| % 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(ddoc_cache_entry_test). |
| |
| |
| -export([ |
| recover/1 |
| ]). |
| |
| |
| -include_lib("couch/include/couch_db.hrl"). |
| -include_lib("eunit/include/eunit.hrl"). |
| -include("ddoc_cache_test.hrl"). |
| |
| |
| recover(<<"foo">>) -> |
| timer:sleep(30000); |
| |
| recover(DbName) -> |
| {ok, {DbName, such_custom}}. |
| |
| |
| start_couch() -> |
| Ctx = ddoc_cache_tutil:start_couch(), |
| meck:new(ddoc_cache_ev, [passthrough]), |
| Ctx. |
| |
| |
| stop_couch(Ctx) -> |
| meck:unload(), |
| ddoc_cache_tutil:stop_couch(Ctx). |
| |
| |
| check_entry_test_() -> |
| { |
| setup, |
| fun start_couch/0, |
| fun stop_couch/1, |
| ddoc_cache_tutil:with([ |
| {"cancel_and_replace_opener", fun cancel_and_replace_opener/1}, |
| {"condenses_access_messages", fun condenses_access_messages/1}, |
| {"kill_opener_on_terminate", fun kill_opener_on_terminate/1}, |
| {"evict_when_not_accessed", fun evict_when_not_accessed/1}, |
| {"open_dead_entry", fun open_dead_entry/1}, |
| {"handles_bad_messages", fun handles_bad_messages/1}, |
| {"handles_code_change", fun handles_code_change/1} |
| ]) |
| }. |
| |
| |
| cancel_and_replace_opener(_) -> |
| Key = {ddoc_cache_entry_custom, {<<"foo">>, ?MODULE}}, |
| true = ets:insert_new(?CACHE, #entry{key = Key}), |
| {ok, Entry} = ddoc_cache_entry:start_link(Key, undefined), |
| Opener1 = element(4, sys:get_state(Entry)), |
| Ref1 = erlang:monitor(process, Opener1), |
| gen_server:cast(Entry, force_refresh), |
| receive {'DOWN', Ref1, _, _, _} -> ok end, |
| Opener2 = element(4, sys:get_state(Entry)), |
| ?assert(Opener2 /= Opener1), |
| ?assert(is_process_alive(Opener2)), |
| % Clean up after ourselves |
| unlink(Entry), |
| ddoc_cache_entry:shutdown(Entry). |
| |
| |
| condenses_access_messages({DbName, _}) -> |
| meck:reset(ddoc_cache_ev), |
| Key = {ddoc_cache_entry_custom, {DbName, ?MODULE}}, |
| true = ets:insert(?CACHE, #entry{key = Key}), |
| {ok, Entry} = ddoc_cache_entry:start_link(Key, undefined), |
| erlang:suspend_process(Entry), |
| lists:foreach(fun(_) -> |
| gen_server:cast(Entry, accessed) |
| end, lists:seq(1, 100)), |
| erlang:resume_process(Entry), |
| meck:wait(1, ddoc_cache_ev, event, [accessed, Key], 1000), |
| ?assertError( |
| timeout, |
| meck:wait(2, ddoc_cache_ev, event, [accessed, Key], 100) |
| ), |
| unlink(Entry), |
| ddoc_cache_entry:shutdown(Entry). |
| |
| |
| kill_opener_on_terminate(_) -> |
| Pid = spawn(fun() -> receive _ -> ok end end), |
| ?assert(is_process_alive(Pid)), |
| St = {st, key, val, Pid, waiters, ts, accessed}, |
| ?assertEqual(ok, ddoc_cache_entry:terminate(normal, St)), |
| ?assert(not is_process_alive(Pid)). |
| |
| |
| evict_when_not_accessed(_) -> |
| meck:reset(ddoc_cache_ev), |
| Key = {ddoc_cache_entry_custom, {<<"bar">>, ?MODULE}}, |
| true = ets:insert_new(?CACHE, #entry{key = Key}), |
| {ok, Entry} = ddoc_cache_entry:start_link(Key, undefined), |
| Ref = erlang:monitor(process, Entry), |
| AccessCount1 = element(7, sys:get_state(Entry)), |
| ?assertEqual(1, AccessCount1), |
| ok = gen_server:cast(Entry, refresh), |
| |
| meck:wait(ddoc_cache_ev, event, [update_noop, Key], 1000), |
| |
| AccessCount2 = element(7, sys:get_state(Entry)), |
| ?assertEqual(0, AccessCount2), |
| ok = gen_server:cast(Entry, refresh), |
| receive {'DOWN', Ref, _, _, Reason} -> Reason end, |
| ?assertEqual(normal, Reason), |
| ?assertEqual(0, ets:info(?CACHE, size)). |
| |
| |
| open_dead_entry({DbName, _}) -> |
| Pid = spawn(fun() -> ok end), |
| Key = {ddoc_cache_entry_custom, {DbName, ?MODULE}}, |
| ?assertEqual(recover(DbName), ddoc_cache_entry:open(Pid, Key)). |
| |
| |
| handles_bad_messages(_) -> |
| CallExpect = {stop, {bad_call, foo}, {bad_call, foo}, baz}, |
| CastExpect = {stop, {bad_cast, foo}, bar}, |
| InfoExpect = {stop, {bad_info, foo}, bar}, |
| ?assertEqual(CallExpect, ddoc_cache_entry:handle_call(foo, bar, baz)), |
| ?assertEqual(CastExpect, ddoc_cache_entry:handle_cast(foo, bar)), |
| ?assertEqual(InfoExpect, ddoc_cache_entry:handle_info(foo, bar)). |
| |
| |
| handles_code_change(_) -> |
| CCExpect = {ok, bar}, |
| ?assertEqual(CCExpect, ddoc_cache_entry:code_change(foo, bar, baz)). |
| |
| |
| handles_bad_shutdown_test_() -> |
| {timeout, 10, ?_test(begin |
| ErrorPid = spawn(fun() -> |
| receive |
| _ -> exit(bad_shutdown) |
| end |
| end), |
| ?assertExit(bad_shutdown, ddoc_cache_entry:shutdown(ErrorPid)), |
| NotDeadYetPid = spawn(fun() -> |
| timer:sleep(infinity) |
| end), |
| ?assertExit( |
| {timeout, {entry_shutdown, NotDeadYetPid}}, |
| ddoc_cache_entry:shutdown(NotDeadYetPid) |
| ) |
| end)}. |