Fix of client tests in tempest

python-saharaclient tests in tempest were fixed
and documentation updated

Change-Id: I6a5964b8ecd1e343c427ae7aefdadac5cfa26ad9
Closes-bug: #1501347

sahara/tests/tempest/scenario/data_processing/README.rst

@@ -18,6 +18,20 @@ Install sahara, in order to register the tempest plugin interface:
     $ pip install $SAHARA_ROOT_DIR
 ..
 
+Get the latest python-saharaclient resources from the appropriate mirror:
+
+.. sourcecode:: console
+
+    $ git clone https://github.com/openstack/python-saharaclient.git
+..
+
+Install python-saharaclient:
+
+.. sourcecode:: console
+
+    $ pip install $SAHARACLIENT_ROOT_DIR
+..
+
 Get the latest tempest resources from the appropriate mirror:
 
 .. sourcecode:: console
@@ -25,12 +39,13 @@ Get the latest tempest resources from the appropriate mirror:
     $ git clone https://github.com/openstack/tempest.git
 ..
 
-Create a configuration file ``tempest/etc/tempest.conf`` for tempest using the sample file
-from ``tempest/etc/tempest.conf.sample``:
+Create a configuration file ``tempest/etc/tempest.conf`` for tempest.
+The sample file can be generated and used for this purpose:
 
 .. sourcecode:: console
 
     $ cd $TEMPEST_ROOT_DIR
+    $ tox -e genconfig
     $ cp etc/tempest.conf.sample etc/tempest.conf
 ..
 
@@ -38,8 +53,6 @@ Some configuration options are required for running tests. Here is the list:
 
 .. sourcecode:: ini
 
-    [DEFAULT]
-
     [identity]
     uri=
     uri_v3=
@@ -56,6 +69,7 @@ Some configuration options are required for running tests. Here is the list:
 
     [network]
     floating_network_name=
+    public_network_id=
 
     [data_processing]
     fake_image_id=

sahara/tests/tempest/scenario/data_processing/client_tests/base.py

@@ -133,7 +133,7 @@ class BaseDataProcessingTest(manager.ScenarioTest):
 
     @classmethod
     def _find_network_by_name(cls, network_name):
-        for network in cls.networks_client.list_networks():
+        for network in cls.networks_client.list_networks()['networks']:
             if network['label'] == network_name:
                 return network['id']
         return None