diff --git a/doc/source/conf.py b/doc/source/conf.py
index 7e4503d..c2df0b6 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -135,7 +135,7 @@
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
-#html_use_smartypants = True
+html_use_smartypants = False
 
 # Custom sidebar templates, maps document names to template names.
 #html_sidebars = {}
diff --git a/doc/source/library.rst b/doc/source/library.rst
index a89512c..6a2fb83 100644
--- a/doc/source/library.rst
+++ b/doc/source/library.rst
@@ -66,3 +66,4 @@
    library/rest_client
    library/utils
    library/api_microversion_testing
+   library/auth
diff --git a/tempest/api/compute/admin/test_aggregates.py b/tempest/api/compute/admin/test_aggregates.py
index 25efd2e..dabc45e 100644
--- a/tempest/api/compute/admin/test_aggregates.py
+++ b/tempest/api/compute/admin/test_aggregates.py
@@ -13,6 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import testtools
+
 from tempest.api.compute import base
 from tempest.common import tempest_fixtures as fixtures
 from tempest.common.utils import data_utils
@@ -36,10 +38,16 @@
         cls.aggregate_name_prefix = 'test_aggregate'
         cls.az_name_prefix = 'test_az'
 
-        hosts_all = cls.os_adm.hosts_client.list_hosts()['hosts']
-        hosts = map(lambda x: x['host_name'],
-                    filter(lambda y: y['service'] == 'compute', hosts_all))
-        cls.host = hosts[0]
+        cls.host = None
+        hypers = cls.os_adm.hypervisor_client.list_hypervisors()['hypervisors']
+        hypers_available = [hyper['hypervisor_hostname'] for hyper in hypers
+                            if (hyper['state'] == 'up' and
+                                hyper['status'] == 'enabled')]
+        if hypers_available:
+            cls.host = hypers_available[0]
+        else:
+            raise testtools.TestCase.failureException(
+                "no available compute node found")
 
     @test.idempotent_id('0d148aa3-d54c-4317-aa8d-42040a475e20')
     def test_aggregate_create_delete(self):
diff --git a/tempest/lib/auth.py b/tempest/lib/auth.py
index 9c5ad8e..217c1ce 100644
--- a/tempest/lib/auth.py
+++ b/tempest/lib/auth.py
@@ -180,7 +180,7 @@
         :param headers: HTTP headers of the request
         :param body: HTTP body in case of POST / PUT
         :param filters: select a base URL out of the catalog
-        :returns a Tuple (url, headers, body)
+        :return: a Tuple (url, headers, body)
         """
         orig_req = dict(url=url, headers=headers, body=body)
 
@@ -224,6 +224,7 @@
         Configure auth provider to provide alt authentication data
         on a part of the *next* auth_request. If credentials are None,
         set invalid data.
+
         :param request_part: request part to contain invalid auth: url,
                              headers, body
         :param auth_data: alternative auth_data from which to get the
@@ -370,16 +371,19 @@
         """Base URL from catalog
 
         :param filters: Used to filter results
-            Filters can be:
-            - service: service type name such as compute, image, etc.
-            - region: service region name
-            - name: service name, only if service exists
-            - endpoint_type: type of endpoint such as
-                adminURL, publicURL, internalURL
-            - api_version: the version of api used to replace catalog version
-            - skip_path: skips the suffix path of the url and uses base URL
-        :rtype string
-        :return url with filters applied
+
+        Filters can be:
+
+        - service: service type name such as compute, image, etc.
+        - region: service region name
+        - name: service name, only if service exists
+        - endpoint_type: type of endpoint such as
+            adminURL, publicURL, internalURL
+        - api_version: the version of api used to replace catalog version
+        - skip_path: skips the suffix path of the url and uses base URL
+
+        :rtype: string
+        :return: url with filters applied
         """
         if auth_data is None:
             auth_data = self.get_auth()
@@ -499,16 +503,19 @@
         'identity', we can use the original auth URL to build the base_url.
 
         :param filters: Used to filter results
-            Filters can be:
-            - service: service type name such as compute, image, etc.
-            - region: service region name
-            - name: service name, only if service exists
-            - endpoint_type: type of endpoint such as
-                adminURL, publicURL, internalURL
-            - api_version: the version of api used to replace catalog version
-            - skip_path: skips the suffix path of the url and uses base URL
-        :rtype string
-        :return url with filters applied
+
+        Filters can be:
+
+        - service: service type name such as compute, image, etc.
+        - region: service region name
+        - name: service name, only if service exists
+        - endpoint_type: type of endpoint such as
+            adminURL, publicURL, internalURL
+        - api_version: the version of api used to replace catalog version
+        - skip_path: skips the suffix path of the url and uses base URL
+
+        :rtype: string
+        :return: url with filters applied
         """
         if auth_data is None:
             auth_data = self.get_auth()