File: TreeWalker-realm.html

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<!doctype html>
<title>TreeWalker tests</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<body>
<script>
test(t => {
  const i = document.createElement("iframe");
  i.srcdoc = "<!DOCTYPE html>";
  document.body.appendChild(i);
  t.add_cleanup(() => i.remove());

  const walker = document.createTreeWalker(i.contentDocument,
                                           NodeFilter.SHOW_ELEMENT);
  walker.nextNode();
  assert_true(walker.currentNode instanceof i.contentWindow.Node);
}, "Node returned by TreeWalker from different realm");

test(t => {
  const i = document.createElement("iframe");
  i.srcdoc = "<!DOCTYPE html>";
  document.body.appendChild(i);
  t.add_cleanup(() => i.remove());

  let acceptNode_node;
  const walker = document.createTreeWalker(
      i.contentDocument, NodeFilter.SHOW_ELEMENT,
      {
          acceptNode(node) {
              acceptNode_node = node;
              return NodeFilter.FILTER_ACCEPT;
          }
      });

  walker.nextNode();
  assert_true(acceptNode_node instanceof i.contentWindow.Node);
  assert_true(walker.currentNode instanceof i.contentWindow.Node);
}, "Node returned by TreeWalker from different realm with acceptNode");
</script>
</body>