def test_get_namespaces_empty():
storage = create_autospec(IDMappingStorage, spec_set=True, instance=True)
handlers = create_autospec(UserLookupSet, spec_set=True, instance=True)
idm = IDMapper(handlers, set(), storage)
storage.get_namespaces.return_value = set()
assert idm.get_namespaces() == (set(), set())
assert storage.get_namespaces.call_args_list == [((), {})]
def test_get_namespaces_only_private():
storage = create_autospec(IDMappingStorage, spec_set=True, instance=True)
handlers = create_autospec(UserLookupSet, spec_set=True, instance=True)
idm = IDMapper(handlers, set(), storage)
storage.get_namespaces.return_value = set([Namespace(NamespaceID('n3'), False),
Namespace(NamespaceID('n4'), False)])
assert idm.get_namespaces() == (set(), set([NamespaceID('n3'), NamespaceID('n4')]))
assert storage.get_namespaces.call_args_list == [((), {})]