/**
* @covers WPSEO_Twitter::twitter_description
*/
public function test_twitter_description()
{
// create and go to post
$post_id = $this->factory->post->create();
$this->go_to(get_permalink($post_id));
// test excerpt
$expected = $this->metatag('description', get_the_excerpt());
self::$class_instance->twitter_description();
$this->expectOutput($expected);
// test wpseo meta
WPSEO_Meta::set_value('metadesc', 'Meta description', $post_id);
$expected = $this->metatag('description', self::$class_instance->metadesc(false));
self::$class_instance->twitter_description();
$this->expectOutput($expected);
}