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James Richie
2026-08-30 22:02:02 +00:00
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vendor/tecnickcom/tc-lib-pdf-image/test/JpegTest.php
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<?php
/**
* JpegTest.php
*
* @since 2026-04-19
* @category Library
* @package PdfImage
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-image
*
* This file is part of tc-lib-pdf-image software library.
*/
namespace Test;
/**
* Jpeg class test
*
* @since 2026-04-19
* @category Library
* @package PdfImage
* @author Nicola Asuni <info@tecnick.com>
* @copyright 2011-2026 Nicola Asuni - Tecnick.com LTD
* @license https://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE)
* @link https://github.com/tecnickcom/tc-lib-pdf-image
*
* @phpstan-import-type ImageBaseData from \Com\Tecnick\Pdf\Image\Import
*/
class JpegTest extends TestUtil
{
/**
* @throws \RangeException
*/
public function testGetDataRgbJpeg(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$file = \file_get_contents(__DIR__ . '/images/200x100_RGB.jpg');
$this->assertIsString($file);
$data = [
'bits' => 8,
'channels' => 3,
'colspace' => 'DeviceRGB',
'data' => '',
'exturl' => false,
'file' => __DIR__ . '/images/200x100_RGB.jpg',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $file,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
$result = $import->getData($data);
$this->assertEquals('DCTDecode', $result['filter']);
$this->assertNotEmpty($result['data']);
$this->assertEquals($file, $result['data']);
}
/**
* @throws \RangeException
*/
public function testGetDataGrayJpeg(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$file = \file_get_contents(__DIR__ . '/images/200x100_GRAY.jpg');
$this->assertIsString($file);
$data = [
'bits' => 8,
'channels' => 1,
'colspace' => 'DeviceGray',
'data' => '',
'exturl' => false,
'file' => __DIR__ . '/images/200x100_GRAY.jpg',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $file,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
$result = $import->getData($data);
$this->assertEquals('DCTDecode', $result['filter']);
$this->assertEquals(1, $result['channels']);
}
/**
* @throws \RangeException
*/
public function testGetDataCmykJpeg(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$file = \file_get_contents(__DIR__ . '/images/200x100_CMYK.jpg');
$this->assertIsString($file);
$data = [
'bits' => 8,
'channels' => 4,
'colspace' => 'DeviceCMYK',
'data' => '',
'exturl' => false,
'file' => __DIR__ . '/images/200x100_CMYK.jpg',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $file,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
$result = $import->getData($data);
$this->assertEquals('DCTDecode', $result['filter']);
$this->assertEquals(4, $result['channels']);
$this->assertEquals('DeviceCMYK', $result['colspace']);
}
/**
* @throws \RangeException
*/
public function testGetDataJpegWithIcc(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$file = \file_get_contents(__DIR__ . '/images/200x100_RGBICC.jpg');
$this->assertIsString($file);
$data = [
'bits' => 8,
'channels' => 3,
'colspace' => 'DeviceRGB',
'data' => '',
'exturl' => false,
'file' => __DIR__ . '/images/200x100_RGBICC.jpg',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $file,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
$result = $import->getData($data);
$this->assertEquals('DCTDecode', $result['filter']);
$this->assertNotEmpty($result['icc']);
}
/**
* @throws \RangeException
*/
public function testGetDataJpegWithoutIcc(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$file = \file_get_contents(__DIR__ . '/images/200x100_RGB.jpg');
$this->assertIsString($file);
$data = [
'bits' => 8,
'channels' => 3,
'colspace' => 'DeviceRGB',
'data' => '',
'exturl' => false,
'file' => __DIR__ . '/images/200x100_RGB.jpg',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $file,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
$result = $import->getData($data);
$this->assertEquals('DCTDecode', $result['filter']);
$this->assertEmpty($result['icc']);
}
/**
* @throws \RangeException
*/
public function testGetDataPreservesRawData(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$file = \file_get_contents(__DIR__ . '/images/200x100_RGB.jpg');
$this->assertIsString($file);
$data = [
'bits' => 8,
'channels' => 3,
'colspace' => 'DeviceRGB',
'data' => '',
'exturl' => false,
'file' => __DIR__ . '/images/200x100_RGB.jpg',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $file,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
$result = $import->getData($data);
$this->assertEquals($file, $result['raw']);
$this->assertEquals($file, $result['data']);
}
/**
* @throws \RangeException
*/
public function testGetDataWithMissingIcc(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$file = \file_get_contents(__DIR__ . '/images/200x100_RGB.jpg');
$this->assertIsString($file);
$data = [
'bits' => 8,
'channels' => 3,
'colspace' => 'DeviceRGB',
'data' => '',
'exturl' => false,
'file' => __DIR__ . '/images/200x100_RGB.jpg',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $file,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
$result = $import->getData($data);
$this->assertEquals('DCTDecode', $result['filter']);
$this->assertEquals('DeviceRGB', $result['colspace']);
}
/**
* @throws \RangeException
*/
public function testGetDataPreservesChannels(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$file = \file_get_contents(__DIR__ . '/images/200x100_GRAY.jpg');
$this->assertIsString($file);
$data = [
'bits' => 8,
'channels' => 1,
'colspace' => 'DeviceGray',
'data' => '',
'exturl' => false,
'file' => __DIR__ . '/images/200x100_GRAY.jpg',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $file,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
$result = $import->getData($data);
$this->assertEquals(1, $result['channels']);
$this->assertEquals($file, $result['data']);
}
/**
* A crafted "ICC_PROFILE" marker preceded by a 2-byte length of 0 yields a
* negative segment length. The scanner must still move forward instead of
* re-finding the same marker forever (DoS regression).
*
* @throws \RangeException
*/
public function testGetDataDoesNotHangOnMalformedIccMarker(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$raw = 'XX' . "\x00\x00" . 'ICC_PROFILE' . "\x00\x01\x01" . 'PAYLOAD';
$data = $this->makeJpegData($raw);
$result = $import->getData($data);
$this->assertSame('DCTDecode', $result['filter']);
$this->assertSame('', $result['icc']);
$this->assertSame($raw, $result['data']);
}
/**
* A marker at the very start of the stream has too few bytes before it to
* carry a length: it must be skipped without throwing or looping.
*
* @throws \RangeException
*/
public function testGetDataIgnoresIccMarkerWithoutLengthPrefix(): void
{
$import = new \Com\Tecnick\Pdf\Image\Import\Jpeg();
$raw = 'ICC_PROFILE' . "\x00" . 'rest';
$data = $this->makeJpegData($raw);
$result = $import->getData($data);
$this->assertSame('', $result['icc']);
}
/**
* Build a minimal JPEG base-data array wrapping the given raw bytes.
*
* @return ImageBaseData
*/
private function makeJpegData(string $raw): array
{
return [
'bits' => 8,
'channels' => 3,
'colspace' => 'DeviceRGB',
'data' => '',
'exturl' => false,
'file' => '',
'filter' => '',
'height' => 100,
'icc' => '',
'ismask' => false,
'key' => 'test',
'mapto' => IMAGETYPE_JPEG,
'native' => true,
'obj' => 0,
'obj_alt' => 0,
'obj_icc' => 0,
'obj_pal' => 0,
'pal' => '',
'parms' => '',
'raw' => $raw,
'recode' => false,
'recoded' => false,
'splitalpha' => false,
'trns' => [],
'type' => IMAGETYPE_JPEG,
'width' => 200,
];
}
}