<?php

/**
 * @file
 * Contains LibrariesUnitTest.
 *
 * Simpletest automatically discovers test files using PSR-4. We cannot,
 * however, declare a namespace for this class, as that would require PHP 5.3.
 * To prepare the PHP 5.3 requirement and the usage of PSR-4 in 7.x-3.x, we
 * place the test files in the correct directory already, but for now register
 * them explicitly in libraries.info.
 */

/**
 * Tests basic Libraries API functions.
 */
class LibrariesUnitTest extends DrupalUnitTestCase {

  /**
   * Provides metadata about this test.
   *
   * @return array
   *   An array of test metadata with the following keys:
   *   - name: The name of the test.
   *   - description: The description of the test.
   *   - group: The group of the test.
   */
  public static function getInfo() {
    return array(
      'name' => 'Libraries API unit tests',
      'description' => 'Tests basic functions provided by Libraries API.',
      'group' => 'Libraries API',
    );
  }

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

  /**
   * Tests libraries_get_path().
   */
  public function testLibrariesGetPath() {
    // Note that, even though libraries_get_path() doesn't find the 'example'
    // library, we are able to make it 'installed' by specifying the 'library
    // path' up-front. This is only used for testing purposed and is strongly
    // discouraged as it defeats the purpose of Libraries API in the first
    // place.
    $this->assertEqual(libraries_get_path('example'), FALSE, 'libraries_get_path() returns FALSE for a missing library.');
  }

  /**
   * Tests libraries_prepare_files().
   */
  public function testLibrariesPrepareFiles() {
    $expected = array(
      'files' => array(
        'js' => array('example.js' => array()),
        'css' => array('example.css' => array()),
        'php' => array('example.php' => array()),
      ),
    );
    $library = array(
      'files' => array(
        'js' => array('example.js'),
        'css' => array('example.css'),
        'php' => array('example.php'),
      ),
    );
    libraries_prepare_files($library, NULL, NULL);
    $this->assertEqual($expected, $library, 'libraries_prepare_files() works correctly.');
  }

}