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<!DOCTYPE HTML>
<meta charset=utf-8>
<title>Container Timing: observe with a node with containertiming and a text child</title>
<body>
<style>
body {
margin: 0;
}
</style>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/container-timing/resources/container-timing-helpers.js"></script>
<script src="/element-timing/resources/element-timing-helpers.js"></script>
<script>
let beforeRender;
async_test(function (t) {
assert_implements(window.PerformanceContainerTiming, "PerformanceContainerTiming is not implemented");
const observer = new PerformanceObserver(
t.step_func_done(function(entryList) {
assert_equals(entryList.getEntries().length, 1);
const entry = entryList.getEntries()[0];
checkContainerEntry(entry, 'div_ct', 'p_id', beforeRender)
})
);
observer.observe({entryTypes: ['container']});
// Add a div that is the container timing root
const div = document.createElement('div');
div.setAttribute('containertiming', 'div_ct');
document.body.appendChild(div);
const p = document.createElement('p');
p.id = 'p_id';
p.innerText = "This is a text";
div.appendChild(p);
beforeRender = performance.now();
}, 'Paint of the text child of container timing is reported.');
</script>
</body>
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