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
|
# -*- coding: utf-8 -*-
"""Tests for the key interactiveshell module.
Authors
-------
* Julian Taylor
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2011 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
# stdlib
import sys
import types
import unittest
from IPython.core.inputtransformer import InputTransformer
from IPython.testing.decorators import skipif
from IPython.utils import py3compat
from IPython.testing import tools as tt
# Decorator for interaction loop tests -----------------------------------------
class mock_input_helper(object):
"""Machinery for tests of the main interact loop.
Used by the mock_input decorator.
"""
def __init__(self, testgen):
self.testgen = testgen
self.exception = None
self.ip = get_ipython()
def __enter__(self):
self.orig_raw_input = self.ip.raw_input
self.ip.raw_input = self.fake_input
return self
def __exit__(self, etype, value, tb):
self.ip.raw_input = self.orig_raw_input
def fake_input(self, prompt):
try:
return next(self.testgen)
except StopIteration:
self.ip.exit_now = True
return u''
except:
self.exception = sys.exc_info()
self.ip.exit_now = True
return u''
def mock_input(testfunc):
"""Decorator for tests of the main interact loop.
Write the test as a generator, yield-ing the input strings, which IPython
will see as if they were typed in at the prompt.
"""
def test_method(self):
testgen = testfunc(self)
with mock_input_helper(testgen) as mih:
mih.ip.interact(display_banner=False)
if mih.exception is not None:
# Re-raise captured exception
etype, value, tb = mih.exception
import traceback
traceback.print_tb(tb, file=sys.stdout)
del tb # Avoid reference loop
raise value
return test_method
# Test classes -----------------------------------------------------------------
class InteractiveShellTestCase(unittest.TestCase):
def rl_hist_entries(self, rl, n):
"""Get last n readline history entries as a list"""
return [rl.get_history_item(rl.get_current_history_length() - x)
for x in range(n - 1, -1, -1)]
def test_runs_without_rl(self):
"""Test that function does not throw without readline"""
ip = get_ipython()
ip.has_readline = False
ip.readline = None
ip._replace_rlhist_multiline(u'source', 0)
@skipif(not get_ipython().has_readline, 'no readline')
def test_runs_without_remove_history_item(self):
"""Test that function does not throw on windows without
remove_history_item"""
ip = get_ipython()
if hasattr(ip.readline, 'remove_history_item'):
del ip.readline.remove_history_item
ip._replace_rlhist_multiline(u'source', 0)
@skipif(not get_ipython().has_readline, 'no readline')
@skipif(not hasattr(get_ipython().readline, 'remove_history_item'),
'no remove_history_item')
def test_replace_multiline_hist_disabled(self):
"""Test that multiline replace does nothing if disabled"""
ip = get_ipython()
ip.multiline_history = False
ghist = [u'line1', u'line2']
for h in ghist:
ip.readline.add_history(h)
hlen_b4_cell = ip.readline.get_current_history_length()
hlen_b4_cell = ip._replace_rlhist_multiline(u'sourc€\nsource2',
hlen_b4_cell)
self.assertEqual(ip.readline.get_current_history_length(),
hlen_b4_cell)
hist = self.rl_hist_entries(ip.readline, 2)
self.assertEqual(hist, ghist)
@skipif(not get_ipython().has_readline, 'no readline')
@skipif(not hasattr(get_ipython().readline, 'remove_history_item'),
'no remove_history_item')
def test_replace_multiline_hist_adds(self):
"""Test that multiline replace function adds history"""
ip = get_ipython()
hlen_b4_cell = ip.readline.get_current_history_length()
hlen_b4_cell = ip._replace_rlhist_multiline(u'sourc€', hlen_b4_cell)
self.assertEqual(hlen_b4_cell,
ip.readline.get_current_history_length())
@skipif(not get_ipython().has_readline, 'no readline')
@skipif(not hasattr(get_ipython().readline, 'remove_history_item'),
'no remove_history_item')
def test_replace_multiline_hist_keeps_history(self):
"""Test that multiline replace does not delete history"""
ip = get_ipython()
ip.multiline_history = True
ghist = [u'line1', u'line2']
for h in ghist:
ip.readline.add_history(h)
#start cell
hlen_b4_cell = ip.readline.get_current_history_length()
# nothing added to rl history, should do nothing
hlen_b4_cell = ip._replace_rlhist_multiline(u'sourc€\nsource2',
hlen_b4_cell)
self.assertEqual(ip.readline.get_current_history_length(),
hlen_b4_cell)
hist = self.rl_hist_entries(ip.readline, 2)
self.assertEqual(hist, ghist)
@skipif(not get_ipython().has_readline, 'no readline')
@skipif(not hasattr(get_ipython().readline, 'remove_history_item'),
'no remove_history_item')
def test_replace_multiline_hist_replaces_twice(self):
"""Test that multiline entries are replaced twice"""
ip = get_ipython()
ip.multiline_history = True
ip.readline.add_history(u'line0')
#start cell
hlen_b4_cell = ip.readline.get_current_history_length()
ip.readline.add_history('l€ne1')
ip.readline.add_history('line2')
#replace cell with single line
hlen_b4_cell = ip._replace_rlhist_multiline(u'l€ne1\nline2',
hlen_b4_cell)
ip.readline.add_history('l€ne3')
ip.readline.add_history('line4')
#replace cell with single line
hlen_b4_cell = ip._replace_rlhist_multiline(u'l€ne3\nline4',
hlen_b4_cell)
self.assertEqual(ip.readline.get_current_history_length(),
hlen_b4_cell)
hist = self.rl_hist_entries(ip.readline, 3)
expected = [u'line0', u'l€ne1\nline2', u'l€ne3\nline4']
# perform encoding, in case of casting due to ASCII locale
enc = sys.stdin.encoding or "utf-8"
expected = [ py3compat.unicode_to_str(e, enc) for e in expected ]
self.assertEqual(hist, expected)
@skipif(not get_ipython().has_readline, 'no readline')
@skipif(not hasattr(get_ipython().readline, 'remove_history_item'),
'no remove_history_item')
def test_replace_multiline_hist_replaces_empty_line(self):
"""Test that multiline history skips empty line cells"""
ip = get_ipython()
ip.multiline_history = True
ip.readline.add_history(u'line0')
#start cell
hlen_b4_cell = ip.readline.get_current_history_length()
ip.readline.add_history('l€ne1')
ip.readline.add_history('line2')
hlen_b4_cell = ip._replace_rlhist_multiline(u'l€ne1\nline2',
hlen_b4_cell)
ip.readline.add_history('')
hlen_b4_cell = ip._replace_rlhist_multiline(u'', hlen_b4_cell)
ip.readline.add_history('l€ne3')
hlen_b4_cell = ip._replace_rlhist_multiline(u'l€ne3', hlen_b4_cell)
ip.readline.add_history(' ')
hlen_b4_cell = ip._replace_rlhist_multiline(' ', hlen_b4_cell)
ip.readline.add_history('\t')
ip.readline.add_history('\t ')
hlen_b4_cell = ip._replace_rlhist_multiline('\t', hlen_b4_cell)
ip.readline.add_history('line4')
hlen_b4_cell = ip._replace_rlhist_multiline(u'line4', hlen_b4_cell)
self.assertEqual(ip.readline.get_current_history_length(),
hlen_b4_cell)
hist = self.rl_hist_entries(ip.readline, 4)
# expect no empty cells in history
expected = [u'line0', u'l€ne1\nline2', u'l€ne3', u'line4']
# perform encoding, in case of casting due to ASCII locale
enc = sys.stdin.encoding or "utf-8"
expected = [ py3compat.unicode_to_str(e, enc) for e in expected ]
self.assertEqual(hist, expected)
@mock_input
def test_inputtransformer_syntaxerror(self):
ip = get_ipython()
transformer = SyntaxErrorTransformer()
ip.input_splitter.python_line_transforms.append(transformer)
ip.input_transformer_manager.python_line_transforms.append(transformer)
try:
#raise Exception
with tt.AssertPrints('4', suppress=False):
yield u'print(2*2)'
with tt.AssertPrints('SyntaxError: input contains', suppress=False):
yield u'print(2345) # syntaxerror'
with tt.AssertPrints('16', suppress=False):
yield u'print(4*4)'
finally:
ip.input_splitter.python_line_transforms.remove(transformer)
ip.input_transformer_manager.python_line_transforms.remove(transformer)
class SyntaxErrorTransformer(InputTransformer):
def push(self, line):
pos = line.find('syntaxerror')
if pos >= 0:
e = SyntaxError('input contains "syntaxerror"')
e.text = line
e.offset = pos + 1
raise e
return line
def reset(self):
pass
class TerminalMagicsTestCase(unittest.TestCase):
def test_paste_magics_message(self):
"""Test that an IndentationError while using paste magics doesn't
trigger a message about paste magics and also the opposite."""
ip = get_ipython()
s = ('for a in range(5):\n'
'print(a)')
tm = ip.magics_manager.registry['TerminalMagics']
with tt.AssertPrints("If you want to paste code into IPython, try the "
"%paste and %cpaste magic functions."):
ip.run_cell(s)
with tt.AssertNotPrints("If you want to paste code into IPython, try the "
"%paste and %cpaste magic functions."):
tm.store_or_execute(s, name=None)
def test_paste_magics_blankline(self):
"""Test that code with a blank line doesn't get split (gh-3246)."""
ip = get_ipython()
s = ('def pasted_func(a):\n'
' b = a+1\n'
'\n'
' return b')
tm = ip.magics_manager.registry['TerminalMagics']
tm.store_or_execute(s, name=None)
self.assertEqual(ip.user_ns['pasted_func'](54), 55)
|
