mirror of
https://github.com/python/cpython.git
synced 2024-12-18 22:34:08 +08:00
38c707e7e0
I have compared output between pre- and post-patch runs of these tests to make sure there's nothing missing and nothing broken, on both Windows and Linux. The only differences I found were actually tests that were previously *not* run.
81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
import os
|
|
import sys
|
|
import shutil
|
|
import string
|
|
import random
|
|
import tempfile
|
|
import unittest
|
|
|
|
from importlib.util import cache_from_source
|
|
from test.support import create_empty_file
|
|
|
|
class TestImport(unittest.TestCase):
|
|
|
|
def __init__(self, *args, **kw):
|
|
self.package_name = 'PACKAGE_'
|
|
while self.package_name in sys.modules:
|
|
self.package_name += random.choose(string.ascii_letters)
|
|
self.module_name = self.package_name + '.foo'
|
|
unittest.TestCase.__init__(self, *args, **kw)
|
|
|
|
def remove_modules(self):
|
|
for module_name in (self.package_name, self.module_name):
|
|
if module_name in sys.modules:
|
|
del sys.modules[module_name]
|
|
|
|
def setUp(self):
|
|
self.test_dir = tempfile.mkdtemp()
|
|
sys.path.append(self.test_dir)
|
|
self.package_dir = os.path.join(self.test_dir,
|
|
self.package_name)
|
|
os.mkdir(self.package_dir)
|
|
create_empty_file(os.path.join(self.package_dir, '__init__.py'))
|
|
self.module_path = os.path.join(self.package_dir, 'foo.py')
|
|
|
|
def tearDown(self):
|
|
shutil.rmtree(self.test_dir)
|
|
self.assertNotEqual(sys.path.count(self.test_dir), 0)
|
|
sys.path.remove(self.test_dir)
|
|
self.remove_modules()
|
|
|
|
def rewrite_file(self, contents):
|
|
compiled_path = cache_from_source(self.module_path)
|
|
if os.path.exists(compiled_path):
|
|
os.remove(compiled_path)
|
|
with open(self.module_path, 'w') as f:
|
|
f.write(contents)
|
|
|
|
def test_package_import__semantics(self):
|
|
|
|
# Generate a couple of broken modules to try importing.
|
|
|
|
# ...try loading the module when there's a SyntaxError
|
|
self.rewrite_file('for')
|
|
try: __import__(self.module_name)
|
|
except SyntaxError: pass
|
|
else: raise RuntimeError('Failed to induce SyntaxError') # self.fail()?
|
|
self.assertNotIn(self.module_name, sys.modules)
|
|
self.assertFalse(hasattr(sys.modules[self.package_name], 'foo'))
|
|
|
|
# ...make up a variable name that isn't bound in __builtins__
|
|
var = 'a'
|
|
while var in dir(__builtins__):
|
|
var += random.choose(string.ascii_letters)
|
|
|
|
# ...make a module that just contains that
|
|
self.rewrite_file(var)
|
|
|
|
try: __import__(self.module_name)
|
|
except NameError: pass
|
|
else: raise RuntimeError('Failed to induce NameError.')
|
|
|
|
# ...now change the module so that the NameError doesn't
|
|
# happen
|
|
self.rewrite_file('%s = 1' % var)
|
|
module = __import__(self.module_name).foo
|
|
self.assertEqual(getattr(module, var), 1)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|