def testRemoveData( self ):
     shutil.copy( self.xmlSourcePath , self.sessionPath )
     transaction = Transaction( self.sessionPath , Transaction.WRITE )
     transaction.removeData( self.dataID[0] )
     transaction.commit()
     transaction = Transaction( self.sessionPath , Transaction.READ )
     self.assertFalse( transaction.hasData( self.dataID[0] ) )
     transaction.commit()