bazarr/libs/stevedore/tests/test_hook.py

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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.
from stevedore import hook
from stevedore.tests import utils
class TestHook(utils.TestCase):
def test_hook(self):
em = hook.HookManager(
'stevedore.test.extension',
't1',
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
self.assertEqual(len(em.extensions), 1)
self.assertEqual(em.names(), ['t1'])
def test_get_by_name(self):
em = hook.HookManager(
'stevedore.test.extension',
't1',
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
e_list = em['t1']
self.assertEqual(len(e_list), 1)
e = e_list[0]
self.assertEqual(e.name, 't1')
def test_get_by_name_missing(self):
em = hook.HookManager(
'stevedore.test.extension',
't1',
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
try:
em['t2']
except KeyError:
pass
else:
assert False, 'Failed to raise KeyError'