Skip service api if not supported

The Service api was fixed and supported only in ussri
Don't run it if not supported

see: https://review.opendev.org/#/c/700507/
     https://review.opendev.org/#/c/700517/
     
Change-Id: I84ddb8a075269dc475fb56e0fc5ecabd28bba1a8

mistral_tempest_tests/config.py

@@ -15,7 +15,18 @@
 
 from oslo_config import cfg
 
-service_option = cfg.BoolOpt('mistral',
-                             default=True,
-                             help="Whether or not Mistral is expected to be"
-                                  "available")
+ServiceAvailableGroup = [cfg.BoolOpt('mistral',
+                                     default=True,
+                                     help="Whether or not Mistral is expected"
+                                          " to be available")]
+
+service_available_group = cfg.OptGroup(name="service_available",
+                                       title="Available OpenStack Services")
+
+mistral_api_group = cfg.OptGroup(name="mistral_api",
+                                 title="Mistral Api Service Options")
+
+MistralApiGroup = [cfg.BoolOpt("service_api_supported",
+                               default=False,
+                               help="Whether or not services api "
+                                    "is available")]

mistral_tempest_tests/plugin.py

@@ -16,6 +16,7 @@
 
 import os
 
+from tempest import config
 from tempest.test_discover import plugins
 
 from mistral_tempest_tests import config as mistral_config
@@ -30,8 +31,17 @@ class MistralTempestPlugin(plugins.TempestPlugin):
         return full_test_dir, base_path
 
     def register_opts(self, conf):
-        conf.register_opt(mistral_config.service_option,
-                          group='service_available')
+        config.register_opt_group(conf,
+                                  mistral_config.service_available_group,
+                                  mistral_config.ServiceAvailableGroup)
+        config.register_opt_group(conf,
+                                  mistral_config.mistral_api_group,
+                                  mistral_config.MistralApiGroup)
 
     def get_opt_lists(self):
-        return [('service_available', [mistral_config.service_option])]
+        return [
+            (mistral_config.service_available_group.name,
+             mistral_config.ServiceAvailableGroup),
+            (mistral_config.mistral_api_group.name,
+             mistral_config.MistralApiGroup),
+        ]

mistral_tempest_tests/tests/api/v2/test_services.py

@@ -12,10 +12,15 @@
 #  License for the specific language governing permissions and limitations
 #  under the License.
 
+import testtools
+
+from tempest import config
 from tempest.lib import decorators
 
 from mistral_tempest_tests.tests import base
 
+CONF = config.CONF
+
 
 class ServicesTestsV2(base.TestCase):
 
@@ -23,6 +28,8 @@ class ServicesTestsV2(base.TestCase):
 
     @decorators.attr(type='sanity')
     @decorators.idempotent_id('f4359ad2-9109-4305-a00a-77679878f7f9')
+    @testtools.skipUnless(CONF.mistral_api.service_api_supported,
+                          'Service api is not supported')
     def test_get_services_list(self):
         resp, body = self.client.get_list_obj('services')