def test_dhcpHandler_adds_to_needsDHCPUpdate(self):
rack_id = random.randint(0, 100)
listener = PostgresListenerService()
service = RackControllerService(sentinel.ipcWorker, listener)
service.watching = set([rack_id])
mock_startProcessing = self.patch(service, "startProcessing")
service.dhcpHandler("sys_dhcp_%d" % rack_id, "")
self.assertEquals(set([rack_id]), service.needsDHCPUpdate)
self.assertThat(mock_startProcessing, MockCalledOnceWith())
def test_process_calls_processDHCP_for_rack_controller(self):
rack_id = random.randint(0, 100)
service = RackControllerService(sentinel.ipcWorker, sentinel.listener)
service.watching = set([rack_id])
service.needsDHCPUpdate = set([rack_id])
service.running = True
mock_processDHCP = self.patch(service, "processDHCP")
service.startProcessing()
yield service.processingDone
self.assertThat(mock_processDHCP, MockCalledOnceWith(rack_id))
def test_process_doesnt_call_processDHCP_when_nothing_to_process(self):
rack_id = random.randint(0, 100)
service = RackControllerService(sentinel.ipcWorker, sentinel.listener)
service.watching = set([rack_id])
service.needsDHCPUpdate = set()
service.running = True
mock_processDHCP = self.patch(service, "processDHCP")
service.startProcessing()
yield service.processingDone
self.assertThat(mock_processDHCP, MockNotCalled())
def test_process_calls_processDHCP_multiple_times(self):
rack_ids = [random.randint(0, 100) for _ in range(3)]
service = RackControllerService(sentinel.ipcWorker, sentinel.listener)
service.watching = set(rack_ids)
service.needsDHCPUpdate = set(rack_ids)
service.running = True
mock_processDHCP = self.patch(service, "processDHCP")
service.startProcessing()
for _ in range(len(rack_ids)):
yield service.processingDone
for rack_id in rack_ids:
self.assertThat(mock_processDHCP, MockAnyCall(rack_id))
def test_coreHandler_unwatch_calls_unregister(self):
processId = random.randint(0, 100)
rack_id = random.randint(0, 100)
listener = PostgresListenerService()
service = RackControllerService(sentinel.ipcWorker, listener)
service.processId = processId
service.watching = {rack_id}
service.needsDHCPUpdate = {rack_id}
listener.register(f"sys_dhcp_{rack_id}", service.dhcpHandler)
service.coreHandler("sys_core_%d" % processId, "unwatch_%d" % rack_id)
self.assertNotIn(f"sys_dhcp_{rack_id}", listener.listeners)
self.assertEquals(set(), service.watching)
self.assertEquals(set(), service.needsDHCPUpdate)
def test_coreHandler_watch_doesnt_call_register(self):
processId = random.randint(0, 100)
rack_id = random.randint(0, 100)
listener = Mock()
service = RackControllerService(sentinel.ipcWorker, listener)
service.processId = processId
service.watching = set([rack_id])
mock_startProcessing = self.patch(service, "startProcessing")
service.coreHandler("sys_core_%d" % processId, "watch_%d" % rack_id)
self.assertThat(listener.register, MockNotCalled())
self.assertEquals(set([rack_id]), service.watching)
self.assertEquals(set([rack_id]), service.needsDHCPUpdate)
self.assertThat(mock_startProcessing, MockCalledOnceWith())
def test_coreHandler_unwatch_calls_unregister(self):
processId = random.randint(0, 100)
rack_id = random.randint(0, 100)
listener = Mock()
service = RackControllerService(sentinel.ipcWorker, listener)
service.processId = processId
service.watching = {rack_id}
service.needsDHCPUpdate = {rack_id}
service.coreHandler("sys_core_%d" % processId, "unwatch_%d" % rack_id)
self.assertThat(
listener.unregister,
MockCalledOnceWith("sys_dhcp_%d" % rack_id, service.dhcpHandler))
self.assertEquals(set(), service.watching)
self.assertEquals(set(), service.needsDHCPUpdate)
def test_coreHandler_watch_doesnt_call_register(self):
processId = random.randint(0, 100)
rack_id = random.randint(0, 100)
listener = PostgresListenerService()
service = RackControllerService(sentinel.ipcWorker, listener)
service.processId = processId
service.watching = set([rack_id])
mock_startProcessing = self.patch(service, "startProcessing")
sys_channel = f"sys_core_{processId}"
service.coreHandler(sys_channel, "watch_%d" % rack_id)
self.assertNotIn(sys_channel, listener.listeners)
self.assertNotIn(sys_channel, listener.registeredChannels)
self.assertEquals(set([rack_id]), service.watching)
self.assertEquals(set([rack_id]), service.needsDHCPUpdate)
self.assertThat(mock_startProcessing, MockCalledOnceWith())
def test_stopService_calls_unregister_for_all_watching(self):
processId = random.randint(0, 100)
watching = {random.randint(0, 100) for _ in range(3)}
listener = Mock()
service = RackControllerService(sentinel.ipcWorker, listener)
service.processId = processId
service.watching = watching
yield service.stopService()
self.assertThat(
listener.unregister,
MockAnyCall("sys_core_%d" % processId, service.coreHandler))
for watch_id in watching:
self.assertThat(
listener.unregister,
MockAnyCall("sys_dhcp_%d" % watch_id, service.dhcpHandler))
def test_process_calls_processDHCP_multiple_times_on_failure(self):
rack_id = random.randint(0, 100)
service = RackControllerService(sentinel.ipcWorker, sentinel.listener)
service.watching = set([rack_id])
service.needsDHCPUpdate = set([rack_id])
service.running = True
mock_processDHCP = self.patch(service, "processDHCP")
mock_processDHCP.side_effect = [
fail(factory.make_exception()),
succeed(None),
]
service.startProcessing()
for _ in range(2):
yield service.processingDone
self.assertThat(mock_processDHCP,
MockCallsMatch(call(rack_id), call(rack_id)))
def test_stopService_calls_unregister_for_all_watching(self):
processId = random.randint(0, 100)
watching = {random.randint(0, 100) for _ in range(3)}
listener = PostgresListenerService()
service = RackControllerService(sentinel.ipcWorker, listener)
service.processId = processId
service.watching = watching
listener.register(f"sys_core_{processId}", service.coreHandler)
for watch_id in watching:
listener.register(f"sys_dhcp_{watch_id}", service.dhcpHandler)
yield service.stopService()
self.assertNotIn(f"sys_core_{processId}", listener.listeners)
for watch_id in watching:
self.assertNotIn(f"sys_dhcp_{watch_id}", listener.listeners)
