1 files changed, 92 insertions, 0 deletions
diff --git a/lib/stdlib/test/log_mf_h_SUITE.erl b/lib/stdlib/test/log_mf_h_SUITE.erl
new file mode 100644
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+++ b/lib/stdlib/test/log_mf_h_SUITE.erl
@@ -0,0 +1,92 @@
+%%
+%% %CopyrightBegin%
+%% 
+%% Copyright Ericsson AB 1996-2009. All Rights Reserved.
+%% 
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%% 
+%% 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.
+%% 
+%% %CopyrightEnd%
+%%
+-module(log_mf_h_SUITE).
+
+-include("test_server.hrl").
+-include_lib("kernel/include/file.hrl").
+
+-export([all/1, test/1]).
+
+all(suite) -> [test].
+
+
+%%-----------------------------------------------------------------
+%% This is actually very basic tests, maybe we could test some more
+%% in the future...
+%%-----------------------------------------------------------------
+
+test(Config) when is_list(Config) ->
+    ?line {ok, Pid} = gen_event:start_link(),
+    ?line PrivDir = ?config(priv_dir, Config),
+    Log1 = PrivDir ++ "/log1",
+    ?line 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),
+    ?line true = lists:member("1", Files),
+    ?line true = lists:member("index", Files),
+    ?line 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),
+    ?line true = lists:member("1", Files2),
+    ?line true = lists:member("2", Files2),
+    ?line true = lists:member("3", Files2),
+    ?line false = lists:member("4", Files2),
+    ?line true = lists:member("index", Files2),
+    ?line {ok, #file_info{size=Size1,type=regular}} = file:read_file_info(Log1 ++ "/1"),
+    ?line if Size1 > 500 -> test_server:fail({too_big, Size1});
+	     true -> ok end,
+    ?line {ok, #file_info{size=Size2,type=regular}} = file:read_file_info(Log1 ++ "/2"),
+    ?line if Size2 > 500 -> test_server:fail({too_big, Size2});
+	     true -> ok end,
+    ?line {ok, #file_info{size=Size3,type=regular}} = file:read_file_info(Log1 ++ "/3"),
+    ?line if Size3 > 500 -> test_server:fail({too_big, Size3});
+	     true -> ok end,
+    gen_event:delete_handler(Pid, log_mf_h, []),
+    ?line {ok, Index} = read_index_file(Log1),
+    gen_event:add_handler(Pid, log_mf_h, Args1),    
+    X = if Index == 3 -> 1; true -> Index + 1 end,
+    ?line {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.
+