libgit2/tests/core/encoding.c
David Turner aeb5ee5ab5 varint: Add varint encoding/decoding
This code is ported from git.git

Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: David Turner <dturner@twopensource.com>
2016-08-10 14:19:06 -04:00

40 lines
1.0 KiB
C

#include "clar_libgit2.h"
#include "varint.h"
void test_core_encoding__decode(void)
{
const unsigned char *buf = (unsigned char *)"AB";
size_t size;
cl_assert(git_decode_varint(buf, &size) == 65);
cl_assert(size == 1);
buf = (unsigned char *)"\xfe\xdc\xbaXY";
cl_assert(git_decode_varint(buf, &size) == 267869656);
cl_assert(size == 4);
buf = (unsigned char *)"\xaa\xaa\xfe\xdc\xbaXY";
cl_assert(git_decode_varint(buf, &size) == 1489279344088ULL);
cl_assert(size == 6);
buf = (unsigned char *)"\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xfe\xdc\xbaXY";
cl_assert(git_decode_varint(buf, &size) == 0);
cl_assert(size == 0);
}
void test_core_encoding__encode(void)
{
unsigned char buf[100];
cl_assert(git_encode_varint(buf, 100, 65) == 1);
cl_assert(buf[0] == 'A');
cl_assert(git_encode_varint(buf, 100, 267869656) == 4);
cl_assert(!memcmp(buf, "\xfe\xdc\xbaX", 4));
cl_assert(git_encode_varint(buf, 100, 1489279344088ULL) == 6);
cl_assert(!memcmp(buf, "\xaa\xaa\xfe\xdc\xbaX", 6));
cl_assert(git_encode_varint(buf, 1, 1489279344088ULL) == -1);
}