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
|
# Copyright 2013 Google Inc. All Rights Reserved.
#
# This file is part of astroid.
#
# logilab-astng is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by the
# Free Software Foundation, either version 2.1 of the License, or (at your
# option) any later version.
#
# logilab-astng is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
# for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with logilab-astng. If not, see <http://www.gnu.org/licenses/>.
"""Tests for basic functionality in astroid.brain."""
from logilab.common.testlib import TestCase, unittest_main
from astroid import MANAGER
from astroid import bases
from astroid import test_utils
import astroid
class HashlibTC(TestCase):
def test_hashlib(self):
"""Tests that brain extensions for hashlib work."""
hashlib_module = MANAGER.ast_from_module_name('hashlib')
for class_name in ['md5', 'sha1']:
class_obj = hashlib_module[class_name]
self.assertIn('update', class_obj)
self.assertIn('digest', class_obj)
self.assertIn('hexdigest', class_obj)
self.assertEqual(len(class_obj['__init__'].args.args), 2)
self.assertEqual(len(class_obj['__init__'].args.defaults), 1)
self.assertEqual(len(class_obj['update'].args.args), 2)
self.assertEqual(len(class_obj['digest'].args.args), 1)
self.assertEqual(len(class_obj['hexdigest'].args.args), 1)
class NamedTupleTest(TestCase):
def test_namedtuple_base(self):
klass = test_utils.extract_node("""
from collections import namedtuple
class X(namedtuple("X", ["a", "b", "c"])):
pass
""")
self.assertEqual(
[anc.name for anc in klass.ancestors()],
['X', 'tuple', 'object'])
for anc in klass.ancestors():
self.assertFalse(anc.parent is None)
def test_namedtuple_inference(self):
klass = test_utils.extract_node("""
from collections import namedtuple
name = "X"
fields = ["a", "b", "c"]
class X(namedtuple(name, fields)):
pass
""")
for base in klass.ancestors():
if base.name == 'X':
break
self.assertItemsEqual(["a", "b", "c"], base.instance_attrs.keys())
def test_namedtuple_inference_failure(self):
klass = test_utils.extract_node("""
from collections import namedtuple
def foo(fields):
return __(namedtuple("foo", fields))
""")
self.assertIs(bases.YES, klass.infer().next())
if __name__ == '__main__':
unittest_main()
|
