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<!DOCTYPE html>
<link rel=author href="mailto:jarhar@chromium.org">
<link rel=help href="https://github.com/w3c/csswg-drafts/issues/6429">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<body>
<script>
const alwaysBlock = [
{at: -1, expect: 'block'},
{at: 0, expect: 'block'},
{at: 0.1, expect: 'block'},
{at: 0.9, expect: 'block'},
{at: 1, expect: 'block'},
{at: 1.5, expect: 'block'},
];
const alwaysNone = [
{at: -1, expect: 'none'},
{at: 0, expect: 'none'},
{at: 0.1, expect: 'none'},
{at: 0.9, expect: 'none'},
{at: 1, expect: 'none'},
{at: 1.5, expect: 'none'},
];
test_interpolation({
property: 'display',
from: 'block',
to: 'none',
// transition:all is not supposed to allow display to be transitioned.
'CSS Transitions with transition: all': alwaysNone
}, [
{at: -1, expect: 'block'},
{at: 0, expect: 'block'},
{at: 0.1, expect: 'block'},
{at: 0.9, expect: 'block'},
{at: 1, expect: 'none'},
{at: 1.5, expect: 'none'},
]);
// This transitions tests expect 'block' at every point because transitioning
// from display:none does not provide an initial style. This is expected and
// can be worked around by using @initial.
test_interpolation({
property: 'display',
from: 'none',
to: 'block',
'CSS Transitions with transition: all': alwaysBlock,
'CSS Transitions': alwaysBlock
}, [
{at: -1, expect: 'none'},
{at: 0, expect: 'none'},
{at: 0.1, expect: 'block'},
{at: 0.9, expect: 'block'},
{at: 1, expect: 'block'},
{at: 1.5, expect: 'block'},
]);
test_no_interpolation({
property: 'display',
from: 'inline',
to: 'block'
});
test_interpolation({
property: 'display',
from: 'block',
to: 'block'
}, alwaysBlock);
test_interpolation({
property: 'display',
from: 'none',
to: 'none'
}, alwaysNone);
</script>
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