class HeartbeatWriterTest(TwistedTestCase):
"""Tests for HeartbeatWriter."""
interval = 5
@defer.inlineCallbacks
def setUp(self):
yield super(HeartbeatWriterTest, self).setUp()
self.logger = logging.Logger("HeartbeatWriter.test")
self.handler = MementoHandler()
self.logger.addHandler(self.handler)
self.addCleanup(self.logger.removeHandler, self.handler)
self.clock = task.Clock()
self.hw = HeartbeatWriter(self.interval, self.logger,
reactor=self.clock)
def test_send_no_transport(self):
"""Log a warning when there is no transport."""
self.hw.send()
self.assertTrue(self.handler.check_warning(
"Can't send heartbeat without a transport"))
def test_send_loop(self):
"""Send heartbeats in the LoopingCall."""
# first connect to something
transport = StringIO()
self.clock.advance(2)
self.hw.makeConnection(transport)
self.clock.advance(5)
self.clock.advance(5)
# we should have 3 heartbeats in the transport, get them
raw_events = transport.getvalue().split(BEGIN_TOKEN, 3)
events = []
for raw_event in raw_events:
if raw_event:
events.append(json.loads(raw_event.strip(END_TOKEN)))
# strip the tokens
for i, timestamp in [(0, 2), (1, 7), (2, 12)]:
self.assertEqual(events[i]['type'], "heartbeat")
self.assertEqual(events[i]['time'], timestamp)
def test_send_on_connectionMade(self):
"""On connectionMade start the loop and send."""
# first connect to something
transport = StringIO()
self.clock.advance(0.1)
self.hw.makeConnection(transport)
self.assertTrue(self.hw.loop.running)
raw_event = transport.getvalue()
self.assertTrue(raw_event.startswith(BEGIN_TOKEN))
self.assertTrue(raw_event.endswith(END_TOKEN))
# strip the tokens
payload = json.loads(raw_event.strip(BEGIN_TOKEN).strip(END_TOKEN))
self.assertEqual(payload['type'], "heartbeat")
self.assertEqual(payload['time'], self.clock.seconds())
def test_connectionLost(self):
"""On connectionLost cleanup everything."""
self.hw.makeConnection(None)
called = []
self.patch(self.hw.loop, 'stop', lambda: called.append(True))
self.hw.connectionLost(protocol.connectionDone)
self.assertTrue(self.handler.check_info(
"HeartbeatWriter connectionLost: %s" % (protocol.connectionDone,)))
self.assertTrue(called)
self.assertEqual(self.hw.loop, None)
self.assertEqual(self.hw.reactor, None)
self.assertEqual(self.hw.logger, None)
class HeartbeatWriterTest(TwistedTestCase):
"""Tests for HeartbeatWriter."""
interval = 5
@defer.inlineCallbacks
def setUp(self):
yield super(HeartbeatWriterTest, self).setUp()
self.logger = logging.Logger("HeartbeatWriter.test")
self.handler = MementoHandler()
self.logger.addHandler(self.handler)
self.addCleanup(self.logger.removeHandler, self.handler)
self.clock = task.Clock()
self.hw = HeartbeatWriter(self.interval,
self.logger,
reactor=self.clock)
def test_send_no_transport(self):
"""Log a warning when there is no transport."""
self.hw.send()
self.assertTrue(
self.handler.check_warning(
"Can't send heartbeat without a transport"))
def test_send_loop(self):
"""Send heartbeats in the LoopingCall."""
# first connect to something
transport = StringIO()
self.clock.advance(2)
self.hw.makeConnection(transport)
self.clock.advance(5)
self.clock.advance(5)
# we should have 3 heartbeats in the transport, get them
raw_events = transport.getvalue().split(BEGIN_TOKEN, 3)
events = []
for raw_event in raw_events:
if raw_event:
events.append(json.loads(raw_event.strip(END_TOKEN)))
# strip the tokens
for i, timestamp in [(0, 2), (1, 7), (2, 12)]:
self.assertEqual(events[i]['type'], "heartbeat")
self.assertEqual(events[i]['time'], timestamp)
def test_send_on_connectionMade(self):
"""On connectionMade start the loop and send."""
# first connect to something
transport = StringIO()
self.clock.advance(0.1)
self.hw.makeConnection(transport)
self.assertTrue(self.hw.loop.running)
raw_event = transport.getvalue()
self.assertTrue(raw_event.startswith(BEGIN_TOKEN))
self.assertTrue(raw_event.endswith(END_TOKEN))
# strip the tokens
payload = json.loads(raw_event.strip(BEGIN_TOKEN).strip(END_TOKEN))
self.assertEqual(payload['type'], "heartbeat")
self.assertEqual(payload['time'], self.clock.seconds())
def test_connectionLost(self):
"""On connectionLost cleanup everything."""
self.hw.makeConnection(None)
called = []
self.patch(self.hw.loop, 'stop', lambda: called.append(True))
self.hw.connectionLost(protocol.connectionDone)
self.assertTrue(
self.handler.check_info("HeartbeatWriter connectionLost: %s" %
(protocol.connectionDone, )))
self.assertTrue(called)
self.assertEqual(self.hw.loop, None)
self.assertEqual(self.hw.reactor, None)
self.assertEqual(self.hw.logger, None)