moelholm

  // >>> How to use
  assertEventualCollectionCondition(
                () -> em.createQuery("from Dog").getResultList(),
                Collection::isEmpty);
   
   // >>> 

    private <T> void assertEventualCollectionCondition(Supplier<Collection<T>> supplier, Predicate<Collection<T>> test) throws Exception {
        assertEventualCollectionCondition(30, TimeUnit.SECONDS, supplier, test);