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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1996-2018. 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(kernel_config_SUITE).
-include_lib("common_test/include/ct.hrl").
-export([all/0, suite/0,groups/0,init_per_group/2,end_per_group/2,
start_distribution_false/1, sync/1]).
-export([init_per_suite/1, end_per_suite/1]).
suite() ->
[{ct_hooks,[ts_install_cth]},
{timetrap,{minutes,2}}].
all() ->
[sync, start_distribution_false].
groups() ->
[].
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
init_per_suite(Config) when is_list(Config) ->
Config.
end_per_suite(Config) when is_list(Config) ->
stop_node(init_test),
Config.
config(Fd) ->
M = from($@, atom_to_list(node())),
io:format(Fd, "[{kernel, [{sync_nodes_optional, ['cp1@~s','cp2@~s']},"
"{sync_nodes_timeout, 15000}]}].~n",
[M, M]).
from(H, [H | T]) -> T;
from(H, [_ | T]) -> from(H, T);
from(_, []) -> [].
%% Test sync_nodes. This is quite tricky.
%% Should be started in a CC view with:
%% erl -sname XXX where XX not in [cp1, cp2]
sync(Conf) when is_list(Conf) ->
%% Write a config file
Dir = proplists:get_value(priv_dir,Conf),
{ok, Fd} = file:open(Dir ++ "sys.config", [write]),
config(Fd),
file:close(Fd),
Config = Dir ++ "sys",
%% Reset wall_clock
{T1,_} = erlang:statistics(wall_clock),
io:format("~p~n", [{t1, T1}]),
Command = lists:append([ct:get_progname(),
" -detached -sname cp1 ",
"-config ", Config,
" -env ERL_CRASH_DUMP erl_crash_dump.cp1"]),
io:format("Command: ~s", [Command]),
open_port({spawn, Command}, [stream]),
io:format("started~n"),
ct:sleep(12000),
io:format("waited12~n"),
Host = from($@, atom_to_list(node())),
Cp1 = list_to_atom("cp1@"++Host),
wait_for_node(Cp1),
io:format("waitednode~n"),
%% Check time since last call
{TT, T} = erlang:statistics(wall_clock),
io:format("~p~n", [{t2, {TT, T}}]),
stop_node(cp1),
if
TT-T1 < 15000 -> ct:fail({too_short_time, TT-T1});
true -> ok
end,
ok.
wait_for_node(Node) ->
case rpc:call(Node, init, get_status, []) of
{started,_} -> ok;
{badrpc, R} -> ct:fail({rpc_failed, R});
_Other -> wait_for_node(Node)
end.
stop_node(Node) ->
M = list_to_atom(lists:concat([Node,
[$@],
from($@,atom_to_list(node()))])),
rpc:cast(M, erlang, halt, []).
start_distribution_false(Config) when is_list(Config) ->
%% When distribution is disabled, -sname/-name has no effect
Str = os:cmd(ct:get_progname()
++ " -kernel start_distribution false"
++ " -sname no_distribution"
++ " -eval \"erlang:display(node())\""
++ " -noshell -s erlang halt"),
"'nonode@nohost'" ++ _ = Str,
ok.
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