Floats.reverse(input);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testReverse(
      float[] input, int fromIndex, int toIndex, float[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Floats.reverse(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testReverseIndexed() {
    testReverse(new float[] {}, 0, 0, new float[] {});

    Ints.reverse(input);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testReverse(int[] input, int fromIndex, int toIndex, int[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Ints.reverse(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testReverseIndexed() {
    testReverse(new int[] {}, 0, 0, new int[] {});

    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testReverse(
      double[] input, int fromIndex, int toIndex, double[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Doubles.reverse(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testReverseIndexed() {
    testReverse(new double[] {}, 0, 0, new double[] {});

    Floats.reverse(input);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testReverse(
      float[] input, int fromIndex, int toIndex, float[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Floats.reverse(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testReverseIndexed() {
    testReverse(new float[] {}, 0, 0, new float[] {});

    Longs.reverse(input);
    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testReverse(long[] input, int fromIndex, int toIndex, long[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Longs.reverse(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testReverseIndexed() {
    testReverse(new long[] {}, 0, 0, new long[] {});

    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testReverse(
      boolean[] input, int fromIndex, int toIndex, boolean[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Booleans.reverse(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testReverseIndexed() {
    testReverse(new boolean[] {}, 0, 0, new boolean[] {});

    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testReverse(
      boolean[] input, int fromIndex, int toIndex, boolean[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    Booleans.reverse(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testReverseIndexed() {
    testReverse(new boolean[] {}, 0, 0, new boolean[] {});

    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testSortDescending(
      int[] input, int fromIndex, int toIndex, int[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    UnsignedInts.sortDescending(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testSortDescendingIndexed() {

    assertThat(input).isEqualTo(expectedOutput);
  }

  private static void testSortDescending(
      long[] input, int fromIndex, int toIndex, long[] expectedOutput) {
    input = Arrays.copyOf(input, input.length);
    UnsignedLongs.sortDescending(input, fromIndex, toIndex);
    assertThat(input).isEqualTo(expectedOutput);
  }

  public void testSortDescendingIndexed() {

        for (int i = 0; i < index; i++) {
            iterator.next();
        }
        return iterator;
    }

    @Override
    public List<S> subList(int fromIndex, int toIndex) {
        throw new UnsupportedOperationException("Not implemented yet.");
    }

    private static class FilteredListIterator<T> implements ListIterator<T> {
        private final Iterator<T> iterator;