From ff65e1164cc16739c51c456b4e350e966cc2b1ef Mon Sep 17 00:00:00 2001
From: Hans Bolinder <hasse@erlang.org>
Date: Fri, 12 Jan 2018 16:43:55 +0100
Subject: stdlib: Handle Unicode when formatting stacktraces

See also ERL-553 and ERL-544 (commit c3ddb0f).
---
 erts/emulator/test/code_SUITE.erl | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

(limited to 'erts/emulator')

diff --git a/erts/emulator/test/code_SUITE.erl b/erts/emulator/test/code_SUITE.erl
index fcef070f08..661a2ee6c9 100644
--- a/erts/emulator/test/code_SUITE.erl
+++ b/erts/emulator/test/code_SUITE.erl
@@ -951,9 +951,14 @@ erl_544(Config) when is_list(Config) ->
                 receive Go -> ok end,
                 Res2 = process_info(Tester, current_stacktrace),
                 io:format("~p~n", [Res2]),
-                {current_stacktrace,
-                 [{Mod, wait, 2, Info2}|_]} = Res2,
+                {current_stacktrace, Stack} = Res2,
+                [{Mod, wait, 2, Info2}|_] = Stack,
                 File = proplists:get_value(file, Info2),
+                StackFun = fun(_, _, _) -> false end,
+                FormatFun = fun (Term, _) -> io_lib:format("~tp", [Term]) end,
+                Formated =
+                    lib:format_stacktrace(1, Stack, StackFun, FormatFun),
+                true = is_list(Formated),
                 ok
             after
                 ok = file:set_cwd(CWD)
-- 
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