<?php
class JpegTest extends MediaWikiTestCase {

	protected function setUp() {
		parent::setUp();
		if ( !extension_loaded( 'exif' ) ) {
			$this->markTestSkipped( "This test needs the exif extension." );
		}

		$this->filePath = __DIR__ . '/../../data/media/';


		$this->setMwGlobals( 'wgShowEXIF', true );

		$this->backend = new FSFileBackend( array(
			'name' => 'localtesting',
			'lockManager' => 'nullLockManager',
			'containerPaths' => array( 'data' => $this->filePath )
		) );
		$this->repo = new FSRepo( array(
			'name' => 'temp',
			'url' => 'http://localhost/thumbtest',
			'backend' => $this->backend
		) );

		$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' );
		$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 = array(
			'ImageDescription' => 'Test file',
			'XResolution' => '72/1',
			'YResolution' => '72/1',
			'ResolutionUnit' => 2,
			'YCbCrPositioning' => 1,
			'JPEGFileComment' => array(
				'Created with GIMP',
			),
		);

		$this->assertEquals( $res, $expected );
	}

	private function dataFile( $name, $type ) {
		return new UnregisteredLocalFile( false, $this->repo,
			"mwstore://localtesting/data/$name", $type );
	}
}