svoid test_tempSetCustomRandomizerForThisThread() {
  repeat 2 {
    {
      temp tempSetCustomRandomizerForThisThread(predictableRandom());
      assertEqualsVerbose(60, random(100));
      assertEqualsVerbose(48, random(100));
    }
    
    // check that we're back to the default randomizer
    assertEquals(ThreadLocalRandom.current(), defaultRandomizer());
  }
}