public DoubleArrayAsIterable usingTolerance(double tolerance) {
    return new DoubleArrayAsIterable(tolerance(tolerance), iterableSubject());
  }
@Test
  public void usingTolerance_contains_success() {
    assertThat(array(1.1, TOLERABLE_2POINT2, 3.3)).usingTolerance(DEFAULT_TOLERANCE).contains(2.2);
  }