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Viewing changes to breezy/tests/test_commands.py

  • Committer: Martin
  • Date: 2017-06-27 00:57:14 UTC
  • mto: This revision was merged to the branch mainline in revision 6722.
  • Revision ID: gzlist@googlemail.com-20170627005714-64ns3u0x5g866cdp
Adapt StaticTuple tests to change in comparison semantics on Python 3

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breezy/tests/test_commands.py
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# Copyright (C) 2005-2010 Canonical Ltd
 
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# Copyright (C) 2005-2012, 2016 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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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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from cStringIO import StringIO
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import errno
 
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import inspect
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import sys
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20
 
21
 
from bzrlib import (
 
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from .. 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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    option,
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    symbol_versioning,
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    tests,
 
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    trace,
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    )
30
 
from bzrlib.commands import display_command
31
 
from bzrlib.tests import TestSkipped
 
30
from ..commands import display_command
 
31
from . import TestSkipped
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34
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class TestCommands(tests.TestCase):
35
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36
    def test_all_commands_have_help(self):
 
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        commands._register_builtin_commands()
 
38
        commands_without_help = set()
 
39
        base_doc = inspect.getdoc(commands.Command)
 
40
        for cmd_name in commands.all_command_names():
 
41
            cmd = commands.get_cmd_object(cmd_name)
 
42
            cmd_help = cmd.help()
 
43
            if not cmd_help or cmd_help == base_doc:
 
44
                commands_without_help.append(cmd_name)
 
45
        self.assertLength(0, commands_without_help)
 
46
 
36
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    def test_display_command(self):
37
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        """EPIPE message is selectively suppressed"""
38
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        def pipe_thrower():
80
91
        self.assertContainsRe(c.get_help_text(), '--foo')
81
92
 
82
93
 
 
94
class TestInsideCommand(tests.TestCaseInTempDir):
 
95
 
 
96
    def test_command_see_config_overrides(self):
 
97
        def run(cmd):
 
98
            # We override the run() command method so we can observe the
 
99
            # overrides from inside.
 
100
            c = config.GlobalStack()
 
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            self.assertEqual('12', c.get('xx'))
 
102
            self.assertEqual('foo', c.get('yy'))
 
103
        self.overrideAttr(builtins.cmd_rocks, 'run', run)
 
104
        self.run_bzr(['rocks', '-Oxx=12', '-Oyy=foo'])
 
105
        c = config.GlobalStack()
 
106
        # Ensure that we don't leak outside of the command
 
107
        self.assertEqual(None, c.get('xx'))
 
108
        self.assertEqual(None, c.get('yy'))
 
109
 
 
110
 
 
111
class TestInvokedAs(tests.TestCase):
 
112
 
 
113
    def test_invoked_as(self):
 
114
        """The command object knows the actual name used to invoke it."""
 
115
        commands.install_bzr_command_hooks()
 
116
        commands._register_builtin_commands()
 
117
        # get one from the real get_cmd_object.
 
118
        c = commands.get_cmd_object('ci')
 
119
        self.assertIsInstance(c, builtins.cmd_commit)
 
120
        self.assertEqual(c.invoked_as, 'ci')
 
121
 
 
122
 
83
123
class TestGetAlias(tests.TestCase):
84
124
 
85
125
    def _get_config(self, config_text):
86
 
        my_config = config.GlobalConfig()
87
 
        config_file = StringIO(config_text.encode('utf-8'))
88
 
        my_config._parser = my_config._get_parser(file=config_file)
 
126
        my_config = config.GlobalConfig.from_string(config_text)
89
127
        return my_config
90
128
 
91
129
    def test_simple(self):
156
194
class TestRegisterLazy(tests.TestCase):
157
195
 
158
196
    def setUp(self):
159
 
        tests.TestCase.setUp(self)
160
 
        import bzrlib.tests.fake_command
161
 
        del sys.modules['bzrlib.tests.fake_command']
 
197
        super(TestRegisterLazy, self).setUp()
 
198
        import breezy.tests.fake_command
 
199
        del sys.modules['breezy.tests.fake_command']
162
200
        global lazy_command_imported
163
201
        lazy_command_imported = False
164
202
        commands.install_bzr_command_hooks()
168
206
        commands.plugin_cmds.remove('fake')
169
207
 
170
208
    def assertIsFakeCommand(self, cmd_obj):
171
 
        from bzrlib.tests.fake_command import cmd_fake
 
209
        from breezy.tests.fake_command import cmd_fake
172
210
        self.assertIsInstance(cmd_obj, cmd_fake)
173
211
 
174
212
    def test_register_lazy(self):
175
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        """Ensure lazy registration works"""
176
214
        commands.plugin_cmds.register_lazy('cmd_fake', [],
177
 
                                           'bzrlib.tests.fake_command')
 
215
                                           'breezy.tests.fake_command')
178
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        self.addCleanup(self.remove_fake)
179
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        self.assertFalse(lazy_command_imported)
180
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        fake_instance = commands.get_cmd_object('fake')
183
221
 
184
222
    def test_get_unrelated_does_not_import(self):
185
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        commands.plugin_cmds.register_lazy('cmd_fake', [],
186
 
                                           'bzrlib.tests.fake_command')
 
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                                           'breezy.tests.fake_command')
187
225
        self.addCleanup(self.remove_fake)
188
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        commands.get_cmd_object('status')
189
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        self.assertFalse(lazy_command_imported)
190
228
 
191
229
    def test_aliases(self):
192
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        commands.plugin_cmds.register_lazy('cmd_fake', ['fake_alias'],
193
 
                                           'bzrlib.tests.fake_command')
 
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                                           'breezy.tests.fake_command')
194
232
        self.addCleanup(self.remove_fake)
195
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        fake_instance = commands.get_cmd_object('fake_alias')
196
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        self.assertIsFakeCommand(fake_instance)
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        try:
230
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            # register the command class, should not fire
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            commands.plugin_cmds.register_lazy('cmd_fake', [],
232
 
                                               'bzrlib.tests.fake_command')
 
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                                               'breezy.tests.fake_command')
233
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            self.assertEqual([], hook_calls)
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            # and ask for the object, should fire
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            cmd = commands.get_cmd_object('fake')
334
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        self.assertEqual(['called'], hook_calls)
335
373
        self.assertSubset(['foo', 'bar'], cmds)
336
374
 
337
 
class TestDeprecations(tests.TestCase):
338
 
 
339
 
    def test_shlex_split_unicode_deprecation(self):
340
 
        res = self.applyDeprecated(
341
 
                symbol_versioning.deprecated_in((2, 2, 0)),
342
 
                commands.shlex_split_unicode, 'whatever')
 
375
class TestPreAndPostCommandHooks(tests.TestCase):
 
376
    class TestError(Exception):
 
377
        __doc__ = """A test exception."""
 
378
 
 
379
    def test_pre_and_post_hooks(self):
 
380
        hook_calls = []
 
381
 
 
382
        def pre_command(cmd):
 
383
            self.assertEqual([], hook_calls)
 
384
            hook_calls.append('pre')
 
385
 
 
386
        def post_command(cmd):
 
387
            self.assertEqual(['pre', 'run'], hook_calls)
 
388
            hook_calls.append('post')
 
389
 
 
390
        def run(cmd):
 
391
            self.assertEqual(['pre'], hook_calls)
 
392
            hook_calls.append('run')
 
393
 
 
394
        self.overrideAttr(builtins.cmd_rocks, 'run', run)
 
395
        commands.install_bzr_command_hooks()
 
396
        commands.Command.hooks.install_named_hook(
 
397
            "pre_command", pre_command, None)
 
398
        commands.Command.hooks.install_named_hook(
 
399
            "post_command", post_command, None)
 
400
 
 
401
        self.assertEqual([], hook_calls)
 
402
        self.run_bzr(['rocks', '-Oxx=12', '-Oyy=foo'])
 
403
        self.assertEqual(['pre', 'run', 'post'], hook_calls)
 
404
 
 
405
    def test_post_hook_provided_exception(self):
 
406
        hook_calls = []
 
407
 
 
408
        def post_command(cmd):
 
409
            hook_calls.append('post')
 
410
 
 
411
        def run(cmd):
 
412
            hook_calls.append('run')
 
413
            raise self.TestError()
 
414
 
 
415
        self.overrideAttr(builtins.cmd_rocks, 'run', run)
 
416
        commands.install_bzr_command_hooks()
 
417
        commands.Command.hooks.install_named_hook(
 
418
            "post_command", post_command, None)
 
419
 
 
420
        self.assertEqual([], hook_calls)
 
421
        self.assertRaises(self.TestError, commands.run_bzr, [u'rocks'])
 
422
        self.assertEqual(['run', 'post'], hook_calls)
 
423
 
 
424
    def test_pre_command_error(self):
 
425
        """Ensure an BzrCommandError in pre_command aborts the command"""
 
426
 
 
427
        hook_calls = []
 
428
 
 
429
        def pre_command(cmd):
 
430
            hook_calls.append('pre')
 
431
            # verify that all subclasses of BzrCommandError caught too
 
432
            raise errors.BzrOptionError()
 
433
 
 
434
        def post_command(cmd, e):
 
435
            self.fail('post_command should not be called')
 
436
 
 
437
        def run(cmd):
 
438
            self.fail('command should not be called')
 
439
 
 
440
        self.overrideAttr(builtins.cmd_rocks, 'run', run)
 
441
        commands.install_bzr_command_hooks()
 
442
        commands.Command.hooks.install_named_hook(
 
443
            "pre_command", pre_command, None)
 
444
        commands.Command.hooks.install_named_hook(
 
445
            "post_command", post_command, None)
 
446
 
 
447
        self.assertEqual([], hook_calls)
 
448
        self.assertRaises(errors.BzrCommandError,
 
449
                          commands.run_bzr, [u'rocks'])
 
450
        self.assertEqual(['pre'], hook_calls)
 
451