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%% This Source Code Form is subject to the terms of the Mozilla Public
%% License, v. 2.0. If a copy of the MPL was not distributed with this
%% file, You can obtain one at https://mozilla.org/MPL/2.0/.
%%
%% Copyright (c) 2007-2020 VMware, Inc. or its affiliates. All rights reserved.
%%
-module(reader_SUITE).
-compile([export_all]).
-include_lib("common_test/include/ct.hrl").
-include_lib("eunit/include/eunit.hrl").
all() ->
[
{group, non_parallel_tests}
].
groups() ->
[
{non_parallel_tests, [], [
block,
handle_invalid_frames,
stats
]}
].
suite() ->
[{timetrap, {seconds, 60}}].
%% -------------------------------------------------------------------
%% Testsuite setup/teardown.
%% -------------------------------------------------------------------
merge_app_env(Config) ->
rabbit_ct_helpers:merge_app_env(Config,
{rabbit, [
{collect_statistics, basic},
{collect_statistics_interval, 100}
]}).
init_per_suite(Config) ->
rabbit_ct_helpers:log_environment(),
Config1 = rabbit_ct_helpers:set_config(Config, [
{rmq_nodename_suffix, ?MODULE},
{rmq_extra_tcp_ports, [tcp_port_mqtt_extra,
tcp_port_mqtt_tls_extra]}
]),
rabbit_ct_helpers:run_setup_steps(Config1,
[ fun merge_app_env/1 ] ++
rabbit_ct_broker_helpers:setup_steps() ++
rabbit_ct_client_helpers:setup_steps()).
end_per_suite(Config) ->
rabbit_ct_helpers:run_teardown_steps(Config,
rabbit_ct_client_helpers:teardown_steps() ++
rabbit_ct_broker_helpers:teardown_steps()).
init_per_group(_, Config) ->
Config.
end_per_group(_, Config) ->
Config.
init_per_testcase(Testcase, Config) ->
rabbit_ct_helpers:testcase_started(Config, Testcase).
end_per_testcase(Testcase, Config) ->
rabbit_ct_helpers:testcase_finished(Config, Testcase).
%% -------------------------------------------------------------------
%% Testsuite cases
%% -------------------------------------------------------------------
block(Config) ->
P = rabbit_ct_broker_helpers:get_node_config(Config, 0, tcp_port_mqtt),
{ok, C} = emqttc:start_link([{host, "localhost"},
{port, P},
{client_id, <<"simpleClient">>},
{proto_ver, 3},
{logger, info},
{puback_timeout, 1}]),
%% Only here to ensure the connection is really up
emqttc:subscribe(C, <<"TopicA">>, qos0),
emqttc:publish(C, <<"TopicA">>, <<"Payload">>),
expect_publishes(<<"TopicA">>, [<<"Payload">>]),
emqttc:unsubscribe(C, [<<"TopicA">>]),
emqttc:subscribe(C, <<"Topic1">>, qos0),
%% Not blocked
{ok, _} = emqttc:sync_publish(C, <<"Topic1">>, <<"Not blocked yet">>,
[{qos, 1}]),
ok = rpc(Config, vm_memory_monitor, set_vm_memory_high_watermark, [0.00000001]),
ok = rpc(Config, rabbit_alarm, set_alarm, [{{resource_limit, memory, node()}, []}]),
%% Let it block
timer:sleep(100),
%% Blocked, but still will publish
{error, ack_timeout} = emqttc:sync_publish(C, <<"Topic1">>, <<"Now blocked">>,
[{qos, 1}]),
%% Blocked
{error, ack_timeout} = emqttc:sync_publish(C, <<"Topic1">>,
<<"Blocked">>, [{qos, 1}]),
rpc(Config, vm_memory_monitor, set_vm_memory_high_watermark, [0.4]),
rpc(Config, rabbit_alarm, clear_alarm, [{resource_limit, memory, node()}]),
%% Let alarms clear
timer:sleep(1000),
expect_publishes(<<"Topic1">>, [<<"Not blocked yet">>,
<<"Now blocked">>,
<<"Blocked">>]),
emqttc:disconnect(C).
handle_invalid_frames(Config) ->
N = rpc(Config, ets, info, [connection_metrics, size]),
P = rabbit_ct_broker_helpers:get_node_config(Config, 0, tcp_port_mqtt),
{ok, C} = gen_tcp:connect("localhost", P, []),
Bin = <<"GET / HTTP/1.1\r\nHost: www.rabbitmq.com\r\nUser-Agent: curl/7.43.0\r\nAccept: */*">>,
gen_tcp:send(C, Bin),
gen_tcp:close(C),
%% No new stats entries should be inserted as connection never got to initialize
N = rpc(Config, ets, info, [connection_metrics, size]).
stats(Config) ->
P = rabbit_ct_broker_helpers:get_node_config(Config, 0, tcp_port_mqtt),
%% CMN = rpc(Config, ets, info, [connection_metrics, size]),
%% CCMN = rpc(Config, ets, info, [connection_coarse_metrics, size]),
{ok, C} = emqttc:start_link([{host, "localhost"},
{port, P},
{client_id, <<"simpleClient">>},
{proto_ver, 3},
{logger, info},
{puback_timeout, 1}]),
%% Ensure that there are some stats
emqttc:subscribe(C, <<"TopicA">>, qos0),
emqttc:publish(C, <<"TopicA">>, <<"Payload">>),
expect_publishes(<<"TopicA">>, [<<"Payload">>]),
emqttc:unsubscribe(C, [<<"TopicA">>]),
timer:sleep(1000), %% Wait for stats to be emitted, which it does every 100ms
%% Retrieve the connection Pid
[{_, Reader}] = rpc(Config, rabbit_mqtt_collector, list, []),
[{_, Pid}] = rpc(Config, rabbit_mqtt_reader, info, [Reader, [connection]]),
%% Verify the content of the metrics, garbage_collection must be present
[{Pid, Props}] = rpc(Config, ets, lookup, [connection_metrics, Pid]),
true = proplists:is_defined(garbage_collection, Props),
%% If the coarse entry is present, stats were successfully emitted
[{Pid, _, _, _, _}] = rpc(Config, ets, lookup,
[connection_coarse_metrics, Pid]),
emqttc:disconnect(C).
expect_publishes(_Topic, []) -> ok;
expect_publishes(Topic, [Payload|Rest]) ->
receive
{publish, Topic, Payload} -> expect_publishes(Topic, Rest)
after 5000 ->
throw({publish_not_delivered, Payload})
end.
rpc(Config, M, F, A) ->
rabbit_ct_broker_helpers:rpc(Config, 0, M, F, A).
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