Allow to run multiple kind of tempest tests

While I consider to add a scenario test to be executed on tempest,
base_path in tempest/plugin.py is fixed to api directory.
So api test should be put under tests/tempest.

Related Change-Id: Ieb710181c1e496742e1e019a6238e5e0bd922971

(cherry picked from commit f9725801d8)
Change-Id: I9923775806b095455ed3723e71410287bdf6cb1e

neutron_dynamic_routing/tests/contrib/gate_hook.sh

@@ -26,8 +26,4 @@ then
 
     # Make the workspace owned by the stack user
     sudo chown -R $STACK_USER:$STACK_USER $BASE
-
-else
-    echo "Unrecognized environment $VENV".
-    exit 1
 fi

neutron_dynamic_routing/tests/tempest/api/test_bgp_speaker_extensions_negative.py

@@ -17,7 +17,7 @@ import netaddr
 from tempest.lib import exceptions as lib_exc
 from tempest import test
 
-from neutron_dynamic_routing.tests.api import test_bgp_speaker_extensions as test_base  # noqa
+from neutron_dynamic_routing.tests.tempest.api import test_bgp_speaker_extensions as test_base  # noqa
 
 
 class BgpSpeakerTestJSONNegative(test_base.BgpSpeakerTestJSONBase):

neutron_dynamic_routing/tests/tempest/plugin.py

@@ -23,7 +23,7 @@ class NeutronDynamicRoutingTempestPlugin(plugins.TempestPlugin):
     def load_tests(self):
         base_path = os.path.split(os.path.dirname(
             os.path.abspath(neutron_dynamic_routing.__file__)))[0]
-        test_dir = "neutron_dynamic_routing/tests/api"
+        test_dir = "neutron_dynamic_routing/tests/tempest"
         full_test_dir = os.path.join(base_path, test_dir)
         return full_test_dir, base_path