assertThat(map.get(refreshKey)).isEqualTo(refreshKey + suffix);
  }

  @SuppressWarnings("ThreadPriorityCheck") // doing our best to test for races
  public void testExpandDuringLoading() throws InterruptedException {
    int count = 3;
    AtomicInteger callCount = new AtomicInteger();
    // tells the computing thread when to start computing

    assertThat(map.get(refreshKey)).isEqualTo(refreshKey + suffix);
  }

  @SuppressWarnings("ThreadPriorityCheck") // doing our best to test for races
  public void testExpandDuringLoading() throws InterruptedException {
    int count = 3;
    AtomicInteger callCount = new AtomicInteger();
    // tells the computing thread when to start computing