public void testEmptyOffer(){
  SubmissionPublisher<Integer> p=basicPublisher();
  assertEquals(0,p.offer(1,null));
}

public void testEmptyOffer ( ) { SubmissionPublisher < Integer > p = basicPublisher ( ) ; assertEquals ( 0 , p . offer ( 1 , null ) ) ; }
offer to a publisher with no subscribers returns lag 0
