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cpython/Lib/test/test_uuid.py

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import unittest.mock
from test import support
import builtins
import io
import os
import shutil
import subprocess
import uuid
def importable(name):
try:
__import__(name)
return True
except:
return False
class TestUUID(unittest.TestCase):
last_node = None
source2node = {}
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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, 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, uuid.RESERVED_FUTURE, None),
]:
equivalents = []
# Construct each UUID in several different ways.
for u in [uuid.UUID(string), uuid.UUID(curly), uuid.UUID(hex),
uuid.UUID(bytes=bytes), uuid.UUID(bytes_le=bytes_le),
uuid.UUID(fields=fields), uuid.UUID(int=integer),
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: uuid.UUID(''))
badvalue(lambda: uuid.UUID('abc'))
badvalue(lambda: uuid.UUID('1234567812345678123456781234567'))
badvalue(lambda: uuid.UUID('123456781234567812345678123456789'))
badvalue(lambda: uuid.UUID('123456781234567812345678z2345678'))
# Badly formed bytes.
badvalue(lambda: uuid.UUID(bytes='abc'))
badvalue(lambda: uuid.UUID(bytes='\0'*15))
badvalue(lambda: uuid.UUID(bytes='\0'*17))
# Badly formed bytes_le.
badvalue(lambda: uuid.UUID(bytes_le='abc'))
badvalue(lambda: uuid.UUID(bytes_le='\0'*15))
badvalue(lambda: uuid.UUID(bytes_le='\0'*17))
# Badly formed fields.
badvalue(lambda: uuid.UUID(fields=(1,)))
badvalue(lambda: uuid.UUID(fields=(1, 2, 3, 4, 5)))
badvalue(lambda: uuid.UUID(fields=(1, 2, 3, 4, 5, 6, 7)))
# Field values out of range.
badvalue(lambda: uuid.UUID(fields=(-1, 0, 0, 0, 0, 0)))
badvalue(lambda: uuid.UUID(fields=(0x100000000, 0, 0, 0, 0, 0)))
badvalue(lambda: uuid.UUID(fields=(0, -1, 0, 0, 0, 0)))
badvalue(lambda: uuid.UUID(fields=(0, 0x10000, 0, 0, 0, 0)))
badvalue(lambda: uuid.UUID(fields=(0, 0, -1, 0, 0, 0)))
badvalue(lambda: uuid.UUID(fields=(0, 0, 0x10000, 0, 0, 0)))
badvalue(lambda: uuid.UUID(fields=(0, 0, 0, -1, 0, 0)))
badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0x100, 0, 0)))
badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0, -1, 0)))
badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0, 0x100, 0)))
badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0, 0, -1)))
badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0, 0, 0x1000000000000)))
# Version number out of range.
badvalue(lambda: uuid.UUID('00'*16, version=0))
badvalue(lambda: uuid.UUID('00'*16, version=6))
# Integer value out of range.
badvalue(lambda: uuid.UUID(int=-1))
badvalue(lambda: 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
uuid.UUID(h)
uuid.UUID(hex=h)
uuid.UUID(bytes=b)
uuid.UUID(bytes_le=b)
uuid.UUID(fields=f)
uuid.UUID(int=i)
# Wrong number of arguments (positional).
badtype(lambda: uuid.UUID())
badtype(lambda: uuid.UUID(h, b))
badtype(lambda: uuid.UUID(h, b, b))
badtype(lambda: uuid.UUID(h, b, b, f))
badtype(lambda: 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: uuid.UUID(h, **args))
if len(args) != 1:
badtype(lambda: uuid.UUID(**args))
# Immutability.
u = 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))
def check_node(self, node, source):
message = "%012x is not an RFC 4122 node ID" % node
self.assertTrue(0 < node, message)
self.assertTrue(node < (1 << 48), message)
TestUUID.source2node[source] = node
if TestUUID.last_node:
if TestUUID.last_node != node:
msg = "different sources disagree on node:\n"
for s, n in TestUUID.source2node.items():
msg += " from source %r, node was %012x\n" % (s, n)
# There's actually no reason to expect the MAC addresses
# to agree across various methods -- e.g., a box may have
# multiple network interfaces, and different ways of getting
# a MAC address may favor different HW.
##self.fail(msg)
else:
TestUUID.last_node = node
@unittest.skipUnless(os.name == 'posix', 'requires Posix')
def test_ifconfig_getnode(self):
node = uuid._ifconfig_getnode()
if node is not None:
self.check_node(node, 'ifconfig')
@unittest.skipUnless(os.name == 'nt', 'requires Windows')
def test_ipconfig_getnode(self):
node = uuid._ipconfig_getnode()
if node is not None:
self.check_node(node, 'ipconfig')
@unittest.skipUnless(importable('win32wnet'), 'requires win32wnet')
@unittest.skipUnless(importable('netbios'), 'requires netbios')
def test_netbios_getnode(self):
self.check_node(uuid._netbios_getnode(), 'netbios')
def test_random_getnode(self):
node = uuid._random_getnode()
# Least significant bit of first octet must be set.
self.assertTrue(node & 0x010000000000)
self.assertTrue(node < (1 << 48))
@unittest.skipUnless(os.name == 'posix', 'requires Posix')
@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
def test_unixdll_getnode(self):
try: # Issues 1481, 3581: _uuid_generate_time() might be None.
self.check_node(uuid._unixdll_getnode(), 'unixdll')
except TypeError:
pass
@unittest.skipUnless(os.name == 'nt', 'requires Windows')
@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
def test_windll_getnode(self):
self.check_node(uuid._windll_getnode(), 'windll')
def test_getnode(self):
node1 = uuid.getnode()
self.check_node(node1, "getnode1")
# Test it again to ensure consistency.
node2 = uuid.getnode()
self.check_node(node2, "getnode2")
self.assertEqual(node1, node2)
@unittest.skipUnless(os.name == 'posix', 'requires Posix')
def test_find_mac(self):
data = '''
fake hwaddr
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
'''
popen = unittest.mock.MagicMock()
popen.stdout = io.BytesIO(data.encode())
with unittest.mock.patch.object(shutil, 'which',
return_value='/sbin/ifconfig'):
with unittest.mock.patch.object(subprocess, 'Popen',
return_value=popen):
mac = uuid._find_mac(
command='ifconfig',
arg='',
hw_identifiers=[b'hwaddr'],
get_index=lambda x: x + 1,
)
self.assertEqual(mac, 0x1234567890ab)
@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
def test_uuid1(self):
equal = self.assertEqual
# Make sure uuid1() generates UUIDs that are actually version 1.
for u in [uuid.uuid1() for i in range(10)]:
equal(u.variant, uuid.RFC_4122)
equal(u.version, 1)
# Make sure the generated UUIDs are actually unique.
uuids = {}
for u in [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 = uuid.uuid1(0)
equal(u.node, 0)
u = uuid.uuid1(0x123456789abc)
equal(u.node, 0x123456789abc)
u = uuid.uuid1(0xffffffffffff)
equal(u.node, 0xffffffffffff)
# Make sure the supplied clock sequence appears in the UUID.
u = uuid.uuid1(0x123456789abc, 0)
equal(u.node, 0x123456789abc)
equal(((u.clock_seq_hi_variant & 0x3f) << 8) | u.clock_seq_low, 0)
u = uuid.uuid1(0x123456789abc, 0x1234)
equal(u.node, 0x123456789abc)
equal(((u.clock_seq_hi_variant & 0x3f) << 8) |
u.clock_seq_low, 0x1234)
u = uuid.uuid1(0x123456789abc, 0x3fff)
equal(u.node, 0x123456789abc)
equal(((u.clock_seq_hi_variant & 0x3f) << 8) |
u.clock_seq_low, 0x3fff)
def test_uuid3(self):
equal = self.assertEqual
# Test some known version-3 UUIDs.
for u, v in [(uuid.uuid3(uuid.NAMESPACE_DNS, 'python.org'),
'6fa459ea-ee8a-3ca4-894e-db77e160355e'),
(uuid.uuid3(uuid.NAMESPACE_URL, 'http://python.org/'),
'9fe8e8c4-aaa8-32a9-a55c-4535a88b748d'),
(uuid.uuid3(uuid.NAMESPACE_OID, '1.3.6.1'),
'dd1a1cef-13d5-368a-ad82-eca71acd4cd1'),
(uuid.uuid3(uuid.NAMESPACE_X500, 'c=ca'),
'658d3002-db6b-3040-a1d1-8ddd7d189a4d'),
]:
equal(u.variant, uuid.RFC_4122)
equal(u.version, 3)
equal(u, uuid.UUID(v))
equal(str(u), v)
@unittest.skipUnless(importable('ctypes'), 'requires ctypes')
def test_uuid4(self):
equal = self.assertEqual
# Make sure uuid4() generates UUIDs that are actually version 4.
for u in [uuid.uuid4() for i in range(10)]:
equal(u.variant, uuid.RFC_4122)
equal(u.version, 4)
# Make sure the generated UUIDs are actually unique.
uuids = {}
for u in [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.
for u, v in [(uuid.uuid5(uuid.NAMESPACE_DNS, 'python.org'),
'886313e1-3b8a-5372-9b90-0c9aee199e5d'),
(uuid.uuid5(uuid.NAMESPACE_URL, 'http://python.org/'),
'4c565f0d-3f5a-5890-b41b-20cf47701c5e'),
(uuid.uuid5(uuid.NAMESPACE_OID, '1.3.6.1'),
'1447fa61-5277-5fef-a9b3-fbc6e44f4af3'),
(uuid.uuid5(uuid.NAMESPACE_X500, 'c=ca'),
'cc957dd1-a972-5349-98cd-874190002798'),
]:
equal(u.variant, uuid.RFC_4122)
equal(u.version, 5)
equal(u, uuid.UUID(v))
equal(str(u), v)
@unittest.skipUnless(os.name == 'posix', 'requires Posix')
def testIssue8621(self):
# On at least some versions of OSX 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 = 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 = uuid.uuid4().hex
os.waitpid(pid, 0)
child_value = os.read(fds[0], 100).decode('latin-1')
self.assertNotEqual(parent_value, child_value)
if __name__ == '__main__':
unittest.main()
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