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731 行
36 KiB
731 行
36 KiB
%% Copyright (c) 2011 Basho Technologies, Inc. All Rights Reserved.
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%%
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%% This file is provided to you under the Apache License,
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%% Version 2.0 (the "License"); you may not use this file
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%% except in compliance with the License. You may obtain
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%% a copy of the License at
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%%
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%% http://www.apache.org/licenses/LICENSE-2.0
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%%
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%% Unless required by applicable law or agreed to in writing,
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%% software distributed under the License is distributed on an
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%% "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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%% KIND, either express or implied. See the License for the
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%% specific language governing permissions and limitations
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%% under the License.
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-module(lager_test_backend).
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-include("lager.hrl").
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-behaviour(gen_event).
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-export([init/1, handle_call/2, handle_event/2, handle_info/2, terminate/2,
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code_change/3]).
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-record(state, {level, buffer, ignored}).
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-compile([{parse_transform, lager_transform}]).
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-ifdef(TEST).
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-include_lib("eunit/include/eunit.hrl").
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-export([pop/0, count/0, count_ignored/0, flush/0]).
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-endif.
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init(Level) ->
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{ok, #state{level=lager_util:level_to_num(Level), buffer=[], ignored=[]}}.
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handle_call(count, #state{buffer=Buffer} = State) ->
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{ok, length(Buffer), State};
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handle_call(count_ignored, #state{ignored=Ignored} = State) ->
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{ok, length(Ignored), State};
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handle_call(flush, State) ->
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{ok, ok, State#state{buffer=[], ignored=[]}};
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handle_call(pop, #state{buffer=Buffer} = State) ->
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case Buffer of
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[] ->
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{ok, undefined, State};
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[H|T] ->
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{ok, H, State#state{buffer=T}}
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end;
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handle_call(get_loglevel, #state{level=Level} = State) ->
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{ok, Level, State};
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handle_call({set_loglevel, Level}, State) ->
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{ok, ok, State#state{level=lager_util:level_to_num(Level)}};
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handle_call(_Request, State) ->
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{ok, ok, State}.
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handle_event({log, [?MODULE], Level, Time, Message}, #state{buffer=Buffer} = State) ->
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{ok, State#state{buffer=Buffer ++ [{Level, Time, Message}]}};
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handle_event({log, Level, Time, Message}, #state{level=LogLevel,
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buffer=Buffer} = State) when Level =< LogLevel ->
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{ok, State#state{buffer=Buffer ++ [{Level, Time, Message}]}};
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handle_event({log, _Level, _Time, _Message}, #state{ignored=Ignored} = State) ->
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{ok, State#state{ignored=Ignored ++ [ignored]}};
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handle_event(_Event, State) ->
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{ok, State}.
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handle_info(_Info, State) ->
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{ok, State}.
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terminate(_Reason, _State) ->
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ok.
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code_change(_OldVsn, State, _Extra) ->
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{ok, State}.
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-ifdef(TEST).
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pop() ->
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gen_event:call(lager_event, ?MODULE, pop).
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count() ->
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gen_event:call(lager_event, ?MODULE, count).
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count_ignored() ->
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gen_event:call(lager_event, ?MODULE, count_ignored).
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flush() ->
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gen_event:call(lager_event, ?MODULE, flush).
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not_running_test() ->
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?assertEqual({error, lager_not_running}, lager:log(info, self(), "not running")).
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lager_test_() ->
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{foreach,
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fun setup/0,
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fun cleanup/1,
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[
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{"observe that there is nothing up my sleeve",
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fun() ->
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?assertEqual(undefined, pop()),
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?assertEqual(0, count())
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end
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},
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{"logging works",
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fun() ->
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lager:warning("test message"),
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?assertEqual(1, count()),
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{Level, _Time, Message} = pop(),
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?assertMatch(Level, lager_util:level_to_num(warning)),
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[LevelStr, _LocStr, MsgStr] = re:split(Message, " ", [{return, list}, {parts, 3}]),
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?assertEqual("[warning]", LevelStr),
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?assertEqual("test message", MsgStr),
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ok
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end
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},
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{"logging with arguments works",
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fun() ->
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lager:warning("test message ~p", [self()]),
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?assertEqual(1, count()),
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{Level, _Time, Message} = pop(),
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?assertMatch(Level, lager_util:level_to_num(warning)),
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[LevelStr, _LocStr, MsgStr] = re:split(Message, " ", [{return, list}, {parts, 3}]),
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?assertEqual("[warning]", LevelStr),
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?assertEqual(lists:flatten(io_lib:format("test message ~p", [self()])), MsgStr),
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ok
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end
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},
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{"logging works from inside a begin/end block",
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fun() ->
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?assertEqual(0, count()),
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begin
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lager:warning("test message 2")
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end,
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?assertEqual(1, count()),
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ok
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end
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},
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{"logging works from inside a list comprehension",
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fun() ->
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?assertEqual(0, count()),
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[lager:warning("test message") || _N <- lists:seq(1, 10)],
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?assertEqual(10, count()),
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ok
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end
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},
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{"logging works from a begin/end block inside a list comprehension",
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fun() ->
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?assertEqual(0, count()),
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[ begin lager:warning("test message") end || _N <- lists:seq(1, 10)],
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?assertEqual(10, count()),
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ok
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end
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},
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{"logging works from a nested list comprehension",
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fun() ->
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?assertEqual(0, count()),
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[ [lager:warning("test message") || _N <- lists:seq(1, 10)] ||
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_I <- lists:seq(1, 10)],
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?assertEqual(100, count()),
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ok
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end
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},
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{"log messages below the threshold are ignored",
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fun() ->
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?assertEqual(0, count()),
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lager:debug("this message will be ignored"),
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?assertEqual(0, count()),
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?assertEqual(0, count_ignored()),
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lager_mochiglobal:put(loglevel, {?DEBUG, []}),
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lager:debug("this message should be ignored"),
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?assertEqual(0, count()),
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?assertEqual(1, count_ignored()),
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lager:set_loglevel(?MODULE, debug),
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lager:debug("this message should be logged"),
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?assertEqual(1, count()),
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?assertEqual(1, count_ignored()),
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?assertEqual(debug, lager:get_loglevel(?MODULE)),
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ok
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end
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},
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{"tracing works",
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fun() ->
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lager_mochiglobal:put(loglevel, {?ERROR, []}),
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ok = lager:info("hello world"),
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?assertEqual(0, count()),
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lager_mochiglobal:put(loglevel, {?ERROR, [{[{module,
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?MODULE}], ?DEBUG, ?MODULE}]}),
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ok = lager:info("hello world"),
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?assertEqual(1, count()),
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ok
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end
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},
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{"tracing works with custom attributes",
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fun() ->
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lager_mochiglobal:put(loglevel, {?ERROR, []}),
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lager:info([{requestid, 6}], "hello world"),
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?assertEqual(0, count()),
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lager_mochiglobal:put(loglevel, {?ERROR,
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[{[{requestid, 6}], ?DEBUG, ?MODULE}]}),
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lager:info([{requestid, 6}, {foo, bar}], "hello world"),
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?assertEqual(1, count()),
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lager_mochiglobal:put(loglevel, {?ERROR,
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[{[{requestid, '*'}], ?DEBUG, ?MODULE}]}),
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lager:info([{requestid, 6}], "hello world"),
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?assertEqual(2, count()),
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ok
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end
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},
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{"tracing honors loglevel",
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fun() ->
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lager_mochiglobal:put(loglevel, {?ERROR, [{[{module,
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?MODULE}], ?NOTICE, ?MODULE}]}),
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ok = lager:info("hello world"),
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?assertEqual(0, count()),
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ok = lager:notice("hello world"),
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?assertEqual(1, count()),
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ok
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end
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}
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]
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}.
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setup() ->
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error_logger:tty(false),
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application:load(lager),
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application:set_env(lager, handlers, [{?MODULE, info}]),
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application:set_env(lager, error_logger_redirect, false),
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application:start(lager),
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gen_event:call(lager_event, ?MODULE, flush).
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cleanup(_) ->
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application:stop(lager),
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error_logger:tty(true).
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crash(Type) ->
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spawn(fun() -> gen_server:call(crash, Type) end),
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timer:sleep(100),
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_ = gen_event:which_handlers(error_logger),
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ok.
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error_logger_redirect_crash_test_() ->
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{foreach,
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fun() ->
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error_logger:tty(false),
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application:load(lager),
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application:set_env(lager, error_logger_redirect, true),
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application:set_env(lager, handlers, [{?MODULE, error}]),
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application:start(lager),
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crash:start()
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end,
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fun(_) ->
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application:stop(lager),
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case whereis(crash) of
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undefined -> ok;
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Pid -> exit(Pid, kill)
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end,
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error_logger:tty(true)
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end,
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[
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{"again, there is nothing up my sleeve",
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fun() ->
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?assertEqual(undefined, pop()),
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?assertEqual(0, count())
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end
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},
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{"bad return value",
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fun() ->
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Pid = whereis(crash),
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crash(bad_return),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: bad return value: bleh", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"bad return value with string",
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fun() ->
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Pid = whereis(crash),
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crash(bad_return_string),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: bad return value: {tuple,{tuple,\"string\"}}", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"case clause",
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fun() ->
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Pid = whereis(crash),
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crash(case_clause),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: no case clause matching {} in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"case clause string",
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fun() ->
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Pid = whereis(crash),
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crash(case_clause_string),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: no case clause matching \"crash\" in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"function clause",
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fun() ->
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Pid = whereis(crash),
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crash(function_clause),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: no function clause matching crash:function({})", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"if clause",
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fun() ->
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Pid = whereis(crash),
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crash(if_clause),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: no true branch found while evaluating if expression in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"try clause",
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fun() ->
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Pid = whereis(crash),
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crash(try_clause),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: no try clause matching [] in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"undefined function",
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fun() ->
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Pid = whereis(crash),
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crash(undef),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: call to undefined function crash:booger/0 from crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"bad math",
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fun() ->
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Pid = whereis(crash),
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crash(badarith),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: bad arithmetic expression in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"bad match",
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fun() ->
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Pid = whereis(crash),
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crash(badmatch),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: no match of right hand value {} in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"bad arity",
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fun() ->
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Pid = whereis(crash),
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crash(badarity),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: fun called with wrong arity of 1 instead of 3 in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"bad arg1",
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fun() ->
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Pid = whereis(crash),
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crash(badarg1),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: bad argument in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"bad arg2",
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fun() ->
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Pid = whereis(crash),
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crash(badarg2),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: bad argument in call to erlang:iolist_to_binary([\"foo\",bar]) in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"noproc",
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fun() ->
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Pid = whereis(crash),
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crash(noproc),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: no such process or port in call to gen_event:call(foo, bar, baz)", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"badfun",
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fun() ->
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Pid = whereis(crash),
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crash(badfun),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w gen_server crash terminated with reason: bad function booger in crash:handle_call/3", [Pid])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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}
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]
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}.
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error_logger_redirect_test_() ->
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{foreach,
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fun() ->
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error_logger:tty(false),
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application:load(lager),
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application:set_env(lager, error_logger_redirect, true),
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application:set_env(lager, handlers, [{?MODULE, info}]),
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application:start(lager),
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lager:log(error, self(), "flush flush"),
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timer:sleep(100),
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gen_event:call(lager_event, ?MODULE, flush)
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end,
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fun(_) ->
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application:stop(lager),
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error_logger:tty(true)
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end,
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[
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{"error reports are printed",
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fun() ->
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sync_error_logger:error_report([{this, is}, a, {silly, format}]),
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_ = gen_event:which_handlers(error_logger),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w this: is, a, silly: format", [self()])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"string error reports are printed",
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fun() ->
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sync_error_logger:error_report("this is less silly"),
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_ = gen_event:which_handlers(error_logger),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w this is less silly", [self()])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"error messages are printed",
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fun() ->
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sync_error_logger:error_msg("doom, doom has come upon you all"),
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_ = gen_event:which_handlers(error_logger),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[error] ~w doom, doom has come upon you all", [self()])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"error messages are truncated at 4096 characters",
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fun() ->
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sync_error_logger:error_msg("doom, doom has come upon you all ~p", [string:copies("doom", 10000)]),
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_ = gen_event:which_handlers(error_logger),
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{_, _, Msg} = pop(),
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?assert(length(lists:flatten(Msg)) < 5100)
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end
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},
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{"info reports are printed",
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fun() ->
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sync_error_logger:info_report([{this, is}, a, {silly, format}]),
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_ = gen_event:which_handlers(error_logger),
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{_, _, Msg} = pop(),
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Expected = lists:flatten(io_lib:format("[info] ~w this: is, a, silly: format", [self()])),
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?assertEqual(Expected, lists:flatten(Msg))
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end
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},
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{"info reports are truncated at 4096 characters",
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fun() ->
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sync_error_logger:info_report([[{this, is}, a, {silly, format}] || _ <- lists:seq(0, 600)]),
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_ = gen_event:which_handlers(error_logger),
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{_, _, Msg} = pop(),
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?assert(length(lists:flatten(Msg)) < 5000)
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end
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|
},
|
|
{"single term info reports are printed",
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fun() ->
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sync_error_logger:info_report({foolish, bees}),
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_ = gen_event:which_handlers(error_logger),
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|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[info] ~w {foolish,bees}", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"single term error reports are printed",
|
|
fun() ->
|
|
sync_error_logger:error_report({foolish, bees}),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w {foolish,bees}", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"string info reports are printed",
|
|
fun() ->
|
|
sync_error_logger:info_report("this is less silly"),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[info] ~w this is less silly", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"string info reports are truncated at 4096 characters",
|
|
fun() ->
|
|
sync_error_logger:info_report(string:copies("this is less silly", 1000)),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
?assert(length(lists:flatten(Msg)) < 5100)
|
|
end
|
|
},
|
|
{"strings in a mixed report are printed as strings",
|
|
fun() ->
|
|
sync_error_logger:info_report(["this is less silly", {than, "this"}]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[info] ~w \"this is less silly\", than: \"this\"", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"info messages are printed",
|
|
fun() ->
|
|
sync_error_logger:info_msg("doom, doom has come upon you all"),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[info] ~w doom, doom has come upon you all", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"info messages are truncated at 4096 characters",
|
|
fun() ->
|
|
sync_error_logger:info_msg("doom, doom has come upon you all ~p", [string:copies("doom", 10000)]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
?assert(length(lists:flatten(Msg)) < 5100)
|
|
end
|
|
},
|
|
|
|
{"warning messages are printed at the correct level",
|
|
fun() ->
|
|
sync_error_logger:warning_msg("doom, doom has come upon you all"),
|
|
Map = error_logger:warning_map(),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[~w] ~w doom, doom has come upon you all", [Map, self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"warning reports are printed at the correct level",
|
|
fun() ->
|
|
sync_error_logger:warning_report([{i, like}, pie]),
|
|
Map = error_logger:warning_map(),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[~w] ~w i: like, pie", [Map, self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"single term warning reports are printed at the correct level",
|
|
fun() ->
|
|
sync_error_logger:warning_report({foolish, bees}),
|
|
Map = error_logger:warning_map(),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[~w] ~w {foolish,bees}", [Map, self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"application stop reports",
|
|
fun() ->
|
|
sync_error_logger:info_report([{application, foo}, {exited, quittin_time}, {type, lazy}]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[info] ~w Application foo exited with reason: quittin_time", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"supervisor reports",
|
|
fun() ->
|
|
sync_error_logger:error_report(supervisor_report, [{errorContext, france}, {offender, [{name, mini_steve}, {mfargs, {a, b, [c]}}, {pid, bleh}]}, {reason, fired}, {supervisor, {local, steve}}]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w Supervisor steve had child mini_steve started with a:b(c) at bleh exit with reason fired in context france", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"supervisor reports with real error",
|
|
fun() ->
|
|
sync_error_logger:error_report(supervisor_report, [{errorContext, france}, {offender, [{name, mini_steve}, {mfargs, {a, b, [c]}}, {pid, bleh}]}, {reason, {function_clause,[{crash,handle_info,[foo]}]}}, {supervisor, {local, steve}}]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w Supervisor steve had child mini_steve started with a:b(c) at bleh exit with reason no function clause matching crash:handle_info(foo) in context france", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
|
|
{"supervisor_bridge reports",
|
|
fun() ->
|
|
sync_error_logger:error_report(supervisor_report, [{errorContext, france}, {offender, [{mod, mini_steve}, {pid, bleh}]}, {reason, fired}, {supervisor, {local, steve}}]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w Supervisor steve had child at module mini_steve at bleh exit with reason fired in context france", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"application progress report",
|
|
fun() ->
|
|
sync_error_logger:info_report(progress, [{application, foo}, {started_at, node()}]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[info] ~w Application foo started on node ~w", [self(), node()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"supervisor progress report",
|
|
fun() ->
|
|
lager:set_loglevel(?MODULE, debug),
|
|
sync_error_logger:info_report(progress, [{supervisor, {local, foo}}, {started, [{mfargs, {foo, bar, 1}}, {pid, baz}]}]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[debug] ~w Supervisor foo started foo:bar/1 at pid baz", [self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"crash report for emfile",
|
|
fun() ->
|
|
sync_error_logger:error_report(crash_report, [[{pid, self()}, {registered_name, []}, {error_info, {error, {emfile, [{stack, trace, 1}]}, []}}], []]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w CRASH REPORT Process ~w with 0 neighbours crashed with reason: maximum number of file descriptors exhausted, check ulimit -n", [self(), self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"crash report for system process limit",
|
|
fun() ->
|
|
sync_error_logger:error_report(crash_report, [[{pid, self()}, {registered_name, []}, {error_info, {error, {system_limit, [{erlang, spawn, 1}]}, []}}], []]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w CRASH REPORT Process ~w with 0 neighbours crashed with reason: system limit: maximum number of processes exceeded", [self(), self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"crash report for system process limit2",
|
|
fun() ->
|
|
sync_error_logger:error_report(crash_report, [[{pid, self()}, {registered_name, []}, {error_info, {error, {system_limit, [{erlang, spawn_opt, 1}]}, []}}], []]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w CRASH REPORT Process ~w with 0 neighbours crashed with reason: system limit: maximum number of processes exceeded", [self(), self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"crash report for system port limit",
|
|
fun() ->
|
|
sync_error_logger:error_report(crash_report, [[{pid, self()}, {registered_name, []}, {error_info, {error, {system_limit, [{erlang, open_port, 1}]}, []}}], []]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w CRASH REPORT Process ~w with 0 neighbours crashed with reason: system limit: maximum number of ports exceeded", [self(), self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"crash report for system port limit",
|
|
fun() ->
|
|
sync_error_logger:error_report(crash_report, [[{pid, self()}, {registered_name, []}, {error_info, {error, {system_limit, [{erlang, list_to_atom, 1}]}, []}}], []]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w CRASH REPORT Process ~w with 0 neighbours crashed with reason: system limit: tried to create an atom larger than 255, or maximum atom count exceeded", [self(), self()])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"crash report for system ets table limit",
|
|
fun() ->
|
|
sync_error_logger:error_report(crash_report, [[{pid, self()}, {registered_name, test}, {error_info, {error, {system_limit,[{ets,new,[segment_offsets,[ordered_set,public]]},{mi_segment,open_write,1},{mi_buffer_converter,handle_cast,2},{gen_server,handle_msg,5},{proc_lib,init_p_do_apply,3}]}, []}}], []]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~w CRASH REPORT Process ~w with 0 neighbours crashed with reason: system limit: maximum number of ETS tables exceeded", [self(), test])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"crash report for unknown system limit should be truncated at 500 characters",
|
|
fun() ->
|
|
sync_error_logger:error_report(crash_report, [[{pid, self()}, {error_info, {error, {system_limit,[{wtf,boom,[string:copies("aaaa", 4096)]}]}, []}}], []]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
?assert(length(lists:flatten(Msg)) > 600),
|
|
?assert(length(lists:flatten(Msg)) < 650)
|
|
end
|
|
},
|
|
{"crash reports for 'special processes' should be handled right",
|
|
fun() ->
|
|
{ok, Pid} = special_process:start(),
|
|
unlink(Pid),
|
|
Pid ! function_clause,
|
|
timer:sleep(500),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
{_, _, Msg} = pop(),
|
|
Expected = lists:flatten(io_lib:format("[error] ~p CRASH REPORT Process ~p with 0 neighbours crashed with reason: no function clause matching special_process:foo(bar)",
|
|
[Pid, Pid])),
|
|
?assertEqual(Expected, lists:flatten(Msg))
|
|
end
|
|
},
|
|
{"messages should not be generated if they don't satisfy the threshold",
|
|
fun() ->
|
|
lager:set_loglevel(?MODULE, error),
|
|
sync_error_logger:info_report([hello, world]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
?assertEqual(0, count()),
|
|
?assertEqual(0, count_ignored()),
|
|
lager:set_loglevel(?MODULE, info),
|
|
sync_error_logger:info_report([hello, world]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
?assertEqual(1, count()),
|
|
?assertEqual(0, count_ignored()),
|
|
lager:set_loglevel(?MODULE, error),
|
|
lager_mochiglobal:put(loglevel, {?DEBUG, []}),
|
|
sync_error_logger:info_report([hello, world]),
|
|
_ = gen_event:which_handlers(error_logger),
|
|
?assertEqual(1, count()),
|
|
?assertEqual(1, count_ignored())
|
|
end
|
|
}
|
|
]
|
|
}.
|
|
|
|
safe_format_test() ->
|
|
?assertEqual("foo bar", lists:flatten(lager:safe_format("~p ~p", [foo, bar], 1024))),
|
|
?assertEqual("FORMAT ERROR: \"~p ~p ~p\" [foo,bar]", lists:flatten(lager:safe_format("~p ~p ~p", [foo, bar], 1024))),
|
|
ok.
|
|
|
|
-endif.
|
|
|
|
|