box-reflect.html - mozsearch

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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:
- /intersection-observer/v2/box-reflect.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta name="viewport" content="width=device-width,initial-scale=1">

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

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

<script src="../resources/intersection-observer-test-utils.js"></script>

<style>

body, html {

  margin: 0;

pre, #log {

  position: absolute;

  top: 0;

  left: 200px;

#reflect {

  width: 100px;

  height: 100px;

  background-color: hotpink;

  -webkit-box-reflect: below 10px;

  margin: 10px 0;

</style>

<div id="reflect"></div>

<div id="target">Hello, world!</div>

<script>

var delay = 100;

var entries = [];

var target;

var supported = CSS.supports("-webkit-box-reflect", "below 10px");

runTestCycle(function() {

  target = document.getElementById("target");

  assert_true(!!target, "target exists");

  let observer = new IntersectionObserver(function(changes) {

    entries = entries.concat(changes)

  }, {trackVisibility: true, delay: delay});

  observer.observe(target);

  entries = entries.concat(observer.takeRecords());

  assert_equals(entries.length, 0, "No initial notifications.");

  runTestCycle(step0, "First rAF.", delay);

}, "IntersectionObserverV2 detects occlusion from -webkit-box-reflect (if supported).", delay);

function step0() {

  assert_equals(entries.length, 1, "Initial notification.");

  assert_equals(entries[0].isVisible, !supported, "Occluded if -webkit-box-reflect is supported.");

</script>