| #include <assert.h> |
| #include <oer_support.c> |
| |
| static char buffer[128]; |
| |
| static int fill_buffer(const void *data, size_t size, void *app_key) { |
| size_t *offset = (size_t *)app_key; |
| assert(*offset + size < sizeof(buffer)); |
| memcpy(&buffer[*offset], data, size); |
| *offset += size; |
| return 0; |
| } |
| |
| #define CHECK(a, b) check_round_trip(__LINE__, a, b) |
| |
| static void |
| check_round_trip(int lineno, int ok, size_t length) { |
| fprintf(stderr, "%03d: Round-trip for %zu\n", lineno, length); |
| |
| /* Serialize */ |
| size_t enc_len = 0; |
| ssize_t enc_len_len = oer_serialize_length(length, fill_buffer, &enc_len); |
| assert(enc_len_len > 0); |
| assert(enc_len == (size_t)enc_len_len); |
| |
| /* Deserialize */ |
| size_t recovered_length = 0; |
| for(size_t part = 0; part < enc_len; part++) { |
| size_t ret = oer_fetch_length(buffer, part, &recovered_length); |
| assert(ret == 0); /* More data expected. */ |
| } |
| ssize_t dec_len = oer_fetch_length(buffer, enc_len, &recovered_length); |
| if(ok) { |
| assert(dec_len > 0); |
| assert((size_t)dec_len == enc_len); |
| if(recovered_length != length) { |
| fprintf(stderr, |
| "Round-trip failed %zu->%zu (encoded %zd, decoded %zd)\n", |
| length, recovered_length, enc_len, dec_len); |
| assert(recovered_length == length); |
| } |
| } else { |
| assert(dec_len == -1); |
| } |
| } |
| |
| int main() { |
| int bits64 = sizeof(size_t) > 4; |
| |
| CHECK(1, 0); |
| CHECK(1, 1); |
| CHECK(1, 127); |
| CHECK(1, 128); |
| CHECK(1, 129); |
| CHECK(1, 255); |
| CHECK(1, 256); |
| CHECK(1, 65534); |
| CHECK(1, 65535); |
| CHECK(1, 65536); |
| CHECK(1, 65538); |
| CHECK(1, 16000000); |
| CHECK(1, 16777216); |
| CHECK(bits64, 2147483648); |
| CHECK(bits64, 4294967295UL); |
| |
| } |
| |