0px 5px cw small)'},
      ]);

      test_interpolation({
        property: 'offset-path',
        from: 'shape(from 5px -5%, hline to 10px, vline by 10rem, hline by 8.25px, close, vline by 3pt)',
        to: 'shape(from -5px 5px, hline to 20px, vline by 10%, hline by 1em, close, vline by 6pt)',
      }, [
        {at: -0.3, expect: 'shape(from 8px calc(-6.5% - 1.5px), hline to 7px, vline by calc(-3% + 208px), hline by 5.92px, close, vline by 2.8px)'},
        {at: 0, expect: 'shape(from 5px -5%, hline to 