DjVuTest.php

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<?php
class DjVuTest extends MediaWikiTestCase {

    protected $filePath;

    protected $repo;

    protected $handler;

    protected function setUp() {
        global $wgDjvuRenderer, $wgDjvuDump, $wgDjvuToXML;
        parent::setUp();

        //cli tool setup
        $wgDjvuRenderer = $wgDjvuRenderer ? $wgDjvuRenderer : '/usr/bin/ddjvu';
        $wgDjvuDump = $wgDjvuDump ? $wgDjvuDump : '/usr/bin/djvudump';
        $wgDjvuToXML = $wgDjvuToXML ? $wgDjvuToXML : '/usr/bin/djvutoxml';
        if (
            !$this->checkIfToolExists( $wgDjvuRenderer ) ||
            !$this->checkIfToolExists( $wgDjvuDump ) ||
            !$this->checkIfToolExists( $wgDjvuToXML )
        ) {
            $this->markTestSkipped( 'This test needs the installation of the ddjvu, djvutoxml and djvudump tools' );
        }

        //file repo setup
        $this->filePath = __DIR__ . '/../../data/media/';
        $backend = new FSFileBackend( array(
            'name' => 'localtesting',
            'wikiId' => wfWikiId(),
            'lockManager' => new NullLockManager( array() ),
            'containerPaths' => array( 'data' => $this->filePath )
        ) );
        $this->repo = new FSRepo( array(
            'name' => 'temp',
            'url' => 'http://localhost/thumbtest',
            'backend' => $backend
        ) );

        $this->handler = new DjVuHandler();
    }

    protected function checkIfToolExists( $path ) {
        wfSuppressWarnings();
        $result = file_exists( $path );
        wfRestoreWarnings();
        return $result;
    }

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

    public function testGetImageSize() {
        $this->assertArrayEquals(
            array( 2480, 3508, 'DjVu', 'width="2480" height="3508"' ),
            $this->handler->getImageSize( null, $this->filePath . '/LoremIpsum.djvu' ),
            'Test file LoremIpsum.djvu should have a size of 2480 * 3508'
        );
    }

    public function testInvalidFile() {
        $this->assertFalse(
            $this->handler->getMetadata( null, $this->filePath . '/README' ),
            'Getting Metadata for an inexistent file should returns false'
        );
    }

    public function testPageCount() {
        $file = $this->dataFile( 'LoremIpsum.djvu', 'image/x.djvu' );
        $this->assertEquals(
            5,
            $this->handler->pageCount( $file ),
            'Test file LoremIpsum.djvu should be detected as containing 5 pages'
        );
    }

    public function testGetPageDimensions() {
        $file = $this->dataFile( 'LoremIpsum.djvu', 'image/x.djvu' );
        $this->assertArrayEquals(
            array( 2480, 3508 ),
            $this->handler->getPageDimensions( $file, 1 ),
            'Page 1 of test file LoremIpsum.djvu should have a size of 2480 * 3508'
        );
    }

    public function testGetPageText() {
        $file = $this->dataFile( 'LoremIpsum.djvu', 'image/x.djvu' );
        $this->assertEquals(
            "Lorem ipsum \n1 \n",
            (string) $this->handler->getPageText( $file, 1 ),
            "Text layer of page 1 of file LoremIpsum.djvu should be 'Lorem ipsum \n1 \n'"
        );
    }
}