Repository navigation
Expand file tree
/
Copy pathtest_rlcompleter.py
More file actions
239 lines (203 loc) · 9.82 KB
/
Copy pathtest_rlcompleter.py
File metadata and controls
239 lines (203 loc) · 9.82 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
import unittest
from unittest.mock import patch
import builtins
import types
import rlcompleter
from test.support import MISSING_C_DOCSTRINGS
class CompleteMe:
""" Trivial class used in testing rlcompleter.Completer. """
spam = 1
_ham = 2
class TestRlcompleter(unittest.TestCase):
def setUp(self):
self.stdcompleter = rlcompleter.Completer()
self.completer = rlcompleter.Completer(dict(spam=int,
egg=str,
CompleteMe=CompleteMe))
# forces stdcompleter to bind builtins namespace
self.stdcompleter.complete('', 0)
def test_namespace(self):
class A(dict):
pass
class B(list):
pass
self.assertTrue(self.stdcompleter.use_main_ns)
self.assertFalse(self.completer.use_main_ns)
self.assertFalse(rlcompleter.Completer(A()).use_main_ns)
self.assertRaises(TypeError, rlcompleter.Completer, B((1,)))
def test_global_matches(self):
# test with builtins namespace
self.assertEqual(sorted(self.stdcompleter.global_matches('di')),
[x+'(' for x in dir(builtins) if x.startswith('di')])
self.assertEqual(sorted(self.stdcompleter.global_matches('st')),
[x+'(' for x in dir(builtins) if x.startswith('st')])
self.assertEqual(self.stdcompleter.global_matches('akaksajadhak'), [])
# test with a customized namespace
self.assertEqual(self.completer.global_matches('CompleteM'),
['CompleteMe(' if MISSING_C_DOCSTRINGS else 'CompleteMe()'])
self.assertEqual(self.completer.global_matches('eg'),
['egg('])
# XXX: see issue5256
self.assertEqual(self.completer.global_matches('CompleteM'),
['CompleteMe(' if MISSING_C_DOCSTRINGS else 'CompleteMe()'])
def test_attr_matches(self):
# test with builtins namespace
self.assertEqual(self.stdcompleter.attr_matches('str.s'),
['str.{}('.format(x) for x in dir(str)
if x.startswith('s')])
self.assertEqual(self.stdcompleter.attr_matches('tuple.foospamegg'), [])
def create_expected_for_none():
if not MISSING_C_DOCSTRINGS:
parentheses = ('__init_subclass__', '__class__')
else:
# When `--without-doc-strings` is used, `__class__`
# won't have a known signature.
parentheses = ('__init_subclass__',)
items = set()
for x in dir(None):
if x in parentheses:
items.add(f'None.{x}()')
elif x == '__doc__':
items.add(f'None.{x}')
else:
items.add(f'None.{x}(')
return sorted(items)
expected = create_expected_for_none()
self.assertEqual(self.stdcompleter.attr_matches('None.'), expected)
self.assertEqual(self.stdcompleter.attr_matches('None._'), expected)
self.assertEqual(self.stdcompleter.attr_matches('None.__'), expected)
# test with a customized namespace
self.assertEqual(self.completer.attr_matches('CompleteMe.sp'),
['CompleteMe.spam'])
self.assertEqual(self.completer.attr_matches('Completeme.egg'), [])
self.assertEqual(self.completer.attr_matches('CompleteMe.'),
['CompleteMe.mro()', 'CompleteMe.spam'])
self.assertEqual(self.completer.attr_matches('CompleteMe._'),
['CompleteMe._ham'])
matches = self.completer.attr_matches('CompleteMe.__')
for x in matches:
self.assertStartsWith(x, 'CompleteMe.__')
self.assertIn('CompleteMe.__name__', matches)
self.assertIn('CompleteMe.__new__(', matches)
with patch.object(CompleteMe, "me", CompleteMe, create=True):
self.assertEqual(self.completer.attr_matches('CompleteMe.me.me.sp'),
['CompleteMe.me.me.spam'])
self.assertEqual(self.completer.attr_matches('egg.s'),
['egg.{}('.format(x) for x in dir(str)
if x.startswith('s')])
def test_excessive_getattr(self):
"""Ensure getattr() is invoked no more than once per attribute"""
# note the special case for @property methods below; that is why
# we use __dir__ and __getattr__ in class Foo to create a "magic"
# class attribute 'bar'. This forces `getattr` to call __getattr__
# (which is doesn't necessarily do).
class Foo:
calls = 0
bar = ''
def __getattribute__(self, name):
if name == 'bar':
self.calls += 1
return None
return super().__getattribute__(name)
f = Foo()
completer = rlcompleter.Completer(dict(f=f))
self.assertEqual(completer.complete('f.b', 0), 'f.bar')
self.assertEqual(f.calls, 1)
def test_property_method_not_called(self):
class Foo:
_bar = 0
property_called = False
@property
def bar(self):
self.property_called = True
return self._bar
f = Foo()
completer = rlcompleter.Completer(dict(f=f))
self.assertEqual(completer.complete('f.b', 0), 'f.bar')
self.assertFalse(f.property_called)
def test_released_memoryview_completion_works(self):
mv = memoryview(b"abc")
mv.release()
self.assertIsInstance(type(mv).shape, types.GetSetDescriptorType)
self.assertIsInstance(type(mv).strides, types.GetSetDescriptorType)
completer = rlcompleter.Completer(dict(mv=mv))
matches = completer.attr_matches('mv.')
# These are getset descriptors on memoryview and should be completed
# without evaluating the released-memoryview getters.
self.assertIn('mv.shape', matches)
self.assertIn('mv.strides', matches)
def test_member_descriptor_not_evaluated(self):
class Foo:
__slots__ = ("boom",)
boom_accesses = 0
def __getattribute__(self, name):
if name == "boom":
type(self).boom_accesses += 1
raise RuntimeError("boom access should be skipped")
return super().__getattribute__(name)
self.assertIsInstance(Foo.boom, types.MemberDescriptorType)
completer = rlcompleter.Completer(dict(f=Foo()))
matches = completer.attr_matches('f.')
self.assertIn('f.boom', matches)
self.assertEqual(Foo.boom_accesses, 0)
def test_raising_descriptor_completion_works(self):
class ExplodingDescriptor:
def __init__(self):
self.instance_get_calls = 0
def __get__(self, obj, owner):
if obj is None:
return self
self.instance_get_calls += 1
raise RuntimeError("descriptor getter exploded")
class Foo:
boom = ExplodingDescriptor()
completer = rlcompleter.Completer(dict(f=Foo()))
matches = completer.attr_matches('f.')
self.assertIn('f.boom', matches)
self.assertEqual(Foo.boom.instance_get_calls, 0)
def test_uncreated_attr(self):
# Attributes like properties and slots should be completed even when
# they haven't been created on an instance
class Foo:
__slots__ = ("bar",)
completer = rlcompleter.Completer(dict(f=Foo()))
self.assertEqual(completer.complete('f.', 0), 'f.bar')
@unittest.mock.patch('rlcompleter._readline_available', False)
def test_complete(self):
completer = rlcompleter.Completer()
self.assertEqual(completer.complete('', 0), '\t')
self.assertEqual(completer.complete('a', 0), 'and ')
self.assertEqual(completer.complete('a', 1), 'as ')
self.assertEqual(completer.complete('as', 2), 'assert ')
self.assertEqual(completer.complete('an', 0), 'and ')
self.assertEqual(completer.complete('pa', 0), 'pass')
self.assertEqual(completer.complete('Fa', 0), 'False')
self.assertEqual(completer.complete('el', 0), 'elif ')
self.assertEqual(completer.complete('el', 1), 'else')
self.assertEqual(completer.complete('tr', 0), 'try:')
self.assertEqual(completer.complete('_', 0), '_')
self.assertEqual(completer.complete('match', 0), 'match ')
self.assertEqual(completer.complete('case', 0), 'case ')
def test_duplicate_globals(self):
namespace = {
'False': None, # Keyword vs builtin vs namespace
'assert': None, # Keyword vs namespace
'try': lambda: None, # Keyword vs callable
'memoryview': None, # Callable builtin vs non-callable
'Ellipsis': lambda: None, # Non-callable builtin vs callable
}
completer = rlcompleter.Completer(namespace)
self.assertEqual(completer.complete('False', 0), 'False')
self.assertIsNone(completer.complete('False', 1)) # No duplicates
# Space or colon added due to being a reserved keyword
self.assertEqual(completer.complete('assert', 0), 'assert ')
self.assertIsNone(completer.complete('assert', 1))
self.assertEqual(completer.complete('try', 0), 'try:')
self.assertIsNone(completer.complete('try', 1))
# No opening bracket "(" because we overrode the built-in class
self.assertEqual(completer.complete('memoryview', 0), 'memoryview')
self.assertIsNone(completer.complete('memoryview', 1))
self.assertEqual(completer.complete('Ellipsis', 0), 'Ellipsis()')
self.assertIsNone(completer.complete('Ellipsis', 1))
if __name__ == '__main__':
unittest.main()