TEST :Syntax Checking for Attribute Declaration (ID) : Test attributeGroup declaration: can only reference global attributeGroup parent is extension, ref=''
http://www.w3.org/TR/2004/REC-xmlschema-1-20041028/#cAttribute_Group_Definitions
| Item | Value | 
|---|---|
| title | attgC030 - attgC030 | 
| name | attgC030 | 
| source | ../attgC030.xsd | 
| schemaName | ../attgC030.xsd | 
| keywords | schema negative | 
| package | javasoft.sqe.tests.attributegroup.attgc030 |