<!DOCTYPE html>
<html>
<head>
<style>
div.content1 {
z-index: 3;
position: absolute;
top: 0px;
background-color: white;
width: 100vw;
height: 100vh;
}
div.empty {
z-index: 1;
position: absolute;
top: 100vh;
width: 100vw;
height: 100vh;
}
div.content2 {
z-index: 3;
position: absolute;
top: 200vh;
background-color: white;
width: 100vw;
height: 100vh;
}
iframe {
z-index: 2;
position: fixed;
width: 100vw;
height: 100vh;
border: 0px;
background-color: blue;
}
p {
position: fixed;
}
</style>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<script src="resources/large-sticky-ad-testharness.js"></script>
</head>
<body marginwidth="0" marginheight="0">
<!-- To trigger the first contentful paint at the very start -->
<p>some content</p>
<div class="content1">some content</div>
<div class="empty"></div>
<div class="content2">some content</div>
<script>
promise_test(async function(t) {
// Create the large-sticky-ad.
appendAdFrameTo(document.body);
// Scroll down to the position where the parallax-ad is no longer
// covered by "content1" and becomes visible.
window.scrollTo(0, window.innerHeight);
// After 1500ms, force a layout update so that the large-sticky-ad
// detector is aware of the candidate.
await timeout(1500);
await forceLayoutUpdate();
assert_false(internals.isUseCounted(document, kLargeStickyAd));
// Scroll further down to the position where the parallax-ad is covered by
// "content2" and becomes invisible again.
window.scrollTo(0, window.innerHeight * 2);
// After 1500ms, force a layout update so that the large-sticky-ad
// detector is aware of the dismissal of the candidate. We expect no use
// counter for kLargeStickyAd.
await timeout(1500);
await forceLayoutUpdate();
assert_false(internals.isUseCounted(document, kLargeStickyAd));
}, "Test parallax-ad while scrolling over the page. In this case, we expect no use counter for kLargeStickyAd.");
</script>
</body>
</html>