430 lines
14 KiB
Python
430 lines
14 KiB
Python
import sys
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import time
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import zlib
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import unittest2
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import testlib
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import mitogen.core
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import mitogen.master
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import mitogen.parent
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import mitogen.utils
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try:
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import Queue
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except ImportError:
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import queue as Queue
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def ping():
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return True
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@mitogen.core.takes_router
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def ping_context(other, router):
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other = mitogen.parent.Context(router, other.context_id)
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other.call(ping)
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@mitogen.core.takes_router
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def return_router_max_message_size(router):
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return router.max_message_size
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def send_n_sized_reply(sender, n):
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sender.send(' ' * n)
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return 123
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class SourceVerifyTest(testlib.RouterMixin, testlib.TestCase):
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def setUp(self):
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super(SourceVerifyTest, self).setUp()
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# Create some children, ping them, and store what their messages look
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# like so we can mess with them later.
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self.child1 = self.router.local()
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self.child1_msg = self.child1.call_async(ping).get()
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self.child1_stream = self.router._stream_by_id[self.child1.context_id]
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self.child2 = self.router.local()
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self.child2_msg = self.child2.call_async(ping).get()
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self.child2_stream = self.router._stream_by_id[self.child2.context_id]
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def test_bad_auth_id(self):
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# Deliver a message locally from child2, but using child1's stream.
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log = testlib.LogCapturer()
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log.start()
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# Used to ensure the message was dropped rather than routed after the
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# error is logged.
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recv = mitogen.core.Receiver(self.router)
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self.child2_msg.handle = recv.handle
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self.broker.defer(self.router._async_route,
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self.child2_msg,
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in_stream=self.child1_stream)
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# Wait for IO loop to finish everything above.
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self.sync_with_broker()
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# Ensure message wasn't forwarded.
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self.assertTrue(recv.empty())
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# Ensure error was logged.
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expect = 'bad auth_id: got %r via' % (self.child2_msg.auth_id,)
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self.assertTrue(expect in log.stop())
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def test_bad_src_id(self):
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# Deliver a message locally from child2 with the correct auth_id, but
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# the wrong src_id.
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log = testlib.LogCapturer()
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log.start()
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# Used to ensure the message was dropped rather than routed after the
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# error is logged.
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recv = mitogen.core.Receiver(self.router)
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self.child2_msg.handle = recv.handle
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self.child2_msg.src_id = self.child1.context_id
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self.broker.defer(self.router._async_route,
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self.child2_msg,
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self.child2_stream)
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# Wait for IO loop to finish everything above.
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self.sync_with_broker()
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# Ensure message wasn't forwarded.
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self.assertTrue(recv.empty())
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# Ensure error was lgoged.
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expect = 'bad src_id: got %d via' % (self.child1_msg.src_id,)
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self.assertTrue(expect in log.stop())
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class PolicyTest(testlib.RouterMixin, testlib.TestCase):
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def test_allow_any(self):
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# This guy gets everything.
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recv = mitogen.core.Receiver(self.router)
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recv.to_sender().send(123)
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self.sync_with_broker()
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self.assertFalse(recv.empty())
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self.assertEquals(123, recv.get().unpickle())
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def test_refuse_all(self):
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# Deliver a message locally from child2 with the correct auth_id, but
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# the wrong src_id.
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log = testlib.LogCapturer()
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log.start()
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# This guy never gets anything.
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recv = mitogen.core.Receiver(
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router=self.router,
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policy=(lambda msg, stream: False),
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)
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# This guy becomes the reply_to of our refused message.
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reply_target = mitogen.core.Receiver(self.router)
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# Send the message.
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self.router.route(
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mitogen.core.Message(
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dst_id=mitogen.context_id,
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handle=recv.handle,
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reply_to=reply_target.handle,
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)
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)
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# Wait for IO loop.
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self.sync_with_broker()
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# Verify log.
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self.assertTrue(self.router.refused_msg in log.stop())
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# Verify message was not delivered.
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self.assertTrue(recv.empty())
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# Verify CallError received by reply_to target.
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e = self.assertRaises(mitogen.core.ChannelError,
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lambda: reply_target.get().unpickle())
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self.assertEquals(e.args[0], self.router.refused_msg)
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class CrashTest(testlib.BrokerMixin, testlib.TestCase):
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# This is testing both Broker's ability to crash nicely, and Router's
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# ability to respond to the crash event.
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klass = mitogen.master.Router
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def _naughty(self):
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raise ValueError('eek')
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def test_shutdown(self):
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router = self.klass(self.broker)
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sem = mitogen.core.Latch()
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router.add_handler(sem.put)
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log = testlib.LogCapturer('mitogen')
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log.start()
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# Force a crash and ensure it wakes up.
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self.broker._loop_once = self._naughty
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self.broker.defer(lambda: None)
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# sem should have received dead message.
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self.assertTrue(sem.get().is_dead)
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# Ensure it was logged.
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expect = 'broker crashed'
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self.assertTrue(expect in log.stop())
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self.broker.join()
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class AddHandlerTest(testlib.TestCase):
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klass = mitogen.master.Router
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def test_dead_message_sent_at_shutdown(self):
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router = self.klass()
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queue = Queue.Queue()
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handle = router.add_handler(queue.put)
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router.broker.shutdown()
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self.assertTrue(queue.get(timeout=5).is_dead)
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router.broker.join()
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def test_cannot_double_register(self):
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router = self.klass()
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try:
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router.add_handler((lambda: None), handle=1234)
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e = self.assertRaises(mitogen.core.Error,
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lambda: router.add_handler((lambda: None), handle=1234))
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self.assertEquals(router.duplicate_handle_msg, e.args[0])
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router.del_handler(1234)
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finally:
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router.broker.shutdown()
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router.broker.join()
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def test_can_reregister(self):
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router = self.klass()
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try:
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router.add_handler((lambda: None), handle=1234)
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router.del_handler(1234)
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router.add_handler((lambda: None), handle=1234)
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router.del_handler(1234)
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finally:
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router.broker.shutdown()
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router.broker.join()
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class MyselfTest(testlib.RouterMixin, testlib.TestCase):
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def test_myself(self):
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myself = self.router.myself()
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self.assertEquals(myself.context_id, mitogen.context_id)
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# TODO: context should know its own name too.
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self.assertEquals(myself.name, 'self')
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class MessageSizeTest(testlib.BrokerMixin, testlib.TestCase):
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klass = mitogen.master.Router
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def test_local_exceeded(self):
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router = self.klass(broker=self.broker, max_message_size=4096)
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logs = testlib.LogCapturer()
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logs.start()
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# Send message and block for one IO loop, so _async_route can run.
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router.route(mitogen.core.Message.pickled(' '*8192))
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router.broker.defer_sync(lambda: None)
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expect = 'message too large (max 4096 bytes)'
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self.assertTrue(expect in logs.stop())
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def test_local_dead_message(self):
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# Local router should generate dead message when reply_to is set.
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router = self.klass(broker=self.broker, max_message_size=4096)
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logs = testlib.LogCapturer()
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logs.start()
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expect = router.too_large_msg % (4096,)
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# Try function call. Receiver should be woken by a dead message sent by
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# router due to message size exceeded.
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child = router.local()
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e = self.assertRaises(mitogen.core.ChannelError,
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lambda: child.call(zlib.crc32, ' '*8192))
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self.assertEquals(e.args[0], expect)
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self.assertTrue(expect in logs.stop())
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def test_remote_configured(self):
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router = self.klass(broker=self.broker, max_message_size=64*1024)
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remote = router.local()
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size = remote.call(return_router_max_message_size)
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self.assertEquals(size, 64*1024)
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def test_remote_of_remote_configured(self):
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router = self.klass(broker=self.broker, max_message_size=64*1024)
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remote = router.local()
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remote2 = router.local(via=remote)
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size = remote2.call(return_router_max_message_size)
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self.assertEquals(size, 64*1024)
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def test_remote_exceeded(self):
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# Ensure new contexts receive a router with the same value.
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router = self.klass(broker=self.broker, max_message_size=64*1024)
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recv = mitogen.core.Receiver(router)
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logs = testlib.LogCapturer()
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logs.start()
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remote = router.local()
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remote.call(send_n_sized_reply, recv.to_sender(), 128*1024)
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expect = 'message too large (max %d bytes)' % (64*1024,)
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self.assertTrue(expect in logs.stop())
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class NoRouteTest(testlib.RouterMixin, testlib.TestCase):
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def test_invalid_handle_returns_dead(self):
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# Verify sending a message to an invalid handle yields a dead message
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# from the target context.
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l1 = self.router.local()
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recv = l1.send_async(mitogen.core.Message(handle=999))
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msg = recv.get(throw_dead=False)
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self.assertEquals(msg.is_dead, True)
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self.assertEquals(msg.src_id, l1.context_id)
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self.assertEquals(msg.data, self.router.invalid_handle_msg.encode())
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recv = l1.send_async(mitogen.core.Message(handle=999))
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e = self.assertRaises(mitogen.core.ChannelError,
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lambda: recv.get())
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self.assertEquals(e.args[0], self.router.invalid_handle_msg)
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def test_totally_invalid_context_returns_dead(self):
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recv = mitogen.core.Receiver(self.router)
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msg = mitogen.core.Message(
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dst_id=1234,
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handle=1234,
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reply_to=recv.handle,
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)
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self.router.route(msg)
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rmsg = recv.get(throw_dead=False)
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self.assertEquals(rmsg.is_dead, True)
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self.assertEquals(rmsg.src_id, mitogen.context_id)
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self.assertEquals(rmsg.data, (self.router.no_route_msg % (
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1234,
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mitogen.context_id,
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)).encode())
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self.router.route(msg)
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e = self.assertRaises(mitogen.core.ChannelError,
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lambda: recv.get())
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self.assertEquals(e.args[0], (self.router.no_route_msg % (
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1234,
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mitogen.context_id,
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)))
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def test_previously_alive_context_returns_dead(self):
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l1 = self.router.local()
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l1.shutdown(wait=True)
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recv = mitogen.core.Receiver(self.router)
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msg = mitogen.core.Message(
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dst_id=l1.context_id,
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handle=mitogen.core.CALL_FUNCTION,
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reply_to=recv.handle,
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)
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self.router.route(msg)
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rmsg = recv.get(throw_dead=False)
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self.assertEquals(rmsg.is_dead, True)
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self.assertEquals(rmsg.src_id, mitogen.context_id)
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self.assertEquals(rmsg.data, (self.router.no_route_msg % (
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l1.context_id,
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mitogen.context_id,
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)).encode())
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self.router.route(msg)
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e = self.assertRaises(mitogen.core.ChannelError,
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lambda: recv.get())
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self.assertEquals(e.args[0], self.router.no_route_msg % (
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l1.context_id,
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mitogen.context_id,
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))
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def test_siblings_cant_talk(router):
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l1 = router.local()
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l2 = router.local()
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logs = testlib.LogCapturer()
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logs.start()
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try:
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l2.call(ping_context, l1)
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except mitogen.core.CallError:
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e = sys.exc_info()[1]
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msg = mitogen.core.Router.unidirectional_msg % (
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l2.context_id,
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l1.context_id,
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mitogen.context_id,
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)
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assert msg in str(e)
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assert 'routing mode prevents forward of ' in logs.stop()
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@mitogen.core.takes_econtext
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def test_siblings_cant_talk_remote(econtext):
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mitogen.parent.upgrade_router(econtext)
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test_siblings_cant_talk(econtext.router)
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class UnidirectionalTest(testlib.RouterMixin, testlib.TestCase):
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def test_siblings_cant_talk_master(self):
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self.router.unidirectional = True
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test_siblings_cant_talk(self.router)
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def test_siblings_cant_talk_parent(self):
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# ensure 'unidirectional' attribute is respected for contexts started
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# by children.
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self.router.unidirectional = True
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parent = self.router.local()
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parent.call(test_siblings_cant_talk_remote)
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def test_auth_id_can_talk(self):
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self.router.unidirectional = True
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# One stream has auth_id stamped to that of the master, so it should be
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# treated like a parent.
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l1 = self.router.local()
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l1s = self.router.stream_by_id(l1.context_id)
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l1s.protocol.auth_id = mitogen.context_id
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l1s.protocol.is_privileged = True
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l2 = self.router.local()
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e = self.assertRaises(mitogen.core.CallError,
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lambda: l2.call(ping_context, l1))
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msg = 'mitogen.core.ChannelError: %s' % (self.router.refused_msg,)
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self.assertTrue(str(e).startswith(msg))
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class EgressIdsTest(testlib.RouterMixin, testlib.TestCase):
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def test_egress_ids_populated(self):
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# Ensure Stream.egress_ids is populated on message reception.
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c1 = self.router.local(name='c1')
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c2 = self.router.local(name='c2')
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c1s = self.router.stream_by_id(c1.context_id)
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try:
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c1.call(ping_context, c2)
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except mitogen.core.CallError:
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# Fails because siblings cant call funcs in each other, but this
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# causes messages to be sent.
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pass
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self.assertEquals(c1s.protocol.egress_ids, set([
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mitogen.context_id,
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c2.context_id,
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]))
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if __name__ == '__main__':
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unittest2.main()
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