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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import testscenarios
from unittest import mock
from cliff import command
from cliff import commandmanager
from cliff.tests import base
from cliff.tests import utils
load_tests = testscenarios.load_tests_apply_scenarios
class TestLookupAndFind(base.TestBase):
scenarios = [
('one-word', {'argv': ['one']}),
('two-words', {'argv': ['two', 'words']}),
('three-words', {'argv': ['three', 'word', 'command']}),
]
def test(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
cmd, name, remaining = mgr.find_command(self.argv)
self.assertTrue(cmd)
self.assertEqual(' '.join(self.argv), name)
self.assertFalse(remaining)
class TestLookupWithRemainder(base.TestBase):
scenarios = [
('one', {'argv': ['one', '--opt']}),
('two', {'argv': ['two', 'words', '--opt']}),
('three', {'argv': ['three', 'word', 'command', '--opt']}),
]
def test(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
cmd, name, remaining = mgr.find_command(self.argv)
self.assertTrue(cmd)
self.assertEqual(['--opt'], remaining)
class TestFindInvalidCommand(base.TestBase):
scenarios = [
('no-such-command', {'argv': ['a', '-b']}),
('no-command-given', {'argv': ['-b']}),
]
def test(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
try:
mgr.find_command(self.argv)
except ValueError as err:
# make sure err include 'a' when ['a', '-b']
self.assertIn(self.argv[0], str(err))
self.assertIn('-b', str(err))
else:
self.fail('expected a failure')
class TestFindUnknownCommand(base.TestBase):
def test(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
try:
mgr.find_command(['a', 'b'])
except ValueError as err:
self.assertIn("['a', 'b']", str(err))
else:
self.fail('expected a failure')
class FooCommand(command.Command):
"""Description of foo command."""
def take_action(self, parsed_args):
return 'foo'
class FooBarCommand(command.Command):
"""Description of foobar command."""
def take_action(self, parsed_args):
return 'foobar'
class TestDynamicCommands(base.TestBase):
def test_add(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
mock_cmd = mock.Mock()
mgr.add_command('mock', mock_cmd)
found_cmd, name, args = mgr.find_command(['mock'])
self.assertIs(mock_cmd, found_cmd)
def test_intersected_commands(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
mgr.add_command('foo', FooCommand)
mgr.add_command('foo bar', FooBarCommand)
self.assertIs(FooBarCommand, mgr.find_command(['foo', 'bar'])[0])
self.assertIs(FooCommand, mgr.find_command(['foo', 'arg0'])[0])
class TestLoad(base.TestBase):
def test_load_commands(self):
testcmd = mock.Mock(name='testcmd')
testcmd.name.replace.return_value = 'test'
mock_get_group_all = mock.Mock(return_value=[testcmd])
with mock.patch(
'stevedore.ExtensionManager', mock_get_group_all
) as mock_manager:
mgr = commandmanager.CommandManager('test')
mock_manager.assert_called_once_with('test')
names = [n for n, v in mgr]
self.assertEqual(['test'], names)
def test_load_commands_keep_underscores(self):
testcmd = mock.Mock()
testcmd.name = 'test_cmd'
mock_get_group_all = mock.Mock(return_value=[testcmd])
with mock.patch(
'stevedore.ExtensionManager', mock_get_group_all
) as mock_manager:
mgr = commandmanager.CommandManager(
'test',
convert_underscores=False,
)
mock_manager.assert_called_once_with('test')
names = [n for n, v in mgr]
self.assertEqual(['test_cmd'], names)
def test_load_commands_replace_underscores(self):
testcmd = mock.Mock()
testcmd.name = 'test_cmd'
mock_get_group_all = mock.Mock(return_value=[testcmd])
with mock.patch(
'stevedore.ExtensionManager', mock_get_group_all
) as mock_manager:
mgr = commandmanager.CommandManager(
'test',
convert_underscores=True,
)
mock_manager.assert_called_once_with('test')
names = [n for n, v in mgr]
self.assertEqual(['test cmd'], names)
class FauxCommand(command.Command):
def take_action(self, parsed_args):
return 0
class FauxCommand2(FauxCommand):
pass
class TestLegacyCommand(base.TestBase):
def test_find_legacy(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
mgr.add_command('new name', FauxCommand)
mgr.add_legacy_command('old name', 'new name')
cmd, name, remaining = mgr.find_command(['old', 'name'])
self.assertIs(cmd, FauxCommand)
self.assertEqual(name, 'old name')
def test_legacy_overrides_new(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
mgr.add_command('cmd1', FauxCommand)
mgr.add_command('cmd2', FauxCommand2)
mgr.add_legacy_command('cmd2', 'cmd1')
cmd, name, remaining = mgr.find_command(['cmd2'])
self.assertIs(cmd, FauxCommand)
self.assertEqual(name, 'cmd2')
def test_no_legacy(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
mgr.add_command('cmd1', FauxCommand)
self.assertRaises(
ValueError,
mgr.find_command,
['cmd2'],
)
def test_no_command(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
mgr.add_legacy_command('cmd2', 'cmd1')
self.assertRaises(
ValueError,
mgr.find_command,
['cmd2'],
)
class TestLookupAndFindPartialName(base.TestBase):
scenarios = [
('one-word', {'argv': ['o']}),
('two-words', {'argv': ['t', 'w']}),
('three-words', {'argv': ['t', 'w', 'c']}),
]
def test(self):
mgr = utils.TestCommandManager(utils.TEST_NAMESPACE)
cmd, name, remaining = mgr.find_command(self.argv)
self.assertTrue(cmd)
self.assertEqual(' '.join(self.argv), name)
self.assertFalse(remaining)
class TestGetByPartialName(base.TestBase):
def setUp(self):
super().setUp()
self.commands = {
'resource provider list': 1,
'resource class list': 2,
'server list': 3,
'service list': 4,
}
def test_no_candidates(self):
self.assertEqual(
[],
commandmanager._get_commands_by_partial_name(
['r', 'p'], list(self.commands)
),
)
self.assertEqual(
[],
commandmanager._get_commands_by_partial_name(
['r', 'p', 'c'], list(self.commands)
),
)
def test_multiple_candidates(self):
self.assertEqual(
2,
len(
commandmanager._get_commands_by_partial_name(
['se', 'li'], list(self.commands)
)
),
)
def test_one_candidate(self):
self.assertEqual(
['resource provider list'],
commandmanager._get_commands_by_partial_name(
['r', 'p', 'l'], list(self.commands)
),
)
self.assertEqual(
['resource provider list'],
commandmanager._get_commands_by_partial_name(
['resource', 'provider', 'list'], list(self.commands)
),
)
self.assertEqual(
['server list'],
commandmanager._get_commands_by_partial_name(
['serve', 'l'], list(self.commands)
),
)
FAKE_CMD_ONE = commandmanager.EntryPointWrapper('one', utils.TestCommand)
FAKE_CMD_TWO = commandmanager.EntryPointWrapper('two', utils.TestCommand)
FAKE_CMD_ALPHA = commandmanager.EntryPointWrapper('alpha', utils.TestCommand)
FAKE_CMD_BETA = commandmanager.EntryPointWrapper('beta', utils.TestCommand)
class FakeCommandManager(commandmanager.CommandManager):
commands = {}
def load_commands(self, namespace):
if namespace == 'test':
self.commands['one'] = FAKE_CMD_ONE
self.commands['two'] = FAKE_CMD_TWO
self.group_list.append(namespace)
elif namespace == 'greek':
self.commands['alpha'] = FAKE_CMD_ALPHA
self.commands['beta'] = FAKE_CMD_BETA
self.group_list.append(namespace)
class TestCommandManagerGroups(base.TestBase):
def test_add_command_group(self):
mgr = FakeCommandManager('test')
# Make sure add_command() still functions
mock_cmd_one = mock.Mock()
mgr.add_command('mock', mock_cmd_one)
cmd_mock, name, args = mgr.find_command(['mock'])
self.assertEqual(mock_cmd_one, cmd_mock)
# Find a command added in initialization
cmd_one, name, args = mgr.find_command(['one'])
self.assertEqual(FAKE_CMD_ONE.load(), cmd_one)
# Load another command group
mgr.add_command_group('greek')
# Find a new command
cmd_alpha, name, args = mgr.find_command(['alpha'])
self.assertEqual(FAKE_CMD_ALPHA.load(), cmd_alpha)
# Ensure that the original commands were not overwritten
cmd_two, name, args = mgr.find_command(['two'])
self.assertEqual(FAKE_CMD_TWO.load(), cmd_two)
def test_get_command_groups(self):
mgr = FakeCommandManager('test')
# Make sure add_command() still functions
mock_cmd_one = mock.Mock()
mgr.add_command('mock', mock_cmd_one)
cmd_mock, name, args = mgr.find_command(['mock'])
self.assertEqual(mock_cmd_one, cmd_mock)
# Load another command group
mgr.add_command_group('greek')
gl = mgr.get_command_groups()
self.assertEqual(['test', 'greek'], gl)
def test_get_command_names(self):
mock_cmd_one = mock.Mock()
mock_cmd_one.name = 'one'
mock_cmd_two = mock.Mock()
mock_cmd_two.name = 'cmd two'
mock_get_group_all = mock.Mock(
return_value=[mock_cmd_one, mock_cmd_two],
)
with mock.patch(
'stevedore.ExtensionManager',
mock_get_group_all,
) as mock_manager:
mgr = commandmanager.CommandManager('test')
mock_manager.assert_called_once_with('test')
cmds = mgr.get_command_names('test')
self.assertEqual(['one', 'cmd two'], cmds)
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