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authorSverker Eriksson <[email protected]>2018-02-13 11:59:09 +0100
committerSverker Eriksson <[email protected]>2018-02-13 11:59:09 +0100
commitdc0b345ae5374a422250c9d2e3bec63e6186afca (patch)
tree48a5e92b6ef5c327e7e3d0f15278069eaa7dd24c /lib/kernel/test/os_SUITE.erl
parentb1c7c64315ab93bb6fbed51664baf93ee8ee33f8 (diff)
parent309ef748ddc5bde4bcba280ce2739385f27a76e6 (diff)
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Merge branch 'maint-20' into maint
* maint-20: Updated OTP version Update release notes Update version numbers erts: Add system_flags(erts_alloc,"+M?sbct *") erts: Add age order first fit allocator strategies erts: Refactor erl_ao_firstfit_alloc erts: Add migration options "acnl" and "acfml" kernel: Add os:cmd/2 with max_size option erts: Add more stats for mbcs_pool erts: Fix alloc_SUITE:migration stdlib: Make ets_SUITE memory check try again erts: Improve carrier pool search erts: Improve alloc_SUITE:migration erts: Refactor carrier dealloc migration
Diffstat (limited to 'lib/kernel/test/os_SUITE.erl')
-rw-r--r--lib/kernel/test/os_SUITE.erl18
1 files changed, 16 insertions, 2 deletions
diff --git a/lib/kernel/test/os_SUITE.erl b/lib/kernel/test/os_SUITE.erl
index 53a9e168ef..079b9790f6 100644
--- a/lib/kernel/test/os_SUITE.erl
+++ b/lib/kernel/test/os_SUITE.erl
@@ -25,7 +25,8 @@
-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, close_stdin/0, close_stdin/1, perf_counter_api/1]).
+ message_leak/1, close_stdin/0, close_stdin/1, max_size_command/1,
+ perf_counter_api/1]).
-include_lib("common_test/include/ct.hrl").
@@ -37,7 +38,7 @@ 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,
- close_stdin, perf_counter_api].
+ close_stdin, max_size_command, perf_counter_api].
groups() ->
[].
@@ -312,6 +313,19 @@ close_stdin(Config) ->
"-1" = os:cmd(Fds).
+max_size_command(_Config) ->
+
+ Res20 = os:cmd("cat /dev/zero", #{ max_size => 20 }),
+ 20 = length(Res20),
+
+ Res0 = os:cmd("cat /dev/zero", #{ max_size => 0 }),
+ 0 = length(Res0),
+
+ Res32768 = os:cmd("cat /dev/zero", #{ max_size => 32768 }),
+ 32768 = length(Res32768),
+
+ ResHello = os:cmd("echo hello", #{ max_size => 20 }),
+ 6 = length(ResHello).
%% Test that the os:perf_counter api works as expected
perf_counter_api(_Config) ->