mirror of
https://github.com/python/cpython.git
synced 2025-07-24 19:54:21 +00:00
deeaac49e2
- Add requires_fork and requires_subprocess to more tests - Skip extension import tests if dlopen is not available - Don't assume that _testcapi is a shared extension - Skip a lot of socket tests that don't work on Emscripten - Skip mmap tests, mmap emulation is incomplete - venv does not work yet - Cannot get libc from executable The "entire" test suite is now passing on Emscripten with EMSDK from git head (91 suites are skipped).
288 lines
11 KiB
Python
288 lines
11 KiB
Python
from warnings import catch_warnings
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from test.test_importlib import abc, util
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machinery = util.import_importlib('importlib.machinery')
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import os.path
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import sys
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import types
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import unittest
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import warnings
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import importlib.util
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import importlib
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from test.support.script_helper import assert_python_failure
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class LoaderTests(abc.LoaderTests):
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"""Test load_module() for extension modules."""
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def setUp(self):
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if not self.machinery.EXTENSION_SUFFIXES:
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raise unittest.SkipTest("Requires dynamic loading support.")
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self.loader = self.machinery.ExtensionFileLoader(util.EXTENSIONS.name,
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util.EXTENSIONS.file_path)
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def load_module(self, fullname):
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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return self.loader.load_module(fullname)
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def test_load_module_API(self):
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# Test the default argument for load_module().
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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self.loader.load_module()
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self.loader.load_module(None)
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with self.assertRaises(ImportError):
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self.load_module('XXX')
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def test_equality(self):
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other = self.machinery.ExtensionFileLoader(util.EXTENSIONS.name,
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util.EXTENSIONS.file_path)
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self.assertEqual(self.loader, other)
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def test_inequality(self):
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other = self.machinery.ExtensionFileLoader('_' + util.EXTENSIONS.name,
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util.EXTENSIONS.file_path)
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self.assertNotEqual(self.loader, other)
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def test_module(self):
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with util.uncache(util.EXTENSIONS.name):
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module = self.load_module(util.EXTENSIONS.name)
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for attr, value in [('__name__', util.EXTENSIONS.name),
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('__file__', util.EXTENSIONS.file_path),
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('__package__', '')]:
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self.assertEqual(getattr(module, attr), value)
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self.assertIn(util.EXTENSIONS.name, sys.modules)
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self.assertIsInstance(module.__loader__,
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self.machinery.ExtensionFileLoader)
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# No extension module as __init__ available for testing.
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test_package = None
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# No extension module in a package available for testing.
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test_lacking_parent = None
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def test_module_reuse(self):
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with util.uncache(util.EXTENSIONS.name):
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module1 = self.load_module(util.EXTENSIONS.name)
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module2 = self.load_module(util.EXTENSIONS.name)
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self.assertIs(module1, module2)
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# No easy way to trigger a failure after a successful import.
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test_state_after_failure = None
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def test_unloadable(self):
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name = 'asdfjkl;'
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with self.assertRaises(ImportError) as cm:
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self.load_module(name)
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self.assertEqual(cm.exception.name, name)
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def test_is_package(self):
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self.assertFalse(self.loader.is_package(util.EXTENSIONS.name))
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for suffix in self.machinery.EXTENSION_SUFFIXES:
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path = os.path.join('some', 'path', 'pkg', '__init__' + suffix)
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loader = self.machinery.ExtensionFileLoader('pkg', path)
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self.assertTrue(loader.is_package('pkg'))
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(Frozen_LoaderTests,
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Source_LoaderTests
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) = util.test_both(LoaderTests, machinery=machinery)
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class MultiPhaseExtensionModuleTests(abc.LoaderTests):
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# Test loading extension modules with multi-phase initialization (PEP 489).
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def setUp(self):
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if not self.machinery.EXTENSION_SUFFIXES:
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raise unittest.SkipTest("Requires dynamic loading support.")
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self.name = '_testmultiphase'
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finder = self.machinery.FileFinder(None)
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self.spec = importlib.util.find_spec(self.name)
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assert self.spec
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self.loader = self.machinery.ExtensionFileLoader(
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self.name, self.spec.origin)
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def load_module(self):
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# Load the module from the test extension.
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with warnings.catch_warnings():
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warnings.simplefilter("ignore", DeprecationWarning)
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return self.loader.load_module(self.name)
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def load_module_by_name(self, fullname):
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# Load a module from the test extension by name.
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origin = self.spec.origin
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loader = self.machinery.ExtensionFileLoader(fullname, origin)
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spec = importlib.util.spec_from_loader(fullname, loader)
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module = importlib.util.module_from_spec(spec)
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loader.exec_module(module)
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return module
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# No extension module as __init__ available for testing.
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test_package = None
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# No extension module in a package available for testing.
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test_lacking_parent = None
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# Handling failure on reload is the up to the module.
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test_state_after_failure = None
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def test_module(self):
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# Test loading an extension module.
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with util.uncache(self.name):
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module = self.load_module()
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for attr, value in [('__name__', self.name),
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('__file__', self.spec.origin),
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('__package__', '')]:
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self.assertEqual(getattr(module, attr), value)
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with self.assertRaises(AttributeError):
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module.__path__
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self.assertIs(module, sys.modules[self.name])
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self.assertIsInstance(module.__loader__,
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self.machinery.ExtensionFileLoader)
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def test_functionality(self):
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# Test basic functionality of stuff defined in an extension module.
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with util.uncache(self.name):
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module = self.load_module()
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self.assertIsInstance(module, types.ModuleType)
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ex = module.Example()
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self.assertEqual(ex.demo('abcd'), 'abcd')
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self.assertEqual(ex.demo(), None)
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with self.assertRaises(AttributeError):
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ex.abc
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ex.abc = 0
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self.assertEqual(ex.abc, 0)
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self.assertEqual(module.foo(9, 9), 18)
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self.assertIsInstance(module.Str(), str)
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self.assertEqual(module.Str(1) + '23', '123')
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with self.assertRaises(module.error):
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raise module.error()
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self.assertEqual(module.int_const, 1969)
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self.assertEqual(module.str_const, 'something different')
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def test_reload(self):
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# Test that reload didn't re-set the module's attributes.
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with util.uncache(self.name):
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module = self.load_module()
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ex_class = module.Example
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importlib.reload(module)
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self.assertIs(ex_class, module.Example)
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def test_try_registration(self):
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# Assert that the PyState_{Find,Add,Remove}Module C API doesn't work.
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module = self.load_module()
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with self.subTest('PyState_FindModule'):
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self.assertEqual(module.call_state_registration_func(0), None)
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with self.subTest('PyState_AddModule'):
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with self.assertRaises(SystemError):
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module.call_state_registration_func(1)
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with self.subTest('PyState_RemoveModule'):
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with self.assertRaises(SystemError):
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module.call_state_registration_func(2)
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def test_load_submodule(self):
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# Test loading a simulated submodule.
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module = self.load_module_by_name('pkg.' + self.name)
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self.assertIsInstance(module, types.ModuleType)
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self.assertEqual(module.__name__, 'pkg.' + self.name)
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self.assertEqual(module.str_const, 'something different')
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def test_load_short_name(self):
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# Test loading module with a one-character name.
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module = self.load_module_by_name('x')
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self.assertIsInstance(module, types.ModuleType)
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self.assertEqual(module.__name__, 'x')
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self.assertEqual(module.str_const, 'something different')
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self.assertNotIn('x', sys.modules)
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def test_load_twice(self):
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# Test that 2 loads result in 2 module objects.
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module1 = self.load_module_by_name(self.name)
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module2 = self.load_module_by_name(self.name)
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self.assertIsNot(module1, module2)
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def test_unloadable(self):
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# Test nonexistent module.
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name = 'asdfjkl;'
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with self.assertRaises(ImportError) as cm:
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self.load_module_by_name(name)
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self.assertEqual(cm.exception.name, name)
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def test_unloadable_nonascii(self):
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# Test behavior with nonexistent module with non-ASCII name.
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name = 'fo\xf3'
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with self.assertRaises(ImportError) as cm:
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self.load_module_by_name(name)
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self.assertEqual(cm.exception.name, name)
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def test_nonmodule(self):
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# Test returning a non-module object from create works.
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name = self.name + '_nonmodule'
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mod = self.load_module_by_name(name)
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self.assertNotEqual(type(mod), type(unittest))
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self.assertEqual(mod.three, 3)
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# issue 27782
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def test_nonmodule_with_methods(self):
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# Test creating a non-module object with methods defined.
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name = self.name + '_nonmodule_with_methods'
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mod = self.load_module_by_name(name)
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self.assertNotEqual(type(mod), type(unittest))
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self.assertEqual(mod.three, 3)
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self.assertEqual(mod.bar(10, 1), 9)
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def test_null_slots(self):
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# Test that NULL slots aren't a problem.
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name = self.name + '_null_slots'
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module = self.load_module_by_name(name)
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self.assertIsInstance(module, types.ModuleType)
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self.assertEqual(module.__name__, name)
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def test_bad_modules(self):
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# Test SystemError is raised for misbehaving extensions.
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for name_base in [
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'bad_slot_large',
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'bad_slot_negative',
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'create_int_with_state',
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'negative_size',
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'export_null',
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'export_uninitialized',
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'export_raise',
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'export_unreported_exception',
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'create_null',
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'create_raise',
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'create_unreported_exception',
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'nonmodule_with_exec_slots',
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'exec_err',
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'exec_raise',
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'exec_unreported_exception',
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]:
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with self.subTest(name_base):
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name = self.name + '_' + name_base
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with self.assertRaises(SystemError):
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self.load_module_by_name(name)
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def test_nonascii(self):
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# Test that modules with non-ASCII names can be loaded.
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# punycode behaves slightly differently in some-ASCII and no-ASCII
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# cases, so test both.
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cases = [
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(self.name + '_zkou\u0161ka_na\u010dten\xed', 'Czech'),
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('\uff3f\u30a4\u30f3\u30dd\u30fc\u30c8\u30c6\u30b9\u30c8',
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'Japanese'),
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]
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for name, lang in cases:
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with self.subTest(name):
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module = self.load_module_by_name(name)
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self.assertEqual(module.__name__, name)
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self.assertEqual(module.__doc__, "Module named in %s" % lang)
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(Frozen_MultiPhaseExtensionModuleTests,
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Source_MultiPhaseExtensionModuleTests
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) = util.test_both(MultiPhaseExtensionModuleTests, machinery=machinery)
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if __name__ == '__main__':
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unittest.main()
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