<?php

/**
 * @file
 * Follow module tests.
 */

class FollowTestCase extends DrupalWebTestCase {
  /**
   * Display information about this test case.
   */
  public static function getInfo() {
    return array(
      'name' => 'Follow module',
      'description' => 'Test the Follow module',
      'group' => 'Follow',
    );
  }

  /**
   * Set up the modules and any other
   */
  public function setUp() {
    // List the modules that should be enabled for this test.
    parent::setUp('follow_test');

    // Create an admin user.
    $this->adminUser = $this->drupalCreateUser(
      array('administer blocks')
    );
  }

  /**
   * Create one test function here to run all tests from, for speed.
   */
  function testFollow() {
    $this->_testInstall();
    $this->_testIcons();
    $this->_testConfigureForm();
    $this->_testCssCallback();
  }

  public function _testInstall() {
    $this->assertTrue(file_exists(_follow_css_get_path()), t('The CSS file was generated on install.'));
  }

  public function _testIcons() {
    $default_style = follow_get_icon_style('small');
    // Determine the default icons.
    $default_icons = $this->_globStyleIconDir($default_style);

    $styles = follow_icon_styles();
    foreach ($styles as $style) {
      if ($style['name'] == $default_style['name']) {
        continue;
      }
      $icons = $this->_globStyleIconDir($style);
      $this->verbose(print_r(array_diff($default_icons, $default_icons), 1));
      $t_args['@label'] = $style['label'];
      $this->assertEqual(
        $default_icons,
        $icons,
        t('The @label icon style contains all necessary icons.', $t_args));
    }
  }

  public function _testConfigureForm() {
    $url = 'admin/structure/block/manage/follow/site/configure';
    $css_path = _follow_css_get_path();
    $original_time = filemtime($css_path);
    $this->drupalLogin($this->adminUser);
    $this->drupalPost($url, array(), t('Save block'));
    $new_time = filemtime($css_path);

    $this->assertNotEqual(
      $original_time,
      $new_time,
      t('The CSS file is regenerated upon saving the block configure form.'));
  }

  public function _testCssCallback() {
    // First, delete the CSS path.
    file_unmanaged_delete('public://css/follow.css');
    // Then do a GET on the path to see if the file is actually a CSS file.
    $this->drupalGet(_follow_css_get_path());
    $this->assertRaw(' * This CSS file is generated by Follow module. DO NOT edit it directly.',
      t('The Follow CSS menu callback displays the generated CSS.'));
  }

  protected function _globStyleIconDir(array $style) {
    $path = trim(_follow_style_icon_path($style), '/');
    $directory = DRUPAL_ROOT . "/{$path}";
    $pattern = "{$directory}/*.png";
    foreach (glob($pattern) as $filename) {
      $files[] = str_replace($directory, '', $filename);
    }
    sort($files);
    return $files;
  }
}