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80 lines
2.6 KiB
80 lines
2.6 KiB
%% -------------------------------------------------------------------
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%%
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%% Copyright (c) 2011-2017 Basho Technologies, Inc.
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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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%%
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%% -------------------------------------------------------------------
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-module(lager_test_function_transform_error).
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-compile([
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{parse_transform, lager_transform}
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]).
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-lager_function_transforms([
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{returns_undefined, {not_real_module_fake, fake_not_real_function}}
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]).
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-ifdef(TEST).
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-include_lib("eunit/include/eunit.hrl").
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-endif.
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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, [{lager_test_backend, info}]),
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application:set_env(lager, error_logger_redirect, false),
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application:unset_env(lager, traces),
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lager:start(),
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%% There is a race condition between the application start up, lager logging its own
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%% start up condition and several tests that count messages or parse the output of
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%% tests. When the lager start up message wins the race, it causes these tests
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%% which parse output or count message arrivals to fail.
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%%
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%% We introduce a sleep here to allow `flush' to arrive *after* the start up
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%% message has been received and processed.
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%%
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%% This race condition was first exposed during the work on
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%% 4b5260c4524688b545cc12da6baa2dfa4f2afec9 which introduced the lager
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%% manager killer PR.
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timer:sleep(5),
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gen_event:call(lager_event, lager_test_backend, flush).
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cleanup(_) ->
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catch ets:delete(lager_config), %% kill the ets config table with fire
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application:stop(lager),
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application:stop(goldrush),
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error_logger:tty(true).
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transform_function_error_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, lager_test_backend:pop()),
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?assertEqual(0, lager_test_backend:count())
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end
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},
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{"Testing a function transform for a undefined function errors",
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fun() ->
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?assertError(undef, lager:warning("undefined message")),
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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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