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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('Test MutationObserver.observe', function() { | |
6 it('should respect character data options', function() { | |
7 var observer = new MutationObserver(function() {}); | |
8 var text = document.createTextNode('0'); | |
9 | |
10 observer.observe(text, {characterDataOldValue: true}); | |
11 text.data = '1'; | |
12 var records = observer.takeRecords(); | |
13 assert.equal(records.length, 1); | |
14 assert.equal(records[0].oldValue, 0); | |
15 observer.disconnect(); | |
16 | |
17 observer.observe(text, {characterDataOldValue: false}); | |
18 text.data = '2'; | |
19 var records = observer.takeRecords(); | |
20 assert.equal(records.length, 1); | |
21 assert.isNull(records[0].oldValue); | |
22 observer.disconnect(); | |
23 }); | |
24 }); | |
25 </script> | |
26 </html> | |
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