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# Copyright (C) 2005-2010 Canonical Ltd
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
from cStringIO import StringIO
import errno
import sys
from bzrlib import (
builtins,
commands,
config,
errors,
option,
symbol_versioning,
tests,
)
from bzrlib.commands import display_command
from bzrlib.tests import TestSkipped
class TestCommands(tests.TestCase):
def test_display_command(self):
"""EPIPE message is selectively suppressed"""
def pipe_thrower():
raise IOError(errno.EPIPE, "Bogus pipe error")
self.assertRaises(IOError, pipe_thrower)
@display_command
def non_thrower():
pipe_thrower()
non_thrower()
@display_command
def other_thrower():
raise IOError(errno.ESPIPE, "Bogus pipe error")
self.assertRaises(IOError, other_thrower)
def test_unicode_command(self):
# This error is thrown when we can't find the command in the
# list of available commands
self.assertRaises(errors.BzrCommandError,
commands.run_bzr, [u'cmd\xb5'])
def test_unicode_option(self):
# This error is actually thrown by optparse, when it
# can't find the given option
import optparse
if optparse.__version__ == "1.5.3":
raise TestSkipped("optparse 1.5.3 can't handle unicode options")
self.assertRaises(errors.BzrCommandError,
commands.run_bzr, ['log', u'--option\xb5'])
@staticmethod
def get_command(options):
class cmd_foo(commands.Command):
__doc__ = 'Bar'
takes_options = options
return cmd_foo()
def test_help_hidden(self):
c = self.get_command([option.Option('foo', hidden=True)])
self.assertNotContainsRe(c.get_help_text(), '--foo')
def test_help_not_hidden(self):
c = self.get_command([option.Option('foo', hidden=False)])
self.assertContainsRe(c.get_help_text(), '--foo')
def test_no_help_init_failure(self):
class cmd_foo(commands.Command):
pass
self.assertRaises(ValueError, cmd_foo)
class TestGetAlias(tests.TestCase):
def _get_config(self, config_text):
my_config = config.GlobalConfig()
config_file = StringIO(config_text.encode('utf-8'))
my_config._parser = my_config._get_parser(file=config_file)
return my_config
def test_simple(self):
my_config = self._get_config("[ALIASES]\n"
"diff=diff -r -2..-1\n")
self.assertEqual([u'diff', u'-r', u'-2..-1'],
commands.get_alias("diff", config=my_config))
def test_single_quotes(self):
my_config = self._get_config("[ALIASES]\n"
"diff=diff -r -2..-1 --diff-options "
"'--strip-trailing-cr -wp'\n")
self.assertEqual([u'diff', u'-r', u'-2..-1', u'--diff-options',
u'--strip-trailing-cr -wp'],
commands.get_alias("diff", config=my_config))
def test_double_quotes(self):
my_config = self._get_config("[ALIASES]\n"
"diff=diff -r -2..-1 --diff-options "
"\"--strip-trailing-cr -wp\"\n")
self.assertEqual([u'diff', u'-r', u'-2..-1', u'--diff-options',
u'--strip-trailing-cr -wp'],
commands.get_alias("diff", config=my_config))
def test_unicode(self):
my_config = self._get_config("[ALIASES]\n"
u'iam=whoami "Erik B\u00e5gfors <erik@bagfors.nu>"\n')
self.assertEqual([u'whoami', u'Erik B\u00e5gfors <erik@bagfors.nu>'],
commands.get_alias("iam", config=my_config))
class TestSeeAlso(tests.TestCase):
"""Tests for the see also functional of Command."""
@staticmethod
def _get_command_with_see_also(see_also):
class ACommand(commands.Command):
__doc__ = """A sample command."""
_see_also = see_also
return ACommand()
def test_default_subclass_no_see_also(self):
command = self._get_command_with_see_also([])
self.assertEqual([], command.get_see_also())
def test__see_also(self):
"""When _see_also is defined, it sets the result of get_see_also()."""
command = self._get_command_with_see_also(['bar', 'foo'])
self.assertEqual(['bar', 'foo'], command.get_see_also())
def test_deduplication(self):
"""Duplicates in _see_also are stripped out."""
command = self._get_command_with_see_also(['foo', 'foo'])
self.assertEqual(['foo'], command.get_see_also())
def test_sorted(self):
"""_see_also is sorted by get_see_also."""
command = self._get_command_with_see_also(['foo', 'bar'])
self.assertEqual(['bar', 'foo'], command.get_see_also())
def test_additional_terms(self):
"""Additional terms can be supplied and are deduped and sorted."""
command = self._get_command_with_see_also(['foo', 'bar'])
self.assertEqual(['bar', 'foo', 'gam'],
command.get_see_also(['gam', 'bar', 'gam']))
class TestRegisterLazy(tests.TestCase):
def setUp(self):
tests.TestCase.setUp(self)
import bzrlib.tests.fake_command
del sys.modules['bzrlib.tests.fake_command']
global lazy_command_imported
lazy_command_imported = False
commands.install_bzr_command_hooks()
@staticmethod
def remove_fake():
commands.plugin_cmds.remove('fake')
def assertIsFakeCommand(self, cmd_obj):
from bzrlib.tests.fake_command import cmd_fake
self.assertIsInstance(cmd_obj, cmd_fake)
def test_register_lazy(self):
"""Ensure lazy registration works"""
commands.plugin_cmds.register_lazy('cmd_fake', [],
'bzrlib.tests.fake_command')
self.addCleanup(self.remove_fake)
self.assertFalse(lazy_command_imported)
fake_instance = commands.get_cmd_object('fake')
self.assertTrue(lazy_command_imported)
self.assertIsFakeCommand(fake_instance)
def test_get_unrelated_does_not_import(self):
commands.plugin_cmds.register_lazy('cmd_fake', [],
'bzrlib.tests.fake_command')
self.addCleanup(self.remove_fake)
commands.get_cmd_object('status')
self.assertFalse(lazy_command_imported)
def test_aliases(self):
commands.plugin_cmds.register_lazy('cmd_fake', ['fake_alias'],
'bzrlib.tests.fake_command')
self.addCleanup(self.remove_fake)
fake_instance = commands.get_cmd_object('fake_alias')
self.assertIsFakeCommand(fake_instance)
class TestExtendCommandHook(tests.TestCase):
def test_fires_on_get_cmd_object(self):
# The extend_command(cmd) hook fires when commands are delivered to the
# ui, not simply at registration (because lazy registered plugin
# commands are registered).
# when they are simply created.
hook_calls = []
commands.install_bzr_command_hooks()
commands.Command.hooks.install_named_hook(
"extend_command", hook_calls.append, None)
# create a command, should not fire
class cmd_test_extend_command_hook(commands.Command):
__doc__ = """A sample command."""
self.assertEqual([], hook_calls)
# -- as a builtin
# register the command class, should not fire
try:
commands.builtin_command_registry.register(cmd_test_extend_command_hook)
self.assertEqual([], hook_calls)
# and ask for the object, should fire
cmd = commands.get_cmd_object('test-extend-command-hook')
# For resilience - to ensure all code paths hit it - we
# fire on everything returned in the 'cmd_dict', which is currently
# all known commands, so assert that cmd is in hook_calls
self.assertSubset([cmd], hook_calls)
del hook_calls[:]
finally:
commands.builtin_command_registry.remove('test-extend-command-hook')
# -- as a plugin lazy registration
try:
# register the command class, should not fire
commands.plugin_cmds.register_lazy('cmd_fake', [],
'bzrlib.tests.fake_command')
self.assertEqual([], hook_calls)
# and ask for the object, should fire
cmd = commands.get_cmd_object('fake')
self.assertEqual([cmd], hook_calls)
finally:
commands.plugin_cmds.remove('fake')
class TestGetCommandHook(tests.TestCase):
def test_fires_on_get_cmd_object(self):
# The get_command(cmd) hook fires when commands are delivered to the
# ui.
commands.install_bzr_command_hooks()
hook_calls = []
class ACommand(commands.Command):
__doc__ = """A sample command."""
def get_cmd(cmd_or_None, cmd_name):
hook_calls.append(('called', cmd_or_None, cmd_name))
if cmd_name in ('foo', 'info'):
return ACommand()
commands.Command.hooks.install_named_hook(
"get_command", get_cmd, None)
# create a command directly, should not fire
cmd = ACommand()
self.assertEqual([], hook_calls)
# ask by name, should fire and give us our command
cmd = commands.get_cmd_object('foo')
self.assertEqual([('called', None, 'foo')], hook_calls)
self.assertIsInstance(cmd, ACommand)
del hook_calls[:]
# ask by a name that is supplied by a builtin - the hook should still
# fire and we still get our object, but we should see the builtin
# passed to the hook.
cmd = commands.get_cmd_object('info')
self.assertIsInstance(cmd, ACommand)
self.assertEqual(1, len(hook_calls))
self.assertEqual('info', hook_calls[0][2])
self.assertIsInstance(hook_calls[0][1], builtins.cmd_info)
class TestGetMissingCommandHook(tests.TestCase):
def hook_missing(self):
"""Hook get_missing_command for testing."""
self.hook_calls = []
class ACommand(commands.Command):
__doc__ = """A sample command."""
def get_missing_cmd(cmd_name):
self.hook_calls.append(('called', cmd_name))
if cmd_name in ('foo', 'info'):
return ACommand()
commands.Command.hooks.install_named_hook(
"get_missing_command", get_missing_cmd, None)
self.ACommand = ACommand
def test_fires_on_get_cmd_object(self):
# The get_missing_command(cmd) hook fires when commands are delivered to the
# ui.
self.hook_missing()
# create a command directly, should not fire
self.cmd = self.ACommand()
self.assertEqual([], self.hook_calls)
# ask by name, should fire and give us our command
cmd = commands.get_cmd_object('foo')
self.assertEqual([('called', 'foo')], self.hook_calls)
self.assertIsInstance(cmd, self.ACommand)
del self.hook_calls[:]
# ask by a name that is supplied by a builtin - the hook should not
# fire and we still get our object.
commands.install_bzr_command_hooks()
cmd = commands.get_cmd_object('info')
self.assertNotEqual(None, cmd)
self.assertEqual(0, len(self.hook_calls))
def test_skipped_on_HelpCommandIndex_get_topics(self):
# The get_missing_command(cmd_name) hook is not fired when
# looking up help topics.
self.hook_missing()
topic = commands.HelpCommandIndex()
topics = topic.get_topics('foo')
self.assertEqual([], self.hook_calls)
class TestListCommandHook(tests.TestCase):
def test_fires_on_all_command_names(self):
# The list_commands() hook fires when all_command_names() is invoked.
hook_calls = []
commands.install_bzr_command_hooks()
def list_my_commands(cmd_names):
hook_calls.append('called')
cmd_names.update(['foo', 'bar'])
return cmd_names
commands.Command.hooks.install_named_hook(
"list_commands", list_my_commands, None)
# Get a command, which should not trigger the hook.
cmd = commands.get_cmd_object('info')
self.assertEqual([], hook_calls)
# Get all command classes (for docs and shell completion).
cmds = list(commands.all_command_names())
self.assertEqual(['called'], hook_calls)
self.assertSubset(['foo', 'bar'], cmds)
class TestDeprecations(tests.TestCase):
def test_shlex_split_unicode_deprecation(self):
res = self.applyDeprecated(
symbol_versioning.deprecated_in((2, 2, 0)),
commands.shlex_split_unicode, 'whatever')
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