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mitogen/tests/call_function_test.py

92 lines
2.6 KiB
Python

import logging
import time
import unittest
import mitogen.core
import mitogen.master
import testlib
class CrazyType(object):
pass
def function_that_adds_numbers(x, y):
return x + y
def function_that_fails():
raise ValueError('exception text')
def func_with_bad_return_value():
return CrazyType()
def func_returns_dead():
return mitogen.core._DEAD
def func_accepts_returns_context(context):
return context
class CallFunctionTest(testlib.RouterMixin, testlib.TestCase):
def setUp(self):
super(CallFunctionTest, self).setUp()
self.local = self.router.local()
def test_succeeds(self):
assert 3 == self.local.call(function_that_adds_numbers, 1, 2)
def test_crashes(self):
exc = self.assertRaises(mitogen.core.CallError,
lambda: self.local.call(function_that_fails))
s = str(exc)
etype, _, s = s.partition(': ')
assert etype == 'exceptions.ValueError'
msg, _, s = s.partition('\n')
assert msg == 'exception text'
# Traceback
assert len(s) > 0
def test_bad_return_value(self):
exc = self.assertRaises(mitogen.core.StreamError,
lambda: self.local.call(func_with_bad_return_value))
self.assertEquals(exc[0], "cannot unpickle '__main__'/'CrazyType'")
def test_returns_dead(self):
assert mitogen.core._DEAD == self.local.call(func_returns_dead)
def test_aborted_on_local_context_disconnect(self):
stream = self.router._stream_by_id[self.local.context_id]
self.broker.stop_receive(stream)
recv = self.local.call_async(time.sleep, 120)
self.broker.defer(stream.on_disconnect, self.broker)
exc = self.assertRaises(mitogen.core.ChannelError,
lambda: recv.get())
self.assertEquals(exc[0], mitogen.core.ChannelError.local_msg)
def test_aborted_on_local_broker_shutdown(self):
stream = self.router._stream_by_id[self.local.context_id]
recv = self.local.call_async(time.sleep, 120)
time.sleep(0.1) # Ensure GIL is released
self.broker.shutdown()
exc = self.assertRaises(mitogen.core.ChannelError,
lambda: recv.get())
self.assertEquals(exc[0], mitogen.core.ChannelError.local_msg)
def test_accepts_returns_context(self):
context = self.local.call(func_accepts_returns_context, self.local)
assert context is not self.local
assert context.context_id == self.local.context_id
assert context.name == self.local.name
if __name__ == '__main__':
unittest.main()