.5, expect: 'polygon(nonzero, 37.5px 37.5px, 62.5px 62.5px, 87.5px 87.5px)'}
]);

test_no_interpolation({
  property: 'shape-outside',
  from: 'polygon(evenodd, 0px 0px, 25px 25px, 50px 50px)',
  to: 'polygon(nonzero, 25px 25px, 50px 50px, 75px 75px)',
});

test_interpolation({
  property: 'shape-outside',
  from: 'inset(100%)',
  to: 'inset(120%)',
}, [
  {at: -0.3, expect: 'inset(94%)'},
  {at: 0, expect: 'inset(100%)'},
  {at: 0.3, expect: 'inset(106%)'},
  {at: 0.6, expect: 'inset(112%)'},
  {at: 1, exp