%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1996-2013. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
-module(sys_SUITE).
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,log/1,log_to_file/1,
stats/1,trace/1,suspend/1,install/1]).
-export([handle_call/3,terminate/2,init/1]).
-include_lib("test_server/include/test_server.hrl").
-define(server,sys_SUITE_server).
%% Doesn't look into change_code at all
%% Doesn't address writing your own process that understands
%% system messages at all.
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[log, log_to_file, stats, trace, suspend, install].
groups() ->
[].
init_per_suite(Config) ->
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
log(suite) -> [];
log(Config) when is_list(Config) ->
{ok,_Server} = start(),
ok = sys:log(?server,true),
{ok,-44} = public_call(44),
ok = sys:log(?server,false),
ok = sys:log(?server,print),
stop(),
ok.
log_to_file(suite) -> [];
log_to_file(Config) when is_list(Config) ->
TempName = test_server:temp_name(?config(priv_dir,Config) ++ "sys."),
{ok,_Server} = start(),
ok = sys:log_to_file(?server,TempName),
{ok,-44} = public_call(44),
ok = sys:log_to_file(?server,false),
{ok,Fd} = file:open(TempName,[read]),
Msg1 = io:get_line(Fd,''),
Msg2 = io:get_line(Fd,''),
file:close(Fd),
lists:prefix("*DBG* sys_SUITE_server got call {req,44} from ",Msg1),
lists:prefix("*DBG* sys_SUITE_server sent {ok,-44} to ",Msg2),
stop(),
ok.
stats(suite) -> [];
stats(Config) when is_list(Config) ->
Self = self(),
{ok,_Server} = start(),
ok = sys:statistics(?server,true),
{ok,-44} = public_call(44),
{ok,Stats} = sys:statistics(?server,get),
lists:member({messages_in,1},Stats),
lists:member({messages_out,1},Stats),
ok = sys:statistics(?server,false),
{status,_Pid,{module,_Mod},[_PDict,running,Self,_,_]} =
sys:get_status(?server),
{ok,no_statistics} = sys:statistics(?server,get),
stop(),
ok.
trace(suite) -> [];
trace(Config) when is_list(Config) ->
{ok,_Server} = start(),
test_server:sleep(2000),
test_server:capture_start(),
sys:trace(?server,true),
{ok,-44} = public_call(44),
%% ho, hum, allow for the io to reach us..
test_server:sleep(1000),
test_server:capture_stop(),
[Msg1,Msg2] = test_server:capture_get(),
lists:prefix("*DBG* sys_SUITE_server got call {req,44} from ",Msg1),
lists:prefix("*DBG* sys_SUITE_server sent {ok,-44} to ",Msg2),
stop(),
ok.
suspend(suite) -> [];
suspend(Config) when is_list(Config) ->
?line {ok,_Server} = start(),
?line sys:suspend(?server,1000),
?line {'EXIT',_} = (catch public_call(48)),
?line {status,_,_,[_,suspended,_,_,_]} = sys:get_status(?server),
?line sys:suspend(?server,1000), %% doing it twice is no error
?line {'EXIT',_} = (catch public_call(48)),
?line sys:resume(?server),
?line {status,_,_,[_,running,_,_,_]} = sys:get_status(?server),
?line {ok,-48} = (catch public_call(48)),
?line sys:resume(?server), %% doing it twice is no error
?line {ok,-48} = (catch public_call(48)),
?line stop(),
ok.
install(suite) -> [];
install(Config) when is_list(Config) ->
?line {ok,_Server} = start(),
?line Master = self(),
?line SpyFun =
fun(func_state,Event,ProcState) ->
case Event of
{in,{'$gen_call',_From,{req,Arg}}} ->
io:format("Trigged\n"),
Master ! {spy_got,{request,Arg},ProcState};
Other ->
io:format("Trigged other=~p\n",[Other])
end
end,
?line sys:install(?server,{SpyFun,func_state}),
?line {ok,-1} = (catch public_call(1)),
?line sys:no_debug(?server),
?line {ok,-2} = (catch public_call(2)),
?line sys:install(?server,{SpyFun,func_state}),
?line sys:install(?server,{SpyFun,func_state}),
?line {ok,-3} = (catch public_call(3)),
?line sys:remove(?server,SpyFun),
?line {ok,-4} = (catch public_call(4)),
?line Msgs = test_server:messages_get(),
?line [{spy_got,{request,1},sys_SUITE_server},
{spy_got,{request,3},sys_SUITE_server}] = Msgs,
?line stop(),
ok.
%%%%%%%%%%%%%%%%%%%%
%% Dummy server
public_call(Arg) ->
gen_server:call(?server,{req,Arg},1000).
start() ->
gen_server:start_link({local,?server},?MODULE,[],[]).
stop() ->
gen_server:call(?server,stop,1000).
init([]) ->
{ok,0}.
handle_call({req,Arg},_From,State) ->
NewState = State+1,
{reply,{ok,-Arg},NewState};
handle_call(stop,_From,State) ->
{stop,normal,ok,State}.
terminate(_Reason, _State) ->
ok.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
