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Viewing changes to bzrlib/tests/test_ui.py

  • Committer: Martin Pool
  • Date: 2005-06-27 01:26:11 UTC
  • Revision ID: mbp@sourcefrog.net-20050627012611-4effb7007553fde1
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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