[Tarantool-patches] [PATCH] msgpack: print mp_exp type as signed integer

[Aleksandr Lyapunov]

Hi! thanks for the patch, LGTM

On 01.09.2020 13:31, Ilya Kosarev wrote:
> MsgPack extension types allow applications to define
> application-specific types. They consist of an 8-bit signed integer and
> a byte array where the integer represents a kind of types and the byte
> array represents data. Types from 0 to 127 are application-specific
> types and types from -128 to -1 are reserved for predefined types.
> However, extension types were printed as unsigned integers. Now it is
> fixed and extension types are being printed in a correct way as signed
> integers. Also the typo in word "Unsupported" was fixed. According test
> case is introduced.
>
> Closes #5016
> ---
> Branch: https://github.com/tarantool/tarantool/tree/i.kosarev/gh-5016-fix-extension-decoding
> Issue: https://github.com/tarantool/tarantool/issues/5016
>
>   src/box/lua/init.c            |  2 +-
>   src/lua/msgpack.c             |  2 +-
>   test/app-tap/msgpack.test.lua | 11 ++++++++---
>   3 files changed, 10 insertions(+), 5 deletions(-)
>
> diff --git a/src/box/lua/init.c b/src/box/lua/init.c
> index cac62b958d..d0316ef867 100644
> --- a/src/box/lua/init.c
> +++ b/src/box/lua/init.c
> @@ -431,7 +431,7 @@ luamp_decode_extension_box(struct lua_State *L, const char **data)
>   	uint32_t len = mp_decode_extl(data, &ext_type);
>   
>   	if (ext_type != MP_ERROR) {
> -		luaL_error(L, "Unsuported MsgPack extension type: %u",
> +		luaL_error(L, "Unsupported MsgPack extension type: %d",
>   			   ext_type);
>   		return;
>   	}
> diff --git a/src/lua/msgpack.c b/src/lua/msgpack.c
> index 128cc5d2ff..4c4ada39cb 100644
> --- a/src/lua/msgpack.c
> +++ b/src/lua/msgpack.c
> @@ -94,7 +94,7 @@ luamp_decode_extension_default(struct lua_State *L, const char **data)
>   {
>   	int8_t ext_type;
>   	mp_decode_extl(data, &ext_type);
> -	luaL_error(L, "msgpack.decode: unsupported extension: %u", ext_type);
> +	luaL_error(L, "msgpack.decode: unsupported extension: %d", ext_type);
>   }
>   
>   
> diff --git a/test/app-tap/msgpack.test.lua b/test/app-tap/msgpack.test.lua
> index 2d62850fb3..3f7ca2c3e7 100755
> --- a/test/app-tap/msgpack.test.lua
> +++ b/test/app-tap/msgpack.test.lua
> @@ -36,7 +36,7 @@ local function test_offsets(test, s)
>   end
>   
>   local function test_misc(test, s)
> -    test:plan(5)
> +    test:plan(8)
>       local ffi = require('ffi')
>       local buffer = require('buffer')
>       local buf = ffi.cast("const char *", "\x91\x01")
> @@ -48,8 +48,13 @@ local function test_misc(test, s)
>       test:is_deeply(result, {1}, "ibuf_decode result")
>       test:ok(not st and e:match("null"), "null ibuf")
>       st, e = pcall(s.decode, "\xd4\x0f\x00")
> -    test:ok(not st and e:match("Unsuported MsgPack extension type: 15"),
> -                               "unsupported extension decode")
> +    test:is(e, "Unsupported MsgPack extension type: 15",
> +               "decode result for \\xd4\\x0f\\x00: " .. e)
> +    test:ok(not st, "unsupported extension decode")
> +    st, e = pcall(s.decode, "\xd4\xfe\x00")
> +    test:is(e, "Unsupported MsgPack extension type: -2",
> +               "decode result for \\xd4\\xfe\\x00: " .. e)
> +    test:ok(not st, "unsupported extension decode")
>   end
>   
>   local function test_decode_array_map_header(test, s)