diff --git a/erlang/OMakefile b/erlang/OMakefile
index ee72f784..34c590f0 100644
--- a/erlang/OMakefile
+++ b/erlang/OMakefile
@@ -36,7 +36,7 @@ msgpack.beam: msgpack.erl
 	erlc $<
 
 test: msgpack.beam
-	erl -s msgpack test -s init stop
+	erl -noshell -s msgpack test -s init stop
 
 clean:
 	-rm *.beam
diff --git a/erlang/README.md b/erlang/README.md
index 50d446d6..8616d5ec 100644
--- a/erlang/README.md
+++ b/erlang/README.md
@@ -2,18 +2,8 @@ MessagePack for Erlang
 ======================
 Binary-based efficient object serialization library.
 
-## Status 
+see wiki ( http://redmine.msgpack.org/projects/msgpack/wiki/QuickStartErlang ) for details
 
-still in development.
+# Status
 
-TODOs:
- - decide string specification.
-
-## Installation
-
-## Example
-
-## License
-
-
- - 
+0.1.0 released.
diff --git a/erlang/msgpack.erl b/erlang/msgpack.erl
index ca9769e6..a168b553 100644
--- a/erlang/msgpack.erl
+++ b/erlang/msgpack.erl
@@ -18,38 +18,91 @@
 -module(msgpack).
 -author('kuenishi+msgpack@gmail.com').
 
-%% tuples, atoms are not supported.  lists, integers, double, and so on.
+%% tuples, atoms are not supported. lists, integers, double, and so on.
 %% see http://msgpack.sourceforge.jp/spec for
 %% supported formats. APIs are almost compatible
 %% for C API (http://msgpack.sourceforge.jp/c:doc)
 %% except buffering functions (both copying and zero-copying).
--export([pack/1, unpack/1, unpack_all/1, test/0]).
-
--include_lib("eunit/include/eunit.hrl").
+-export([pack/1, unpack/1, unpack_all/1]).
+-export([pack_map/1]).
 
 % compile:
 % erl> c(msgpack).
 % erl> S = <some term>.
 % erl> {S, <<>>} = msgpack:unpack( msgpack:pack(S) ).
+-type reason() ::  enomem | badarg | no_code_matches.
+-type msgpack_term() :: [msgpack_term()] | {[{msgpack_term(),msgpack_term()}]} | integer() | float().
 
+% ===== external APIs ===== %
+-spec pack(Term::msgpack_term()) -> binary().
+pack(O) when is_integer(O) andalso O < 0 ->
+    pack_int_(O);
+pack(O) when is_integer(O) ->
+    pack_uint_(O);
+pack(O) when is_float(O) ->
+    pack_double(O);
+pack(nil) ->
+    pack_nil();
+pack(Bool) when is_atom(Bool) ->
+    pack_bool(Bool);
+pack(Bin) when is_binary(Bin) ->
+    pack_raw(Bin);
+pack(List)  when is_list(List) ->
+    pack_array(List);
+pack({Map}) when is_list(Map) ->
+    pack_map(Map);
+pack(Map) when is_tuple(Map), element(1,Map)=:=dict ->
+    pack_map(dict:to_list(Map));
+pack(_O) ->
+    {error, undefined}.
 
--type reason() ::  enomem.
+% unpacking.
+% if failed in decoding and not end, get more data
+% and feed more Bin into this function.
+% TODO: error case for imcomplete format when short for any type formats.
+-spec unpack( binary() )->
+    {msgpack_term(), binary()} | {more, non_neg_integer()} | {error, reason()}.
+unpack(Bin) when not is_binary(Bin)->
+    {error, badarg};
+unpack(Bin) when bit_size(Bin) >= 8 ->
+    << Flag:8/unsigned-integer, Payload/binary >> = Bin,
+    unpack_(Flag, Payload);
+unpack(<<>>)-> % when bit_size(Bin) < 8 ->
+    {more, 1}.
+
+-spec unpack_all( binary() ) -> [msgpack_term()].
+unpack_all(Data)->
+    case unpack(Data) of
+	{ Term, Binary } when bit_size(Binary) =:= 0 ->
+	    [Term];
+	{ Term, Binary } when is_binary(Binary) ->
+	    [Term|unpack_all(Binary)]
+    end.
+
+pack_map(M)->
+    case length(M) of
+	Len when Len < 16 ->
+	    << 2#1000:4, Len:4/integer-unit:1, (pack_map_(M, <<>>))/binary >>;
+	Len when Len < 16#10000 -> % 65536
+	    << 16#DE:8, Len:16/big-unsigned-integer-unit:1, (pack_map_(M, <<>>))/binary >>;
+	Len ->
+	    << 16#DF:8, Len:32/big-unsigned-integer-unit:1, (pack_map_(M, <<>>))/binary >>
+    end.
+
+% ===== internal APIs ===== %
 
 % positive fixnum
-pack_uint_(N) when is_integer( N ) , N < 128 ->  
+pack_uint_(N) when is_integer( N ) , N < 128 ->
     << 2#0:1, N:7 >>;
 % uint 8
 pack_uint_( N ) when is_integer( N ) andalso N < 256 ->
     << 16#CC:8, N:8 >>;
-
 % uint 16
 pack_uint_( N ) when is_integer( N ) andalso N < 65536 ->
     << 16#CD:8, N:16/big-unsigned-integer-unit:1 >>;
-
 % uint 32
 pack_uint_( N ) when is_integer( N ) andalso N < 16#FFFFFFFF->
     << 16#CE:8, N:32/big-unsigned-integer-unit:1 >>;
-
 % uint 64
 pack_uint_( N ) when is_integer( N )->
     << 16#CF:8, N:64/big-unsigned-integer-unit:1 >>.
@@ -58,21 +111,20 @@ pack_uint_( N ) when is_integer( N )->
 pack_int_( N ) when is_integer( N ) , N >= -32->
     << 2#111:3, N:5 >>;
 % int 8
-pack_int_( N ) when is_integer( N ) , N >= -256 ->
-    << 16#D0:8, N:8 >>;
+pack_int_( N ) when is_integer( N ) , N > -128 ->
+    << 16#D0:8, N:8/big-signed-integer-unit:1 >>;
 % int 16
-pack_int_( N ) when is_integer( N ), N >= -65536 ->
+pack_int_( N ) when is_integer( N ), N > -32768 ->
     << 16#D1:8, N:16/big-signed-integer-unit:1 >>;
 % int 32
-pack_int_( N ) when is_integer( N ), N >= -16#FFFFFFFF ->
+pack_int_( N ) when is_integer( N ), N > -16#FFFFFFFF ->
     << 16#D2:8, N:32/big-signed-integer-unit:1 >>;
 % int 64
 pack_int_( N ) when is_integer( N )->
     << 16#D3:8, N:64/big-signed-integer-unit:1 >>.
 
 % nil
-pack_nil()->
-    << 16#C0:8 >>.
+pack_nil()->    << 16#C0:8 >>.
 % pack_true / pack_false
 pack_bool(true)->    << 16#C3:8 >>;
 pack_bool(false)->   << 16#C2:8 >>.
@@ -85,16 +137,12 @@ pack_bool(false)->   << 16#C2:8 >>.
 pack_double(F) when is_float(F)->
     << 16#CB:8, F:64/big-float-unit:1 >>.
 
-power(N,0) when is_integer(N) -> 1;
-power(N,D) when is_integer(N) and is_integer(D) -> N * power(N, D-1).
-
 % raw bytes
 pack_raw(Bin) when is_binary(Bin)->
-    MaxLen = power(2,16),
     case byte_size(Bin) of
 	Len when Len < 6->
 	    << 2#101:3, Len:5, Bin/binary >>;
-	Len when Len < MaxLen ->
+	Len when Len < 16#10000 -> % 65536
 	    << 16#DA:8, Len:16/big-unsigned-integer-unit:1, Bin/binary >>;
 	Len ->
 	    << 16#DB:8, Len:32/big-unsigned-integer-unit:1, Bin/binary >>
@@ -102,80 +150,53 @@ pack_raw(Bin) when is_binary(Bin)->
 
 % list / tuple
 pack_array(L) when is_list(L)->
-    MaxLen = power(2,16),
     case length(L) of
  	Len when Len < 16 ->
- 	    << 2#1001:4, Len:4/integer-unit:1, (pack_array_(L))/binary >>;
-	Len when Len < MaxLen ->
-	    << 16#DC:8, Len:16/big-unsigned-integer-unit:1,(pack_array_(L))/binary >>;
+ 	    << 2#1001:4, Len:4/integer-unit:1, (pack_array_(L, <<>>))/binary >>;
+	Len when Len < 16#10000 -> % 65536
+	    << 16#DC:8, Len:16/big-unsigned-integer-unit:1,(pack_array_(L, <<>>))/binary >>;
 	Len ->
-	    << 16#DD:8, Len:32/big-unsigned-integer-unit:1,(pack_array_(L))/binary >>
+	    << 16#DD:8, Len:32/big-unsigned-integer-unit:1,(pack_array_(L, <<>>))/binary >>
     end.
-pack_array_([])-> <<>>;
-pack_array_([Head|Tail])->
-    << (pack_object(Head))/binary, (pack_array_(Tail))/binary >>.
+pack_array_([], Acc) -> Acc;
+pack_array_([Head|Tail], Acc) ->
+    pack_array_(Tail, <<Acc/binary,  (pack(Head))/binary>>).
 
-unpack_array_(<<>>, 0)-> [];
-unpack_array_(Remain, 0) when is_binary(Remain)-> [Remain];
-unpack_array_(Bin, RestLen) when is_binary(Bin)->
-    {Term, Rest} = unpack(Bin),
-    [Term|unpack_array_(Rest, RestLen-1)].
-    
-pack_map({dict,M})->
-    MaxLen = power(2,16),
-    case dict:size(M) of
-	Len when Len < 16 ->
- 	    << 2#1001:4, Len:4/integer-unit:1, (pack_map_(dict:to_list(M))) >>;
-	Len when Len < MaxLen ->
-	    << 16#DE:8, Len:16/big-unsigned-integer-unit:1, (pack_map_(dict:to_list(M))) >>;
-	Len ->
-	    << 16#DF:8, Len:32/big-unsigned-integer-unit:1, (pack_map_(dict:to_list(M))) >>
+% FIXME! this should be tail-recursive and without lists:reverse/1
+unpack_array_(<<>>, 0, RetList)   -> {lists:reverse(RetList), <<>>};
+unpack_array_(Remain, 0, RetList) when is_binary(Remain)-> {lists:reverse(RetList), Remain};
+unpack_array_(<<>>, RestLen, _RetList) when RestLen > 0 ->  {more, RestLen};
+unpack_array_(Bin, RestLen, RetList) when is_binary(Bin)->
+    case unpack(Bin) of
+	{more, Len} -> {more, Len+RestLen-1};
+	{Term, Rest}-> unpack_array_(Rest, RestLen-1, [Term|RetList])
     end.
 
-pack_map_([])-> <<>>;
-pack_map_([{Key,Value}|Tail]) ->
-    << (pack_object(Key)),(pack_object(Value)),(pack_map_(Tail)) >>.
+pack_map_([], Acc) -> Acc;
+pack_map_([{Key,Value}|Tail], Acc) ->
+    pack_map_(Tail, << Acc/binary, (pack(Key))/binary, (pack(Value))/binary>>).
 
-unpack_map_(<<>>, 0)-> [];
-unpack_map_(Bin,  0) when is_binary(Bin)-> [Bin];
-unpack_map_(Bin, Len) when is_binary(Bin) and is_integer(Len) ->
-    { Key, Rest } = unpack(Bin),
-    { Value, Rest2 } = unpack(Rest),
-    [{Key,Value}|unpack_map_(Rest2,Len-1)].
+% FIXME: write test for unpack_map/1
+-spec unpack_map_(binary(), non_neg_integer(), [{term(), msgpack_term()}])->
+    {more, non_neg_integer()} | { any(), binary()}.
+unpack_map_(Bin,  0,  Acc) when is_binary(Bin) -> {{lists:reverse(Acc)}, Bin};
+unpack_map_(Bin, Len, Acc) when is_binary(Bin) and is_integer(Len) ->
+    case unpack(Bin) of
+	{ more, MoreLen } -> { more, MoreLen+Len-1 };
+	{ Key, Rest } ->
+	    case unpack(Rest) of
+		{more, MoreLen} -> { more, MoreLen+Len-1 };
+		{ Value, Rest2 } ->
+		    unpack_map_(Rest2,Len-1,[{Key,Value}|Acc])
+	    end
+    end.
 
-pack_object(O) when is_integer(O) andalso O < 0 ->
-    pack_int_(O);
-pack_object(O) when is_integer(O) ->
-    pack_uint_(O);
-pack_object(O) when is_float(O)->
-    pack_double(O);
-pack_object(nil) ->
-    pack_nil();
-pack_object(Bool) when is_atom(Bool) ->
-    pack_bool(Bool);
-pack_object(Bin) when is_binary(Bin)->
-    pack_raw(Bin);
-pack_object(List)  when is_list(List)->
-    pack_array(List);
-pack_object({dict, Map})->
-    pack_map({dict, Map});
-pack_object(_) ->
-    undefined.
-
-pack(Obj)->
-    pack_object(Obj).
-
-
-% unpacking.
-% if failed in decoding and not end, get more data 
-% and feed more Bin into this function.
-% TODO: error case for imcomplete format when short for any type formats.
--spec unpack( binary() )-> {term(), binary()} | {more, non_neg_integer()} | {error, reason()}.
-unpack(Bin) when not is_binary(Bin)->
-    {error, badard};
-unpack(Bin) when bit_size(Bin) >= 8 ->
-    << Flag:8/unsigned-integer, Payload/binary >> = Bin,
-    case Flag of 
+% {more, <remaining byte size>
+-spec unpack_(Flag::integer(), Payload::binary())->
+    {more, pos_integer()} | {msgpack_term(), binary()} | {error, reason()}.
+unpack_(Flag, Payload)->
+    PayloadLen = byte_size(Payload),
+    case Flag of
 	16#C0 ->
 	    {nil, Payload};
 	16#C2 ->
@@ -183,86 +204,101 @@ unpack(Bin) when bit_size(Bin) >= 8 ->
 	16#C3 ->
 	    {true, Payload};
 
-	16#CA -> % 32bit float
+	16#CA when PayloadLen >= 4 -> % 32bit float
 	    << Return:32/float-unit:1, Rest/binary >> = Payload,
 	    {Return, Rest};
-	16#CB -> % 64bit float
+	16#CA ->
+	    {more, 4-PayloadLen}; % at least more
+
+	16#CB when PayloadLen >= 8 -> % 64bit float
 	    << Return:64/float-unit:1, Rest/binary >> = Payload,
 	    {Return, Rest};
+	16#CB ->
+	    {more, 8-PayloadLen};
 
-	16#CC -> % uint 8
+	16#CC when PayloadLen >= 1 -> % uint 8
 	    << Int:8/unsigned-integer, Rest/binary >> = Payload,
 	    {Int, Rest};
-	16#CD -> % uint 16
+	16#CC ->
+	    {more, 1};
+
+	16#CD when PayloadLen >= 2 -> % uint 16
 	    << Int:16/big-unsigned-integer-unit:1, Rest/binary >> = Payload,
 	    {Int, Rest};
-	16#CE ->
+	16#CD ->
+	    {more, 2-PayloadLen};
+
+	16#CE when PayloadLen >= 4 ->
 	    << Int:32/big-unsigned-integer-unit:1, Rest/binary >> = Payload,
 	    {Int, Rest};
-	16#CF ->
+	16#CE ->
+	    {more, 4-PayloadLen}; % at least more
+
+	16#CF when PayloadLen >= 8 ->
 	    << Int:64/big-unsigned-integer-unit:1, Rest/binary >> = Payload,
 	    {Int, Rest};
+	16#CF ->
+	    {more, 8-PayloadLen};
 
-	16#D0 -> % int 8
+	16#D0 when PayloadLen >= 1 -> % int 8
 	    << Int:8/big-signed-integer-unit:1, Rest/binary >> = Payload,
 	    {Int, Rest};
-	16#D1 -> % int 16
+	16#D0 ->
+	    {more, 1};
+
+	16#D1 when PayloadLen >= 2 -> % int 16
 	    << Int:16/big-signed-integer-unit:1, Rest/binary >> = Payload,
 	    {Int, Rest};
-	16#D2 -> % int 32
+	16#D1 ->
+	    {more, 2-PayloadLen};
+
+	16#D2 when PayloadLen >= 4 -> % int 32
 	    << Int:32/big-signed-integer-unit:1, Rest/binary >> = Payload,
 	    {Int, Rest};
-	16#D3 -> % int 64
+	16#D2 ->
+	    {more, 4-PayloadLen};
+
+	16#D3 when PayloadLen >= 8 -> % int 64
 	    << Int:64/big-signed-integer-unit:1, Rest/binary >> = Payload,
 	    {Int, Rest};
-	16#DA -> % raw 16
+	16#D3 ->
+	    {more, 8-PayloadLen};
+
+	16#DA when PayloadLen >= 2 -> % raw 16
 	    << Len:16/unsigned-integer-unit:1, Rest/binary >> = Payload,
 	    << Return:Len/binary, Remain/binary >> = Rest,
 	    {Return, Remain};
-	16#DB -> % raw 32
+	16#DA ->
+	    {more, 16-PayloadLen};
+
+	16#DB when PayloadLen >= 4 -> % raw 32
 	    << Len:32/big-unsigned-integer-unit:1, Rest/binary >> = Payload,
 	    << Return:Len/binary, Remain/binary >> = Rest,
 	    {Return, Remain};
-	16#DC -> % array 16
+	16#DB ->
+	    {more, 4-PayloadLen};
+
+	16#DC when PayloadLen >= 2 -> % array 16
 	    << Len:16/big-unsigned-integer-unit:1, Rest/binary >> = Payload,
-	    Array=unpack_array_(Rest, Len),
-	    case length(Array) of
-		Len -> {Array, <<>>};
-		_ -> 
-		    {Return, RemainRest} = lists:split(Len, Array),
-		    [Remain] = RemainRest,
-		    {Return, Remain}
-	    end;
-	16#DD -> % array 32
+	    unpack_array_(Rest, Len, []);
+	16#DC ->
+	    {more, 2-PayloadLen};
+
+	16#DD when PayloadLen >= 4 -> % array 32
 	    << Len:32/big-unsigned-integer-unit:1, Rest/binary >> = Payload,
-	    Array=unpack_array_(Rest, Len),
-	    case length(Array) of
-		Len -> {Array, <<>>};
-		_ -> 
-		    {Return, RemainRest} = lists:split(Len, Array),
-		    [Remain] = RemainRest,
-		    {Return, Remain}
-	    end;
-	16#DE -> % map 16
+	    unpack_array_(Rest, Len, []);
+	16#DD ->
+	    {more, 4-PayloadLen};
+
+	16#DE when PayloadLen >= 2 -> % map 16
 	    << Len:16/big-unsigned-integer-unit:1, Rest/binary >> = Payload,
-	    Array=unpack_map_(Rest, Len),
-	    case length(Array) of
-		Len -> { dict:from_list(Array), <<>>};
-		_ -> 
-		    {Return, RemainRest} = lists:split(Len, Array),
-		    [Remain] = RemainRest,
-		    {dict:from_list(Return), Remain}
-	    end;
-	16#DF -> % map 32
+	    unpack_map_(Rest, Len, []);
+	16#DE ->
+	    {more, 2-PayloadLen};
+
+	16#DF when PayloadLen >= 4 -> % map 32
 	    << Len:32/big-unsigned-integer-unit:1, Rest/binary >> = Payload,
-	    Array=unpack_map_(Rest, Len),
-	    case length(Array) of
-		Len -> { dict:from_list(Array), <<>>};
-		_ -> 
-		    {Return, RemainRest} = lists:split(Len, Array),
-		    [Remain] = RemainRest,
-		    {dict:from_list(Return), Remain}
-	    end;
+	    unpack_map_(Rest, Len, []);
 
 	% positive fixnum
 	Code when Code >= 2#00000000, Code < 2#10000000->
@@ -273,7 +309,7 @@ unpack(Bin) when bit_size(Bin) >= 8 ->
 	    {(Code - 16#100), Payload};
 
 	Code when Code >= 2#10100000 , Code < 2#11000000 ->
-%	 101XXXXX for FixRaw 
+%	 101XXXXX for FixRaw
 	    Len = Code rem 2#10100000,
 	    << Return:Len/binary, Remain/binary >> = Payload,
 	    {Return, Remain};
@@ -281,52 +317,39 @@ unpack(Bin) when bit_size(Bin) >= 8 ->
 	Code when Code >= 2#10010000 , Code < 2#10100000 ->
 %        1001XXXX for FixArray
 	    Len = Code rem 2#10010000,
-	    Array=unpack_array_(Payload, Len),
-	    case length(Array) of
-		Len -> { Array, <<>>};
-		_ -> 
-		    {Return, RemainRest} = lists:split(Len, Array),
-		    [Remain] = RemainRest,
-		    {Return, Remain}
-	    end;
+	    unpack_array_(Payload, Len, []);
 
 	Code when Code >= 2#10000000 , Code < 2#10010000 ->
 %        1000XXXX for FixMap
 	    Len = Code rem 2#10000000,
-	    Array=unpack_map_(Payload, Len),
-	    case length(Array) of
-		Len -> { dict:from_list(Array), <<>>};
-		_ -> 
-		    {Return, RemainRest} = lists:split(Len, Array),
-		    [Remain] = RemainRest,
-		    {dict:from_list(Return), Remain}
-	    end;
+	    unpack_map_(Payload, Len, []);
 
 	_Other ->
-	    erlang:display(_Other),
 	    {error, no_code_matches}
-    end;
-unpack(_)-> % when bit_size(Bin) < 8 ->
-    {more, 8}.
-    
-unpack_all(Data)->
-    case unpack(Data) of
-	{ Term, Binary } when bit_size(Binary) =:= 0 -> 
-	    [Term];
-	{ Term, Binary } when is_binary(Binary) ->
-	    [Term|unpack_all(Binary)]
     end.
 
+% ===== test codes ===== %
+-include_lib("eunit/include/eunit.hrl").
 -ifdef(EUNIT).
 
+compare_all([], [])-> ok;
+compare_all([], R)-> {toomuchrhs, R};
+compare_all(L, [])-> {toomuchlhs, L};
+compare_all([LH|LTL], [RH|RTL]) ->
+    LH=RH,
+    compare_all(LTL, RTL).
+
 test_data()->
-    [0, 1, 2, 123, 512, 1230, 678908, 16#FFFFFFFFFF,
+    [true, false, nil,
+     0, 1, 2, 123, 512, 1230, 678908, 16#FFFFFFFFFF,
      -1, -23, -512, -1230, -567898, -16#FFFFFFFFFF,
      123.123, -234.4355, 1.0e-34, 1.0e64,
      [23, 234, 0.23],
-     "hogehoge", "243546rf7g68h798j",
+     <<"hogehoge">>, <<"243546rf7g68h798j", 0, 23, 255>>,
      <<"hoasfdafdas][">>,
-     [0,42,"sum", [1,2]], [1,42, nil, [3]]
+     [0,42, <<"sum">>, [1,2]], [1,42, nil, [3]],
+     -234, -40000, -16#10000000, -16#100000000,
+     42
     ].
 
 basic_test()->
@@ -339,34 +362,66 @@ port_test()->
     {[Tests],<<>>} = msgpack:unpack(msgpack:pack([Tests])),
     Port = open_port({spawn, "ruby ../test/crosslang.rb"}, [binary]),
     true = port_command(Port, msgpack:pack(Tests) ),
-    %Port ! {self, {command, msgpack:pack(Tests)}}, ... not owner
     receive
 	{Port, {data, Data}}->  {Tests, <<>>}=msgpack:unpack(Data)
     after 1024-> ?assert(false)   end,
     port_close(Port).
 
+test_p(Len,Term,OrigBin,Len) ->
+    {Term, <<>>}=msgpack:unpack(OrigBin);
+test_p(I,_,OrigBin,Len) when I < Len->
+    <<Bin:I/binary, _/binary>> = OrigBin,
+    {more, N}=msgpack:unpack(Bin),
+    ?assert(0 < N),
+    ?assert(N < Len).
+
+partial_test()-> % error handling test.
+    Term = lists:seq(0, 45),
+    Bin=msgpack:pack(Term),
+    BinLen = byte_size(Bin),
+    [test_p(X, Term, Bin, BinLen) || X <- lists:seq(0,BinLen)].
+
+long_test()->
+    Longer = lists:seq(0, 655),
+%    Longest = lists:seq(0,12345),
+    {Longer, <<>>} = msgpack:unpack(msgpack:pack(Longer)),
+%    {Longest, <<>>} = msgpack:unpack(msgpack:pack(Longest)).
+    ok.
+
+map_test()->
+    Ints = lists:seq(0, 65),
+    Map = {[ {X, X*2} || X <- Ints ] ++ [{<<"hage">>, 324}, {43542, [nil, true, false]}]},
+    {Map2, <<>>} = msgpack:unpack(msgpack:pack(Map)),
+    ?assertEqual(Map, Map2),
+    ok.
+
 unknown_test()->
     Tests = [0, 1, 2, 123, 512, 1230, 678908,
 	     -1, -23, -512, -1230, -567898,
-%	     "hogehoge", "243546rf7g68h798j",
-	     123.123 %-234.4355, 1.0e-34, 1.0e64,
-%	     [23, 234, 0.23]
-%	     [0,42,"sum", [1,2]], [1,42, nil, [3]]
+	     <<"hogehoge">>, <<"243546rf7g68h798j">>,
+	     123.123,
+	     -234.4355, 1.0e-34, 1.0e64,
+	     [23, 234, 0.23],
+	     [0,42,<<"sum">>, [1,2]], [1,42, nil, [3]],
+	     {[{1,2},{<<"hoge">>,nil}]},
+	     -234, -50000,
+	     42
 	    ],
     Port = open_port({spawn, "ruby testcase_generator.rb"}, [binary]),
-    %Port ! {self, {command, msgpack:pack(Tests)}}, ... not owner
     receive
 	{Port, {data, Data}}->
-	    Tests=msgpack:unpack_all(Data)
-%	    io:format("~p~n", [Tests])
+	    compare_all(Tests, msgpack:unpack_all(Data))
     after 1024-> ?assert(false)   end,
     port_close(Port).
 
 test_([]) -> 0;
-test_([S|Rest])->
-    Pack = msgpack:pack(S),
-%    io:format("testing: ~p => ~p~n", [S, Pack]),
-    {S, <<>>} = msgpack:unpack( Pack ),
+test_([Before|Rest])->
+    Pack = msgpack:pack(Before),
+    {After, <<>>} = msgpack:unpack( Pack ),
+    ?assertEqual(Before, After),
     1+test_(Rest).
 
+other_test()->
+    {more,1}=msgpack:unpack(<<>>).
+
 -endif.
diff --git a/erlang/testcase_generator.rb b/erlang/testcase_generator.rb
index a173790a..8445bdd5 100644
--- a/erlang/testcase_generator.rb
+++ b/erlang/testcase_generator.rb
@@ -39,10 +39,14 @@ end
 
 objs = [0, 1, 2, 123, 512, 1230, 678908,
         -1, -23, -512, -1230, -567898,
-#        "hogehoge", "243546rf7g68h798j",
-        123.123, #-234.4355, 1.0e-34, 1.0e64,
-#        [23, 234, 0.23]
-#        [0,42,"sum", [1,2]], [1,42, nil, [3]]
+        "hogehoge", "243546rf7g68h798j",
+        123.123,
+       -234.4355, 1.0e-34, 1.0e64,
+        [23, 234, 0.23],
+        [0,42,"sum", [1,2]], [1,42, nil, [3]],
+        { 1 => 2, "hoge" => nil },
+        -234, -50000,
+        42
        ]
 begin
   objs.each do |obj|
diff --git a/python/msgpack/__init__.py b/python/msgpack/__init__.py
index 797b29c2..26bd2dd4 100644
--- a/python/msgpack/__init__.py
+++ b/python/msgpack/__init__.py
@@ -1,3 +1,10 @@
 # coding: utf-8
 from _msgpack import *
 
+# alias for compatibility to simplejson/marshal/pickle.
+load = unpack
+loads = unpackb
+
+dump = pack
+dumps = packb
+
diff --git a/python/setup.py b/python/setup.py
index 8d8a6f45..64e71ede 100755
--- a/python/setup.py
+++ b/python/setup.py
@@ -14,7 +14,7 @@ except ImportError:
     from distutils.command.build_ext import build_ext
     have_cython = False
 
-version = '0.1.3'
+version = '0.1.4'
 
 # take care of extension modules.
 if have_cython: