Add RBAC tests for namespace_tags_client.

Adds RBAC tests for all the endpoints in namespace_tags_client
except for

  1) delete_namespace_tag
  2) delete_namespace_tags

because Glance does not currently do policy enforcement for them [0]
(the policy actions are even missing from the policy.json).

This patch also removes invalid occurrences of CONF and LOG
throughout Patrole image tests, and renames a few incorrectly
named image test files.

Partially-Implements blueprint: initial-tests-image

[0] https://github.com/openstack/glance/blob/master/etc/policy.json

Change-Id: I15be44d50886b8f500d640b67563504287767d91
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_objects_rbac.py b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_objects_rbac.py
index e7c7199..1c937b0 100644
--- a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_objects_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_objects_rbac.py
@@ -13,7 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
@@ -21,8 +20,6 @@
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.image import rbac_base
 
-CONF = config.CONF
-
 
 class ImageNamespacesObjectsRbacTest(rbac_base.BaseV2ImageRbacTest):
 
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_property_rbac.py b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_property_rbac.py
index 946837e..0d194b7 100644
--- a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_property_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_property_rbac.py
@@ -13,15 +13,12 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.image import rbac_base
 
-CONF = config.CONF
-
 
 class NamespacesPropertyRbacTest(rbac_base.BaseV2ImageRbacTest):
 
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_rbac.py b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_rbac.py
index 1010796..fb4a599 100644
--- a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_rbac.py
@@ -13,7 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
@@ -21,8 +20,6 @@
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.image import rbac_base
 
-CONF = config.CONF
-
 
 class ImageNamespacesRbacTest(rbac_base.BaseV2ImageRbacTest):
 
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_tags_rbac.py b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_tags_rbac.py
new file mode 100644
index 0000000..cfd544c
--- /dev/null
+++ b/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_tags_rbac.py
@@ -0,0 +1,112 @@
+# Copyright 2017 AT&T Corporation.
+# 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 tempest.lib.common.utils import data_utils
+from tempest.lib.common.utils import test_utils
+from tempest.lib import decorators
+
+from patrole_tempest_plugin import rbac_rule_validation
+from patrole_tempest_plugin.tests.api.image import rbac_base as base
+
+
+class NamespaceTagsRbacTest(base.BaseV2ImageRbacTest):
+    """RBAC tests for namespace_tags_client.
+
+    Performs RBAC testing for the endpoints in namespace_tags_client, except
+    for
+
+        1) delete_namespace_tag
+        2) delete_namespace_tags
+
+    because Glance does not currently do policy enforcement for them.
+    """
+
+    @classmethod
+    def setup_clients(cls):
+        super(NamespaceTagsRbacTest, cls).setup_clients()
+        cls.client = cls.namespace_tags_client
+
+    @classmethod
+    def resource_setup(cls):
+        super(NamespaceTagsRbacTest, cls).resource_setup()
+        cls.namespace = cls.namespaces_client.create_namespace(
+            namespace=data_utils.rand_name('namespace'))['namespace']
+
+    @classmethod
+    def resource_cleanup(cls):
+        cls.namespaces_client.delete_namespace(cls.namespace)
+        super(NamespaceTagsRbacTest, cls).resource_cleanup()
+
+    def _create_namespace_tag(self, multiple=False):
+        tag_count = 2 if multiple else 1
+        namespace_tag_names = []
+
+        for i in range(tag_count):
+            tag_name = data_utils.rand_name('tag')
+            namespace_tag_names.append({'name': tag_name})
+
+        if multiple:
+            namespace_tags = self.client.create_namespace_tags(
+                self.namespace, tags=namespace_tag_names)['tags']
+        else:
+            namespace_tags = self.client.create_namespace_tag(
+                self.namespace, namespace_tag_names[0]['name'])
+
+        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
+                        self.client.delete_namespace_tags,
+                        self.namespace)
+
+        return [nt['name'] for nt in namespace_tags] if multiple \
+            else namespace_tags['name']
+
+    @decorators.idempotent_id('50bedccb-9d0b-4138-8d95-31a89250edf6')
+    @rbac_rule_validation.action(service="glance",
+                                 rule="add_metadef_tag")
+    def test_create_namespace_tag(self):
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self._create_namespace_tag()
+
+    @decorators.idempotent_id('4acf70cc-05da-4b1e-87b2-d5e4475164e7')
+    @rbac_rule_validation.action(service="glance",
+                                 rule="get_metadef_tag")
+    def test_show_namespace_tag(self):
+        tag_name = self._create_namespace_tag()
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.client.show_namespace_tag(self.namespace, tag_name)
+
+    @decorators.idempotent_id('01593828-3edb-461e-8abc-8fdeb3927e37')
+    @rbac_rule_validation.action(service="glance",
+                                 rule="modify_metadef_tag")
+    def test_update_namespace_tag(self):
+        tag_name = self._create_namespace_tag()
+        updated_tag_name = data_utils.rand_name('tag')
+
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.client.update_namespace_tag(self.namespace, tag_name,
+                                         name=updated_tag_name)
+
+    @decorators.idempotent_id('20ffaf76-ebdc-4267-a1ad-194346f5cc91')
+    @rbac_rule_validation.action(service="glance",
+                                 rule="add_metadef_tags")
+    def test_create_namespace_tags(self):
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self._create_namespace_tag(multiple=True)
+
+    @decorators.idempotent_id('d37c1501-e787-449d-89b3-754a942a459a')
+    @rbac_rule_validation.action(service="glance",
+                                 rule="get_metadef_tags")
+    def test_list_namespace_tags(self):
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.client.list_namespace_tags(self.namespace)
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_resource_type.py b/patrole_tempest_plugin/tests/api/image/v2/test_image_resource_types_rbac.py
similarity index 94%
rename from patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_resource_type.py
rename to patrole_tempest_plugin/tests/api/image/v2/test_image_resource_types_rbac.py
index 87d88c0..94c704f 100644
--- a/patrole_tempest_plugin/tests/api/image/v2/test_image_namespace_resource_type.py
+++ b/patrole_tempest_plugin/tests/api/image/v2/test_image_resource_types_rbac.py
@@ -13,7 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
@@ -21,10 +20,8 @@
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.image import rbac_base
 
-CONF = config.CONF
 
-
-class ImageNamespacesResourceTypeRbacTest(rbac_base.BaseV2ImageRbacTest):
+class ImageResourceTypesRbacTest(rbac_base.BaseV2ImageRbacTest):
 
     @rbac_rule_validation.action(service="glance",
                                  rule="list_metadef_resource_types")
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_images_member_rbac.py b/patrole_tempest_plugin/tests/api/image/v2/test_images_member_rbac.py
index 16d27f3..07d4015 100644
--- a/patrole_tempest_plugin/tests/api/image/v2/test_images_member_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/v2/test_images_member_rbac.py
@@ -13,16 +13,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from oslo_log import log as logging
-from tempest import config
 from tempest.lib import decorators
 
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.image import rbac_base as base
 
-CONF = config.CONF
-LOG = logging.getLogger(__name__)
-
 
 class ImagesMemberRbacTest(base.BaseV2ImageRbacTest):
 
diff --git a/patrole_tempest_plugin/tests/api/image/v2/test_images_rbac.py b/patrole_tempest_plugin/tests/api/image/v2/test_images_rbac.py
index 456b6ec..fa492bb 100644
--- a/patrole_tempest_plugin/tests/api/image/v2/test_images_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/v2/test_images_rbac.py
@@ -15,17 +15,12 @@
 
 from six import moves
 
-from oslo_log import log as logging
-from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 from patrole_tempest_plugin import rbac_rule_validation
 from patrole_tempest_plugin.tests.api.image import rbac_base
 
-CONF = config.CONF
-LOG = logging.getLogger(__name__)
-
 
 class BasicOperationsImagesRbacTest(rbac_base.BaseV2ImageRbacTest):