public FloatArrayAsIterable usingExactEquality() {
    return new FloatArrayAsIterable(EXACT_EQUALITY_CORRESPONDENCE, iterableSubject());
  }
@Test
  public void usingExactEquality_contains_failureWithNegativeZero() {
    expectFailureWhenTestingThat(array(1.0f, -0.0f, 3.0f)).usingExactEquality().contains(0.0f);
    assertFailureKeys("value of", "expected to contain", "testing whether", "but was");
    assertFailureValue("expected to contain", Float.toString(0.0f));
  }