| TestCase1 |
| 1 |
| true |
| TestCase2 - preventExtensions & add a property |
| x,y |
| false |
| TestCase3 - preventExtensions & delete a property |
| undefined |
| false |
| TestCase4 - preventExtensions & modify a property |
| x,y |
| false |
| 40 |
| TestCase5 - preventExtension on global object & declare a var |
| Exception: TypeError |
| TestCase6 - preventExtensions, delete property and set remaining properties to non configurable/writable - SimpleDictionaryTypeHandler |
| true |
| true |
| TestCase7 - preventExtensions, delete property and set remaining properties to non configurable/writable - DictionaryTypeHandler |
| true |
| true |
