Prado\Security\TAuthManager::getUserManager PHP Method

    public function getUserManager()
    {
        return $this->_userManager;
    }

 public function testUserManager()
 {
     $authManager = new TAuthManager();
     $authManager->setUserManager('users');
     $authManager->init(null);
     self::assertEquals(self::$usrMgr, $authManager->getUserManager());
     // test change
     try {
         $authManager->setUserManager('invalid');
         self::fail('Expected TInvalidOperationException not thrown');
     } catch (TInvalidOperationException $e) {
     }
 }