/**
  * Sets the parent service locator.
  *
  * @param ServiceLocatorInterface $serviceLocator
  * @param int                     $count expected call count for getServiceLocator
  *
  * @return AbstractPluginManager
  */
 public function setServiceLocator(ServiceLocatorInterface $serviceLocator, $count = 1)
 {
     $this->setExpectedCallCount('getServiceLocator', $count);
     return parent::setServiceLocator($serviceLocator);
 }