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Posted to commits@couchdb.apache.org by ch...@apache.org on 2014/08/28 19:35:21 UTC
[26/50] [abbrv] couch commit: updated refs/heads/1963-eunit-bigcouch
to 3ecd0a0
Port 210-os-proc-pool.t etap test suite to eunit
Project: http://git-wip-us.apache.org/repos/asf/couchdb-couch/repo
Commit: http://git-wip-us.apache.org/repos/asf/couchdb-couch/commit/2e4ac35f
Tree: http://git-wip-us.apache.org/repos/asf/couchdb-couch/tree/2e4ac35f
Diff: http://git-wip-us.apache.org/repos/asf/couchdb-couch/diff/2e4ac35f
Branch: refs/heads/1963-eunit-bigcouch
Commit: 2e4ac35f8ad945e8a31ab708446ac7538f169fca
Parents: 5cf9089
Author: Alexander Shorin <kx...@apache.org>
Authored: Sun Jun 8 13:08:50 2014 +0400
Committer: Russell Branca <ch...@apache.org>
Committed: Thu Aug 28 10:34:06 2014 -0700
----------------------------------------------------------------------
test/couchdb/couchdb_os_proc_pool.erl | 179 +++++++++++++++++++++++++++++
1 file changed, 179 insertions(+)
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http://git-wip-us.apache.org/repos/asf/couchdb-couch/blob/2e4ac35f/test/couchdb/couchdb_os_proc_pool.erl
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diff --git a/test/couchdb/couchdb_os_proc_pool.erl b/test/couchdb/couchdb_os_proc_pool.erl
new file mode 100644
index 0000000..1bb266e
--- /dev/null
+++ b/test/couchdb/couchdb_os_proc_pool.erl
@@ -0,0 +1,179 @@
+% 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.
+
+-module(couchdb_os_proc_pool).
+
+-include("couch_eunit.hrl").
+-include_lib("couchdb/couch_db.hrl").
+
+-define(TIMEOUT, 3000).
+
+
+start() ->
+ {ok, Pid} = couch_server_sup:start_link(?CONFIG_CHAIN),
+ couch_config:set("query_server_config", "os_process_limit", "3", false),
+ Pid.
+
+stop(Pid) ->
+ couch_server_sup:stop(),
+ erlang:monitor(process, Pid),
+ receive
+ {'DOWN', _, _, Pid, _} ->
+ ok
+ after ?TIMEOUT ->
+ throw({timeout, server_stop})
+ end.
+
+
+os_proc_pool_test_() ->
+ {
+ "OS processes pool tests",
+ {
+ setup,
+ fun start/0, fun stop/1,
+ [
+ should_block_new_proc_on_full_pool(),
+ should_free_slot_on_proc_unexpected_exit()
+ ]
+ }
+ }.
+
+
+should_block_new_proc_on_full_pool() ->
+ ?_test(begin
+ Client1 = spawn_client(),
+ Client2 = spawn_client(),
+ Client3 = spawn_client(),
+
+ ?assertEqual(ok, ping_client(Client1)),
+ ?assertEqual(ok, ping_client(Client2)),
+ ?assertEqual(ok, ping_client(Client3)),
+
+ Proc1 = get_client_proc(Client1, "1"),
+ Proc2 = get_client_proc(Client2, "2"),
+ Proc3 = get_client_proc(Client3, "3"),
+
+ ?assertNotEqual(Proc1, Proc2),
+ ?assertNotEqual(Proc2, Proc3),
+ ?assertNotEqual(Proc3, Proc1),
+
+ Client4 = spawn_client(),
+ ?assertEqual(timeout, ping_client(Client4)),
+
+ ?assertEqual(ok, stop_client(Client1)),
+ ?assertEqual(ok, ping_client(Client4)),
+
+ Proc4 = get_client_proc(Client4, "4"),
+ ?assertEqual(Proc1, Proc4),
+
+ lists:map(fun(C) ->
+ ?assertEqual(ok, stop_client(C))
+ end, [Client2, Client3, Client4])
+ end).
+
+should_free_slot_on_proc_unexpected_exit() ->
+ ?_test(begin
+ Client1 = spawn_client(),
+ Client2 = spawn_client(),
+ Client3 = spawn_client(),
+
+ ?assertEqual(ok, ping_client(Client1)),
+ ?assertEqual(ok, ping_client(Client2)),
+ ?assertEqual(ok, ping_client(Client3)),
+
+ Proc1 = get_client_proc(Client1, "1"),
+ Proc2 = get_client_proc(Client2, "2"),
+ Proc3 = get_client_proc(Client3, "3"),
+
+ ?assertNotEqual(Proc1, Proc2),
+ ?assertNotEqual(Proc2, Proc3),
+ ?assertNotEqual(Proc3, Proc1),
+
+ ?assertEqual(ok, kill_client(Client1)),
+
+ Client4 = spawn_client(),
+ ?assertEqual(ok, ping_client(Client4)),
+
+ Proc4 = get_client_proc(Client4, "4"),
+ ?assertNotEqual(Proc4, Proc1),
+ ?assertNotEqual(Proc2, Proc4),
+ ?assertNotEqual(Proc3, Proc4),
+
+ lists:map(fun(C) ->
+ ?assertEqual(ok, stop_client(C))
+ end, [Client2, Client3, Client4])
+ end).
+
+
+spawn_client() ->
+ Parent = self(),
+ Ref = make_ref(),
+ Pid = spawn(fun() ->
+ Proc = couch_query_servers:get_os_process(<<"javascript">>),
+ loop(Parent, Ref, Proc)
+ end),
+ {Pid, Ref}.
+
+ping_client({Pid, Ref}) ->
+ Pid ! ping,
+ receive
+ {pong, Ref} ->
+ ok
+ after ?TIMEOUT ->
+ timeout
+ end.
+
+get_client_proc({Pid, Ref}, ClientName) ->
+ Pid ! get_proc,
+ receive
+ {proc, Ref, Proc} -> Proc
+ after ?TIMEOUT ->
+ erlang:error({assertion_failed,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {reason, "Timeout getting client "
+ ++ ClientName ++ " proc"}]})
+ end.
+
+stop_client({Pid, Ref}) ->
+ Pid ! stop,
+ receive
+ {stop, Ref} ->
+ ok
+ after ?TIMEOUT ->
+ timeout
+ end.
+
+kill_client({Pid, Ref}) ->
+ Pid ! die,
+ receive
+ {die, Ref} ->
+ ok
+ after ?TIMEOUT ->
+ timeout
+ end.
+
+loop(Parent, Ref, Proc) ->
+ receive
+ ping ->
+ Parent ! {pong, Ref},
+ loop(Parent, Ref, Proc);
+ get_proc ->
+ Parent ! {proc, Ref, Proc},
+ loop(Parent, Ref, Proc);
+ stop ->
+ couch_query_servers:ret_os_process(Proc),
+ Parent ! {stop, Ref};
+ die ->
+ Parent ! {die, Ref},
+ exit(some_error)
+ end.