Fix ReplicaQuotasNegativeTest

This test was not being executed in the CI
due to recent changes in manila-tempest-plugin
and a few bugs went unnoticed.

Change-Id: I4fd282673074887cada729b6e4491ee493e230cc
Signed-off-by: Goutham Pacha Ravi <gouthampravi@gmail.com>
diff --git a/manila_tempest_tests/tests/api/admin/test_quotas_negative.py b/manila_tempest_tests/tests/api/admin/test_quotas_negative.py
index 7d81615..e039045 100644
--- a/manila_tempest_tests/tests/api/admin/test_quotas_negative.py
+++ b/manila_tempest_tests/tests/api/admin/test_quotas_negative.py
@@ -405,6 +405,13 @@
     force_tenant_isolation = True
 
     @classmethod
+    def resource_setup(cls):
+        super(ReplicaQuotasNegativeTest, cls).resource_setup()
+        cls.client = cls.shares_v2_client
+        cls.user_id = cls.client.user_id
+        cls.tenant_id = cls.client.tenant_id
+
+    @classmethod
     def skip_checks(cls):
         super(ReplicaQuotasNegativeTest, cls).skip_checks()
         if not CONF.auth.use_dynamic_credentials: