<?php

/**
 * @file
 * Tests for the common syndication parser.
 */

/**
 * Test cases for common syndication parser library.
 *
 * @todo Break out into Drupal independent test framework.
 * @todo Could I use DrupalUnitTestCase here?
 */
class CommonSyndicationParserTestCase extends DrupalWebTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Common Syndication Parser',
      'description' => 'Unit tests for Common Syndication Parser.',
      'group' => 'Feeds',
    );
  }

  public function setUp() {
    parent::setUp(array('feeds', 'feeds_ui', 'ctools', 'job_scheduler'));
    feeds_include_library('common_syndication_parser.inc', 'common_syndication_parser');
  }

  /**
   * Dispatch tests, only use one entry point method testX to save time.
   */
  public function test() {
    $this->_testRSS10();
    $this->_testRSS2();
    $this->_testAtomGeoRSS();
    $this->_testAtomGeoRSSWithoutAuthor();
    $this->_testAtomEntriesWithoutBaseUrl();
  }

  /**
   * Test RSS 1.0.
   */
  protected function _testRSS10() {
    $string = $this->readFeed('magento.rss1');
    $feed = common_syndication_parser_parse($string);
    $this->assertEqual($feed['title'], 'Magento Sites Network - A directory listing of Magento Commerce stores');
    $this->assertEqual($feed['items'][0]['title'], 'Gezondheidswebwinkel');
    $this->assertEqual($feed['items'][0]['url'], 'http://www.magentosites.net/store/2010/04/28/gezondheidswebwinkel/index.html');
    $this->assertEqual($feed['items'][1]['url'], 'http://www.magentosites.net/store/2010/04/26/mybobinocom/index.html');
    $this->assertEqual($feed['items'][1]['guid'], 'http://www.magentosites.net/node/3472');
    $this->assertEqual($feed['items'][2]['guid'], 'http://www.magentosites.net/node/3471');
    $this->assertEqual($feed['items'][2]['timestamp'], 1272285294);
  }

  /**
   * Test RSS 2.
   */
  protected function _testRSS2() {
    $string = $this->readFeed('developmentseed.rss2');
    $feed = common_syndication_parser_parse($string);
    $this->assertEqual($feed['title'], 'Development Seed - Technological Solutions for Progressive Organizations');
    $this->assertEqual($feed['items'][0]['title'], 'Open Atrium Translation Workflow: Two Way Translation Updates');
    $this->assertEqual($feed['items'][1]['url'], 'http://developmentseed.org/blog/2009/oct/05/week-dc-tech-october-5th-edition');
    $this->assertEqual($feed['items'][1]['guid'], '973 at http://developmentseed.org');
    $this->assertEqual($feed['items'][2]['guid'], '972 at http://developmentseed.org');
    $this->assertEqual($feed['items'][2]['timestamp'], 1254493864);
  }

  /**
   * Test Geo RSS in Atom feed.
   */
  protected function _testAtomGeoRSS() {
    $string = $this->readFeed('earthquake-georss.atom');
    $feed = common_syndication_parser_parse($string);
    $this->assertEqual($feed['title'], 'USGS M2.5+ Earthquakes');
    $this->assertEqual($feed['items'][0]['title'], 'M 2.6, Central Alaska');
    $this->assertEqual($feed['items'][1]['url'], 'http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/us2010axbz.php');
    $this->assertEqual($feed['items'][1]['guid'], 'urn:earthquake-usgs-gov:us:2010axbz');
    $this->assertEqual($feed['items'][2]['guid'], 'urn:earthquake-usgs-gov:us:2010axbr');
    $this->assertEqual($feed['items'][2]['geolocations'][0]['name'], '-53.1979 -118.0676');
    $this->assertEqual($feed['items'][2]['geolocations'][0]['lat'], '-53.1979');
    $this->assertEqual($feed['items'][2]['geolocations'][0]['lon'], '-118.0676');
    $this->assertEqual($feed['items'][3]['geolocations'][0]['name'], '-43.4371 172.5902');
    $this->assertEqual($feed['items'][3]['geolocations'][0]['lat'], '-43.4371');
    $this->assertEqual($feed['items'][3]['geolocations'][0]['lon'], '172.5902');
  }

  /**
   * Tests parsing an Atom feed without an author.
   */
  protected function _testAtomGeoRSSWithoutAuthor() {
    $string = $this->readFeed('earthquake-georss-noauthor.atom');
    $feed = common_syndication_parser_parse($string);
  }

  /**
   * Tests if the base url is prepended for entries without base url.
   *
   * For example, the url in the following entry should be parsed as
   * 'http://www.example.com/node/123' and not as 'node/123'.
   * @code
   * <entry>
   *   <link href="node/123"/>
   * </entry>
   * @endcode
   */
  protected function _testAtomEntriesWithoutBaseUrl() {
    $string = $this->readFeed('entries-without-base-url.atom');
    $feed = common_syndication_parser_parse($string);

    // Assert that all items got the base url assigned.
    $expected = array(
      'http://www.example.com/node/1281496#comment-11669575',
      'http://www.example.com/node/1281496#comment-10080648',
      'http://www.example.com/node/1281496#comment-10062564',
    );
    foreach ($feed['items'] as $key => $item) {
      $this->assertEqual($expected[$key], $item['url']);
    }
  }

  /**
   * Helper to read a feed.
   */
  protected function readFeed($filename) {
    $feed = dirname(__FILE__) . '/feeds/' . $filename;
    $handle = fopen($feed, 'r');
    $string = fread($handle, filesize($feed));
    fclose($handle);
    return $string;
  }
}