at: 1, expect: 'visible'},
  {at: 1.5, expect: 'visible'},
]);

test_no_interpolation({
  property: 'content-visibility',
  from: 'auto',
  to: 'visible'
});

test_interpolation({
  property: 'content-visibility',
  from: 'visible',
  to: 'visible'
}, [
  {at: -1, expect: 'visible'},
  {at: 0, expect: 'visible'},
  {at: 0.5, expect: 'visible'},
  {at: 1, expect: 'visible'},
  {at: 1.5, expect: 'visible'},
]);

test_interpolation({
  property: 'content-visibility',
  from: 'hidden',
  to: 'hidden'
}, [
  {at