Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_cpickle.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 9a7317ce6db9
children aac26de8b5d0
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1 import cPickle, unittest
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2 from cStringIO import StringIO
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3 from test.pickletester import AbstractPickleTests, AbstractPickleModuleTests
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4 from test.pickletester import AbstractPicklerUnpicklerObjectTests
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5 from test import test_support
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6
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7 class cPickleTests(AbstractPickleTests, AbstractPickleModuleTests):
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8
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9 def setUp(self):
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10 self.dumps = cPickle.dumps
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11 self.loads = cPickle.loads
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12
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13 error = cPickle.BadPickleGet
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14 module = cPickle
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15
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16 class cPicklePicklerTests(AbstractPickleTests):
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17
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18 def dumps(self, arg, proto=0):
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19 f = StringIO()
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20 p = cPickle.Pickler(f, proto)
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21 p.dump(arg)
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22 f.seek(0)
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23 return f.read()
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24
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25 def loads(self, buf):
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26 f = StringIO(buf)
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27 p = cPickle.Unpickler(f)
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28 return p.load()
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29
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30 error = cPickle.BadPickleGet
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31
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32 class cPickleListPicklerTests(AbstractPickleTests):
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33
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34 def dumps(self, arg, proto=0):
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35 p = cPickle.Pickler(proto)
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36 p.dump(arg)
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37 return p.getvalue()
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38
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39 def loads(self, *args):
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40 f = StringIO(args[0])
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41 p = cPickle.Unpickler(f)
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42 return p.load()
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43
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44 error = cPickle.BadPickleGet
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45
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46 class cPickleFastPicklerTests(AbstractPickleTests):
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47
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48 def dumps(self, arg, proto=0):
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49 f = StringIO()
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50 p = cPickle.Pickler(f, proto)
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51 p.fast = 1
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52 p.dump(arg)
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53 f.seek(0)
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54 return f.read()
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55
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56 def loads(self, *args):
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57 f = StringIO(args[0])
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58 p = cPickle.Unpickler(f)
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59 return p.load()
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60
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61 error = cPickle.BadPickleGet
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62
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63 def test_recursive_list(self):
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64 self.assertRaises(ValueError,
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65 AbstractPickleTests.test_recursive_list,
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66 self)
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67
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68 def test_recursive_inst(self):
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69 self.assertRaises(ValueError,
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70 AbstractPickleTests.test_recursive_inst,
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71 self)
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72
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73 def test_recursive_dict(self):
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74 self.assertRaises(ValueError,
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75 AbstractPickleTests.test_recursive_dict,
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76 self)
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77
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78 def test_recursive_multi(self):
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79 self.assertRaises(ValueError,
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80 AbstractPickleTests.test_recursive_multi,
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81 self)
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82
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83 def test_nonrecursive_deep(self):
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84 # If it's not cyclic, it should pickle OK even if the nesting
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85 # depth exceeds PY_CPICKLE_FAST_LIMIT. That happens to be
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86 # 50 today. Jack Jansen reported stack overflow on Mac OS 9
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87 # at 64.
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88 a = []
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89 for i in range(60):
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90 a = [a]
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91 b = self.loads(self.dumps(a))
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92 self.assertEqual(a, b)
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93
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94 class cPicklePicklerUnpicklerObjectTests(AbstractPicklerUnpicklerObjectTests):
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95
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96 pickler_class = cPickle.Pickler
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97 unpickler_class = cPickle.Unpickler
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98
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99
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100 class Node(object):
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101 pass
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102
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103 class cPickleDeepRecursive(unittest.TestCase):
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104 def test_issue2702(self):
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105 # This should raise a RecursionLimit but in some
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106 # platforms (FreeBSD, win32) sometimes raises KeyError instead,
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107 # or just silently terminates the interpreter (=crashes).
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108 nodes = [Node() for i in range(500)]
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109 for n in nodes:
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110 n.connections = list(nodes)
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111 n.connections.remove(n)
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112 self.assertRaises((AttributeError, RuntimeError), cPickle.dumps, n)
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113
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114 def test_issue3179(self):
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115 # Safe test, because I broke this case when fixing the
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116 # behaviour for the previous test.
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117 res=[]
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118 for x in range(1,2000):
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119 res.append(dict(doc=x, similar=[]))
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120 cPickle.dumps(res)
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121
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122
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123 def test_main():
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124 test_support.run_unittest(
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125 cPickleTests,
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126 cPicklePicklerTests,
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127 cPickleListPicklerTests,
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128 cPickleFastPicklerTests,
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129 cPickleDeepRecursive,
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130 cPicklePicklerUnpicklerObjectTests,
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131 )
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132
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bc905a11c148 Covert pickle tests to use unittest.
Jeremy Hylton <jeremy@alum.mit.edu>
parents: 16133
diff changeset
133 if __name__ == "__main__":
21482
76225434a6fe Fix the test control support for the pickle & cPickle tests so the tests run
Fred Drake <fdrake@acm.org>
parents: 20547
diff changeset
134 test_main()