old_contents: #    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.
  
  
  import StringIO
  import sys
  
  import glance.cmd.api
  import glance.common.config
  from glance.common import exception as exc
  import glance.common.wsgi
  from glance.tests import utils as test_utils
  
  
  class TestGlanceApiCmd(test_utils.BaseTestCase):
      def _do_nothing(self, *args, **kwargs):
          pass
  
      def _raise(self, exc):
          def fake(*args, **kwargs):
              raise exc
          return fake
  
      def setUp(self):
          super(TestGlanceApiCmd, self).setUp()
          sys.argv = ['glance-api']
          self.stderr = StringIO.StringIO()
          sys.stderr = self.stderr
  
          self.stubs.Set(glance.common.config, 'load_paste_app',
                         self._do_nothing)
          self.stubs.Set(glance.common.wsgi.Server, 'start',
                         self._do_nothing)
          self.stubs.Set(glance.common.wsgi.Server, 'wait',
                         self._do_nothing)
  
      def tearDown(self):
          sys.stderr = sys.__stderr__
          super(TestGlanceApiCmd, self).tearDown()
  
      def test_supported_default_store(self):
          self.config(default_store='file')
          glance.cmd.api.main()
  
      def test_unsupported_default_store(self):
          self.config(default_store='shouldnotexist')
          exit = self.assertRaises(SystemExit, glance.cmd.api.main)
          self.assertEquals(exit.code, 1)
  
      def test_worker_creation_failure(self):
          failure = exc.WorkerCreationFailure(reason='test')
          self.stubs.Set(glance.common.wsgi.Server, 'start',
                         self._raise(failure))
          exit = self.assertRaises(SystemExit, glance.cmd.api.main)
          self.assertEquals(exit.code, 2)
  
new_contents: #    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.
  
  
  import StringIO
  import sys
  
  import glance.cmd.api
  import glance.common.config
  from glance.common import exception as exc
  import glance.common.wsgi
  from glance.tests import utils as test_utils
  
  
  class TestGlanceApiCmd(test_utils.BaseTestCase):
  
      __argv_backup = None
  
      def _do_nothing(self, *args, **kwargs):
          pass
  
      def _raise(self, exc):
          def fake(*args, **kwargs):
              raise exc
          return fake
  
      def setUp(self):
          super(TestGlanceApiCmd, self).setUp()
          self.__argv_backup = sys.argv
          sys.argv = ['glance-api']
          self.stderr = StringIO.StringIO()
          sys.stderr = self.stderr
  
          self.stubs.Set(glance.common.config, 'load_paste_app',
                         self._do_nothing)
          self.stubs.Set(glance.common.wsgi.Server, 'start',
                         self._do_nothing)
          self.stubs.Set(glance.common.wsgi.Server, 'wait',
                         self._do_nothing)
  
      def tearDown(self):
          sys.stderr = sys.__stderr__
          sys.argv = self.__argv_backup
          super(TestGlanceApiCmd, self).tearDown()
  
      def test_supported_default_store(self):
          self.config(default_store='file')
          glance.cmd.api.main()
  
      def test_unsupported_default_store(self):
          self.config(default_store='shouldnotexist')
          exit = self.assertRaises(SystemExit, glance.cmd.api.main)
          self.assertEquals(exit.code, 1)
  
      def test_worker_creation_failure(self):
          failure = exc.WorkerCreationFailure(reason='test')
          self.stubs.Set(glance.common.wsgi.Server, 'start',
                         self._raise(failure))
          exit = self.assertRaises(SystemExit, glance.cmd.api.main)
          self.assertEquals(exit.code, 2)
  
subject: test failure induced by reading system config file