TEST :model groups (ALL) : group' with 'all', appear under 'schema', whiche is part of a complexType, and particles in all has minOccurs=0, maxOccurs=1
http://www.w3.org/TR/2004/REC-xmlschema-1-20041028/#Model_Groups
| Item | Value | 
|---|---|
| title | mgO026 - mgO026 | 
| name | mgO026 | 
| source | ../mgO026.xsd | 
| schemaName | ../mgO026.xsd | 
| keywords | schema negative | 
| package | javasoft.sqe.tests.modelgroups.mgo026 |