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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) 2011-2020 VMware, Inc. or its affiliates. All rights reserved.
%%
-module(message_size_limit_SUITE).
-include_lib("common_test/include/ct.hrl").
-include_lib("kernel/include/file.hrl").
-include_lib("amqp_client/include/amqp_client.hrl").
-include_lib("eunit/include/eunit.hrl").
-compile(export_all).
-define(TIMEOUT_LIST_OPS_PASS, 5000).
-define(TIMEOUT, 30000).
-define(TIMEOUT_CHANNEL_EXCEPTION, 5000).
-define(CLEANUP_QUEUE_NAME, <<"cleanup-queue">>).
all() ->
[
{group, parallel_tests}
].
groups() ->
[
{parallel_tests, [parallel], [
max_message_size
]}
].
suite() ->
[
{timetrap, {minutes, 3}}
].
%% -------------------------------------------------------------------
%% Testsuite setup/teardown.
%% -------------------------------------------------------------------
init_per_suite(Config) ->
rabbit_ct_helpers:log_environment(),
rabbit_ct_helpers:run_setup_steps(Config).
end_per_suite(Config) ->
rabbit_ct_helpers:run_teardown_steps(Config).
init_per_group(Group, Config) ->
Config1 = rabbit_ct_helpers:set_config(Config, [
{rmq_nodename_suffix, Group},
{rmq_nodes_count, 1}
]),
rabbit_ct_helpers:run_steps(Config1,
rabbit_ct_broker_helpers:setup_steps() ++
rabbit_ct_client_helpers:setup_steps()).
end_per_group(_Group, Config) ->
rabbit_ct_helpers:run_steps(Config,
rabbit_ct_client_helpers:teardown_steps() ++
rabbit_ct_broker_helpers:teardown_steps()).
init_per_testcase(Testcase, Config) ->
rabbit_ct_helpers:testcase_started(Config, Testcase).
end_per_testcase(Testcase, Config) ->
rabbit_ct_helpers:testcase_finished(Config, Testcase).
%% -------------------------------------------------------------------
%% Test cases
%% -------------------------------------------------------------------
max_message_size(Config) ->
Binary2M = gen_binary_mb(2),
Binary4M = gen_binary_mb(4),
Binary6M = gen_binary_mb(6),
Binary10M = gen_binary_mb(10),
Size2Mb = 1024 * 1024 * 2,
Size2Mb = byte_size(Binary2M),
rabbit_ct_broker_helpers:rpc(Config, 0,
application, set_env, [rabbit, max_message_size, 1024 * 1024 * 3]),
{_, Ch} = rabbit_ct_client_helpers:open_connection_and_channel(Config, 0),
%% Binary is within the max size limit
amqp_channel:call(Ch, #'basic.publish'{routing_key = <<"none">>}, #amqp_msg{payload = Binary2M}),
%% The channel process is alive
assert_channel_alive(Ch),
Monitor = monitor(process, Ch),
amqp_channel:call(Ch, #'basic.publish'{routing_key = <<"none">>}, #amqp_msg{payload = Binary4M}),
assert_channel_fail_max_size(Ch, Monitor),
%% increase the limit
rabbit_ct_broker_helpers:rpc(Config, 0,
application, set_env, [rabbit, max_message_size, 1024 * 1024 * 8]),
{_, Ch1} = rabbit_ct_client_helpers:open_connection_and_channel(Config, 0),
amqp_channel:call(Ch1, #'basic.publish'{routing_key = <<"nope">>}, #amqp_msg{payload = Binary2M}),
assert_channel_alive(Ch1),
amqp_channel:call(Ch1, #'basic.publish'{routing_key = <<"nope">>}, #amqp_msg{payload = Binary4M}),
assert_channel_alive(Ch1),
amqp_channel:call(Ch1, #'basic.publish'{routing_key = <<"nope">>}, #amqp_msg{payload = Binary6M}),
assert_channel_alive(Ch1),
Monitor1 = monitor(process, Ch1),
amqp_channel:call(Ch1, #'basic.publish'{routing_key = <<"none">>}, #amqp_msg{payload = Binary10M}),
assert_channel_fail_max_size(Ch1, Monitor1),
%% increase beyond the hard limit
rabbit_ct_broker_helpers:rpc(Config, 0,
application, set_env, [rabbit, max_message_size, 1024 * 1024 * 600]),
Val = rabbit_ct_broker_helpers:rpc(Config, 0,
rabbit_channel, get_max_message_size, []),
?assertEqual(?MAX_MSG_SIZE, Val).
%% -------------------------------------------------------------------
%% Implementation
%% -------------------------------------------------------------------
gen_binary_mb(N) ->
B1M = << <<"_">> || _ <- lists:seq(1, 1024 * 1024) >>,
<< B1M || _ <- lists:seq(1, N) >>.
assert_channel_alive(Ch) ->
amqp_channel:call(Ch, #'basic.publish'{routing_key = <<"nope">>},
#amqp_msg{payload = <<"HI">>}).
assert_channel_fail_max_size(Ch, Monitor) ->
receive
{'DOWN', Monitor, process, Ch,
{shutdown,
{server_initiated_close, 406, _Error}}} ->
ok
after ?TIMEOUT_CHANNEL_EXCEPTION ->
error({channel_exception_expected, max_message_size})
end.
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