checkStrength(map, Strength.WEAK, Strength.STRONG);
    assertSame(EntryFactory.WEAK, map.entryFactory);
  }

  public void testSetWeakValues() {
    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder().weakValues());
    checkStrength(map, Strength.STRONG, Strength.WEAK);
    assertSame(EntryFactory.STRONG, map.entryFactory);
  }

    checkStrength(map, Strength.WEAK, Strength.STRONG);
    assertSame(EntryFactory.WEAK, map.entryFactory);
  }

  public void testSetWeakValues() {
    LocalCache<Object, Object> map = makeLocalCache(createCacheBuilder().weakValues());
    checkStrength(map, Strength.STRONG, Strength.WEAK);
    assertSame(EntryFactory.STRONG, map.entryFactory);
  }

  boolean usesAccessEntries() {
    return usesAccessQueue() || recordsAccess();
  }

  boolean usesKeyReferences() {
    return keyStrength != Strength.STRONG;
  }

  boolean usesValueReferences() {
    return valueStrength != Strength.STRONG;
  }

  enum Strength {
    /*
     * TODO(kevinb): If we strongly reference the value and aren't loading, we needn't wrap the
     * value. This could save ~8 bytes per entry.

      Pray how did you manage to do it?'

    `In my youth,' said his father, `I took to the law,
      And argued each case with my wife;
    And the muscular strength, which it gave to my jaw,
      Has lasted the rest of my life.'

    `You are old,' said the youth, `one would hardly suppose
      That your eye was as steady as ever;