Create scenario tests for amphora

This patch implements amphora tests for the Octavia
Tempest Plugin.

Change-Id: I779d92b22a23b10d834220d80fe997f5a3719bbd
diff --git a/octavia_tempest_plugin/tests/test_base.py b/octavia_tempest_plugin/tests/test_base.py
index cf06879..0e6eba4 100644
--- a/octavia_tempest_plugin/tests/test_base.py
+++ b/octavia_tempest_plugin/tests/test_base.py
@@ -114,6 +114,7 @@
             cls.os_roles_lb_member.healthmonitor_client)
         cls.mem_l7policy_client = cls.os_roles_lb_member.l7policy_client
         cls.mem_l7rule_client = cls.os_roles_lb_member.l7rule_client
+        cls.mem_amphora_client = cls.os_roles_lb_member.amphora_client
 
     @classmethod
     def resource_setup(cls):