public function testGetDesignAttributes()
 {
     $attributes = $this->_model->getDesignAttributes();
     $this->assertContains('custom_design_from', array_keys($attributes));
     $this->assertContains('custom_design_to', array_keys($attributes));
 }
 /**
  * {@inheritdoc}
  */
 public function getDesignAttributes()
 {
     $pluginInfo = $this->pluginList->getNext($this->subjectType, 'getDesignAttributes');
     if (!$pluginInfo) {
         return parent::getDesignAttributes();
     } else {
         return $this->___callPlugins('getDesignAttributes', func_get_args(), $pluginInfo);
     }
 }