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import textwrap
import subprocess
import sys
import unittest
try:
from unittest import mock
except ImportError:
import mock
import mitogen.master
import testlib
import plain_old_module
import simple_pkg.a
class NeutralizeMainTest(testlib.RouterMixin, testlib.TestCase):
klass = mitogen.master.ModuleResponder
def call(self, *args, **kwargs):
router = mock.Mock()
return self.klass(router).neutralize_main(*args, **kwargs)
def test_missing_exec_guard(self):
path = testlib.data_path('main_with_no_exec_guard.py')
args = [sys.executable, path]
proc = subprocess.Popen(args, stderr=subprocess.PIPE)
_, stderr = proc.communicate()
self.assertEqual(1, proc.returncode)
expect = self.klass.main_guard_msg % (path,)
self.assertIn(expect, stderr.decode())
HAS_MITOGEN_MAIN = mitogen.core.b(
textwrap.dedent("""
herp derp
def myprog():
pass
@mitogen.main(maybe_some_option=True)
def main(router):
pass
""")
)
def test_mitogen_main(self):
untouched = self.call("derp.py", self.HAS_MITOGEN_MAIN)
self.assertEqual(untouched, self.HAS_MITOGEN_MAIN)
HAS_EXEC_GUARD = mitogen.core.b(
textwrap.dedent("""
herp derp
def myprog():
pass
def main():
pass
if __name__ == '__main__':
main()
""")
)
def test_exec_guard(self):
touched = self.call("derp.py", self.HAS_EXEC_GUARD)
bits = touched.decode().split()
self.assertEqual(bits[-3:], ['def', 'main():', 'pass'])
class GoodModulesTest(testlib.RouterMixin, testlib.TestCase):
def test_plain_old_module(self):
# The simplest case: a top-level module with no interesting imports or
# package machinery damage.
context = self.router.local()
self.assertEqual(256, context.call(plain_old_module.pow, 2, 8))
os_fork = int(sys.version_info < (2, 6)) # mitogen.os_fork
self.assertEqual(1+os_fork, self.router.responder.get_module_count)
self.assertEqual(1+os_fork, self.router.responder.good_load_module_count)
self.assertLess(300, self.router.responder.good_load_module_size)
def test_simple_pkg(self):
# Ensure success of a simple package containing two submodules, one of
# which imports the other.
context = self.router.local()
self.assertEqual(3,
context.call(simple_pkg.a.subtract_one_add_two, 2))
os_fork = int(sys.version_info < (2, 6)) # mitogen.os_fork
self.assertEqual(2+os_fork, self.router.responder.get_module_count)
self.assertEqual(3+os_fork, self.router.responder.good_load_module_count)
self.assertEqual(0, self.router.responder.bad_load_module_count)
self.assertLess(450, self.router.responder.good_load_module_size)
def test_self_contained_program(self):
# Ensure a program composed of a single script can be imported
# successfully.
args = [sys.executable, testlib.data_path('self_contained_program.py')]
proc = subprocess.Popen(args, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
b_stdout, _ = proc.communicate()
self.assertEqual(proc.returncode, 0)
self.assertEqual(b_stdout.decode(), "['__main__', 50]\n")
class BrokenModulesTest(testlib.TestCase):
def test_obviously_missing(self):
# Ensure we don't crash in the case of a module legitimately being
# unavailable. Should never happen in the real world.
stream = mock.Mock()
stream.protocol.sent_modules = set()
router = mock.Mock()
router.stream_by_id = lambda n: stream
msg = mitogen.core.Message(
data=mitogen.core.b('non_existent_module'),
reply_to=50,
)
msg.router = router
responder = mitogen.master.ModuleResponder(router)
responder._on_get_module(msg)
self.assertEqual(1, len(router._async_route.mock_calls))
self.assertEqual(1, responder.get_module_count)
self.assertEqual(0, responder.good_load_module_count)
self.assertEqual(0, responder.good_load_module_size)
self.assertEqual(1, responder.bad_load_module_count)
call = router._async_route.mock_calls[0]
msg, = call[1]
self.assertEqual(mitogen.core.LOAD_MODULE, msg.handle)
self.assertEqual(('non_existent_module', None, None, None, ()),
msg.unpickle())
@unittest.skipIf(
condition=sys.version_info < (2, 6),
reason='Ancient Python lacked "from . import foo"',
)
def test_ansible_six_messed_up_path(self):
# The copy of six.py shipped with Ansible appears in a package whose
# __path__ subsequently ends up empty, which prevents pkgutil from
# finding its submodules. After ansible.compat.six is initialized in
# the parent, attempts to execute six/__init__.py on the slave will
# cause an attempt to request ansible.compat.six._six from the master.
import six_brokenpkg
stream = mock.Mock()
stream.protocol.sent_modules = set()
router = mock.Mock()
router.stream_by_id = lambda n: stream
msg = mitogen.core.Message(
data=mitogen.core.b('six_brokenpkg._six'),
reply_to=50,
)
msg.router = router
responder = mitogen.master.ModuleResponder(router)
responder._on_get_module(msg)
self.assertEqual(1, len(router._async_route.mock_calls))
self.assertEqual(1, responder.get_module_count)
self.assertEqual(1, responder.good_load_module_count)
self.assertEqual(0, responder.bad_load_module_count)
call = router._async_route.mock_calls[0]
msg, = call[1]
self.assertEqual(mitogen.core.LOAD_MODULE, msg.handle)
tup = msg.unpickle()
self.assertIsInstance(tup, tuple)
class ForwardTest(testlib.RouterMixin, testlib.TestCase):
@unittest.skip('Fails on Debian')
def test_forward_to_nonexistent_context(self):
nonexistent = mitogen.core.Context(self.router, 123)
capture = testlib.LogCapturer()
capture.start()
self.broker.defer_sync(lambda:
self.router.responder.forward_modules(
nonexistent,
['mitogen.core']
)
)
s = capture.stop()
self.assertIn('dropping forward of', s)
def test_stats(self):
# Forwarding stats broken because forwarding is broken. See #469.
c1 = self.router.local()
c2 = self.router.local(via=c1)
os_fork = int(sys.version_info < (2, 6))
self.assertEqual(256, c2.call(plain_old_module.pow, 2, 8))
self.assertEqual(2+os_fork, self.router.responder.get_module_count)
self.assertEqual(2+os_fork, self.router.responder.good_load_module_count)
self.assertLess(10000, self.router.responder.good_load_module_size)
self.assertGreater(40000, self.router.responder.good_load_module_size)
class BlacklistTest(testlib.TestCase):
@unittest.skip('implement me')
def test_whitelist_no_blacklist(self):
assert 0
@unittest.skip('implement me')
def test_whitelist_has_blacklist(self):
assert 0
@unittest.skip('implement me')
def test_blacklist_no_whitelist(self):
assert 0
@unittest.skip('implement me')
def test_blacklist_has_whitelist(self):
assert 0
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