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Viewing changes to bzrlib/tests/test_commands.py

  • Committer: John Arbash Meinel
  • Date: 2009-03-06 20:42:40 UTC
  • mto: This revision was merged to the branch mainline in revision 4088.
  • Revision ID: john@arbash-meinel.com-20090306204240-mzjavv31z3gu1x7i
Fix a small bug in setup.py when an extension fails to build

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# Copyright (C) 2004, 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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from cStringIO import StringIO
 
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import errno
 
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import sys
 
20
 
 
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from bzrlib import (
 
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    builtins,
 
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    commands,
 
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    config,
 
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    errors,
 
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    tests,
 
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    )
 
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from bzrlib.commands import display_command
 
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from bzrlib.tests import TestSkipped
 
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class TestCommands(tests.TestCase):
 
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    def test_display_command(self):
 
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        """EPIPE message is selectively suppressed"""
 
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        def pipe_thrower():
 
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            raise IOError(errno.EPIPE, "Bogus pipe error")
 
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        self.assertRaises(IOError, pipe_thrower)
 
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        @display_command
 
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        def non_thrower():
 
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            pipe_thrower()
 
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        non_thrower()
 
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        @display_command
 
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        def other_thrower():
 
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            raise IOError(errno.ESPIPE, "Bogus pipe error")
 
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        self.assertRaises(IOError, other_thrower)
 
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    def test_unicode_command(self):
 
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        # This error is thrown when we can't find the command in the
 
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        # list of available commands
 
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        self.assertRaises(errors.BzrCommandError,
 
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                          commands.run_bzr, [u'cmd\xb5'])
 
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    def test_unicode_option(self):
 
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        # This error is actually thrown by optparse, when it
 
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        # can't find the given option
 
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        import optparse
 
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        if optparse.__version__ == "1.5.3":
 
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            raise TestSkipped("optparse 1.5.3 can't handle unicode options")
 
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        self.assertRaises(errors.BzrCommandError,
 
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                          commands.run_bzr, ['log', u'--option\xb5'])
 
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63
 
 
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class TestGetAlias(tests.TestCase):
 
65
 
 
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    def _get_config(self, config_text):
 
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        my_config = config.GlobalConfig()
 
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        config_file = StringIO(config_text.encode('utf-8'))
 
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        my_config._parser = my_config._get_parser(file=config_file)
 
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        return my_config
 
71
 
 
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    def test_simple(self):
 
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        my_config = self._get_config("[ALIASES]\n"
 
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            "diff=diff -r -2..-1\n")
 
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        self.assertEqual([u'diff', u'-r', u'-2..-1'],
 
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            commands.get_alias("diff", config=my_config))
 
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    def test_single_quotes(self):
 
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        my_config = self._get_config("[ALIASES]\n"
 
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            "diff=diff -r -2..-1 --diff-options "
 
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            "'--strip-trailing-cr -wp'\n")
 
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        self.assertEqual([u'diff', u'-r', u'-2..-1', u'--diff-options',
 
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                          u'--strip-trailing-cr -wp'],
 
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                          commands.get_alias("diff", config=my_config))
 
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    def test_double_quotes(self):
 
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        my_config = self._get_config("[ALIASES]\n"
 
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            "diff=diff -r -2..-1 --diff-options "
 
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            "\"--strip-trailing-cr -wp\"\n")
 
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        self.assertEqual([u'diff', u'-r', u'-2..-1', u'--diff-options',
 
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                          u'--strip-trailing-cr -wp'],
 
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                          commands.get_alias("diff", config=my_config))
 
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    def test_unicode(self):
 
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        my_config = self._get_config("[ALIASES]\n"
 
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            u"iam=whoami 'Erik B\u00e5gfors <erik@bagfors.nu>'\n")
 
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        self.assertEqual([u'whoami', u'Erik B\u00e5gfors <erik@bagfors.nu>'],
 
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                          commands.get_alias("iam", config=my_config))
 
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100
 
 
101
class TestSeeAlso(tests.TestCase):
 
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    """Tests for the see also functional of Command."""
 
103
 
 
104
    def test_default_subclass_no_see_also(self):
 
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        class ACommand(commands.Command):
 
106
            """A sample command."""
 
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        command = ACommand()
 
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        self.assertEqual([], command.get_see_also())
 
109
 
 
110
    def test__see_also(self):
 
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        """When _see_also is defined, it sets the result of get_see_also()."""
 
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        class ACommand(commands.Command):
 
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            _see_also = ['bar', 'foo']
 
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        command = ACommand()
 
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        self.assertEqual(['bar', 'foo'], command.get_see_also())
 
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117
    def test_deduplication(self):
 
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        """Duplicates in _see_also are stripped out."""
 
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        class ACommand(commands.Command):
 
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            _see_also = ['foo', 'foo']
 
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        command = ACommand()
 
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        self.assertEqual(['foo'], command.get_see_also())
 
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    def test_sorted(self):
 
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        """_see_also is sorted by get_see_also."""
 
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        class ACommand(commands.Command):
 
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            _see_also = ['foo', 'bar']
 
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        command = ACommand()
 
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        self.assertEqual(['bar', 'foo'], command.get_see_also())
 
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131
    def test_additional_terms(self):
 
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        """Additional terms can be supplied and are deduped and sorted."""
 
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        class ACommand(commands.Command):
 
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            _see_also = ['foo', 'bar']
 
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        command = ACommand()
 
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        self.assertEqual(['bar', 'foo', 'gam'],
 
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            command.get_see_also(['gam', 'bar', 'gam']))
 
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139
 
 
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class TestRegisterLazy(tests.TestCase):
 
141
 
 
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    def setUp(self):
 
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        import bzrlib.tests.fake_command
 
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        del sys.modules['bzrlib.tests.fake_command']
 
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        global lazy_command_imported
 
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        lazy_command_imported = False
 
147
 
 
148
    @staticmethod
 
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    def remove_fake():
 
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        commands.plugin_cmds.remove('fake')
 
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    def assertIsFakeCommand(self, cmd_obj):
 
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        from bzrlib.tests.fake_command import cmd_fake
 
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        self.assertIsInstance(cmd_obj, cmd_fake)
 
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156
    def test_register_lazy(self):
 
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        """Ensure lazy registration works"""
 
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        commands.plugin_cmds.register_lazy('cmd_fake', [],
 
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                                           'bzrlib.tests.fake_command')
 
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        self.addCleanup(self.remove_fake)
 
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        self.assertFalse(lazy_command_imported)
 
162
        fake_instance = commands.get_cmd_object('fake')
 
163
        self.assertTrue(lazy_command_imported)
 
164
        self.assertIsFakeCommand(fake_instance)
 
165
 
 
166
    def test_get_unrelated_does_not_import(self):
 
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        commands.plugin_cmds.register_lazy('cmd_fake', [],
 
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                                           'bzrlib.tests.fake_command')
 
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        self.addCleanup(self.remove_fake)
 
170
        commands.get_cmd_object('status')
 
171
        self.assertFalse(lazy_command_imported)
 
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173
    def test_aliases(self):
 
174
        commands.plugin_cmds.register_lazy('cmd_fake', ['fake_alias'],
 
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                                           'bzrlib.tests.fake_command')
 
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        self.addCleanup(self.remove_fake)
 
177
        fake_instance = commands.get_cmd_object('fake_alias')
 
178
        self.assertIsFakeCommand(fake_instance)
 
179
 
 
180
 
 
181
class TestExtendCommandHook(tests.TestCase):
 
182
 
 
183
    def test_fires_on_get_cmd_object(self):
 
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        # The extend_command(cmd) hook fires when commands are delivered to the
 
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        # ui, not simply at registration (because lazy registered plugin
 
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        # commands are registered).
 
187
        # when they are simply created.
 
188
        hook_calls = []
 
189
        commands.Command.hooks.install_named_hook(
 
190
            "extend_command", hook_calls.append, None)
 
191
        # create a command, should not fire
 
192
        class ACommand(commands.Command):
 
193
            """A sample command."""
 
194
        cmd = ACommand()
 
195
        self.assertEqual([], hook_calls)
 
196
        # -- as a builtin
 
197
        # register the command class, should not fire
 
198
        try:
 
199
            builtins.cmd_test_extend_command_hook = ACommand
 
200
            self.assertEqual([], hook_calls)
 
201
            # and ask for the object, should fire
 
202
            cmd = commands.get_cmd_object('test-extend-command-hook')
 
203
            # For resilience - to ensure all code paths hit it - we
 
204
            # fire on everything returned in the 'cmd_dict', which is currently
 
205
            # all known commands, so assert that cmd is in hook_calls
 
206
            self.assertSubset([cmd], hook_calls)
 
207
            del hook_calls[:]
 
208
        finally:
 
209
            del builtins.cmd_test_extend_command_hook
 
210
        # -- as a plugin lazy registration
 
211
        try:
 
212
            # register the command class, should not fire
 
213
            commands.plugin_cmds.register_lazy('cmd_fake', [],
 
214
                                               'bzrlib.tests.fake_command')
 
215
            self.assertEqual([], hook_calls)
 
216
            # and ask for the object, should fire
 
217
            cmd = commands.get_cmd_object('fake')
 
218
            self.assertEqual([cmd], hook_calls)
 
219
        finally:
 
220
            commands.plugin_cmds.remove('fake')