emqx/test/emqx_misc_tests.erl

83 lines
2.5 KiB
Erlang

%% Copyright (c) 2013-2019 EMQ Technologies Co., Ltd. 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.
-module(emqx_misc_tests).
-include_lib("eunit/include/eunit.hrl").
-define(SOCKOPTS, [binary,
{packet, raw},
{reuseaddr, true},
{backlog, 512},
{nodelay, true}]).
t_merge_opts_test() ->
Opts = emqx_misc:merge_opts(?SOCKOPTS, [raw,
binary,
{backlog, 1024},
{nodelay, false},
{max_clients, 1024},
{acceptors, 16}]),
?assertEqual(1024, proplists:get_value(backlog, Opts)),
?assertEqual(1024, proplists:get_value(max_clients, Opts)),
[binary, raw,
{acceptors, 16},
{backlog, 1024},
{max_clients, 1024},
{nodelay, false},
{packet, raw},
{reuseaddr, true}] = lists:sort(Opts).
timer_cancel_flush_test() ->
Timer = emqx_misc:start_timer(0, foo),
ok = emqx_misc:cancel_timer(Timer),
receive {timeout, Timer, foo} -> error(unexpected)
after 0 -> ok
end.
shutdown_disabled_test() ->
ok = drain(),
self() ! foo,
?assertEqual(continue, conn_proc_mng_policy(0)),
receive foo -> ok end,
?assertEqual(hibernate, conn_proc_mng_policy(0)).
message_queue_too_long_test() ->
ok = drain(),
self() ! foo,
self() ! bar,
?assertEqual({shutdown, message_queue_too_long},
conn_proc_mng_policy(1)),
receive foo -> ok end,
?assertEqual(continue, conn_proc_mng_policy(1)),
receive bar -> ok end.
conn_proc_mng_policy(L) ->
emqx_misc:conn_proc_mng_policy(#{message_queue_len => L}).
%% drain self() msg queue for deterministic test behavior
drain() ->
_ = drain([]), % maybe log
ok.
drain(Acc) ->
receive
Msg ->
drain([Msg | Acc])
after
0 ->
lists:reverse(Acc)
end.