31 lines
1 KiB
HTML
31 lines
1 KiB
HTML
<!DOCTYPE html>
|
|
<title>Layout Instability: opacity:0</title>
|
|
<link rel="help" href="https://wicg.github.io/layout-instability/" />
|
|
<div id="target" style="position: absolute; top: 0; width: 400px; height: 400px; opacity: 0; background: blue">
|
|
<div id="child" style="position: relative; top: 0; width: 200px; height: 200px; opacity: 0.5; background: yellow"></div>
|
|
</div>
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<script src="resources/util.js"></script>
|
|
<script>
|
|
|
|
promise_test(async () => {
|
|
const watcher = new ScoreWatcher;
|
|
|
|
// Wait for the initial render to complete.
|
|
await waitForAnimationFrames(2);
|
|
|
|
// Shift target, for which no shift should be reported because it's not visible.
|
|
target.style.top = '200px';
|
|
|
|
await waitForAnimationFrames(2);
|
|
assert_equals(watcher.score, 0);
|
|
|
|
// Shift child, for which no shift should be reported, either.
|
|
child.style.top = '100px';
|
|
|
|
await waitForAnimationFrames(2);
|
|
assert_equals(watcher.score, 0);
|
|
}, 'opacity:0');
|
|
|
|
</script>
|