fune/testing/web-platform/tests/css/css-values/animations/calc-interpolation.html
Daniil Sakhapov a3fcafa0d7 Bug 1841245 [wpt PR 40828] - Make calc(NaN) behave as calc(0) when it's top level calculation, a=testonly
Automatic update from web-platform-tests
Make calc(NaN) behave as calc(0) when it's top level calculation

https://www.w3.org/TR/css-values-4/#top-level-calculation

calc-interpolation.html test changes due to the CSS Values 4 spec:

Dividing zero by zero, dividing ±∞ by ±∞, multiplying 0 by ±∞,
adding +∞ to −∞ (or the equivalent subtractions) produces NaN.

Interpolation of math functions, with each other or with numeric values
and other numeric-valued functions, is defined as
Vresult = calc((1 - p) * Va + p * Vb).

This means that the interpolation at p=0 is: calc((1 - 0) * 0px + 0 * (infinity * 1px), which simplifies to calc(0px + NaN), which should clamp to 0px.

Fixed: 1334599

Change-Id: I09f6a2fa9b60f17c5fc6562192f53918e365fe55
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4651881
Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org>
Commit-Queue: Daniil Sakhapov <sakhapov@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1164600}

--

wpt-commits: 475b89562e5669f3d846b911b23d557a282f3e4b
wpt-pr: 40828
2023-07-12 07:53:51 +00:00

136 lines
3.6 KiB
HTML

<!DOCTYPE html>
<meta charset="UTF-8">
<title>calc interpolation</title>
<link rel="help" href="https://drafts.csswg.org/css-values-3/#calc-notation">
<meta name="assert" content="calc supports animation by computed value">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<style>
.container {
position: relative;
width: 50px;
height: 50px;
border: black solid 2px;
display: inline-block;
margin-left: 10px;
margin-right: 10px;
background-color: white;
}
.target {
position: absolute;
width: 10px;
height: 50px;
background-color: black;
}
.expected {
background-color: green;
}
</style>
<body>
<template id="target-template">
<div class="container">
<div class="target"></div>
</div>
</template>
<div class="target" id="inf-target"></div>
<script>
const APPROX_INFINITY = (function() {
const target = document.getElementById("inf-target");
target.style.letterSpacing = "calc(1px * infinity)";
const inf = parseFloat(getComputedStyle(target).letterSpacing);
target.remove();
return inf;
}());
test_interpolation({
property: 'left',
from: '0px',
to: 'calc(infinity * 1px)',
target_names:['CSS Transitions', 'CSS Transitions with transition: all']
}, [
{at: -0.25, expect: `${APPROX_INFINITY * -0.25 }px`},
{at: 0, expect: '0px'},
{at: 0.25, expect: `${APPROX_INFINITY * 0.25}px`},
{at: 0.5, expect: `${APPROX_INFINITY * 0.5}px`},
{at: 0.75, expect: `${APPROX_INFINITY * 0.75}px`},
{at: 1, expect: `${APPROX_INFINITY}px`},
{at: 1.25, expect: `${APPROX_INFINITY * 1.25}px`}
]);
test_interpolation({
property: 'left',
from: '0px',
to: 'calc(infinity * 1px)',
target_names:['CSS Animations', 'Web Animations']
}, [
{at: -0.25, expect: `${-APPROX_INFINITY}px`},
{at: 0, expect: `0px`},
{at: 0.25, expect: `${APPROX_INFINITY}px`},
{at: 0.5, expect: `${APPROX_INFINITY}px`},
{at: 0.75, expect: `${APPROX_INFINITY}px`},
{at: 1, expect: `${APPROX_INFINITY}px`},
{at: 1.25, expect: `${APPROX_INFINITY}px`}
]);
test_interpolation({
property: 'left',
from: 'calc(50% - 25px)',
to: 'calc(100% - 10px)'
}, [
{at: -0.25, expect: '-10px'},
{at: 0, expect: '0px'},
{at: 0.25, expect: '10px'},
{at: 0.5, expect: '20px'},
{at: 0.75, expect: '30px'},
{at: 1, expect: '40px'},
{at: 1.25, expect: '50px'}
]);
test_interpolation({
property: 'text-indent',
from: 'calc(50% - 25px)',
to: 'calc(100% - 10px)'
}, [
{at: -0.25, expect: 'calc(((50% - 25px) * 1.25) + ((100% - 10px) * -0.25))'},
{at: 0, expect: 'calc(50% - 25px)'},
{at: 0.25, expect: 'calc(((50% - 25px) * 0.75) + ((100% - 10px) * 0.25))'},
{at: 0.5, expect: 'calc(((50% - 25px) * 0.5) + ((100% - 10px) * 0.5))'},
{at: 0.75, expect: 'calc(((50% - 25px) * 0.25) + ((100% - 10px) * 0.75))'},
{at: 1, expect: 'calc(100% - 10px)'},
{at: 1.25, expect: 'calc(((50% - 25px) * -0.25) + ((100% - 10px) * 1.25))'}
]);
test_interpolation({
property: 'text-indent',
from: '0em',
to: '100px'
}, [
{at: -0.25, expect: '-25px'},
{at: 0, expect: '0em'},
{at: 0.25, expect: '25px'},
{at: 0.5, expect: '50px'},
{at: 0.75, expect: '75px'},
{at: 1, expect: '100px'},
{at: 1.25, expect: '125px'}
]);
test_interpolation({
property: 'text-indent',
from: '0%',
to: '100px'
}, [
{at: -0.25, expect: 'calc(0% + -25px)'},
{at: 0, expect: '0%'},
{at: 0.25, expect: 'calc(0% + 25px)'},
{at: 0.5, expect: 'calc(0% + 50px)'},
{at: 0.75, expect: 'calc(0% + 75px)'},
{at: 1, expect: 'calc(0% + 100px)'},
{at: 1.25, expect: 'calc(0% + 125px)'}
]);
</script>
</body>