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bazarr/libs/stevedore/tests/test_dispatch.py

104 lines
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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 dispatch
from stevedore.tests import utils
def check_dispatch(ep, *args, **kwds):
return ep.name == 't2'
class TestDispatch(utils.TestCase):
def check_dispatch(ep, *args, **kwds):
return ep.name == 't2'
def test_dispatch(self):
def invoke(ep, *args, **kwds):
return (ep.name, args, kwds)
em = dispatch.DispatchExtensionManager('stevedore.test.extension',
lambda *args, **kwds: True,
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
self.assertEqual(len(em.extensions), 2)
self.assertEqual(set(em.names()), set(['t1', 't2']))
results = em.map(check_dispatch,
invoke,
'first',
named='named value',
)
expected = [('t2', ('first',), {'named': 'named value'})]
self.assertEqual(results, expected)
def test_dispatch_map_method(self):
em = dispatch.DispatchExtensionManager('stevedore.test.extension',
lambda *args, **kwds: True,
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
results = em.map_method(check_dispatch, 'get_args_and_data', 'first')
self.assertEqual(results, [(('a',), {'b': 'B'}, 'first')])
def test_name_dispatch(self):
def invoke(ep, *args, **kwds):
return (ep.name, args, kwds)
em = dispatch.NameDispatchExtensionManager('stevedore.test.extension',
lambda *args, **kwds: True,
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
self.assertEqual(len(em.extensions), 2)
self.assertEqual(set(em.names()), set(['t1', 't2']))
results = em.map(['t2'], invoke, 'first', named='named value',)
expected = [('t2', ('first',), {'named': 'named value'})]
self.assertEqual(results, expected)
def test_name_dispatch_ignore_missing(self):
def invoke(ep, *args, **kwds):
return (ep.name, args, kwds)
em = dispatch.NameDispatchExtensionManager(
'stevedore.test.extension',
lambda *args, **kwds: True,
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
results = em.map(['t3', 't1'], invoke, 'first', named='named value',)
expected = [('t1', ('first',), {'named': 'named value'})]
self.assertEqual(results, expected)
def test_name_dispatch_map_method(self):
em = dispatch.NameDispatchExtensionManager(
'stevedore.test.extension',
lambda *args, **kwds: True,
invoke_on_load=True,
invoke_args=('a',),
invoke_kwds={'b': 'B'},
)
results = em.map_method(['t3', 't1'], 'get_args_and_data', 'first')
self.assertEqual(results, [(('a',), {'b': 'B'}, 'first')])