/**
* @param $url
*
* @return string
*/
private function get_expected_image_output($url)
{
// get expected output
self::$class_instance->image_output($url);
$expected = ob_get_contents();
ob_clean();
// reset shown_images array
self::$class_instance->shown_images = array();
return $expected;
}
public function image_output($img, $tag = 'image:src')
{
return parent::image_output($img, $tag);
}
