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Viewing changes to Lib/test/test_hashlib.py

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2009-02-13 12:51:00 UTC
  • Revision ID: james.westby@ubuntu.com-20090213125100-uufgcb9yeqzujpqw
Tags: upstream-2.6.1
Import upstream version 2.6.1

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Lib/test/test_hashlib.py
 
1
# Test hashlib module
 
2
#
 
3
# $Id: test_hashlib.py 66496 2008-09-18 01:22:16Z benjamin.peterson $
 
4
#
 
5
#  Copyright (C) 2005   Gregory P. Smith (greg@krypto.org)
 
6
#  Licensed to PSF under a Contributor Agreement.
 
7
#
 
8
 
 
9
import hashlib
 
10
import unittest
 
11
from test import test_support
 
12
from test.test_support import _4G, precisionbigmemtest
 
13
 
 
14
def hexstr(s):
 
15
    import string
 
16
    h = string.hexdigits
 
17
    r = ''
 
18
    for c in s:
 
19
        i = ord(c)
 
20
        r = r + h[(i >> 4) & 0xF] + h[i & 0xF]
 
21
    return r
 
22
 
 
23
 
 
24
class HashLibTestCase(unittest.TestCase):
 
25
    supported_hash_names = ( 'md5', 'MD5', 'sha1', 'SHA1',
 
26
                             'sha224', 'SHA224', 'sha256', 'SHA256',
 
27
                             'sha384', 'SHA384', 'sha512', 'SHA512' )
 
28
 
 
29
    def test_unknown_hash(self):
 
30
        try:
 
31
            hashlib.new('spam spam spam spam spam')
 
32
        except ValueError:
 
33
            pass
 
34
        else:
 
35
            self.assert_(0 == "hashlib didn't reject bogus hash name")
 
36
 
 
37
    def test_hexdigest(self):
 
38
        for name in self.supported_hash_names:
 
39
            h = hashlib.new(name)
 
40
            self.assert_(hexstr(h.digest()) == h.hexdigest())
 
41
 
 
42
 
 
43
    def test_large_update(self):
 
44
        aas = 'a' * 128
 
45
        bees = 'b' * 127
 
46
        cees = 'c' * 126
 
47
 
 
48
        for name in self.supported_hash_names:
 
49
            m1 = hashlib.new(name)
 
50
            m1.update(aas)
 
51
            m1.update(bees)
 
52
            m1.update(cees)
 
53
 
 
54
            m2 = hashlib.new(name)
 
55
            m2.update(aas + bees + cees)
 
56
            self.assertEqual(m1.digest(), m2.digest())
 
57
 
 
58
    def check(self, name, data, digest):
 
59
        # test the direct constructors
 
60
        computed = getattr(hashlib, name)(data).hexdigest()
 
61
        self.assert_(computed == digest)
 
62
        # test the general new() interface
 
63
        computed = hashlib.new(name, data).hexdigest()
 
64
        self.assert_(computed == digest)
 
65
 
 
66
 
 
67
    def test_case_md5_0(self):
 
68
        self.check('md5', '', 'd41d8cd98f00b204e9800998ecf8427e')
 
69
 
 
70
    def test_case_md5_1(self):
 
71
        self.check('md5', 'abc', '900150983cd24fb0d6963f7d28e17f72')
 
72
 
 
73
    def test_case_md5_2(self):
 
74
        self.check('md5', 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
 
75
                   'd174ab98d277d9f5a5611c2c9f419d9f')
 
76
 
 
77
    @precisionbigmemtest(size=_4G + 5, memuse=1)
 
78
    def test_case_md5_huge(self, size):
 
79
        if size == _4G + 5:
 
80
            try:
 
81
                self.check('md5', 'A'*size, 'c9af2dff37468ce5dfee8f2cfc0a9c6d')
 
82
            except OverflowError:
 
83
                pass # 32-bit arch
 
84
 
 
85
    @precisionbigmemtest(size=_4G - 1, memuse=1)
 
86
    def test_case_md5_uintmax(self, size):
 
87
        if size == _4G - 1:
 
88
            try:
 
89
                self.check('md5', 'A'*size, '28138d306ff1b8281f1a9067e1a1a2b3')
 
90
            except OverflowError:
 
91
                pass # 32-bit arch
 
92
 
 
93
    # use the three examples from Federal Information Processing Standards
 
94
    # Publication 180-1, Secure Hash Standard,  1995 April 17
 
95
    # http://www.itl.nist.gov/div897/pubs/fip180-1.htm
 
96
 
 
97
    def test_case_sha1_0(self):
 
98
        self.check('sha1', "",
 
99
                   "da39a3ee5e6b4b0d3255bfef95601890afd80709")
 
100
 
 
101
    def test_case_sha1_1(self):
 
102
        self.check('sha1', "abc",
 
103
                   "a9993e364706816aba3e25717850c26c9cd0d89d")
 
104
 
 
105
    def test_case_sha1_2(self):
 
106
        self.check('sha1', "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
 
107
                   "84983e441c3bd26ebaae4aa1f95129e5e54670f1")
 
108
 
 
109
    def test_case_sha1_3(self):
 
110
        self.check('sha1', "a" * 1000000,
 
111
                   "34aa973cd4c4daa4f61eeb2bdbad27316534016f")
 
112
 
 
113
 
 
114
    # use the examples from Federal Information Processing Standards
 
115
    # Publication 180-2, Secure Hash Standard,  2002 August 1
 
116
    # http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
 
117
 
 
118
    def test_case_sha224_0(self):
 
119
        self.check('sha224', "",
 
120
          "d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f")
 
121
 
 
122
    def test_case_sha224_1(self):
 
123
        self.check('sha224', "abc",
 
124
          "23097d223405d8228642a477bda255b32aadbce4bda0b3f7e36c9da7")
 
125
 
 
126
    def test_case_sha224_2(self):
 
127
        self.check('sha224',
 
128
          "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
 
129
          "75388b16512776cc5dba5da1fd890150b0c6455cb4f58b1952522525")
 
130
 
 
131
    def test_case_sha224_3(self):
 
132
        self.check('sha224', "a" * 1000000,
 
133
          "20794655980c91d8bbb4c1ea97618a4bf03f42581948b2ee4ee7ad67")
 
134
 
 
135
 
 
136
    def test_case_sha256_0(self):
 
137
        self.check('sha256', "",
 
138
          "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855")
 
139
 
 
140
    def test_case_sha256_1(self):
 
141
        self.check('sha256', "abc",
 
142
          "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad")
 
143
 
 
144
    def test_case_sha256_2(self):
 
145
        self.check('sha256',
 
146
          "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
 
147
          "248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1")
 
148
 
 
149
    def test_case_sha256_3(self):
 
150
        self.check('sha256', "a" * 1000000,
 
151
          "cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0")
 
152
 
 
153
 
 
154
    def test_case_sha384_0(self):
 
155
        self.check('sha384', "",
 
156
          "38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da"+
 
157
          "274edebfe76f65fbd51ad2f14898b95b")
 
158
 
 
159
    def test_case_sha384_1(self):
 
160
        self.check('sha384', "abc",
 
161
          "cb00753f45a35e8bb5a03d699ac65007272c32ab0eded1631a8b605a43ff5bed"+
 
162
          "8086072ba1e7cc2358baeca134c825a7")
 
163
 
 
164
    def test_case_sha384_2(self):
 
165
        self.check('sha384',
 
166
                   "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
 
167
                   "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
 
168
          "09330c33f71147e83d192fc782cd1b4753111b173b3b05d22fa08086e3b0f712"+
 
169
          "fcc7c71a557e2db966c3e9fa91746039")
 
170
 
 
171
    def test_case_sha384_3(self):
 
172
        self.check('sha384', "a" * 1000000,
 
173
          "9d0e1809716474cb086e834e310a4a1ced149e9c00f248527972cec5704c2a5b"+
 
174
          "07b8b3dc38ecc4ebae97ddd87f3d8985")
 
175
 
 
176
 
 
177
    def test_case_sha512_0(self):
 
178
        self.check('sha512', "",
 
179
          "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce"+
 
180
          "47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e")
 
181
 
 
182
    def test_case_sha512_1(self):
 
183
        self.check('sha512', "abc",
 
184
          "ddaf35a193617abacc417349ae20413112e6fa4e89a97ea20a9eeee64b55d39a"+
 
185
          "2192992a274fc1a836ba3c23a3feebbd454d4423643ce80e2a9ac94fa54ca49f")
 
186
 
 
187
    def test_case_sha512_2(self):
 
188
        self.check('sha512',
 
189
                   "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"+
 
190
                   "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu",
 
191
          "8e959b75dae313da8cf4f72814fc143f8f7779c6eb9f7fa17299aeadb6889018"+
 
192
          "501d289e4900f7e4331b99dec4b5433ac7d329eeb6dd26545e96e55b874be909")
 
193
 
 
194
    def test_case_sha512_3(self):
 
195
        self.check('sha512', "a" * 1000000,
 
196
          "e718483d0ce769644e2e42c7bc15b4638e1f98b13b2044285632a803afa973eb"+
 
197
          "de0ff244877ea60a4cb0432ce577c31beb009c5c2c49aa2e4eadb217ad8cc09b")
 
198
 
 
199
 
 
200
def test_main():
 
201
    test_support.run_unittest(HashLibTestCase)
 
202
 
 
203
 
 
204
if __name__ == "__main__":
 
205
    test_main()