summaryrefslogtreecommitdiffstats
path: root/Lib/test/pickletester.py
blob: 01e7a938e2cf859418b3bae36e206a1d8c1d946f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
import unittest
from test_support import TestFailed, have_unicode

class C:
    def __cmp__(self, other):
        return cmp(self.__dict__, other.__dict__)

import __main__
__main__.C = C
C.__module__ = "__main__"

class myint(int):
    def __init__(self, x):
        self.str = str(x)

class initarg(C):
    def __init__(self, a, b):
        self.a = a
        self.b = b

    def __getinitargs__(self):
        return self.a, self.b

# break into multiple strings to avoid confusing font-lock-mode
DATA = """(lp1
I0
aL1L
aF2
ac__builtin__
complex
p2
""" + \
"""(F3
F0
tRp3
aI1
aI-1
aI255
aI-255
aI-256
aI65535
aI-65535
aI-65536
aI2147483647
aI-2147483647
aI-2147483648
a""" + \
"""(S'abc'
p4
g4
""" + \
"""(i__main__
C
p5
""" + \
"""(dp6
S'foo'
p7
I1
sS'bar'
p8
I2
sbg5
tp9
ag9
aI5
a.
"""

BINDATA = ']q\x01(K\x00L1L\nG@\x00\x00\x00\x00\x00\x00\x00' + \
          'c__builtin__\ncomplex\nq\x02(G@\x08\x00\x00\x00\x00\x00' + \
          '\x00G\x00\x00\x00\x00\x00\x00\x00\x00tRq\x03K\x01J\xff\xff' + \
          '\xff\xffK\xffJ\x01\xff\xff\xffJ\x00\xff\xff\xffM\xff\xff' + \
          'J\x01\x00\xff\xffJ\x00\x00\xff\xffJ\xff\xff\xff\x7fJ\x01\x00' + \
          '\x00\x80J\x00\x00\x00\x80(U\x03abcq\x04h\x04(c__main__\n' + \
          'C\nq\x05oq\x06}q\x07(U\x03fooq\x08K\x01U\x03barq\tK\x02ubh' + \
          '\x06tq\nh\nK\x05e.'

def create_data():
    c = C()
    c.foo = 1
    c.bar = 2
    x = [0, 1L, 2.0, 3.0+0j]
    # Append some integer test cases at cPickle.c's internal size
    # cutoffs.
    uint1max = 0xff
    uint2max = 0xffff
    int4max = 0x7fffffff
    x.extend([1, -1,
              uint1max, -uint1max, -uint1max-1,
              uint2max, -uint2max, -uint2max-1,
               int4max,  -int4max,  -int4max-1])
    y = ('abc', 'abc', c, c)
    x.append(y)
    x.append(y)
    x.append(5)
    return x

class AbstractPickleTests(unittest.TestCase):

    _testdata = create_data()

    def setUp(self):
        # subclass must define self.dumps, self.loads, self.error
        pass

    def test_misc(self):
        # test various datatypes not tested by testdata
        x = myint(4)
        s = self.dumps(x)
        y = self.loads(s)
        self.assertEqual(x, y)

        x = (1, ())
        s = self.dumps(x)
        y = self.loads(s)
        self.assertEqual(x, y)

        x = initarg(1, x)
        s = self.dumps(x)
        y = self.loads(s)
        self.assertEqual(x, y)

        # XXX test __reduce__ protocol?

    def test_identity(self):
        s = self.dumps(self._testdata)
        x = self.loads(s)
        self.assertEqual(x, self._testdata)

    def test_constant(self):
        x = self.loads(DATA)
        self.assertEqual(x, self._testdata)
        x = self.loads(BINDATA)
        self.assertEqual(x, self._testdata)

    def test_binary(self):
        s = self.dumps(self._testdata, 1)
        x = self.loads(s)
        self.assertEqual(x, self._testdata)

    def test_recursive_list(self):
        l = []
        l.append(l)
        s = self.dumps(l)
        x = self.loads(s)
        self.assertEqual(x, l)
        self.assertEqual(x, x[0])
        self.assertEqual(id(x), id(x[0]))

    def test_recursive_dict(self):
        d = {}
        d[1] = d
        s = self.dumps(d)
        x = self.loads(s)
        self.assertEqual(x, d)
        self.assertEqual(x[1], x)
        self.assertEqual(id(x[1]), id(x))

    def test_recursive_inst(self):
        i = C()
        i.attr = i
        s = self.dumps(i)
        x = self.loads(s)
        self.assertEqual(x, i)
        self.assertEqual(x.attr, x)
        self.assertEqual(id(x.attr), id(x))

    def test_recursive_multi(self):
        l = []
        d = {1:l}
        i = C()
        i.attr = d
        l.append(i)
        s = self.dumps(l)
        x = self.loads(s)
        self.assertEqual(x, l)
        self.assertEqual(x[0], i)
        self.assertEqual(x[0].attr, d)
        self.assertEqual(x[0].attr[1], x)
        self.assertEqual(x[0].attr[1][0], i)
        self.assertEqual(x[0].attr[1][0].attr, d)

    def test_garyp(self):
        self.assertRaises(self.error, self.loads, 'garyp')

    def test_insecure_strings(self):
        insecure = ["abc", "2 + 2", # not quoted
                    "'abc' + 'def'", # not a single quoted string
                    "'abc", # quote is not closed
                    "'abc\"", # open quote and close quote don't match
                    "'abc'   ?", # junk after close quote
                    # some tests of the quoting rules
                    "'abc\"\''",
                    "'\\\\a\'\'\'\\\'\\\\\''",
                    ]
        for s in insecure:
            buf = "S" + s + "\012p0\012."
            self.assertRaises(ValueError, self.loads, buf)

    if have_unicode:
        def test_unicode(self):
            endcases = [unicode(''), unicode('<\\u>'), unicode('<\\\u1234>'),
                        unicode('<\n>'),  unicode('<\\>')]
            for u in endcases:
                p = self.dumps(u)
                u2 = self.loads(p)
                self.assertEqual(u2, u)

    def test_ints(self):
        import sys
        n = sys.maxint
        while n:
            for expected in (-n, n):
                s = self.dumps(expected)
                n2 = self.loads(s)
                self.assertEqual(expected, n2)
            n = n >> 1

    def test_maxint64(self):
        maxint64 = (1L << 63) - 1
        data = 'I' + str(maxint64) + '\n.'
        got = self.loads(data)
        self.assertEqual(got, maxint64)

        # Try too with a bogus literal.
        data = 'I' + str(maxint64) + 'JUNK\n.'
        self.assertRaises(ValueError, self.loads, data)

    def test_reduce(self):
        pass

    def test_getinitargs(self):
        pass

class AbstractPickleModuleTests(unittest.TestCase):

    def test_dump_closed_file(self):
        import tempfile, os
        fn = tempfile.mktemp()
        f = open(fn, "w")
        f.close()
        self.assertRaises(ValueError, self.module.dump, 123, f)
        os.remove(fn)

    def test_load_closed_file(self):
        import tempfile, os
        fn = tempfile.mktemp()
        f = open(fn, "w")
        f.close()
        self.assertRaises(ValueError, self.module.dump, 123, f)
        os.remove(fn)