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# -*- coding: utf-8 -*-
# Test the windows specific win32reg module.
# Only win32reg functions not hit here: FlushKey, LoadKey and SaveKey
import os, sys
import unittest
from test import support
# Do this first so test will be skipped if module doesn't exist
support.import_module('winreg')
# Now import everything
from winreg import *
test_key_name = "SOFTWARE\\Python Registry Test Key - Delete Me"
test_data = [
("Int Value", 45, REG_DWORD),
("String Val", "A string value", REG_SZ),
("StringExpand", "The path is %path%", REG_EXPAND_SZ),
("Multi-string", ["Lots", "of", "string", "values"], REG_MULTI_SZ),
("Raw Data", b"binary\x00data", REG_BINARY),
("Big String", "x"*(2**14-1), REG_SZ),
("Big Binary", b"x"*(2**14), REG_BINARY),
# Two and three kanjis, meaning: "Japan" and "Japanese")
("Japanese 日本", "日本語", REG_SZ),
]
class WinregTests(unittest.TestCase):
remote_name = None
def setUp(self):
# Make sure that the test key is absent when the test
# starts.
self.delete_tree(HKEY_CURRENT_USER, test_key_name)
def delete_tree(self, root, subkey):
try:
hkey = OpenKey(root, subkey, KEY_ALL_ACCESS)
except WindowsError:
# subkey does not exist
return
while True:
try:
subsubkey = EnumKey(hkey, 0)
except WindowsError:
# no more subkeys
break
self.delete_tree(hkey, subsubkey)
CloseKey(hkey)
DeleteKey(root, subkey)
def WriteTestData(self, root_key, subkeystr="sub_key"):
# Set the default value for this key.
SetValue(root_key, test_key_name, REG_SZ, "Default value")
key = CreateKey(root_key, test_key_name)
self.assert_(key.handle != 0)
# Create a sub-key
sub_key = CreateKey(key, subkeystr)
# Give the sub-key some named values
for value_name, value_data, value_type in test_data:
SetValueEx(sub_key, value_name, 0, value_type, value_data)
# Check we wrote as many items as we thought.
nkeys, nvalues, since_mod = QueryInfoKey(key)
self.assertEquals(nkeys, 1, "Not the correct number of sub keys")
self.assertEquals(nvalues, 1, "Not the correct number of values")
nkeys, nvalues, since_mod = QueryInfoKey(sub_key)
self.assertEquals(nkeys, 0, "Not the correct number of sub keys")
self.assertEquals(nvalues, len(test_data),
"Not the correct number of values")
# Close this key this way...
# (but before we do, copy the key as an integer - this allows
# us to test that the key really gets closed).
int_sub_key = int(sub_key)
CloseKey(sub_key)
try:
QueryInfoKey(int_sub_key)
self.fail("It appears the CloseKey() function does "
"not close the actual key!")
except EnvironmentError:
pass
# ... and close that key that way :-)
int_key = int(key)
key.Close()
try:
QueryInfoKey(int_key)
self.fail("It appears the key.Close() function "
"does not close the actual key!")
except EnvironmentError:
pass
def ReadTestData(self, root_key, subkeystr="sub_key"):
# Check we can get default value for this key.
val = QueryValue(root_key, test_key_name)
self.assertEquals(val, "Default value",
"Registry didn't give back the correct value")
key = OpenKey(root_key, test_key_name)
# Read the sub-keys
with OpenKey(key, subkeystr) as sub_key:
# Check I can enumerate over the values.
index = 0
while 1:
try:
data = EnumValue(sub_key, index)
except EnvironmentError:
break
self.assertEquals(data in test_data, True,
"Didn't read back the correct test data")
index = index + 1
self.assertEquals(index, len(test_data),
"Didn't read the correct number of items")
# Check I can directly access each item
for value_name, value_data, value_type in test_data:
read_val, read_typ = QueryValueEx(sub_key, value_name)
self.assertEquals(read_val, value_data,
"Could not directly read the value")
self.assertEquals(read_typ, value_type,
"Could not directly read the value")
sub_key.Close()
# Enumerate our main key.
read_val = EnumKey(key, 0)
self.assertEquals(read_val, subkeystr, "Read subkey value wrong")
try:
EnumKey(key, 1)
self.fail("Was able to get a second key when I only have one!")
except EnvironmentError:
pass
key.Close()
def DeleteTestData(self, root_key, subkeystr="sub_key"):
key = OpenKey(root_key, test_key_name, 0, KEY_ALL_ACCESS)
sub_key = OpenKey(key, subkeystr, 0, KEY_ALL_ACCESS)
# It is not necessary to delete the values before deleting
# the key (although subkeys must not exist). We delete them
# manually just to prove we can :-)
for value_name, value_data, value_type in test_data:
DeleteValue(sub_key, value_name)
nkeys, nvalues, since_mod = QueryInfoKey(sub_key)
self.assertEquals(nkeys, 0, "subkey not empty before delete")
self.assertEquals(nvalues, 0, "subkey not empty before delete")
sub_key.Close()
DeleteKey(key, subkeystr)
try:
# Shouldnt be able to delete it twice!
DeleteKey(key, subkeystr)
self.fail("Deleting the key twice succeeded")
except EnvironmentError:
pass
key.Close()
DeleteKey(root_key, test_key_name)
# Opening should now fail!
try:
key = OpenKey(root_key, test_key_name)
self.fail("Could open the non-existent key")
except WindowsError: # Use this error name this time
pass
def TestAll(self, root_key, subkeystr="sub_key"):
self.WriteTestData(root_key, subkeystr)
self.ReadTestData(root_key, subkeystr)
self.DeleteTestData(root_key, subkeystr)
def testLocalMachineRegistryWorks(self):
self.TestAll(HKEY_CURRENT_USER)
self.TestAll(HKEY_CURRENT_USER, "日本-subkey")
def testConnectRegistryToLocalMachineWorks(self):
# perform minimal ConnectRegistry test which just invokes it
h = ConnectRegistry(None, HKEY_LOCAL_MACHINE)
h.Close()
def testRemoteMachineRegistryWorks(self):
if not self.remote_name:
return # remote machine name not specified
remote_key = ConnectRegistry(self.remote_name, HKEY_CURRENT_USER)
self.TestAll(remote_key)
def testExpandEnvironmentStrings(self):
r = ExpandEnvironmentStrings("%windir%\\test")
self.assertEqual(type(r), str)
self.assertEqual(r, os.environ["windir"] + "\\test")
def test_main():
support.run_unittest(WinregTests)
if __name__ == "__main__":
try:
WinregTests.remote_name = sys.argv[sys.argv.index("--remote")+1]
except (IndexError, ValueError):
print("Remote registry calls can be tested using",
"'test_winreg.py --remote \\\\machine_name'")
WinregTests.remote_name = None
test_main()
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