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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2012. All Rights Reserved.
%%
%% Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% %CopyrightEnd%
%%
-module(test_server_break_SUITE).
-export([all/1, init_per_suite/1, end_per_suite/1]).
-export([init_per_testcase/2, end_per_testcase/2]).
-export([break_in_init_tc/1,
break_in_tc/1,
break_in_end_tc/1,
break_in_end_tc_after_fail/1,
break_in_end_tc_after_abort/1,
check_all_breaks/1]).
-include_lib("common_test/include/ct.hrl").
all(suite) ->
[break_in_init_tc,
break_in_tc,
break_in_end_tc,
break_in_end_tc_after_fail,
break_in_end_tc_after_abort,
check_all_breaks]. %must be the last test - checks result of previous tests
init_per_suite(Config) ->
spawn(fun break_and_continue_sup/0),
Config.
end_per_suite(_Config) ->
ok.
init_per_testcase(Case,Config) when Case==break_in_init_tc ->
Config1 = init_timetrap(500,Config),
break_and_check(Case),
Config1;
init_per_testcase(Case,Config) when Case==check_all_breaks ->
init_timetrap({seconds,20},Config);
init_per_testcase(_Case,Config) ->
init_timetrap(500,Config).
init_timetrap(T,Config) ->
Dog = ?t:timetrap(T),
[{watchdog, Dog}|Config].
end_per_testcase(Case,Config) when Case==break_in_end_tc;
Case==break_in_end_tc_after_fail;
Case==break_in_end_tc_after_abort ->
break_and_check(Case),
cancel_timetrap(Config);
end_per_testcase(_Case,Config) ->
cancel_timetrap(Config).
cancel_timetrap(Config) ->
Dog=?config(watchdog, Config),
?t:timetrap_cancel(Dog),
ok.
%%%-----------------------------------------------------------------
%%% Test cases
break_in_init_tc(Config) when is_list(Config) ->
ok.
break_in_tc(Config) when is_list(Config) ->
break_and_check(break_in_tc),
ok.
break_in_end_tc(Config) when is_list(Config) ->
ok.
break_in_end_tc_after_fail(Config) when is_list(Config) ->
?t:fail(test_case_should_fail).
break_in_end_tc_after_abort(Config) when is_list(Config) ->
?t:adjusted_sleep(2000). % will cause a timetrap timeout
%% This test case checks that all breaks in previous test cases was
%% also continued, and that the break lasted as long as expected.
%% The reason for this is that some of the breaks above are in
%% end_per_testcase, and failures there will only produce a warning,
%% not an error - so this is to catch the error for real.
check_all_breaks(Config) when is_list(Config) ->
break_and_continue_sup ! {done,self()},
receive {Breaks,Continued} ->
check_all_breaks(Breaks,Continued)
end.
%%%-----------------------------------------------------------------
%%% Internal functions
check_all_breaks([{From,Case,T,Start}|Breaks],[{From,End}|Continued]) ->
Diff = timer:now_diff(End,Start),
DiffSec = round(Diff/1000000),
TSec = round(T/1000000),
if DiffSec==TSec ->
?t:format("Break in ~p successfully continued after ~p second(s)~n",
[Case,DiffSec]),
check_all_breaks(Breaks,Continued);
true ->
?t:format("Faulty duration of break in ~p: continued after ~p second(s)~n",
[Case,DiffSec]),
?t:fail({faulty_diff,Case,DiffSec,TSec})
end;
check_all_breaks([],[]) ->
ok;
check_all_breaks(Breaks,Continued) ->
%% This is probably a case of a missing continue - i.e. a break
%% has been started, but it was never continued.
?t:fail({no_match_in_breaks_and_continued,Breaks,Continued}).
break_and_check(Case) ->
break_and_continue_sup ! {break,Case,1000,self()},
?t:break(atom_to_list(Case)),
break_and_continue_sup ! {continued,self()},
ok.
break_and_continue_sup() ->
register(break_and_continue_sup,self()),
break_and_continue_loop([],[]).
break_and_continue_loop(Breaks,Continued) ->
receive
{break,Case,T,From} ->
Start = now(),
{RealT,_} = timer:tc(?t,adjusted_sleep,[T]),
?t:continue(),
break_and_continue_loop([{From,Case,RealT,Start}|Breaks],Continued);
{continued,From} ->
break_and_continue_loop(Breaks,[{From,now()}|Continued]);
{done,From} ->
From ! {lists:reverse(Breaks),lists:reverse(Continued)}
end.
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