contents.remove(next);
        assertThat(q).containsExactlyElementsIn(contents);
      }
      elements.add(next);
    }
    assertEquals(expected, elements);
  }

  /** Regression test for https://github.com/google/guava/issues/2658 */
  public void testRemoveRegression() {
    MinMaxPriorityQueue<Long> queue =
        MinMaxPriorityQueue.create(ImmutableList.of(2L, 3L, 0L, 4L, 1L));
    queue.remove(4L);

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