private void VerifyRegistration(RoleName oldest)
{
EnterBarrier("before-" + oldest.Name + "-registration-verified");
RunOn(() =>
{
ExpectMsg<PointToPointChannel.RegistrationOk>();
GetConsumer(oldest).Tell(Consumer.GetCurrent.Instance);
ExpectMsg(0);
}, oldest);
EnterBarrier("after-" + oldest.Name + "-registration-verified");
}