def test__tryUpdate_logs_errors_from_broken_method(self):
service = syslog.RegionSyslogService(reactor)
broken_method = self.patch_autospec(service, self.method)
broken_method.side_effect = factory.make_exception()
# Don't actually write the file.
self.patch_autospec(syslog, "write_config")
# Ensure that we never actually execute against systemd.
self.patch_autospec(service_monitor, "restartService")
with TwistedLoggerFixture() as logger:
yield service._tryUpdate()
self.assertThat(
logger.output,
DocTestMatches(
"""
Failed to update syslog configuration.
Traceback (most recent call last):
...
maastesting.factory.TestException#...
"""
),
)
def test__tryUpdate_updates_syslog_server(self):
service = syslog.RegionSyslogService(reactor)
port, peers = yield deferToDatabase(self.make_example_configuration)
write_config = self.patch_autospec(syslog, "write_config")
restartService = self.patch_autospec(service_monitor, "restartService")
yield service._tryUpdate()
self.assertThat(
write_config,
MockCalledOnceWith(
True,
Matches(
ContainsAll(
[
{
"ip": service._formatIP(ip),
"name": node.hostname,
}
for node, ip in peers
]
)
),
port=port,
),
)
self.assertThat(restartService, MockCalledOnceWith("syslog_region"))
# If the configuration has not changed then a second call to
# `_tryUpdate` does not result in another call to `write_config`.
yield service._tryUpdate()
self.assertThat(write_config, MockCalledOnce())
self.assertThat(restartService, MockCalledOnceWith("syslog_region"))
def test__getConfiguration_returns_configuration_object(self):
service = syslog.RegionSyslogService(reactor)
# Put all addresses in the same space so they're mutually routable.
space = factory.make_Space()
# Populate the database with "this" region rack and an example peer.
region_rack, _, _ = make_region_rack_with_address(space)
self.useFixture(MAASIDFixture(region_rack.system_id))
peer, addr4, addr6 = make_region_rack_with_address(space)
observed = service._getConfiguration()
self.assertThat(observed, IsInstance(syslog._Configuration))
expected_peers = AllMatch(Equals((peer.hostname, IPAddress(addr4.ip))))
self.assertThat(observed, MatchesStructure(peers=expected_peers))
def make_SyslogService():
from maasserver.regiondservices import syslog
return syslog.RegionSyslogService(reactor)
def test_service_iterates_every_30_seconds(self):
service = syslog.RegionSyslogService(reactor)
self.assertThat(service.step, Equals(30.0))
def test_service_uses__tryUpdate_as_periodic_function(self):
service = syslog.RegionSyslogService(reactor)
self.assertThat(service.call, Equals((service._tryUpdate, (), {})))
