def _choose_host_filters(self, filter_cls_names):
"""Choose acceptable filters.
Since the caller may specify which filters to use we need to
have an authoritative list of what is permissible. This
function checks the filter names against a predefined set of
acceptable filters.
"""
if filter_cls_names is None:
filter_cls_names = CONF.scheduler_default_filters
if not isinstance(filter_cls_names, (list, tuple)):
filter_cls_names = [filter_cls_names]
good_filters = []
bad_filters = []
for filter_name in filter_cls_names:
found_class = False
for cls in self.filter_classes:
if cls.__name__ == filter_name:
found_class = True
good_filters.append(cls)
break
if not found_class:
bad_filters.append(filter_name)
if bad_filters:
msg = ", ".join(bad_filters)
raise exception.SchedulerHostFilterNotFound(filter_name=msg)
return good_filters
def test_scheduler_host_filter_not_found(self):
# Verify response code for exception.SchedulerHostFilterNotFound
filter_name = "fake_filter_name"
e = exception.SchedulerHostFilterNotFound(filter_name=filter_name)
self.assertEqual(404, e.code)
self.assertIn(filter_name, e.msg)
