Merge "tests: beginning of tests for DjVu files"

tests/phpunit/includes/media/DjVuTest.php

@@ -0,0 +1,118 @@
+<?php
+/**
+ * @covers DjVuHandler
+ */
+class DjVuTest extends MediaWikiTestCase {
+
+	/**
+	 * @var string the directory where test files are
+	 */
+	protected $filePath;
+
+	/**
+	 * @var FSRepo the repository to use
+	 */
+	protected $repo;
+
+	/**
+	 * @var DjVuHandler
+	 */
+	protected $handler;
+
+	protected function setUp() {
+		global $wgDjvuRenderer, $wgDjvuDump, $wgDjvuToXML;
+		parent::setUp();
+
+		//cli tool setup
+		$wgDjvuRenderer = $wgDjvuRenderer ? $wgDjvuRenderer : '/usr/local/bin/ddjvu';
+		$wgDjvuDump = $wgDjvuDump ? $wgDjvuDump : '/usr/local/bin/djvudump';
+		$wgDjvuToXML = $wgDjvuToXML ? $wgDjvuToXML : '/usr/local/bin/djvutoxml';
+		if (
+			!$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();
+	}
+
+	/**
+	 * Check if a tool exist
+	 *
+	 * @param string $path path to the tool
+	 * @return bool
+	 */
+	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'"
+		);
+	}
+}