@Test
  @Ignore
  public void failingTest_to_be_checked() throws Exception {
    Person john = ImmutablePerson.builder().id("p1").name("John").age(30).build();
    repository.insert(john).getUnchecked();
    check(repository.find(criteria().age(30)).fetchAll().getUnchecked()).hasSize(1);
    check(repository.find(criteria().ageNot(30)).fetchAll().getUnchecked()).isEmpty();
  }
This one seems to fail: ageNot(30) should return no result.
mongo/test/org/immutables/mongo/fixture/criteria/PersonCriteriaTest.java