From 39828681c7dae5c96e8d6ccf6411802a9b1fb470 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lo=C3=AFc=20Hoguin?= <essen@ninenines.eu>
Date: Mon, 8 Jun 2020 15:46:42 +0200
Subject: Add two Concuerror tests

The tests are starting and stopping a Ranch listener,
and starting a Ranch listener then immediately call
ranch:info/1.
---
 test/ranch_concuerror.erl | 80 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
 create mode 100644 test/ranch_concuerror.erl

(limited to 'test/ranch_concuerror.erl')

diff --git a/test/ranch_concuerror.erl b/test/ranch_concuerror.erl
new file mode 100644
index 0000000..0347fce
--- /dev/null
+++ b/test/ranch_concuerror.erl
@@ -0,0 +1,80 @@
+%% Copyright (c) 2020, Loïc Hoguin <essen@ninenines.eu>
+%%
+%% Permission to use, copy, modify, and/or distribute this software for any
+%% purpose with or without fee is hereby granted, provided that the above
+%% copyright notice and this permission notice appear in all copies.
+%%
+%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+-module(ranch_concuerror).
+-compile(export_all).
+-compile(nowarn_export_all).
+
+-concuerror_options([
+	{after_timeout, 5000},
+	{treat_as_normal, [
+		killed, %% Acceptors are killed on shutdown.
+		shutdown %% This is a normal exit reason in OTP.
+	]}
+]).
+
+%% Convenience functions.
+
+do_start() ->
+	{ok, SupPid} = ranch_app:start(temporary, []),
+	SupPid.
+
+do_stop(SupPid) ->
+	exit(SupPid, shutdown),
+	%% We make sure that SupPid terminated before the test ends,
+	%% because otherwise the shutdown will not be ordered and
+	%% can produce error exit reasons.
+	receive after infinity -> ok end.
+
+%% Tests.
+
+start_stop() ->
+	%% Start a listener then stop it.
+	SupPid = do_start(),
+	{ok, _} = ranch:start_listener(?FUNCTION_NAME,
+		ranch_erlang_transport, #{
+			num_acceptors => 1
+		},
+		echo_protocol, []),
+	ok = ranch:stop_listener(?FUNCTION_NAME),
+	do_stop(SupPid).
+
+%% @todo This takes a huge amount of time.
+%start_stop_twice() ->
+%	%% Start a listener then stop it. Then start and stop it again.
+%	SupPid = do_start(),
+%	{ok, _} = ranch:start_listener(?FUNCTION_NAME,
+%		ranch_erlang_transport, #{
+%			num_acceptors => 1
+%		},
+%		echo_protocol, []),
+%	ok = ranch:stop_listener(?FUNCTION_NAME),
+%	{ok, _} = ranch:start_listener(?FUNCTION_NAME,
+%		ranch_erlang_transport, #{
+%			num_acceptors => 1
+%		},
+%		echo_protocol, []),
+%	ok = ranch:stop_listener(?FUNCTION_NAME),
+%	do_stop(SupPid).
+
+info() ->
+	%% Ensure we can call ranch:info/1 after starting a listener.
+	SupPid = do_start(),
+	{ok, _} = ranch:start_listener(?FUNCTION_NAME,
+		ranch_erlang_transport, #{
+			num_acceptors => 1
+		},
+		echo_protocol, []),
+	#{} = ranch:info(?FUNCTION_NAME),
+	do_stop(SupPid).
-- 
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