JpegTest.php

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<?php
 
class JpegTest extends MediaWikiMediaTestCase {
 
    protected function setUp() {
        parent::setUp();
        $this->checkPHPExtension( 'exif' );
 
        $this->setMwGlobals( 'wgShowEXIF', true );
 
        $this->handler = new JpegHandler;
    }
 
    public function testInvalidFile() {
        $file = $this->dataFile( 'README', 'image/jpeg' );
        $res = $this->handler->getMetadata( $file, $this->filePath . 'README' );
        $this->assertEquals( ExifBitmapHandler::BROKEN_FILE, $res );
    }
 
    public function testJpegMetadataExtraction() {
        $file = $this->dataFile( 'test.jpg', 'image/jpeg' );
        $res = $this->handler->getMetadata( $file, $this->filePath . 'test.jpg' );
        // phpcs:ignore Generic.Files.LineLength
        $expected = 'a:7:{s:16:"ImageDescription";s:9:"Test file";s:11:"XResolution";s:4:"72/1";s:11:"YResolution";s:4:"72/1";s:14:"ResolutionUnit";i:2;s:16:"YCbCrPositioning";i:1;s:15:"JPEGFileComment";a:1:{i:0;s:17:"Created with GIMP";}s:22:"MEDIAWIKI_EXIF_VERSION";i:2;}';
 
        // Unserialize in case serialization format ever changes.
        $this->assertEquals( unserialize( $expected ), unserialize( $res ) );
    }
 
    public function testGetIndependentMetaArray() {
        $file = $this->dataFile( 'test.jpg', 'image/jpeg' );
        $res = $this->handler->getCommonMetaArray( $file );
        $expected = [
            'ImageDescription' => 'Test file',
            'XResolution' => '72/1',
            'YResolution' => '72/1',
            'ResolutionUnit' => 2,
            'YCbCrPositioning' => 1,
            'JPEGFileComment' => [
                'Created with GIMP',
            ],
        ];
 
        $this->assertEquals( $res, $expected );
    }
 
    public function testSwappingICCProfile(
        $sourceFilename, $controlFilename, $newProfileFilename, $oldProfileName
    ) {
        global $wgExiftool;
 
        if ( !$wgExiftool || !is_file( $wgExiftool ) ) {
            $this->markTestSkipped( "Exiftool not installed, cannot test ICC profile swapping" );
        }
 
        $this->setMwGlobals( 'wgUseTinyRGBForJPGThumbnails', true );
 
        $sourceFilepath = $this->filePath . $sourceFilename;
        $controlFilepath = $this->filePath . $controlFilename;
        $profileFilepath = $this->filePath . $newProfileFilename;
        $filepath = $this->getNewTempFile();
 
        copy( $sourceFilepath, $filepath );
 
        $file = $this->dataFile( $sourceFilename, 'image/jpeg' );
        $this->handler->swapICCProfile(
            $filepath,
            [ 'sRGB', '-' ],
            [ $oldProfileName ],
            $profileFilepath
        );
 
        $this->assertEquals(
            sha1( file_get_contents( $filepath ) ),
            sha1( file_get_contents( $controlFilepath ) )
        );
    }
 
    public function provideSwappingICCProfile() {
        return [
            // File with sRGB should end up with TinyRGB
            [
                'srgb.jpg',
                'tinyrgb.jpg',
                'tinyrgb.icc',
                'sRGB IEC61966-2.1'
            ],
            // File with TinyRGB should be left unchanged
            [
                'tinyrgb.jpg',
                'tinyrgb.jpg',
                'tinyrgb.icc',
                'sRGB IEC61966-2.1'
            ],
            // File without profile should end up with TinyRGB
            [
                'missingprofile.jpg',
                'tinyrgb.jpg',
                'tinyrgb.icc',
                'sRGB IEC61966-2.1'
            ],
            // Non-sRGB file should be left untouched
            [
                'adobergb.jpg',
                'adobergb.jpg',
                'tinyrgb.icc',
                'sRGB IEC61966-2.1'
            ]
        ];
    }
}