| Tests the TreeWalker. |
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| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". |
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| Test that TreeWalker.parent() doesn't set the currentNode to a node not under the root. |
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| PASS w.currentNode is subTree |
| PASS w.parentNode() is null |
| PASS w.currentNode is subTree |
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| Test that we handle setting the currentNode to arbitrary nodes not under the root element. |
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| PASS w.parentNode() is null |
| PASS w.currentNode is document.documentElement |
| PASS w.nextNode() is document.documentElement.firstChild |
| PASS w.currentNode is document.documentElement.firstChild |
| PASS w.previousNode() is null |
| PASS w.currentNode is document.documentElement |
| PASS w.firstChild() is document.documentElement.firstChild |
| PASS w.currentNode is document.documentElement.firstChild |
| PASS w.lastChild() is document.documentElement.lastChild |
| PASS w.currentNode is document.documentElement.lastChild |
| PASS w.nextSibling() is null |
| PASS w.currentNode is document.documentElement |
| PASS w.previousSibling() is null |
| PASS w.currentNode is document.documentElement |
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| Test how we handle the case when the traversed to node within the root, but the currentElement is not. |
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| PASS w.nextNode() is subTree |
| PASS w.lastChild() is subTree |
| PASS successfullyParsed is true |
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| TEST COMPLETE |
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