TEST :model groups (ALL) : , minOccurs=absent, maxOccurs=2
http://www.w3.org/TR/2004/REC-xmlschema-1-20041028/#Model_Groups
| Item | Value | 
|---|---|
| title | mgC013 - mgC013 | 
| name | mgC013 | 
| source | ../mgC013.xsd | 
| schemaName | ../mgC013.xsd | 
| keywords | schema negative | 
| package | javasoft.sqe.tests.modelgroups.mgc013 |