoaderResource("/pgm/rays2.pnm"), new Dimension(200, 200)), // P4 (PGM RAW)
new TestData(getClassLoaderResource("/pgm/feep16.pgm"), new Dimension(24, 7)), // P2 (PGM PLAIN, 16 bits/sample)
new TestData(getClassLoaderResource("/pgm/house.l.pgm"), new Dimension(367, 241)), // P5 (PGM RAW)
new TestData(getClassLoaderResource("/ppm/lighthouse_rgb48.ppm"), new Dimension(768, 512)) // P6 (PPM RAW, 16 bits/sample)
// "/pfm/memorial.pfm" uses floating point
);
}
@Override
protected List<String> getFormatNames() {
return Arrays.asList(
"pnm", "pbm", "pgm", "ppm", "pfm",
"PNM", "PBM", "PGM", "PPM", "PFM"
);
}
@Override
protected List<String> getSuffixes() {
return Arrays.asList(
"pbm", "pgm", "ppm", "pfm"
);
}
@Override
protected List<String> getMIMETypes() {
return Arrays.asList(
"image/x-portable-pixmap",
"image/x-portable-anymap"
);
}
@Test
public void testColorsVsReference() throws IOException {
ImageReader reader = createReader();
TestData data = new TestData(getClassLoaderResource("/ppm/colors.ppm"), new Dimension(3, 2));
reader.setInput(data.getInputStream());
BufferedImage expected = new BufferedImage(3, 2, BufferedImage.TYPE_3BYTE_BGR);
expected.setRGB(0, 0, new Color(255, 0, 0).getRGB());
expected.setRGB(1, 0, new Color(0, 255, 0).getRGB());
expected.setRGB(2, 0, new Color(0, 0, 255).getRGB());
expected.setRGB(0, 1, new Color(255, 255, 0).getRGB());
expected.setRGB(1, 1, new Color(255, 255, 255).getRGB());
expected.setRGB(2, 1, new Color(0, 0, 0).getRGB());
assertImageDataEquals("Images differ from reference", expected, reader.read(0));
}
@Test
public void testTypes() throws IOException {
ImageReader reader = createReader();
TestData data = new TestData(getClassLoaderResource("/ppm/colors.ppm"), new Dimension(3, 2));
reader.setInput(data.getInputStream());
int[] types = new int[] {BufferedImage.TYPE_INT_RGB, BufferedImage.TYPE_INT_BGR, BufferedImage.TYPE_3BYTE_BGR};
for (int type : types) {
BufferedImage expected = new BufferedImage(3, 2, type);
expected.setRGB(0, 0, new Color(255, 0, 0).getRGB());
expected.setRGB(1, 0, new Color(0, 255, 0).getRGB());
expected.setRGB(2, 0, new Color(0, 0, 255).getRGB());
expected.setRGB(0, 1, new Color(255, 255, 0).getRGB());
expected.setRGB(1, 1, new Color(255, 255, 255).getRGB());
expected.setRGB(2, 1, new Color(0, 0, 0).getRGB());
ImageReadParam param = reader.getDefaultReadParam();
param.setDestinationType(ImageTypeSpecifier.createFromBufferedImageType(type));
assertImageDataEquals("Images differ from reference for type: " + type, expected, reader.read(0, param));
}
}
}