}
        for (Integer v : replica.keySet()) {
          assertThat(mmHeap).contains(v);
        }
        assertIntact(mmHeap);
        currentHeapSize--;
        assertEquals(currentHeapSize, mmHeap.size());
      }
    }
    assertEquals(currentHeapSize, mmHeap.size());
    assertIntact(mmHeap);
  }

  public void testSmall() {
    MinMaxPriorityQueue<Integer> mmHeap = MinMaxPriorityQueue.create();