Move common libs to libs/common

libs/common/stevedore/tests/test_hook.py

@@ -0,0 +1,55 @@
+#  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'