@Override
  public void isEqualTo(@Nullable Object expected) {
    super.isEqualTo(expected);
  }
@Test
  public void isEqualTo_WithoutToleranceParameter_Fail_NotEqual() {
    expectFailureWhenTestingThat(array(2.2d)).isEqualTo(array(OVER_2POINT2));
    assertFailureValue("expected", "[2.2000000000000006]");
    assertFailureValue("but was", "[2.2]");
    assertFailureValue("differs at index", "[0]");
  }