423 lines
18 KiB
Python
423 lines
18 KiB
Python
# Test the windows specific win32reg module.
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# Only win32reg functions not hit here: FlushKey, LoadKey and SaveKey
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import os, sys, errno
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import unittest
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from test import test_support
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threading = test_support.import_module("threading")
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from platform import machine
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# Do this first so test will be skipped if module doesn't exist
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test_support.import_module('_winreg')
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# Now import everything
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from _winreg import *
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try:
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REMOTE_NAME = sys.argv[sys.argv.index("--remote")+1]
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except (IndexError, ValueError):
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REMOTE_NAME = None
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# tuple of (major, minor)
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WIN_VER = sys.getwindowsversion()[:2]
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# Some tests should only run on 64-bit architectures where WOW64 will be.
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WIN64_MACHINE = True if machine() == "AMD64" else False
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# Starting with Windows 7 and Windows Server 2008 R2, WOW64 no longer uses
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# registry reflection and formerly reflected keys are shared instead.
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# Windows 7 and Windows Server 2008 R2 are version 6.1. Due to this, some
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# tests are only valid up until 6.1
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HAS_REFLECTION = True if WIN_VER < (6, 1) else False
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test_key_name = "SOFTWARE\\Python Registry Test Key - Delete Me"
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# On OS'es that support reflection we should test with a reflected key
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test_reflect_key_name = "SOFTWARE\\Classes\\Python Test Key - Delete Me"
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test_data = [
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("Int Value", 45, REG_DWORD),
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("String Val", "A string value", REG_SZ),
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("StringExpand", "The path is %path%", REG_EXPAND_SZ),
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("Multi-string", ["Lots", "of", "string", "values"], REG_MULTI_SZ),
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("Raw Data", ("binary"+chr(0)+"data"), REG_BINARY),
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("Big String", "x"*(2**14-1), REG_SZ),
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("Big Binary", "x"*(2**14), REG_BINARY),
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]
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if test_support.have_unicode:
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test_data += [
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(unicode("Unicode Val"), unicode("A Unicode value"), REG_SZ,),
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("UnicodeExpand", unicode("The path is %path%"), REG_EXPAND_SZ),
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("Multi-unicode", [unicode("Lots"), unicode("of"), unicode("unicode"),
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unicode("values")], REG_MULTI_SZ),
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("Multi-mixed", [unicode("Unicode"), unicode("and"), "string",
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"values"], REG_MULTI_SZ),
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]
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class BaseWinregTests(unittest.TestCase):
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def setUp(self):
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# Make sure that the test key is absent when the test
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# starts.
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self.delete_tree(HKEY_CURRENT_USER, test_key_name)
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def delete_tree(self, root, subkey):
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try:
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hkey = OpenKey(root, subkey, KEY_ALL_ACCESS)
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except WindowsError:
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# subkey does not exist
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return
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while True:
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try:
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subsubkey = EnumKey(hkey, 0)
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except WindowsError:
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# no more subkeys
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break
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self.delete_tree(hkey, subsubkey)
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CloseKey(hkey)
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DeleteKey(root, subkey)
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def _write_test_data(self, root_key, CreateKey=CreateKey):
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# Set the default value for this key.
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SetValue(root_key, test_key_name, REG_SZ, "Default value")
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key = CreateKey(root_key, test_key_name)
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# Create a sub-key
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sub_key = CreateKey(key, "sub_key")
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# Give the sub-key some named values
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for value_name, value_data, value_type in test_data:
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SetValueEx(sub_key, value_name, 0, value_type, value_data)
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# Check we wrote as many items as we thought.
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nkeys, nvalues, since_mod = QueryInfoKey(key)
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self.assertEqual(nkeys, 1, "Not the correct number of sub keys")
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self.assertEqual(nvalues, 1, "Not the correct number of values")
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nkeys, nvalues, since_mod = QueryInfoKey(sub_key)
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self.assertEqual(nkeys, 0, "Not the correct number of sub keys")
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self.assertEqual(nvalues, len(test_data),
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"Not the correct number of values")
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# Close this key this way...
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# (but before we do, copy the key as an integer - this allows
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# us to test that the key really gets closed).
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int_sub_key = int(sub_key)
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CloseKey(sub_key)
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try:
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QueryInfoKey(int_sub_key)
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self.fail("It appears the CloseKey() function does "
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"not close the actual key!")
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except EnvironmentError:
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pass
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# ... and close that key that way :-)
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int_key = int(key)
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key.Close()
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try:
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QueryInfoKey(int_key)
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self.fail("It appears the key.Close() function "
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"does not close the actual key!")
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except EnvironmentError:
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pass
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def _read_test_data(self, root_key, OpenKey=OpenKey):
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# Check we can get default value for this key.
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val = QueryValue(root_key, test_key_name)
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self.assertEqual(val, "Default value",
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"Registry didn't give back the correct value")
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key = OpenKey(root_key, test_key_name)
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# Read the sub-keys
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with OpenKey(key, "sub_key") as sub_key:
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# Check I can enumerate over the values.
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index = 0
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while 1:
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try:
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data = EnumValue(sub_key, index)
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except EnvironmentError:
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break
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self.assertIn(data, test_data,
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"Didn't read back the correct test data")
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index = index + 1
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self.assertEqual(index, len(test_data),
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"Didn't read the correct number of items")
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# Check I can directly access each item
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for value_name, value_data, value_type in test_data:
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read_val, read_typ = QueryValueEx(sub_key, value_name)
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self.assertEqual(read_val, value_data,
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"Could not directly read the value")
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self.assertEqual(read_typ, value_type,
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"Could not directly read the value")
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sub_key.Close()
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# Enumerate our main key.
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read_val = EnumKey(key, 0)
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self.assertEqual(read_val, "sub_key", "Read subkey value wrong")
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try:
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EnumKey(key, 1)
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self.fail("Was able to get a second key when I only have one!")
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except EnvironmentError:
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pass
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key.Close()
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def _delete_test_data(self, root_key):
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key = OpenKey(root_key, test_key_name, 0, KEY_ALL_ACCESS)
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sub_key = OpenKey(key, "sub_key", 0, KEY_ALL_ACCESS)
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# It is not necessary to delete the values before deleting
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# the key (although subkeys must not exist). We delete them
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# manually just to prove we can :-)
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for value_name, value_data, value_type in test_data:
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DeleteValue(sub_key, value_name)
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nkeys, nvalues, since_mod = QueryInfoKey(sub_key)
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self.assertEqual(nkeys, 0, "subkey not empty before delete")
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self.assertEqual(nvalues, 0, "subkey not empty before delete")
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sub_key.Close()
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DeleteKey(key, "sub_key")
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try:
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# Shouldnt be able to delete it twice!
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DeleteKey(key, "sub_key")
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self.fail("Deleting the key twice succeeded")
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except EnvironmentError:
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pass
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key.Close()
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DeleteKey(root_key, test_key_name)
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# Opening should now fail!
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try:
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key = OpenKey(root_key, test_key_name)
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self.fail("Could open the non-existent key")
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except WindowsError: # Use this error name this time
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pass
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def _test_all(self, root_key):
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self._write_test_data(root_key)
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self._read_test_data(root_key)
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self._delete_test_data(root_key)
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class LocalWinregTests(BaseWinregTests):
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def test_registry_works(self):
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self._test_all(HKEY_CURRENT_USER)
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def test_registry_works_extended_functions(self):
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# Substitute the regular CreateKey and OpenKey calls with their
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# extended counterparts.
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# Note: DeleteKeyEx is not used here because it is platform dependent
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cke = lambda key, sub_key: CreateKeyEx(key, sub_key, 0, KEY_ALL_ACCESS)
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self._write_test_data(HKEY_CURRENT_USER, cke)
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oke = lambda key, sub_key: OpenKeyEx(key, sub_key, 0, KEY_READ)
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self._read_test_data(HKEY_CURRENT_USER, oke)
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self._delete_test_data(HKEY_CURRENT_USER)
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def test_connect_registry_to_local_machine_works(self):
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# perform minimal ConnectRegistry test which just invokes it
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h = ConnectRegistry(None, HKEY_LOCAL_MACHINE)
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self.assertNotEqual(h.handle, 0)
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h.Close()
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self.assertEqual(h.handle, 0)
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def test_inexistant_remote_registry(self):
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connect = lambda: ConnectRegistry("abcdefghijkl", HKEY_CURRENT_USER)
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self.assertRaises(WindowsError, connect)
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def test_expand_environment_strings(self):
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r = ExpandEnvironmentStrings(u"%windir%\\test")
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self.assertEqual(type(r), unicode)
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self.assertEqual(r, os.environ["windir"] + "\\test")
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def test_context_manager(self):
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# ensure that the handle is closed if an exception occurs
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try:
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with ConnectRegistry(None, HKEY_LOCAL_MACHINE) as h:
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self.assertNotEqual(h.handle, 0)
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raise WindowsError
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except WindowsError:
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self.assertEqual(h.handle, 0)
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def test_changing_value(self):
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# Issue2810: A race condition in 2.6 and 3.1 may cause
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# EnumValue or QueryValue to throw "WindowsError: More data is
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# available"
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done = False
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class VeryActiveThread(threading.Thread):
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def run(self):
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with CreateKey(HKEY_CURRENT_USER, test_key_name) as key:
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use_short = True
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long_string = 'x'*2000
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while not done:
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s = 'x' if use_short else long_string
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use_short = not use_short
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SetValue(key, 'changing_value', REG_SZ, s)
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thread = VeryActiveThread()
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thread.start()
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try:
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with CreateKey(HKEY_CURRENT_USER,
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test_key_name+'\\changing_value') as key:
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for _ in range(1000):
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num_subkeys, num_values, t = QueryInfoKey(key)
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for i in range(num_values):
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name = EnumValue(key, i)
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QueryValue(key, name[0])
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finally:
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done = True
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thread.join()
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with OpenKey(HKEY_CURRENT_USER, test_key_name, 0, KEY_ALL_ACCESS) as key:
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DeleteKey(key, 'changing_value')
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DeleteKey(HKEY_CURRENT_USER, test_key_name)
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def test_long_key(self):
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# Issue2810, in 2.6 and 3.1 when the key name was exactly 256
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# characters, EnumKey threw "WindowsError: More data is
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# available"
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name = 'x'*256
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try:
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with CreateKey(HKEY_CURRENT_USER, test_key_name) as key:
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SetValue(key, name, REG_SZ, 'x')
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num_subkeys, num_values, t = QueryInfoKey(key)
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EnumKey(key, 0)
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finally:
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with OpenKey(HKEY_CURRENT_USER, test_key_name, 0, KEY_ALL_ACCESS) as key:
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DeleteKey(key, name)
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DeleteKey(HKEY_CURRENT_USER, test_key_name)
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def test_dynamic_key(self):
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# Issue2810, when the value is dynamically generated, these
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# throw "WindowsError: More data is available" in 2.6 and 3.1
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try:
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EnumValue(HKEY_PERFORMANCE_DATA, 0)
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except OSError as e:
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if e.errno in (errno.EPERM, errno.EACCES):
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self.skipTest("access denied to registry key "
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"(are you running in a non-interactive session?)")
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raise
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QueryValueEx(HKEY_PERFORMANCE_DATA, None)
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# Reflection requires XP x64/Vista at a minimum. XP doesn't have this stuff
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# or DeleteKeyEx so make sure their use raises NotImplementedError
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@unittest.skipUnless(WIN_VER < (5, 2), "Requires Windows XP")
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def test_reflection_unsupported(self):
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try:
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with CreateKey(HKEY_CURRENT_USER, test_key_name) as ck:
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self.assertNotEqual(ck.handle, 0)
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key = OpenKey(HKEY_CURRENT_USER, test_key_name)
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self.assertNotEqual(key.handle, 0)
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with self.assertRaises(NotImplementedError):
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DisableReflectionKey(key)
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with self.assertRaises(NotImplementedError):
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EnableReflectionKey(key)
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with self.assertRaises(NotImplementedError):
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QueryReflectionKey(key)
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with self.assertRaises(NotImplementedError):
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DeleteKeyEx(HKEY_CURRENT_USER, test_key_name)
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finally:
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DeleteKey(HKEY_CURRENT_USER, test_key_name)
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@unittest.skipUnless(REMOTE_NAME, "Skipping remote registry tests")
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class RemoteWinregTests(BaseWinregTests):
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def test_remote_registry_works(self):
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remote_key = ConnectRegistry(REMOTE_NAME, HKEY_CURRENT_USER)
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self._test_all(remote_key)
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@unittest.skipUnless(WIN64_MACHINE, "x64 specific registry tests")
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class Win64WinregTests(BaseWinregTests):
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def test_reflection_functions(self):
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# Test that we can call the query, enable, and disable functions
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# on a key which isn't on the reflection list with no consequences.
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with OpenKey(HKEY_LOCAL_MACHINE, "Software") as key:
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# HKLM\Software is redirected but not reflected in all OSes
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self.assertTrue(QueryReflectionKey(key))
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self.assertEqual(None, EnableReflectionKey(key))
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self.assertEqual(None, DisableReflectionKey(key))
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self.assertTrue(QueryReflectionKey(key))
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@unittest.skipUnless(HAS_REFLECTION, "OS doesn't support reflection")
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def test_reflection(self):
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# Test that we can create, open, and delete keys in the 32-bit
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# area. Because we are doing this in a key which gets reflected,
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# test the differences of 32 and 64-bit keys before and after the
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# reflection occurs (ie. when the created key is closed).
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try:
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with CreateKeyEx(HKEY_CURRENT_USER, test_reflect_key_name, 0,
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KEY_ALL_ACCESS | KEY_WOW64_32KEY) as created_key:
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self.assertNotEqual(created_key.handle, 0)
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# The key should now be available in the 32-bit area
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with OpenKey(HKEY_CURRENT_USER, test_reflect_key_name, 0,
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KEY_ALL_ACCESS | KEY_WOW64_32KEY) as key:
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self.assertNotEqual(key.handle, 0)
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# Write a value to what currently is only in the 32-bit area
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SetValueEx(created_key, "", 0, REG_SZ, "32KEY")
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# The key is not reflected until created_key is closed.
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# The 64-bit version of the key should not be available yet.
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open_fail = lambda: OpenKey(HKEY_CURRENT_USER,
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test_reflect_key_name, 0,
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KEY_READ | KEY_WOW64_64KEY)
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self.assertRaises(WindowsError, open_fail)
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# Now explicitly open the 64-bit version of the key
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with OpenKey(HKEY_CURRENT_USER, test_reflect_key_name, 0,
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KEY_ALL_ACCESS | KEY_WOW64_64KEY) as key:
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self.assertNotEqual(key.handle, 0)
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# Make sure the original value we set is there
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self.assertEqual("32KEY", QueryValue(key, ""))
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# Set a new value, which will get reflected to 32-bit
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SetValueEx(key, "", 0, REG_SZ, "64KEY")
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# Reflection uses a "last-writer wins policy, so the value we set
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# on the 64-bit key should be the same on 32-bit
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with OpenKey(HKEY_CURRENT_USER, test_reflect_key_name, 0,
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KEY_READ | KEY_WOW64_32KEY) as key:
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self.assertEqual("64KEY", QueryValue(key, ""))
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finally:
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DeleteKeyEx(HKEY_CURRENT_USER, test_reflect_key_name,
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KEY_WOW64_32KEY, 0)
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@unittest.skipUnless(HAS_REFLECTION, "OS doesn't support reflection")
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def test_disable_reflection(self):
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# Make use of a key which gets redirected and reflected
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try:
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with CreateKeyEx(HKEY_CURRENT_USER, test_reflect_key_name, 0,
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KEY_ALL_ACCESS | KEY_WOW64_32KEY) as created_key:
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# QueryReflectionKey returns whether or not the key is disabled
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disabled = QueryReflectionKey(created_key)
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self.assertEqual(type(disabled), bool)
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# HKCU\Software\Classes is reflected by default
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self.assertFalse(disabled)
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DisableReflectionKey(created_key)
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self.assertTrue(QueryReflectionKey(created_key))
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# The key is now closed and would normally be reflected to the
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# 64-bit area, but let's make sure that didn't happen.
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open_fail = lambda: OpenKeyEx(HKEY_CURRENT_USER,
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test_reflect_key_name, 0,
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KEY_READ | KEY_WOW64_64KEY)
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self.assertRaises(WindowsError, open_fail)
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# Make sure the 32-bit key is actually there
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with OpenKeyEx(HKEY_CURRENT_USER, test_reflect_key_name, 0,
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KEY_READ | KEY_WOW64_32KEY) as key:
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self.assertNotEqual(key.handle, 0)
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finally:
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DeleteKeyEx(HKEY_CURRENT_USER, test_reflect_key_name,
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KEY_WOW64_32KEY, 0)
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def test_main():
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test_support.run_unittest(LocalWinregTests, RemoteWinregTests,
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Win64WinregTests)
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if __name__ == "__main__":
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if not REMOTE_NAME:
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print "Remote registry calls can be tested using",
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print "'test_winreg.py --remote \\\\machine_name'"
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test_main()
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