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bazarr/libs/stevedore/tests/test_test_manager.py
2018-09-16 20:33:04 -04:00

216 lines
9.2 KiB
Python

# 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 mock import Mock, sentinel
from stevedore import (ExtensionManager, NamedExtensionManager, HookManager,
DriverManager, EnabledExtensionManager)
from stevedore.dispatch import (DispatchExtensionManager,
NameDispatchExtensionManager)
from stevedore.extension import Extension
from stevedore.tests import utils
test_extension = Extension('test_extension', None, None, None)
test_extension2 = Extension('another_one', None, None, None)
mock_entry_point = Mock(module_name='test.extension', attrs=['obj'])
a_driver = Extension('test_driver', mock_entry_point, sentinel.driver_plugin,
sentinel.driver_obj)
# base ExtensionManager
class TestTestManager(utils.TestCase):
def test_instance_should_use_supplied_extensions(self):
extensions = [test_extension, test_extension2]
em = ExtensionManager.make_test_instance(extensions)
self.assertEqual(extensions, em.extensions)
def test_instance_should_have_default_namespace(self):
em = ExtensionManager.make_test_instance([])
self.assertEqual(em.namespace, 'TESTING')
def test_instance_should_use_supplied_namespace(self):
namespace = 'testing.1.2.3'
em = ExtensionManager.make_test_instance([], namespace=namespace)
self.assertEqual(namespace, em.namespace)
def test_extension_name_should_be_listed(self):
em = ExtensionManager.make_test_instance([test_extension])
self.assertIn(test_extension.name, em.names())
def test_iterator_should_yield_extension(self):
em = ExtensionManager.make_test_instance([test_extension])
self.assertEqual(test_extension, next(iter(em)))
def test_manager_should_allow_name_access(self):
em = ExtensionManager.make_test_instance([test_extension])
self.assertEqual(test_extension, em[test_extension.name])
def test_manager_should_call(self):
em = ExtensionManager.make_test_instance([test_extension])
func = Mock()
em.map(func)
func.assert_called_once_with(test_extension)
def test_manager_should_call_all(self):
em = ExtensionManager.make_test_instance([test_extension2,
test_extension])
func = Mock()
em.map(func)
func.assert_any_call(test_extension2)
func.assert_any_call(test_extension)
def test_manager_return_values(self):
def mapped(ext, *args, **kwds):
return ext.name
em = ExtensionManager.make_test_instance([test_extension2,
test_extension])
results = em.map(mapped)
self.assertEqual(sorted(results), ['another_one', 'test_extension'])
def test_manager_should_eat_exceptions(self):
em = ExtensionManager.make_test_instance([test_extension])
func = Mock(side_effect=RuntimeError('hard coded error'))
results = em.map(func, 1, 2, a='A', b='B')
self.assertEqual(results, [])
def test_manager_should_propagate_exceptions(self):
em = ExtensionManager.make_test_instance([test_extension],
propagate_map_exceptions=True)
self.skipTest('Skipping temporarily')
func = Mock(side_effect=RuntimeError('hard coded error'))
em.map(func, 1, 2, a='A', b='B')
# NamedExtensionManager
def test_named_manager_should_use_supplied_extensions(self):
extensions = [test_extension, test_extension2]
em = NamedExtensionManager.make_test_instance(extensions)
self.assertEqual(extensions, em.extensions)
def test_named_manager_should_have_default_namespace(self):
em = NamedExtensionManager.make_test_instance([])
self.assertEqual(em.namespace, 'TESTING')
def test_named_manager_should_use_supplied_namespace(self):
namespace = 'testing.1.2.3'
em = NamedExtensionManager.make_test_instance([], namespace=namespace)
self.assertEqual(namespace, em.namespace)
def test_named_manager_should_populate_names(self):
extensions = [test_extension, test_extension2]
em = NamedExtensionManager.make_test_instance(extensions)
self.assertEqual(em.names(), ['test_extension', 'another_one'])
# HookManager
def test_hook_manager_should_use_supplied_extensions(self):
extensions = [test_extension, test_extension2]
em = HookManager.make_test_instance(extensions)
self.assertEqual(extensions, em.extensions)
def test_hook_manager_should_be_first_extension_name(self):
extensions = [test_extension, test_extension2]
em = HookManager.make_test_instance(extensions)
# This will raise KeyError if the names don't match
assert(em[test_extension.name])
def test_hook_manager_should_have_default_namespace(self):
em = HookManager.make_test_instance([test_extension])
self.assertEqual(em.namespace, 'TESTING')
def test_hook_manager_should_use_supplied_namespace(self):
namespace = 'testing.1.2.3'
em = HookManager.make_test_instance([test_extension],
namespace=namespace)
self.assertEqual(namespace, em.namespace)
def test_hook_manager_should_return_named_extensions(self):
hook1 = Extension('captain', None, None, None)
hook2 = Extension('captain', None, None, None)
em = HookManager.make_test_instance([hook1, hook2])
self.assertEqual([hook1, hook2], em['captain'])
# DriverManager
def test_driver_manager_should_use_supplied_extension(self):
em = DriverManager.make_test_instance(a_driver)
self.assertEqual([a_driver], em.extensions)
def test_driver_manager_should_have_default_namespace(self):
em = DriverManager.make_test_instance(a_driver)
self.assertEqual(em.namespace, 'TESTING')
def test_driver_manager_should_use_supplied_namespace(self):
namespace = 'testing.1.2.3'
em = DriverManager.make_test_instance(a_driver, namespace=namespace)
self.assertEqual(namespace, em.namespace)
def test_instance_should_use_driver_name(self):
em = DriverManager.make_test_instance(a_driver)
self.assertEqual(['test_driver'], em.names())
def test_instance_call(self):
def invoke(ext, *args, **kwds):
return ext.name, args, kwds
em = DriverManager.make_test_instance(a_driver)
result = em(invoke, 'a', b='C')
self.assertEqual(result, ('test_driver', ('a',), {'b': 'C'}))
def test_instance_driver_property(self):
em = DriverManager.make_test_instance(a_driver)
self.assertEqual(sentinel.driver_obj, em.driver)
# EnabledExtensionManager
def test_enabled_instance_should_use_supplied_extensions(self):
extensions = [test_extension, test_extension2]
em = EnabledExtensionManager.make_test_instance(extensions)
self.assertEqual(extensions, em.extensions)
# DispatchExtensionManager
def test_dispatch_instance_should_use_supplied_extensions(self):
extensions = [test_extension, test_extension2]
em = DispatchExtensionManager.make_test_instance(extensions)
self.assertEqual(extensions, em.extensions)
def test_dispatch_map_should_invoke_filter_for_extensions(self):
em = DispatchExtensionManager.make_test_instance([test_extension,
test_extension2])
filter_func = Mock(return_value=False)
args = ('A',)
kw = {'big': 'Cheese'}
em.map(filter_func, None, *args, **kw)
filter_func.assert_any_call(test_extension, *args, **kw)
filter_func.assert_any_call(test_extension2, *args, **kw)
# NameDispatchExtensionManager
def test_name_dispatch_instance_should_use_supplied_extensions(self):
extensions = [test_extension, test_extension2]
em = NameDispatchExtensionManager.make_test_instance(extensions)
self.assertEqual(extensions, em.extensions)
def test_name_dispatch_instance_should_build_extension_name_map(self):
extensions = [test_extension, test_extension2]
em = NameDispatchExtensionManager.make_test_instance(extensions)
self.assertEqual(test_extension, em.by_name[test_extension.name])
self.assertEqual(test_extension2, em.by_name[test_extension2.name])
def test_named_dispatch_map_should_invoke_filter_for_extensions(self):
em = NameDispatchExtensionManager.make_test_instance([test_extension,
test_extension2])
func = Mock()
args = ('A',)
kw = {'BIGGER': 'Cheese'}
em.map(['test_extension'], func, *args, **kw)
func.assert_called_once_with(test_extension, *args, **kw)