def check_decl(self, name, val):
gdecl = AcProgVars.declare_gvars(name_filter = lambda x : True)[name]
self.assertEqual(gdecl.get_xxx_default(GVars.VAR), val)
self.assertEqual(gdecl.get_xxx_key(GVars.ENV), name)
self.assertEqual(gdecl.get_xxx_key(GVars.VAR), name)
