Unit test always run the cluster and remoting service

When I run sbt test , the unit test always run the cluster:

akka.event.slf4j.Slf4jLogger - Slf4jLogger started
15:31:31.589 [channel-ChannelRoutesSpec-akka.actor.default-dispatcher-2] [xin-deepnet] INFO  akka.remote.Remoting - Starting remoting
15:31:31.719 [channel-ChannelRoutesSpec-akka.actor.default-dispatcher-4] [xin-deepnet] INFO  akka.remote.Remoting - Remoting started; listening on addresses :[akka.tcp://dcs-channel-ChannelRoutesSpec@]

Then the test will fail by the Port already used, is there any method to prevent the remoting and cluster in the unit tests? or Just need to make the cluster port random when doing the unit test?

find the reason: need config .configs(MultiJvm)

So if you turn on MultiJvm you will be able run without remoting and cluster options from the config at unit test time? Or is this just a workaround?