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1 <html> | |
2 <link rel="import" href="../resources/chai.html" /> | |
3 <link rel="import" href="../resources/mocha.html" /> | |
4 <script> | |
5 window.jsTestIsAsync = true; | |
6 | |
7 describe('MutationObservers', function() { | |
8 it ('must wait for the next loop when created during delivery', function(don
e) { | |
9 var order = []; | |
10 var div = document.createElement('div'); | |
11 | |
12 var observer3; | |
13 var observer1 = new MutationObserver(function(mutations) { | |
14 order.push(1); | |
15 if (!observer3) { | |
16 observer3 = new MutationObserver(function(mutations) { | |
17 order.push(3); | |
18 }); | |
19 observer3.observe(div, {attributes: true}); | |
20 div.setAttribute('foo', 'baz'); | |
21 } | |
22 }); | |
23 var observer2 = new MutationObserver(function(mutations) { | |
24 order.push(2); | |
25 }); | |
26 | |
27 observer1.observe(div, {attributes: true}); | |
28 observer2.observe(div, {attributes: true}); | |
29 div.setAttribute('foo', 'bar'); | |
30 setTimeout(function() { | |
31 assert.deepEqual(order, [1, 2, 1, 3]); | |
32 done(); | |
33 }, 0); | |
34 }); | |
35 }); | |
36 </script> | |
37 </html> | |
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