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%% Copyright (c) 2019, Loïc Hoguin <[email protected]>
%%
%% Permission to use, copy, modify, and/or distribute this software for any
%% purpose with or without fee is hereby granted, provided that the above
%% copyright notice and this permission notice appear in all copies.
%%
%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-module(havoc_SUITE).
-compile(export_all).
-compile(nowarn_export_all).
-import(ct_helper, [doc/1]).
-import(ct_helper, [name/0]).
%% ct.
all() ->
ct_helper:all(?MODULE).
init_per_suite(Config) ->
{ok, _} = application:ensure_all_started(ranch),
ok = application:start(havoc),
%% Comment to hide progress reports in the terminal.
application:set_env(kernel, logger_sasl_compatible, true),
%% Enable logging of progress reports.
%% They will only be available in the HTML reports by default.
ok = logger:set_primary_config(level, info),
Config.
end_per_suite(_) ->
ok = application:stop(havoc),
ok = application:stop(ranch).
%% Tests.
havoc_tcp(_) ->
doc("Start a TCP listener, establish a hundred connections, "
"run havoc, confirm we can still connect."),
%% Start a TCP listener.
Name = name(),
{ok, _} = ranch:start_listener(Name,
ranch_tcp, #{},
echo_protocol, []),
Port1 = ranch:get_port(Name),
%% Establish a hundred connections.
_ = [begin
{ok, Socket} = gen_tcp:connect("localhost", Port1, [{active, false}]),
Socket
end || _ <- lists:seq(1, 100)],
%% Run Havoc.
LogFun = fun
(Pid) when is_pid(Pid) ->
logger:info("~p~n", [erlang:process_info(Pid)]);
(Port) when is_port(Port) ->
logger:info("~p~n", [erlang:port_info(Port)])
end,
havoc:on([{applications, [ranch]}, {prekill_callback, LogFun}]),
timer:sleep(60000),
havoc:off(),
timer:sleep(1000),
%% Confirm we can still connect.
Port2 = ranch:get_port(Name),
{ok, _} = gen_tcp:connect("localhost", Port2, [{active, false}]),
ok = ranch:stop_listener(Name).
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