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Update web-platform-tests to revision d7afcb8708eac08a614d161d5622a48172daf7e3

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WPT Sync Bot 2019-05-15 10:40:54 -04:00 • committed by Josh Matthews
parent 6f8bb4dd40
commit edff458e23
791 changed files with 17647 additions and 10322 deletions
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53
tests/wpt/web-platform-tests/element-timing/invisible-images.html Normal file
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<!DOCTYPE HTML>
<meta charset=utf-8>
<title>Element Timing: invisible images are not observable</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#opacity0 {
opacity: 0;
}
#visibilityHidden {
visibility: hidden;
}
#displayNone {
display: none;
}
</style>
<script>
async_test(function (t) {
const observer = new PerformanceObserver(
t.step_func_done(() => {
// The image should not have caused an entry, so fail test.
assert_unreached('Should not have received an entry!');
})
);
observer.observe({entryTypes: ['element']});
// We add the images during onload to be sure that the observer is registered
// in time for it to observe the element timing.
window.onload = () => {
const img = document.createElement('img');
img.src = 'resources/square100.png';
img.setAttribute('elementtiming', 'my_image');
img.setAttribute('id', 'opacity0');
document.body.appendChild(img);
const img2 = document.createElement('img');
img2.src = 'resources/square20.png';
img2.setAttribute('elementtiming', 'my_image2');
img2.setAttribute('id', 'visibilityHidden');
document.body.appendChild(img2);
const img3 = document.createElement('img');
img3.src = 'resources/circle.svg';
img3.setAttribute('elementtiming', 'my_image3');
img3.setAttribute('id', 'displayNone');
document.body.appendChild(img3);
// Images have been added but should not cause entries to be dispatched.
// Wait for 500ms and end test, ensuring no entry was created.
t.step_timeout(() => {
t.done();
}, 500);
};
}, 'Images with opacity: 0, visibility: hidden, or display: none are not observable.');
</script>