third_party/WebKit/LayoutTests/imported/web-platform-tests/dom/nodes/MutationObserver-disconnect.html - Issue 1988983002: Move the dom directory from web-platform-tests/ to wpt/.

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Issue 1988983002: Move the dom directory from web-platform-tests/ to wpt/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Created 4 years, 7 months ago

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1 <!DOCTYPE HTML>

2 <meta charset=utf-8>

3 <title>MutationObservers: disconnect</title>

4 <script src="../../../../resources/testharness.js"></script>

5 <script src="../../../../resources/testharnessreport.js"></script>

6 <h1>MutationObservers: disconnect</h1>

7 <div id="log"></div>

8 <section style="display: none">

9 <p id='n00'></p>

10 </section>

11 <script>

12 var n00 = document.getElementById('n00');

13 var parentTest = async_test("subtree mutations");

14 function masterMO(sequence, obs) {

15 parentTest.step(function() {

16 assert_equals(sequence.length, 4, "mutation records must match");

17 });

18 parentTest.done();

19 }

20 parentTest.step(function() {

21 (new MutationObserver(masterMO)).observe(n00.parentNode, {"subtree": true, "at tributes": true});

22 });

23

24 var disconnectTest = async_test("disconnect discarded some mutations");

25 function observerCallback(sequence, obs) {

26 disconnectTest.step(function() {

27 assert_equals(sequence.length, 1);

28 assert_equals(sequence[0].type, "attributes");

29 assert_equals(sequence[0].attributeName, "id");

30 assert_equals(sequence[0].oldValue, "latest");

31 disconnectTest.done();

32 });

33 }

34

35 var observer;

36 disconnectTest.step(function() {

37 observer = new MutationObserver(observerCallback);

38 observer.observe(n00, {"attributes": true});

39 n00.id = "foo";

40 n00.id = "bar";

41 observer.disconnect();

42 observer.observe(n00, {"attributes": true, "attributeOldValue": true});

43 n00.id = "latest";

44 observer.disconnect();

45 observer.observe(n00, {"attributes": true, "attributeOldValue": true});

46 n00.id = "n0000";

47 });

48 </script>

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