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Merge pull request #22 from mururu/int-definition

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Fix int definition
This commit is contained in:
UENISHI Kota 2013-12-29 03:30:35 -08:00
commit 5eddde1828
2 changed files with 54 additions and 5 deletions
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6
src/msgpack_packer.erl
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@ -98,13 +98,13 @@ pack(Other, _) ->
pack_int(N) when N >= -32->
<< 2#111:3, N:5 >>;
%% int 8
pack_int(N) when N > -128 ->
pack_int(N) when N >= -128 ->
<< 16#D0:8, N:8/big-signed-integer-unit:1 >>;
%% int 16
pack_int(N) when N > -32768 ->
pack_int(N) when N >= -16#8000 ->
<< 16#D1:8, N:16/big-signed-integer-unit:1 >>;
%% int 32
pack_int(N) when (N band 16#FFFFFFFF) =:= N ->
pack_int(N) when N >= -16#80000000 ->
<< 16#D2:8, N:32/big-signed-integer-unit:1 >>;
%% int 64
pack_int(N) when N >= -16#8000000000000000 ->

53
test/msgpack_test.erl
View File

@ -232,11 +232,60 @@ map_test_()->
int_test_() ->
[
{"",
{"negative fixnum",
fun() ->
Term = -2147483649,
Term = -32,
Binary = pack(Term),
?assertEqual(1, byte_size(Binary)),
?assertEqual({ok, Term}, unpack(Binary))
end},
{"int 8",
fun() ->
Term = -33,
Binary = pack(Term),
?assertEqual(2, byte_size(Binary)),
?assertEqual({ok, Term}, unpack(Binary)),
Term2 = -128,
Binary2 = pack(Term2),
?assertEqual(2, byte_size(Binary2)),
?assertEqual({ok, Term2}, unpack(Binary2))
end},
{"int 16",
fun() ->
Term = -129,
Binary = pack(Term),
?assertEqual(3, byte_size(Binary)),
?assertEqual({ok, Term}, unpack(Binary)),
Term2 = -16#8000,
Binary2 = pack(Term2),
?assertEqual(3, byte_size(Binary2)),
?assertEqual({ok, Term2}, unpack(Binary2))
end},
{"int 32",
fun() ->
Term = -16#8001,
Binary = pack(Term),
?assertEqual(5, byte_size(Binary)),
?assertEqual({ok, Term}, unpack(Binary)),
Term2 = -16#80000000,
Binary2 = pack(Term2),
?assertEqual(5, byte_size(Binary2)),
?assertEqual({ok, Term2}, unpack(Binary2))
end},
{"int 64",
fun() ->
Term = -16#80000001,
Binary = pack(Term),
?assertEqual(9, byte_size(Binary)),
?assertEqual({ok, Term}, unpack(Binary)),
Term2 = -16#8000000000000000,
Binary2 = pack(Term2),
?assertEqual(9, byte_size(Binary2)),
?assertEqual({ok, Term2}, unpack(Binary2))
end}
].