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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('Non-relevant properties on mutation records should be null, except for
NodeLists, which should be empty', function() { | |
6 | |
7 var observer = new MutationObserver(function() {}); | |
8 | |
9 it('on characterData records', function() { | |
10 var text = document.createTextNode('something'); | |
11 observer.observe(text, {characterData: true}); | |
12 text.data = 'something else'; | |
13 var record = observer.takeRecords()[0]; | |
14 assert.isNull(record.attributeName); | |
15 assert.isNull(record.oldValue); | |
16 assert.isNull(record.previousSibling); | |
17 assert.isNull(record.nextSibling); | |
18 assert.equal(record.addedNodes.length, 0); | |
19 assert.equal(record.removedNodes.length, 0); | |
20 }); | |
21 it('on childList records', function() { | |
22 var div = document.createElement('div'); | |
23 observer.observe(div, {childList: true}); | |
24 div.appendChild(document.createElement('span')); | |
25 record = observer.takeRecords()[0]; | |
26 assert.isNull(record.attributeName); | |
27 assert.isNull(record.oldValue); | |
28 }); | |
29 it('on attribute records', function() { | |
30 var div = document.createElement('div'); | |
31 observer.observe(div, {attributes: true}); | |
32 div.setAttribute('data-foo', 'bar'); | |
33 record = observer.takeRecords()[0]; | |
34 assert.isNull(record.oldValue); | |
35 assert.isNull(record.previousSibling); | |
36 assert.isNull(record.nextSibling); | |
37 assert.equal(record.addedNodes.length, 0); | |
38 assert.equal(record.removedNodes.length, 0); | |
39 }); | |
40 }); | |
41 </script> | |
42 </html> | |
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