anchor.diff:      OZDomain = ?config(oz_domain, Config),
   
       Records = [
  -        {txt, static_txt_records,
  +        {txt, dns_static_txt_records,
               [{<<"txt">>, <<"txt-value">>}],
               {"txt." ++ OZDomain, [["txt-value"]]}},
  -        {a, static_a_records,
  +        {a, dns_static_a_records,
               [{<<"a">>, ?PROVIDER_IPS1}], {"a." ++ OZDomain, ?PROVIDER_IPS1}},
  -        {mx, static_mx_records,
  +        {mx, dns_static_mx_records,
               [{<<"mx">>, <<"mx-value">>, 10}],
               {"mx." ++ OZDomain, [{10, "mx-value"}]}
               },
  -        {cname, static_cname_records,
  +        {cname, dns_static_cname_records,
               [{<<"cname">>, <<"cname-value">>}],
               {"cname." ++ OZDomain, ["cname-value"]}
           },
  -        {ns, static_ns_records,
  +        {ns, dns_static_ns_records,
               [{<<"ns">>, [<<"ns1-value">>, <<"ns2-value">>]}],
               {"ns."++OZDomain, ["ns1-value", "ns2-value"]}}
       ],
   
       lists:foreach(fun({_, Env, Entries, _}) ->
  -        set_dns_config(Config, Env, Entries)
  +        set_env(Config, Env, Entries)
       end, Records),
       ?assertEqual(ok, oz_test_utils:call_oz(Config,
           node_manager_plugin, reconcile_dns_config, [])),
  
positive.code: %% Adds property to the dns config proplist.
  %% @end
  %%--------------------------------------------------------------------
  -spec set_dns_config(Config :: term(), Key :: term(), Value :: term()) -> ok.
  set_dns_config(Config, Key, Value) ->
      OldConfig = oz_test_utils:call_oz(Config,
          oz_worker, get_env, [dns, []]),
      Nodes = ?config(oz_worker_nodes, Config),
      test_utils:set_env(Nodes, ?APP_NAME, dns,
          lists:keystore(Key, 1, OldConfig, {Key, Value})).
  
negative.code:         Config, ProviderId, SubdomainBin, ProviderIPs1),
  
      % subdomain is set as static entry statically
      set_env(Config, dns_static_a_records, [{SubdomainBin, StaticIPs}]),
  
      % DNS update is sent
      ?assertEqual(ok, oz_test_utils:call_oz(Config,
  