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1 | """test serialization tools""" |
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1 | """test serialization tools""" | |
2 |
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2 | |||
3 | #------------------------------------------------------------------------------- |
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3 | # Copyright (c) IPython Development Team. | |
4 | # Copyright (C) 2011 The IPython Development Team |
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4 | # Distributed under the terms of the Modified BSD License. | |
5 | # |
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6 | # Distributed under the terms of the BSD License. The full license is in |
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7 | # the file COPYING, distributed as part of this software. |
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8 | #------------------------------------------------------------------------------- |
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9 |
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10 | #------------------------------------------------------------------------------- |
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11 | # Imports |
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12 | #------------------------------------------------------------------------------- |
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13 |
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5 | |||
14 | import pickle |
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6 | import pickle | |
15 | from collections import namedtuple |
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7 | from collections import namedtuple | |
16 |
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8 | |||
17 | import nose.tools as nt |
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9 | import nose.tools as nt | |
18 |
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10 | |||
19 | # from unittest import TestCaes |
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11 | # from unittest import TestCaes | |
20 | from IPython.kernel.zmq.serialize import serialize_object, unserialize_object |
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12 | from IPython.kernel.zmq.serialize import serialize_object, unserialize_object | |
21 | from IPython.testing import decorators as dec |
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13 | from IPython.testing import decorators as dec | |
22 | from IPython.utils.pickleutil import CannedArray, CannedClass |
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14 | from IPython.utils.pickleutil import CannedArray, CannedClass | |
23 | from IPython.utils.py3compat import iteritems |
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15 | from IPython.utils.py3compat import iteritems | |
24 | from IPython.parallel import interactive |
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16 | from IPython.parallel import interactive | |
25 |
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17 | |||
26 | #------------------------------------------------------------------------------- |
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18 | #------------------------------------------------------------------------------- | |
27 | # Globals and Utilities |
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19 | # Globals and Utilities | |
28 | #------------------------------------------------------------------------------- |
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20 | #------------------------------------------------------------------------------- | |
29 |
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21 | |||
30 | def roundtrip(obj): |
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22 | def roundtrip(obj): | |
31 | """roundtrip an object through serialization""" |
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23 | """roundtrip an object through serialization""" | |
32 | bufs = serialize_object(obj) |
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24 | bufs = serialize_object(obj) | |
33 | obj2, remainder = unserialize_object(bufs) |
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25 | obj2, remainder = unserialize_object(bufs) | |
34 | nt.assert_equals(remainder, []) |
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26 | nt.assert_equals(remainder, []) | |
35 | return obj2 |
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27 | return obj2 | |
36 |
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28 | |||
37 | class C(object): |
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29 | class C(object): | |
38 | """dummy class for """ |
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30 | """dummy class for """ | |
39 |
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31 | |||
40 | def __init__(self, **kwargs): |
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32 | def __init__(self, **kwargs): | |
41 | for key,value in iteritems(kwargs): |
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33 | for key,value in iteritems(kwargs): | |
42 | setattr(self, key, value) |
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34 | setattr(self, key, value) | |
43 |
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35 | |||
44 | SHAPES = ((100,), (1024,10), (10,8,6,5), (), (0,)) |
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36 | SHAPES = ((100,), (1024,10), (10,8,6,5), (), (0,)) | |
45 | DTYPES = ('uint8', 'float64', 'int32', [('g', 'float32')], '|S10') |
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37 | DTYPES = ('uint8', 'float64', 'int32', [('g', 'float32')], '|S10') | |
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38 | ||||
46 | #------------------------------------------------------------------------------- |
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39 | #------------------------------------------------------------------------------- | |
47 | # Tests |
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40 | # Tests | |
48 | #------------------------------------------------------------------------------- |
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41 | #------------------------------------------------------------------------------- | |
49 |
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42 | |||
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43 | def new_array(shape, dtype): | |||
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44 | import numpy | |||
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45 | return numpy.random.random(shape).astype(dtype) | |||
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46 | ||||
50 | def test_roundtrip_simple(): |
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47 | def test_roundtrip_simple(): | |
51 | for obj in [ |
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48 | for obj in [ | |
52 | 'hello', |
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49 | 'hello', | |
53 | dict(a='b', b=10), |
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50 | dict(a='b', b=10), | |
54 | [1,2,'hi'], |
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51 | [1,2,'hi'], | |
55 | (b'123', 'hello'), |
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52 | (b'123', 'hello'), | |
56 | ]: |
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53 | ]: | |
57 | obj2 = roundtrip(obj) |
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54 | obj2 = roundtrip(obj) | |
58 | nt.assert_equal(obj, obj2) |
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55 | nt.assert_equal(obj, obj2) | |
59 |
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56 | |||
60 | def test_roundtrip_nested(): |
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57 | def test_roundtrip_nested(): | |
61 | for obj in [ |
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58 | for obj in [ | |
62 | dict(a=range(5), b={1:b'hello'}), |
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59 | dict(a=range(5), b={1:b'hello'}), | |
63 | [range(5),[range(3),(1,[b'whoda'])]], |
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60 | [range(5),[range(3),(1,[b'whoda'])]], | |
64 | ]: |
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61 | ]: | |
65 | obj2 = roundtrip(obj) |
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62 | obj2 = roundtrip(obj) | |
66 | nt.assert_equal(obj, obj2) |
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63 | nt.assert_equal(obj, obj2) | |
67 |
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64 | |||
68 | def test_roundtrip_buffered(): |
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65 | def test_roundtrip_buffered(): | |
69 | for obj in [ |
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66 | for obj in [ | |
70 | dict(a=b"x"*1025), |
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67 | dict(a=b"x"*1025), | |
71 | b"hello"*500, |
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68 | b"hello"*500, | |
72 | [b"hello"*501, 1,2,3] |
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69 | [b"hello"*501, 1,2,3] | |
73 | ]: |
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70 | ]: | |
74 | bufs = serialize_object(obj) |
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71 | bufs = serialize_object(obj) | |
75 | nt.assert_equal(len(bufs), 2) |
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72 | nt.assert_equal(len(bufs), 2) | |
76 | obj2, remainder = unserialize_object(bufs) |
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73 | obj2, remainder = unserialize_object(bufs) | |
77 | nt.assert_equal(remainder, []) |
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74 | nt.assert_equal(remainder, []) | |
78 | nt.assert_equal(obj, obj2) |
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75 | nt.assert_equal(obj, obj2) | |
79 |
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76 | |||
80 | def _scrub_nan(A): |
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81 | """scrub nans out of empty arrays |
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82 |
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83 | since nan != nan |
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84 | """ |
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85 | import numpy |
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86 | if A.dtype.fields and A.shape: |
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87 | for field in A.dtype.fields.keys(): |
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88 | try: |
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89 | A[field][numpy.isnan(A[field])] = 0 |
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90 | except (TypeError, NotImplementedError): |
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91 | # e.g. str dtype |
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92 | pass |
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93 |
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94 | @dec.skip_without('numpy') |
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77 | @dec.skip_without('numpy') | |
95 | def test_numpy(): |
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78 | def test_numpy(): | |
96 | import numpy |
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79 | import numpy | |
97 | from numpy.testing.utils import assert_array_equal |
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80 | from numpy.testing.utils import assert_array_equal | |
98 | for shape in SHAPES: |
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81 | for shape in SHAPES: | |
99 | for dtype in DTYPES: |
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82 | for dtype in DTYPES: | |
100 |
A = n |
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83 | A = new_array(shape, dtype=dtype) | |
101 | _scrub_nan(A) |
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102 | bufs = serialize_object(A) |
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84 | bufs = serialize_object(A) | |
103 | B, r = unserialize_object(bufs) |
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85 | B, r = unserialize_object(bufs) | |
104 | nt.assert_equal(r, []) |
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86 | nt.assert_equal(r, []) | |
105 | nt.assert_equal(A.shape, B.shape) |
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87 | nt.assert_equal(A.shape, B.shape) | |
106 | nt.assert_equal(A.dtype, B.dtype) |
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88 | nt.assert_equal(A.dtype, B.dtype) | |
107 | assert_array_equal(A,B) |
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89 | assert_array_equal(A,B) | |
108 |
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90 | |||
109 | @dec.skip_without('numpy') |
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91 | @dec.skip_without('numpy') | |
110 | def test_recarray(): |
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92 | def test_recarray(): | |
111 | import numpy |
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93 | import numpy | |
112 | from numpy.testing.utils import assert_array_equal |
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94 | from numpy.testing.utils import assert_array_equal | |
113 | for shape in SHAPES: |
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95 | for shape in SHAPES: | |
114 | for dtype in [ |
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96 | for dtype in [ | |
115 | [('f', float), ('s', '|S10')], |
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97 | [('f', float), ('s', '|S10')], | |
116 | [('n', int), ('s', '|S1'), ('u', 'uint32')], |
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98 | [('n', int), ('s', '|S1'), ('u', 'uint32')], | |
117 | ]: |
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99 | ]: | |
118 |
A = n |
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100 | A = new_array(shape, dtype=dtype) | |
119 | _scrub_nan(A) |
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120 |
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101 | |||
121 | bufs = serialize_object(A) |
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102 | bufs = serialize_object(A) | |
122 | B, r = unserialize_object(bufs) |
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103 | B, r = unserialize_object(bufs) | |
123 | nt.assert_equal(r, []) |
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104 | nt.assert_equal(r, []) | |
124 | nt.assert_equal(A.shape, B.shape) |
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105 | nt.assert_equal(A.shape, B.shape) | |
125 | nt.assert_equal(A.dtype, B.dtype) |
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106 | nt.assert_equal(A.dtype, B.dtype) | |
126 | assert_array_equal(A,B) |
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107 | assert_array_equal(A,B) | |
127 |
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108 | |||
128 | @dec.skip_without('numpy') |
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109 | @dec.skip_without('numpy') | |
129 | def test_numpy_in_seq(): |
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110 | def test_numpy_in_seq(): | |
130 | import numpy |
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111 | import numpy | |
131 | from numpy.testing.utils import assert_array_equal |
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112 | from numpy.testing.utils import assert_array_equal | |
132 | for shape in SHAPES: |
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113 | for shape in SHAPES: | |
133 | for dtype in DTYPES: |
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114 | for dtype in DTYPES: | |
134 |
A = n |
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115 | A = new_array(shape, dtype=dtype) | |
135 | _scrub_nan(A) |
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136 | bufs = serialize_object((A,1,2,b'hello')) |
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116 | bufs = serialize_object((A,1,2,b'hello')) | |
137 | canned = pickle.loads(bufs[0]) |
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117 | canned = pickle.loads(bufs[0]) | |
138 | nt.assert_is_instance(canned[0], CannedArray) |
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118 | nt.assert_is_instance(canned[0], CannedArray) | |
139 | tup, r = unserialize_object(bufs) |
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119 | tup, r = unserialize_object(bufs) | |
140 | B = tup[0] |
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120 | B = tup[0] | |
141 | nt.assert_equal(r, []) |
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121 | nt.assert_equal(r, []) | |
142 | nt.assert_equal(A.shape, B.shape) |
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122 | nt.assert_equal(A.shape, B.shape) | |
143 | nt.assert_equal(A.dtype, B.dtype) |
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123 | nt.assert_equal(A.dtype, B.dtype) | |
144 | assert_array_equal(A,B) |
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124 | assert_array_equal(A,B) | |
145 |
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125 | |||
146 | @dec.skip_without('numpy') |
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126 | @dec.skip_without('numpy') | |
147 | def test_numpy_in_dict(): |
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127 | def test_numpy_in_dict(): | |
148 | import numpy |
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128 | import numpy | |
149 | from numpy.testing.utils import assert_array_equal |
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129 | from numpy.testing.utils import assert_array_equal | |
150 | for shape in SHAPES: |
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130 | for shape in SHAPES: | |
151 | for dtype in DTYPES: |
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131 | for dtype in DTYPES: | |
152 |
A = n |
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132 | A = new_array(shape, dtype=dtype) | |
153 | _scrub_nan(A) |
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154 | bufs = serialize_object(dict(a=A,b=1,c=range(20))) |
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133 | bufs = serialize_object(dict(a=A,b=1,c=range(20))) | |
155 | canned = pickle.loads(bufs[0]) |
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134 | canned = pickle.loads(bufs[0]) | |
156 | nt.assert_is_instance(canned['a'], CannedArray) |
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135 | nt.assert_is_instance(canned['a'], CannedArray) | |
157 | d, r = unserialize_object(bufs) |
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136 | d, r = unserialize_object(bufs) | |
158 | B = d['a'] |
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137 | B = d['a'] | |
159 | nt.assert_equal(r, []) |
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138 | nt.assert_equal(r, []) | |
160 | nt.assert_equal(A.shape, B.shape) |
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139 | nt.assert_equal(A.shape, B.shape) | |
161 | nt.assert_equal(A.dtype, B.dtype) |
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140 | nt.assert_equal(A.dtype, B.dtype) | |
162 | assert_array_equal(A,B) |
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141 | assert_array_equal(A,B) | |
163 |
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142 | |||
164 | def test_class(): |
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143 | def test_class(): | |
165 | @interactive |
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144 | @interactive | |
166 | class C(object): |
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145 | class C(object): | |
167 | a=5 |
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146 | a=5 | |
168 | bufs = serialize_object(dict(C=C)) |
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147 | bufs = serialize_object(dict(C=C)) | |
169 | canned = pickle.loads(bufs[0]) |
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148 | canned = pickle.loads(bufs[0]) | |
170 | nt.assert_is_instance(canned['C'], CannedClass) |
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149 | nt.assert_is_instance(canned['C'], CannedClass) | |
171 | d, r = unserialize_object(bufs) |
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150 | d, r = unserialize_object(bufs) | |
172 | C2 = d['C'] |
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151 | C2 = d['C'] | |
173 | nt.assert_equal(C2.a, C.a) |
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152 | nt.assert_equal(C2.a, C.a) | |
174 |
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153 | |||
175 | def test_class_oldstyle(): |
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154 | def test_class_oldstyle(): | |
176 | @interactive |
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155 | @interactive | |
177 | class C: |
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156 | class C: | |
178 | a=5 |
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157 | a=5 | |
179 |
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158 | |||
180 | bufs = serialize_object(dict(C=C)) |
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159 | bufs = serialize_object(dict(C=C)) | |
181 | canned = pickle.loads(bufs[0]) |
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160 | canned = pickle.loads(bufs[0]) | |
182 | nt.assert_is_instance(canned['C'], CannedClass) |
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161 | nt.assert_is_instance(canned['C'], CannedClass) | |
183 | d, r = unserialize_object(bufs) |
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162 | d, r = unserialize_object(bufs) | |
184 | C2 = d['C'] |
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163 | C2 = d['C'] | |
185 | nt.assert_equal(C2.a, C.a) |
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164 | nt.assert_equal(C2.a, C.a) | |
186 |
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165 | |||
187 | def test_tuple(): |
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166 | def test_tuple(): | |
188 | tup = (lambda x:x, 1) |
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167 | tup = (lambda x:x, 1) | |
189 | bufs = serialize_object(tup) |
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168 | bufs = serialize_object(tup) | |
190 | canned = pickle.loads(bufs[0]) |
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169 | canned = pickle.loads(bufs[0]) | |
191 | nt.assert_is_instance(canned, tuple) |
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170 | nt.assert_is_instance(canned, tuple) | |
192 | t2, r = unserialize_object(bufs) |
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171 | t2, r = unserialize_object(bufs) | |
193 | nt.assert_equal(t2[0](t2[1]), tup[0](tup[1])) |
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172 | nt.assert_equal(t2[0](t2[1]), tup[0](tup[1])) | |
194 |
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173 | |||
195 | point = namedtuple('point', 'x y') |
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174 | point = namedtuple('point', 'x y') | |
196 |
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175 | |||
197 | def test_namedtuple(): |
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176 | def test_namedtuple(): | |
198 | p = point(1,2) |
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177 | p = point(1,2) | |
199 | bufs = serialize_object(p) |
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178 | bufs = serialize_object(p) | |
200 | canned = pickle.loads(bufs[0]) |
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179 | canned = pickle.loads(bufs[0]) | |
201 | nt.assert_is_instance(canned, point) |
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180 | nt.assert_is_instance(canned, point) | |
202 | p2, r = unserialize_object(bufs, globals()) |
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181 | p2, r = unserialize_object(bufs, globals()) | |
203 | nt.assert_equal(p2.x, p.x) |
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182 | nt.assert_equal(p2.x, p.x) | |
204 | nt.assert_equal(p2.y, p.y) |
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183 | nt.assert_equal(p2.y, p.y) | |
205 |
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184 | |||
206 | def test_list(): |
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185 | def test_list(): | |
207 | lis = [lambda x:x, 1] |
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186 | lis = [lambda x:x, 1] | |
208 | bufs = serialize_object(lis) |
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187 | bufs = serialize_object(lis) | |
209 | canned = pickle.loads(bufs[0]) |
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188 | canned = pickle.loads(bufs[0]) | |
210 | nt.assert_is_instance(canned, list) |
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189 | nt.assert_is_instance(canned, list) | |
211 | l2, r = unserialize_object(bufs) |
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190 | l2, r = unserialize_object(bufs) | |
212 | nt.assert_equal(l2[0](l2[1]), lis[0](lis[1])) |
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191 | nt.assert_equal(l2[0](l2[1]), lis[0](lis[1])) | |
213 |
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192 | |||
214 | def test_class_inheritance(): |
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193 | def test_class_inheritance(): | |
215 | @interactive |
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194 | @interactive | |
216 | class C(object): |
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195 | class C(object): | |
217 | a=5 |
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196 | a=5 | |
218 |
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197 | |||
219 | @interactive |
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198 | @interactive | |
220 | class D(C): |
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199 | class D(C): | |
221 | b=10 |
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200 | b=10 | |
222 |
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201 | |||
223 | bufs = serialize_object(dict(D=D)) |
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202 | bufs = serialize_object(dict(D=D)) | |
224 | canned = pickle.loads(bufs[0]) |
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203 | canned = pickle.loads(bufs[0]) | |
225 | nt.assert_is_instance(canned['D'], CannedClass) |
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204 | nt.assert_is_instance(canned['D'], CannedClass) | |
226 | d, r = unserialize_object(bufs) |
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205 | d, r = unserialize_object(bufs) | |
227 | D2 = d['D'] |
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206 | D2 = d['D'] | |
228 | nt.assert_equal(D2.a, D.a) |
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207 | nt.assert_equal(D2.a, D.a) | |
229 | nt.assert_equal(D2.b, D.b) |
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208 | nt.assert_equal(D2.b, D.b) |
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