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cpython/Lib/test/test_uuid.py

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import unittest
from test import support
from test.support import import_helper
import builtins
import contextlib
import copy
import enum
import io
import os
import pickle
import sys
import weakref
from unittest import mock
py_uuid = import_helper.import_fresh_module('uuid', blocked=['_uuid'])
c_uuid = import_helper.import_fresh_module('uuid', fresh=['_uuid'])
def importable(name):
try:
__import__(name)
return True
except:
return False
def mock_get_command_stdout(data):
def get_command_stdout(command, args):
return io.BytesIO(data.encode())
return get_command_stdout
class BaseTestUUID:
uuid = None
def test_safe_uuid_enum(self):
class CheckedSafeUUID(enum.Enum):
safe = 0
unsafe = -1
unknown = None
enum._test_simple_enum(CheckedSafeUUID, py_uuid.SafeUUID)
def test_UUID(self):
equal = self.assertEqual
ascending = []
for (string, curly, hex, bytes, bytes_le, fields, integer, urn,
time, clock_seq, variant, version) in [
('00000000-0000-0000-0000-000000000000',
'{00000000-0000-0000-0000-000000000000}',
'00000000000000000000000000000000',
b'\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0',
b'\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0',
(0, 0, 0, 0, 0, 0),
0,
'urn:uuid:00000000-0000-0000-0000-000000000000',
0, 0, self.uuid.RESERVED_NCS, None),
('00010203-0405-0607-0809-0a0b0c0d0e0f',
'{00010203-0405-0607-0809-0a0b0c0d0e0f}',
'000102030405060708090a0b0c0d0e0f',
b'\0\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\x0d\x0e\x0f',
b'\x03\x02\x01\0\x05\x04\x07\x06\x08\t\n\x0b\x0c\x0d\x0e\x0f',
(0x00010203, 0x0405, 0x0607, 8, 9, 0x0a0b0c0d0e0f),
0x000102030405060708090a0b0c0d0e0f,
'urn:uuid:00010203-0405-0607-0809-0a0b0c0d0e0f',
0x607040500010203, 0x809, self.uuid.RESERVED_NCS, None),
('02d9e6d5-9467-382e-8f9b-9300a64ac3cd',
'{02d9e6d5-9467-382e-8f9b-9300a64ac3cd}',
'02d9e6d59467382e8f9b9300a64ac3cd',
b'\x02\xd9\xe6\xd5\x94\x67\x38\x2e\x8f\x9b\x93\x00\xa6\x4a\xc3\xcd',
b'\xd5\xe6\xd9\x02\x67\x94\x2e\x38\x8f\x9b\x93\x00\xa6\x4a\xc3\xcd',
(0x02d9e6d5, 0x9467, 0x382e, 0x8f, 0x9b, 0x9300a64ac3cd),
0x02d9e6d59467382e8f9b9300a64ac3cd,
'urn:uuid:02d9e6d5-9467-382e-8f9b-9300a64ac3cd',
0x82e946702d9e6d5, 0xf9b, self.uuid.RFC_4122, 3),
('12345678-1234-5678-1234-567812345678',
'{12345678-1234-5678-1234-567812345678}',
'12345678123456781234567812345678',
b'\x12\x34\x56\x78'*4,
b'\x78\x56\x34\x12\x34\x12\x78\x56\x12\x34\x56\x78\x12\x34\x56\x78',
(0x12345678, 0x1234, 0x5678, 0x12, 0x34, 0x567812345678),
0x12345678123456781234567812345678,
'urn:uuid:12345678-1234-5678-1234-567812345678',
0x678123412345678, 0x1234, self.uuid.RESERVED_NCS, None),
('6ba7b810-9dad-11d1-80b4-00c04fd430c8',
'{6ba7b810-9dad-11d1-80b4-00c04fd430c8}',
'6ba7b8109dad11d180b400c04fd430c8',
b'\x6b\xa7\xb8\x10\x9d\xad\x11\xd1\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
b'\x10\xb8\xa7\x6b\xad\x9d\xd1\x11\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
(0x6ba7b810, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00c04fd430c8),
0x6ba7b8109dad11d180b400c04fd430c8,
'urn:uuid:6ba7b810-9dad-11d1-80b4-00c04fd430c8',
0x1d19dad6ba7b810, 0xb4, self.uuid.RFC_4122, 1),
('6ba7b811-9dad-11d1-80b4-00c04fd430c8',
'{6ba7b811-9dad-11d1-80b4-00c04fd430c8}',
'6ba7b8119dad11d180b400c04fd430c8',
b'\x6b\xa7\xb8\x11\x9d\xad\x11\xd1\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
b'\x11\xb8\xa7\x6b\xad\x9d\xd1\x11\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
(0x6ba7b811, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00c04fd430c8),
0x6ba7b8119dad11d180b400c04fd430c8,
'urn:uuid:6ba7b811-9dad-11d1-80b4-00c04fd430c8',
0x1d19dad6ba7b811, 0xb4, self.uuid.RFC_4122, 1),
('6ba7b812-9dad-11d1-80b4-00c04fd430c8',
'{6ba7b812-9dad-11d1-80b4-00c04fd430c8}',
'6ba7b8129dad11d180b400c04fd430c8',
b'\x6b\xa7\xb8\x12\x9d\xad\x11\xd1\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
b'\x12\xb8\xa7\x6b\xad\x9d\xd1\x11\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
(0x6ba7b812, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00c04fd430c8),
0x6ba7b8129dad11d180b400c04fd430c8,
'urn:uuid:6ba7b812-9dad-11d1-80b4-00c04fd430c8',
0x1d19dad6ba7b812, 0xb4, self.uuid.RFC_4122, 1),
('6ba7b814-9dad-11d1-80b4-00c04fd430c8',
'{6ba7b814-9dad-11d1-80b4-00c04fd430c8}',
'6ba7b8149dad11d180b400c04fd430c8',
b'\x6b\xa7\xb8\x14\x9d\xad\x11\xd1\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
b'\x14\xb8\xa7\x6b\xad\x9d\xd1\x11\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
(0x6ba7b814, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00c04fd430c8),
0x6ba7b8149dad11d180b400c04fd430c8,
'urn:uuid:6ba7b814-9dad-11d1-80b4-00c04fd430c8',
0x1d19dad6ba7b814, 0xb4, self.uuid.RFC_4122, 1),
('7d444840-9dc0-11d1-b245-5ffdce74fad2',
'{7d444840-9dc0-11d1-b245-5ffdce74fad2}',
'7d4448409dc011d1b2455ffdce74fad2',
b'\x7d\x44\x48\x40\x9d\xc0\x11\xd1\xb2\x45\x5f\xfd\xce\x74\xfa\xd2',
b'\x40\x48\x44\x7d\xc0\x9d\xd1\x11\xb2\x45\x5f\xfd\xce\x74\xfa\xd2',
(0x7d444840, 0x9dc0, 0x11d1, 0xb2, 0x45, 0x5ffdce74fad2),
0x7d4448409dc011d1b2455ffdce74fad2,
'urn:uuid:7d444840-9dc0-11d1-b245-5ffdce74fad2',
0x1d19dc07d444840, 0x3245, self.uuid.RFC_4122, 1),
('e902893a-9d22-3c7e-a7b8-d6e313b71d9f',
'{e902893a-9d22-3c7e-a7b8-d6e313b71d9f}',
'e902893a9d223c7ea7b8d6e313b71d9f',
b'\xe9\x02\x89\x3a\x9d\x22\x3c\x7e\xa7\xb8\xd6\xe3\x13\xb7\x1d\x9f',
b'\x3a\x89\x02\xe9\x22\x9d\x7e\x3c\xa7\xb8\xd6\xe3\x13\xb7\x1d\x9f',
(0xe902893a, 0x9d22, 0x3c7e, 0xa7, 0xb8, 0xd6e313b71d9f),
0xe902893a9d223c7ea7b8d6e313b71d9f,
'urn:uuid:e902893a-9d22-3c7e-a7b8-d6e313b71d9f',
0xc7e9d22e902893a, 0x27b8, self.uuid.RFC_4122, 3),
('eb424026-6f54-4ef8-a4d0-bb658a1fc6cf',
'{eb424026-6f54-4ef8-a4d0-bb658a1fc6cf}',
'eb4240266f544ef8a4d0bb658a1fc6cf',
b'\xeb\x42\x40\x26\x6f\x54\x4e\xf8\xa4\xd0\xbb\x65\x8a\x1f\xc6\xcf',
b'\x26\x40\x42\xeb\x54\x6f\xf8\x4e\xa4\xd0\xbb\x65\x8a\x1f\xc6\xcf',
(0xeb424026, 0x6f54, 0x4ef8, 0xa4, 0xd0, 0xbb658a1fc6cf),
0xeb4240266f544ef8a4d0bb658a1fc6cf,
'urn:uuid:eb424026-6f54-4ef8-a4d0-bb658a1fc6cf',
0xef86f54eb424026, 0x24d0, self.uuid.RFC_4122, 4),
('f81d4fae-7dec-11d0-a765-00a0c91e6bf6',
'{f81d4fae-7dec-11d0-a765-00a0c91e6bf6}',
'f81d4fae7dec11d0a76500a0c91e6bf6',
b'\xf8\x1d\x4f\xae\x7d\xec\x11\xd0\xa7\x65\x00\xa0\xc9\x1e\x6b\xf6',
b'\xae\x4f\x1d\xf8\xec\x7d\xd0\x11\xa7\x65\x00\xa0\xc9\x1e\x6b\xf6',
(0xf81d4fae, 0x7dec, 0x11d0, 0xa7, 0x65, 0x00a0c91e6bf6),
0xf81d4fae7dec11d0a76500a0c91e6bf6,
'urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6',
0x1d07decf81d4fae, 0x2765, self.uuid.RFC_4122, 1),
('fffefdfc-fffe-fffe-fffe-fffefdfcfbfa',
'{fffefdfc-fffe-fffe-fffe-fffefdfcfbfa}',
'fffefdfcfffefffefffefffefdfcfbfa',
b'\xff\xfe\xfd\xfc\xff\xfe\xff\xfe\xff\xfe\xff\xfe\xfd\xfc\xfb\xfa',
b'\xfc\xfd\xfe\xff\xfe\xff\xfe\xff\xff\xfe\xff\xfe\xfd\xfc\xfb\xfa',
(0xfffefdfc, 0xfffe, 0xfffe, 0xff, 0xfe, 0xfffefdfcfbfa),
0xfffefdfcfffefffefffefffefdfcfbfa,
'urn:uuid:fffefdfc-fffe-fffe-fffe-fffefdfcfbfa',
0xffefffefffefdfc, 0x3ffe, self.uuid.RESERVED_FUTURE, None),
('ffffffff-ffff-ffff-ffff-ffffffffffff',
'{ffffffff-ffff-ffff-ffff-ffffffffffff}',
'ffffffffffffffffffffffffffffffff',
b'\xff'*16,
b'\xff'*16,
(0xffffffff, 0xffff, 0xffff, 0xff, 0xff, 0xffffffffffff),
0xffffffffffffffffffffffffffffffff,
'urn:uuid:ffffffff-ffff-ffff-ffff-ffffffffffff',
0xfffffffffffffff, 0x3fff, self.uuid.RESERVED_FUTURE, None),
]:
equivalents = []
# Construct each UUID in several different ways.
for u in [self.uuid.UUID(string), self.uuid.UUID(curly), self.uuid.UUID(hex),
self.uuid.UUID(bytes=bytes), self.uuid.UUID(bytes_le=bytes_le),
self.uuid.UUID(fields=fields), self.uuid.UUID(int=integer),
self.uuid.UUID(urn)]:
# Test all conversions and properties of the UUID object.
equal(str(u), string)
equal(int(u), integer)
equal(u.bytes, bytes)
equal(u.bytes_le, bytes_le)
equal(u.fields, fields)
equal(u.time_low, fields[0])
equal(u.time_mid, fields[1])
equal(u.time_hi_version, fields[2])
equal(u.clock_seq_hi_variant, fields[3])
equal(u.clock_seq_low, fields[4])
equal(u.node, fields[5])
equal(u.hex, hex)
equal(u.int, integer)
equal(u.urn, urn)
equal(u.time, time)
equal(u.clock_seq, clock_seq)
equal(u.variant, variant)
equal(u.version, version)
equivalents.append(u)
# Different construction methods should give the same UUID.
for u in equivalents:
for v in equivalents:
equal(u, v)
# Bug 7380: "bytes" and "bytes_le" should give the same type.
equal(type(u.bytes), builtins.bytes)
equal(type(u.bytes_le), builtins.bytes)
ascending.append(u)
# Test comparison of UUIDs.
for i in range(len(ascending)):
for j in range(len(ascending)):
equal(i < j, ascending[i] < ascending[j])
equal(i <= j, ascending[i] <= ascending[j])
equal(i == j, ascending[i] == ascending[j])
equal(i > j, ascending[i] > ascending[j])
equal(i >= j, ascending[i] >= ascending[j])
equal(i != j, ascending[i] != ascending[j])
# Test sorting of UUIDs (above list is in ascending order).
resorted = ascending[:]
resorted.reverse()
resorted.sort()
equal(ascending, resorted)
def test_exceptions(self):
badvalue = lambda f: self.assertRaises(ValueError, f)
badtype = lambda f: self.assertRaises(TypeError, f)
# Badly formed hex strings.
badvalue(lambda: self.uuid.UUID(''))
badvalue(lambda: self.uuid.UUID('abc'))
badvalue(lambda: self.uuid.UUID('1234567812345678123456781234567'))
badvalue(lambda: self.uuid.UUID('123456781234567812345678123456789'))
badvalue(lambda: self.uuid.UUID('123456781234567812345678z2345678'))
# Badly formed bytes.
badvalue(lambda: self.uuid.UUID(bytes='abc'))
badvalue(lambda: self.uuid.UUID(bytes='\0'*15))
badvalue(lambda: self.uuid.UUID(bytes='\0'*17))
# Badly formed bytes_le.
badvalue(lambda: self.uuid.UUID(bytes_le='abc'))
badvalue(lambda: self.uuid.UUID(bytes_le='\0'*15))
badvalue(lambda: self.uuid.UUID(bytes_le='\0'*17))
# Badly formed fields.
badvalue(lambda: self.uuid.UUID(fields=(1,)))
badvalue(lambda: self.uuid.UUID(fields=(1, 2, 3, 4, 5)))
badvalue(lambda: self.uuid.UUID(fields=(1, 2, 3, 4, 5, 6, 7)))
# Field values out of range.
badvalue(lambda: self.uuid.UUID(fields=(-1, 0, 0, 0, 0, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0x100000000, 0, 0, 0, 0, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, -1, 0, 0, 0, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0x10000, 0, 0, 0, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0, -1, 0, 0, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0, 0x10000, 0, 0, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0, 0, -1, 0, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0, 0, 0x100, 0, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0, 0, 0, -1, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0, 0, 0, 0x100, 0)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0, 0, 0, 0, -1)))
badvalue(lambda: self.uuid.UUID(fields=(0, 0, 0, 0, 0, 0x1000000000000)))
# Version number out of range.
badvalue(lambda: self.uuid.UUID('00'*16, version=0))
badvalue(lambda: self.uuid.UUID('00'*16, version=6))
# Integer value out of range.
badvalue(lambda: self.uuid.UUID(int=-1))
badvalue(lambda: self.uuid.UUID(int=1<<128))
# Must supply exactly one of hex, bytes, fields, int.
h, b, f, i = '00'*16, b'\0'*16, (0, 0, 0, 0, 0, 0), 0
self.uuid.UUID(h)
self.uuid.UUID(hex=h)
self.uuid.UUID(bytes=b)
self.uuid.UUID(bytes_le=b)
self.uuid.UUID(fields=f)
self.uuid.UUID(int=i)
# Wrong number of arguments (positional).
badtype(lambda: self.uuid.UUID())
badtype(lambda: self.uuid.UUID(h, b))
badtype(lambda: self.uuid.UUID(h, b, b))
badtype(lambda: self.uuid.UUID(h, b, b, f))
badtype(lambda: self.uuid.UUID(h, b, b, f, i))
# Duplicate arguments.
for hh in [[], [('hex', h)]]:
for bb in [[], [('bytes', b)]]:
for bble in [[], [('bytes_le', b)]]:
for ii in [[], [('int', i)]]:
for ff in [[], [('fields', f)]]:
args = dict(hh + bb + bble + ii + ff)
if len(args) != 0:
badtype(lambda: self.uuid.UUID(h, **args))
if len(args) != 1:
badtype(lambda: self.uuid.UUID(**args))
# Immutability.
u = self.uuid.UUID(h)
badtype(lambda: setattr(u, 'hex', h))
badtype(lambda: setattr(u, 'bytes', b))
badtype(lambda: setattr(u, 'bytes_le', b))
badtype(lambda: setattr(u, 'fields', f))
badtype(lambda: setattr(u, 'int', i))
badtype(lambda: setattr(u, 'time_low', 0))
badtype(lambda: setattr(u, 'time_mid', 0))
badtype(lambda: setattr(u, 'time_hi_version', 0))
badtype(lambda: setattr(u, 'time_hi_version', 0))
badtype(lambda: setattr(u, 'clock_seq_hi_variant', 0))
badtype(lambda: setattr(u, 'clock_seq_low', 0))
badtype(lambda: setattr(u, 'node', 0))
# Comparison with a non-UUID object
badtype(lambda: u < object())
badtype(lambda: u > object())
def test_getnode(self):
node1 = self.uuid.getnode()
self.assertTrue(0 < node1 < (1 << 48), '%012x' % node1)
# Test it again to ensure consistency.
node2 = self.uuid.getnode()
self.assertEqual(node1, node2, '%012x != %012x' % (node1, node2))
def test_pickle_roundtrip(self):
def check(actual, expected):
self.assertEqual(actual, expected)
self.assertEqual(actual.is_safe, expected.is_safe)
with support.swap_item(sys.modules, 'uuid', self.uuid):
for is_safe in self.uuid.SafeUUID:
u = self.uuid.UUID('d82579ce6642a0de7ddf490a7aec7aa5',
is_safe=is_safe)
check(copy.copy(u), u)
check(copy.deepcopy(u), u)
for proto in range(pickle.HIGHEST_PROTOCOL + 1):
with self.subTest(protocol=proto):
check(pickle.loads(pickle.dumps(u, proto)), u)
def test_unpickle_previous_python_versions(self):
def check(actual, expected):
self.assertEqual(actual, expected)
self.assertEqual(actual.is_safe, expected.is_safe)
pickled_uuids = [
# Python 2.7, protocol 0
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR(dS\'int\'\nL287307832597519156748809049798316161701L\nsb.',
# Python 2.7, protocol 1
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR}U\x03intL287307832597519156748809049798316161701L\nsb.',
# Python 2.7, protocol 2
b'\x80\x02cuuid\nUUID\n)\x81}U\x03int\x8a\x11\xa5z\xecz\nI\xdf}'
b'\xde\xa0Bf\xcey%\xd8\x00sb.',
# Python 3.6, protocol 0
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR(dVint\nL287307832597519156748809049798316161701L\nsb.',
# Python 3.6, protocol 1
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR}X\x03\x00\x00\x00intL287307832597519156748809049798316161701L'
b'\nsb.',
# Python 3.6, protocol 2
b'\x80\x02cuuid\nUUID\n)\x81}X\x03\x00\x00\x00int\x8a\x11\xa5z\xec'
b'z\nI\xdf}\xde\xa0Bf\xcey%\xd8\x00sb.',
# Python 3.6, protocol 3
b'\x80\x03cuuid\nUUID\n)\x81}X\x03\x00\x00\x00int\x8a\x11\xa5z\xec'
b'z\nI\xdf}\xde\xa0Bf\xcey%\xd8\x00sb.',
# Python 3.6, protocol 4
b'\x80\x04\x95+\x00\x00\x00\x00\x00\x00\x00\x8c\x04uuid\x8c\x04UUI'
b'D\x93)\x81}\x8c\x03int\x8a\x11\xa5z\xecz\nI\xdf}\xde\xa0Bf\xcey%'
b'\xd8\x00sb.',
# Python 3.7, protocol 0
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR(dVint\nL287307832597519156748809049798316161701L\nsVis_safe\n'
b'cuuid\nSafeUUID\n(NtRsb.',
# Python 3.7, protocol 1
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR}(X\x03\x00\x00\x00intL287307832597519156748809049798316161701'
b'L\nX\x07\x00\x00\x00is_safecuuid\nSafeUUID\n(NtRub.',
# Python 3.7, protocol 2
b'\x80\x02cuuid\nUUID\n)\x81}(X\x03\x00\x00\x00int\x8a\x11\xa5z'
b'\xecz\nI\xdf}\xde\xa0Bf\xcey%\xd8\x00X\x07\x00\x00\x00is_safecuu'
b'id\nSafeUUID\nN\x85Rub.',
# Python 3.7, protocol 3
b'\x80\x03cuuid\nUUID\n)\x81}(X\x03\x00\x00\x00int\x8a\x11\xa5z'
b'\xecz\nI\xdf}\xde\xa0Bf\xcey%\xd8\x00X\x07\x00\x00\x00is_safecuu'
b'id\nSafeUUID\nN\x85Rub.',
# Python 3.7, protocol 4
b'\x80\x04\x95F\x00\x00\x00\x00\x00\x00\x00\x8c\x04uuid\x94\x8c'
b'\x04UUID\x93)\x81}(\x8c\x03int\x8a\x11\xa5z\xecz\nI\xdf}\xde\xa0'
b'Bf\xcey%\xd8\x00\x8c\x07is_safeh\x00\x8c\x08SafeUUID\x93N\x85Rub'
b'.',
]
pickled_uuids_safe = [
# Python 3.7, protocol 0
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR(dVint\nL287307832597519156748809049798316161701L\nsVis_safe\n'
b'cuuid\nSafeUUID\n(I0\ntRsb.',
# Python 3.7, protocol 1
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR}(X\x03\x00\x00\x00intL287307832597519156748809049798316161701'
b'L\nX\x07\x00\x00\x00is_safecuuid\nSafeUUID\n(K\x00tRub.',
# Python 3.7, protocol 2
b'\x80\x02cuuid\nUUID\n)\x81}(X\x03\x00\x00\x00int\x8a\x11\xa5z'
b'\xecz\nI\xdf}\xde\xa0Bf\xcey%\xd8\x00X\x07\x00\x00\x00is_safecuu'
b'id\nSafeUUID\nK\x00\x85Rub.',
# Python 3.7, protocol 3
b'\x80\x03cuuid\nUUID\n)\x81}(X\x03\x00\x00\x00int\x8a\x11\xa5z'
b'\xecz\nI\xdf}\xde\xa0Bf\xcey%\xd8\x00X\x07\x00\x00\x00is_safecuu'
b'id\nSafeUUID\nK\x00\x85Rub.',
# Python 3.7, protocol 4
b'\x80\x04\x95G\x00\x00\x00\x00\x00\x00\x00\x8c\x04uuid\x94\x8c'
b'\x04UUID\x93)\x81}(\x8c\x03int\x8a\x11\xa5z\xecz\nI\xdf}\xde\xa0'
b'Bf\xcey%\xd8\x00\x8c\x07is_safeh\x00\x8c\x08SafeUUID\x93K\x00'
b'\x85Rub.',
]
pickled_uuids_unsafe = [
# Python 3.7, protocol 0
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR(dVint\nL287307832597519156748809049798316161701L\nsVis_safe\n'
b'cuuid\nSafeUUID\n(I-1\ntRsb.',
# Python 3.7, protocol 1
b'ccopy_reg\n_reconstructor\n(cuuid\nUUID\nc__builtin__\nobject\nN'
b'tR}(X\x03\x00\x00\x00intL287307832597519156748809049798316161701'
b'L\nX\x07\x00\x00\x00is_safecuuid\nSafeUUID\n(J\xff\xff\xff\xfftR'
b'ub.',
# Python 3.7, protocol 2
b'\x80\x02cuuid\nUUID\n)\x81}(X\x03\x00\x00\x00int\x8a\x11\xa5z'
b'\xecz\nI\xdf}\xde\xa0Bf\xcey%\xd8\x00X\x07\x00\x00\x00is_safecuu'
b'id\nSafeUUID\nJ\xff\xff\xff\xff\x85Rub.',
# Python 3.7, protocol 3
b'\x80\x03cuuid\nUUID\n)\x81}(X\x03\x00\x00\x00int\x8a\x11\xa5z'
b'\xecz\nI\xdf}\xde\xa0Bf\xcey%\xd8\x00X\x07\x00\x00\x00is_safecuu'
b'id\nSafeUUID\nJ\xff\xff\xff\xff\x85Rub.',
# Python 3.7, protocol 4
b'\x80\x04\x95J\x00\x00\x00\x00\x00\x00\x00\x8c\x04uuid\x94\x8c'
b'\x04UUID\x93)\x81}(\x8c\x03int\x8a\x11\xa5z\xecz\nI\xdf}\xde\xa0'
b'Bf\xcey%\xd8\x00\x8c\x07is_safeh\x00\x8c\x08SafeUUID\x93J\xff'
b'\xff\xff\xff\x85Rub.',
]
u = self.uuid.UUID('d82579ce6642a0de7ddf490a7aec7aa5')
u_safe = self.uuid.UUID('d82579ce6642a0de7ddf490a7aec7aa5',
is_safe=self.uuid.SafeUUID.safe)
u_unsafe = self.uuid.UUID('d82579ce6642a0de7ddf490a7aec7aa5',
is_safe=self.uuid.SafeUUID.unsafe)
with support.swap_item(sys.modules, 'uuid', self.uuid):
for pickled in pickled_uuids:
# is_safe was added in 3.7. When unpickling values from older
# versions, is_safe will be missing, so it should be set to
# SafeUUID.unknown.
check(pickle.loads(pickled), u)
for pickled in pickled_uuids_safe:
check(pickle.loads(pickled), u_safe)
for pickled in pickled_uuids_unsafe:
check(pickle.loads(pickled), u_unsafe)
# bpo-32502: UUID1 requires a 48-bit identifier, but hardware identifiers
# need not necessarily be 48 bits (e.g., EUI-64).
def test_uuid1_eui64(self):
# Confirm that uuid.getnode ignores hardware addresses larger than 48
# bits. Mock out each platform's *_getnode helper functions to return
# something just larger than 48 bits to test. This will cause
# uuid.getnode to fall back on uuid._random_getnode, which will
# generate a valid value.
too_large_getter = lambda: 1 << 48
with mock.patch.multiple(
self.uuid,
_node=None, # Ignore any cached node value.
_GETTERS=[too_large_getter],
):
node = self.uuid.getnode()
self.assertTrue(0 < node < (1 << 48), '%012x' % node)
# Confirm that uuid1 can use the generated node, i.e., the that
# uuid.getnode fell back on uuid._random_getnode() rather than using
# the value from too_large_getter above.
try:
self.uuid.uuid1(node=node)
except ValueError:
self.fail('uuid1 was given an invalid node ID')
def test_uuid1(self):
equal = self.assertEqual
# Make sure uuid1() generates UUIDs that are actually version 1.
for u in [self.uuid.uuid1() for i in range(10)]:
equal(u.variant, self.uuid.RFC_4122)
equal(u.version, 1)
self.assertIn(u.is_safe, {self.uuid.SafeUUID.safe,
self.uuid.SafeUUID.unsafe,
self.uuid.SafeUUID.unknown})
# Make sure the generated UUIDs are actually unique.
uuids = {}
for u in [self.uuid.uuid1() for i in range(1000)]:
uuids[u] = 1
equal(len(uuids.keys()), 1000)
# Make sure the supplied node ID appears in the UUID.
u = self.uuid.uuid1(0)
equal(u.node, 0)
u = self.uuid.uuid1(0x123456789abc)
equal(u.node, 0x123456789abc)
u = self.uuid.uuid1(0xffffffffffff)
equal(u.node, 0xffffffffffff)
# Make sure the supplied clock sequence appears in the UUID.
u = self.uuid.uuid1(0x123456789abc, 0)
equal(u.node, 0x123456789abc)
equal(((u.clock_seq_hi_variant & 0x3f) << 8) | u.clock_seq_low, 0)
u = self.uuid.uuid1(0x123456789abc, 0x1234)
equal(u.node, 0x123456789abc)
equal(((u.clock_seq_hi_variant & 0x3f) << 8) |
u.clock_seq_low, 0x1234)
u = self.uuid.uuid1(0x123456789abc, 0x3fff)
equal(u.node, 0x123456789abc)
equal(((u.clock_seq_hi_variant & 0x3f) << 8) |
u.clock_seq_low, 0x3fff)
# bpo-29925: On Mac OS X Tiger, self.uuid.uuid1().is_safe returns
# self.uuid.SafeUUID.unknown
@support.requires_mac_ver(10, 5)
@unittest.skipUnless(os.name == 'posix', 'POSIX-only test')
def test_uuid1_safe(self):
try:
import _uuid
except ImportError:
has_uuid_generate_time_safe = False
else:
has_uuid_generate_time_safe = _uuid.has_uuid_generate_time_safe
if not has_uuid_generate_time_safe or not self.uuid._generate_time_safe:
self.skipTest('requires uuid_generate_time_safe(3)')
u = self.uuid.uuid1()
# uuid_generate_time_safe() may return 0 or -1 but what it returns is
# dependent on the underlying platform support. At least it cannot be
# unknown (unless I suppose the platform is buggy).
self.assertNotEqual(u.is_safe, self.uuid.SafeUUID.unknown)
@contextlib.contextmanager
def mock_generate_time_safe(self, safe_value):
"""
Mock uuid._generate_time_safe() to return a given *safe_value*.
"""
if os.name != 'posix':
self.skipTest('POSIX-only test')
f = self.uuid._generate_time_safe
if f is None:
self.skipTest('need uuid._generate_time_safe')
with mock.patch.object(self.uuid, '_generate_time_safe',
lambda: (f()[0], safe_value)):
yield
@unittest.skipUnless(os.name == 'posix', 'POSIX-only test')
def test_uuid1_unknown(self):
# Even if the platform has uuid_generate_time_safe(), let's mock it to
# be uuid_generate_time() and ensure the safety is unknown.
with self.mock_generate_time_safe(None):
u = self.uuid.uuid1()
self.assertEqual(u.is_safe, self.uuid.SafeUUID.unknown)
@unittest.skipUnless(os.name == 'posix', 'POSIX-only test')
def test_uuid1_is_safe(self):
with self.mock_generate_time_safe(0):
u = self.uuid.uuid1()
self.assertEqual(u.is_safe, self.uuid.SafeUUID.safe)
@unittest.skipUnless(os.name == 'posix', 'POSIX-only test')
def test_uuid1_is_unsafe(self):
with self.mock_generate_time_safe(-1):
u = self.uuid.uuid1()
self.assertEqual(u.is_safe, self.uuid.SafeUUID.unsafe)
@unittest.skipUnless(os.name == 'posix', 'POSIX-only test')
def test_uuid1_bogus_return_value(self):
with self.mock_generate_time_safe(3):
u = self.uuid.uuid1()
self.assertEqual(u.is_safe, self.uuid.SafeUUID.unknown)
def test_uuid1_time(self):
with mock.patch.object(self.uuid, '_generate_time_safe', None), \
mock.patch.object(self.uuid, '_last_timestamp', None), \
mock.patch.object(self.uuid, 'getnode', return_value=93328246233727), \
mock.patch('time.time_ns', return_value=1545052026752910643), \
mock.patch('random.getrandbits', return_value=5317): # guaranteed to be random
u = self.uuid.uuid1()
self.assertEqual(u, self.uuid.UUID('a7a55b92-01fc-11e9-94c5-54e1acf6da7f'))
with mock.patch.object(self.uuid, '_generate_time_safe', None), \
mock.patch.object(self.uuid, '_last_timestamp', None), \
mock.patch('time.time_ns', return_value=1545052026752910643):
u = self.uuid.uuid1(node=93328246233727, clock_seq=5317)
self.assertEqual(u, self.uuid.UUID('a7a55b92-01fc-11e9-94c5-54e1acf6da7f'))
def test_uuid3(self):
equal = self.assertEqual
# Test some known version-3 UUIDs with name passed as a byte object
for u, v in [(self.uuid.uuid3(self.uuid.NAMESPACE_DNS, b'python.org'),
'6fa459ea-ee8a-3ca4-894e-db77e160355e'),
(self.uuid.uuid3(self.uuid.NAMESPACE_URL, b'http://python.org/'),
'9fe8e8c4-aaa8-32a9-a55c-4535a88b748d'),
(self.uuid.uuid3(self.uuid.NAMESPACE_OID, b'1.3.6.1'),
'dd1a1cef-13d5-368a-ad82-eca71acd4cd1'),
(self.uuid.uuid3(self.uuid.NAMESPACE_X500, b'c=ca'),
'658d3002-db6b-3040-a1d1-8ddd7d189a4d'),
]:
equal(u.variant, self.uuid.RFC_4122)
equal(u.version, 3)
equal(u, self.uuid.UUID(v))
equal(str(u), v)
# Test some known version-3 UUIDs with name passed as a string
for u, v in [(self.uuid.uuid3(self.uuid.NAMESPACE_DNS, 'python.org'),
'6fa459ea-ee8a-3ca4-894e-db77e160355e'),
(self.uuid.uuid3(self.uuid.NAMESPACE_URL, 'http://python.org/'),
'9fe8e8c4-aaa8-32a9-a55c-4535a88b748d'),
(self.uuid.uuid3(self.uuid.NAMESPACE_OID, '1.3.6.1'),
'dd1a1cef-13d5-368a-ad82-eca71acd4cd1'),
(self.uuid.uuid3(self.uuid.NAMESPACE_X500, 'c=ca'),
'658d3002-db6b-3040-a1d1-8ddd7d189a4d'),
]:
equal(u.variant, self.uuid.RFC_4122)
equal(u.version, 3)
equal(u, self.uuid.UUID(v))
equal(str(u), v)
def test_uuid4(self):
equal = self.assertEqual
# Make sure uuid4() generates UUIDs that are actually version 4.
for u in [self.uuid.uuid4() for i in range(10)]:
equal(u.variant, self.uuid.RFC_4122)
equal(u.version, 4)
# Make sure the generated UUIDs are actually unique.
uuids = {}
for u in [self.uuid.uuid4() for i in range(1000)]:
uuids[u] = 1
equal(len(uuids.keys()), 1000)
def test_uuid5(self):
equal = self.assertEqual
# Test some known version-5 UUIDs with names given as byte objects
for u, v in [(self.uuid.uuid5(self.uuid.NAMESPACE_DNS, b'python.org'),
'886313e1-3b8a-5372-9b90-0c9aee199e5d'),
(self.uuid.uuid5(self.uuid.NAMESPACE_URL, b'http://python.org/'),
'4c565f0d-3f5a-5890-b41b-20cf47701c5e'),
(self.uuid.uuid5(self.uuid.NAMESPACE_OID, b'1.3.6.1'),
'1447fa61-5277-5fef-a9b3-fbc6e44f4af3'),
(self.uuid.uuid5(self.uuid.NAMESPACE_X500, b'c=ca'),
'cc957dd1-a972-5349-98cd-874190002798'),
]:
equal(u.variant, self.uuid.RFC_4122)
equal(u.version, 5)
equal(u, self.uuid.UUID(v))
equal(str(u), v)
# Test some known version-5 UUIDs with names given as strings
for u, v in [(self.uuid.uuid5(self.uuid.NAMESPACE_DNS, 'python.org'),
'886313e1-3b8a-5372-9b90-0c9aee199e5d'),
(self.uuid.uuid5(self.uuid.NAMESPACE_URL, 'http://python.org/'),
'4c565f0d-3f5a-5890-b41b-20cf47701c5e'),
(self.uuid.uuid5(self.uuid.NAMESPACE_OID, '1.3.6.1'),
'1447fa61-5277-5fef-a9b3-fbc6e44f4af3'),
(self.uuid.uuid5(self.uuid.NAMESPACE_X500, 'c=ca'),
'cc957dd1-a972-5349-98cd-874190002798'),
]:
equal(u.variant, self.uuid.RFC_4122)
equal(u.version, 5)
equal(u, self.uuid.UUID(v))
equal(str(u), v)
@support.requires_fork()
def testIssue8621(self):
# On at least some versions of OSX self.uuid.uuid4 generates
# the same sequence of UUIDs in the parent and any
# children started using fork.
fds = os.pipe()
pid = os.fork()
if pid == 0:
os.close(fds[0])
value = self.uuid.uuid4()
os.write(fds[1], value.hex.encode('latin-1'))
os._exit(0)
else:
os.close(fds[1])
self.addCleanup(os.close, fds[0])
parent_value = self.uuid.uuid4().hex
support.wait_process(pid, exitcode=0)
child_value = os.read(fds[0], 100).decode('latin-1')
self.assertNotEqual(parent_value, child_value)
def test_uuid_weakref(self):
# bpo-35701: check that weak referencing to a UUID object can be created
strong = self.uuid.uuid4()
weak = weakref.ref(strong)
self.assertIs(strong, weak())
@mock.patch.object(sys, "argv", ["", "-u", "uuid3", "-n", "@dns"])
@mock.patch('sys.stderr', new_callable=io.StringIO)
def test_cli_namespace_required_for_uuid3(self, mock_err):
with self.assertRaises(SystemExit) as cm:
self.uuid.main()
# Check that exception code is the same as argparse.ArgumentParser.error
self.assertEqual(cm.exception.code, 2)
self.assertIn("error: Incorrect number of arguments", mock_err.getvalue())
@mock.patch.object(sys, "argv", ["", "-u", "uuid3", "-N", "python.org"])
@mock.patch('sys.stderr', new_callable=io.StringIO)
def test_cli_name_required_for_uuid3(self, mock_err):
with self.assertRaises(SystemExit) as cm:
self.uuid.main()
# Check that exception code is the same as argparse.ArgumentParser.error
self.assertEqual(cm.exception.code, 2)
self.assertIn("error: Incorrect number of arguments", mock_err.getvalue())
@mock.patch.object(sys, "argv", [""])
def test_cli_uuid4_outputted_with_no_args(self):
stdout = io.StringIO()
with contextlib.redirect_stdout(stdout):
self.uuid.main()
output = stdout.getvalue().strip()
uuid_output = self.uuid.UUID(output)
# Output uuid should be in the format of uuid4
self.assertEqual(output, str(uuid_output))
self.assertEqual(uuid_output.version, 4)
@mock.patch.object(sys, "argv",
["", "-u", "uuid3", "-n", "@dns", "-N", "python.org"])
def test_cli_uuid3_ouputted_with_valid_namespace_and_name(self):
stdout = io.StringIO()
with contextlib.redirect_stdout(stdout):
self.uuid.main()
output = stdout.getvalue().strip()
uuid_output = self.uuid.UUID(output)
# Output should be in the form of uuid5
self.assertEqual(output, str(uuid_output))
self.assertEqual(uuid_output.version, 3)
@mock.patch.object(sys, "argv",
["", "-u", "uuid5", "-n", "@dns", "-N", "python.org"])
def test_cli_uuid5_ouputted_with_valid_namespace_and_name(self):
stdout = io.StringIO()
with contextlib.redirect_stdout(stdout):
self.uuid.main()
output = stdout.getvalue().strip()
uuid_output = self.uuid.UUID(output)
# Output should be in the form of uuid5
self.assertEqual(output, str(uuid_output))
self.assertEqual(uuid_output.version, 5)
class TestUUIDWithoutExtModule(BaseTestUUID, unittest.TestCase):
uuid = py_uuid
@unittest.skipUnless(c_uuid, 'requires the C _uuid module')
class TestUUIDWithExtModule(BaseTestUUID, unittest.TestCase):
uuid = c_uuid
class BaseTestInternals:
_uuid = py_uuid
def check_parse_mac(self, aix):
if not aix:
patch = mock.patch.multiple(self.uuid,
_MAC_DELIM=b':',
_MAC_OMITS_LEADING_ZEROES=False)
else:
patch = mock.patch.multiple(self.uuid,
_MAC_DELIM=b'.',
_MAC_OMITS_LEADING_ZEROES=True)
with patch:
# Valid MAC addresses
if not aix:
tests = (
(b'52:54:00:9d:0e:67', 0x5254009d0e67),
(b'12:34:56:78:90:ab', 0x1234567890ab),
)
else:
# AIX format
tests = (
(b'fe.ad.c.1.23.4', 0xfead0c012304),
)
for mac, expected in tests:
self.assertEqual(self.uuid._parse_mac(mac), expected)
# Invalid MAC addresses
for mac in (
b'',
# IPv6 addresses with same length than valid MAC address
# (17 characters)
b'fe80::5054:ff:fe9',
b'123:2:3:4:5:6:7:8',
# empty 5rd field
b'52:54:00:9d::67',
# only 5 fields instead of 6
b'52:54:00:9d:0e'
# invalid character 'x'
b'52:54:00:9d:0e:6x'
# dash separator
b'52-54-00-9d-0e-67',
):
if aix:
mac = mac.replace(b':', b'.')
with self.subTest(mac=mac):
self.assertIsNone(self.uuid._parse_mac(mac))
def test_parse_mac(self):
self.check_parse_mac(False)
def test_parse_mac_aix(self):
self.check_parse_mac(True)
def test_find_under_heading(self):
data = '''\
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll
en0 1500 link#2 fe.ad.c.1.23.4 1714807956 0 711348489 0 0
01:00:5e:00:00:01
en0 1500 192.168.129 x071 1714807956 0 711348489 0 0
224.0.0.1
en0 1500 192.168.90 x071 1714807956 0 711348489 0 0
224.0.0.1
'''
# The above data is from AIX - with '.' as _MAC_DELIM and strings
# shorter than 17 bytes (no leading 0). (_MAC_OMITS_LEADING_ZEROES=True)
with mock.patch.multiple(self.uuid,
_MAC_DELIM=b'.',
_MAC_OMITS_LEADING_ZEROES=True,
_get_command_stdout=mock_get_command_stdout(data)):
mac = self.uuid._find_mac_under_heading(
command='netstat',
args='-ian',
heading=b'Address',
)
self.assertEqual(mac, 0xfead0c012304)
def test_find_under_heading_ipv6(self):
# bpo-39991: IPv6 address "fe80::5054:ff:fe9" looks like a MAC address
# (same string length) but must be skipped
data = '''\
Name Mtu Network Address Ipkts Ierrs Idrop Opkts Oerrs Coll
vtnet 1500 <Link#1> 52:54:00:9d:0e:67 10017 0 0 8174 0 0
vtnet - fe80::%vtnet0 fe80::5054:ff:fe9 0 - - 4 - -
vtnet - 192.168.122.0 192.168.122.45 8844 - - 8171 - -
lo0 16384 <Link#2> lo0 260148 0 0 260148 0 0
lo0 - ::1/128 ::1 193 - - 193 - -
ff01::1%lo0
ff02::2:2eb7:74fa
ff02::2:ff2e:b774
ff02::1%lo0
ff02::1:ff00:1%lo
lo0 - fe80::%lo0/64 fe80::1%lo0 0 - - 0 - -
ff01::1%lo0
ff02::2:2eb7:74fa
ff02::2:ff2e:b774
ff02::1%lo0
ff02::1:ff00:1%lo
lo0 - 127.0.0.0/8 127.0.0.1 259955 - - 259955 - -
224.0.0.1
'''
with mock.patch.multiple(self.uuid,
_MAC_DELIM=b':',
_MAC_OMITS_LEADING_ZEROES=False,
_get_command_stdout=mock_get_command_stdout(data)):
mac = self.uuid._find_mac_under_heading(
command='netstat',
args='-ian',
heading=b'Address',
)
self.assertEqual(mac, 0x5254009d0e67)
def test_find_mac_near_keyword(self):
# key and value are on the same line
data = '''
fake Link encap:UNSPEC hwaddr 00-00
cscotun0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
eth0 Link encap:Ethernet HWaddr 12:34:56:78:90:ab
'''
# The above data will only be parsed properly on non-AIX unixes.
with mock.patch.multiple(self.uuid,
_MAC_DELIM=b':',
_MAC_OMITS_LEADING_ZEROES=False,
_get_command_stdout=mock_get_command_stdout(data)):
mac = self.uuid._find_mac_near_keyword(
command='ifconfig',
args='',
keywords=[b'hwaddr'],
get_word_index=lambda x: x + 1,
)
self.assertEqual(mac, 0x1234567890ab)
def check_node(self, node, requires=None):
if requires and node is None:
self.skipTest('requires ' + requires)
hex = '%012x' % node
if support.verbose >= 2:
print(hex, end=' ')
self.assertTrue(0 < node < (1 << 48),
"%s is not an RFC 4122 node ID" % hex)
@unittest.skipUnless(_uuid._ifconfig_getnode in _uuid._GETTERS,
"ifconfig is not used for introspection on this platform")
def test_ifconfig_getnode(self):
node = self.uuid._ifconfig_getnode()
self.check_node(node, 'ifconfig')
@unittest.skipUnless(_uuid._ip_getnode in _uuid._GETTERS,
"ip is not used for introspection on this platform")
def test_ip_getnode(self):
node = self.uuid._ip_getnode()
self.check_node(node, 'ip')
@unittest.skipUnless(_uuid._arp_getnode in _uuid._GETTERS,
"arp is not used for introspection on this platform")
def test_arp_getnode(self):
node = self.uuid._arp_getnode()
self.check_node(node, 'arp')
@unittest.skipUnless(_uuid._lanscan_getnode in _uuid._GETTERS,
"lanscan is not used for introspection on this platform")
def test_lanscan_getnode(self):
node = self.uuid._lanscan_getnode()
self.check_node(node, 'lanscan')
@unittest.skipUnless(_uuid._netstat_getnode in _uuid._GETTERS,
"netstat is not used for introspection on this platform")
def test_netstat_getnode(self):
node = self.uuid._netstat_getnode()
self.check_node(node, 'netstat')
def test_random_getnode(self):
node = self.uuid._random_getnode()
# The multicast bit, i.e. the least significant bit of first octet,
# must be set for randomly generated MAC addresses. See RFC 4122,
# $4.1.6.
self.assertTrue(node & (1 << 40), '%012x' % node)
self.check_node(node)
node2 = self.uuid._random_getnode()
self.assertNotEqual(node2, node, '%012x' % node)
class TestInternalsWithoutExtModule(BaseTestInternals, unittest.TestCase):
uuid = py_uuid
@unittest.skipUnless(c_uuid, 'requires the C _uuid module')
class TestInternalsWithExtModule(BaseTestInternals, unittest.TestCase):
uuid = c_uuid
@unittest.skipUnless(os.name == 'posix', 'requires Posix')
def test_unix_getnode(self):
if not importable('_uuid') and not importable('ctypes'):
self.skipTest("neither _uuid extension nor ctypes available")
try: # Issues 1481, 3581: _uuid_generate_time() might be None.
node = self.uuid._unix_getnode()
except TypeError:
self.skipTest('requires uuid_generate_time')
self.check_node(node, 'unix')
@unittest.skipUnless(os.name == 'nt', 'requires Windows')
def test_windll_getnode(self):
node = self.uuid._windll_getnode()
self.check_node(node)
if __name__ == '__main__':
unittest.main()
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