File 0794-stdlib-Add-some-basic-pool-testcases.patch of Package erlang

From 8791443069a7b7010284174ca8696bdcc0873cec Mon Sep 17 00:00:00 2001
From: Lukas Larsson <lukas@erlang.org>
Date: Mon, 21 Oct 2019 12:34:21 +0200
Subject: [PATCH 2/2] stdlib: Add some basic pool testcases

---
 lib/stdlib/test/Makefile       |  1 +
 lib/stdlib/test/pool_SUITE.erl | 95 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 96 insertions(+)
 create mode 100644 lib/stdlib/test/pool_SUITE.erl

diff --git a/lib/stdlib/test/Makefile b/lib/stdlib/test/Makefile
index aca1ae2f01..7f7a0834ba 100644
--- a/lib/stdlib/test/Makefile
+++ b/lib/stdlib/test/Makefile
@@ -53,6 +53,7 @@ MODULES= \
 	lists_SUITE \
 	log_mf_h_SUITE \
 	ms_transform_SUITE \
+	pool_SUITE \
 	proc_lib_SUITE \
 	proplists_SUITE \
 	qlc_SUITE \
diff --git a/lib/stdlib/test/pool_SUITE.erl b/lib/stdlib/test/pool_SUITE.erl
new file mode 100644
index 0000000000..ead4cd58ca
--- /dev/null
+++ b/lib/stdlib/test/pool_SUITE.erl
@@ -0,0 +1,95 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 1996-2018. All Rights Reserved.
+%% 
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%% 
+%% %CopyrightEnd%
+%%
+-module(pool_SUITE).
+
+-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
+	 init_per_group/2,end_per_group/2]).
+-export([basic/1, link_race/1, echo/1]).
+
+suite() -> [{ct_hooks,[{ts_install_cth,[{nodenames, 1}]}]}].
+
+all() ->
+    [basic, link_race].
+
+groups() ->
+    [].
+
+init_per_suite(Config) ->
+    Config.
+
+end_per_suite(_Config) ->
+    ok.
+
+init_per_group(_GroupName, Config) ->
+    Config.
+
+end_per_group(_GroupName, Config) ->
+    Config.
+
+basic(Config) ->
+
+    {ok, Node, PoolNode} = init_pool(pool_SUITE_basic, basic, Config),
+
+    Node = rpc:call(Node, pool, get_node, []),
+    PoolNode = rpc:call(Node, pool, get_node, []),
+
+    do_echo(Node),
+    do_echo(Node),
+
+    test_server:stop_node(Node),
+    ok.
+
+link_race(Config) ->
+
+    {ok, Node, PoolNode} = init_pool(pool_SUITE_basic, basic, Config),
+
+    Node = rpc:call(Node, pool, get_node, []),
+    PoolNode = rpc:call(Node, pool, get_node, []),
+
+    rpc:call(Node, pool, pspawn_link, [erlang, is_atom, [?MODULE]]),
+
+    test_server:stop_node(Node),
+    ok.
+
+do_echo(Node) ->
+    EchoPid = rpc:call(Node, pool, pspawn, [?MODULE, echo, [self()]]),
+    Ref = EchoPid ! make_ref(),
+    receive Ref -> ok after 1000 -> ct:fail(receive M -> M after 0 -> timeout end) end.
+
+echo(Parent) ->
+    receive Msg ->
+            Parent ! Msg
+    end.
+
+
+init_pool(Proxy, Name, Config) ->
+    PrivDir = proplists:get_value(priv_dir, Config),
+    [Slave] = proplists:get_value(nodenames, Config),
+    {ok, Node} = test_server:start_node(Proxy, slave, []),
+    {ok, Hostname} = inet:gethostname(),
+    file:write_file(filename:join(PrivDir,".hosts.erlang"),"'"++Hostname++"'.\n"),
+    ok = rpc:call(Node, file, set_cwd, [PrivDir]),
+
+    [PoolNode] = rpc:call(Node, pool, start, [Name]),
+
+    Nodes = rpc:call(Node, pool, get_nodes, []),
+    [rpc:call(N, code, add_patha, [filename:dirname(code:which(?MODULE))]) || N <- Nodes],
+
+    {ok, Node, PoolNode}.
-- 
2.16.4