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emqx_client_SUITE.erl
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emqx_client_SUITE.erl
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%%--------------------------------------------------------------------
%% Copyright (c) 2018-2021 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_client_SUITE).
-compile(export_all).
-compile(nowarn_export_all).
-import(lists, [nth/2]).
-include_lib("emqx/include/emqx_mqtt.hrl").
-include_lib("eunit/include/eunit.hrl").
-include_lib("common_test/include/ct.hrl").
-define(TOPICS, [<<"TopicA">>,
<<"TopicA/B">>,
<<"Topic/C">>,
<<"TopicA/C">>,
<<"/TopicA">>
]).
-define(WILD_TOPICS, [<<"TopicA/+">>,
<<"+/C">>,
<<"#">>,
<<"/#">>,
<<"/+">>,
<<"+/+">>,
<<"TopicA/#">>
]).
all() ->
[{group, mqttv3},
{group, mqttv4},
{group, mqttv5},
{group, others}
].
groups() ->
[{mqttv3, [non_parallel_tests],
[t_basic_v3
]},
{mqttv4, [non_parallel_tests],
[t_basic_v4,
t_cm,
t_cm_registry,
%% t_will_message,
%% t_offline_message_queueing,
t_overlapping_subscriptions,
%% t_keepalive,
%% t_redelivery_on_reconnect,
%% subscribe_failure_test,
t_dollar_topics
]},
{mqttv5, [non_parallel_tests],
[t_basic_with_props_v5
]},
{others, [non_parallel_tests],
[t_username_as_clientid,
t_certcn_as_clientid_default_config_tls,
t_certcn_as_clientid_tlsv1_3,
t_certcn_as_clientid_tlsv1_2
]}
].
init_per_suite(Config) ->
emqx_ct_helpers:boot_modules(all),
emqx_ct_helpers:start_apps([], fun set_special_confs/1),
Config.
end_per_suite(_Config) ->
emqx_ct_helpers:stop_apps([]).
set_special_confs(emqx) ->
emqx_ct_helpers:change_emqx_opts(ssl_twoway, [{peer_cert_as_username, cn}]);
set_special_confs(_) ->
ok.
%%--------------------------------------------------------------------
%% Test cases for MQTT v3
%%--------------------------------------------------------------------
t_basic_v3(_) ->
t_basic([{proto_ver, v3}]).
%%--------------------------------------------------------------------
%% Test cases for MQTT v4
%%--------------------------------------------------------------------
t_basic_v4(_Config) ->
t_basic([{proto_ver, v4}]).
t_cm(_) ->
IdleTimeout = emqx_zone:get_env(external, idle_timeout, 30000),
emqx_zone:set_env(external, idle_timeout, 1000),
ClientId = <<"myclient">>,
{ok, C} = emqtt:start_link([{clientid, ClientId}]),
{ok, _} = emqtt:connect(C),
ct:sleep(500),
#{clientinfo := #{clientid := ClientId}} = emqx_cm:get_chan_info(ClientId),
emqtt:subscribe(C, <<"mytopic">>, 0),
ct:sleep(1200),
Stats = emqx_cm:get_chan_stats(ClientId),
?assertEqual(1, proplists:get_value(subscriptions_cnt, Stats)),
emqx_zone:set_env(external, idle_timeout, IdleTimeout).
t_cm_registry(_) ->
Info = supervisor:which_children(emqx_cm_sup),
{_, Pid, _, _} = lists:keyfind(registry, 1, Info),
ignored = gen_server:call(Pid, <<"Unexpected call">>),
gen_server:cast(Pid, <<"Unexpected cast">>),
Pid ! <<"Unexpected info">>.
t_will_message(_Config) ->
{ok, C1} = emqtt:start_link([{clean_start, true},
{will_topic, nth(3, ?TOPICS)},
{will_payload, <<"client disconnected">>},
{keepalive, 1}]),
{ok, _} = emqtt:connect(C1),
{ok, C2} = emqtt:start_link(),
{ok, _} = emqtt:connect(C2),
{ok, _, [2]} = emqtt:subscribe(C2, nth(3, ?TOPICS), 2),
timer:sleep(5),
ok = emqtt:stop(C1),
timer:sleep(5),
?assertEqual(1, length(recv_msgs(1))),
ok = emqtt:disconnect(C2),
ct:pal("Will message test succeeded").
t_offline_message_queueing(_) ->
{ok, C1} = emqtt:start_link([{clean_start, false},
{clientid, <<"c1">>}]),
{ok, _} = emqtt:connect(C1),
{ok, _, [2]} = emqtt:subscribe(C1, nth(6, ?WILD_TOPICS), 2),
ok = emqtt:disconnect(C1),
{ok, C2} = emqtt:start_link([{clean_start, true},
{clientid, <<"c2">>}]),
{ok, _} = emqtt:connect(C2),
ok = emqtt:publish(C2, nth(2, ?TOPICS), <<"qos 0">>, 0),
{ok, _} = emqtt:publish(C2, nth(3, ?TOPICS), <<"qos 1">>, 1),
{ok, _} = emqtt:publish(C2, nth(4, ?TOPICS), <<"qos 2">>, 2),
timer:sleep(10),
emqtt:disconnect(C2),
{ok, C3} = emqtt:start_link([{clean_start, false}, {clientid, <<"c1">>}]),
{ok, _} = emqtt:connect(C3),
timer:sleep(10),
emqtt:disconnect(C3),
?assertEqual(3, length(recv_msgs(3))).
t_overlapping_subscriptions(_) ->
{ok, C} = emqtt:start_link([]),
{ok, _} = emqtt:connect(C),
{ok, _, [2, 1]} = emqtt:subscribe(C, [{nth(7, ?WILD_TOPICS), 2},
{nth(1, ?WILD_TOPICS), 1}]),
timer:sleep(10),
{ok, _} = emqtt:publish(C, nth(4, ?TOPICS), <<"overlapping topic filters">>, 2),
timer:sleep(10),
Num = length(recv_msgs(2)),
?assert(lists:member(Num, [1, 2])),
if
Num == 1 ->
ct:pal("This server is publishing one message for all
matching overlapping subscriptions, not one for each.");
Num == 2 ->
ct:pal("This server is publishing one message per each
matching overlapping subscription.");
true -> ok
end,
emqtt:disconnect(C).
%% t_keepalive_test(_) ->
%% ct:print("Keepalive test starting"),
%% {ok, C1, _} = emqtt:start_link([{clean_start, true},
%% {keepalive, 5},
%% {will_flag, true},
%% {will_topic, nth(5, ?TOPICS)},
%% %% {will_qos, 2},
%% {will_payload, <<"keepalive expiry">>}]),
%% ok = emqtt:pause(C1),
%% {ok, C2, _} = emqtt:start_link([{clean_start, true},
%% {keepalive, 0}]),
%% {ok, _, [2]} = emqtt:subscribe(C2, nth(5, ?TOPICS), 2),
%% ok = emqtt:disconnect(C2),
%% ?assertEqual(1, length(recv_msgs(1))),
%% ct:print("Keepalive test succeeded").
t_redelivery_on_reconnect(_) ->
ct:pal("Redelivery on reconnect test starting"),
{ok, C1} = emqtt:start_link([{clean_start, false}, {clientid, <<"c">>}]),
{ok, _} = emqtt:connect(C1),
{ok, _, [2]} = emqtt:subscribe(C1, nth(7, ?WILD_TOPICS), 2),
timer:sleep(10),
ok = emqtt:pause(C1),
{ok, _} = emqtt:publish(C1, nth(2, ?TOPICS), <<>>,
[{qos, 1}, {retain, false}]),
{ok, _} = emqtt:publish(C1, nth(4, ?TOPICS), <<>>,
[{qos, 2}, {retain, false}]),
timer:sleep(10),
ok = emqtt:disconnect(C1),
?assertEqual(0, length(recv_msgs(2))),
{ok, C2} = emqtt:start_link([{clean_start, false}, {clientid, <<"c">>}]),
{ok, _} = emqtt:connect(C2),
timer:sleep(10),
ok = emqtt:disconnect(C2),
?assertEqual(2, length(recv_msgs(2))).
%% t_subscribe_sys_topics(_) ->
%% ct:print("Subscribe failure test starting"),
%% {ok, C, _} = emqtt:start_link([]),
%% {ok, _, [2]} = emqtt:subscribe(C, <<"$SYS/#">>, 2),
%% timer:sleep(10),
%% ct:print("Subscribe failure test succeeded").
t_dollar_topics(_) ->
ct:pal("$ topics test starting"),
{ok, C} = emqtt:start_link([{clean_start, true},
{keepalive, 0}]),
{ok, _} = emqtt:connect(C),
{ok, _, [1]} = emqtt:subscribe(C, nth(6, ?WILD_TOPICS), 1),
{ok, _} = emqtt:publish(C, << <<"$">>/binary, (nth(2, ?TOPICS))/binary>>,
<<"test">>, [{qos, 1}, {retain, false}]),
timer:sleep(10),
?assertEqual(0, length(recv_msgs(1))),
ok = emqtt:disconnect(C),
ct:pal("$ topics test succeeded").
%%--------------------------------------------------------------------
%% Test cases for MQTT v5
%%--------------------------------------------------------------------
t_basic_with_props_v5(_) ->
t_basic([{proto_ver, v5},
{properties, #{'Receive-Maximum' => 4}}
]).
%%--------------------------------------------------------------------
%% General test cases.
%%--------------------------------------------------------------------
t_basic(_Opts) ->
Topic = nth(1, ?TOPICS),
{ok, C} = emqtt:start_link([{proto_ver, v4}]),
{ok, _} = emqtt:connect(C),
{ok, _, [1]} = emqtt:subscribe(C, Topic, qos1),
{ok, _, [2]} = emqtt:subscribe(C, Topic, qos2),
{ok, _} = emqtt:publish(C, Topic, <<"qos 2">>, 2),
{ok, _} = emqtt:publish(C, Topic, <<"qos 2">>, 2),
{ok, _} = emqtt:publish(C, Topic, <<"qos 2">>, 2),
?assertEqual(3, length(recv_msgs(3))),
ok = emqtt:disconnect(C).
t_username_as_clientid(_) ->
emqx_zone:set_env(external, use_username_as_clientid, true),
Username = <<"usera">>,
{ok, C} = emqtt:start_link([{username, Username}]),
{ok, _} = emqtt:connect(C),
#{clientinfo := #{clientid := Username}} = emqx_cm:get_chan_info(Username),
emqtt:disconnect(C).
t_certcn_as_clientid_default_config_tls(_) ->
tls_certcn_as_clientid(default).
t_certcn_as_clientid_tlsv1_3(_) ->
tls_certcn_as_clientid('tlsv1.3').
t_certcn_as_clientid_tlsv1_2(_) ->
tls_certcn_as_clientid('tlsv1.2').
%%--------------------------------------------------------------------
%% Helper functions
%%--------------------------------------------------------------------
recv_msgs(Count) ->
recv_msgs(Count, []).
recv_msgs(0, Msgs) ->
Msgs;
recv_msgs(Count, Msgs) ->
receive
{publish, Msg} ->
recv_msgs(Count-1, [Msg|Msgs]);
_Other -> recv_msgs(Count, Msgs) %%TODO:: remove the branch?
after 100 ->
Msgs
end.
confirm_tls_version( Client, RequiredProtocol ) ->
Info = emqtt:info(Client),
SocketInfo = proplists:get_value( socket, Info ),
%% emqtt_sock has #ssl_socket.ssl
SSLSocket = element( 3, SocketInfo ),
{ ok, SSLInfo } = ssl:connection_information(SSLSocket),
Protocol = proplists:get_value( protocol, SSLInfo ),
RequiredProtocol = Protocol.
tls_certcn_as_clientid(default = TLSVsn) ->
tls_certcn_as_clientid(TLSVsn, 'tlsv1.3');
tls_certcn_as_clientid(TLSVsn) ->
tls_certcn_as_clientid(TLSVsn, TLSVsn).
tls_certcn_as_clientid(TLSVsn, RequiredTLSVsn) ->
CN = <<"Client">>,
emqx_zone:set_env(external, use_username_as_clientid, true),
SslConf = emqx_ct_helpers:client_ssl_twoway(TLSVsn),
{ok, Client} = emqtt:start_link([{port, 8883}, {ssl, true}, {ssl_opts, SslConf}]),
{ok, _} = emqtt:connect(Client),
#{clientinfo := #{clientid := CN}} = emqx_cm:get_chan_info(CN),
confirm_tls_version( Client, RequiredTLSVsn ),
emqtt:disconnect(Client).