public DoubleArrayAsIterable usingExactEquality() {
    return new DoubleArrayAsIterable(EXACT_EQUALITY_CORRESPONDENCE, iterableSubject());
  }
@Test
  public void usingExactEquality_containsExactly_primitiveDoubleArray_failure() {
    expectFailureWhenTestingThat(array(1.1, 2.2, 3.3))
        .usingExactEquality()
        .containsExactly(array(2.2, 1.1));
    assertFailureKeys(
        "value of", "unexpected (1)", "---", "expected", "testing whether", "but was");
    assertFailureValue("unexpected (1)", "3.3");
  }