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1 <!doctype html> | |
2 <meta charset=utf-8> | |
3 <title>Document.createTreeWalker</title> | |
4 <script src=../../../../resources/testharness.js></script> | |
5 <script src=../../../../resources/testharnessreport.js></script> | |
6 <div id=log></div> | |
7 <script> | |
8 test(function() { | |
9 assert_throws(new TypeError(), function() { | |
10 document.createTreeWalker(); | |
11 }); | |
12 }, "Required arguments to createTreeWalker should be required."); | |
13 test(function() { | |
14 var tw = document.createTreeWalker(document.body); | |
15 assert_equals(tw.root, document.body); | |
16 assert_equals(tw.currentNode, document.body); | |
17 assert_equals(tw.whatToShow, 0xFFFFFFFF); | |
18 assert_equals(tw.filter, null); | |
19 }, "Optional arguments to createTreeWalker should be optional (1 passed)."); | |
20 test(function() { | |
21 var tw = document.createTreeWalker(document.body, 42); | |
22 assert_equals(tw.root, document.body); | |
23 assert_equals(tw.currentNode, document.body); | |
24 assert_equals(tw.whatToShow, 42); | |
25 assert_equals(tw.filter, null); | |
26 }, "Optional arguments to createTreeWalker should be optional (2 passed)."); | |
27 test(function() { | |
28 var tw = document.createTreeWalker(document.body, 42, null); | |
29 assert_equals(tw.root, document.body); | |
30 assert_equals(tw.currentNode, document.body); | |
31 assert_equals(tw.whatToShow, 42); | |
32 assert_equals(tw.filter, null); | |
33 }, "Optional arguments to createTreeWalker should be optional (3 passed, null)."
); | |
34 test(function() { | |
35 var fn = function() {}; | |
36 var tw = document.createTreeWalker(document.body, 42, fn); | |
37 assert_equals(tw.root, document.body); | |
38 assert_equals(tw.currentNode, document.body); | |
39 assert_equals(tw.whatToShow, 42); | |
40 assert_equals(tw.filter, fn); | |
41 }, "Optional arguments to createTreeWalker should be optional (3 passed, functio
n)."); | |
42 </script> | |
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