LayoutTests/fast/dom/MutationObserver/observer-wrapper-dropoff-transient.html - Issue 12317072: Merge 143386

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Side by Side Diff: LayoutTests/fast/dom/MutationObserver/observer-wrapper-dropoff-transient.html

Issue 12317072: Merge 143386 (Closed) Base URL: http://svn.webkit.org/repository/webkit/branches/chromium/1410/

Patch Set: Created 7 years, 10 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2	2

3 <script src="../../js/resources/js-test-pre.js"></script>	3 <script src="../../js/resources/js-test-pre.js"></script>

4	4

5 <script>	5 <script>

6 description('MutationObserver wrappers should survive GC for passing into the ca llback even if JS has lost references and the only remaining observations are tr ansient.');	6 description('MutationObserver wrappers should survive GC for passing into the ca llback even if JS has lost references and the only remaining observations are tr ansient.');

7	7

8 jsTestIsAsync = true;	8 jsTestIsAsync = true;

9	9

10 function addObserver(node, fn) {	10 function addObserver(node, fn) {

11 var observer = new WebKitMutationObserver(fn);	11 var observer = new MutationObserver(fn);

12 observer.testProperty = true;	12 observer.testProperty = true;

13 observer.observe(node, {attributes:true, subtree: true});	13 observer.observe(node, {attributes:true, subtree: true});

14 }	14 }

15	15

16 onload = function() {	16 onload = function() {

17 var root = document.createElement('div');	17 var root = document.createElement('div');

18 var child = root.appendChild(document.createElement('span'));	18 var child = root.appendChild(document.createElement('span'));

19 addObserver(root, function(records, observer) {	19 addObserver(root, function(records, observer) {

20 window.observer = observer;	20 window.observer = observer;

21 shouldBe('observer.testProperty', 'true');	21 shouldBe('observer.testProperty', 'true');

22 finishJSTest();	22 finishJSTest();

23 });	23 });

24	24

25 root.removeChild(child);	25 root.removeChild(child);

26 child.setAttribute('foo', 'bar');	26 child.setAttribute('foo', 'bar');

27 root = null;	27 root = null;

28	28

29 gc();	29 gc();

30 };	30 };

31 </script>	31 </script>

32	32

33 <script src="../../js/resources/js-test-post.js"></script>	33 <script src="../../js/resources/js-test-post.js"></script>

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