public function testGetChildrenCategoriesEmpty()
 {
     $this->_model->load(5);
     $children = $this->_model->getChildrenCategories();
     $this->assertEquals(0, count($children));
 }
 /**
  * {@inheritdoc}
  */
 public function getChildrenCategories()
 {
     $pluginInfo = $this->pluginList->getNext($this->subjectType, 'getChildrenCategories');
     if (!$pluginInfo) {
         return parent::getChildrenCategories();
     } else {
         return $this->___callPlugins('getChildrenCategories', func_get_args(), $pluginInfo);
     }
 }