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M½Ö4hŸ4&›­¿tès´%FìL¥£Ãk‰ÇT¤haÁ¤ÚxfÉ`ÑìË›>i 3t‚:,–+^÷´–{Û–Nxi"x‘Ûg î¨>¥Õ܁ùZH,2Û“:8xÊ¢Çí9.É-Ìâã-=çjwµS˜dütžçwýGòú®®ûº_ˆýx$–¡ãøO EÚÛÏ÷R„×w+3£Á£öUMyR²¹âŒ°š›¸Ñãò9§Ó_Dl+Ùßc›úšGÅÌc†Ž!Ko=¶.‘Îÿ c²(2®V mª.ÿ ¹B›¹å ù„öŸSV>™ü¯$y:G¢Z×àøúdî¹û­·ýÇ´:•c LÍõi_‹ö+ÎæGÊè>OŠ•äž´§Þ{X}¨1ÚTc›»Qþ•êô°t¿OP?eæ~É{5]•ÙR£r5†nZ\ã@ &îJõ ¾àC°þV>fé¥/ü5ñÊIº_é5 ;e­h<@ Ä&æÃëE%;X,ÒãÆÞ`Oò¦kŸm#˜!ÀyÄ¢| óLšò¥Ä` ¶R=|ÈCâh5ò3DˆïF†ðÒ#ÅìÛœ?¸yhBãœí ZxßÎÄhºRK„`Þödvײ™ÀÈÑÒgŒuY w³%†ƒÓzõ ÖÏp‚dH®¦A´ù§»ÓÇMæ~)ˆð‡û:ù&Ä •vGD´À n ݇¼Ö8Fö óáà£~Ë¥x`oK|Ä?fxiØü%pìR>éò+Û±éÎ>núlFŤ'tq8LZÏvÃ?„¡ß±È⽆¯³íü@x|PöUäèØã¡ð‚ŒAìÏ"vÍwóŸÍ{ ý0.z È•Ö{,N¡£¡ŸKÕÙž>Ýœþ ÍÀ°<×EA!Å‚D™IúOÍ¡>ôG}Â` ÍßkÜL™Ž Þð™ {IøF²¹òQ3&!ÃÂÞz.d&Ï-sH¸,Ôõ˜ŽP€ 77ˆÝ¼ÊëÜw =cÕ Ú,ØÐ5ÎYÐ)ì´öœgŒ[¤ßv㙑8心>h]§µháYš£²ºÑ.{Ï7Sð•?´~×SÃKýJÛ˜ ™Íäiúu<µX¶1õ^kâçIÑ£sZ4h>j*ÔšD:4­¿_ ÷¸ Õxæÿ ¸?Mù _•­ÊÐ ä ÷ý ÑwL œ­ïnTkÛUÍN©ë:¦fV ¶ÜÔÜMªÅâA½–¿R×TXš-%iTÊT•‡Ù‚JôϐZxWÑè‰f‰òG º ×Õû2aZ7OU3[“×AT–ÞŒ…-‘¤”Ì ì&(ˆ¿­•ƒkï’:ðY¦W‘ Å)“†‘˜³Åtcø˜ñTÂwÚÇ4|üLÇªí–v- qˆèU qPE.†â‘˜µ Æ,ÐÅs]8¾„oúÑ i>ÜxxÈó)ƒ ´æÁâØ$À‰vžŸf$Ž |ãw;ÀÁIJ»b` {¦Ó¤Ú$©YÀ‘n@Óïž«9J¼êG m¤ ܯ¹ÌW4€ÐÒÅÛ‡#褕Ÿn-?í|с¥÷Ú¹¬'´ÞÜ9ÓK `hê£SÄSà?7—Wí_´…óB›»:=Ãïq`<8ñÓŒÑlú2d¬ê³£hÖ[l|$vÝro~'R®‰§°ñmY ͧäP |PUª¹·:3Œ[Û{Xÿ ºâ@‚W–Äé u‚ ¯´*=íή.pûÒdt @G‰¬ s¸ ëÉücr ÞæѨÊ@>¤¢Ö±. Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙimport unittest from test import support import builtins import contextlib import copy import io import os import pickle import sys import weakref from unittest import mock py_uuid = support.import_fresh_module('uuid', blocked=['_uuid']) c_uuid = support.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_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): if not self.uuid._has_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') self.uuid._load_system_functions() 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, '_has_uuid_generate_time_safe', False), \ 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, '_has_uuid_generate_time_safe', False), \ 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. 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. 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) @unittest.skipUnless(os.name == 'posix', 'requires Posix') 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()) 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 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 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()