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
|
from cytoolz import *
import cytoolz
import cytoolz.curried
import pickle
from cytoolz.utils import raises
def test_compose():
f = compose(str, sum)
g = pickle.loads(pickle.dumps(f))
assert f((1, 2)) == g((1, 2))
def test_curry():
f = curry(map)(str)
g = pickle.loads(pickle.dumps(f))
assert list(f((1, 2, 3))) == list(g((1, 2, 3)))
def test_juxt():
f = juxt(str, int, bool)
g = pickle.loads(pickle.dumps(f))
assert f(1) == g(1)
assert f.funcs == g.funcs
def test_complement():
f = complement(bool)
assert f(True) is False
assert f(False) is True
g = pickle.loads(pickle.dumps(f))
assert f(True) == g(True)
assert f(False) == g(False)
def test_instanceproperty():
p = cytoolz.functoolz.InstanceProperty(bool)
assert p.__get__(None) is None
assert p.__get__(0) is False
assert p.__get__(1) is True
p2 = pickle.loads(pickle.dumps(p))
assert p2.__get__(None) is None
assert p2.__get__(0) is False
assert p2.__get__(1) is True
def f(x, y):
return x, y
def test_flip():
flip = pickle.loads(pickle.dumps(cytoolz.functoolz.flip))
assert flip is cytoolz.functoolz.flip
g1 = flip(f)
g2 = pickle.loads(pickle.dumps(g1))
assert g1(1, 2) == g2(1, 2) == f(2, 1)
g1 = flip(f)(1)
g2 = pickle.loads(pickle.dumps(g1))
assert g1(2) == g2(2) == f(2, 1)
def test_curried_exceptions():
# This tests a global curried object that isn't defined in cytoolz.functoolz
merge = pickle.loads(pickle.dumps(cytoolz.curried.merge))
assert merge is cytoolz.curried.merge
@cytoolz.curry
class GlobalCurried(object):
def __init__(self, x, y):
self.x = x
self.y = y
@cytoolz.curry
def f1(self, a, b):
return self.x + self.y + a + b
def g1(self):
pass
def __reduce__(self):
"""Allow us to serialize instances of GlobalCurried"""
return GlobalCurried, (self.x, self.y)
@cytoolz.curry
class NestedCurried(object):
def __init__(self, x, y):
self.x = x
self.y = y
@cytoolz.curry
def f2(self, a, b):
return self.x + self.y + a + b
def g2(self):
pass
def __reduce__(self):
"""Allow us to serialize instances of NestedCurried"""
return GlobalCurried.NestedCurried, (self.x, self.y)
class Nested(object):
def __init__(self, x, y):
self.x = x
self.y = y
@cytoolz.curry
def f3(self, a, b):
return self.x + self.y + a + b
def g3(self):
pass
def test_curried_qualname():
def preserves_identity(obj):
return pickle.loads(pickle.dumps(obj)) is obj
assert preserves_identity(GlobalCurried)
assert preserves_identity(GlobalCurried.func.f1)
assert preserves_identity(GlobalCurried.func.NestedCurried)
assert preserves_identity(GlobalCurried.func.NestedCurried.func.f2)
assert preserves_identity(GlobalCurried.func.Nested.f3)
global_curried1 = GlobalCurried(1)
global_curried2 = pickle.loads(pickle.dumps(global_curried1))
assert global_curried1 is not global_curried2
assert global_curried1(2).f1(3, 4) == global_curried2(2).f1(3, 4) == 10
global_curried3 = global_curried1(2)
global_curried4 = pickle.loads(pickle.dumps(global_curried3))
assert global_curried3 is not global_curried4
assert global_curried3.f1(3, 4) == global_curried4.f1(3, 4) == 10
func1 = global_curried1(2).f1(3)
func2 = pickle.loads(pickle.dumps(func1))
assert func1 is not func2
assert func1(4) == func2(4) == 10
nested_curried1 = GlobalCurried.func.NestedCurried(1)
nested_curried2 = pickle.loads(pickle.dumps(nested_curried1))
assert nested_curried1 is not nested_curried2
assert nested_curried1(2).f2(3, 4) == nested_curried2(2).f2(3, 4) == 10
# If we add `curry.__getattr__` forwarding, the following tests will pass
# if not PY34:
# assert preserves_identity(GlobalCurried.func.g1)
# assert preserves_identity(GlobalCurried.func.NestedCurried.func.g2)
# assert preserves_identity(GlobalCurried.func.Nested)
# assert preserves_identity(GlobalCurried.func.Nested.g3)
#
# # Rely on curry.__getattr__
# assert preserves_identity(GlobalCurried.f1)
# assert preserves_identity(GlobalCurried.NestedCurried)
# assert preserves_identity(GlobalCurried.NestedCurried.f2)
# assert preserves_identity(GlobalCurried.Nested.f3)
# if not PY34:
# assert preserves_identity(GlobalCurried.g1)
# assert preserves_identity(GlobalCurried.NestedCurried.g2)
# assert preserves_identity(GlobalCurried.Nested)
# assert preserves_identity(GlobalCurried.Nested.g3)
#
# nested_curried3 = nested_curried1(2)
# nested_curried4 = pickle.loads(pickle.dumps(nested_curried3))
# assert nested_curried3 is not nested_curried4
# assert nested_curried3.f2(3, 4) == nested_curried4.f2(3, 4) == 10
#
# func1 = nested_curried1(2).f2(3)
# func2 = pickle.loads(pickle.dumps(func1))
# assert func1 is not func2
# assert func1(4) == func2(4) == 10
#
# if not PY34:
# nested3 = GlobalCurried.func.Nested(1, 2)
# nested4 = pickle.loads(pickle.dumps(nested3))
# assert nested3 is not nested4
# assert nested3.f3(3, 4) == nested4.f3(3, 4) == 10
#
# func1 = nested3.f3(3)
# func2 = pickle.loads(pickle.dumps(func1))
# assert func1 is not func2
# assert func1(4) == func2(4) == 10
def test_curried_bad_qualname():
@cytoolz.curry
class Bad(object):
__qualname__ = 'cytoolz.functoolz.not.a.valid.path'
assert raises(pickle.PicklingError, lambda: pickle.dumps(Bad))
|
