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%% The contents of this file are subject to the Mozilla Public License
%% Version 1.1 (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.mozilla.org/MPL/
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and
%% limitations under the License.
%%
%% The Original Code is RabbitMQ.
%%
%% The Initial Developer of the Original Code is VMware, Inc.
%% Copyright (c) 2011-2011 VMware, Inc. All rights reserved.
%%
-module(gen_server2_tests).
-compile([export_all]).
-behaviour(gen_server2).
-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2,
code_change/3, prioritise_call/3, prioritise_cast/2,
prioritise_info/2]).
init([]) ->
{ok, queue:new()}.
handle_call(pause, From, Q) ->
gen_server2:reply(From, ok),
timer:sleep(1000),
{noreply, queue:in({call, pause}, Q)};
handle_call(stop, _From, Q) ->
Q1 = queue:in({call, stop}, Q),
{stop, normal, queue:to_list(Q1), Q1};
handle_call(Msg, _From, Q) ->
{reply, ok, queue:in({call, Msg}, Q)}.
handle_cast(Msg, Q) ->
{noreply, queue:in({cast, Msg}, Q)}.
handle_info(Msg, Q) ->
{noreply, queue:in({info, Msg}, Q)}.
terminate(_Reason, _Q) ->
ok.
code_change(_OldVsn, State, _Extra) ->
{ok, State}.
prioritise_call(pause, _From, _State) -> {infinity, infinity};
prioritise_call(stop, _From, _State) -> {0, 0};
prioritise_call({W, P}, _From, _State) -> {W, P};
prioritise_call(P, _From, _State) -> P.
prioritise_cast({W, P}, _State) -> {W, P};
prioritise_cast(P, _State) -> P.
prioritise_info({W, P}, _State) -> {W, P};
prioritise_info(P, _State) -> P.
test() ->
{ok, Pid} = gen_server2:start_link(?MODULE, [], []),
unlink(Pid),
ok = gen_server2:pcall(Pid, pause, infinity),
[gen_server2:pcast(Pid, {W, P})
|| W <- [infinity | lists:seq(0, 10)],
P <- [infinity | lists:seq(0, 10)]],
Order = gen_server2:pcall(Pid, stop, infinity),
Order = [{call, pause} |
[{cast, {W, P}} ||
P <- [infinity | lists:seq(10, 0, -1)],
W <- [infinity | lists:seq(0, 10)]] ++
[{call, stop}]],
passed.
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