mirror of
https://github.com/fluxerapp/fluxer
synced 2026-10-18 05:25:40 +09:00
96 lines
2.7 KiB
Erlang
96 lines
2.7 KiB
Erlang
%% SPDX-License-Identifier: AGPL-3.0-or-later
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-module(process_registry_tests).
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-typing([eqwalizer]).
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-include_lib("eunit/include/eunit.hrl").
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-define(REGISTRY_TABLE, process_registry_table).
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register_and_monitor_race_condition_test() ->
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process_registry:init(),
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Key = {test_reg, 1003},
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ProcessMap = #{},
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WinnerPid = spawn_sleep(200),
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ets:insert(?REGISTRY_TABLE, {Key, WinnerPid}),
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LoserPid = spawn_sleep(100),
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Result = process_registry:register_and_monitor(Key, LoserPid, ProcessMap),
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?assertMatch({ok, WinnerPid, _Ref, _NewMap}, Result),
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{ok, ReturnedPid, Ref, NewMap} = Result,
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?assertEqual(WinnerPid, ReturnedPid),
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?assertEqual(WinnerPid, process_registry:registry_whereis(Key)),
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timer:sleep(50),
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?assertEqual(false, process_liveness:is_alive(LoserPid)),
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?assertEqual({WinnerPid, Ref}, maps:get(Key, NewMap)),
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process_registry:registry_unregister(Key).
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register_and_monitor_concurrent_test_() ->
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{timeout, 10, fun() ->
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process_registry:init(),
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Key = {test_reg, 1006},
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Parent = self(),
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Pids = [spawn_register_worker(Parent, Key) || _ <- lists:seq(1, 5)],
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Results = [
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receive
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{P, R} -> R
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after 2000 -> timeout
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end
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|| P <- Pids
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],
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?assertEqual(5, length(Results)),
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SuccessResults = [R || R <- Results, is_tuple(R), element(1, R) =:= ok],
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RaceErrors = [R || R <- Results, R =:= {error, registration_race_condition}],
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Timeouts = [R || R <- Results, R =:= timeout],
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?assertEqual(0, length(Timeouts)),
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?assertMatch([_ | _], SuccessResults),
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?assertEqual(5, length(SuccessResults) + length(RaceErrors)),
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assert_success_results_share_pid(SuccessResults),
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process_registry:registry_unregister(Key)
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end}.
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registry_whereis_dead_test() ->
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process_registry:init(),
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Key = {test_whereis, 2002},
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Pid = spawn(fun() -> ok end),
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timer:sleep(10),
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ets:insert(?REGISTRY_TABLE, {Key, Pid}),
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?assertEqual(undefined, process_registry:registry_whereis(Key)).
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spawn_sleep(Milliseconds) ->
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spawn(fun() -> timer:sleep(Milliseconds) end).
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assert_success_results_share_pid([{ok, FirstPid, _, _} | RestResults]) ->
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AllSamePid = lists:all(
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fun(Result) -> success_pid_matches(FirstPid, Result) end,
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RestResults
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),
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?assert(AllSamePid).
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success_pid_matches(FirstPid, {ok, Pid, _, _}) ->
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Pid =:= FirstPid;
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success_pid_matches(_FirstPid, _Result) ->
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false.
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spawn_register_worker(Parent, Key) ->
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spawn(fun() ->
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Pid = spawn_sleep(200),
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Result = process_registry:register_and_monitor(Key, Pid, #{}),
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Parent ! {self(), Result}
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end).
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