checkbox-checkmark-animation.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /css/css-forms/checkbox-checkmark-animation.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>CSS Pseudo-Elements Test: ::checkmark & web animations (checkbox)</title>

<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">

<link rel="help" href="https://drafts.csswg.org/css-forms/#checkmark">

<link rel="help" href="https://drafts.csswg.org/web-animations-1/">

<meta name="assert" content="This test checks that ::checkmark on checkbox inputs can be animated with Web Animations.">

<style>

#checkbox { appearance: base; }

#checkbox::checkmark { all: unset; content: "x"; }

</style>

<input type="checkbox" id="checkbox" checked>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script>

test(function() {

  const cs = getComputedStyle(checkbox, "::checkmark");

  const anim = checkbox.animate([

    {color: "rgb(0, 100, 200)"},

    {color: "rgb(200, 0, 100)"},

  ], {

    pseudoElement: "::checkmark",

    duration: 2,

    delay: -1,

});

  this.add_cleanup(() => anim.cancel());

  assert_equals(cs.color, "rgb(100, 50, 150)", "color");

}, "::checkmark pseudo-element animates");

</script>