public FloatArrayAsIterable usingTolerance(double tolerance) {
    return new FloatArrayAsIterable(tolerance(tolerance), iterableSubject());
  }
@Test
  public void usingTolerance_contains_success() {
    assertThat(array(1.1f, TOLERABLE_2POINT2, 3.2f))
        .usingTolerance(DEFAULT_TOLERANCE)
        .contains(2.2f);
  }