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Viewing changes to bzrlib/tests/test_ui.py

  • Committer: Martin Pool
  • Date: 2007-03-24 00:06:57 UTC
  • mto: (2323.5.3 0.15)
  • mto: This revision was merged to the branch mainline in revision 2390.
  • Revision ID: mbp@sourcefrog.net-20070324000657-fkotsej7quseardh
prepare rc3

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# Copyright (C) 2005 Canonical Ltd
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
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"""Tests for the bzrlib ui
 
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"""
 
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import os
 
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from StringIO import StringIO
 
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import re
 
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import sys
 
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import bzrlib
 
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import bzrlib.errors as errors
 
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from bzrlib.progress import DotsProgressBar, TTYProgressBar, ProgressBarStack
 
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from bzrlib.tests import (
 
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    TestUIFactory,
 
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    StringIOWrapper,
 
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    TestCase,
 
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    )
 
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from bzrlib.tests.test_progress import _TTYStringIO
 
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from bzrlib.ui import SilentUIFactory
 
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from bzrlib.ui.text import TextUIFactory
 
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class UITests(TestCase):
 
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    def test_silent_factory(self):
 
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        ui = SilentUIFactory()
 
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        stdout = StringIO()
 
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        self.assertEqual(None,
 
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                         self.apply_redirected(None, stdout, stdout,
 
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                                               ui.get_password))
 
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        self.assertEqual('', stdout.getvalue())
 
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        self.assertEqual(None,
 
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                         self.apply_redirected(None, stdout, stdout,
 
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                                               ui.get_password,
 
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                                               u'Hello\u1234 %(user)s',
 
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                                               user=u'some\u1234'))
 
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        self.assertEqual('', stdout.getvalue())
 
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    def test_text_factory_ascii_password(self):
 
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        ui = TestUIFactory(stdin='secret\n', stdout=StringIOWrapper())
 
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        pb = ui.nested_progress_bar()
 
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        try:
 
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            self.assertEqual('secret',
 
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                             self.apply_redirected(ui.stdin, ui.stdout,
 
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                                                   ui.stdout,
 
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                                                   ui.get_password))
 
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            # ': ' is appended to prompt
 
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            self.assertEqual(': ', ui.stdout.getvalue())
 
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        finally:
 
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            pb.finished()
 
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    def test_text_factory_utf8_password(self):
 
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        """Test an utf8 password.
 
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        We can't predict what encoding users will have for stdin, so we force
 
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        it to utf8 to test that we transport the password correctly.
 
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        """
 
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        ui = TestUIFactory(stdin=u'baz\u1234'.encode('utf8'),
 
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                           stdout=StringIOWrapper())
 
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        ui.stdin.encoding = 'utf8'
 
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        ui.stdout.encoding = ui.stdin.encoding
 
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        pb = ui.nested_progress_bar()
 
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        try:
 
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            password = self.apply_redirected(ui.stdin, ui.stdout, ui.stdout,
 
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                                             ui.get_password,
 
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                                             u'Hello \u1234 %(user)s',
 
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                                             user=u'some\u1234')
 
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            # We use StringIO objects, we need to decode them
 
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            self.assertEqual(u'baz\u1234', password.decode('utf8'))
 
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            self.assertEqual(u'Hello \u1234 some\u1234: ',
 
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                             ui.stdout.getvalue().decode('utf8'))
 
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        finally:
 
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            pb.finished()
 
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    def test_progress_note(self):
 
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        stderr = StringIO()
 
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        stdout = StringIO()
 
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        ui_factory = TextUIFactory(bar_type=TTYProgressBar)
 
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        pb = ui_factory.nested_progress_bar()
 
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        try:
 
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            pb.to_messages_file = stdout
 
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            ui_factory._progress_bar_stack.bottom().to_file = stderr
 
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            result = pb.note('t')
 
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            self.assertEqual(None, result)
 
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            self.assertEqual("t\n", stdout.getvalue())
 
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            # Since there was no update() call, there should be no clear() call
 
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            self.failIf(re.search(r'^\r {10,}\r$', stderr.getvalue()) is not None,
 
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                        'We cleared the stderr without anything to put there')
 
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        finally:
 
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            pb.finished()
 
106
 
 
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    def test_progress_note_clears(self):
 
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        stderr = StringIO()
 
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        stdout = StringIO()
 
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        # The PQM redirects the output to a file, so it
 
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        # defaults to creating a Dots progress bar. we
 
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        # need to force it to believe we are a TTY
 
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        ui_factory = TextUIFactory(bar_type=TTYProgressBar)
 
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        pb = ui_factory.nested_progress_bar()
 
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        try:
 
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            pb.to_messages_file = stdout
 
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            ui_factory._progress_bar_stack.bottom().to_file = stderr
 
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            # Create a progress update that isn't throttled
 
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            pb.start_time -= 10
 
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            pb.update('x', 1, 1)
 
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            result = pb.note('t')
 
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            self.assertEqual(None, result)
 
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            self.assertEqual("t\n", stdout.getvalue())
 
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            # the exact contents will depend on the terminal width and we don't
 
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            # care about that right now - but you're probably running it on at
 
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            # least a 10-character wide terminal :)
 
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            self.assertContainsRe(stderr.getvalue(), r'\r {10,}\r$')
 
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        finally:
 
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            pb.finished()
 
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    def test_progress_nested(self):
 
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        # test factory based nested and popping.
 
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        ui = TextUIFactory()
 
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        pb1 = ui.nested_progress_bar()
 
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        pb2 = ui.nested_progress_bar()
 
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        self.assertRaises(errors.MissingProgressBarFinish, pb1.finished)
 
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        pb2.finished()
 
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        pb1.finished()
 
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    def test_progress_stack(self):
 
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        # test the progress bar stack which the default text factory 
 
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        # uses.
 
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        stderr = StringIO()
 
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        stdout = StringIO()
 
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        # make a stack, which accepts parameters like a pb.
 
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        stack = ProgressBarStack(to_file=stderr, to_messages_file=stdout)
 
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        # but is not one
 
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        self.assertFalse(getattr(stack, 'note', False))
 
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        pb1 = stack.get_nested()
 
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        pb2 = stack.get_nested()
 
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        self.assertRaises(errors.MissingProgressBarFinish, pb1.finished)
 
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        pb2.finished()
 
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        pb1.finished()
 
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        # the text ui factory never actually removes the stack once its setup.
 
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        # we need to be able to nest again correctly from here.
 
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        pb1 = stack.get_nested()
 
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        pb2 = stack.get_nested()
 
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        self.assertRaises(errors.MissingProgressBarFinish, pb1.finished)
 
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        pb2.finished()
 
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        pb1.finished()
 
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162
    def test_text_factory_setting_progress_bar(self):
 
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        # we should be able to choose the progress bar type used.
 
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        factory = bzrlib.ui.text.TextUIFactory(
 
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            bar_type=DotsProgressBar)
 
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        bar = factory.nested_progress_bar()
 
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        bar.finished()
 
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        self.assertIsInstance(bar, DotsProgressBar)
 
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170
    def test_cli_stdin_is_default_stdin(self):
 
171
        factory = bzrlib.ui.CLIUIFactory()
 
172
        self.assertEqual(sys.stdin, factory.stdin)
 
173
 
 
174
    def assert_get_bool_acceptance_of_user_input(self, factory):
 
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        factory.stdin = StringIO("y\nyes with garbage\nyes\nn\nnot an answer\nno\nfoo\n")
 
176
        factory.stdout = StringIO()
 
177
        # there is no output from the base factory
 
178
        self.assertEqual(True, factory.get_boolean(""))
 
179
        self.assertEqual(True, factory.get_boolean(""))
 
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        self.assertEqual(False, factory.get_boolean(""))
 
181
        self.assertEqual(False, factory.get_boolean(""))
 
182
        self.assertEqual("foo\n", factory.stdin.read())
 
183
 
 
184
    def test_silent_ui_getbool(self):
 
185
        factory = bzrlib.ui.SilentUIFactory()
 
186
        self.assert_get_bool_acceptance_of_user_input(factory)
 
187
 
 
188
    def test_silent_factory_prompts_silently(self):
 
189
        factory = bzrlib.ui.SilentUIFactory()
 
190
        stdout = StringIO()
 
191
        factory.stdin = StringIO("y\n")
 
192
        self.assertEqual(
 
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            True,
 
194
            self.apply_redirected(
 
195
                None, stdout, stdout, factory.get_boolean, "foo")
 
196
            )
 
197
        self.assertEqual("", stdout.getvalue())
 
198
        
 
199
    def test_text_ui_getbool(self):
 
200
        factory = bzrlib.ui.text.TextUIFactory()
 
201
        self.assert_get_bool_acceptance_of_user_input(factory)
 
202
 
 
203
    def test_text_factory_prompts_and_clears(self):
 
204
        # a get_boolean call should clear the pb before prompting
 
205
        factory = bzrlib.ui.text.TextUIFactory(bar_type=DotsProgressBar)
 
206
        factory.stdout = _TTYStringIO()
 
207
        factory.stdin = StringIO("yada\ny\n")
 
208
        pb = self.apply_redirected(
 
209
            factory.stdin, factory.stdout, factory.stdout, factory.nested_progress_bar)
 
210
        pb.start_time = None
 
211
        self.apply_redirected(
 
212
            factory.stdin, factory.stdout, factory.stdout, pb.update, "foo", 0, 1)
 
213
        self.assertEqual(
 
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            True,
 
215
            self.apply_redirected(
 
216
                None, factory.stdout, factory.stdout, factory.get_boolean, "what do you want")
 
217
            )
 
218
        output = factory.stdout.getvalue()
 
219
        self.assertEqual("foo: .\n"
 
220
                         "what do you want? [y/n]: what do you want? [y/n]: ",
 
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                         factory.stdout.getvalue())