}

  public void testFixedLengthSplitZeroChunkLen() {
    assertThrows(IllegalArgumentException.class, () -> Splitter.fixedLength(0));
  }

  public void testFixedLengthSplitNegativeChunkLen() {
    assertThrows(IllegalArgumentException.class, () -> Splitter.fixedLength(-1));
  }

  public void testLimitLarge() {
    String simple = "abcd";