chromium/third_party/blink/web_tests/editing/pasteboard/copy_and_paste_with_link.html

<!doctype html>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
<script src="../assert_selection.js"></script>
<script>
// This tests for a bug where a copied link wouldn't paste as a link. Both
// editable regions below should contain a link.
selection_test(
    [
        '<div contenteditable>^<a href="http://foo/">ab</a>|</div>',
        '<div contenteditable id="paste"><br></div>',
    ],
    selection => {
        selection.document.execCommand('copy');
        const paste = selection.document.getElementById('paste');
        selection.collapse(paste, 0);
        selection.document.execCommand('paste');
    },
    [
        '<div contenteditable><a href="http://foo/">ab</a></div>',
        '<div contenteditable id="paste"><a href="http://foo/">ab|</a></div>',
    ],
    'Copy & Paste link');
</script>