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from . import util as test_util
machinery = test_util.import_importlib('importlib.machinery')
import os
import re
import sys
import unittest
from test import support
from distutils.util import get_platform
from contextlib import contextmanager
from .util import temp_module
support.import_module('winreg', required_on=['win'])
from winreg import (
CreateKey, HKEY_CURRENT_USER,
SetValue, REG_SZ, KEY_ALL_ACCESS,
EnumKey, CloseKey, DeleteKey, OpenKey
)
def delete_registry_tree(root, subkey):
try:
hkey = OpenKey(root, subkey, access=KEY_ALL_ACCESS)
except OSError:
# subkey does not exist
return
while True:
try:
subsubkey = EnumKey(hkey, 0)
except OSError:
# no more subkeys
break
delete_registry_tree(hkey, subsubkey)
CloseKey(hkey)
DeleteKey(root, subkey)
@contextmanager
def setup_module(machinery, name, path=None):
if machinery.WindowsRegistryFinder.DEBUG_BUILD:
root = machinery.WindowsRegistryFinder.REGISTRY_KEY_DEBUG
else:
root = machinery.WindowsRegistryFinder.REGISTRY_KEY
key = root.format(fullname=name,
sys_version=sys.version[:3])
try:
with temp_module(name, "a = 1") as location:
subkey = CreateKey(HKEY_CURRENT_USER, key)
if path is None:
path = location + ".py"
SetValue(subkey, "", REG_SZ, path)
yield
finally:
if machinery.WindowsRegistryFinder.DEBUG_BUILD:
key = os.path.dirname(key)
delete_registry_tree(HKEY_CURRENT_USER, key)
@unittest.skipUnless(sys.platform.startswith('win'), 'requires Windows')
class WindowsRegistryFinderTests:
# The module name is process-specific, allowing for
# simultaneous runs of the same test on a single machine.
test_module = "spamham{}".format(os.getpid())
def test_find_spec_missing(self):
spec = self.machinery.WindowsRegistryFinder.find_spec('spam')
self.assertIs(spec, None)
def test_find_module_missing(self):
loader = self.machinery.WindowsRegistryFinder.find_module('spam')
self.assertIs(loader, None)
def test_module_found(self):
with setup_module(self.machinery, self.test_module):
loader = self.machinery.WindowsRegistryFinder.find_module(self.test_module)
spec = self.machinery.WindowsRegistryFinder.find_spec(self.test_module)
self.assertIsNot(loader, None)
self.assertIsNot(spec, None)
def test_module_not_found(self):
with setup_module(self.machinery, self.test_module, path="."):
loader = self.machinery.WindowsRegistryFinder.find_module(self.test_module)
spec = self.machinery.WindowsRegistryFinder.find_spec(self.test_module)
self.assertIsNone(loader)
self.assertIsNone(spec)
(Frozen_WindowsRegistryFinderTests,
Source_WindowsRegistryFinderTests
) = test_util.test_both(WindowsRegistryFinderTests, machinery=machinery)
@unittest.skipUnless(sys.platform.startswith('win'), 'requires Windows')
class WindowsExtensionSuffixTests:
def test_tagged_suffix(self):
suffixes = self.machinery.EXTENSION_SUFFIXES
expected_tag = ".cp{0.major}{0.minor}-{1}.pyd".format(sys.version_info,
re.sub('[^a-zA-Z0-9]', '_', get_platform()))
try:
untagged_i = suffixes.index(".pyd")
except ValueError:
untagged_i = suffixes.index("_d.pyd")
expected_tag = "_d" + expected_tag
self.assertIn(expected_tag, suffixes)
# Ensure the tags are in the correct order
tagged_i = suffixes.index(expected_tag)
self.assertLess(tagged_i, untagged_i)
(Frozen_WindowsExtensionSuffixTests,
Source_WindowsExtensionSuffixTests
) = test_util.test_both(WindowsExtensionSuffixTests, machinery=machinery)
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