f option is frozen with force_default_on_freeze property, owner must be 'default' check property when tried to change owner

tiramisu/value.py

@@ -22,7 +22,7 @@ from tiramisu.error import ConfigError, SlaveError, PropertiesOptionError
 from tiramisu.setting import owners, expires_time, undefined
 from tiramisu.autolib import carry_out_calculation
 from tiramisu.i18n import _
-from tiramisu.option import SymLinkOption, DynSymLinkOption
+from tiramisu.option import SymLinkOption, DynSymLinkOption, Option
 
 
 class Values(object):
@@ -350,11 +350,18 @@ class Values(object):
 
     def _getowner(self, opt, path, validate_properties=True,
                   force_permissive=False, validate_meta=True):
+        if not isinstance(opt, Option) and not isinstance(opt, DynSymLinkOption):
+            raise ConfigError(_('owner only avalaible for an option'))
+        context = self._getcontext()
+        setting = context.cfgimpl_get_settings()
+        if 'frozen' in setting[opt] and \
+                'force_default_on_freeze' in setting[opt]:
+            return owners.default
         if validate_properties:
             self._getitem(opt, path, True, force_permissive, None, True)
         owner = self._p_.getowner(path, owners.default)
         if validate_meta:
-            meta = self._getcontext().cfgimpl_get_meta()
+            meta = context.cfgimpl_get_meta()
             if owner is owners.default and meta is not None:
                 owner = meta.cfgimpl_get_values()._getowner(opt, path)
         return owner
@@ -376,6 +383,11 @@ class Values(object):
         if self._getowner(opt, path) == owners.default:  # pragma: optional cover
             raise ConfigError(_('no value for {0} cannot change owner to {1}'
                                 '').format(path, owner))
+        self._getcontext().cfgimpl_get_settings().validate_properties(opt,
+                                                                      False,
+                                                                      True,
+                                                                      path)
+
         self._p_.setowner(path, owner)
 
     def is_default_owner(self, opt, validate_properties=True,