121 lines
3.0 KiB
C
121 lines
3.0 KiB
C
/*
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* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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/** @file
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*
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* CRC32 tests
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*
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*
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* Test vectors generated using Perl's Digest::CRC:
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*
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* use Digest::CRC qw ( crc );
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*
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* printf "%#08x", crc ( $data, 32, $seed, 0, 1, 0x04c11db7, 1 );
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*
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*/
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/* Forcibly enable assertions */
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#undef NDEBUG
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#include <stdint.h>
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#include <ipxe/crc32.h>
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#include <ipxe/test.h>
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/** Define inline data */
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#define DATA(...) { __VA_ARGS__ }
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/** A CRC32 test */
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struct crc32_test {
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/** Test data */
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const void *data;
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/** Length of test data */
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size_t len;
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/** Seed */
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uint32_t seed;
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/** Expected CRC32 */
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uint32_t crc32;
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};
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/**
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* Define a CRC32 test
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*
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* @v name Test name
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* @v DATA Test data
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* @v SEED Seed
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* @v CRC32 Expected CRC32
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* @ret test CRC32 test
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*/
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#define CRC32_TEST( name, DATA, SEED, CRC32 ) \
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static const uint8_t name ## _data[] = DATA; \
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static struct crc32_test name = { \
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.data = name ## _data, \
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.len = sizeof ( name ## _data ), \
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.seed = SEED, \
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.crc32 = CRC32, \
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};
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/**
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* Report a CRC32 test result
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*
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* @v test CRC32 test
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*/
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#define crc32_ok( test ) do { \
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uint32_t crc32; \
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crc32 = crc32_le ( (test)->seed, (test)->data, (test)->len ); \
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ok ( crc32 == (test)->crc32 ); \
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} while ( 0 )
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/* CRC32 tests */
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CRC32_TEST ( empty_test,
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DATA ( ),
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0x12345678UL, 0x12345678UL );
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CRC32_TEST ( hw_test,
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DATA ( 'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd' ),
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0xffffffffUL, 0xf2b5ee7aUL );
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CRC32_TEST ( hw_split_part1_test,
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DATA ( 'h', 'e', 'l', 'l', 'o' ),
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0xffffffffUL, 0xc9ef5979UL );
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CRC32_TEST ( hw_split_part2_test,
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DATA ( ' ', 'w', 'o', 'r', 'l', 'd' ),
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0xc9ef5979UL, 0xf2b5ee7aUL );
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/**
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* Perform CRC32 self-tests
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*
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*/
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static void crc32_test_exec ( void ) {
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crc32_ok ( &empty_test );
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crc32_ok ( &hw_test );
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crc32_ok ( &hw_split_part1_test );
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crc32_ok ( &hw_split_part2_test );
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}
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/** CRC32 self-test */
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struct self_test crc32_test __self_test = {
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.name = "crc32",
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.exec = crc32_test_exec,
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};
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