window.html | Explore in Territory

<!DOCTYPE html>
<meta charset="utf-8">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<body>
<script type="module">
import {WebFeature} from '/gen/third_party/blink/public/mojom/use_counter/metrics/web_feature.mojom.m.js';

// This test suite verifies that the following use counter work correctly:
// - kDOMClobberedWindowPropertyAccessed

test(() => {
    internals.clearUseCounter(document, WebFeature.kDOMClobberedWindowPropertyAccessed);
    assert_false(internals.isUseCounted(document, WebFeature.kDOMClobberedWindowPropertyAccessed));

    const div = document.createElement("div");
    div.id = "test1234";
    document.body.appendChild(div);
    // Check if the property is actually clobbered, and this should also
    // trigger the use counter.
    assert_equals(window.test1234, div);

    assert_true(internals.isUseCounted(document, WebFeature.kDOMClobberedWindowPropertyAccessed));
}, 'Clobbered property in window should be use-counted');

</script>
chromium/third_party/blink/web_tests/wpt_internal/dom-clobbering/window.html
