reallyTestAllMatches(matcher.precomputed().negate(), s);
    reallyTestNoMatches(forPredicate(matcher), s);

    reallyTestNoMatches(matcher, new StringBuilder(s));
  }

  public void testAllMatches() {
    doTestAllMatches(CharMatcher.any(), "blah");
    doTestAllMatches(isNot('a'), "bcde");
    doTestAllMatches(is('a'), "aaaa");
    doTestAllMatches(noneOf("CharMatcher"), "zxqy");