<?php

/**
 * @file
 * Unit tests for Link module's internal APIs.
 */

/**
 * Unit tests for Link module's internal APIs.
 */
class LinkUnitTestCase extends DrupalUnitTestCase {

  /**
   *
   */
  public static function getInfo() {
    return array(
      'name' => 'Link Unit Tets',
      'description' => 'Unit tests for the Link module.',
      'group' => 'Link',
    );
  }

  /**
   * {@inheritdoc}
   */
  public function setUp() {
    drupal_load('module', 'link');
    parent::setUp();
  }

  /**
   * Test _link_parse_url().
   */
  public function testLinkParseUrl() {
    // Each of the keys is the URL to check, it will then be converted into a
    // matching array with three possible elements - 'url', 'query' and
    // 'fragment'.
    $urls = array(
      'https://www.drupal.org' => array(
        'url' => 'https://www.drupal.org',
      ),
      'https://www.drupal.org/?page=42' => array(
        'url' => 'https://www.drupal.org/',
        'query' => array(
          'page' => 42,
        ),
      ),
      'https://www.drupal.org/?page=42&mango=thebest' => array(
        'url' => 'https://www.drupal.org/',
        'query' => array(
          'page' => 42,
          'mango' => 'thebest',
        ),
      ),
      'https://www.drupal.org/#footer' => array(
        'url' => 'https://www.drupal.org/',
        'fragment' => 'footer',
      ),
      'https://www.drupal.org/?page=42#footer' => array(
        'url' => 'https://www.drupal.org/',
        'query' => array(
          'page' => 42,
        ),
        'fragment' => 'footer',
      ),
    );
    foreach ($urls as $url => $expected_parts) {
      $actual_parts = _link_parse_url($url);

      // First off, compare the URL segment.
      $this->assertEqual($expected_parts['url'], $actual_parts['url']);

      // Secondly, compare the query string, if it was expected.
      if (isset($expected_parts['query'])) {
        $this->assertTrue(isset($actual_parts['query']));
        $this->assertTrue(is_array($actual_parts['query']));
        $this->assertEqual(count($expected_parts['query']), count($actual_parts['query']));
        foreach ($expected_parts['query'] as $key => $val) {
          $this->assertTrue(isset($actual_parts['query'][$key]));
          $this->assertEqual($val, $actual_parts['query'][$key]);
        }
      }
      // If it was not expected, make sure it wasn't added anyway.
      else {
        $this->assertFalse(isset($actual_parts['query']));
      }

      // Lastly, compare the query fragment, if it was expected.
      if (isset($expected_parts['fragment'])) {
        $this->assertEqual($expected_parts['fragment'], $actual_parts['fragment']);
      }
      // If it was not expected, make sure it wasn't added anyway.
      else {
        $this->assertFalse(isset($actual_parts['fragment']));
      }
    }
  }

}