Create api+scenario tests for members

This patch implements member tests for the Octavia
Tempest Plugin.

Depends-On: https://review.openstack.org/#/c/567955/
Change-Id: I8813f90538b9ec9047a1777b6cab76485a150498
Story: 2001387
Task: 5970
diff --git a/octavia_tempest_plugin/tests/test_base.py b/octavia_tempest_plugin/tests/test_base.py
index 9862e12..bacc9fd 100644
--- a/octavia_tempest_plugin/tests/test_base.py
+++ b/octavia_tempest_plugin/tests/test_base.py
@@ -105,6 +105,7 @@
         cls.mem_lb_client = cls.os_roles_lb_member.loadbalancer_client
         cls.mem_listener_client = cls.os_roles_lb_member.listener_client
         cls.mem_pool_client = cls.os_roles_lb_member.pool_client
+        cls.mem_member_client = cls.os_roles_lb_member.member_client
 
     @classmethod
     def resource_setup(cls):