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|  | (Empty) | 
| 1 Tests that CharacterData.appendData() argument is mandatory. |  | 
| 2 |  | 
| 3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE
    ". |  | 
| 4 |  | 
| 5 |  | 
| 6 PASS text.data is "abcd" |  | 
| 7 PASS text.__proto__.__proto__ is CharacterData.prototype |  | 
| 8 PASS text.appendData('efg') did not throw exception. |  | 
| 9 PASS text.data is "abcdefg" |  | 
| 10 PASS text.appendData() threw exception TypeError: Not enough arguments. |  | 
| 11 PASS text.data is "abcdefg" |  | 
| 12 PASS successfullyParsed is true |  | 
| 13 |  | 
| 14 TEST COMPLETE |  | 
| 15 |  | 
| OLD | NEW | 
|---|