def test_no_members(self):
def _get_group(group_name):
group = MagicMock()
if group_name == "group1":
group.nodes = ["node1", "node2", "node3"]
if group_name == "group2":
group.nodes = ["node4"]
if group_name == "group3":
group.nodes = ["node2", "node3"]
return group
r = Repository()
r.get_group = _get_group
self.assertEqual(
r.nodes_in_all_groups(["group1", "group2", "group3"]),
[],
)
