fix managerTest for mocking event

Author: albertcht

tests/Server/ManagerTest.php

@@ -636,7 +636,7 @@ protected function getConfig($websocket = false)
     protected function getEvent($name, $default = true)
     {
         $event = m::mock('event')
-                  ->shouldReceive('fire')
+                  ->shouldReceive('dispatch')
                   ->with($name, m::any())
                   ->once();