Added skipchecks, updated region domain update setup

Skipcheck implemented for when a test uses multiple
ranger regions to execute a test and tempest did
not provide an additional region to complete these
tests with. Updated region domain update statement
in setup steps to ensure that ranger-tempest-plugin
does not attempt to update a secondary site when
it is not available

Change-Id: Ia19ef442107d7cc66d1f254860606245bf6c127f

flake8rc

@@ -1,5 +1,5 @@
 [flake8]
-ignore = E125,E123,E129,H903
+ignore = E125,E123,E129,H903,H306
 show-source = False
 exclude =
     .git,

ranger_tempest_plugin/tests/api/base.py

@@ -47,7 +47,8 @@ class BaseOrmTest(test.BaseTestCase):
 
         for region in regions:
             if region['id'] is CONF.identity.region or \
-                region['id'] is CONF.ranger.alt_region:
+                (region['id'] is CONF.ranger.alt_region and
+                 CONF.ranger.alt_region_available is True):
                 cls.addClassResourceCleanup(cls.region_client.update_region,
                                             region['id'],
                                             **region)

ranger_tempest_plugin/tests/api/test_flavors.py

@@ -20,14 +20,13 @@ from oslo_concurrency import lockutils
 from ranger_tempest_plugin import data_utils as orm_data_utils
 from ranger_tempest_plugin.tests.api import fms_base
 from tempest import config
-
 from tempest.lib import decorators
 from tempest.lib import exceptions
-
 from tempest.lib.common.utils import data_utils
+import testtools
+
 
 CONF = config.CONF
-
 PREFIX = 'ranger'
 SYNC = lockutils.synchronized_with_prefix(PREFIX)
 
@@ -500,6 +499,8 @@ class TestTempestFms(fms_base.FmsBaseOrmTest):
         self.assertEqual(flavor_details["disk"], disk)
 
     @SYNC('region')
+    @testtools.skipUnless(CONF.ranger.alt_region_available,
+                          'Alt region not provided, skipping this test')
     @decorators.idempotent_id('997ca03c-4176-4632-a0c9-7e943b03306c')
     def test_create_flavor_with_region_group(self):
         # create region group
@@ -515,11 +516,10 @@ class TestTempestFms(fms_base.FmsBaseOrmTest):
         self.assertEqual(flavor['regions'][0]['name'], CONF.identity.region)
 
     @SYNC('region')
+    @testtools.skipUnless(CONF.ranger.alt_region_available,
+                          'Alt region not provided, skipping this test')
     @decorators.idempotent_id('ea2a618e-bd53-460b-bde5-01ea20b417c9')
     def test_create_flavor_with_two_regions(self):
-        if not self.region_alt:
-            raise exceptions.InvalidConfiguration(
-                'Provide region_alt in ranger block in configuration file')
         post_body = self._get_flavor_params()
         post_body['regions'].append(
             {'name': self.region_alt}
@@ -531,11 +531,10 @@ class TestTempestFms(fms_base.FmsBaseOrmTest):
         self.assertEqual(len(flavor['regions']), 2)
 
     @SYNC('region')
+    @testtools.skipUnless(CONF.ranger.alt_region_available,
+                          'Alt region not provided, skipping this test')
     @decorators.idempotent_id('06c81b29-85b6-4edf-ab89-3877c49e23bc')
     def test_create_flavor_with_group_region(self):
-        if not self.region_alt:
-            raise exceptions.InvalidConfiguration(
-                'Provide region_alt in ranger block in configuration file')
         group_id = self._create_region_group()
         post_body = self._get_flavor_params()
         post_body['regions'] = [