If we can't get the role, use a translated role

Author: cheald

lib/redis/client.rb

@@ -506,7 +506,7 @@ def check(client)
             role = client.call([:role])[0]
           rescue Redis::CommandError
             # Assume the test is passed if we can't get a reply from ROLE...
-            role = @role
+            role = EXPECTED_ROLES.fetch(@role, @role)
           end
 
           if role != EXPECTED_ROLES.fetch(@role, @role)