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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 describe('MutationObserver', function() { | |
6 it('should not interrupt delivery order on getting mutations during delivery',
function(done) { | |
7 function finish() { | |
8 assert.deepEqual(order, [1, 3, 2]); | |
9 done(); | |
10 } | |
11 | |
12 var order = []; | |
13 var div = document.createElement('div'); | |
14 | |
15 var observer1 = new MutationObserver(function(mutations) { | |
16 order.push(1); | |
17 div.appendChild(document.createElement('span')); | |
18 }); | |
19 var observer2 = new MutationObserver(function(mutations) { | |
20 order.push(2); | |
21 }); | |
22 var observer3 = new MutationObserver(function(mutations) { | |
23 order.push(3); | |
24 }); | |
25 | |
26 observer1.observe(div, {attributes: true}); | |
27 observer2.observe(div, {childList: true}); | |
28 observer3.observe(div, {attributes: true}); | |
29 div.setAttribute('foo', 'bar'); | |
30 setTimeout(finish, 0); | |
31 }); | |
32 }); | |
33 </script> | |
34 </html> | |
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