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Viewing changes to bzrlib/tests/test_ui.py

  • Committer: Canonical.com Patch Queue Manager
  • Date: 2009-07-30 14:24:06 UTC
  • mfrom: (4576.1.1 export-to-dir)
  • Revision ID: pqm@pqm.ubuntu.com-20090730142406-wg8gmxpcjz4c1z00
(bialix) Allow 'bzr export' to export into an existing (but empty)
        directory

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bzrlib/tests/test_ui.py
 
1
# Copyright (C) 2005, 2008, 2009 Canonical Ltd
 
2
#
 
3
# This program is free software; you can redistribute it and/or modify
 
4
# it under the terms of the GNU General Public License as published by
 
5
# the Free Software Foundation; either version 2 of the License, or
 
6
# (at your option) any later version.
 
7
#
 
8
# This program is distributed in the hope that it will be useful,
 
9
# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
10
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
11
# GNU General Public License for more details.
 
12
#
 
13
# You should have received a copy of the GNU General Public License
 
14
# along with this program; if not, write to the Free Software
 
15
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
16
 
 
17
"""Tests for the bzrlib ui
 
18
"""
 
19
 
 
20
import os
 
21
from StringIO import StringIO
 
22
import re
 
23
import sys
 
24
import time
 
25
 
 
26
from bzrlib import (
 
27
    errors,
 
28
    tests,
 
29
    ui as _mod_ui,
 
30
    )
 
31
from bzrlib.symbol_versioning import (
 
32
    deprecated_in,
 
33
    )
 
34
from bzrlib.tests import (
 
35
    TestCase,
 
36
    TestUIFactory,
 
37
    StringIOWrapper,
 
38
    )
 
39
from bzrlib.tests.test_progress import (
 
40
    _NonTTYStringIO,
 
41
    _TTYStringIO,
 
42
    )
 
43
from bzrlib.ui import (
 
44
    CannedInputUIFactory,
 
45
    CLIUIFactory,
 
46
    SilentUIFactory,
 
47
    UIFactory,
 
48
    make_ui_for_terminal,
 
49
    )
 
50
from bzrlib.ui.text import (
 
51
    NullProgressView,
 
52
    TextProgressView,
 
53
    TextUIFactory,
 
54
    )
 
55
 
 
56
 
 
57
class UITests(tests.TestCase):
 
58
 
 
59
    def test_text_factory_ascii_password(self):
 
60
        ui = tests.TestUIFactory(stdin='secret\n',
 
61
                                 stdout=tests.StringIOWrapper(),
 
62
                                 stderr=tests.StringIOWrapper())
 
63
        pb = ui.nested_progress_bar()
 
64
        try:
 
65
            self.assertEqual('secret',
 
66
                             self.apply_redirected(ui.stdin, ui.stdout,
 
67
                                                   ui.stderr,
 
68
                                                   ui.get_password))
 
69
            # ': ' is appended to prompt
 
70
            self.assertEqual(': ', ui.stderr.getvalue())
 
71
            self.assertEqual('', ui.stdout.readline())
 
72
            # stdin should be empty
 
73
            self.assertEqual('', ui.stdin.readline())
 
74
        finally:
 
75
            pb.finished()
 
76
 
 
77
    def test_text_factory_utf8_password(self):
 
78
        """Test an utf8 password.
 
79
 
 
80
        We can't predict what encoding users will have for stdin, so we force
 
81
        it to utf8 to test that we transport the password correctly.
 
82
        """
 
83
        ui = tests.TestUIFactory(stdin=u'baz\u1234'.encode('utf8'),
 
84
                                 stdout=tests.StringIOWrapper(),
 
85
                                 stderr=tests.StringIOWrapper())
 
86
        ui.stderr.encoding = ui.stdout.encoding = ui.stdin.encoding = 'utf8'
 
87
        pb = ui.nested_progress_bar()
 
88
        try:
 
89
            password = self.apply_redirected(ui.stdin, ui.stdout, ui.stderr,
 
90
                                             ui.get_password,
 
91
                                             u'Hello \u1234 %(user)s',
 
92
                                             user=u'some\u1234')
 
93
            # We use StringIO objects, we need to decode them
 
94
            self.assertEqual(u'baz\u1234', password.decode('utf8'))
 
95
            self.assertEqual(u'Hello \u1234 some\u1234: ',
 
96
                             ui.stderr.getvalue().decode('utf8'))
 
97
            # stdin and stdout should be empty
 
98
            self.assertEqual('', ui.stdin.readline())
 
99
            self.assertEqual('', ui.stdout.readline())
 
100
        finally:
 
101
            pb.finished()
 
102
 
 
103
    def test_progress_construction(self):
 
104
        """TextUIFactory constructs the right progress view.
 
105
        """
 
106
        for (file_class, term, pb, expected_pb_class) in (
 
107
            # on an xterm, either use them or not as the user requests,
 
108
            # otherwise default on
 
109
            (_TTYStringIO, 'xterm', 'none', NullProgressView),
 
110
            (_TTYStringIO, 'xterm', 'text', TextProgressView),
 
111
            (_TTYStringIO, 'xterm', None, TextProgressView),
 
112
            # on a dumb terminal, again if there's explicit configuration do
 
113
            # it, otherwise default off
 
114
            (_TTYStringIO, 'dumb', 'none', NullProgressView),
 
115
            (_TTYStringIO, 'dumb', 'text', TextProgressView),
 
116
            (_TTYStringIO, 'dumb', None, NullProgressView),
 
117
            # on a non-tty terminal, it's null regardless of $TERM
 
118
            (StringIO, 'xterm', None, NullProgressView),
 
119
            (StringIO, 'dumb', None, NullProgressView),
 
120
            # however, it can still be forced on
 
121
            (StringIO, 'dumb', 'text', TextProgressView),
 
122
            ):
 
123
            os.environ['TERM'] = term
 
124
            if pb is None:
 
125
                if 'BZR_PROGRESS_BAR' in os.environ:
 
126
                    del os.environ['BZR_PROGRESS_BAR']
 
127
            else:
 
128
                os.environ['BZR_PROGRESS_BAR'] = pb
 
129
            stdin = file_class('')
 
130
            stderr = file_class()
 
131
            stdout = file_class()
 
132
            uif = make_ui_for_terminal(stdin, stdout, stderr)
 
133
            self.assertIsInstance(uif, TextUIFactory,
 
134
                "TERM=%s BZR_PROGRESS_BAR=%s uif=%r" % (term, pb, uif,))
 
135
            self.assertIsInstance(uif.make_progress_view(),
 
136
                expected_pb_class,
 
137
                "TERM=%s BZR_PROGRESS_BAR=%s uif=%r" % (term, pb, uif,))
 
138
 
 
139
    def test_text_ui_non_terminal(self):
 
140
        """Even on non-ttys, make_ui_for_terminal gives a text ui."""
 
141
        stdin = _NonTTYStringIO('')
 
142
        stderr = _NonTTYStringIO()
 
143
        stdout = _NonTTYStringIO()
 
144
        for term_type in ['dumb', None, 'xterm']:
 
145
            if term_type is None:
 
146
                del os.environ['TERM']
 
147
            else:
 
148
                os.environ['TERM'] = term_type
 
149
            uif = make_ui_for_terminal(stdin, stdout, stderr)
 
150
            self.assertIsInstance(uif, TextUIFactory,
 
151
                'TERM=%r' % (term_type,))
 
152
 
 
153
    def test_progress_note(self):
 
154
        stderr = StringIO()
 
155
        stdout = StringIO()
 
156
        ui_factory = TextUIFactory(stdin=StringIO(''),
 
157
            stderr=stderr,
 
158
            stdout=stdout)
 
159
        pb = ui_factory.nested_progress_bar()
 
160
        try:
 
161
            result = pb.note('t')
 
162
            self.assertEqual(None, result)
 
163
            self.assertEqual("t\n", stdout.getvalue())
 
164
            # Since there was no update() call, there should be no clear() call
 
165
            self.failIf(re.search(r'^\r {10,}\r$',
 
166
                                  stderr.getvalue()) is not None,
 
167
                        'We cleared the stderr without anything to put there')
 
168
        finally:
 
169
            pb.finished()
 
170
 
 
171
    def test_progress_note_clears(self):
 
172
        stderr = _TTYStringIO()
 
173
        stdout = _TTYStringIO()
 
174
        # so that we get a TextProgressBar
 
175
        os.environ['TERM'] = 'xterm'
 
176
        ui_factory = TextUIFactory(
 
177
            stdin=StringIO(''),
 
178
            stdout=stdout, stderr=stderr)
 
179
        self.assertIsInstance(ui_factory._progress_view,
 
180
            TextProgressView)
 
181
        pb = ui_factory.nested_progress_bar()
 
182
        try:
 
183
            # Create a progress update that isn't throttled
 
184
            pb.update('x', 1, 1)
 
185
            result = pb.note('t')
 
186
            self.assertEqual(None, result)
 
187
            self.assertEqual("t\n", stdout.getvalue())
 
188
            # the exact contents will depend on the terminal width and we don't
 
189
            # care about that right now - but you're probably running it on at
 
190
            # least a 10-character wide terminal :)
 
191
            self.assertContainsRe(stderr.getvalue(), r'\r {10,}\r$')
 
192
        finally:
 
193
            pb.finished()
 
194
 
 
195
    def test_progress_nested(self):
 
196
        # test factory based nested and popping.
 
197
        ui = TextUIFactory(None, None, None)
 
198
        pb1 = ui.nested_progress_bar()
 
199
        pb2 = ui.nested_progress_bar()
 
200
        # You do get a warning if the outermost progress bar wasn't finished
 
201
        # first - it's not clear if this is really useful or if it should just
 
202
        # become orphaned -- mbp 20090120
 
203
        warnings, _ = self.callCatchWarnings(pb1.finished)
 
204
        if len(warnings) != 1:
 
205
            self.fail("unexpected warnings: %r" % (warnings,))
 
206
        pb2.finished()
 
207
        pb1.finished()
 
208
 
 
209
    def test_text_ui_get_boolean(self):
 
210
        stdin = StringIO("y\n" # True
 
211
                         "n\n" # False
 
212
                         "yes with garbage\nY\n" # True
 
213
                         "not an answer\nno\n" # False
 
214
                         "I'm sure!\nyes\n" # True
 
215
                         "NO\n" # False
 
216
                         "foo\n")
 
217
        stdout = StringIO()
 
218
        stderr = StringIO()
 
219
        factory = TextUIFactory(stdin, stdout, stderr)
 
220
        self.assertEqual(True, factory.get_boolean(""))
 
221
        self.assertEqual(False, factory.get_boolean(""))
 
222
        self.assertEqual(True, factory.get_boolean(""))
 
223
        self.assertEqual(False, factory.get_boolean(""))
 
224
        self.assertEqual(True, factory.get_boolean(""))
 
225
        self.assertEqual(False, factory.get_boolean(""))
 
226
        self.assertEqual("foo\n", factory.stdin.read())
 
227
        # stdin should be empty
 
228
        self.assertEqual('', factory.stdin.readline())
 
229
 
 
230
    def test_text_factory_prompt(self):
 
231
        # see <https://launchpad.net/bugs/365891>
 
232
        factory = TextUIFactory(StringIO(), StringIO(), StringIO())
 
233
        factory.prompt('foo %2e')
 
234
        self.assertEqual('', factory.stdout.getvalue())
 
235
        self.assertEqual('foo %2e', factory.stderr.getvalue())
 
236
 
 
237
    def test_text_factory_prompts_and_clears(self):
 
238
        # a get_boolean call should clear the pb before prompting
 
239
        out = _TTYStringIO()
 
240
        os.environ['TERM'] = 'xterm'
 
241
        factory = TextUIFactory(stdin=StringIO("yada\ny\n"), stdout=out, stderr=out)
 
242
        pb = factory.nested_progress_bar()
 
243
        pb.show_bar = False
 
244
        pb.show_spinner = False
 
245
        pb.show_count = False
 
246
        pb.update("foo", 0, 1)
 
247
        self.assertEqual(True,
 
248
                         self.apply_redirected(None, factory.stdout,
 
249
                                               factory.stdout,
 
250
                                               factory.get_boolean,
 
251
                                               "what do you want"))
 
252
        output = out.getvalue()
 
253
        self.assertContainsRe(factory.stdout.getvalue(),
 
254
            "foo *\r\r  *\r*")
 
255
        self.assertContainsRe(factory.stdout.getvalue(),
 
256
            r"what do you want\? \[y/n\]: what do you want\? \[y/n\]: ")
 
257
        # stdin should have been totally consumed
 
258
        self.assertEqual('', factory.stdin.readline())
 
259
 
 
260
    def test_text_tick_after_update(self):
 
261
        ui_factory = TextUIFactory(stdout=StringIO(), stderr=StringIO())
 
262
        pb = ui_factory.nested_progress_bar()
 
263
        try:
 
264
            pb.update('task', 0, 3)
 
265
            # Reset the clock, so that it actually tries to repaint itself
 
266
            ui_factory._progress_view._last_repaint = time.time() - 1.0
 
267
            pb.tick()
 
268
        finally:
 
269
            pb.finished()
 
270
 
 
271
    def test_text_ui_getusername(self):
 
272
        factory = TextUIFactory(None, None, None)
 
273
        factory.stdin = StringIO("someuser\n\n")
 
274
        factory.stdout = StringIO()
 
275
        factory.stderr = StringIO()
 
276
        factory.stdout.encoding = "utf8"
 
277
        # there is no output from the base factory
 
278
        self.assertEqual("someuser",
 
279
                         factory.get_username('Hello %(host)s', host='some'))
 
280
        self.assertEquals("Hello some: ", factory.stderr.getvalue())
 
281
        self.assertEquals('', factory.stdout.getvalue())
 
282
        self.assertEqual("", factory.get_username("Gebruiker"))
 
283
        # stdin should be empty
 
284
        self.assertEqual('', factory.stdin.readline())
 
285
 
 
286
    def test_text_ui_getusername_utf8(self):
 
287
        ui = tests.TestUIFactory(stdin=u'someuser\u1234'.encode('utf8'),
 
288
                                 stdout=tests.StringIOWrapper(),
 
289
                                 stderr=tests.StringIOWrapper())
 
290
        ui.stderr.encoding = ui.stdout.encoding = ui.stdin.encoding = "utf8"
 
291
        pb = ui.nested_progress_bar()
 
292
        try:
 
293
            # there is no output from the base factory
 
294
            username = self.apply_redirected(ui.stdin, ui.stdout, ui.stderr,
 
295
                ui.get_username, u'Hello\u1234 %(host)s', host=u'some\u1234')
 
296
            self.assertEquals(u"someuser\u1234", username.decode('utf8'))
 
297
            self.assertEquals(u"Hello\u1234 some\u1234: ",
 
298
                              ui.stderr.getvalue().decode("utf8"))
 
299
            self.assertEquals('', ui.stdout.getvalue())
 
300
        finally:
 
301
            pb.finished()
 
302
 
 
303
 
 
304
class CLIUITests(TestCase):
 
305
 
 
306
    def test_cli_factory_deprecated(self):
 
307
        uif = self.applyDeprecated(deprecated_in((1, 18, 0)),
 
308
            CLIUIFactory,
 
309
            StringIO(), StringIO(), StringIO())
 
310
        self.assertIsInstance(uif, UIFactory)
 
311
 
 
312
 
 
313
class SilentUITests(TestCase):
 
314
 
 
315
    def test_silent_factory_get_password(self):
 
316
        # A silent factory that can't do user interaction can't get a
 
317
        # password.  Possibly it should raise a more specific error but it
 
318
        # can't succeed.
 
319
        ui = SilentUIFactory()
 
320
        stdout = StringIO()
 
321
        self.assertRaises(
 
322
            NotImplementedError,
 
323
            self.apply_redirected,
 
324
            None, stdout, stdout, ui.get_password)
 
325
        # and it didn't write anything out either
 
326
        self.assertEqual('', stdout.getvalue())
 
327
 
 
328
    def test_silent_ui_getbool(self):
 
329
        factory = SilentUIFactory()
 
330
        stdout = StringIO()
 
331
        self.assertRaises(
 
332
            NotImplementedError,
 
333
            self.apply_redirected,
 
334
            None, stdout, stdout, factory.get_boolean, "foo")
 
335
 
 
336
 
 
337
class CannedInputUIFactoryTests(TestCase):
 
338
    
 
339
    def test_canned_input_get_input(self):
 
340
        uif = CannedInputUIFactory([True, 'mbp', 'password'])
 
341
        self.assertEqual(uif.get_boolean('Extra cheese?'), True)
 
342
        self.assertEqual(uif.get_username('Enter your user name'), 'mbp')
 
343
        self.assertEqual(uif.get_password('Password for %(host)s', host='example.com'),
 
344
            'password')
 
345
 
 
346
 
 
347
class TestBoolFromString(tests.TestCase):
 
348
 
 
349
    def assertIsTrue(self, s, accepted_values=None):
 
350
        res = _mod_ui.bool_from_string(s, accepted_values=accepted_values)
 
351
        self.assertEquals(True, res)
 
352
 
 
353
    def assertIsFalse(self, s, accepted_values=None):
 
354
        res = _mod_ui.bool_from_string(s, accepted_values=accepted_values)
 
355
        self.assertEquals(False, res)
 
356
 
 
357
    def assertIsNone(self, s, accepted_values=None):
 
358
        res = _mod_ui.bool_from_string(s, accepted_values=accepted_values)
 
359
        self.assertIs(None, res)
 
360
 
 
361
    def test_know_valid_values(self):
 
362
        self.assertIsTrue('true')
 
363
        self.assertIsFalse('false')
 
364
        self.assertIsTrue('1')
 
365
        self.assertIsFalse('0')
 
366
        self.assertIsTrue('on')
 
367
        self.assertIsFalse('off')
 
368
        self.assertIsTrue('yes')
 
369
        self.assertIsFalse('no')
 
370
        self.assertIsTrue('y')
 
371
        self.assertIsFalse('n')
 
372
        # Also try some case variations
 
373
        self.assertIsTrue('True')
 
374
        self.assertIsFalse('False')
 
375
        self.assertIsTrue('On')
 
376
        self.assertIsFalse('Off')
 
377
        self.assertIsTrue('ON')
 
378
        self.assertIsFalse('OFF')
 
379
        self.assertIsTrue('oN')
 
380
        self.assertIsFalse('oFf')
 
381
 
 
382
    def test_invalid_values(self):
 
383
        self.assertIsNone(None)
 
384
        self.assertIsNone('doubt')
 
385
        self.assertIsNone('frue')
 
386
        self.assertIsNone('talse')
 
387
        self.assertIsNone('42')
 
388
 
 
389
    def test_provided_values(self):
 
390
        av = dict(y=True, n=False, yes=True, no=False)
 
391
        self.assertIsTrue('y', av)
 
392
        self.assertIsTrue('Y', av)
 
393
        self.assertIsTrue('Yes', av)
 
394
        self.assertIsFalse('n', av)
 
395
        self.assertIsFalse('N', av)
 
396
        self.assertIsFalse('No', av)
 
397
        self.assertIsNone('1', av)
 
398
        self.assertIsNone('0', av)
 
399
        self.assertIsNone('on', av)
 
400
        self.assertIsNone('off', av)