Refactored Neutron tempest plugin directory structure

* switch from neutron.tests.tempest to neutron_tempest_plugin
* Cleaned up README.rst and setup.cfg
* Use neutron_tempest_plugin as a tempest plugin package
* Fixed gitreview
* Keeping flake8 Ignores in tox.ini as tempest plugin is
  imported from neutron codebase.

Change-Id: I42d389836e72813fdeebc797a577f4a8ac2ee603
diff --git a/neutron_tempest_plugin/api/base_routers.py b/neutron_tempest_plugin/api/base_routers.py
new file mode 100644
index 0000000..c8d3783
--- /dev/null
+++ b/neutron_tempest_plugin/api/base_routers.py
@@ -0,0 +1,45 @@
+# Copyright 2013 OpenStack Foundation
+# All Rights Reserved.
+#
+#    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 neutron_tempest_plugin.api import base
+
+
+class BaseRouterTest(base.BaseAdminNetworkTest):
+    # NOTE(salv-orlando): This class inherits from BaseAdminNetworkTest
+    # as some router operations, such as enabling or disabling SNAT
+    # require admin credentials by default
+
+    def _cleanup_router(self, router):
+        self.delete_router(router)
+        self.routers.remove(router)
+
+    def _create_router(self, name, admin_state_up=False,
+                       external_network_id=None, enable_snat=None):
+        # associate a cleanup with created routers to avoid quota limits
+        router = self.create_router(name, admin_state_up,
+                                    external_network_id, enable_snat)
+        self.addCleanup(self._cleanup_router, router)
+        return router
+
+    def _delete_router(self, router_id, network_client=None):
+        client = network_client or self.client
+        client.delete_router(router_id)
+        # Asserting that the router is not found in the list
+        # after deletion
+        list_body = self.client.list_routers()
+        routers_list = list()
+        for router in list_body['routers']:
+            routers_list.append(router['id'])
+        self.assertNotIn(router_id, routers_list)