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-rw-r--r--lib/kernel/test/os_SUITE.erl19
1 files changed, 15 insertions, 4 deletions
diff --git a/lib/kernel/test/os_SUITE.erl b/lib/kernel/test/os_SUITE.erl
index b9ddc3bf48..3cbb75a633 100644
--- a/lib/kernel/test/os_SUITE.erl
+++ b/lib/kernel/test/os_SUITE.erl
@@ -25,7 +25,7 @@
-export([space_in_cwd/1, quoting/1, cmd_unicode/1, space_in_name/1, bad_command/1,
find_executable/1, unix_comment_in_command/1, deep_list_command/1,
large_output_command/1, background_command/0, background_command/1,
- message_leak/1, perf_counter_api/1]).
+ message_leak/1, close_stdin/0, close_stdin/1, perf_counter_api/1]).
-include_lib("common_test/include/ct.hrl").
@@ -37,7 +37,7 @@ all() ->
[space_in_cwd, quoting, cmd_unicode, space_in_name, bad_command,
find_executable, unix_comment_in_command, deep_list_command,
large_output_command, background_command, message_leak,
- perf_counter_api].
+ close_stdin, perf_counter_api].
groups() ->
[].
@@ -54,7 +54,8 @@ init_per_group(_GroupName, Config) ->
end_per_group(_GroupName, Config) ->
Config.
-init_per_testcase(background_command, Config) ->
+init_per_testcase(TC, Config)
+ when TC =:= background_command; TC =:= close_stdin ->
case os:type() of
{win32, _} ->
{skip,"Should not work on windows"};
@@ -294,7 +295,7 @@ message_leak(_Config) ->
case os:type() of
{unix, _} ->
- os:cmd("while true; do echo hello; done&"),
+ os:cmd("for i in $(seq 1 100); do echo hello; done&"),
[] = receive_all();
_ ->
ok % Cannot background on non-unix
@@ -302,6 +303,16 @@ message_leak(_Config) ->
process_flag(trap_exit, false).
+%% Test that os:cmd closes stdin of the program that is executed
+close_stdin() ->
+ [{timetrap, {seconds, 5}}].
+close_stdin(Config) ->
+ DataDir = proplists:get_value(data_dir, Config),
+ Fds = filename:join(DataDir, "my_fds"),
+
+ "-1" = os:cmd(Fds).
+
+
%% Test that the os:perf_counter api works as expected
perf_counter_api(_Config) ->