, expect: "3fr repeat(2, 4fr 30px 50px) 3fr"}
      ]);

      // Exercise <auto-track-list>
      test_no_interpolation({
        property: 'grid-template-columns',
        from: "10px repeat(auto-fill, minmax(25px, 1fr)) 10px",
        to: "20px 20px repeat(auto-fill, minmax(30px, 1fr))"
      });

      test_no_interpolation({
        property: 'grid-template-columns',
        from: "10px repeat(auto-fill, minmax(25px, 1fr)) 10px",
        to: "20px repeat(auto-fit, minmax(30px, 1fr)) 20px"
      });

  