From 291cf6d8530f4e0ad2f22f199b5ae6975135bbb3 Mon Sep 17 00:00:00 2001
From: Siri Hansen <siri@erlang.org>
Date: Tue, 24 Apr 2018 15:18:31 +0200
Subject: Test cuddle for logger

---
 lib/stdlib/test/error_logger_h_SUITE.erl |  5 ++++-
 lib/stdlib/test/proc_lib_SUITE.erl       | 11 ++++++-----
 2 files changed, 10 insertions(+), 6 deletions(-)

(limited to 'lib/stdlib/test')

diff --git a/lib/stdlib/test/error_logger_h_SUITE.erl b/lib/stdlib/test/error_logger_h_SUITE.erl
index 9dc04f27a1..d533305939 100644
--- a/lib/stdlib/test/error_logger_h_SUITE.erl
+++ b/lib/stdlib/test/error_logger_h_SUITE.erl
@@ -62,6 +62,7 @@ logfile(Config) ->
     error_logger:logfile({open,Log}),
     ok = rpc:call(Node, erlang, apply, [fun gen_events/1,[Ev]]),
     AtNode = iolist_to_binary(["** at node ",atom_to_list(Node)," **"]),
+    timer:sleep(1000), % some time get all log events in the log
     error_logger:logfile(close),
     analyse_events(Log, Ev, [AtNode], unlimited),
 
@@ -124,6 +125,7 @@ tty(Config) ->
     ok = rpc:call(Node, erlang, apply, [fun gen_events/1,[Ev]]),
     tty_log_close(),
     AtNode = iolist_to_binary(["** at node ",atom_to_list(Node)," **"]),
+    timer:sleep(1000), % some time get all log events in the log
     analyse_events(Log, Ev, [AtNode], unlimited),
 
     test_server:stop_node(Node),
@@ -207,7 +209,7 @@ event_templates() ->
 gen_events(Ev) ->
     io:format("node = ~p\n", [node()]),
     io:format("group leader = ~p\n", [group_leader()]),
-    io:format("~p\n", [gen_event:which_handlers(error_logger)]),
+    io:format("~p\n", [error_logger:which_report_handlers()]),
     call_error_logger(Ev),
 
     {Pid,Ref} = spawn_monitor(fun() -> error(ouch) end),
@@ -240,6 +242,7 @@ analyse_events(Log, Ev, AtNode, Depth) ->
 
 call_error_logger([{F,Args}|T]) ->
     apply(error_logger, F, Args),
+    timer:sleep(10),
     call_error_logger(T);
 call_error_logger([]) -> ok.
 
diff --git a/lib/stdlib/test/proc_lib_SUITE.erl b/lib/stdlib/test/proc_lib_SUITE.erl
index fbdcb518b2..81bf9020b8 100644
--- a/lib/stdlib/test/proc_lib_SUITE.erl
+++ b/lib/stdlib/test/proc_lib_SUITE.erl
@@ -542,16 +542,17 @@ system_terminate(Reason,_Parent,_Deb,_State) ->
 
 
 t_format(_Config) ->
-    error_logger:tty(false),
+    logger:add_handler_filter(logger_std_h,stop_all,{fun(_,_) -> stop end,ok}),
+    error_logger:add_report_handler(?MODULE, self()),
     try
 	t_format()
     after
-	error_logger:tty(true)
+        error_logger:delete_report_handler(?MODULE),
+        logger:remove_handler_filter(logger_std_h,stop_all)
     end,
     ok.
 
 t_format() ->
-    error_logger:add_report_handler(?MODULE, self()),
     Pid = proc_lib:spawn(fun '\x{aaa}t_format_looper'/0),
     HugeData = gb_sets:from_list(lists:seq(1, 100)),
     SomeData1 = list_to_atom([246]),
@@ -584,11 +585,11 @@ t_format() ->
     ok.
 
 t_format_arbitrary(_Config) ->
-    error_logger:tty(false),
+    logger:add_handler_filter(logger_std_h,stop_all,{fun(_,_) -> stop end,ok}),
     try
         t_format_arbitrary()
     after
-        error_logger:tty(true)
+        logger:remove_handler_filter(logger_std_h,stop_all)
     end,
     ok.
 
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