@Override
  public void isEqualTo(@Nullable Object expected) {
    super.isEqualTo(expected);
  }
@Test
  public void isEqualTo_WithoutToleranceParameter_Fail_NotAnArray() {
    expectFailureWhenTestingThat(array(2.2d, 3.3d, 4.4d)).isEqualTo(new Object());
  }