public FloatArrayAsIterable usingExactEquality() {
    return new FloatArrayAsIterable(EXACT_EQUALITY_CORRESPONDENCE, iterableSubject());
  }
@Test
  public void usingExactEquality_contains_successWithNaN() {
    assertThat(array(1.0f, NaN, 3.0f)).usingExactEquality().contains(NaN);
  }