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217 lines
9.2 KiB
217 lines
9.2 KiB
6 years ago
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from mock import Mock, sentinel
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from stevedore import (ExtensionManager, NamedExtensionManager, HookManager,
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DriverManager, EnabledExtensionManager)
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from stevedore.dispatch import (DispatchExtensionManager,
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NameDispatchExtensionManager)
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from stevedore.extension import Extension
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from stevedore.tests import utils
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test_extension = Extension('test_extension', None, None, None)
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test_extension2 = Extension('another_one', None, None, None)
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mock_entry_point = Mock(module_name='test.extension', attrs=['obj'])
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a_driver = Extension('test_driver', mock_entry_point, sentinel.driver_plugin,
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sentinel.driver_obj)
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# base ExtensionManager
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class TestTestManager(utils.TestCase):
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def test_instance_should_use_supplied_extensions(self):
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extensions = [test_extension, test_extension2]
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em = ExtensionManager.make_test_instance(extensions)
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self.assertEqual(extensions, em.extensions)
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def test_instance_should_have_default_namespace(self):
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em = ExtensionManager.make_test_instance([])
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self.assertEqual(em.namespace, 'TESTING')
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def test_instance_should_use_supplied_namespace(self):
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namespace = 'testing.1.2.3'
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em = ExtensionManager.make_test_instance([], namespace=namespace)
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self.assertEqual(namespace, em.namespace)
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def test_extension_name_should_be_listed(self):
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em = ExtensionManager.make_test_instance([test_extension])
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self.assertIn(test_extension.name, em.names())
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def test_iterator_should_yield_extension(self):
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em = ExtensionManager.make_test_instance([test_extension])
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self.assertEqual(test_extension, next(iter(em)))
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def test_manager_should_allow_name_access(self):
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em = ExtensionManager.make_test_instance([test_extension])
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self.assertEqual(test_extension, em[test_extension.name])
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def test_manager_should_call(self):
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em = ExtensionManager.make_test_instance([test_extension])
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func = Mock()
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em.map(func)
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func.assert_called_once_with(test_extension)
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def test_manager_should_call_all(self):
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em = ExtensionManager.make_test_instance([test_extension2,
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test_extension])
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func = Mock()
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em.map(func)
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func.assert_any_call(test_extension2)
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func.assert_any_call(test_extension)
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def test_manager_return_values(self):
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def mapped(ext, *args, **kwds):
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return ext.name
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em = ExtensionManager.make_test_instance([test_extension2,
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test_extension])
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results = em.map(mapped)
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self.assertEqual(sorted(results), ['another_one', 'test_extension'])
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def test_manager_should_eat_exceptions(self):
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em = ExtensionManager.make_test_instance([test_extension])
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func = Mock(side_effect=RuntimeError('hard coded error'))
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results = em.map(func, 1, 2, a='A', b='B')
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self.assertEqual(results, [])
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def test_manager_should_propagate_exceptions(self):
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em = ExtensionManager.make_test_instance([test_extension],
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propagate_map_exceptions=True)
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self.skipTest('Skipping temporarily')
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func = Mock(side_effect=RuntimeError('hard coded error'))
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em.map(func, 1, 2, a='A', b='B')
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# NamedExtensionManager
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def test_named_manager_should_use_supplied_extensions(self):
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extensions = [test_extension, test_extension2]
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em = NamedExtensionManager.make_test_instance(extensions)
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self.assertEqual(extensions, em.extensions)
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def test_named_manager_should_have_default_namespace(self):
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em = NamedExtensionManager.make_test_instance([])
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self.assertEqual(em.namespace, 'TESTING')
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def test_named_manager_should_use_supplied_namespace(self):
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namespace = 'testing.1.2.3'
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em = NamedExtensionManager.make_test_instance([], namespace=namespace)
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self.assertEqual(namespace, em.namespace)
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def test_named_manager_should_populate_names(self):
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extensions = [test_extension, test_extension2]
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em = NamedExtensionManager.make_test_instance(extensions)
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self.assertEqual(em.names(), ['test_extension', 'another_one'])
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# HookManager
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def test_hook_manager_should_use_supplied_extensions(self):
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extensions = [test_extension, test_extension2]
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em = HookManager.make_test_instance(extensions)
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self.assertEqual(extensions, em.extensions)
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def test_hook_manager_should_be_first_extension_name(self):
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extensions = [test_extension, test_extension2]
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em = HookManager.make_test_instance(extensions)
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# This will raise KeyError if the names don't match
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assert(em[test_extension.name])
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def test_hook_manager_should_have_default_namespace(self):
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em = HookManager.make_test_instance([test_extension])
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self.assertEqual(em.namespace, 'TESTING')
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def test_hook_manager_should_use_supplied_namespace(self):
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namespace = 'testing.1.2.3'
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em = HookManager.make_test_instance([test_extension],
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namespace=namespace)
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self.assertEqual(namespace, em.namespace)
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def test_hook_manager_should_return_named_extensions(self):
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hook1 = Extension('captain', None, None, None)
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hook2 = Extension('captain', None, None, None)
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em = HookManager.make_test_instance([hook1, hook2])
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self.assertEqual([hook1, hook2], em['captain'])
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# DriverManager
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def test_driver_manager_should_use_supplied_extension(self):
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em = DriverManager.make_test_instance(a_driver)
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self.assertEqual([a_driver], em.extensions)
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def test_driver_manager_should_have_default_namespace(self):
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em = DriverManager.make_test_instance(a_driver)
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self.assertEqual(em.namespace, 'TESTING')
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def test_driver_manager_should_use_supplied_namespace(self):
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namespace = 'testing.1.2.3'
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em = DriverManager.make_test_instance(a_driver, namespace=namespace)
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self.assertEqual(namespace, em.namespace)
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def test_instance_should_use_driver_name(self):
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em = DriverManager.make_test_instance(a_driver)
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self.assertEqual(['test_driver'], em.names())
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def test_instance_call(self):
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def invoke(ext, *args, **kwds):
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return ext.name, args, kwds
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em = DriverManager.make_test_instance(a_driver)
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result = em(invoke, 'a', b='C')
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self.assertEqual(result, ('test_driver', ('a',), {'b': 'C'}))
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def test_instance_driver_property(self):
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em = DriverManager.make_test_instance(a_driver)
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self.assertEqual(sentinel.driver_obj, em.driver)
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# EnabledExtensionManager
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def test_enabled_instance_should_use_supplied_extensions(self):
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extensions = [test_extension, test_extension2]
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em = EnabledExtensionManager.make_test_instance(extensions)
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self.assertEqual(extensions, em.extensions)
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# DispatchExtensionManager
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def test_dispatch_instance_should_use_supplied_extensions(self):
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extensions = [test_extension, test_extension2]
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em = DispatchExtensionManager.make_test_instance(extensions)
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self.assertEqual(extensions, em.extensions)
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def test_dispatch_map_should_invoke_filter_for_extensions(self):
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em = DispatchExtensionManager.make_test_instance([test_extension,
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test_extension2])
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filter_func = Mock(return_value=False)
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args = ('A',)
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kw = {'big': 'Cheese'}
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em.map(filter_func, None, *args, **kw)
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filter_func.assert_any_call(test_extension, *args, **kw)
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filter_func.assert_any_call(test_extension2, *args, **kw)
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# NameDispatchExtensionManager
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def test_name_dispatch_instance_should_use_supplied_extensions(self):
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extensions = [test_extension, test_extension2]
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em = NameDispatchExtensionManager.make_test_instance(extensions)
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self.assertEqual(extensions, em.extensions)
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def test_name_dispatch_instance_should_build_extension_name_map(self):
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extensions = [test_extension, test_extension2]
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em = NameDispatchExtensionManager.make_test_instance(extensions)
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self.assertEqual(test_extension, em.by_name[test_extension.name])
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self.assertEqual(test_extension2, em.by_name[test_extension2.name])
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def test_named_dispatch_map_should_invoke_filter_for_extensions(self):
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em = NameDispatchExtensionManager.make_test_instance([test_extension,
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test_extension2])
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func = Mock()
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args = ('A',)
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kw = {'BIGGER': 'Cheese'}
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em.map(['test_extension'], func, *args, **kw)
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func.assert_called_once_with(test_extension, *args, **kw)
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