1from unittest import TestCase
2from test import test_support
3import uuid
4
5def importable(name):
6    try:
7        __import__(name)
8        return True
9    except:
10        return False
11
12class TestUUID(TestCase):
13    last_node = None
14    source2node = {}
15
16    def test_UUID(self):
17        equal = self.assertEqual
18        ascending = []
19        for (string, curly, hex, bytes, bytes_le, fields, integer, urn,
20             time, clock_seq, variant, version) in [
21            ('00000000-0000-0000-0000-000000000000',
22             '{00000000-0000-0000-0000-000000000000}',
23             '00000000000000000000000000000000',
24             '\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0',
25             '\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0',
26             (0, 0, 0, 0, 0, 0),
27             0,
28             'urn:uuid:00000000-0000-0000-0000-000000000000',
29             0, 0, uuid.RESERVED_NCS, None),
30            ('00010203-0405-0607-0809-0a0b0c0d0e0f',
31             '{00010203-0405-0607-0809-0a0b0c0d0e0f}',
32             '000102030405060708090a0b0c0d0e0f',
33             '\0\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\x0d\x0e\x0f',
34             '\x03\x02\x01\0\x05\x04\x07\x06\x08\t\n\x0b\x0c\x0d\x0e\x0f',
35             (0x00010203L, 0x0405, 0x0607, 8, 9, 0x0a0b0c0d0e0fL),
36             0x000102030405060708090a0b0c0d0e0fL,
37             'urn:uuid:00010203-0405-0607-0809-0a0b0c0d0e0f',
38             0x607040500010203L, 0x809, uuid.RESERVED_NCS, None),
39            ('02d9e6d5-9467-382e-8f9b-9300a64ac3cd',
40             '{02d9e6d5-9467-382e-8f9b-9300a64ac3cd}',
41             '02d9e6d59467382e8f9b9300a64ac3cd',
42             '\x02\xd9\xe6\xd5\x94\x67\x38\x2e\x8f\x9b\x93\x00\xa6\x4a\xc3\xcd',
43             '\xd5\xe6\xd9\x02\x67\x94\x2e\x38\x8f\x9b\x93\x00\xa6\x4a\xc3\xcd',
44             (0x02d9e6d5L, 0x9467, 0x382e, 0x8f, 0x9b, 0x9300a64ac3cdL),
45             0x02d9e6d59467382e8f9b9300a64ac3cdL,
46             'urn:uuid:02d9e6d5-9467-382e-8f9b-9300a64ac3cd',
47             0x82e946702d9e6d5L, 0xf9b, uuid.RFC_4122, 3),
48            ('12345678-1234-5678-1234-567812345678',
49             '{12345678-1234-5678-1234-567812345678}',
50             '12345678123456781234567812345678',
51             '\x12\x34\x56\x78'*4,
52             '\x78\x56\x34\x12\x34\x12\x78\x56\x12\x34\x56\x78\x12\x34\x56\x78',
53             (0x12345678, 0x1234, 0x5678, 0x12, 0x34, 0x567812345678),
54             0x12345678123456781234567812345678,
55             'urn:uuid:12345678-1234-5678-1234-567812345678',
56             0x678123412345678L, 0x1234, uuid.RESERVED_NCS, None),
57            ('6ba7b810-9dad-11d1-80b4-00c04fd430c8',
58             '{6ba7b810-9dad-11d1-80b4-00c04fd430c8}',
59             '6ba7b8109dad11d180b400c04fd430c8',
60             '\x6b\xa7\xb8\x10\x9d\xad\x11\xd1\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
61             '\x10\xb8\xa7\x6b\xad\x9d\xd1\x11\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
62             (0x6ba7b810L, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00c04fd430c8L),
63             0x6ba7b8109dad11d180b400c04fd430c8L,
64             'urn:uuid:6ba7b810-9dad-11d1-80b4-00c04fd430c8',
65             0x1d19dad6ba7b810L, 0xb4, uuid.RFC_4122, 1),
66            ('6ba7b811-9dad-11d1-80b4-00c04fd430c8',
67             '{6ba7b811-9dad-11d1-80b4-00c04fd430c8}',
68             '6ba7b8119dad11d180b400c04fd430c8',
69             '\x6b\xa7\xb8\x11\x9d\xad\x11\xd1\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
70             '\x11\xb8\xa7\x6b\xad\x9d\xd1\x11\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
71             (0x6ba7b811L, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00c04fd430c8L),
72             0x6ba7b8119dad11d180b400c04fd430c8L,
73             'urn:uuid:6ba7b811-9dad-11d1-80b4-00c04fd430c8',
74             0x1d19dad6ba7b811L, 0xb4, uuid.RFC_4122, 1),
75            ('6ba7b812-9dad-11d1-80b4-00c04fd430c8',
76             '{6ba7b812-9dad-11d1-80b4-00c04fd430c8}',
77             '6ba7b8129dad11d180b400c04fd430c8',
78             '\x6b\xa7\xb8\x12\x9d\xad\x11\xd1\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
79             '\x12\xb8\xa7\x6b\xad\x9d\xd1\x11\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
80             (0x6ba7b812L, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00c04fd430c8L),
81             0x6ba7b8129dad11d180b400c04fd430c8L,
82             'urn:uuid:6ba7b812-9dad-11d1-80b4-00c04fd430c8',
83             0x1d19dad6ba7b812L, 0xb4, uuid.RFC_4122, 1),
84            ('6ba7b814-9dad-11d1-80b4-00c04fd430c8',
85             '{6ba7b814-9dad-11d1-80b4-00c04fd430c8}',
86             '6ba7b8149dad11d180b400c04fd430c8',
87             '\x6b\xa7\xb8\x14\x9d\xad\x11\xd1\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
88             '\x14\xb8\xa7\x6b\xad\x9d\xd1\x11\x80\xb4\x00\xc0\x4f\xd4\x30\xc8',
89             (0x6ba7b814L, 0x9dad, 0x11d1, 0x80, 0xb4, 0x00c04fd430c8L),
90             0x6ba7b8149dad11d180b400c04fd430c8L,
91             'urn:uuid:6ba7b814-9dad-11d1-80b4-00c04fd430c8',
92             0x1d19dad6ba7b814L, 0xb4, uuid.RFC_4122, 1),
93            ('7d444840-9dc0-11d1-b245-5ffdce74fad2',
94             '{7d444840-9dc0-11d1-b245-5ffdce74fad2}',
95             '7d4448409dc011d1b2455ffdce74fad2',
96             '\x7d\x44\x48\x40\x9d\xc0\x11\xd1\xb2\x45\x5f\xfd\xce\x74\xfa\xd2',
97             '\x40\x48\x44\x7d\xc0\x9d\xd1\x11\xb2\x45\x5f\xfd\xce\x74\xfa\xd2',
98             (0x7d444840L, 0x9dc0, 0x11d1, 0xb2, 0x45, 0x5ffdce74fad2L),
99             0x7d4448409dc011d1b2455ffdce74fad2L,
100             'urn:uuid:7d444840-9dc0-11d1-b245-5ffdce74fad2',
101             0x1d19dc07d444840L, 0x3245, uuid.RFC_4122, 1),
102            ('e902893a-9d22-3c7e-a7b8-d6e313b71d9f',
103             '{e902893a-9d22-3c7e-a7b8-d6e313b71d9f}',
104             'e902893a9d223c7ea7b8d6e313b71d9f',
105             '\xe9\x02\x89\x3a\x9d\x22\x3c\x7e\xa7\xb8\xd6\xe3\x13\xb7\x1d\x9f',
106             '\x3a\x89\x02\xe9\x22\x9d\x7e\x3c\xa7\xb8\xd6\xe3\x13\xb7\x1d\x9f',
107             (0xe902893aL, 0x9d22, 0x3c7e, 0xa7, 0xb8, 0xd6e313b71d9fL),
108             0xe902893a9d223c7ea7b8d6e313b71d9fL,
109             'urn:uuid:e902893a-9d22-3c7e-a7b8-d6e313b71d9f',
110             0xc7e9d22e902893aL, 0x27b8, uuid.RFC_4122, 3),
111            ('eb424026-6f54-4ef8-a4d0-bb658a1fc6cf',
112             '{eb424026-6f54-4ef8-a4d0-bb658a1fc6cf}',
113             'eb4240266f544ef8a4d0bb658a1fc6cf',
114             '\xeb\x42\x40\x26\x6f\x54\x4e\xf8\xa4\xd0\xbb\x65\x8a\x1f\xc6\xcf',
115             '\x26\x40\x42\xeb\x54\x6f\xf8\x4e\xa4\xd0\xbb\x65\x8a\x1f\xc6\xcf',
116             (0xeb424026L, 0x6f54, 0x4ef8, 0xa4, 0xd0, 0xbb658a1fc6cfL),
117             0xeb4240266f544ef8a4d0bb658a1fc6cfL,
118             'urn:uuid:eb424026-6f54-4ef8-a4d0-bb658a1fc6cf',
119             0xef86f54eb424026L, 0x24d0, uuid.RFC_4122, 4),
120            ('f81d4fae-7dec-11d0-a765-00a0c91e6bf6',
121             '{f81d4fae-7dec-11d0-a765-00a0c91e6bf6}',
122             'f81d4fae7dec11d0a76500a0c91e6bf6',
123             '\xf8\x1d\x4f\xae\x7d\xec\x11\xd0\xa7\x65\x00\xa0\xc9\x1e\x6b\xf6',
124             '\xae\x4f\x1d\xf8\xec\x7d\xd0\x11\xa7\x65\x00\xa0\xc9\x1e\x6b\xf6',
125             (0xf81d4faeL, 0x7dec, 0x11d0, 0xa7, 0x65, 0x00a0c91e6bf6L),
126             0xf81d4fae7dec11d0a76500a0c91e6bf6L,
127             'urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6',
128             0x1d07decf81d4faeL, 0x2765, uuid.RFC_4122, 1),
129            ('fffefdfc-fffe-fffe-fffe-fffefdfcfbfa',
130             '{fffefdfc-fffe-fffe-fffe-fffefdfcfbfa}',
131             'fffefdfcfffefffefffefffefdfcfbfa',
132             '\xff\xfe\xfd\xfc\xff\xfe\xff\xfe\xff\xfe\xff\xfe\xfd\xfc\xfb\xfa',
133             '\xfc\xfd\xfe\xff\xfe\xff\xfe\xff\xff\xfe\xff\xfe\xfd\xfc\xfb\xfa',
134             (0xfffefdfcL, 0xfffe, 0xfffe, 0xff, 0xfe, 0xfffefdfcfbfaL),
135             0xfffefdfcfffefffefffefffefdfcfbfaL,
136             'urn:uuid:fffefdfc-fffe-fffe-fffe-fffefdfcfbfa',
137             0xffefffefffefdfcL, 0x3ffe, uuid.RESERVED_FUTURE, None),
138            ('ffffffff-ffff-ffff-ffff-ffffffffffff',
139             '{ffffffff-ffff-ffff-ffff-ffffffffffff}',
140             'ffffffffffffffffffffffffffffffff',
141             '\xff'*16,
142             '\xff'*16,
143             (0xffffffffL, 0xffffL, 0xffffL, 0xff, 0xff, 0xffffffffffffL),
144             0xffffffffffffffffffffffffffffffffL,
145             'urn:uuid:ffffffff-ffff-ffff-ffff-ffffffffffff',
146             0xfffffffffffffffL, 0x3fff, uuid.RESERVED_FUTURE, None),
147            ]:
148            equivalents = []
149            # Construct each UUID in several different ways.
150            for u in [uuid.UUID(string), uuid.UUID(curly), uuid.UUID(hex),
151                      uuid.UUID(bytes=bytes), uuid.UUID(bytes_le=bytes_le),
152                      uuid.UUID(fields=fields), uuid.UUID(int=integer),
153                      uuid.UUID(urn)]:
154                # Test all conversions and properties of the UUID object.
155                equal(str(u), string)
156                equal(int(u), integer)
157                equal(u.bytes, bytes)
158                equal(u.bytes_le, bytes_le)
159                equal(u.fields, fields)
160                equal(u.time_low, fields[0])
161                equal(u.time_mid, fields[1])
162                equal(u.time_hi_version, fields[2])
163                equal(u.clock_seq_hi_variant, fields[3])
164                equal(u.clock_seq_low, fields[4])
165                equal(u.node, fields[5])
166                equal(u.hex, hex)
167                equal(u.int, integer)
168                equal(u.urn, urn)
169                equal(u.time, time)
170                equal(u.clock_seq, clock_seq)
171                equal(u.variant, variant)
172                equal(u.version, version)
173                equivalents.append(u)
174
175            # Different construction methods should give the same UUID.
176            for u in equivalents:
177                for v in equivalents:
178                    equal(u, v)
179            ascending.append(u)
180
181        # Test comparison of UUIDs.
182        for i in range(len(ascending)):
183            for j in range(len(ascending)):
184                equal(cmp(i, j), cmp(ascending[i], ascending[j]))
185
186        # Test sorting of UUIDs (above list is in ascending order).
187        resorted = ascending[:]
188        resorted.reverse()
189        resorted.sort()
190        equal(ascending, resorted)
191
192    def test_exceptions(self):
193        badvalue = lambda f: self.assertRaises(ValueError, f)
194        badtype = lambda f: self.assertRaises(TypeError, f)
195
196        # Badly formed hex strings.
197        badvalue(lambda: uuid.UUID(''))
198        badvalue(lambda: uuid.UUID('abc'))
199        badvalue(lambda: uuid.UUID('1234567812345678123456781234567'))
200        badvalue(lambda: uuid.UUID('123456781234567812345678123456789'))
201        badvalue(lambda: uuid.UUID('123456781234567812345678z2345678'))
202
203        # Badly formed bytes.
204        badvalue(lambda: uuid.UUID(bytes='abc'))
205        badvalue(lambda: uuid.UUID(bytes='\0'*15))
206        badvalue(lambda: uuid.UUID(bytes='\0'*17))
207
208        # Badly formed bytes_le.
209        badvalue(lambda: uuid.UUID(bytes_le='abc'))
210        badvalue(lambda: uuid.UUID(bytes_le='\0'*15))
211        badvalue(lambda: uuid.UUID(bytes_le='\0'*17))
212
213        # Badly formed fields.
214        badvalue(lambda: uuid.UUID(fields=(1,)))
215        badvalue(lambda: uuid.UUID(fields=(1, 2, 3, 4, 5)))
216        badvalue(lambda: uuid.UUID(fields=(1, 2, 3, 4, 5, 6, 7)))
217
218        # Field values out of range.
219        badvalue(lambda: uuid.UUID(fields=(-1, 0, 0, 0, 0, 0)))
220        badvalue(lambda: uuid.UUID(fields=(0x100000000L, 0, 0, 0, 0, 0)))
221        badvalue(lambda: uuid.UUID(fields=(0, -1, 0, 0, 0, 0)))
222        badvalue(lambda: uuid.UUID(fields=(0, 0x10000L, 0, 0, 0, 0)))
223        badvalue(lambda: uuid.UUID(fields=(0, 0, -1, 0, 0, 0)))
224        badvalue(lambda: uuid.UUID(fields=(0, 0, 0x10000L, 0, 0, 0)))
225        badvalue(lambda: uuid.UUID(fields=(0, 0, 0, -1, 0, 0)))
226        badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0x100L, 0, 0)))
227        badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0, -1, 0)))
228        badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0, 0x100L, 0)))
229        badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0, 0, -1)))
230        badvalue(lambda: uuid.UUID(fields=(0, 0, 0, 0, 0, 0x1000000000000L)))
231
232        # Version number out of range.
233        badvalue(lambda: uuid.UUID('00'*16, version=0))
234        badvalue(lambda: uuid.UUID('00'*16, version=6))
235
236        # Integer value out of range.
237        badvalue(lambda: uuid.UUID(int=-1))
238        badvalue(lambda: uuid.UUID(int=1<<128L))
239
240        # Must supply exactly one of hex, bytes, fields, int.
241        h, b, f, i = '00'*16, '\0'*16, (0, 0, 0, 0, 0, 0), 0
242        uuid.UUID(h)
243        uuid.UUID(hex=h)
244        uuid.UUID(bytes=b)
245        uuid.UUID(bytes_le=b)
246        uuid.UUID(fields=f)
247        uuid.UUID(int=i)
248
249        # Wrong number of arguments (positional).
250        badtype(lambda: uuid.UUID())
251        badtype(lambda: uuid.UUID(h, b))
252        badtype(lambda: uuid.UUID(h, b, b))
253        badtype(lambda: uuid.UUID(h, b, b, f))
254        badtype(lambda: uuid.UUID(h, b, b, f, i))
255
256        # Duplicate arguments.
257        for hh in [[], [('hex', h)]]:
258            for bb in [[], [('bytes', b)]]:
259                for bble in [[], [('bytes_le', b)]]:
260                    for ii in [[], [('int', i)]]:
261                        for ff in [[], [('fields', f)]]:
262                            args = dict(hh + bb + bble + ii + ff)
263                            if len(args) != 0:
264                                badtype(lambda: uuid.UUID(h, **args))
265                            if len(args) != 1:
266                                badtype(lambda: uuid.UUID(**args))
267
268        # Immutability.
269        u = uuid.UUID(h)
270        badtype(lambda: setattr(u, 'hex', h))
271        badtype(lambda: setattr(u, 'bytes', b))
272        badtype(lambda: setattr(u, 'bytes_le', b))
273        badtype(lambda: setattr(u, 'fields', f))
274        badtype(lambda: setattr(u, 'int', i))
275        badtype(lambda: setattr(u, 'time_low', 0))
276        badtype(lambda: setattr(u, 'time_mid', 0))
277        badtype(lambda: setattr(u, 'time_hi_version', 0))
278        badtype(lambda: setattr(u, 'time_hi_version', 0))
279        badtype(lambda: setattr(u, 'clock_seq_hi_variant', 0))
280        badtype(lambda: setattr(u, 'clock_seq_low', 0))
281        badtype(lambda: setattr(u, 'node', 0))
282
283    def check_node(self, node, source):
284        message = "%012x is not an RFC 4122 node ID" % node
285        self.assertTrue(0 < node, message)
286        self.assertTrue(node < (1L << 48), message)
287
288        TestUUID.source2node[source] = node
289        if TestUUID.last_node:
290            if TestUUID.last_node != node:
291                msg = "different sources disagree on node:\n"
292                for s, n in TestUUID.source2node.iteritems():
293                    msg += "    from source %r, node was %012x\n" % (s, n)
294                # There's actually no reason to expect the MAC addresses
295                # to agree across various methods -- e.g., a box may have
296                # multiple network interfaces, and different ways of getting
297                # a MAC address may favor different HW.
298                ##self.fail(msg)
299        else:
300            TestUUID.last_node = node
301
302    def test_ifconfig_getnode(self):
303        import sys
304        import os
305        if os.name == 'posix':
306            node = uuid._ifconfig_getnode()
307            if node is not None:
308                self.check_node(node, 'ifconfig')
309
310    def test_ipconfig_getnode(self):
311        import os
312        if os.name == 'nt':
313            node = uuid._ipconfig_getnode()
314            if node is not None:
315                self.check_node(node, 'ipconfig')
316
317    def test_netbios_getnode(self):
318        if importable('win32wnet') and importable('netbios'):
319            self.check_node(uuid._netbios_getnode(), 'netbios')
320
321    def test_random_getnode(self):
322        node = uuid._random_getnode()
323        # Least significant bit of first octet must be set.
324        self.assertTrue(node & 0x010000000000)
325        self.assertTrue(node < (1L << 48))
326
327    def test_unixdll_getnode(self):
328        import sys
329        import os
330        if importable('ctypes') and os.name == 'posix':
331            try: # Issues 1481, 3581: _uuid_generate_time() might be None.
332                self.check_node(uuid._unixdll_getnode(), 'unixdll')
333            except TypeError:
334                pass
335
336    def test_windll_getnode(self):
337        import os
338        if importable('ctypes') and os.name == 'nt':
339            self.check_node(uuid._windll_getnode(), 'windll')
340
341    def test_getnode(self):
342        import sys
343        node1 = uuid.getnode()
344        self.check_node(node1, "getnode1")
345
346        # Test it again to ensure consistency.
347        node2 = uuid.getnode()
348        self.check_node(node2, "getnode2")
349
350        self.assertEqual(node1, node2)
351
352    def test_uuid1(self):
353        # uuid1 requires ctypes.
354        try:
355            import ctypes
356        except ImportError:
357            return
358
359        equal = self.assertEqual
360
361        # Make sure uuid1() generates UUIDs that are actually version 1.
362        for u in [uuid.uuid1() for i in range(10)]:
363            equal(u.variant, uuid.RFC_4122)
364            equal(u.version, 1)
365
366        # Make sure the generated UUIDs are actually unique.
367        uuids = {}
368        for u in [uuid.uuid1() for i in range(1000)]:
369            uuids[u] = 1
370        equal(len(uuids.keys()), 1000)
371
372        # Make sure the supplied node ID appears in the UUID.
373        u = uuid.uuid1(0)
374        equal(u.node, 0)
375        u = uuid.uuid1(0x123456789abc)
376        equal(u.node, 0x123456789abc)
377        u = uuid.uuid1(0xffffffffffff)
378        equal(u.node, 0xffffffffffff)
379
380        # Make sure the supplied clock sequence appears in the UUID.
381        u = uuid.uuid1(0x123456789abc, 0)
382        equal(u.node, 0x123456789abc)
383        equal(((u.clock_seq_hi_variant & 0x3f) << 8) | u.clock_seq_low, 0)
384        u = uuid.uuid1(0x123456789abc, 0x1234)
385        equal(u.node, 0x123456789abc)
386        equal(((u.clock_seq_hi_variant & 0x3f) << 8) |
387                         u.clock_seq_low, 0x1234)
388        u = uuid.uuid1(0x123456789abc, 0x3fff)
389        equal(u.node, 0x123456789abc)
390        equal(((u.clock_seq_hi_variant & 0x3f) << 8) |
391                         u.clock_seq_low, 0x3fff)
392
393    def test_uuid3(self):
394        equal = self.assertEqual
395
396        # Test some known version-3 UUIDs.
397        for u, v in [(uuid.uuid3(uuid.NAMESPACE_DNS, 'python.org'),
398                      '6fa459ea-ee8a-3ca4-894e-db77e160355e'),
399                     (uuid.uuid3(uuid.NAMESPACE_URL, 'http://python.org/'),
400                      '9fe8e8c4-aaa8-32a9-a55c-4535a88b748d'),
401                     (uuid.uuid3(uuid.NAMESPACE_OID, '1.3.6.1'),
402                      'dd1a1cef-13d5-368a-ad82-eca71acd4cd1'),
403                     (uuid.uuid3(uuid.NAMESPACE_X500, 'c=ca'),
404                      '658d3002-db6b-3040-a1d1-8ddd7d189a4d'),
405                    ]:
406            equal(u.variant, uuid.RFC_4122)
407            equal(u.version, 3)
408            equal(u, uuid.UUID(v))
409            equal(str(u), v)
410
411    def test_uuid4(self):
412        # uuid4 requires ctypes.
413        try:
414            import ctypes
415        except ImportError:
416            return
417
418        equal = self.assertEqual
419
420        # Make sure uuid4() generates UUIDs that are actually version 4.
421        for u in [uuid.uuid4() for i in range(10)]:
422            equal(u.variant, uuid.RFC_4122)
423            equal(u.version, 4)
424
425        # Make sure the generated UUIDs are actually unique.
426        uuids = {}
427        for u in [uuid.uuid4() for i in range(1000)]:
428            uuids[u] = 1
429        equal(len(uuids.keys()), 1000)
430
431    def test_uuid5(self):
432        equal = self.assertEqual
433
434        # Test some known version-5 UUIDs.
435        for u, v in [(uuid.uuid5(uuid.NAMESPACE_DNS, 'python.org'),
436                      '886313e1-3b8a-5372-9b90-0c9aee199e5d'),
437                     (uuid.uuid5(uuid.NAMESPACE_URL, 'http://python.org/'),
438                      '4c565f0d-3f5a-5890-b41b-20cf47701c5e'),
439                     (uuid.uuid5(uuid.NAMESPACE_OID, '1.3.6.1'),
440                      '1447fa61-5277-5fef-a9b3-fbc6e44f4af3'),
441                     (uuid.uuid5(uuid.NAMESPACE_X500, 'c=ca'),
442                      'cc957dd1-a972-5349-98cd-874190002798'),
443                    ]:
444            equal(u.variant, uuid.RFC_4122)
445            equal(u.version, 5)
446            equal(u, uuid.UUID(v))
447            equal(str(u), v)
448
449    def testIssue8621(self):
450        import os
451        import sys
452        if os.name != 'posix':
453            return
454
455        # On at least some versions of OSX uuid.uuid4 generates
456        # the same sequence of UUIDs in the parent and any
457        # children started using fork.
458        fds = os.pipe()
459        pid = os.fork()
460        if pid == 0:
461            os.close(fds[0])
462            value = uuid.uuid4()
463            os.write(fds[1], value.hex)
464            os._exit(0)
465
466        else:
467            os.close(fds[1])
468            parent_value = uuid.uuid4().hex
469            os.waitpid(pid, 0)
470            child_value = os.read(fds[0], 100)
471
472            self.assertNotEqual(parent_value, child_value)
473
474
475
476
477
478def test_main():
479    test_support.run_unittest(TestUUID)
480
481if __name__ == '__main__':
482    test_main()
483