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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /html/syntax/parsing/adoption-agency-reparenting-inner-loop-cycle.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="utf-8">
<title>Adoption agency: cycle after an inner-loop iteration</title>
<link rel="help" href="https://html.spec.whatwg.org/multipage/parsing.html#adoption-agency-algorithm">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/adoption-agency-reparenting.js"></script>
<body>
<script>
// Isolated because it has crashed implementations.
//
// Like the cycle test, but with an extra formatting element (<i>) between the
// formatting element and the furthest block, so the inner loop runs an iteration
// (cloning <i> and appending the furthest block to it) before the cycle-inducing
// "Insert lastNode ... at the adjusted insertion location" step. The script
// detaches #fb then moves #ca inside it, so lastNode ends up containing the
// common ancestor.
promise_test(async t => {
const iframe = await parseInIframe(t, `<div id=ca><b><i><p id=fb><script>window.fb=document.getElementById('fb');window.ca=document.getElementById('ca');document.body.appendChild(window.fb);window.fb.appendChild(window.ca)<\/script></b></div>`);
const w = iframe.contentWindow;
assert_equals(tree(iframe.contentDocument.body), ``,
"main document body is empty (the cycle-inducing move was dropped)");
assert_false(w.fb.isConnected, "furthest block ends up detached");
assert_false(w.ca.isConnected, "common ancestor ends up detached");
}, "Adoption agency cycle reached after an inner-loop iteration");
</script>