| This tests that the querySelector, querySelectorAll and matchesSelector (webkitMatchesSelector) correctly stringify null and undefined to "null" and "undefined". | 
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 | On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | 
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 | PASS document.querySelector(null) is nullNode | 
 | PASS document.querySelector(undefined) is undefinedNode | 
 | PASS document.querySelectorAll(null).length is 1 | 
 | PASS document.querySelectorAll(null).item(0) is nullNode | 
 | PASS document.querySelectorAll(undefined).length is 1 | 
 | PASS document.querySelectorAll(undefined).item(0) is undefinedNode | 
 | PASS nullNode.webkitMatchesSelector(null) is true | 
 | PASS undefinedNode.webkitMatchesSelector(undefined) is true | 
 | PASS successfullyParsed is true | 
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 | TEST COMPLETE | 
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