mirror of https://github.com/python/cpython
351 lines
13 KiB
Python
351 lines
13 KiB
Python
import imp
|
|
import os
|
|
import os.path
|
|
import shutil
|
|
import sys
|
|
import unittest
|
|
from test import support
|
|
import importlib
|
|
|
|
class LockTests(unittest.TestCase):
|
|
|
|
"""Very basic test of import lock functions."""
|
|
|
|
def verify_lock_state(self, expected):
|
|
self.assertEqual(imp.lock_held(), expected,
|
|
"expected imp.lock_held() to be %r" % expected)
|
|
def testLock(self):
|
|
LOOPS = 50
|
|
|
|
# The import lock may already be held, e.g. if the test suite is run
|
|
# via "import test.autotest".
|
|
lock_held_at_start = imp.lock_held()
|
|
self.verify_lock_state(lock_held_at_start)
|
|
|
|
for i in range(LOOPS):
|
|
imp.acquire_lock()
|
|
self.verify_lock_state(True)
|
|
|
|
for i in range(LOOPS):
|
|
imp.release_lock()
|
|
|
|
# The original state should be restored now.
|
|
self.verify_lock_state(lock_held_at_start)
|
|
|
|
if not lock_held_at_start:
|
|
try:
|
|
imp.release_lock()
|
|
except RuntimeError:
|
|
pass
|
|
else:
|
|
self.fail("release_lock() without lock should raise "
|
|
"RuntimeError")
|
|
|
|
class ImportTests(unittest.TestCase):
|
|
def setUp(self):
|
|
mod = importlib.import_module('test.encoded_modules')
|
|
self.test_strings = mod.test_strings
|
|
self.test_path = mod.__path__
|
|
|
|
def test_import_encoded_module(self):
|
|
for modname, encoding, teststr in self.test_strings:
|
|
mod = importlib.import_module('test.encoded_modules.'
|
|
'module_' + modname)
|
|
self.assertEqual(teststr, mod.test)
|
|
|
|
def test_find_module_encoding(self):
|
|
for mod, encoding, _ in self.test_strings:
|
|
with imp.find_module('module_' + mod, self.test_path)[0] as fd:
|
|
self.assertEqual(fd.encoding, encoding)
|
|
|
|
def test_issue1267(self):
|
|
for mod, encoding, _ in self.test_strings:
|
|
fp, filename, info = imp.find_module('module_' + mod,
|
|
self.test_path)
|
|
with fp:
|
|
self.assertNotEqual(fp, None)
|
|
self.assertEqual(fp.encoding, encoding)
|
|
self.assertEqual(fp.tell(), 0)
|
|
self.assertEqual(fp.readline(), '# test %s encoding\n'
|
|
% encoding)
|
|
|
|
fp, filename, info = imp.find_module("tokenize")
|
|
with fp:
|
|
self.assertNotEqual(fp, None)
|
|
self.assertEqual(fp.encoding, "utf-8")
|
|
self.assertEqual(fp.tell(), 0)
|
|
self.assertEqual(fp.readline(),
|
|
'"""Tokenization help for Python programs.\n')
|
|
|
|
def test_issue3594(self):
|
|
temp_mod_name = 'test_imp_helper'
|
|
sys.path.insert(0, '.')
|
|
try:
|
|
with open(temp_mod_name + '.py', 'w') as file:
|
|
file.write("# coding: cp1252\nu = 'test.test_imp'\n")
|
|
file, filename, info = imp.find_module(temp_mod_name)
|
|
file.close()
|
|
self.assertEqual(file.encoding, 'cp1252')
|
|
finally:
|
|
del sys.path[0]
|
|
support.unlink(temp_mod_name + '.py')
|
|
support.unlink(temp_mod_name + '.pyc')
|
|
support.unlink(temp_mod_name + '.pyo')
|
|
|
|
def test_issue5604(self):
|
|
# Test cannot cover imp.load_compiled function.
|
|
# Martin von Loewis note what shared library cannot have non-ascii
|
|
# character because init_xxx function cannot be compiled
|
|
# and issue never happens for dynamic modules.
|
|
# But sources modified to follow generic way for processing pathes.
|
|
|
|
# the return encoding could be uppercase or None
|
|
fs_encoding = sys.getfilesystemencoding()
|
|
|
|
# covers utf-8 and Windows ANSI code pages
|
|
# one non-space symbol from every page
|
|
# (http://en.wikipedia.org/wiki/Code_page)
|
|
known_locales = {
|
|
'utf-8' : b'\xc3\xa4',
|
|
'cp1250' : b'\x8C',
|
|
'cp1251' : b'\xc0',
|
|
'cp1252' : b'\xc0',
|
|
'cp1253' : b'\xc1',
|
|
'cp1254' : b'\xc0',
|
|
'cp1255' : b'\xe0',
|
|
'cp1256' : b'\xe0',
|
|
'cp1257' : b'\xc0',
|
|
'cp1258' : b'\xc0',
|
|
}
|
|
|
|
if sys.platform == 'darwin':
|
|
self.assertEqual(fs_encoding, 'utf-8')
|
|
# Mac OS X uses the Normal Form D decomposition
|
|
# http://developer.apple.com/mac/library/qa/qa2001/qa1173.html
|
|
special_char = b'a\xcc\x88'
|
|
else:
|
|
special_char = known_locales.get(fs_encoding)
|
|
|
|
if not special_char:
|
|
self.skipTest("can't run this test with %s as filesystem encoding"
|
|
% fs_encoding)
|
|
decoded_char = special_char.decode(fs_encoding)
|
|
temp_mod_name = 'test_imp_helper_' + decoded_char
|
|
test_package_name = 'test_imp_helper_package_' + decoded_char
|
|
init_file_name = os.path.join(test_package_name, '__init__.py')
|
|
try:
|
|
# if the curdir is not in sys.path the test fails when run with
|
|
# ./python ./Lib/test/regrtest.py test_imp
|
|
sys.path.insert(0, os.curdir)
|
|
with open(temp_mod_name + '.py', 'w') as file:
|
|
file.write('a = 1\n')
|
|
file, filename, info = imp.find_module(temp_mod_name)
|
|
with file:
|
|
self.assertIsNotNone(file)
|
|
self.assertTrue(filename[:-3].endswith(temp_mod_name))
|
|
self.assertEqual(info[0], '.py')
|
|
self.assertEqual(info[1], 'U')
|
|
self.assertEqual(info[2], imp.PY_SOURCE)
|
|
|
|
mod = imp.load_module(temp_mod_name, file, filename, info)
|
|
self.assertEqual(mod.a, 1)
|
|
|
|
mod = imp.load_source(temp_mod_name, temp_mod_name + '.py')
|
|
self.assertEqual(mod.a, 1)
|
|
|
|
mod = imp.load_compiled(
|
|
temp_mod_name, imp.cache_from_source(temp_mod_name + '.py'))
|
|
self.assertEqual(mod.a, 1)
|
|
|
|
if not os.path.exists(test_package_name):
|
|
os.mkdir(test_package_name)
|
|
with open(init_file_name, 'w') as file:
|
|
file.write('b = 2\n')
|
|
package = imp.load_package(test_package_name, test_package_name)
|
|
self.assertEqual(package.b, 2)
|
|
finally:
|
|
del sys.path[0]
|
|
for ext in ('.py', '.pyc', '.pyo'):
|
|
support.unlink(temp_mod_name + ext)
|
|
support.unlink(init_file_name + ext)
|
|
support.rmtree(test_package_name)
|
|
|
|
|
|
class ReloadTests(unittest.TestCase):
|
|
|
|
"""Very basic tests to make sure that imp.reload() operates just like
|
|
reload()."""
|
|
|
|
def test_source(self):
|
|
# XXX (ncoghlan): It would be nice to use test.support.CleanImport
|
|
# here, but that breaks because the os module registers some
|
|
# handlers in copy_reg on import. Since CleanImport doesn't
|
|
# revert that registration, the module is left in a broken
|
|
# state after reversion. Reinitialising the module contents
|
|
# and just reverting os.environ to its previous state is an OK
|
|
# workaround
|
|
with support.EnvironmentVarGuard():
|
|
import os
|
|
imp.reload(os)
|
|
|
|
def test_extension(self):
|
|
with support.CleanImport('time'):
|
|
import time
|
|
imp.reload(time)
|
|
|
|
def test_builtin(self):
|
|
with support.CleanImport('marshal'):
|
|
import marshal
|
|
imp.reload(marshal)
|
|
|
|
|
|
class PEP3147Tests(unittest.TestCase):
|
|
"""Tests of PEP 3147."""
|
|
|
|
tag = imp.get_tag()
|
|
|
|
def test_cache_from_source(self):
|
|
# Given the path to a .py file, return the path to its PEP 3147
|
|
# defined .pyc file (i.e. under __pycache__).
|
|
self.assertEqual(
|
|
imp.cache_from_source('/foo/bar/baz/qux.py', True),
|
|
'/foo/bar/baz/__pycache__/qux.{}.pyc'.format(self.tag))
|
|
|
|
def test_cache_from_source_optimized(self):
|
|
# Given the path to a .py file, return the path to its PEP 3147
|
|
# defined .pyo file (i.e. under __pycache__).
|
|
self.assertEqual(
|
|
imp.cache_from_source('/foo/bar/baz/qux.py', False),
|
|
'/foo/bar/baz/__pycache__/qux.{}.pyo'.format(self.tag))
|
|
|
|
def test_cache_from_source_cwd(self):
|
|
self.assertEqual(imp.cache_from_source('foo.py', True),
|
|
os.sep.join(('__pycache__',
|
|
'foo.{}.pyc'.format(self.tag))))
|
|
|
|
def test_cache_from_source_override(self):
|
|
# When debug_override is not None, it can be any true-ish or false-ish
|
|
# value.
|
|
self.assertEqual(
|
|
imp.cache_from_source('/foo/bar/baz.py', []),
|
|
'/foo/bar/__pycache__/baz.{}.pyo'.format(self.tag))
|
|
self.assertEqual(
|
|
imp.cache_from_source('/foo/bar/baz.py', [17]),
|
|
'/foo/bar/__pycache__/baz.{}.pyc'.format(self.tag))
|
|
# However if the bool-ishness can't be determined, the exception
|
|
# propagates.
|
|
class Bearish:
|
|
def __bool__(self): raise RuntimeError
|
|
self.assertRaises(
|
|
RuntimeError,
|
|
imp.cache_from_source, '/foo/bar/baz.py', Bearish())
|
|
|
|
@unittest.skipIf(os.altsep is None,
|
|
'test meaningful only where os.altsep is defined')
|
|
def test_altsep_cache_from_source(self):
|
|
# Windows path and PEP 3147.
|
|
self.assertEqual(
|
|
imp.cache_from_source('\\foo\\bar\\baz\\qux.py', True),
|
|
'\\foo\\bar\\baz\\__pycache__\\qux.{}.pyc'.format(self.tag))
|
|
|
|
@unittest.skipIf(os.altsep is None,
|
|
'test meaningful only where os.altsep is defined')
|
|
def test_altsep_and_sep_cache_from_source(self):
|
|
# Windows path and PEP 3147 where altsep is right of sep.
|
|
self.assertEqual(
|
|
imp.cache_from_source('\\foo\\bar/baz\\qux.py', True),
|
|
'\\foo\\bar/baz\\__pycache__\\qux.{}.pyc'.format(self.tag))
|
|
|
|
@unittest.skipIf(os.altsep is None,
|
|
'test meaningful only where os.altsep is defined')
|
|
def test_sep_altsep_and_sep_cache_from_source(self):
|
|
# Windows path and PEP 3147 where sep is right of altsep.
|
|
self.assertEqual(
|
|
imp.cache_from_source('\\foo\\bar\\baz/qux.py', True),
|
|
'\\foo\\bar\\baz/__pycache__/qux.{}.pyc'.format(self.tag))
|
|
|
|
def test_source_from_cache(self):
|
|
# Given the path to a PEP 3147 defined .pyc file, return the path to
|
|
# its source. This tests the good path.
|
|
self.assertEqual(imp.source_from_cache(
|
|
'/foo/bar/baz/__pycache__/qux.{}.pyc'.format(self.tag)),
|
|
'/foo/bar/baz/qux.py')
|
|
|
|
def test_source_from_cache_bad_path(self):
|
|
# When the path to a pyc file is not in PEP 3147 format, a ValueError
|
|
# is raised.
|
|
self.assertRaises(
|
|
ValueError, imp.source_from_cache, '/foo/bar/bazqux.pyc')
|
|
|
|
def test_source_from_cache_no_slash(self):
|
|
# No slashes at all in path -> ValueError
|
|
self.assertRaises(
|
|
ValueError, imp.source_from_cache, 'foo.cpython-32.pyc')
|
|
|
|
def test_source_from_cache_too_few_dots(self):
|
|
# Too few dots in final path component -> ValueError
|
|
self.assertRaises(
|
|
ValueError, imp.source_from_cache, '__pycache__/foo.pyc')
|
|
|
|
def test_source_from_cache_too_many_dots(self):
|
|
# Too many dots in final path component -> ValueError
|
|
self.assertRaises(
|
|
ValueError, imp.source_from_cache,
|
|
'__pycache__/foo.cpython-32.foo.pyc')
|
|
|
|
def test_source_from_cache_no__pycache__(self):
|
|
# Another problem with the path -> ValueError
|
|
self.assertRaises(
|
|
ValueError, imp.source_from_cache,
|
|
'/foo/bar/foo.cpython-32.foo.pyc')
|
|
|
|
def test_package___file__(self):
|
|
# Test that a package's __file__ points to the right source directory.
|
|
os.mkdir('pep3147')
|
|
sys.path.insert(0, os.curdir)
|
|
def cleanup():
|
|
if sys.path[0] == os.curdir:
|
|
del sys.path[0]
|
|
shutil.rmtree('pep3147')
|
|
self.addCleanup(cleanup)
|
|
# Touch the __init__.py file.
|
|
with open('pep3147/__init__.py', 'w'):
|
|
pass
|
|
m = __import__('pep3147')
|
|
# Ensure we load the pyc file.
|
|
support.forget('pep3147')
|
|
m = __import__('pep3147')
|
|
self.assertEqual(m.__file__,
|
|
os.sep.join(('.', 'pep3147', '__init__.py')))
|
|
|
|
|
|
class NullImporterTests(unittest.TestCase):
|
|
@unittest.skipIf(support.TESTFN_UNENCODABLE is None,
|
|
"Need an undecodeable filename")
|
|
def test_unencodeable(self):
|
|
name = support.TESTFN_UNENCODABLE
|
|
os.mkdir(name)
|
|
try:
|
|
self.assertRaises(ImportError, imp.NullImporter, name)
|
|
finally:
|
|
os.rmdir(name)
|
|
|
|
|
|
def test_main():
|
|
tests = [
|
|
ImportTests,
|
|
PEP3147Tests,
|
|
ReloadTests,
|
|
NullImporterTests,
|
|
]
|
|
try:
|
|
import _thread
|
|
except ImportError:
|
|
pass
|
|
else:
|
|
tests.append(LockTests)
|
|
support.run_unittest(*tests)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|