%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1996-2016. All Rights Reserved.
%%
%% 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.
%%
%% %CopyrightEnd%
%%
-module(log_mf_h_SUITE).
-include_lib("common_test/include/ct.hrl").
-include_lib("kernel/include/file.hrl").
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2, test/1]).
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[test].
groups() ->
[].
init_per_suite(Config) ->
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
%%-----------------------------------------------------------------
%% This is actually very basic tests, maybe we could test some more
%% in the future...
%%-----------------------------------------------------------------
test(Config) when is_list(Config) ->
{ok, Pid} = gen_event:start_link(),
PrivDir = proplists:get_value(priv_dir, Config),
Log1 = PrivDir ++ "/log1",
ok = file:make_dir(Log1),
Args1 = log_mf_h:init(Log1, 500, 3),
gen_event:add_handler(Pid, log_mf_h, Args1),
generate(Pid, 200),
{ok, Files} = file:list_dir(Log1),
true = lists:member("1", Files),
true = lists:member("index", Files),
false = lists:member("2", Files),
generate(Pid, 2500),
%% The documentation doesn't guarantee that syncing one request
%% causes all previous ones to be finished too, but that seems to
%% be the case. We need to be sure that the files exist when we
%% look for them with 'list_dir'.
gen_event:sync_notify(Pid, "end"),
{ok, Files2} = file:list_dir(Log1),
true = lists:member("1", Files2),
true = lists:member("2", Files2),
true = lists:member("3", Files2),
false = lists:member("4", Files2),
true = lists:member("index", Files2),
{ok, #file_info{size=Size1,type=regular}} = file:read_file_info(Log1 ++ "/1"),
if Size1 > 500 -> ct:fail({too_big, Size1});
true -> ok end,
{ok, #file_info{size=Size2,type=regular}} = file:read_file_info(Log1 ++ "/2"),
if Size2 > 500 -> ct:fail({too_big, Size2});
true -> ok end,
{ok, #file_info{size=Size3,type=regular}} = file:read_file_info(Log1 ++ "/3"),
if Size3 > 500 -> ct:fail({too_big, Size3});
true -> ok end,
gen_event:delete_handler(Pid, log_mf_h, []),
{ok, Index} = read_index_file(Log1),
gen_event:add_handler(Pid, log_mf_h, Args1),
X = if Index == 3 -> 1; true -> Index + 1 end,
{ok, X} = read_index_file(Log1).
generate(Pid, Bytes) when Bytes > 32 ->
gen_event:notify(Pid, make_list(32, [])),
generate(Pid, Bytes - 32);
generate(_, _) -> ok.
make_list(0, Res) -> Res;
make_list(N, Res) -> make_list(N-1, [67 | Res]).
read_index_file(Dir) ->
case file:open(Dir ++ "/index", [read,raw]) of
{ok, Fd} ->
case catch file:read(Fd, 1) of
{ok, [Index]} -> {ok, Index};
_ -> error
end;
_ -> error
end.
