Return relative total as 100%

Author: Diana Corbacho

src/rabbit_mgmt_wm_node_memory.erl

@@ -81,7 +81,7 @@ format(relative, Result) ->
     {[{total, Total}], Rest} = lists:splitwith(fun({Key, _}) ->
                                                        Key == total
                                                end, Result),
-    [{total, Total} | [{K, percentage(V, Total)} || {K, V} <- Rest]].
+    [{total, 100} | [{K, percentage(V, Total)} || {K, V} <- Rest]].
 
 percentage(Part, Total) ->
     case round((Part/Total) * 100) of

test/src/rabbit_mgmt_test_http.erl

@@ -121,6 +121,7 @@ memory_test() ->
     assert_keys([memory], Result1),
     Breakdown = pget(memory, Result1),
     assert_keys(Keys, Breakdown),
+    assert_item([{total, 100}], Breakdown),
     assert_percentage(Breakdown),
     http_get("/nodes/nonode/memory/relative", ?NOT_FOUND),
     ok.