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import sys
import threading
import types
import zlib
import unittest
try:
from unittest import mock
except ImportError:
import mock
import mitogen.core
import mitogen.utils
from mitogen.core import b
import testlib
import simple_pkg.imports_replaces_self
class ImporterMixin(testlib.RouterMixin):
modname = None
def setUp(self):
super(ImporterMixin, self).setUp()
self.context = mock.Mock()
self.importer = mitogen.core.Importer(self.router, self.context, '')
# TODO: this is a horrendous hack. Without it, we can't deliver a
# response to find_module() via _on_load_module() since find_module()
# is still holding the lock. The tests need a nicer abstraction for
# soemthing like "fake participant" that lets us have a mock master
# that respects the execution model expected by the code -- probably
# (grmph) including multiplexer thread and all.
self.importer._lock = threading.RLock()
def set_get_module_response(self, resp):
def on_context_send(msg):
self.context_send_msg = msg
self.importer._on_load_module(
mitogen.core.Message.pickled(resp)
)
self.context.send = on_context_send
def tearDown(self):
sys.modules.pop(self.modname, None)
super(ImporterMixin, self).tearDown()
class InvalidNameTest(ImporterMixin, testlib.TestCase):
modname = 'trailingdot.'
# 0:fullname 1:pkg_present 2:path 3:compressed 4:related
response = (modname, None, None, None, None)
@unittest.skipIf(sys.version_info < (3, 4), 'Requires ModuleSpec, Python 3.4+')
def test_find_spec_invalid(self):
self.set_get_module_response(self.response)
self.assertEqual(self.importer.find_spec(self.modname, path=None), None)
class MissingModuleTest(ImporterMixin, testlib.TestCase):
modname = 'missing'
# 0:fullname 1:pkg_present 2:path 3:compressed 4:related
response = (modname, None, None, None, None)
@unittest.skipIf(sys.version_info >= (3, 4), 'Superceded in Python 3.4+')
def test_load_module_missing(self):
self.set_get_module_response(self.response)
self.assertRaises(ImportError, self.importer.load_module, self.modname)
@unittest.skipIf(sys.version_info < (3, 4), 'Requires ModuleSpec, Python 3.4+')
def test_find_spec_missing(self):
"""
Importer should optimistically offer itself as a module loader
when there are no disqualifying criteria.
"""
import importlib.machinery
self.set_get_module_response(self.response)
spec = self.importer.find_spec(self.modname, path=None)
self.assertIsInstance(spec, importlib.machinery.ModuleSpec)
self.assertEqual(spec.name, self.modname)
self.assertEqual(spec.loader, self.importer)
@unittest.skipIf(sys.version_info < (3, 4), 'Requires ModuleSpec, Python 3.4+')
def test_create_module_missing(self):
import importlib.machinery
self.set_get_module_response(self.response)
spec = importlib.machinery.ModuleSpec(self.modname, self.importer)
self.assertRaises(ImportError, self.importer.create_module, spec)
@unittest.skipIf(sys.version_info >= (3, 4), 'Superceded in Python 3.4+')
class LoadModuleTest(ImporterMixin, testlib.TestCase):
data = zlib.compress(b("data = 1\n\n"))
path = 'fake_module.py'
modname = 'fake_module'
# 0:fullname 1:pkg_present 2:path 3:compressed 4:related
response = (modname, None, path, data, [])
def test_module_added_to_sys_modules(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertIs(sys.modules[self.modname], mod)
self.assertIsInstance(mod, types.ModuleType)
def test_module_file_set(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertEqual(mod.__file__, 'master:' + self.path)
def test_module_loader_set(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertIs(mod.__loader__, self.importer)
def test_module_package_unset(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertIsNone(mod.__package__)
@unittest.skipIf(sys.version_info < (3, 4), 'Requires ModuleSpec, Python 3.4+')
class ModuleSpecTest(ImporterMixin, testlib.TestCase):
data = zlib.compress(b("data = 1\n\n"))
path = 'fake_module.py'
modname = 'fake_module'
# 0:fullname 1:pkg_present 2:path 3:compressed 4:related
response = (modname, None, path, data, [])
def test_module_attributes(self):
import importlib.machinery
self.set_get_module_response(self.response)
spec = importlib.machinery.ModuleSpec(self.modname, self.importer)
mod = self.importer.create_module(spec)
self.assertIsInstance(mod, types.ModuleType)
self.assertEqual(mod.__name__, 'fake_module')
#self.assertFalse(hasattr(mod, '__file__'))
@unittest.skipIf(sys.version_info >= (3, 4), 'Superceded in Python 3.4+')
class LoadSubmoduleTest(ImporterMixin, testlib.TestCase):
data = zlib.compress(b("data = 1\n\n"))
path = 'fake_module.py'
modname = 'mypkg.fake_module'
# 0:fullname 1:pkg_present 2:path 3:compressed 4:related
response = (modname, None, path, data, [])
def test_module_package_unset(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertEqual(mod.__package__, 'mypkg')
@unittest.skipIf(sys.version_info < (3, 4), 'Requires ModuleSpec, Python 3.4+')
class SubmoduleSpecTest(ImporterMixin, testlib.TestCase):
data = zlib.compress(b("data = 1\n\n"))
path = 'fake_module.py'
modname = 'mypkg.fake_module'
# 0:fullname 1:pkg_present 2:path 3:compressed 4:related
response = (modname, None, path, data, [])
def test_module_attributes(self):
import importlib.machinery
self.set_get_module_response(self.response)
spec = importlib.machinery.ModuleSpec(self.modname, self.importer)
mod = self.importer.create_module(spec)
self.assertIsInstance(mod, types.ModuleType)
self.assertEqual(mod.__name__, 'mypkg.fake_module')
#self.assertFalse(hasattr(mod, '__file__'))
@unittest.skipIf(sys.version_info >= (3, 4), 'Superceded in Python 3.4+')
class LoadModulePackageTest(ImporterMixin, testlib.TestCase):
data = zlib.compress(b("func = lambda: 1\n\n"))
path = 'fake_pkg/__init__.py'
modname = 'fake_pkg'
# 0:fullname 1:pkg_present 2:path 3:compressed 4:related
response = (modname, [], path, data, [])
def test_module_file_set(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertEqual(mod.__file__, 'master:' + self.path)
def test_get_filename(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
filename = mod.__loader__.get_filename(self.modname)
self.assertEqual('master:fake_pkg/__init__.py', filename)
def test_get_source(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
source = mod.__loader__.get_source(self.modname)
self.assertEqual(source,
mitogen.core.to_text(zlib.decompress(self.data)))
def test_module_loader_set(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertIs(mod.__loader__, self.importer)
def test_module_path_present(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertEqual(mod.__path__, [])
def test_module_package_set(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertEqual(mod.__package__, self.modname)
def test_module_data(self):
self.set_get_module_response(self.response)
mod = self.importer.load_module(self.modname)
self.assertIsInstance(mod.func, types.FunctionType)
self.assertEqual(mod.func.__module__, self.modname)
@unittest.skipIf(sys.version_info < (3, 4), 'Requires ModuleSpec, Python 3.4+')
class PackageSpecTest(ImporterMixin, testlib.TestCase):
data = zlib.compress(b("func = lambda: 1\n\n"))
path = 'fake_pkg/__init__.py'
modname = 'fake_pkg'
# 0:fullname 1:pkg_present 2:path 3:compressed 4:related
response = (modname, [], path, data, [])
def test_module_attributes(self):
import importlib.machinery
self.set_get_module_response(self.response)
spec = importlib.machinery.ModuleSpec(self.modname, self.importer)
mod = self.importer.create_module(spec)
self.assertIsInstance(mod, types.ModuleType)
self.assertEqual(mod.__name__, 'fake_pkg')
#self.assertFalse(hasattr(mod, '__file__'))
def test_get_filename(self):
import importlib.machinery
self.set_get_module_response(self.response)
spec = importlib.machinery.ModuleSpec(self.modname, self.importer)
_ = self.importer.create_module(spec)
filename = self.importer.get_filename(self.modname)
self.assertEqual('master:fake_pkg/__init__.py', filename)
def test_get_source(self):
import importlib.machinery
self.set_get_module_response(self.response)
spec = importlib.machinery.ModuleSpec(self.modname, self.importer)
_ = self.importer.create_module(spec)
source = self.importer.get_source(self.modname)
self.assertEqual(source,
mitogen.core.to_text(zlib.decompress(self.data)))
class EmailParseAddrSysTest(testlib.RouterMixin, testlib.TestCase):
def initdir(self, caplog):
self.caplog = caplog
def test_sys_module_not_fetched(self):
# An old version of core.Importer would request the email.sys module
# while executing email.utils.parseaddr(). Ensure this needless
# roundtrip has not reappeared.
pass
class ImporterBlacklistTest(testlib.TestCase):
def test_is_blacklisted_import_default(self):
importer = mitogen.core.Importer(
router=mock.Mock(), context=None, core_src='',
)
self.assertIsInstance(importer.whitelist, list)
self.assertIsInstance(importer.blacklist, list)
self.assertFalse(mitogen.core.is_blacklisted_import(importer, 'mypkg'))
self.assertFalse(mitogen.core.is_blacklisted_import(importer, 'mypkg.mod'))
self.assertFalse(mitogen.core.is_blacklisted_import(importer, 'otherpkg'))
self.assertFalse(mitogen.core.is_blacklisted_import(importer, 'otherpkg.mod'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, '__builtin__'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'builtins'))
def test_is_blacklisted_import_just_whitelist(self):
importer = mitogen.core.Importer(
router=mock.Mock(), context=None, core_src='',
whitelist=('mypkg',),
)
self.assertIsInstance(importer.whitelist, list)
self.assertIsInstance(importer.blacklist, list)
self.assertFalse(mitogen.core.is_blacklisted_import(importer, 'mypkg'))
self.assertFalse(mitogen.core.is_blacklisted_import(importer, 'mypkg.mod'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'otherpkg'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'otherpkg.mod'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, '__builtin__'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'builtins'))
def test_is_blacklisted_import_just_blacklist(self):
importer = mitogen.core.Importer(
router=mock.Mock(), context=None, core_src='',
blacklist=('mypkg',),
)
self.assertIsInstance(importer.whitelist, list)
self.assertIsInstance(importer.blacklist, list)
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'mypkg'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'mypkg.mod'))
self.assertFalse(mitogen.core.is_blacklisted_import(importer, 'otherpkg'))
self.assertFalse(mitogen.core.is_blacklisted_import(importer, 'otherpkg.mod'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, '__builtin__'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'builtins'))
def test_is_blacklisted_import_whitelist_and_blacklist(self):
importer = mitogen.core.Importer(
router=mock.Mock(), context=None, core_src='',
whitelist=('mypkg',), blacklist=('mypkg',),
)
self.assertIsInstance(importer.whitelist, list)
self.assertIsInstance(importer.blacklist, list)
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'mypkg'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'mypkg.mod'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'otherpkg'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'otherpkg.mod'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, '__builtin__'))
self.assertTrue(mitogen.core.is_blacklisted_import(importer, 'builtins'))
class Python24LineCacheTest(testlib.TestCase):
# TODO: mitogen.core.Importer._update_linecache()
pass
class SelfReplacingModuleTest(testlib.RouterMixin, testlib.TestCase):
# issue #590
def test_importer_handles_self_replacement(self):
c = self.router.local()
self.assertEqual(0,
c.call(simple_pkg.imports_replaces_self.subtract_one, 1))
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