forked from bpython/bpython
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtest_inspection.py
More file actions
361 lines (275 loc) · 10.9 KB
/
Copy pathtest_inspection.py
File metadata and controls
361 lines (275 loc) · 10.9 KB
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
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
import inspect
import os
import sys
import unittest
from collections.abc import Sequence
from typing import List
from bpython import inspection
from bpython.test.fodder import encoding_ascii
from bpython.test.fodder import encoding_latin1
from bpython.test.fodder import encoding_utf8
pypy = "PyPy" in sys.version
try:
import numpy
except ImportError:
numpy = None # type: ignore
foo_ascii_only = '''def foo():
"""Test"""
pass
'''
foo_non_ascii = '''def foo():
"""Test äöü"""
pass
'''
class Callable:
def __call__(self):
pass
class Noncallable:
pass
def spam():
pass
class CallableMethod:
def method(self):
pass
class TestInspection(unittest.TestCase):
def test_parsekeywordpairs(self):
# See issue #109
def fails(spam=["-a", "-b"]):
pass
argspec = inspection.getfuncprops("fails", fails)
self.assertIsNotNone(argspec)
defaults = argspec.argspec.defaults
self.assertEqual(str(defaults[0]), '["-a", "-b"]')
def test_pasekeywordpairs_string(self):
def spam(eggs="foo, bar"):
pass
defaults = inspection.getfuncprops("spam", spam).argspec.defaults
self.assertEqual(repr(defaults[0]), '"foo, bar"')
def test_parsekeywordpairs_multiple_keywords(self):
def spam(eggs=23, foobar="yay"):
pass
defaults = inspection.getfuncprops("spam", spam).argspec.defaults
self.assertEqual(repr(defaults[0]), "23")
self.assertEqual(repr(defaults[1]), '"yay"')
def test_pasekeywordpairs_annotation(self):
def spam(eggs: str = "foo, bar"):
pass
defaults = inspection.getfuncprops("spam", spam).argspec.defaults
self.assertEqual(repr(defaults[0]), '"foo, bar"')
def test_get_encoding_ascii(self):
self.assertEqual(inspection.get_encoding(encoding_ascii), "ascii")
self.assertEqual(inspection.get_encoding(encoding_ascii.foo), "ascii")
def test_get_encoding_latin1(self):
self.assertEqual(inspection.get_encoding(encoding_latin1), "latin1")
self.assertEqual(inspection.get_encoding(encoding_latin1.foo), "latin1")
def test_get_encoding_utf8(self):
self.assertEqual(inspection.get_encoding(encoding_utf8), "utf-8")
self.assertEqual(inspection.get_encoding(encoding_utf8.foo), "utf-8")
def test_get_source_ascii(self):
self.assertEqual(inspect.getsource(encoding_ascii.foo), foo_ascii_only)
def test_get_source_utf8(self):
self.assertEqual(inspect.getsource(encoding_utf8.foo), foo_non_ascii)
def test_get_source_latin1(self):
self.assertEqual(inspect.getsource(encoding_latin1.foo), foo_non_ascii)
def test_get_source_file(self):
path = os.path.join(os.path.dirname(__file__), "fodder")
encoding = inspection.get_encoding_file(
os.path.join(path, "encoding_ascii.py")
)
self.assertEqual(encoding, "ascii")
encoding = inspection.get_encoding_file(
os.path.join(path, "encoding_latin1.py")
)
self.assertEqual(encoding, "latin1")
encoding = inspection.get_encoding_file(
os.path.join(path, "encoding_utf8.py")
)
self.assertEqual(encoding, "utf-8")
@unittest.skipIf(pypy, "pypy builtin signatures aren't complete")
def test_getfuncprops_print(self):
props = inspection.getfuncprops("print", print)
self.assertEqual(props.func, "print")
self.assertIn("end", props.argspec.kwonly)
self.assertIn("file", props.argspec.kwonly)
self.assertIn("flush", props.argspec.kwonly)
self.assertIn("sep", props.argspec.kwonly)
self.assertEqual(repr(props.argspec.kwonly_defaults["file"]), "None")
self.assertEqual(repr(props.argspec.kwonly_defaults["flush"]), "False")
@unittest.skipUnless(
numpy is not None and numpy.__version__ >= "1.18",
"requires numpy >= 1.18",
)
def test_getfuncprops_numpy_array(self):
props = inspection.getfuncprops("array", numpy.array)
self.assertEqual(props.func, "array")
# This check might need an update in the future, but at least numpy >= 1.18 has
# np.array(object, dtype=None, *, ...).
self.assertEqual(props.argspec.args, ["object", "dtype"])
def test_issue_966_freestanding(self):
def fun(number, lst=[]):
"""
Return a list of numbers
Example:
========
C.cmethod(1337, [1, 2]) # => [1, 2, 1337]
"""
return lst + [number]
def fun_annotations(number: int, lst: list[int] = []) -> list[int]:
"""
Return a list of numbers
Example:
========
C.cmethod(1337, [1, 2]) # => [1, 2, 1337]
"""
return lst + [number]
props = inspection.getfuncprops("fun", fun)
self.assertEqual(props.func, "fun")
self.assertEqual(props.argspec.args, ["number", "lst"])
self.assertEqual(repr(props.argspec.defaults[0]), "[]")
props = inspection.getfuncprops("fun_annotations", fun_annotations)
self.assertEqual(props.func, "fun_annotations")
self.assertEqual(props.argspec.args, ["number", "lst"])
self.assertEqual(repr(props.argspec.defaults[0]), "[]")
def test_issue_966_class_method(self):
class Issue966(Sequence):
@classmethod
def cmethod(cls, number: int, lst: list[int] = []):
"""
Return a list of numbers
Example:
========
C.cmethod(1337, [1, 2]) # => [1, 2, 1337]
"""
return lst + [number]
@classmethod
def bmethod(cls, number, lst):
"""
Return a list of numbers
Example:
========
C.cmethod(1337, [1, 2]) # => [1, 2, 1337]
"""
return lst + [number]
props = inspection.getfuncprops(
"bmethod", inspection.getattr_safe(Issue966, "bmethod")
)
self.assertEqual(props.func, "bmethod")
self.assertEqual(props.argspec.args, ["number", "lst"])
props = inspection.getfuncprops(
"cmethod", inspection.getattr_safe(Issue966, "cmethod")
)
self.assertEqual(props.func, "cmethod")
self.assertEqual(props.argspec.args, ["number", "lst"])
self.assertEqual(repr(props.argspec.defaults[0]), "[]")
def test_issue_966_static_method(self):
class Issue966(Sequence):
@staticmethod
def cmethod(number: int, lst: list[int] = []):
"""
Return a list of numbers
Example:
========
C.cmethod(1337, [1, 2]) # => [1, 2, 1337]
"""
return lst + [number]
@staticmethod
def bmethod(number, lst):
"""
Return a list of numbers
Example:
========
C.cmethod(1337, [1, 2]) # => [1, 2, 1337]
"""
return lst + [number]
props = inspection.getfuncprops(
"bmethod", inspection.getattr_safe(Issue966, "bmethod")
)
self.assertEqual(props.func, "bmethod")
self.assertEqual(props.argspec.args, ["number", "lst"])
props = inspection.getfuncprops(
"cmethod", inspection.getattr_safe(Issue966, "cmethod")
)
self.assertEqual(props.func, "cmethod")
self.assertEqual(props.argspec.args, ["number", "lst"])
self.assertEqual(repr(props.argspec.defaults[0]), "[]")
class A:
a = "a"
class B(A):
b = "b"
class Property:
@property
def prop(self):
raise AssertionError("Property __get__ executed")
class Slots:
__slots__ = ["s1", "s2", "s3"]
class SlotsSubclass(Slots):
@property
def s4(self):
raise AssertionError("Property __get__ executed")
class OverriddenGetattr:
def __getattr__(self, attr):
raise AssertionError("custom __getattr__ executed")
a = 1
class OverriddenGetattribute:
def __getattribute__(self, attr):
raise AssertionError("custom __getattribute__ executed")
a = 1
class OverriddenMRO:
def __mro__(self):
raise AssertionError("custom mro executed")
a = 1
member_descriptor = type(Slots.s1) # type: ignore
class TestSafeGetAttribute(unittest.TestCase):
def test_lookup_on_object(self):
a = A()
a.x = 1
self.assertEqual(inspection.getattr_safe(a, "x"), 1)
self.assertEqual(inspection.getattr_safe(a, "a"), "a")
b = B()
b.y = 2
self.assertEqual(inspection.getattr_safe(b, "y"), 2)
self.assertEqual(inspection.getattr_safe(b, "a"), "a")
self.assertEqual(inspection.getattr_safe(b, "b"), "b")
self.assertEqual(inspection.hasattr_safe(b, "y"), True)
self.assertEqual(inspection.hasattr_safe(b, "b"), True)
def test_avoid_running_properties(self):
p = Property()
self.assertEqual(inspection.getattr_safe(p, "prop"), Property.prop)
self.assertEqual(inspection.hasattr_safe(p, "prop"), True)
def test_lookup_with_slots(self):
s = Slots()
s.s1 = "s1"
self.assertEqual(inspection.getattr_safe(s, "s1"), "s1")
with self.assertRaises(AttributeError):
inspection.getattr_safe(s, "s2")
self.assertEqual(inspection.hasattr_safe(s, "s1"), True)
self.assertEqual(inspection.hasattr_safe(s, "s2"), False)
def test_lookup_on_slots_classes(self):
sga = inspection.getattr_safe
s = SlotsSubclass()
self.assertIsInstance(sga(Slots, "s1"), member_descriptor)
self.assertIsInstance(sga(SlotsSubclass, "s1"), member_descriptor)
self.assertIsInstance(sga(SlotsSubclass, "s4"), property)
self.assertIsInstance(sga(s, "s4"), property)
self.assertEqual(inspection.hasattr_safe(s, "s1"), False)
self.assertEqual(inspection.hasattr_safe(s, "s4"), True)
def test_lookup_on_overridden_methods(self):
sga = inspection.getattr_safe
self.assertEqual(sga(OverriddenGetattr(), "a"), 1)
self.assertEqual(sga(OverriddenGetattribute(), "a"), 1)
self.assertEqual(sga(OverriddenMRO(), "a"), 1)
with self.assertRaises(AttributeError):
sga(OverriddenGetattr(), "b")
with self.assertRaises(AttributeError):
sga(OverriddenGetattribute(), "b")
with self.assertRaises(AttributeError):
sga(OverriddenMRO(), "b")
self.assertEqual(
inspection.hasattr_safe(OverriddenGetattr(), "b"), False
)
self.assertEqual(
inspection.hasattr_safe(OverriddenGetattribute(), "b"), False
)
self.assertEqual(inspection.hasattr_safe(OverriddenMRO(), "b"), False)
if __name__ == "__main__":
unittest.main()