text: # Copyright (c) 2013 Mirantis Inc.
  #
  # 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 mock
  from oslotest import base
  
  from sahara import context
  from sahara.db import api as db_api
  from sahara import main
  from sahara.utils import rpc
  
  
  class SaharaTestCase(base.BaseTestCase):
  
      def setUp(self):
          super(SaharaTestCase, self).setUp()
          self.setup_context()
          rpc.setup('all-in-one')
  
      def setup_context(self, username="test_user", tenant_id="tenant_1",
                        auth_token="test_auth_token", tenant_name='test_tenant',
                        service_catalog=None, **kwargs):
          self.addCleanup(context.set_ctx,
                          context.ctx() if context.has_ctx() else None)
  
          context.set_ctx(context.Context(
              username=username, tenant_id=tenant_id,
              auth_token=auth_token, service_catalog=service_catalog or {},
              tenant_name=tenant_name, **kwargs))
  
      def override_config(self, name, override, group=None):
          main.CONF.set_override(name, override, group)
          self.addCleanup(main.CONF.clear_override, name, group)
  
  
  class SaharaWithDbTestCase(SaharaTestCase):
      def setUp(self):
          super(SaharaWithDbTestCase, self).setUp()
  
          self.override_config('connection', "sqlite://", group='database')
          db_api.setup_db()
          self.addCleanup(db_api.drop_db)
  
  
  class _ConsecutiveThreadGroup(context.ThreadGroup):
      def __init__(self, _thread_pool_size=1000):
          pass
  
      def spawn(self, thread_description, func, *args, **kwargs):
          func(*args, **kwargs)
  
      def __enter__(self):
          return self
  
      def __exit__(self, *ex):
          pass
  
  
  def mock_thread_group(func):
      return mock.patch('sahara.context.ThreadGroup',
                        new=_ConsecutiveThreadGroup)(func)
  