/**
  * @covers WPSEO_Twitter::site_twitter
  */
 public function test_site_twitter()
 {
     // test valid option
     self::$class_instance->options['twitter_site'] = 'yoast';
     $expected = $this->metatag('site', '@yoast');
     self::$class_instance->site_twitter();
     $this->expectOutput($expected);
 }
 public function site_twitter()
 {
     return parent::site_twitter();
 }