def test_updates_nodes_with_tag(self):
nodes = [factory.make_Node() for _ in range(5)]
for node in nodes[0:2]:
make_lldp_result(node, b"<bar/>")
tag = factory.make_Tag("bar", "//lldp:bar", populate=False)
populate_tag_for_multiple_nodes(tag, nodes)
self.assertItemsEqual(
[node.hostname for node in nodes[0:2]],
[node.hostname for node in Node.objects.filter(tags__name='bar')])
def _populate_nodes_now(self):
"""Find all nodes that match this tag, and update them, now.
All computation will be done within the current transaction, within
the current thread. This could be costly.
"""
# Avoid circular imports.
from maasserver.populate_tags import populate_tag_for_multiple_nodes
from maasserver.models.node import Node
if self.is_defined:
# Do the work here and now in this thread. This is probably a
# terrible mistake... unless you're testing.
populate_tag_for_multiple_nodes(self, Node.objects.all())