6.15.z-alernative solution for default subscription search option (#1…

…5237)

* alernative solution for default subscription search option

* addressed review comments, shorten the for loop

tests/foreman/ui/test_subscription.py

@@ -205,10 +205,11 @@ def test_positive_access_with_non_admin_user_with_manifest(
         default_organization=org,
     ).create()
     with target_sat.ui_session(test_name, user=user.login, password=user_password) as session:
-        assert (
-            session.subscription.search(f'name = "{DEFAULT_SUBSCRIPTION_NAME}"')[0]['Name']
-            == DEFAULT_SUBSCRIPTION_NAME
-        )
+        all_subscriptions = session.subscription.read_subscriptions()
+        assert len(all_subscriptions) > 0
+        assert any(
+            [sub['Name'] == DEFAULT_SUBSCRIPTION_NAME for sub in all_subscriptions]
+        ), 'Default subsciption not found'
 
 
 @pytest.mark.tier2