def test_report_power_state_changes_power_state_if_failure(self):
system_id = factory.make_name("system_id")
hostname = factory.make_name("hostname")
err_msg = factory.make_name("error")
_, _, io = self.patch_rpc_methods()
self.patch_autospec(power, "power_state_update")
# Simulate a failure when querying state.
query = fail(exceptions.PowerActionFail(err_msg))
report = power.report_power_state(query, system_id, hostname)
# This blocks until the deferred is complete.
io.flush()
error = self.assertRaises(exceptions.PowerActionFail, extract_result,
report)
self.assertEqual(err_msg, str(error))
self.assertThat(power.power_state_update,
MockCalledOnceWith(system_id, "error"))
def test_query_all_nodes_swallows_PowerActionFail(self):
node1, node2 = self.make_nodes(2)
new_state_2 = self.pick_alternate_state(node2['power_state'])
get_power_state = self.patch(power, 'get_power_state')
error_msg = factory.make_name("error")
get_power_state.side_effect = [
fail(exceptions.PowerActionFail(error_msg)),
succeed(new_state_2),
]
suppress_reporting(self)
with FakeLogger("maas.power", level=logging.DEBUG) as maaslog:
yield power.query_all_nodes([node1, node2])
self.assertDocTestMatches(
"""\
hostname-...: Could not query power state: %s.
hostname-...: Power state has changed from ... to ...
""" % error_msg, maaslog.output)