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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/.
%%
%% The Initial Developer of the Original Code is AWeber Communications.
%% Copyright (c) 2015-2016 AWeber Communications
%% Copyright (c) 2016-2020 VMware, Inc. or its affiliates. All rights reserved.
%%
-module(system_SUITE).
-compile(export_all).
-include_lib("common_test/include/ct.hrl").
-include_lib("eunit/include/eunit.hrl").
-include("rabbit_peer_discovery_etcd.hrl").
-import(rabbit_data_coercion, [to_binary/1, to_integer/1]).
all() ->
[
{group, v3_client}
].
groups() ->
[
{v3_client, [], [
etcd_connection_sanity_check_test,
init_opens_a_connection_test,
registration_with_locking_test
]}
].
init_per_suite(Config) ->
rabbit_ct_helpers:log_environment(),
rabbit_ct_helpers:run_setup_steps(Config, [fun init_etcd/1]).
end_per_suite(Config) ->
rabbit_ct_helpers:run_teardown_steps(Config, [fun stop_etcd/1]).
init_etcd(Config) ->
DataDir = ?config(data_dir, Config),
PrivDir = ?config(priv_dir, Config),
TcpPort = 25389,
EtcdDir = filename:join([PrivDir, "etcd"]),
InitEtcd = filename:join([DataDir, "init-etcd.sh"]),
Cmd = [InitEtcd, EtcdDir, {"~b", [TcpPort]}],
case rabbit_ct_helpers:exec(Cmd) of
{ok, Stdout} ->
case re:run(Stdout, "^ETCD_PID=([0-9]+)$", [{capture, all_but_first, list}, multiline]) of
{match, [EtcdPid]} ->
ct:pal(?LOW_IMPORTANCE, "etcd PID: ~s~netcd is listening on: ~b", [EtcdPid, TcpPort]),
rabbit_ct_helpers:set_config(Config, [{etcd_pid, EtcdPid},
{etcd_endpoints, [rabbit_misc:format("localhost:~p", [TcpPort])]},
{etcd_port, TcpPort}]);
nomatch ->
ct:pal(?HI_IMPORTANCE, "init-etcd.sh output did not match what's expected: ~p", [Stdout])
end;
{error, Code, Reason} ->
ct:pal(?HI_IMPORTANCE, "init-etcd.sh exited with code ~p: ~p", [Code, Reason]),
_ = rabbit_ct_helpers:exec(["pkill", "-INT", "etcd"]),
{skip, "Failed to initialize etcd"}
end.
stop_etcd(Config) ->
EtcdPid = ?config(etcd_pid, Config),
Cmd = ["kill", "-INT", EtcdPid],
_ = rabbit_ct_helpers:exec(Cmd),
Config.
%%
%% Test cases
%%
etcd_connection_sanity_check_test(Config) ->
application:ensure_all_started(eetcd),
Endpoints = ?config(etcd_endpoints, Config),
?assertMatch({ok, _Pid}, eetcd:open(test, Endpoints)),
Condition1 = fun() ->
1 =:= length(eetcd_conn_sup:info())
end,
try
rabbit_ct_helpers:await_condition(Condition1, 60000)
after
eetcd:close(test)
end,
Condition2 = fun() ->
0 =:= length(eetcd_conn_sup:info())
end,
rabbit_ct_helpers:await_condition(Condition2, 60000).
init_opens_a_connection_test(Config) ->
Endpoints = ?config(etcd_endpoints, Config),
{ok, Pid} = start_client(Endpoints),
Condition = fun() ->
1 =:= length(eetcd_conn_sup:info())
end,
try
rabbit_ct_helpers:await_condition(Condition, 90000)
after
gen_statem:stop(Pid)
end,
?assertEqual(0, length(eetcd_conn_sup:info())).
registration_with_locking_test(Config) ->
Endpoints = ?config(etcd_endpoints, Config),
{ok, Pid} = start_client(Endpoints),
Condition1 = fun() ->
1 =:= length(eetcd_conn_sup:info())
end,
rabbit_ct_helpers:await_condition(Condition1, 90000),
{ok, LockOwnerKey} = rabbitmq_peer_discovery_etcd_v3_client:lock(Pid, node()),
rabbitmq_peer_discovery_etcd_v3_client:register(Pid),
?assertEqual(ok, rabbitmq_peer_discovery_etcd_v3_client:unlock(Pid, LockOwnerKey)),
Condition2 = fun() ->
[node()] =:= rabbitmq_peer_discovery_etcd_v3_client:list_nodes(Pid)
end,
try
rabbit_ct_helpers:await_condition(Condition2, 45000)
after
gen_statem:stop(Pid)
end.
%%
%% Helpers
%%
start_client(Endpoints) ->
case rabbitmq_peer_discovery_etcd_v3_client:start(#{endpoints => Endpoints}) of
{ok, Pid} ->
{ok, Pid};
{error, {already_started, Pid}} ->
{ok, Pid}
end.
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