2, 2.0,
            8, 5.0,
            9, POSITIVE_INFINITY, // interpolating between 5.0 and POSITIVE_INFINITY
            10, POSITIVE_INFINITY);
  }

  public void testScale_index_compute_doubleCollection_positiveInfinity() {
    // interpolating between 5.0 and POSITIVE_INFINITY
    assertThat(Quantiles.scale(10).index(9).compute(ONE_TO_FIVE_AND_POSITIVE_INFINITY))
        .isPositiveInfinity();
  }