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Viewing changes to bzrlib/tests/test_ui.py

  • Committer: John Arbash Meinel
  • Date: 2009-04-23 00:58:30 UTC
  • mfrom: (4300.2.1 1.15-gc-python)
  • mto: This revision was merged to the branch mainline in revision 4301.
  • Revision ID: john@arbash-meinel.com-20090423005830-kkdc31tqjetbj2f0
Bring in the other test cases.
Also, remove the assert statements.

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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
import bzrlib
 
27
import bzrlib.errors as errors
 
28
from bzrlib.progress import (
 
29
    DotsProgressBar,
 
30
    ProgressBarStack,
 
31
    ProgressTask,
 
32
    TTYProgressBar,
 
33
    )
 
34
from bzrlib.symbol_versioning import (
 
35
    deprecated_in,
 
36
    )
 
37
from bzrlib.tests import (
 
38
    TestCase,
 
39
    TestUIFactory,
 
40
    StringIOWrapper,
 
41
    )
 
42
from bzrlib.tests.test_progress import _TTYStringIO
 
43
from bzrlib.ui import (
 
44
    CLIUIFactory,
 
45
    SilentUIFactory,
 
46
    )
 
47
from bzrlib.ui.text import (
 
48
    TextProgressView,
 
49
    TextUIFactory,
 
50
    )
 
51
 
 
52
 
 
53
class UITests(TestCase):
 
54
 
 
55
    def test_silent_factory(self):
 
56
        ui = SilentUIFactory()
 
57
        stdout = StringIO()
 
58
        self.assertEqual(None,
 
59
                         self.apply_redirected(None, stdout, stdout,
 
60
                                               ui.get_password))
 
61
        self.assertEqual('', stdout.getvalue())
 
62
        self.assertEqual(None,
 
63
                         self.apply_redirected(None, stdout, stdout,
 
64
                                               ui.get_password,
 
65
                                               u'Hello\u1234 %(user)s',
 
66
                                               user=u'some\u1234'))
 
67
        self.assertEqual('', stdout.getvalue())
 
68
 
 
69
    def test_text_factory_ascii_password(self):
 
70
        ui = TestUIFactory(stdin='secret\n', stdout=StringIOWrapper())
 
71
        pb = ui.nested_progress_bar()
 
72
        try:
 
73
            self.assertEqual('secret',
 
74
                             self.apply_redirected(ui.stdin, ui.stdout,
 
75
                                                   ui.stdout,
 
76
                                                   ui.get_password))
 
77
            # ': ' is appended to prompt
 
78
            self.assertEqual(': ', ui.stdout.getvalue())
 
79
            # stdin should be empty
 
80
            self.assertEqual('', ui.stdin.readline())
 
81
        finally:
 
82
            pb.finished()
 
83
 
 
84
    def test_text_factory_utf8_password(self):
 
85
        """Test an utf8 password.
 
86
 
 
87
        We can't predict what encoding users will have for stdin, so we force
 
88
        it to utf8 to test that we transport the password correctly.
 
89
        """
 
90
        ui = TestUIFactory(stdin=u'baz\u1234'.encode('utf8'),
 
91
                           stdout=StringIOWrapper())
 
92
        ui.stdin.encoding = 'utf8'
 
93
        ui.stdout.encoding = ui.stdin.encoding
 
94
        pb = ui.nested_progress_bar()
 
95
        try:
 
96
            password = self.apply_redirected(ui.stdin, ui.stdout, ui.stdout,
 
97
                                             ui.get_password,
 
98
                                             u'Hello \u1234 %(user)s',
 
99
                                             user=u'some\u1234')
 
100
            # We use StringIO objects, we need to decode them
 
101
            self.assertEqual(u'baz\u1234', password.decode('utf8'))
 
102
            self.assertEqual(u'Hello \u1234 some\u1234: ',
 
103
                             ui.stdout.getvalue().decode('utf8'))
 
104
            # stdin should be empty
 
105
            self.assertEqual('', ui.stdin.readline())
 
106
        finally:
 
107
            pb.finished()
 
108
 
 
109
    def test_progress_note(self):
 
110
        stderr = StringIO()
 
111
        stdout = StringIO()
 
112
        ui_factory = TextUIFactory(stdin=StringIO(''),
 
113
            stderr=stderr,
 
114
            stdout=stdout)
 
115
        pb = ui_factory.nested_progress_bar()
 
116
        try:
 
117
            result = pb.note('t')
 
118
            self.assertEqual(None, result)
 
119
            self.assertEqual("t\n", stdout.getvalue())
 
120
            # Since there was no update() call, there should be no clear() call
 
121
            self.failIf(re.search(r'^\r {10,}\r$',
 
122
                                  stderr.getvalue()) is not None,
 
123
                        'We cleared the stderr without anything to put there')
 
124
        finally:
 
125
            pb.finished()
 
126
 
 
127
    def test_progress_note_clears(self):
 
128
        stderr = StringIO()
 
129
        stdout = StringIO()
 
130
        # The PQM redirects the output to a file, so it
 
131
        # defaults to creating a Dots progress bar. we
 
132
        # need to force it to believe we are a TTY
 
133
        ui_factory = TextUIFactory(
 
134
            stdin=StringIO(''),
 
135
            stdout=stdout, stderr=stderr)
 
136
        pb = ui_factory.nested_progress_bar()
 
137
        try:
 
138
            # Create a progress update that isn't throttled
 
139
            pb.update('x', 1, 1)
 
140
            result = pb.note('t')
 
141
            self.assertEqual(None, result)
 
142
            self.assertEqual("t\n", stdout.getvalue())
 
143
            # the exact contents will depend on the terminal width and we don't
 
144
            # care about that right now - but you're probably running it on at
 
145
            # least a 10-character wide terminal :)
 
146
            self.assertContainsRe(stderr.getvalue(), r'\r {10,}\r$')
 
147
        finally:
 
148
            pb.finished()
 
149
 
 
150
    def test_progress_nested(self):
 
151
        # test factory based nested and popping.
 
152
        ui = TextUIFactory(None, None, None)
 
153
        pb1 = ui.nested_progress_bar()
 
154
        pb2 = ui.nested_progress_bar()
 
155
        # You do get a warning if the outermost progress bar wasn't finished
 
156
        # first - it's not clear if this is really useful or if it should just
 
157
        # become orphaned -- mbp 20090120
 
158
        warnings, _ = self.callCatchWarnings(pb1.finished)
 
159
        if len(warnings) != 1:
 
160
            self.fail("unexpected warnings: %r" % (warnings,))
 
161
        pb2.finished()
 
162
        pb1.finished()
 
163
 
 
164
    def test_progress_stack(self):
 
165
        # test the progress bar stack which the default text factory
 
166
        # uses.
 
167
        stderr = StringIO()
 
168
        stdout = StringIO()
 
169
        # make a stack, which accepts parameters like a pb.
 
170
        stack = self.applyDeprecated(
 
171
            deprecated_in((1, 12, 0)),
 
172
            ProgressBarStack,
 
173
            to_file=stderr, to_messages_file=stdout)
 
174
        # but is not one
 
175
        self.assertFalse(getattr(stack, 'note', False))
 
176
        pb1 = stack.get_nested()
 
177
        pb2 = stack.get_nested()
 
178
        warnings, _ = self.callCatchWarnings(pb1.finished)
 
179
        self.assertEqual(len(warnings), 1)
 
180
        pb2.finished()
 
181
        pb1.finished()
 
182
        # the text ui factory never actually removes the stack once its setup.
 
183
        # we need to be able to nest again correctly from here.
 
184
        pb1 = stack.get_nested()
 
185
        pb2 = stack.get_nested()
 
186
        warnings, _ = self.callCatchWarnings(pb1.finished)
 
187
        self.assertEqual(len(warnings), 1)
 
188
        pb2.finished()
 
189
        pb1.finished()
 
190
 
 
191
    def assert_get_bool_acceptance_of_user_input(self, factory):
 
192
        factory.stdin = StringIO("y\nyes with garbage\n"
 
193
                                 "yes\nn\nnot an answer\n"
 
194
                                 "no\nfoo\n")
 
195
        factory.stdout = StringIO()
 
196
        # there is no output from the base factory
 
197
        self.assertEqual(True, factory.get_boolean(""))
 
198
        self.assertEqual(True, factory.get_boolean(""))
 
199
        self.assertEqual(False, factory.get_boolean(""))
 
200
        self.assertEqual(False, factory.get_boolean(""))
 
201
        self.assertEqual("foo\n", factory.stdin.read())
 
202
        # stdin should be empty
 
203
        self.assertEqual('', factory.stdin.readline())
 
204
 
 
205
    def test_silent_ui_getbool(self):
 
206
        factory = SilentUIFactory()
 
207
        self.assert_get_bool_acceptance_of_user_input(factory)
 
208
 
 
209
    def test_silent_factory_prompts_silently(self):
 
210
        factory = SilentUIFactory()
 
211
        stdout = StringIO()
 
212
        factory.stdin = StringIO("y\n")
 
213
        self.assertEqual(True,
 
214
                         self.apply_redirected(None, stdout, stdout,
 
215
                                               factory.get_boolean, "foo"))
 
216
        self.assertEqual("", stdout.getvalue())
 
217
        # stdin should be empty
 
218
        self.assertEqual('', factory.stdin.readline())
 
219
 
 
220
    def test_text_ui_getbool(self):
 
221
        factory = TextUIFactory(None, None, None)
 
222
        self.assert_get_bool_acceptance_of_user_input(factory)
 
223
 
 
224
    def test_text_factory_prompts_and_clears(self):
 
225
        # a get_boolean call should clear the pb before prompting
 
226
        out = _TTYStringIO()
 
227
        factory = TextUIFactory(stdin=StringIO("yada\ny\n"), stdout=out, stderr=out)
 
228
        pb = factory.nested_progress_bar()
 
229
        pb.show_bar = False
 
230
        pb.show_spinner = False
 
231
        pb.show_count = False
 
232
        pb.update("foo", 0, 1)
 
233
        self.assertEqual(True,
 
234
                         self.apply_redirected(None, factory.stdout,
 
235
                                               factory.stdout,
 
236
                                               factory.get_boolean,
 
237
                                               "what do you want"))
 
238
        output = out.getvalue()
 
239
        self.assertContainsRe(factory.stdout.getvalue(),
 
240
            "foo *\r\r  *\r*")
 
241
        self.assertContainsRe(factory.stdout.getvalue(),
 
242
            r"what do you want\? \[y/n\]: what do you want\? \[y/n\]: ")
 
243
        # stdin should have been totally consumed
 
244
        self.assertEqual('', factory.stdin.readline())
 
245
 
 
246
    def test_text_tick_after_update(self):
 
247
        ui_factory = TextUIFactory(stdout=StringIO(), stderr=StringIO())
 
248
        pb = ui_factory.nested_progress_bar()
 
249
        try:
 
250
            pb.update('task', 0, 3)
 
251
            # Reset the clock, so that it actually tries to repaint itself
 
252
            ui_factory._progress_view._last_repaint = time.time() - 1.0
 
253
            pb.tick()
 
254
        finally:
 
255
            pb.finished()
 
256
 
 
257
    def test_silent_ui_getusername(self):
 
258
        factory = SilentUIFactory()
 
259
        factory.stdin = StringIO("someuser\n\n")
 
260
        factory.stdout = StringIO()
 
261
        self.assertEquals(None, 
 
262
            factory.get_username(u'Hello\u1234 %(host)s', host=u'some\u1234'))
 
263
        self.assertEquals("", factory.stdout.getvalue())
 
264
        self.assertEquals("someuser\n\n", factory.stdin.getvalue())
 
265
 
 
266
    def test_text_ui_getusername(self):
 
267
        factory = TextUIFactory(None, None, None)
 
268
        factory.stdin = StringIO("someuser\n\n")
 
269
        factory.stdout = StringIO()
 
270
        factory.stdout.encoding = "utf8"
 
271
        # there is no output from the base factory
 
272
        self.assertEqual("someuser", 
 
273
            factory.get_username('Hello %(host)s', host='some'))
 
274
        self.assertEquals("Hello some: ", factory.stdout.getvalue())
 
275
        self.assertEqual("", factory.get_username("Gebruiker"))
 
276
        # stdin should be empty
 
277
        self.assertEqual('', factory.stdin.readline())
 
278
 
 
279
    def test_text_ui_getusername_utf8(self):
 
280
        ui = TestUIFactory(stdin=u'someuser\u1234'.encode('utf8'),
 
281
                           stdout=StringIOWrapper())
 
282
        ui.stdin.encoding = "utf8"
 
283
        ui.stdout.encoding = ui.stdin.encoding
 
284
        pb = ui.nested_progress_bar()
 
285
        try:
 
286
            # there is no output from the base factory
 
287
            username = self.apply_redirected(ui.stdin, ui.stdout, ui.stdout,
 
288
                ui.get_username, u'Hello\u1234 %(host)s', host=u'some\u1234')
 
289
            self.assertEquals(u"someuser\u1234", username.decode('utf8'))
 
290
            self.assertEquals(u"Hello\u1234 some\u1234: ", 
 
291
                ui.stdout.getvalue().decode("utf8"))
 
292
        finally:
 
293
            pb.finished()
 
294
 
 
295
 
 
296
class TestTextProgressView(TestCase):
 
297
    """Tests for text display of progress bars.
 
298
    """
 
299
    # XXX: These might be a bit easier to write if the rendering and
 
300
    # state-maintaining parts of TextProgressView were more separate, and if
 
301
    # the progress task called back directly to its own view not to the ui
 
302
    # factory. -- mbp 20090312
 
303
    
 
304
    def _make_factory(self):
 
305
        out = StringIO()
 
306
        uif = TextUIFactory(stderr=out)
 
307
        uif._progress_view._width = 80
 
308
        return out, uif
 
309
 
 
310
    def test_render_progress_easy(self):
 
311
        """Just one task and one quarter done"""
 
312
        out, uif = self._make_factory()
 
313
        task = uif.nested_progress_bar()
 
314
        task.update('reticulating splines', 5, 20)
 
315
        self.assertEqual(
 
316
'\r[####/               ] reticulating splines 5/20                               \r'
 
317
            , out.getvalue())
 
318
 
 
319
    def test_render_progress_nested(self):
 
320
        """Tasks proportionally contribute to overall progress"""
 
321
        out, uif = self._make_factory()
 
322
        task = uif.nested_progress_bar()
 
323
        task.update('reticulating splines', 0, 2)
 
324
        task2 = uif.nested_progress_bar()
 
325
        task2.update('stage2', 1, 2)
 
326
        # so we're in the first half of the main task, and half way through
 
327
        # that
 
328
        self.assertEqual(
 
329
r'[####\               ] reticulating splines:stage2 1/2'
 
330
            , uif._progress_view._render_line())
 
331
        # if the nested task is complete, then we're all the way through the
 
332
        # first half of the overall work
 
333
        task2.update('stage2', 2, 2)
 
334
        self.assertEqual(
 
335
r'[#########|          ] reticulating splines:stage2 2/2'
 
336
            , uif._progress_view._render_line())
 
337
 
 
338
    def test_render_progress_sub_nested(self):
 
339
        """Intermediate tasks don't mess up calculation."""
 
340
        out, uif = self._make_factory()
 
341
        task_a = uif.nested_progress_bar()
 
342
        task_a.update('a', 0, 2)
 
343
        task_b = uif.nested_progress_bar()
 
344
        task_b.update('b')
 
345
        task_c = uif.nested_progress_bar()
 
346
        task_c.update('c', 1, 2)
 
347
        # the top-level task is in its first half; the middle one has no
 
348
        # progress indication, just a label; and the bottom one is half done,
 
349
        # so the overall fraction is 1/4
 
350
        self.assertEqual(
 
351
            r'[####|               ] a:b:c 1/2'
 
352
            , uif._progress_view._render_line())
 
353