def test_getConfiguration_returns_configuration_object(self):
service = ntp.RegionNetworkTimeProtocolService(reactor)
# Configure example time references.
ntp_servers = {factory.make_name("ntp-server") for _ in range(5)}
Config.objects.set_config("ntp_servers", " ".join(ntp_servers))
# Put all addresses in the same space so they're mutually routable.
space = factory.make_Space()
# Populate the database with "this" region and an example peer.
region, _, _ = make_region_with_address(space)
self.useFixture(MAASIDFixture(region.system_id))
peer, addr4, addr6 = make_region_with_address(space)
observed = service._getConfiguration()
self.assertThat(observed, IsInstance(ntp._Configuration))
expected_references = Equals(frozenset(ntp_servers))
expected_peers = AllMatch(ContainedBy({addr4.ip, addr6.ip}))
self.assertThat(
observed,
MatchesStructure(
references=expected_references, peers=expected_peers
),
)
def test_tryUpdate_logs_errors_from_broken_method(self):
service = ntp.RegionNetworkTimeProtocolService(reactor)
broken_method = self.patch_autospec(service, self.method)
broken_method.side_effect = factory.make_exception()
# Ensure that we never actually execute against systemd or write an
# actual configuration file.
self.patch_autospec(
ntp, "deferToThread"
).side_effect = always_succeed_with(None)
self.patch_autospec(service_monitor, "restartService")
with TwistedLoggerFixture() as logger:
yield service._tryUpdate()
self.assertThat(
logger.output,
DocTestMatches(
"""
Failed to update NTP configuration.
Traceback (most recent call last):
...
maastesting.factory.TestException#...
"""
),
)
def test__tryUpdate_updates_ntp_server(self):
service = ntp.RegionNetworkTimeProtocolService(reactor)
refs, peers = yield deferToDatabase(self.make_example_configuration)
configure_region = self.patch_autospec(ntp, "configure_region")
restartService = self.patch_autospec(service_monitor, "restartService")
yield service._tryUpdate()
self.assertThat(
configure_region,
MockCalledOnceWith(refs, Matches(AllMatch(ContainedBy(peers)))))
self.assertThat(restartService, MockCalledOnceWith("ntp_region"))
# If the configuration has not changed then a second call to
# `_tryUpdate` does not result in another call to `configure_region`.
yield service._tryUpdate()
self.assertThat(configure_region, MockCalledOnce())
self.assertThat(restartService, MockCalledOnceWith("ntp_region"))
def test_service_iterates_every_30_seconds(self):
service = ntp.RegionNetworkTimeProtocolService(reactor)
self.assertThat(service.step, Equals(30.0))
def test_service_uses__tryUpdate_as_periodic_function(self):
service = ntp.RegionNetworkTimeProtocolService(reactor)
self.assertThat(service.call, Equals((service._tryUpdate, (), {})))
def make_NetworkTimeProtocolService():
from maasserver.regiondservices import ntp
return ntp.RegionNetworkTimeProtocolService(reactor)
