Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_hashlib.py @ 54294:dba767bc3155 legacy-trunk

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remove mention of old ctypes version
author Benjamin Peterson <benjamin@python.org>
date Sat, 23 May 2009 20:59:09 +0000
parents e45186edac91
children 6768b2350c57
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # Test hashlib module
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2 #
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3 # $Id$
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4 #
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5 # Copyright (C) 2005-2009 Gregory P. Smith (greg@krypto.org)
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6 # Licensed to PSF under a Contributor Agreement.
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7 #
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8
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9 import hashlib
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10 import StringIO
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11 try:
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12 import threading
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13 except ImportError:
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14 threading = None
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15 import unittest
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16 from test import test_support
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17 from test.test_support import _4G, precisionbigmemtest
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18
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19 def hexstr(s):
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20 import string
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21 h = string.hexdigits
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22 r = ''
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23 for c in s:
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24 i = ord(c)
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25 r = r + h[(i >> 4) & 0xF] + h[i & 0xF]
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26 return r
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27
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28
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29 class HashLibTestCase(unittest.TestCase):
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30 supported_hash_names = ( 'md5', 'MD5', 'sha1', 'SHA1',
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31 'sha224', 'SHA224', 'sha256', 'SHA256',
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32 'sha384', 'SHA384', 'sha512', 'SHA512' )
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33
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34 def test_unknown_hash(self):
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35 try:
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36 hashlib.new('spam spam spam spam spam')
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37 except ValueError:
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38 pass
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39 else:
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40 self.assert_(0 == "hashlib didn't reject bogus hash name")
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41
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42 def test_hexdigest(self):
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43 for name in self.supported_hash_names:
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44 h = hashlib.new(name)
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45 self.assert_(hexstr(h.digest()) == h.hexdigest())
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46
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47 def test_large_update(self):
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48 aas = 'a' * 128
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49 bees = 'b' * 127
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50 cees = 'c' * 126
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51 abcs = aas + bees + cees
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52
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53 for name in self.supported_hash_names:
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54 m1 = hashlib.new(name)
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55 m1.update(aas)
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56 m1.update(bees)
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57 m1.update(cees)
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58
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59 m2 = hashlib.new(name)
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60 m2.update(abcs)
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61 self.assertEqual(m1.digest(), m2.digest(), name+' update problem.')
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62
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63 m3 = hashlib.new(name, abcs)
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64 self.assertEqual(m1.digest(), m3.digest(), name+' new problem.')
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65
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66 def check(self, name, data, digest):
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67 # test the direct constructors
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68 computed = getattr(hashlib, name)(data).hexdigest()
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69 self.assertEqual(computed, digest)
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70 # test the general new() interface
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71 computed = hashlib.new(name, data).hexdigest()
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72 self.assertEqual(computed, digest)
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73
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74 def check_no_unicode(self, algorithm_name):
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75 # Unicode objects are not allowed as input.
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76 self.assertRaises(TypeError, getattr(hashlib, algorithm_name), u'spam')
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77 self.assertRaises(TypeError, hashlib.new, algorithm_name, u'spam')
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78
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79 def test_no_unicode(self):
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80 self.check_no_unicode('md5')
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81 self.check_no_unicode('sha1')
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82 self.check_no_unicode('sha224')
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83 self.check_no_unicode('sha256')
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84 self.check_no_unicode('sha384')
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85 self.check_no_unicode('sha512')
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86
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87 def test_case_md5_0(self):
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88 self.check('md5', '', 'd41d8cd98f00b204e9800998ecf8427e')
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89
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90 def test_case_md5_1(self):
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91 self.check('md5', 'abc', '900150983cd24fb0d6963f7d28e17f72')
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92
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93 def test_case_md5_2(self):
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94 self.check('md5', 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
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95 'd174ab98d277d9f5a5611c2c9f419d9f')
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96
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97 @precisionbigmemtest(size=_4G + 5, memuse=1)
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98 def test_case_md5_huge(self, size):
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99 if size == _4G + 5:
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100 try:
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101 self.check('md5', 'A'*size, 'c9af2dff37468ce5dfee8f2cfc0a9c6d')
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102 except OverflowError:
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103 pass # 32-bit arch
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104
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105 @precisionbigmemtest(size=_4G - 1, memuse=1)
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106 def test_case_md5_uintmax(self, size):
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107 if size == _4G - 1:
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108 try:
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109 self.check('md5', 'A'*size, '28138d306ff1b8281f1a9067e1a1a2b3')
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110 except OverflowError:
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111 pass # 32-bit arch
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112
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113 # use the three examples from Federal Information Processing Standards
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114 # Publication 180-1, Secure Hash Standard, 1995 April 17
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115 # http://www.itl.nist.gov/div897/pubs/fip180-1.htm
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116
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117 def test_case_sha1_0(self):
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118 self.check('sha1', "",
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119 "da39a3ee5e6b4b0d3255bfef95601890afd80709")
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120
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121 def test_case_sha1_1(self):
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122 self.check('sha1', "abc",
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123 "a9993e364706816aba3e25717850c26c9cd0d89d")
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124
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125 def test_case_sha1_2(self):
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126 self.check('sha1', "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
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127 "84983e441c3bd26ebaae4aa1f95129e5e54670f1")
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128
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129 def test_case_sha1_3(self):
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130 self.check('sha1', "a" * 1000000,
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131 "34aa973cd4c4daa4f61eeb2bdbad27316534016f")
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132
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133
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134 # use the examples from Federal Information Processing Standards
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135 # Publication 180-2, Secure Hash Standard, 2002 August 1
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136 # http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
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137
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138 def test_case_sha224_0(self):
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139 self.check('sha224', "",
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140 "d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f")
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141
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142 def test_case_sha224_1(self):
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143 self.check('sha224', "abc",
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parents:
diff changeset
144 "23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7")
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145
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146 def test_case_sha224_2(self):
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147 self.check('sha224',
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diff changeset
148 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
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149 "75388b16512776cc5dba5da1fd890150b0c6455cb4f58b1952522525")
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150
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151 def test_case_sha224_3(self):
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152 self.check('sha224', "a" * 1000000,
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diff changeset
153 "20794655980c91d8bbb4c1ea97618a4bf03f42581948b2ee4ee7ad67")
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154
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155
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156 def test_case_sha256_0(self):
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157 self.check('sha256', "",
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158 "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
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159
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160 def test_case_sha256_1(self):
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161 self.check('sha256', "abc",
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parents:
diff changeset
162 "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")
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163
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164 def test_case_sha256_2(self):
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165 self.check('sha256',
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166 "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
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167 "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1")
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168
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169 def test_case_sha256_3(self):
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170 self.check('sha256', "a" * 1000000,
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parents:
diff changeset
171 "cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0")
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172
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173
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174 def test_case_sha384_0(self):
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175 self.check('sha384', "",
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176 "38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da"+
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parents:
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177 "274edebfe76f65fbd51ad2f14898b95b")
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178
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179 def test_case_sha384_1(self):
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180 self.check('sha384', "abc",
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181 "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed"+
624918e1c1b2 [ sf.net patch # 1121611 ]
Gregory P. Smith <greg@mad-scientist.com>
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182 "8086072ba1e7cc2358baeca134c825a7")
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183
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184 def test_case_sha384_2(self):
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185 self.check('sha384',
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186 "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
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187 "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
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Gregory P. Smith <greg@mad-scientist.com>
parents:
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188 "09330c33f71147e83d192fc782cd1b4753111b173b3b05d22fa08086e3b0f712"+
624918e1c1b2 [ sf.net patch # 1121611 ]
Gregory P. Smith <greg@mad-scientist.com>
parents:
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189 "fcc7c71a557e2db966c3e9fa91746039")
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190
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191 def test_case_sha384_3(self):
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192 self.check('sha384', "a" * 1000000,
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Gregory P. Smith <greg@mad-scientist.com>
parents:
diff changeset
193 "9d0e1809716474cb086e834e310a4a1ced149e9c00f248527972cec5704c2a5b"+
624918e1c1b2 [ sf.net patch # 1121611 ]
Gregory P. Smith <greg@mad-scientist.com>
parents:
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194 "07b8b3dc38ecc4ebae97ddd87f3d8985")
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195
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196
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197 def test_case_sha512_0(self):
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198 self.check('sha512', "",
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199 "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"+
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Gregory P. Smith <greg@mad-scientist.com>
parents:
diff changeset
200 "47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e")
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201
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202 def test_case_sha512_1(self):
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203 self.check('sha512', "abc",
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parents:
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204 "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"+
624918e1c1b2 [ sf.net patch # 1121611 ]
Gregory P. Smith <greg@mad-scientist.com>
parents:
diff changeset
205 "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f")
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Gregory P. Smith <greg@mad-scientist.com>
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206
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207 def test_case_sha512_2(self):
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208 self.check('sha512',
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parents:
diff changeset
209 "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
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parents:
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210 "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
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Gregory P. Smith <greg@mad-scientist.com>
parents:
diff changeset
211 "8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018"+
624918e1c1b2 [ sf.net patch # 1121611 ]
Gregory P. Smith <greg@mad-scientist.com>
parents:
diff changeset
212 "501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909")
624918e1c1b2 [ sf.net patch # 1121611 ]
Gregory P. Smith <greg@mad-scientist.com>
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213
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214 def test_case_sha512_3(self):
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215 self.check('sha512', "a" * 1000000,
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Gregory P. Smith <greg@mad-scientist.com>
parents:
diff changeset
216 "e718483d0ce769644e2e42c7bc15b4638e1f98b13b2044285632a803afa973eb"+
624918e1c1b2 [ sf.net patch # 1121611 ]
Gregory P. Smith <greg@mad-scientist.com>
parents:
diff changeset
217 "de0ff244877ea60a4cb0432ce577c31beb009c5c2c49aa2e4eadb217ad8cc09b")
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218
53726
e4ff4273493b Issue #4751: For hashlib algorithms provided by OpenSSL, the Python
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219 def test_threaded_hashing(self):
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220 if not threading:
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221 raise unittest.SkipTest('No threading module.')
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222
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223 # Updating the same hash object from several threads at once
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224 # using data chunk sizes containing the same byte sequences.
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225 #
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226 # If the internal locks are working to prevent multiple
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227 # updates on the same object from running at once, the resulting
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228 # hash will be the same as doing it single threaded upfront.
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229 hasher = hashlib.sha1()
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230 num_threads = 5
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231 smallest_data = 'swineflu'
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232 data = smallest_data*200000
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233 expected_hash = hashlib.sha1(data*num_threads).hexdigest()
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234
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235 def hash_in_chunks(chunk_size, event):
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236 index = 0
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237 while index < len(data):
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238 hasher.update(data[index:index+chunk_size])
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239 index += chunk_size
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240 event.set()
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241
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242 events = []
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243 for threadnum in xrange(num_threads):
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244 chunk_size = len(data) // (10**threadnum)
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245 assert chunk_size > 0
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246 assert chunk_size % len(smallest_data) == 0
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247 event = threading.Event()
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248 events.append(event)
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249 threading.Thread(target=hash_in_chunks,
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250 args=(chunk_size, event)).start()
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251
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252 for event in events:
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diff changeset
253 event.wait()
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254
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255 self.assertEqual(expected_hash, hasher.hexdigest())
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256
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257 @test_support.reap_threads
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258 def test_main():
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259 test_support.run_unittest(HashLibTestCase)
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260
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261 if __name__ == "__main__":
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262 test_main()