third_party/WebKit/LayoutTests/fast/dom/document-body-getter-setter.html

   1 <!DOCTYPE html>
   2
   3 <script src="../../resources/js-test.js"></script>
   4
   5 <script>
   6 description('Tests getting and assigning values to document.body');
   7
   8 onload = function() {
   9     frame = document.createElement('iframe');
  10     document.body.appendChild(frame);
  11
  12     shouldThrow('frame.contentDocument.body = document.createElement("div")', '"HierarchyRequestError: Failed to set the \'body\' property on \'Document\': The new body element is of type \'DIV\'. It must be either a \'BODY\' or \'FRAMESET\' element."');
  13     shouldNotThrow('frame.contentDocument.body = document.createElement("frameset")');
  14     shouldBe('frame.contentDocument.documentElement.childNodes.length', '2');
  15     shouldNotThrow('frame.contentDocument.body = document.createElement("body")');
  16     shouldBe('frame.contentDocument.documentElement.childNodes.length', '2');
  17
  18     observer = new MutationObserver(function(records) { });
  19     observer.observe(frame.contentDocument, { subtree: true, childList: true });
  20     // If the nodes are the same this should be a noop.
  21     frame.contentDocument.body = frame.contentDocument.body;
  22     shouldBe('observer.takeRecords().length', '0');
  23
  24     // WebKit calls importNode() and appends a clone instead of the element you wanted.
  25     newBody = document.createElement("body");
  26     frame.contentDocument.body = newBody;
  27     shouldBe('frame.contentDocument.body', 'newBody');
  28
  29     newBody = frame.contentDocument.createElement('body');
  30     frame.contentDocument.body = newBody;
  31     shouldBe("frame.contentDocument.body", "newBody")
  32
  33     var html = frame.contentDocument.documentElement;
  34     html.appendChild(document.createElement('body'));
  35     html.appendChild(document.createElement('frameset'));
  36     shouldBeEqualToString('frame.contentDocument.body.tagName', 'BODY');
  37 };
  38 </script>
  39