Jetpack_Protect_Module::instance PHP 메소드

    public static function instance()
    {
        if (!is_a(self::$__instance, 'Jetpack_Protect_Module')) {
            self::$__instance = new Jetpack_Protect_Module();
        }
        return self::$__instance;
    }

 function test_sends_failed_login_message()
 {
     Jetpack_Protect_Module::instance()->log_failed_attempt();
     $this->sender->do_sync();
     $action = $this->server_event_storage->get_most_recent_event('jpp_log_failed_attempt');
     $this->assertEquals('127.0.0.1', $action->args[0]);
 }