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  • Committer: Canonical.com Patch Queue Manager
  • Date: 2008-03-16 14:01:20 UTC
  • mfrom: (3280.2.5 integration)
  • Revision ID: pqm@pqm.ubuntu.com-20080316140120-i3yq8yr1l66m11h7
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bzrlib/tests/test_ui.py
1
 
# Copyright (C) 2005-2010 Canonical Ltd
 
1
# Copyright (C) 2005 Canonical Ltd
2
2
#
3
3
# This program is free software; you can redistribute it and/or modify
4
4
# it under the terms of the GNU General Public License as published by
12
12
#
13
13
# You should have received a copy of the GNU General Public License
14
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
 
15
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
16
16
 
17
17
"""Tests for the bzrlib ui
18
18
"""
19
19
 
20
20
import os
 
21
from StringIO import StringIO
21
22
import re
22
 
import time
23
 
 
24
 
from StringIO import StringIO
25
 
 
26
 
from bzrlib import (
27
 
    config,
28
 
    errors,
29
 
    remote,
30
 
    repository,
31
 
    tests,
32
 
    ui as _mod_ui,
33
 
    )
34
 
from bzrlib.symbol_versioning import (
35
 
    deprecated_in,
 
23
import sys
 
24
 
 
25
import bzrlib
 
26
import bzrlib.errors as errors
 
27
from bzrlib.progress import (
 
28
    DotsProgressBar,
 
29
    ProgressBarStack,
 
30
    TTYProgressBar,
36
31
    )
37
32
from bzrlib.tests import (
38
 
    fixtures,
39
 
    test_progress,
40
 
    )
41
 
from bzrlib.ui import text as _mod_ui_text
42
 
 
43
 
 
44
 
class TestUIConfiguration(tests.TestCaseWithTransport):
45
 
 
46
 
    def test_output_encoding_configuration(self):
47
 
        enc = fixtures.generate_unicode_encodings().next()
48
 
        config.GlobalConfig().set_user_option('output_encoding',
49
 
            enc)
50
 
        ui = tests.TestUIFactory(stdin=None,
51
 
            stdout=tests.StringIOWrapper(),
52
 
            stderr=tests.StringIOWrapper())
53
 
        os = ui.make_output_stream()
54
 
        self.assertEquals(os.encoding, enc)
55
 
 
56
 
 
57
 
class TestTextUIFactory(tests.TestCase):
 
33
    TestCase,
 
34
    TestUIFactory,
 
35
    StringIOWrapper,
 
36
    )
 
37
from bzrlib.tests.test_progress import _TTYStringIO
 
38
from bzrlib.ui import (
 
39
    CLIUIFactory,
 
40
    SilentUIFactory,
 
41
    )
 
42
from bzrlib.ui.text import TextUIFactory
 
43
 
 
44
 
 
45
class UITests(TestCase):
 
46
 
 
47
    def test_silent_factory(self):
 
48
        ui = SilentUIFactory()
 
49
        stdout = StringIO()
 
50
        self.assertEqual(None,
 
51
                         self.apply_redirected(None, stdout, stdout,
 
52
                                               ui.get_password))
 
53
        self.assertEqual('', stdout.getvalue())
 
54
        self.assertEqual(None,
 
55
                         self.apply_redirected(None, stdout, stdout,
 
56
                                               ui.get_password,
 
57
                                               u'Hello\u1234 %(user)s',
 
58
                                               user=u'some\u1234'))
 
59
        self.assertEqual('', stdout.getvalue())
58
60
 
59
61
    def test_text_factory_ascii_password(self):
60
 
        ui = tests.TestUIFactory(stdin='secret\n',
61
 
                                 stdout=tests.StringIOWrapper(),
62
 
                                 stderr=tests.StringIOWrapper())
 
62
        ui = TestUIFactory(stdin='secret\n', stdout=StringIOWrapper())
63
63
        pb = ui.nested_progress_bar()
64
64
        try:
65
65
            self.assertEqual('secret',
66
66
                             self.apply_redirected(ui.stdin, ui.stdout,
67
 
                                                   ui.stderr,
 
67
                                                   ui.stdout,
68
68
                                                   ui.get_password))
69
69
            # ': ' is appended to prompt
70
 
            self.assertEqual(': ', ui.stderr.getvalue())
71
 
            self.assertEqual('', ui.stdout.readline())
 
70
            self.assertEqual(': ', ui.stdout.getvalue())
72
71
            # stdin should be empty
73
72
            self.assertEqual('', ui.stdin.readline())
74
73
        finally:
80
79
        We can't predict what encoding users will have for stdin, so we force
81
80
        it to utf8 to test that we transport the password correctly.
82
81
        """
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'
 
82
        ui = TestUIFactory(stdin=u'baz\u1234'.encode('utf8'),
 
83
                           stdout=StringIOWrapper())
 
84
        ui.stdin.encoding = 'utf8'
 
85
        ui.stdout.encoding = ui.stdin.encoding
87
86
        pb = ui.nested_progress_bar()
88
87
        try:
89
 
            password = self.apply_redirected(ui.stdin, ui.stdout, ui.stderr,
 
88
            password = self.apply_redirected(ui.stdin, ui.stdout, ui.stdout,
90
89
                                             ui.get_password,
91
90
                                             u'Hello \u1234 %(user)s',
92
91
                                             user=u'some\u1234')
93
92
            # We use StringIO objects, we need to decode them
94
93
            self.assertEqual(u'baz\u1234', password.decode('utf8'))
95
94
            self.assertEqual(u'Hello \u1234 some\u1234: ',
96
 
                             ui.stderr.getvalue().decode('utf8'))
97
 
            # stdin and stdout should be empty
 
95
                             ui.stdout.getvalue().decode('utf8'))
 
96
            # stdin should be empty
98
97
            self.assertEqual('', ui.stdin.readline())
99
 
            self.assertEqual('', ui.stdout.readline())
100
 
        finally:
101
 
            pb.finished()
102
 
 
103
 
    def test_text_ui_get_boolean(self):
104
 
        stdin = tests.StringIOWrapper("y\n" # True
105
 
                                      "n\n" # False
106
 
                                      "yes with garbage\nY\n" # True
107
 
                                      "not an answer\nno\n" # False
108
 
                                      "I'm sure!\nyes\n" # True
109
 
                                      "NO\n" # False
110
 
                                      "foo\n")
111
 
        stdout = tests.StringIOWrapper()
112
 
        stderr = tests.StringIOWrapper()
113
 
        factory = _mod_ui_text.TextUIFactory(stdin, stdout, stderr)
114
 
        self.assertEqual(True, factory.get_boolean(""))
115
 
        self.assertEqual(False, factory.get_boolean(""))
116
 
        self.assertEqual(True, factory.get_boolean(""))
117
 
        self.assertEqual(False, factory.get_boolean(""))
118
 
        self.assertEqual(True, factory.get_boolean(""))
 
98
        finally:
 
99
            pb.finished()
 
100
 
 
101
    def test_progress_note(self):
 
102
        stderr = StringIO()
 
103
        stdout = StringIO()
 
104
        ui_factory = TextUIFactory(bar_type=TTYProgressBar)
 
105
        pb = ui_factory.nested_progress_bar()
 
106
        try:
 
107
            pb.to_messages_file = stdout
 
108
            ui_factory._progress_bar_stack.bottom().to_file = stderr
 
109
            result = pb.note('t')
 
110
            self.assertEqual(None, result)
 
111
            self.assertEqual("t\n", stdout.getvalue())
 
112
            # Since there was no update() call, there should be no clear() call
 
113
            self.failIf(re.search(r'^\r {10,}\r$',
 
114
                                  stderr.getvalue()) is not None,
 
115
                        'We cleared the stderr without anything to put there')
 
116
        finally:
 
117
            pb.finished()
 
118
 
 
119
    def test_progress_note_clears(self):
 
120
        stderr = StringIO()
 
121
        stdout = StringIO()
 
122
        # The PQM redirects the output to a file, so it
 
123
        # defaults to creating a Dots progress bar. we
 
124
        # need to force it to believe we are a TTY
 
125
        ui_factory = TextUIFactory(bar_type=TTYProgressBar)
 
126
        pb = ui_factory.nested_progress_bar()
 
127
        try:
 
128
            pb.to_messages_file = stdout
 
129
            ui_factory._progress_bar_stack.bottom().to_file = stderr
 
130
            # Create a progress update that isn't throttled
 
131
            pb.start_time -= 10
 
132
            pb.update('x', 1, 1)
 
133
            result = pb.note('t')
 
134
            self.assertEqual(None, result)
 
135
            self.assertEqual("t\n", stdout.getvalue())
 
136
            # the exact contents will depend on the terminal width and we don't
 
137
            # care about that right now - but you're probably running it on at
 
138
            # least a 10-character wide terminal :)
 
139
            self.assertContainsRe(stderr.getvalue(), r'\r {10,}\r$')
 
140
        finally:
 
141
            pb.finished()
 
142
 
 
143
    def test_progress_nested(self):
 
144
        # test factory based nested and popping.
 
145
        ui = TextUIFactory()
 
146
        pb1 = ui.nested_progress_bar()
 
147
        pb2 = ui.nested_progress_bar()
 
148
        self.assertRaises(errors.MissingProgressBarFinish, pb1.finished)
 
149
        pb2.finished()
 
150
        pb1.finished()
 
151
 
 
152
    def test_progress_stack(self):
 
153
        # test the progress bar stack which the default text factory 
 
154
        # uses.
 
155
        stderr = StringIO()
 
156
        stdout = StringIO()
 
157
        # make a stack, which accepts parameters like a pb.
 
158
        stack = ProgressBarStack(to_file=stderr, to_messages_file=stdout)
 
159
        # but is not one
 
160
        self.assertFalse(getattr(stack, 'note', False))
 
161
        pb1 = stack.get_nested()
 
162
        pb2 = stack.get_nested()
 
163
        self.assertRaises(errors.MissingProgressBarFinish, pb1.finished)
 
164
        pb2.finished()
 
165
        pb1.finished()
 
166
        # the text ui factory never actually removes the stack once its setup.
 
167
        # we need to be able to nest again correctly from here.
 
168
        pb1 = stack.get_nested()
 
169
        pb2 = stack.get_nested()
 
170
        self.assertRaises(errors.MissingProgressBarFinish, pb1.finished)
 
171
        pb2.finished()
 
172
        pb1.finished()
 
173
 
 
174
    def test_text_factory_setting_progress_bar(self):
 
175
        # we should be able to choose the progress bar type used.
 
176
        factory = TextUIFactory(bar_type=DotsProgressBar)
 
177
        bar = factory.nested_progress_bar()
 
178
        bar.finished()
 
179
        self.assertIsInstance(bar, DotsProgressBar)
 
180
 
 
181
    def test_cli_stdin_is_default_stdin(self):
 
182
        factory = CLIUIFactory()
 
183
        self.assertEqual(sys.stdin, factory.stdin)
 
184
 
 
185
    def assert_get_bool_acceptance_of_user_input(self, factory):
 
186
        factory.stdin = StringIO("y\nyes with garbage\n"
 
187
                                 "yes\nn\nnot an answer\n"
 
188
                                 "no\nfoo\n")
 
189
        factory.stdout = StringIO()
 
190
        # there is no output from the base factory
 
191
        self.assertEqual(True, factory.get_boolean(""))
 
192
        self.assertEqual(True, factory.get_boolean(""))
 
193
        self.assertEqual(False, factory.get_boolean(""))
119
194
        self.assertEqual(False, factory.get_boolean(""))
120
195
        self.assertEqual("foo\n", factory.stdin.read())
121
196
        # stdin should be empty
122
197
        self.assertEqual('', factory.stdin.readline())
123
198
 
124
 
    def test_text_ui_get_integer(self):
125
 
        stdin = tests.StringIOWrapper(
126
 
            "1\n"
127
 
            "  -2  \n"
128
 
            "hmmm\nwhat else ?\nCome on\nok 42\n4.24\n42\n")
129
 
        stdout = tests.StringIOWrapper()
130
 
        stderr = tests.StringIOWrapper()
131
 
        factory = _mod_ui_text.TextUIFactory(stdin, stdout, stderr)
132
 
        self.assertEqual(1, factory.get_integer(""))
133
 
        self.assertEqual(-2, factory.get_integer(""))
134
 
        self.assertEqual(42, factory.get_integer(""))
135
 
 
136
 
    def test_text_factory_prompt(self):
137
 
        # see <https://launchpad.net/bugs/365891>
138
 
        StringIO = tests.StringIOWrapper
139
 
        factory = _mod_ui_text.TextUIFactory(StringIO(), StringIO(), StringIO())
140
 
        factory.prompt('foo %2e')
141
 
        self.assertEqual('', factory.stdout.getvalue())
142
 
        self.assertEqual('foo %2e', factory.stderr.getvalue())
 
199
    def test_silent_ui_getbool(self):
 
200
        factory = SilentUIFactory()
 
201
        self.assert_get_bool_acceptance_of_user_input(factory)
 
202
 
 
203
    def test_silent_factory_prompts_silently(self):
 
204
        factory = SilentUIFactory()
 
205
        stdout = StringIO()
 
206
        factory.stdin = StringIO("y\n")
 
207
        self.assertEqual(True,
 
208
                         self.apply_redirected(None, stdout, stdout,
 
209
                                               factory.get_boolean, "foo"))
 
210
        self.assertEqual("", stdout.getvalue())
 
211
        # stdin should be empty
 
212
        self.assertEqual('', factory.stdin.readline())
 
213
 
 
214
    def test_text_ui_getbool(self):
 
215
        factory = TextUIFactory()
 
216
        self.assert_get_bool_acceptance_of_user_input(factory)
143
217
 
144
218
    def test_text_factory_prompts_and_clears(self):
145
219
        # a get_boolean call should clear the pb before prompting
146
 
        out = test_progress._TTYStringIO()
147
 
        os.environ['TERM'] = 'xterm'
148
 
        factory = _mod_ui_text.TextUIFactory(
149
 
            stdin=tests.StringIOWrapper("yada\ny\n"),
150
 
            stdout=out, stderr=out)
151
 
        factory._avail_width = lambda: 79
152
 
        pb = factory.nested_progress_bar()
153
 
        pb.show_bar = False
154
 
        pb.show_spinner = False
155
 
        pb.show_count = False
156
 
        pb.update("foo", 0, 1)
 
220
        factory = TextUIFactory(bar_type=DotsProgressBar)
 
221
        factory.stdout = _TTYStringIO()
 
222
        factory.stdin = StringIO("yada\ny\n")
 
223
        pb = self.apply_redirected(factory.stdin, factory.stdout,
 
224
                                   factory.stdout, factory.nested_progress_bar)
 
225
        pb.start_time = None
 
226
        self.apply_redirected(factory.stdin, factory.stdout,
 
227
                              factory.stdout, pb.update, "foo", 0, 1)
157
228
        self.assertEqual(True,
158
229
                         self.apply_redirected(None, factory.stdout,
159
230
                                               factory.stdout,
160
231
                                               factory.get_boolean,
161
232
                                               "what do you want"))
162
 
        output = out.getvalue()
163
 
        self.assertContainsRe(output,
164
 
            "| foo *\r\r  *\r*")
165
 
        self.assertContainsRe(output,
166
 
            r"what do you want\? \[y/n\]: what do you want\? \[y/n\]: ")
167
 
        # stdin should have been totally consumed
168
 
        self.assertEqual('', factory.stdin.readline())
169
 
 
170
 
    def test_text_tick_after_update(self):
171
 
        ui_factory = _mod_ui_text.TextUIFactory(stdout=tests.StringIOWrapper(),
172
 
                                                stderr=tests.StringIOWrapper())
173
 
        pb = ui_factory.nested_progress_bar()
174
 
        try:
175
 
            pb.update('task', 0, 3)
176
 
            # Reset the clock, so that it actually tries to repaint itself
177
 
            ui_factory._progress_view._last_repaint = time.time() - 1.0
178
 
            pb.tick()
179
 
        finally:
180
 
            pb.finished()
181
 
 
182
 
    def test_text_ui_getusername(self):
183
 
        factory = _mod_ui_text.TextUIFactory(None, None, None)
184
 
        factory.stdin = tests.StringIOWrapper("someuser\n\n")
185
 
        factory.stdout = tests.StringIOWrapper()
186
 
        factory.stderr = tests.StringIOWrapper()
187
 
        factory.stdout.encoding = "utf8"
188
 
        # there is no output from the base factory
189
 
        self.assertEqual("someuser",
190
 
                         factory.get_username('Hello %(host)s', host='some'))
191
 
        self.assertEquals("Hello some: ", factory.stderr.getvalue())
192
 
        self.assertEquals('', factory.stdout.getvalue())
193
 
        self.assertEqual("", factory.get_username("Gebruiker"))
 
233
        output = factory.stdout.getvalue()
 
234
        self.assertEqual("foo: .\n"
 
235
                         "what do you want? [y/n]: what do you want? [y/n]: ",
 
236
                         factory.stdout.getvalue())
194
237
        # stdin should be empty
195
238
        self.assertEqual('', factory.stdin.readline())
196
239
 
197
 
    def test_text_ui_getusername_utf8(self):
198
 
        ui = tests.TestUIFactory(stdin=u'someuser\u1234'.encode('utf8'),
199
 
                                 stdout=tests.StringIOWrapper(),
200
 
                                 stderr=tests.StringIOWrapper())
201
 
        ui.stderr.encoding = ui.stdout.encoding = ui.stdin.encoding = "utf8"
202
 
        pb = ui.nested_progress_bar()
203
 
        try:
204
 
            # there is no output from the base factory
205
 
            username = self.apply_redirected(ui.stdin, ui.stdout, ui.stderr,
206
 
                ui.get_username, u'Hello\u1234 %(host)s', host=u'some\u1234')
207
 
            self.assertEquals(u"someuser\u1234", username.decode('utf8'))
208
 
            self.assertEquals(u"Hello\u1234 some\u1234: ",
209
 
                              ui.stderr.getvalue().decode("utf8"))
210
 
            self.assertEquals('', ui.stdout.getvalue())
211
 
        finally:
212
 
            pb.finished()
213
 
 
214
 
    def test_quietness(self):
215
 
        os.environ['BZR_PROGRESS_BAR'] = 'text'
216
 
        ui_factory = _mod_ui_text.TextUIFactory(None,
217
 
            test_progress._TTYStringIO(),
218
 
            test_progress._TTYStringIO())
219
 
        self.assertIsInstance(ui_factory._progress_view,
220
 
            _mod_ui_text.TextProgressView)
221
 
        ui_factory.be_quiet(True)
222
 
        self.assertIsInstance(ui_factory._progress_view,
223
 
            _mod_ui_text.NullProgressView)
224
 
 
225
 
    def test_text_ui_show_user_warning(self):
226
 
        from bzrlib.repofmt.groupcompress_repo import RepositoryFormat2a
227
 
        from bzrlib.repofmt.pack_repo import RepositoryFormatKnitPack5
228
 
        err = StringIO()
229
 
        out = StringIO()
230
 
        ui = tests.TextUIFactory(stdin=None, stdout=out, stderr=err)
231
 
        remote_fmt = remote.RemoteRepositoryFormat()
232
 
        remote_fmt._network_name = RepositoryFormatKnitPack5().network_name()
233
 
        ui.show_user_warning('cross_format_fetch', from_format=RepositoryFormat2a(),
234
 
            to_format=remote_fmt)
235
 
        self.assertEquals('', out.getvalue())
236
 
        self.assertEquals("Doing on-the-fly conversion from RepositoryFormat2a() to "
237
 
            "RemoteRepositoryFormat(_network_name='Bazaar RepositoryFormatKnitPack5 "
238
 
            "(bzr 1.6)\\n').\nThis may take some time. Upgrade the repositories to "
239
 
            "the same format for better performance.\n",
240
 
            err.getvalue())
241
 
        # and now with it suppressed please
242
 
        err = StringIO()
243
 
        out = StringIO()
244
 
        ui = tests.TextUIFactory(stdin=None, stdout=out, stderr=err)
245
 
        ui.suppressed_warnings.add('cross_format_fetch')
246
 
        ui.show_user_warning('cross_format_fetch', from_format=RepositoryFormat2a(),
247
 
            to_format=remote_fmt)
248
 
        self.assertEquals('', out.getvalue())
249
 
        self.assertEquals('', err.getvalue())
250
 
 
251
 
 
252
 
class TestTextUIOutputStream(tests.TestCase):
253
 
    """Tests for output stream that synchronizes with progress bar."""
254
 
 
255
 
    def test_output_clears_terminal(self):
256
 
        stdout = tests.StringIOWrapper()
257
 
        stderr = tests.StringIOWrapper()
258
 
        clear_calls = []
259
 
 
260
 
        uif =  _mod_ui_text.TextUIFactory(None, stdout, stderr)
261
 
        uif.clear_term = lambda: clear_calls.append('clear')
262
 
 
263
 
        stream = _mod_ui_text.TextUIOutputStream(uif, uif.stdout)
264
 
        stream.write("Hello world!\n")
265
 
        stream.write("there's more...\n")
266
 
        stream.writelines(["1\n", "2\n", "3\n"])
267
 
 
268
 
        self.assertEqual(stdout.getvalue(),
269
 
            "Hello world!\n"
270
 
            "there's more...\n"
271
 
            "1\n2\n3\n")
272
 
        self.assertEqual(['clear', 'clear', 'clear'],
273
 
            clear_calls)
274
 
 
275
 
        stream.flush()
276
 
 
277
 
 
278
 
class UITests(tests.TestCase):
279
 
 
280
 
    def test_progress_construction(self):
281
 
        """TextUIFactory constructs the right progress view.
282
 
        """
283
 
        TTYStringIO = test_progress._TTYStringIO
284
 
        FileStringIO = tests.StringIOWrapper
285
 
        for (file_class, term, pb, expected_pb_class) in (
286
 
            # on an xterm, either use them or not as the user requests,
287
 
            # otherwise default on
288
 
            (TTYStringIO, 'xterm', 'none', _mod_ui_text.NullProgressView),
289
 
            (TTYStringIO, 'xterm', 'text', _mod_ui_text.TextProgressView),
290
 
            (TTYStringIO, 'xterm', None, _mod_ui_text.TextProgressView),
291
 
            # on a dumb terminal, again if there's explicit configuration do
292
 
            # it, otherwise default off
293
 
            (TTYStringIO, 'dumb', 'none', _mod_ui_text.NullProgressView),
294
 
            (TTYStringIO, 'dumb', 'text', _mod_ui_text.TextProgressView),
295
 
            (TTYStringIO, 'dumb', None, _mod_ui_text.NullProgressView),
296
 
            # on a non-tty terminal, it's null regardless of $TERM
297
 
            (FileStringIO, 'xterm', None, _mod_ui_text.NullProgressView),
298
 
            (FileStringIO, 'dumb', None, _mod_ui_text.NullProgressView),
299
 
            # however, it can still be forced on
300
 
            (FileStringIO, 'dumb', 'text', _mod_ui_text.TextProgressView),
301
 
            ):
302
 
            os.environ['TERM'] = term
303
 
            if pb is None:
304
 
                if 'BZR_PROGRESS_BAR' in os.environ:
305
 
                    del os.environ['BZR_PROGRESS_BAR']
306
 
            else:
307
 
                os.environ['BZR_PROGRESS_BAR'] = pb
308
 
            stdin = file_class('')
309
 
            stderr = file_class()
310
 
            stdout = file_class()
311
 
            uif = _mod_ui.make_ui_for_terminal(stdin, stdout, stderr)
312
 
            self.assertIsInstance(uif, _mod_ui_text.TextUIFactory,
313
 
                "TERM=%s BZR_PROGRESS_BAR=%s uif=%r" % (term, pb, uif,))
314
 
            self.assertIsInstance(uif.make_progress_view(),
315
 
                expected_pb_class,
316
 
                "TERM=%s BZR_PROGRESS_BAR=%s uif=%r" % (term, pb, uif,))
317
 
 
318
 
    def test_text_ui_non_terminal(self):
319
 
        """Even on non-ttys, make_ui_for_terminal gives a text ui."""
320
 
        stdin = test_progress._NonTTYStringIO('')
321
 
        stderr = test_progress._NonTTYStringIO()
322
 
        stdout = test_progress._NonTTYStringIO()
323
 
        for term_type in ['dumb', None, 'xterm']:
324
 
            if term_type is None:
325
 
                del os.environ['TERM']
326
 
            else:
327
 
                os.environ['TERM'] = term_type
328
 
            uif = _mod_ui.make_ui_for_terminal(stdin, stdout, stderr)
329
 
            self.assertIsInstance(uif, _mod_ui_text.TextUIFactory,
330
 
                'TERM=%r' % (term_type,))
331
 
 
332
 
 
333
 
class SilentUITests(tests.TestCase):
334
 
 
335
 
    def test_silent_factory_get_password(self):
336
 
        # A silent factory that can't do user interaction can't get a
337
 
        # password.  Possibly it should raise a more specific error but it
338
 
        # can't succeed.
339
 
        ui = _mod_ui.SilentUIFactory()
340
 
        stdout = tests.StringIOWrapper()
341
 
        self.assertRaises(
342
 
            NotImplementedError,
343
 
            self.apply_redirected,
344
 
            None, stdout, stdout, ui.get_password)
345
 
        # and it didn't write anything out either
346
 
        self.assertEqual('', stdout.getvalue())
347
 
 
348
 
    def test_silent_ui_getbool(self):
349
 
        factory = _mod_ui.SilentUIFactory()
350
 
        stdout = tests.StringIOWrapper()
351
 
        self.assertRaises(
352
 
            NotImplementedError,
353
 
            self.apply_redirected,
354
 
            None, stdout, stdout, factory.get_boolean, "foo")
355
 
 
356
 
 
357
 
class TestUIFactoryTests(tests.TestCase):
358
 
 
359
 
    def test_test_ui_factory_progress(self):
360
 
        # there's no output; we just want to make sure this doesn't crash -
361
 
        # see https://bugs.launchpad.net/bzr/+bug/408201
362
 
        ui = tests.TestUIFactory()
363
 
        pb = ui.nested_progress_bar()
364
 
        pb.update('hello')
365
 
        pb.tick()
366
 
        pb.finished()
367
 
 
368
 
 
369
 
class CannedInputUIFactoryTests(tests.TestCase):
370
 
 
371
 
    def test_canned_input_get_input(self):
372
 
        uif = _mod_ui.CannedInputUIFactory([True, 'mbp', 'password', 42])
373
 
        self.assertEqual(True, uif.get_boolean('Extra cheese?'))
374
 
        self.assertEqual('mbp', uif.get_username('Enter your user name'))
375
 
        self.assertEqual('password',
376
 
                         uif.get_password('Password for %(host)s',
377
 
                                          host='example.com'))
378
 
        self.assertEqual(42, uif.get_integer('And all that jazz ?'))
379
 
 
380
 
 
381
 
class TestBoolFromString(tests.TestCase):
382
 
 
383
 
    def assertIsTrue(self, s, accepted_values=None):
384
 
        res = _mod_ui.bool_from_string(s, accepted_values=accepted_values)
385
 
        self.assertEquals(True, res)
386
 
 
387
 
    def assertIsFalse(self, s, accepted_values=None):
388
 
        res = _mod_ui.bool_from_string(s, accepted_values=accepted_values)
389
 
        self.assertEquals(False, res)
390
 
 
391
 
    def assertIsNone(self, s, accepted_values=None):
392
 
        res = _mod_ui.bool_from_string(s, accepted_values=accepted_values)
393
 
        self.assertIs(None, res)
394
 
 
395
 
    def test_know_valid_values(self):
396
 
        self.assertIsTrue('true')
397
 
        self.assertIsFalse('false')
398
 
        self.assertIsTrue('1')
399
 
        self.assertIsFalse('0')
400
 
        self.assertIsTrue('on')
401
 
        self.assertIsFalse('off')
402
 
        self.assertIsTrue('yes')
403
 
        self.assertIsFalse('no')
404
 
        self.assertIsTrue('y')
405
 
        self.assertIsFalse('n')
406
 
        # Also try some case variations
407
 
        self.assertIsTrue('True')
408
 
        self.assertIsFalse('False')
409
 
        self.assertIsTrue('On')
410
 
        self.assertIsFalse('Off')
411
 
        self.assertIsTrue('ON')
412
 
        self.assertIsFalse('OFF')
413
 
        self.assertIsTrue('oN')
414
 
        self.assertIsFalse('oFf')
415
 
 
416
 
    def test_invalid_values(self):
417
 
        self.assertIsNone(None)
418
 
        self.assertIsNone('doubt')
419
 
        self.assertIsNone('frue')
420
 
        self.assertIsNone('talse')
421
 
        self.assertIsNone('42')
422
 
 
423
 
    def test_provided_values(self):
424
 
        av = dict(y=True, n=False, yes=True, no=False)
425
 
        self.assertIsTrue('y', av)
426
 
        self.assertIsTrue('Y', av)
427
 
        self.assertIsTrue('Yes', av)
428
 
        self.assertIsFalse('n', av)
429
 
        self.assertIsFalse('N', av)
430
 
        self.assertIsFalse('No', av)
431
 
        self.assertIsNone('1', av)
432
 
        self.assertIsNone('0', av)
433
 
        self.assertIsNone('on', av)
434
 
        self.assertIsNone('off', av)