Merge "refactor: Break up RbacMalformedException into discrete exceptions"
diff --git a/patrole_tempest_plugin/rbac_exceptions.py b/patrole_tempest_plugin/rbac_exceptions.py
index 6bdd7df..ad697b0 100644
--- a/patrole_tempest_plugin/rbac_exceptions.py
+++ b/patrole_tempest_plugin/rbac_exceptions.py
@@ -20,16 +20,34 @@
     message = "An unknown RBAC exception occurred"
 
 
-class RbacMalformedResponse(BasePatroleException):
-    message = ("The response body is missing the expected %(attribute)s due "
-               "to policy enforcement failure.")
+class BasePatroleResponseBodyException(BasePatroleException):
+    message = "Response body incomplete due to RBAC authorization failure"
 
-    def __init__(self, empty=False, **kwargs):
-        if empty:
-            self.message = ("The response body is empty due to policy "
-                            "enforcement failure.")
-            kwargs = {}
-        super(RbacMalformedResponse, self).__init__(**kwargs)
+
+class RbacMissingAttributeResponseBody(BasePatroleResponseBodyException):
+    """Raised when a list or show action is missing an attribute following
+    RBAC authorization failure.
+    """
+    message = ("The response body is missing the expected %(attribute)s due "
+               "to policy enforcement failure")
+
+
+class RbacPartialResponseBody(BasePatroleResponseBodyException):
+    """Raised when a list action only returns a subset of the available
+    resources.
+
+    For example, admin can return more resources than member for a list action.
+    """
+    message = ("The response body only lists a subset of the available "
+               "resources due to partial policy enforcement failure. Response "
+               "body: %(body)s")
+
+
+class RbacEmptyResponseBody(BasePatroleResponseBodyException):
+    """Raised when a list or show action is empty following RBAC authorization
+    failure.
+    """
+    message = ("The response body is empty due to policy enforcement failure.")
 
 
 class RbacResourceSetupFailed(BasePatroleException):
diff --git a/patrole_tempest_plugin/rbac_rule_validation.py b/patrole_tempest_plugin/rbac_rule_validation.py
index 575e2c3..9ca437b 100644
--- a/patrole_tempest_plugin/rbac_rule_validation.py
+++ b/patrole_tempest_plugin/rbac_rule_validation.py
@@ -198,7 +198,8 @@
                     test_status = ('Error, %s' % (msg))
                     LOG.error(msg)
             except (expected_exception,
-                    rbac_exceptions.RbacMalformedResponse) as actual_exception:
+                    rbac_exceptions.BasePatroleResponseBodyException) \
+                    as actual_exception:
                 caught_exception = actual_exception
                 test_status = 'Denied'
 
diff --git a/patrole_tempest_plugin/tests/api/compute/test_flavor_access_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_flavor_access_rbac.py
index 317c1ad..8d4d70f 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_flavor_access_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_flavor_access_rbac.py
@@ -50,7 +50,7 @@
 
         expected_attr = 'os-flavor-access:is_public'
         if expected_attr not in body:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -71,7 +71,7 @@
         # If the `expected_attr` was not found in any flavor, then policy
         # enforcement failed.
         if not public_flavors:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @decorators.idempotent_id('39cb5c8f-9990-436f-9282-fc76a41d9bac')
diff --git a/patrole_tempest_plugin/tests/api/compute/test_flavor_rxtx_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_flavor_rxtx_rbac.py
index 0748e67..cbb2e19 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_flavor_rxtx_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_flavor_rxtx_rbac.py
@@ -45,7 +45,7 @@
         with self.rbac_utils.override_role(self):
             result = self.flavors_client.list_flavors(detail=True)['flavors']
         if 'rxtx_factor' not in result[0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='rxtx_factor')
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -59,5 +59,5 @@
             result = self.flavors_client.show_flavor(
                 CONF.compute.flavor_ref)['flavor']
         if 'rxtx_factor' not in result:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='rxtx_factor')
diff --git a/patrole_tempest_plugin/tests/api/compute/test_images_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_images_rbac.py
index f6c1b67..e16222c 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_images_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_images_rbac.py
@@ -294,7 +294,7 @@
 
         expected_attr = 'OS-EXT-IMG-SIZE:size'
         if expected_attr not in body:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -310,5 +310,5 @@
 
         expected_attr = 'OS-EXT-IMG-SIZE:size'
         if expected_attr not in body[0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_actions_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_actions_rbac.py
index a64bd20..0ff6ebe 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_actions_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_actions_rbac.py
@@ -403,5 +403,5 @@
             server = self.servers_client.show_server(self.server_id)['server']
 
         if 'host_status' not in server:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='host_status')
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_misc_policy_actions_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_misc_policy_actions_rbac.py
index 88bea25..64e1300 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_misc_policy_actions_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_misc_policy_actions_rbac.py
@@ -143,7 +143,7 @@
         expected_attr = 'config_drive'
         # If the first server contains "config_drive", then all the others do.
         if expected_attr not in body[0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -159,7 +159,7 @@
             body = self.servers_client.show_server(self.server['id'])['server']
         expected_attr = 'config_drive'
         if expected_attr not in body:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @utils.requires_ext(extension='os-deferred-delete', service='compute')
@@ -188,7 +188,7 @@
             body = self.servers_client.list_servers(detail=True)['servers']
         # If the first server contains `expected_attr`, then all the others do.
         if expected_attr not in body[0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -205,7 +205,7 @@
         with self.rbac_utils.override_role(self):
             body = self.servers_client.show_server(self.server['id'])['server']
         if expected_attr not in body:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -229,7 +229,7 @@
         for attr in ('host', 'instance_name'):
             whole_attr = 'OS-EXT-SRV-ATTR:%s' % attr
             if whole_attr not in body[0]:
-                raise rbac_exceptions.RbacMalformedResponse(
+                raise rbac_exceptions.RbacMissingAttributeResponseBody(
                     attribute=whole_attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -253,7 +253,7 @@
         for attr in ('host', 'instance_name'):
             whole_attr = 'OS-EXT-SRV-ATTR:%s' % attr
             if whole_attr not in body:
-                raise rbac_exceptions.RbacMalformedResponse(
+                raise rbac_exceptions.RbacMissingAttributeResponseBody(
                     attribute=whole_attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -272,7 +272,7 @@
                           'OS-EXT-STS:power_state')
         for attr in expected_attrs:
             if attr not in body[0]:
-                raise rbac_exceptions.RbacMalformedResponse(
+                raise rbac_exceptions.RbacMissingAttributeResponseBody(
                     attribute=attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -291,7 +291,7 @@
                           'OS-EXT-STS:power_state')
         for attr in expected_attrs:
             if attr not in body:
-                raise rbac_exceptions.RbacMalformedResponse(
+                raise rbac_exceptions.RbacMissingAttributeResponseBody(
                     attribute=attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -310,7 +310,7 @@
         with self.rbac_utils.override_role(self):
             body = self.servers_client.list_servers(detail=True)['servers']
         if expected_attr not in body[0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -329,7 +329,7 @@
         with self.rbac_utils.override_role(self):
             body = self.servers_client.show_server(self.server['id'])['server']
         if expected_attr not in body:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @utils.requires_ext(extension='os-instance-actions', service='compute')
@@ -360,12 +360,12 @@
                 self.server['id'], request_id)['instanceAction']
 
         if 'events' not in instance_action:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='events')
         # Microversion 2.51+ returns 'events' always, but not 'traceback'. If
         # 'traceback' is also present then policy enforcement passed.
         if 'traceback' not in instance_action['events'][0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='events.traceback')
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -379,7 +379,7 @@
             result = self.servers_client.show_server(self.server['id'])[
                 'server']
         if 'key_name' not in result:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='key_name')
 
     @testtools.skipIf(CONF.policy_feature_enabled.removed_nova_policies_stein,
@@ -392,7 +392,7 @@
         with self.rbac_utils.override_role(self):
             result = self.servers_client.list_servers(detail=True)['servers']
         if 'key_name' not in result[0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='key_name')
 
     @rbac_rule_validation.action(
@@ -514,7 +514,7 @@
             body = self.servers_client.show_server(self.server['id'])['server']
         for expected_attr in expected_attrs:
             if expected_attr not in body:
-                raise rbac_exceptions.RbacMalformedResponse(
+                raise rbac_exceptions.RbacMissingAttributeResponseBody(
                     attribute=expected_attr)
 
     @utils.requires_ext(extension='os-simple-tenant-usage', service='compute')
diff --git a/patrole_tempest_plugin/tests/api/network/test_network_segments_rbac.py b/patrole_tempest_plugin/tests/api/network/test_network_segments_rbac.py
index c985111..b449970 100644
--- a/patrole_tempest_plugin/tests/api/network/test_network_segments_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_network_segments_rbac.py
@@ -118,4 +118,4 @@
             LOG.info("NotFound or Forbidden exception are not thrown when "
                      "role doesn't have access to the endpoint. Instead, "
                      "the response will have an empty network body.")
-            raise rbac_exceptions.RbacMalformedResponse(empty=True)
+            raise rbac_exceptions.RbacEmptyResponseBody()
diff --git a/patrole_tempest_plugin/tests/api/network/test_networks_rbac.py b/patrole_tempest_plugin/tests/api/network/test_networks_rbac.py
index 96ba378..b39489a 100644
--- a/patrole_tempest_plugin/tests/api/network/test_networks_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_networks_rbac.py
@@ -363,7 +363,7 @@
                 self.network['id'], **kwargs)['network']
 
         if len(retrieved_network) == 0:
-            raise rbac_exceptions.RbacMalformedResponse(empty=True)
+            raise rbac_exceptions.RbacEmptyResponseBody()
 
     @utils.requires_ext(extension='provider', service='network')
     @rbac_rule_validation.action(service="neutron",
@@ -384,7 +384,7 @@
                 self.network['id'], **kwargs)['network']
 
         if len(retrieved_network) == 0:
-            raise rbac_exceptions.RbacMalformedResponse(empty=True)
+            raise rbac_exceptions.RbacEmptyResponseBody()
 
     @utils.requires_ext(extension='provider', service='network')
     @rbac_rule_validation.action(
@@ -406,7 +406,7 @@
                 self.network['id'], **kwargs)['network']
 
         if len(retrieved_network) == 0:
-            raise rbac_exceptions.RbacMalformedResponse(empty=True)
+            raise rbac_exceptions.RbacEmptyResponseBody()
 
     @utils.requires_ext(extension='provider', service='network')
     @rbac_rule_validation.action(
@@ -428,7 +428,7 @@
                 self.network['id'], **kwargs)['network']
 
         if len(retrieved_network) == 0:
-            raise rbac_exceptions.RbacMalformedResponse(empty=True)
+            raise rbac_exceptions.RbacEmptyResponseBody()
 
     @rbac_rule_validation.action(service="neutron",
                                  rules=["get_network", "delete_network"],
diff --git a/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py b/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
index b65bd73..dd3537f 100644
--- a/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
@@ -183,7 +183,7 @@
 
         # Rather than throwing a 403, the field is not present, so raise exc.
         if fields[0] not in retrieved_port:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='binding:vif_type')
 
     @utils.requires_ext(extension='binding', service='network')
@@ -203,7 +203,7 @@
 
         # Rather than throwing a 403, the field is not present, so raise exc.
         if fields[0] not in retrieved_port:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='binding:vif_details')
 
     @utils.requires_ext(extension='binding', service='network')
@@ -226,7 +226,7 @@
 
         # Rather than throwing a 403, the field is not present, so raise exc.
         if fields[0] not in retrieved_port:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='binding:host_id')
 
     @utils.requires_ext(extension='binding', service='network')
@@ -250,7 +250,7 @@
 
         # Rather than throwing a 403, the field is not present, so raise exc.
         if fields[0] not in retrieved_port:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='binding:profile')
 
     @rbac_rule_validation.action(service="neutron",
diff --git a/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py b/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
index f850a3e..399ad47 100644
--- a/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
@@ -179,7 +179,7 @@
 
         # Rather than throwing a 403, the field is not present, so raise exc.
         if 'distributed' not in retrieved_fields:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='distributed')
 
     @decorators.idempotent_id('defc502c-4159-4824-b4d9-3cdcc39015b2')
@@ -201,7 +201,7 @@
 
         # Rather than throwing a 403, the field is not present, so raise exc.
         if 'ha' not in retrieved_fields:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='ha')
 
     @rbac_rule_validation.action(service="neutron",
diff --git a/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py b/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
index 9112bf6..e9fa018 100644
--- a/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
@@ -126,7 +126,7 @@
 
         # Neutron may return an empty list if access is denied.
         if not security_groups['security_groups']:
-            raise rbac_exceptions.RbacMalformedResponse(empty=True)
+            raise rbac_exceptions.RbacEmptyResponseBody()
 
     @rbac_rule_validation.action(service="neutron",
                                  rules=["create_security_group_rule"])
@@ -170,4 +170,4 @@
 
         # Neutron may return an empty list if access is denied.
         if not security_rules['security_group_rules']:
-            raise rbac_exceptions.RbacMalformedResponse(empty=True)
+            raise rbac_exceptions.RbacEmptyResponseBody()
diff --git a/patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py b/patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py
index 9a5ebe4..8fe157a 100644
--- a/patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py
@@ -73,7 +73,7 @@
 
         # Neutron may return an empty list if access is denied.
         if not subnets['subnets']:
-            raise rbac_exceptions.RbacMalformedResponse(empty=True)
+            raise rbac_exceptions.RbacEmptyResponseBody()
 
     @decorators.idempotent_id('f36cd821-dd22-4bd0-b43d-110fc4b553eb')
     @rbac_rule_validation.action(service="neutron",
diff --git a/patrole_tempest_plugin/tests/api/volume/test_groups_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_groups_rbac.py
index c117d23..730e349 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_groups_rbac.py
@@ -208,7 +208,7 @@
             group_type = self.create_group_type(ignore_notfound=True)
 
         if 'group_specs' not in group_type:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='group_specs')
 
     @decorators.idempotent_id('8d9e2831-24c3-47b7-a76a-2e563287f12f')
@@ -221,5 +221,5 @@
             resp_body = self.group_types_client.show_group_type(
                 group_type['id'])['group_type']
         if 'group_specs' not in resp_body:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute='group_specs')
diff --git a/patrole_tempest_plugin/tests/api/volume/test_limits_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_limits_rbac.py
index 3127d83..2bd0992 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_limits_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_limits_rbac.py
@@ -51,4 +51,5 @@
                 'limits']['absolute']
         for key in expected_keys:
             if key not in absolute_limits:
-                raise rbac_exceptions.RbacMalformedResponse(attribute=key)
+                raise rbac_exceptions.RbacMissingAttributeResponseBody(
+                    attribute=key)
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_metadata_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_metadata_rbac.py
index 6c2c84d..7e0044d 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_metadata_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_metadata_rbac.py
@@ -111,7 +111,7 @@
                 'volumes']
         expected_attr = 'volume_image_metadata'
         if expected_attr not in resp_body[0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @decorators.idempotent_id('53f94d52-0dd5-42cf-a3a4-59b35150b3d5')
@@ -129,7 +129,7 @@
                 'volume']
         expected_attr = 'volume_image_metadata'
         if expected_attr not in resp_body:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=expected_attr)
 
     @decorators.idempotent_id('a9d9e825-5ea3-42e6-96f3-7ac4e97b2ed0')
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volumes_backup_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volumes_backup_rbac.py
index bf22341..0efeb33 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volumes_backup_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volumes_backup_rbac.py
@@ -210,7 +210,7 @@
         # Show backup API attempts to inject the attribute below into the
         # response body but only if policy enforcement succeeds.
         if self.expected_attr not in body:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=self.expected_attr)
 
     @decorators.idempotent_id('aa40b7c0-5974-48be-8cbc-e23cc61c4c68')
@@ -221,7 +221,7 @@
             body = self.backups_client.list_backups(detail=True)['backups']
 
         if self.expected_attr not in body[0]:
-            raise rbac_exceptions.RbacMalformedResponse(
+            raise rbac_exceptions.RbacMissingAttributeResponseBody(
                 attribute=self.expected_attr)
 
 
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volumes_snapshots_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volumes_snapshots_rbac.py
index 40469a2..55adf1a 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volumes_snapshots_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volumes_snapshots_rbac.py
@@ -76,7 +76,7 @@
                 self.snapshot['id'])['snapshot']
         for expected_attr in expected_attrs:
             if expected_attr not in resp:
-                raise rbac_exceptions.RbacMalformedResponse(
+                raise rbac_exceptions.RbacMissingAttributeResponseBody(
                     attribute=expected_attr)
 
     @rbac_rule_validation.action(service="cinder",
@@ -136,5 +136,5 @@
             resp = self._list_by_param_values(with_detail=True, **params)
         for expected_attr in expected_attrs:
             if expected_attr not in resp[0]:
-                raise rbac_exceptions.RbacMalformedResponse(
+                raise rbac_exceptions.RbacMissingAttributeResponseBody(
                     attribute=expected_attr)
diff --git a/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py b/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
index 1531df1..9e547b8 100644
--- a/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
+++ b/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
@@ -46,8 +46,9 @@
                                project_id=mock.sentinel.project_id)
         setattr(self.mock_test_args.os_primary, 'credentials', mock_creds)
 
+        self.test_roles = ['member']
         self.useFixture(
-            patrole_fixtures.ConfPatcher(rbac_test_roles=['member'],
+            patrole_fixtures.ConfPatcher(rbac_test_roles=self.test_roles,
                                          group='patrole'))
         # Disable patrole log for unit tests.
         self.useFixture(
@@ -69,9 +70,10 @@
                                project_id=mock.sentinel.project_id)
         setattr(self.mock_test_args.os_primary, 'credentials', mock_creds)
 
+        self.test_roles = ['member', 'anotherrole']
         self.useFixture(
-            patrole_fixtures.ConfPatcher(
-                rbac_test_roles=['member', 'anotherrole'], group='patrole'))
+            patrole_fixtures.ConfPatcher(rbac_test_roles=self.test_roles,
+                                         group='patrole'))
         # Disable patrole log for unit tests.
         self.useFixture(
             patrole_fixtures.ConfPatcher(enable_reporting=False,
@@ -150,43 +152,66 @@
 
     @mock.patch.object(rbac_rv, 'LOG', autospec=True)
     @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
-    def test_rule_validation_rbac_malformed_response_positive(
+    def test_rule_validation_rbac_failed_response_body_positive(
             self, mock_authority, mock_log):
-        """Test RbacMalformedResponse error is thrown without permission
-        passes.
+        """Test BasePatroleResponseBodyException error is thrown without
+        permission passes.
 
-        Positive test case: if RbacMalformedResponse is thrown and the user is
-        not allowed to perform the action, then this is a success.
+        Positive test case: if subclass of BasePatroleResponseBodyException is
+        thrown and the user is not allowed to perform the action, then this is
+        a success.
         """
         mock_authority.PolicyAuthority.return_value.allowed.return_value =\
             False
 
-        @rbac_rv.action(mock.sentinel.service, rules=[mock.sentinel.action])
-        def test_policy(*args):
-            raise rbac_exceptions.RbacMalformedResponse()
+        def _do_test(exception_cls, **kwargs):
+            @rbac_rv.action(mock.sentinel.service,
+                            rules=[mock.sentinel.action])
+            def test_policy(*args):
+                raise exception_cls(**kwargs)
 
-        mock_log.error.assert_not_called()
+            mock_log.error.assert_not_called()
+            mock_log.warning.assert_not_called()
+
+        _do_test(rbac_exceptions.RbacMissingAttributeResponseBody,
+                 attribute=mock.sentinel.attr)
+        _do_test(rbac_exceptions.RbacPartialResponseBody,
+                 body=mock.sentinel.body)
+        _do_test(rbac_exceptions.RbacEmptyResponseBody)
 
     @mock.patch.object(rbac_rv, 'LOG', autospec=True)
     @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
-    def test_rule_validation_rbac_malformed_response_negative(
+    def test_rule_validation_soft_authorization_exceptions(
             self, mock_authority, mock_log):
-        """Test RbacMalformedResponse error is thrown with permission fails.
+        """Test RbacUnderPermissionException error is thrown when any of the
+        soft authorization-related exceptions are raised by a test.
 
-        Negative test case: if RbacMalformedResponse is thrown and the user is
-        allowed to perform the action, then this is an expected failure.
+        Negative test case: if subclass of BasePatroleResponseBodyException is
+        thrown and the user is allowed to perform the action, then this is an
+        expected failure.
         """
         mock_authority.PolicyAuthority.return_value.allowed.return_value = True
 
-        @rbac_rv.action(mock.sentinel.service, rules=[mock.sentinel.action])
-        def test_policy(*args):
-            raise rbac_exceptions.RbacMalformedResponse()
+        def _do_test(exception_cls, **kwargs):
+            @rbac_rv.action(mock.sentinel.service,
+                            rules=[mock.sentinel.action])
+            def test_policy(*args):
+                raise exception_cls(**kwargs)
 
-        test_re = ("User with roles \['member'\] was not allowed to perform "
-                   "the following actions: \[%s\]. " % (mock.sentinel.action))
-        self.assertRaisesRegex(rbac_exceptions.RbacUnderPermissionException,
-                               test_re, test_policy, self.mock_test_args)
-        self.assertRegex(mock_log.error.mock_calls[0][1][0], test_re)
+            test_re = (".*User with roles \[%s\] was not allowed to "
+                       "perform the following actions: \[%s\].*" % (
+                           ', '.join("'%s'" % r for r in self.test_roles),
+                           mock.sentinel.action))
+            self.assertRaisesRegex(
+                rbac_exceptions.RbacUnderPermissionException, test_re,
+                test_policy, self.mock_test_args)
+            self.assertRegex(mock_log.error.mock_calls[0][1][0], test_re)
+
+        _do_test(rbac_exceptions.RbacMissingAttributeResponseBody,
+                 attribute=mock.sentinel.attr)
+        _do_test(rbac_exceptions.RbacPartialResponseBody,
+                 body=mock.sentinel.body)
+        _do_test(rbac_exceptions.RbacEmptyResponseBody)
 
     @mock.patch.object(rbac_rv, 'LOG', autospec=True)
     @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
@@ -399,28 +424,6 @@
 
     @mock.patch.object(rbac_rv, 'LOG', autospec=True)
     @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
-    def test_rule_validation_rbac_malformed_response_negative(
-            self, mock_authority, mock_log):
-        """Test RbacMalformedResponse error is thrown with permission fails.
-
-        Negative test case: if RbacMalformedResponse is thrown and the user is
-        allowed to perform the action, then this is an expected failure.
-        """
-        mock_authority.PolicyAuthority.return_value.allowed.return_value = True
-
-        @rbac_rv.action(mock.sentinel.service, rules=[mock.sentinel.action])
-        def test_policy(*args):
-            raise rbac_exceptions.RbacMalformedResponse()
-
-        test_re = ("User with roles \['member', 'anotherrole'\] was not "
-                   "allowed to perform the following actions: \[%s\]. " %
-                   (mock.sentinel.action))
-        self.assertRaisesRegex(rbac_exceptions.RbacUnderPermissionException,
-                               test_re, test_policy, self.mock_test_args)
-        self.assertRegex(mock_log.error.mock_calls[0][1][0], test_re)
-
-    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
-    @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
     def test_expect_not_found_and_raise_not_found(self, mock_authority,
                                                   mock_log):
         """Test that expecting 404 and getting 404 works for all scenarios.
@@ -960,7 +963,7 @@
     def test_rule_validation_override_role_patrole_exception_ignored(
             self, mock_authority):
         """Test success case where Patrole exception is raised (which is
-        valid in case of e.g. RbacMalformedException) after override_role
+        valid in case of e.g. RbacPartialResponseBody) after override_role
         passes.
         """
         mock_authority.PolicyAuthority.return_value.allowed.return_value =\
diff --git a/releasenotes/notes/break-up-rbac-malformed-exception-into-discrete-exceptions-92aedb99d0a13f58.yaml b/releasenotes/notes/break-up-rbac-malformed-exception-into-discrete-exceptions-92aedb99d0a13f58.yaml
new file mode 100644
index 0000000..0a93b64
--- /dev/null
+++ b/releasenotes/notes/break-up-rbac-malformed-exception-into-discrete-exceptions-92aedb99d0a13f58.yaml
@@ -0,0 +1,25 @@
+---
+features:
+  - |
+    The exception class ``RbacMalformedException`` has been broken up into the
+    following discrete exceptions:
+
+    * ``RbacMissingAttributeResponseBody`` - incomplete means that the
+      response body (for show or list) is missing certain attributes
+    * ``RbacPartialResponseBody`` - partial means that a list response
+      only returned a subset of the possible results available.
+    * ``RbacEmptyResponseBody`` - empty means that the show or list
+      response body is entirely empty
+
+    Each of the exception classes above deals with a different type of failure
+    related to a soft authorization failure. This means that, rather than a
+    403 error code getting returned by the server, the response body is
+    incomplete in some way.
+upgrade:
+  - |
+    The exception class ``RbacMalformedException`` has been removed. Use one
+    of the following exception classes instead:
+
+    * ``RbacMissingAttributeResponseBody``
+    * ``RbacPartialResponseBody``
+    * ``RbacEmptyResponseBody``