From 69c6a41ffb878ef98c9378ed4b1634a404cfaa7f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 02:53:35 +0200 Subject: Adding upstream version 2.7.6. Signed-off-by: Daniel Baumann --- tests/libdnssec/test_shared_bignum.c | 128 +++++++++++++++++++++++++++++++++++ 1 file changed, 128 insertions(+) create mode 100644 tests/libdnssec/test_shared_bignum.c (limited to 'tests/libdnssec/test_shared_bignum.c') diff --git a/tests/libdnssec/test_shared_bignum.c b/tests/libdnssec/test_shared_bignum.c new file mode 100644 index 0000000..0e8f8d5 --- /dev/null +++ b/tests/libdnssec/test_shared_bignum.c @@ -0,0 +1,128 @@ +/* Copyright (C) 2018 CZ.NIC, z.s.p.o. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . +*/ + +#include +#include + +#include "bignum.h" +#include "binary.h" + +#define bin_init(array) { .data = array, .size = sizeof(array) } + +#define test_size(value, usize, ssize, msg) \ + dnssec_binary_t __bin = bin_init(value); \ + is_int(usize, bignum_size_u(&__bin), "bignum_size_u, " msg); \ + is_int(ssize, bignum_size_s(&__bin), "bignum_size_s, " msg) + +#define test_write(num, expect, msg) \ + uint8_t __buffer[sizeof(expect)]; \ + memset(__buffer, 0xaa, sizeof(__buffer)); \ + wire_ctx_t __ctx = wire_ctx_init(__buffer, sizeof(expect)); \ + dnssec_binary_t __num = bin_init(num); \ + dnssec_binary_t __exp = bin_init(expect); \ + bignum_write(&__ctx, sizeof(expect), &__num); \ + dnssec_binary_t __dst = bin_init(__buffer); \ + ok(dnssec_binary_cmp(&__dst, &__exp) == 0, "bignum_write, " msg) + +int main(int argc, char *argv[]) +{ + plan_lazy(); + + { + uint8_t num[] = { }; + test_size(num, 1, 1, "empty string"); + } + + { + uint8_t num[] = { 0x00 }; + test_size(num, 1, 1, "zero"); + } + + { + uint8_t num[] = { 0x00, 0x00, 0x00 }; + test_size(num, 1, 1, "long zero"); + } + + { + uint8_t num[] = { 0x01, 0x02, 0x03 }; + test_size(num, 3, 3, "no MSB"); + } + + { + uint8_t num[] = { 0x7f, 0xff, 0x00, 0x00, 0x00 }; + test_size(num, 5, 5, "no MSB but all other bits"); + } + + { + uint8_t num[] = { 0x84, 0x42 }; + test_size(num, 2, 3, "MSB"); + } + + { + uint8_t num[] = { 0x00, 0x84, 0x42 }; + test_size(num, 2, 3, "MSB and leading zero"); + } + + { + uint8_t num[] = { 0x00, 0x00, 0x00, 0x00, 0xfc, 0xe1, 0xda }; + test_size(num, 3, 4, "MSB, many leading zeroes"); + } + + { + uint8_t num[] = { 0x00, 0x00, 0x00, 0x01 }; + test_size(num, 1, 1, "no MSB, many leading zeroes"); + } + + // test writing + + { + uint8_t num[] = { }; + uint8_t exp[] = { 0x00 }; + test_write(num, exp, "empty string"); + } + + { + uint8_t num[] = { 0x00 }; + uint8_t exp[] = { 0x00 }; + test_write(num, exp, "zero"); + } + + { + uint8_t num[] = { 0x11, 0x22, 0x33 }; + uint8_t exp[] = { 0x00, 0x00, 0x00, 0x11, 0x22, 0x33 }; + test_write(num, exp, "no MSB, right-aligned"); + } + + { + uint8_t num[] = { 0xff, 0xee, 0xdd }; + uint8_t exp[] = { 0x00, 0x00, 0x00, 0xff, 0xee, 0xdd }; + test_write(num, exp, "MSB, right-aligned"); + } + + { + uint8_t num[] = { 0x11, 0x22, 0x33 }; + uint8_t exp[] = { 0x11, 0x22, 0x33 }; + test_write(num, exp, "no MSB, fitting exactly"); + } + + { + uint8_t num[] = { 0xff, 0xee, 0xdd }; + uint8_t exp[] = { 0xff, 0xee, 0xdd }; + test_write(num, exp, "MSB, fitting exactly"); + } + + return 0; +} -- cgit v1.2.3