diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/css/css-transitions/changing-while-transition-001.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-transitions/changing-while-transition-001.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-transitions/changing-while-transition-001.html | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-transitions/changing-while-transition-001.html b/testing/web-platform/tests/css/css-transitions/changing-while-transition-001.html new file mode 100644 index 0000000000..026b16877c --- /dev/null +++ b/testing/web-platform/tests/css/css-transitions/changing-while-transition-001.html @@ -0,0 +1,56 @@ +<!doctype html> +<html> +<head> +<meta charset=utf-8> +<title>CSS Transitions Test: behavior when transition-duration changes while transitioning</title> +<meta name="assert" content="Checks a change to the transition-duration +property does not affect an in-flight transition"> +<link rel="help" title="3. Starting of transitions" href="https://drafts.csswg.org/css-transitions/#starting"> + +<script src="/resources/testharness.js" type="text/javascript"></script> +<script src="/resources/testharnessreport.js" type="text/javascript"></script> +<script src="./support/helper.js" type="text/javascript"></script> + +</head> +<body> +<div id="log"></div> + +<script> +promise_test(async t => { + // Start a 100s transition 50% of the way through + const div = addDiv(t, { + style: 'transition: height 100s -50s linear; height: 0px', + }); + getComputedStyle(div).height; + div.style.height = '100px'; + assert_equals( + getComputedStyle(div).height, + '50px', + 'Transition should be initially 50% complete' + ); + + // Extend the transition-duration to 200s. + div.style.transitionDuration = '200s'; + + // If the change to the transition-duration was reflected, the + // computed height would now be '25px'. + assert_equals( + getComputedStyle(div).height, + '50px', + 'Even after updating the transition-duration, the transition should be 50% complete' + ); + + // Wait a frame just to be sure that the changed duration is not later + // updated. + await waitForFrame(); + + assert_greater_than_equal( + parseInt(getComputedStyle(div).height), + 50, + 'Even in the next frame the updated transition-duration should not apply' + ); +}, 'Changes to transition-duration should not affect in-flight transitions'); +</script> + +</body> +</html> |