diff --git a/releasenotes/notes/add-network-versions-client-d90e8334e1443f5c.yaml b/releasenotes/notes/add-network-versions-client-d90e8334e1443f5c.yaml
new file mode 100644
index 0000000..07e3151
--- /dev/null
+++ b/releasenotes/notes/add-network-versions-client-d90e8334e1443f5c.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - Adds a network version client for querying
+    Neutron's API version discovery URL ("GET /").
diff --git a/tempest/api/identity/admin/v2/test_endpoints.py b/tempest/api/identity/admin/v2/test_endpoints.py
index 4493c8e..651a316 100644
--- a/tempest/api/identity/admin/v2/test_endpoints.py
+++ b/tempest/api/identity/admin/v2/test_endpoints.py
@@ -28,7 +28,8 @@
         s_type = data_utils.rand_name('type')
         s_description = data_utils.rand_name('description')
         cls.service_data = cls.services_client.create_service(
-            s_name, s_type, description=s_description)['OS-KSADM:service']
+            name=s_name, type=s_type,
+            description=s_description)['OS-KSADM:service']
         cls.service_id = cls.service_data['id']
         cls.service_ids.append(cls.service_id)
         # Create endpoints so as to use for LIST and GET test cases
diff --git a/tempest/api/identity/admin/v2/test_services.py b/tempest/api/identity/admin/v2/test_services.py
index fe83759..6c9b564 100644
--- a/tempest/api/identity/admin/v2/test_services.py
+++ b/tempest/api/identity/admin/v2/test_services.py
@@ -35,10 +35,11 @@
         # GET Service
         # Creating a Service
         name = data_utils.rand_name('service')
-        type = data_utils.rand_name('type')
+        s_type = data_utils.rand_name('type')
         description = data_utils.rand_name('description')
         service_data = self.services_client.create_service(
-            name, type, description=description)['OS-KSADM:service']
+            name=name, type=s_type,
+            description=description)['OS-KSADM:service']
         self.assertFalse(service_data['id'] is None)
         self.addCleanup(self._del_service, service_data['id'])
         # Verifying response body of create service
@@ -46,7 +47,7 @@
         self.assertIn('name', service_data)
         self.assertEqual(name, service_data['name'])
         self.assertIn('type', service_data)
-        self.assertEqual(type, service_data['type'])
+        self.assertEqual(s_type, service_data['type'])
         self.assertIn('description', service_data)
         self.assertEqual(description, service_data['description'])
         # Get service
@@ -68,15 +69,15 @@
     def test_create_service_without_description(self):
         # Create a service only with name and type
         name = data_utils.rand_name('service')
-        type = data_utils.rand_name('type')
-        service = self.services_client.create_service(name,
-                                                      type)['OS-KSADM:service']
+        s_type = data_utils.rand_name('type')
+        service = self.services_client.create_service(
+            name=name, type=s_type)['OS-KSADM:service']
         self.assertIn('id', service)
         self.addCleanup(self._del_service, service['id'])
         self.assertIn('name', service)
         self.assertEqual(name, service['name'])
         self.assertIn('type', service)
-        self.assertEqual(type, service['type'])
+        self.assertEqual(s_type, service['type'])
 
     @test.attr(type='smoke')
     @test.idempotent_id('34ea6489-012d-4a86-9038-1287cadd5eca')
@@ -85,10 +86,12 @@
         services = []
         for _ in moves.xrange(3):
             name = data_utils.rand_name('service')
-            type = data_utils.rand_name('type')
+            s_type = data_utils.rand_name('type')
             description = data_utils.rand_name('description')
+
             service = self.services_client.create_service(
-                name, type, description=description)['OS-KSADM:service']
+                name=name, type=s_type,
+                description=description)['OS-KSADM:service']
             services.append(service)
         service_ids = map(lambda x: x['id'], services)
 
diff --git a/tempest/api/identity/admin/v2/test_tokens.py b/tempest/api/identity/admin/v2/test_tokens.py
index ee04420..2297a9d 100644
--- a/tempest/api/identity/admin/v2/test_tokens.py
+++ b/tempest/api/identity/admin/v2/test_tokens.py
@@ -30,8 +30,10 @@
         tenant = self.tenants_client.create_tenant(tenant_name)['tenant']
         self.data.tenants.append(tenant)
         # second:create a user
-        user = self.users_client.create_user(user_name, user_password,
-                                             tenant['id'], '')['user']
+        user = self.users_client.create_user(name=user_name,
+                                             password=user_password,
+                                             tenantId=tenant['id'],
+                                             email='')['user']
         self.data.users.append(user)
         # then get a token for the user
         body = self.token_client.auth(user_name,
@@ -62,8 +64,10 @@
         user_password = data_utils.rand_password()
         tenant_id = None  # No default tenant so will get unscoped token.
         email = ''
-        user = self.users_client.create_user(user_name, user_password,
-                                             tenant_id, email)['user']
+        user = self.users_client.create_user(name=user_name,
+                                             password=user_password,
+                                             tenantId=tenant_id,
+                                             email=email)['user']
         self.data.users.append(user)
 
         # Create a couple tenants.
diff --git a/tempest/api/identity/admin/v2/test_users.py b/tempest/api/identity/admin/v2/test_users.py
index d860d2f..0f783b3 100644
--- a/tempest/api/identity/admin/v2/test_users.py
+++ b/tempest/api/identity/admin/v2/test_users.py
@@ -36,9 +36,10 @@
     def test_create_user(self):
         # Create a user
         self.data.setup_test_tenant()
-        user = self.users_client.create_user(self.alt_user, self.alt_password,
-                                             self.data.tenant['id'],
-                                             self.alt_email)['user']
+        user = self.users_client.create_user(name=self.alt_user,
+                                             password=self.alt_password,
+                                             tenantId=self.data.tenant['id'],
+                                             email=self.alt_email)['user']
         self.data.users.append(user)
         self.assertEqual(self.alt_user, user['name'])
 
@@ -47,9 +48,10 @@
         # Create a user with enabled : False
         self.data.setup_test_tenant()
         name = data_utils.rand_name('test_user')
-        user = self.users_client.create_user(name, self.alt_password,
-                                             self.data.tenant['id'],
-                                             self.alt_email,
+        user = self.users_client.create_user(name=name,
+                                             password=self.alt_password,
+                                             tenantId=self.data.tenant['id'],
+                                             email=self.alt_email,
                                              enabled=False)['user']
         self.data.users.append(user)
         self.assertEqual(name, user['name'])
@@ -61,9 +63,10 @@
         # Test case to check if updating of user attributes is successful.
         test_user = data_utils.rand_name('test_user')
         self.data.setup_test_tenant()
-        user = self.users_client.create_user(test_user, self.alt_password,
-                                             self.data.tenant['id'],
-                                             self.alt_email)['user']
+        user = self.users_client.create_user(name=test_user,
+                                             password=self.alt_password,
+                                             tenantId=self.data.tenant['id'],
+                                             email=self.alt_email)['user']
         # Delete the User at the end of this method
         self.addCleanup(self.users_client.delete_user, user['id'])
         # Updating user details with new values
@@ -87,9 +90,10 @@
         # Delete a user
         test_user = data_utils.rand_name('test_user')
         self.data.setup_test_tenant()
-        user = self.users_client.create_user(test_user, self.alt_password,
-                                             self.data.tenant['id'],
-                                             self.alt_email)['user']
+        user = self.users_client.create_user(name=test_user,
+                                             password=self.alt_password,
+                                             tenantId=self.data.tenant['id'],
+                                             email=self.alt_email)['user']
         self.users_client.delete_user(user['id'])
 
     @test.idempotent_id('aca696c3-d645-4f45-b728-63646045beb1')
@@ -139,16 +143,18 @@
         fetched_user_ids = list()
         password1 = data_utils.rand_password()
         alt_tenant_user1 = data_utils.rand_name('tenant_user1')
-        user1 = self.users_client.create_user(alt_tenant_user1, password1,
-                                              self.data.tenant['id'],
-                                              'user1@123')['user']
+        user1 = self.users_client.create_user(name=alt_tenant_user1,
+                                              password=password1,
+                                              tenantId=self.data.tenant['id'],
+                                              email='user1@123')['user']
         user_ids.append(user1['id'])
         self.data.users.append(user1)
         password2 = data_utils.rand_password()
         alt_tenant_user2 = data_utils.rand_name('tenant_user2')
-        user2 = self.users_client.create_user(alt_tenant_user2, password2,
-                                              self.data.tenant['id'],
-                                              'user2@123')['user']
+        user2 = self.users_client.create_user(name=alt_tenant_user2,
+                                              password=password2,
+                                              tenantId=self.data.tenant['id'],
+                                              email='user2@123')['user']
         user_ids.append(user2['id'])
         self.data.users.append(user2)
         # List of users for the respective tenant ID
@@ -180,9 +186,11 @@
 
         alt_user2 = data_utils.rand_name('second_user')
         alt_password2 = data_utils.rand_password()
-        second_user = self.users_client.create_user(alt_user2, alt_password2,
-                                                    self.data.tenant['id'],
-                                                    'user2@123')['user']
+        second_user = self.users_client.create_user(
+            name=alt_user2,
+            password=alt_password2,
+            tenantId=self.data.tenant['id'],
+            email='user2@123')['user']
         user_ids.append(second_user['id'])
         self.data.users.append(second_user)
         role = self.roles_client.assign_user_role(tenant['id'],
diff --git a/tempest/api/identity/admin/v2/test_users_negative.py b/tempest/api/identity/admin/v2/test_users_negative.py
index 5fda4c14..78b89fa 100644
--- a/tempest/api/identity/admin/v2/test_users_negative.py
+++ b/tempest/api/identity/admin/v2/test_users_negative.py
@@ -35,9 +35,9 @@
         self.data.setup_test_tenant()
         self.assertRaises(lib_exc.Forbidden,
                           self.non_admin_users_client.create_user,
-                          self.alt_user, self.alt_password,
-                          self.data.tenant['id'],
-                          self.alt_email)
+                          name=self.alt_user, password=self.alt_password,
+                          tenantId=self.data.tenant['id'],
+                          email=self.alt_email)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('d80d0c2f-4514-4d1e-806d-0930dfc5a187')
@@ -45,8 +45,9 @@
         # User with an empty name should not be created
         self.data.setup_test_tenant()
         self.assertRaises(lib_exc.BadRequest, self.users_client.create_user,
-                          '', self.alt_password, self.data.tenant['id'],
-                          self.alt_email)
+                          name='', password=self.alt_password,
+                          tenantId=self.data.tenant['id'],
+                          email=self.alt_email)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('7704b4f3-3b75-4b82-87cc-931d41c8f780')
@@ -54,8 +55,9 @@
         # Length of user name filed should be restricted to 255 characters
         self.data.setup_test_tenant()
         self.assertRaises(lib_exc.BadRequest, self.users_client.create_user,
-                          'a' * 256, self.alt_password,
-                          self.data.tenant['id'], self.alt_email)
+                          name='a' * 256, password=self.alt_password,
+                          tenantId=self.data.tenant['id'],
+                          email=self.alt_email)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('57ae8558-120c-4723-9308-3751474e7ecf')
@@ -63,16 +65,20 @@
         # Duplicate user should not be created
         self.data.setup_test_user()
         self.assertRaises(lib_exc.Conflict, self.users_client.create_user,
-                          self.data.user['name'], self.data.user_password,
-                          self.data.tenant['id'], self.data.user['email'])
+                          name=self.data.user['name'],
+                          password=self.data.user_password,
+                          tenantId=self.data.tenant['id'],
+                          email=self.data.user['email'])
 
     @test.attr(type=['negative'])
     @test.idempotent_id('0132cc22-7c4f-42e1-9e50-ac6aad31d59a')
     def test_create_user_for_non_existent_tenant(self):
         # Attempt to create a user in a non-existent tenant should fail
         self.assertRaises(lib_exc.NotFound, self.users_client.create_user,
-                          self.alt_user, self.alt_password, '49ffgg99999',
-                          self.alt_email)
+                          name=self.alt_user,
+                          password=self.alt_password,
+                          tenantId='49ffgg99999',
+                          email=self.alt_email)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('55bbb103-d1ae-437b-989b-bcdf8175c1f4')
@@ -88,8 +94,9 @@
         self.addCleanup(self.client.auth_provider.clear_auth)
 
         self.assertRaises(lib_exc.Unauthorized, self.users_client.create_user,
-                          self.alt_user, self.alt_password,
-                          self.data.tenant['id'], self.alt_email)
+                          name=self.alt_user, password=self.alt_password,
+                          tenantId=self.data.tenant['id'],
+                          email=self.alt_email)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('23a2f3da-4a1a-41da-abdd-632328a861ad')
@@ -98,9 +105,9 @@
         self.data.setup_test_tenant()
         name = data_utils.rand_name('test_user')
         self.assertRaises(lib_exc.BadRequest, self.users_client.create_user,
-                          name, self.alt_password,
-                          self.data.tenant['id'],
-                          self.alt_email, enabled=3)
+                          name=name, password=self.alt_password,
+                          tenantId=self.data.tenant['id'],
+                          email=self.alt_email, enabled=3)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('3d07e294-27a0-4144-b780-a2a1bf6fee19')
diff --git a/tempest/api/identity/base.py b/tempest/api/identity/base.py
index 31420d1..bc1b158 100644
--- a/tempest/api/identity/base.py
+++ b/tempest/api/identity/base.py
@@ -215,11 +215,10 @@
         self.domains = []
 
     def _create_test_user(self, **kwargs):
-        username = data_utils.rand_name('test_user')
         self.user_password = data_utils.rand_password()
         self.user = self.users_client.create_user(
-            username, password=self.user_password,
-            email=username + '@testmail.tm', **kwargs)['user']
+            password=self.user_password,
+            **kwargs)['user']
         self.users.append(self.user)
 
     def setup_test_role(self):
@@ -256,7 +255,10 @@
     def setup_test_user(self):
         """Set up a test user."""
         self.setup_test_tenant()
-        self._create_test_user(tenant_id=self.tenant['id'])
+        username = data_utils.rand_name('test_user')
+        email = username + '@testmail.tm'
+        self._create_test_user(name=username, email=email,
+                               tenantId=self.tenant['id'])
 
     def setup_test_tenant(self):
         """Set up a test tenant."""
@@ -271,7 +273,10 @@
     def setup_test_user(self):
         """Set up a test user."""
         self.setup_test_project()
-        self._create_test_user(project_id=self.project['id'])
+        username = data_utils.rand_name('test_user')
+        email = username + '@testmail.tm'
+        self._create_test_user(user_name=username, email=email,
+                               project_id=self.project['id'])
 
     def setup_test_project(self):
         """Set up a test project."""
diff --git a/tempest/api/network/base.py b/tempest/api/network/base.py
index 89fa576..9e7c795 100644
--- a/tempest/api/network/base.py
+++ b/tempest/api/network/base.py
@@ -80,6 +80,7 @@
         cls.security_groups_client = cls.os.security_groups_client
         cls.security_group_rules_client = (
             cls.os.security_group_rules_client)
+        cls.network_versions_client = cls.os.network_versions_client
 
     @classmethod
     def resource_setup(cls):
diff --git a/tempest/api/network/test_versions.py b/tempest/api/network/test_versions.py
new file mode 100644
index 0000000..9cf93f6
--- /dev/null
+++ b/tempest/api/network/test_versions.py
@@ -0,0 +1,40 @@
+# Copyright 2016 VMware, Inc.
+#
+# 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.api.network import base
+from tempest import test
+
+
+class NetworksApiDiscovery(base.BaseNetworkTest):
+    @test.attr(type='smoke')
+    @test.idempotent_id('cac8a836-c2e0-4304-b556-cd299c7281d1')
+    def test_api_version_resources(self):
+        """Test that GET / returns expected resources.
+
+        The versions document returned by Neutron returns a few other
+        resources other than just available API versions: it also
+        states the status of each API version and provides links to
+        schema.
+        """
+
+        result = self.network_versions_client.list_versions()
+        expected_versions = ('v2.0')
+        expected_resources = ('id', 'links', 'status')
+        received_list = result.values()
+
+        for item in received_list:
+            for version in item:
+                for resource in expected_resources:
+                    self.assertIn(resource, version)
+                self.assertIn(version['id'], expected_versions)
diff --git a/tempest/clients.py b/tempest/clients.py
index 5e75f27..3d9e85c 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -106,6 +106,8 @@
     SecurityGroupsClient
 from tempest.lib.services.network.subnetpools_client import SubnetpoolsClient
 from tempest.lib.services.network.subnets_client import SubnetsClient
+from tempest.lib.services.network.versions_client import \
+    NetworkVersionsClient
 from tempest import manager
 from tempest.services.baremetal.v1.json.baremetal_client import \
     BaremetalClient
@@ -282,6 +284,8 @@
             self.auth_provider, **params)
         self.security_groups_client = SecurityGroupsClient(
             self.auth_provider, **params)
+        self.network_versions_client = NetworkVersionsClient(
+            self.auth_provider, **params)
 
     def _set_image_clients(self):
         params = {
diff --git a/tempest/cmd/javelin.py b/tempest/cmd/javelin.py
index 1f433eb..7ce6225 100755
--- a/tempest/cmd/javelin.py
+++ b/tempest/cmd/javelin.py
@@ -391,8 +391,9 @@
                         % u['name'])
         except lib_exc.NotFound:
             admin.users.create_user(
-                u['name'], u['pass'], tenant['id'],
-                "%s@%s" % (u['name'], tenant['id']),
+                name=u['name'], password=u['pass'],
+                tenantId=tenant['id'],
+                email="%s@%s" % (u['name'], tenant['id']),
                 enabled=True)
 
 
diff --git a/tempest/common/cred_client.py b/tempest/common/cred_client.py
index aac036b..48d81ca 100644
--- a/tempest/common/cred_client.py
+++ b/tempest/common/cred_client.py
@@ -40,8 +40,9 @@
         self.roles_client = roles_client
 
     def create_user(self, username, password, project, email):
-        user = self.users_client.create_user(
-            username, password, project['id'], email)
+        params = self._create_user_params(username, password,
+                                          project['id'], email)
+        user = self.users_client.create_user(**params)
         if 'user' in user:
             user = user['user']
         return user
@@ -101,6 +102,13 @@
                                             users_client,
                                             roles_client)
 
+    def _create_user_params(self, username, password, project_id, email):
+        params = {'name': username,
+                  'password': password,
+                  'tenantId': project_id,
+                  'email': email}
+        return params
+
     def create_project(self, name, description):
         tenant = self.projects_client.create_tenant(
             name=name, description=description)['tenant']
@@ -143,6 +151,13 @@
             msg = "Requested domain %s could not be found" % domain_name
             raise lib_exc.InvalidCredentials(msg)
 
+    def _create_user_params(self, username, password, project_id, email):
+        params = {'user_name': username,
+                  'password': password,
+                  'project_id': project_id,
+                  'email': email}
+        return params
+
     def create_project(self, name, description):
         project = self.projects_client.create_project(
             name=name, description=description,
diff --git a/tempest/common/dynamic_creds.py b/tempest/common/dynamic_creds.py
index 0b92c15..b0c01f5 100644
--- a/tempest/common/dynamic_creds.py
+++ b/tempest/common/dynamic_creds.py
@@ -109,22 +109,22 @@
                     os.subnets_client, os.ports_client,
                     os.security_groups_client)
 
-    def _create_creds(self, suffix="", admin=False, roles=None):
-        """Create random credentials under the following schema.
+    def _create_creds(self, admin=False, roles=None):
+        """Create credentials with random name.
 
-        If the name contains a '.' is the full class path of something, and
-        we don't really care. If it isn't, it's probably a meaningful name,
-        so use it.
+        Creates project and user. When admin flag is True create user
+        with admin role. Assign user with additional roles (for example
+        _member_) and roles requested by caller.
 
-        For logging purposes, -user and -tenant are long and redundant,
-        don't use them. The user# will be sufficient to figure it out.
+        :param admin: Flag if to assign to the user admin role
+        :type admin: bool
+        :param roles: Roles to assign for the user
+        :type roles: list
+        :return: Readonly Credentials with network resources
         """
-        if '.' in self.name:
-            root = ""
-        else:
-            root = self.name
+        root = self.name
 
-        project_name = data_utils.rand_name(root) + suffix
+        project_name = data_utils.rand_name(root)
         project_desc = project_name + "-desc"
         project = self.creds_client.create_project(
             name=project_name, description=project_desc)
@@ -133,15 +133,14 @@
         # having the same ID in both makes it easier to match them and debug.
         username = project_name
         user_password = data_utils.rand_password()
-        email = data_utils.rand_name(root) + suffix + "@example.com"
+        email = data_utils.rand_name(root) + "@example.com"
         user = self.creds_client.create_user(
             username, user_password, project, email)
         if 'user' in user:
             user = user['user']
         role_assigned = False
         if admin:
-            self.creds_client.assign_user_role(user, project,
-                                               self.admin_role)
+            self.creds_client.assign_user_role(user, project, self.admin_role)
             role_assigned = True
             if (self.identity_version == 'v3' and
                     CONF.identity.admin_domain_scope):
diff --git a/tempest/lib/api_schema/response/compute/v2_1/instance_usage_audit_logs.py b/tempest/lib/api_schema/response/compute/v2_1/instance_usage_audit_logs.py
index c6c4deb..15224c5 100644
--- a/tempest/lib/api_schema/response/compute/v2_1/instance_usage_audit_logs.py
+++ b/tempest/lib/api_schema/response/compute/v2_1/instance_usage_audit_logs.py
@@ -19,7 +19,23 @@
             'type': 'array',
             'items': {'type': 'string'}
         },
-        'log': {'type': 'object'},
+        'log': {
+            'type': 'object',
+            'patternProperties': {
+                # NOTE: Here is a host name.
+                '^.+$': {
+                    'type': 'object',
+                    'properties': {
+                        'state': {'type': 'string'},
+                        'instances': {'type': 'integer'},
+                        'errors': {'type': 'integer'},
+                        'message': {'type': 'string'}
+                    },
+                    'additionalProperties': False,
+                    'required': ['state', 'instances', 'errors', 'message']
+                }
+            }
+        },
         'num_hosts': {'type': 'integer'},
         'num_hosts_done': {'type': 'integer'},
         'num_hosts_not_run': {'type': 'integer'},
diff --git a/tempest/lib/services/network/versions_client.py b/tempest/lib/services/network/versions_client.py
new file mode 100644
index 0000000..0202927
--- /dev/null
+++ b/tempest/lib/services/network/versions_client.py
@@ -0,0 +1,45 @@
+# Copyright 2016 VMware, Inc.  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.
+
+import time
+
+from oslo_serialization import jsonutils as json
+from six.moves import urllib
+
+from tempest.lib.services.network import base
+
+
+class NetworkVersionsClient(base.BaseNetworkClient):
+
+    def list_versions(self):
+        """Do a GET / to fetch available API version information."""
+
+        endpoint = self.base_url
+        url = urllib.parse.urlparse(endpoint)
+        version_url = '%s://%s/' % (url.scheme, url.netloc)
+
+        # Note: we do a raw_request here because we want to use
+        # an unversioned URL, not "v2/$project_id/".
+        # Since raw_request doesn't log anything, we do that too.
+        start = time.time()
+        self._log_request_start('GET', version_url)
+        response, body = self.raw_request(version_url, 'GET')
+        end = time.time()
+        self._log_request('GET', version_url, response,
+                          secs=(end - start), resp_body=body)
+
+        self.response_checker('GET', response, body)
+        self.expected_success(200, response.status)
+        body = json.loads(body)
+        return body
diff --git a/tempest/services/identity/v2/json/services_client.py b/tempest/services/identity/v2/json/services_client.py
index d8be6c6..4a63d56 100644
--- a/tempest/services/identity/v2/json/services_client.py
+++ b/tempest/services/identity/v2/json/services_client.py
@@ -13,6 +13,7 @@
 # limitations under the License.
 
 from oslo_serialization import jsonutils as json
+from six.moves.urllib import parse as urllib
 
 from tempest.lib.common import rest_client
 
@@ -20,14 +21,9 @@
 class ServicesClient(rest_client.RestClient):
     api_version = "v2.0"
 
-    def create_service(self, name, type, **kwargs):
+    def create_service(self, **kwargs):
         """Create a service."""
-        post_body = {
-            'name': name,
-            'type': type,
-            'description': kwargs.get('description')
-        }
-        post_body = json.dumps({'OS-KSADM:service': post_body})
+        post_body = json.dumps({'OS-KSADM:service': kwargs})
         resp, body = self.post('/OS-KSADM/services', post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
@@ -41,9 +37,12 @@
         body = json.loads(body)
         return rest_client.ResponseBody(resp, body)
 
-    def list_services(self):
+    def list_services(self, **params):
         """List Service - Returns Services."""
-        resp, body = self.get('/OS-KSADM/services')
+        url = '/OS-KSADM/services'
+        if params:
+            url += '?%s' % urllib.urlencode(params)
+        resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
         return rest_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v2/json/users_client.py b/tempest/services/identity/v2/json/users_client.py
index 6573b6e..1048840 100644
--- a/tempest/services/identity/v2/json/users_client.py
+++ b/tempest/services/identity/v2/json/users_client.py
@@ -11,6 +11,7 @@
 #    under the License.
 
 from oslo_serialization import jsonutils as json
+from six.moves.urllib import parse as urllib
 
 from tempest.lib.common import rest_client
 
@@ -18,18 +19,13 @@
 class UsersClient(rest_client.RestClient):
     api_version = "v2.0"
 
-    def create_user(self, name, password, tenant_id, email, **kwargs):
-        """Create a user."""
-        post_body = {
-            'name': name,
-            'password': password,
-            'email': email
-        }
-        if tenant_id is not None:
-            post_body['tenantId'] = tenant_id
-        if kwargs.get('enabled') is not None:
-            post_body['enabled'] = kwargs.get('enabled')
-        post_body = json.dumps({'user': post_body})
+    def create_user(self, **kwargs):
+        """Create a user.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-identity-admin-v2.html#admin-createUser
+        """
+        post_body = json.dumps({'user': kwargs})
         resp, body = self.post('users', post_body)
         self.expected_success(200, resp.status)
         body = json.loads(body)
@@ -48,21 +44,36 @@
         return rest_client.ResponseBody(resp, body)
 
     def show_user(self, user_id):
-        """GET a user."""
+        """GET a user.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-identity-admin-v2.html#admin-showUser
+        """
         resp, body = self.get("users/%s" % user_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
         return rest_client.ResponseBody(resp, body)
 
     def delete_user(self, user_id):
-        """Delete a user."""
+        """Delete a user.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-identity-admin-v2.html#admin-deleteUser
+        """
         resp, body = self.delete("users/%s" % user_id)
         self.expected_success(204, resp.status)
         return rest_client.ResponseBody(resp, body)
 
-    def list_users(self):
-        """Get the list of users."""
-        resp, body = self.get("users")
+    def list_users(self, **params):
+        """Get the list of users.
+
+        Available params: see http://developer.openstack.org/
+                              api-ref-identity-admin-v2.html#admin-listUsers
+        """
+        url = "users"
+        if params:
+            url += '?%s' % urllib.urlencode(params)
+        resp, body = self.get(url)
         self.expected_success(200, resp.status)
         body = json.loads(body)
         return rest_client.ResponseBody(resp, body)
diff --git a/tempest/tests/cmd/test_javelin.py b/tempest/tests/cmd/test_javelin.py
index 2d0256a..50660ff 100644
--- a/tempest/tests/cmd/test_javelin.py
+++ b/tempest/tests/cmd/test_javelin.py
@@ -120,11 +120,12 @@
         fake_tenant_id = self.fake_object['tenant']['id']
         fake_email = "%s@%s" % (self.fake_object['user'], fake_tenant_id)
         mocked_function = self.fake_client.users.create_user
-        mocked_function.assert_called_once_with(self.fake_object['name'],
-                                                self.fake_object['password'],
-                                                fake_tenant_id,
-                                                fake_email,
-                                                enabled=True)
+        mocked_function.assert_called_once_with(
+            name=self.fake_object['name'],
+            password=self.fake_object['password'],
+            tenantId=fake_tenant_id,
+            email=fake_email,
+            enabled=True)
 
     def test_create_user_missing_tenant(self):
         self.useFixture(mockpatch.Patch(
diff --git a/tempest/tests/lib/services/network/test_versions_client.py b/tempest/tests/lib/services/network/test_versions_client.py
new file mode 100644
index 0000000..715176b
--- /dev/null
+++ b/tempest/tests/lib/services/network/test_versions_client.py
@@ -0,0 +1,77 @@
+# Copyright 2016 VMware, Inc.  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.
+
+import copy
+
+from tempest.lib.services.network.versions_client import NetworkVersionsClient
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestNetworkVersionsClient(base.BaseServiceTest):
+
+    FAKE_INIT_VERSION = {
+        "version": {
+            "id": "v2.0",
+            "links": [
+                {
+                    "href": "http://openstack.example.com/v2.0/",
+                    "rel": "self"
+                },
+                {
+                    "href": "http://docs.openstack.org/",
+                    "rel": "describedby",
+                    "type": "text/html"
+                }
+            ],
+            "status": "CURRENT",
+            "updated": "2013-07-23T11:33:21Z",
+            "version": "2.0",
+            "min_version": "2.0"
+            }
+        }
+
+    FAKE_VERSIONS_INFO = {
+        "versions": [FAKE_INIT_VERSION["version"]]
+        }
+
+    FAKE_VERSION_INFO = copy.deepcopy(FAKE_INIT_VERSION)
+
+    FAKE_VERSION_INFO["version"]["media-types"] = [
+        {
+            "base": "application/json",
+            "type": "application/vnd.openstack.network+json;version=2.0"
+        }
+        ]
+
+    def setUp(self):
+        super(TestNetworkVersionsClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.versions_client = (
+            NetworkVersionsClient
+            (fake_auth, 'compute', 'regionOne'))
+
+    def _test_versions_client(self, bytes_body=False):
+        self.check_service_client_function(
+            self.versions_client.list_versions,
+            'tempest.lib.common.rest_client.RestClient.raw_request',
+            self.FAKE_VERSIONS_INFO,
+            bytes_body,
+            200)
+
+    def test_list_versions_client_with_str_body(self):
+        self._test_versions_client()
+
+    def test_list_versions_client_with_bytes_body(self):
+        self._test_versions_client(bytes_body=True)