Adopt to the new endpoint url

Recent update in devstack plugin introduced additional path in endpoint
url.

Depends-on: https://review.opendev.org/936110
Change-Id: Ifd0642cae86c1cab7c7faff36b0205e9c5f3a1be

.zuul.yaml

@@ -7,8 +7,6 @@
       - opendev.org/openstack/zaqar
       - opendev.org/openstack/zaqar-tempest-plugin
     vars:
-      devstack_localrc:
-        ZAQAR_SERVICE_HOST: localhost
       devstack_plugins:
         zaqar: https://opendev.org/openstack/zaqar
       devstack_services:
@@ -27,7 +25,7 @@
       # The failing job can be checked by removing this filter.
       tox_extra_args: -vv -- tests.functional.queues.v2.test_health
       tox_environment:
-        ZAQAR_SERVICE_HOST: localhost
+        ZAQAR_ENDPOINT: "http://localhost/messaging"
 
 - project:
     templates:

tox.ini

@@ -37,6 +37,7 @@ setenv =
   ZAQARCLIENT_TEST_FUNCTIONAL = 1
 passenv =
   ZAQAR_SERVICE_HOST
+  ZAQAR_ENDPOINT
 
 [testenv:venv]
 commands = {posargs}

zaqarclient/tests/queues/base.py

@@ -24,12 +24,15 @@ from zaqarclient.tests.transport import dummy
 
 
 MY_IP = os.environ.get('ZAQAR_SERVICE_HOST', netutils.get_my_ipv4())
+ZAQAR_ENDPOINT = os.environ.get(
+    'ZAQAR_ENDPOINT',
+    'http://%s:8888' % netutils.escape_ipv6(MY_IP))
 
 
 class QueuesTestBase(base.TestBase):
 
     transport_cls = dummy.DummyTransport
-    url = 'http://%s:8888' % netutils.escape_ipv6(MY_IP)
+    url = ZAQAR_ENDPOINT
     version = 1
 
     def setUp(self):