forked from PythonCharmers/python-future
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtest_utils.py
More file actions
144 lines (114 loc) · 3.93 KB
/
Copy pathtest_utils.py
File metadata and controls
144 lines (114 loc) · 3.93 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
# -*- coding: utf-8 -*-
"""
Tests for the various utility functions and classes in ``future.utils``
"""
from __future__ import absolute_import, unicode_literals, print_function
import sys
from future.builtins import *
from future.utils import (old_div, istext, isbytes, native, PY2, PY3,
native_str, raise_)
from numbers import Integral
from future.tests.base import unittest, skip26
TEST_UNICODE_STR = u'ℝεα∂@ßʟ℮ ☂ℯṧт υηḯ¢☺ḓ℮'
class TestUtils(unittest.TestCase):
def setUp(self):
self.s = TEST_UNICODE_STR
self.s2 = str(self.s)
self.b = b'ABCDEFG'
self.b2 = bytes(self.b)
def test_old_div(self):
"""
Tests whether old_div(a, b) is always equal to Python 2's a / b.
"""
self.assertEqual(old_div(1, 2), 0)
self.assertEqual(old_div(2, 2), 1)
self.assertTrue(isinstance(old_div(2, 2), int))
self.assertEqual(old_div(3, 2), 1)
self.assertTrue(isinstance(old_div(3, 2), int))
self.assertEqual(old_div(3., 2), 1.5)
self.assertTrue(not isinstance(old_div(3., 2), int))
self.assertEqual(old_div(-1, 2.), -0.5)
self.assertTrue(not isinstance(old_div(-1, 2.), int))
with self.assertRaises(ZeroDivisionError):
old_div(0, 0)
with self.assertRaises(ZeroDivisionError):
old_div(1, 0)
def test_native_str(self):
"""
Tests whether native_str is really equal to the platform str.
"""
if PY2:
import __builtin__
builtin_str = __builtin__.str
else:
import builtins
builtin_str = builtins.str
inputs = [b'blah', u'blah', 'blah']
for s in inputs:
self.assertEqual(native_str(s), builtin_str(s))
self.assertTrue(isinstance(native_str(s), builtin_str))
def test_native(self):
a = int(10**20) # long int
b = native(a)
self.assertEqual(a, b)
if PY2:
self.assertEqual(type(b), long)
else:
self.assertEqual(type(b), int)
c = bytes(b'ABC')
d = native(c)
self.assertEqual(c, d)
if PY2:
self.assertEqual(type(d), type(b'Py2 byte-string'))
else:
self.assertEqual(type(d), bytes)
s = str(u'ABC')
t = native(s)
self.assertEqual(s, t)
if PY2:
self.assertEqual(type(t), unicode)
else:
self.assertEqual(type(t), str)
type(s)
def test_istext(self):
self.assertTrue(istext(self.s))
self.assertTrue(istext(self.s2))
self.assertFalse(istext(self.b))
self.assertFalse(istext(self.b2))
def test_isbytes(self):
self.assertTrue(isbytes(self.b))
self.assertTrue(isbytes(self.b2))
self.assertFalse(isbytes(self.s))
self.assertFalse(isbytes(self.s2))
@skip26
@unittest.expectedFailure
def test_raise_(self):
"""
The with_value() test currently fails on Py3
"""
def valerror():
try:
raise ValueError("Apples!")
except Exception as e:
raise_(e)
self.assertRaises(ValueError, valerror)
def with_value():
raise_(IOError, "This is an error")
self.assertRaises(IOError, with_value)
try:
with_value()
except IOError as e:
self.assertEqual(str(e), "This is an error")
def with_traceback():
try:
raise ValueError("An error")
except Exception as e:
_, _, traceback = sys.exc_info()
raise_(IOError, str(e), traceback)
self.assertRaises(IOError, with_traceback)
try:
with_traceback()
except IOError as e:
self.assertEqual(str(e), "An error")
if __name__ == '__main__':
unittest.main()