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[test] Add self-tests for crc32_le()
Add self-tests for crc32_le() using test vectors generated with Perl's Digest::CRC. Signed-off-by: Michael Brown <mcb30@ipxe.org>
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/* | ||
* Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>. | ||
* | ||
* 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 2 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, write to the Free Software | ||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | ||
* 02110-1301, USA. | ||
*/ | ||
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FILE_LICENCE ( GPL2_OR_LATER ); | ||
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/** @file | ||
* | ||
* CRC32 tests | ||
* | ||
* | ||
* Test vectors generated using Perl's Digest::CRC: | ||
* | ||
* use Digest::CRC qw ( crc ); | ||
* | ||
* printf "%#08x", crc ( $data, 32, $seed, 0, 1, 0x04c11db7, 1 ); | ||
* | ||
*/ | ||
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/* Forcibly enable assertions */ | ||
#undef NDEBUG | ||
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#include <stdint.h> | ||
#include <ipxe/crc32.h> | ||
#include <ipxe/test.h> | ||
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/** Define inline data */ | ||
#define DATA(...) { __VA_ARGS__ } | ||
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/** A CRC32 test */ | ||
struct crc32_test { | ||
/** Test data */ | ||
const void *data; | ||
/** Length of test data */ | ||
size_t len; | ||
/** Seed */ | ||
uint32_t seed; | ||
/** Expected CRC32 */ | ||
uint32_t crc32; | ||
}; | ||
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/** | ||
* Define a CRC32 test | ||
* | ||
* @v name Test name | ||
* @v DATA Test data | ||
* @v SEED Seed | ||
* @v CRC32 Expected CRC32 | ||
* @ret test CRC32 test | ||
*/ | ||
#define CRC32_TEST( name, DATA, SEED, CRC32 ) \ | ||
static const uint8_t name ## _data[] = DATA; \ | ||
static struct crc32_test name = { \ | ||
.data = name ## _data, \ | ||
.len = sizeof ( name ## _data ), \ | ||
.seed = SEED, \ | ||
.crc32 = CRC32, \ | ||
}; | ||
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/** | ||
* Report a CRC32 test result | ||
* | ||
* @v test CRC32 test | ||
*/ | ||
#define crc32_ok( test ) do { \ | ||
uint32_t crc32; \ | ||
crc32 = crc32_le ( (test)->seed, (test)->data, (test)->len ); \ | ||
ok ( crc32 == (test)->crc32 ); \ | ||
} while ( 0 ) | ||
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/* CRC32 tests */ | ||
CRC32_TEST ( empty_test, | ||
DATA ( ), | ||
0x12345678UL, 0x12345678UL ); | ||
CRC32_TEST ( hw_test, | ||
DATA ( 'h', 'e', 'l', 'l', 'o', ' ', 'w', 'o', 'r', 'l', 'd' ), | ||
0xffffffffUL, 0xf2b5ee7aUL ); | ||
CRC32_TEST ( hw_split_part1_test, | ||
DATA ( 'h', 'e', 'l', 'l', 'o' ), | ||
0xffffffffUL, 0xc9ef5979UL ); | ||
CRC32_TEST ( hw_split_part2_test, | ||
DATA ( ' ', 'w', 'o', 'r', 'l', 'd' ), | ||
0xc9ef5979UL, 0xf2b5ee7aUL ); | ||
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/** | ||
* Perform CRC32 self-tests | ||
* | ||
*/ | ||
static void crc32_test_exec ( void ) { | ||
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crc32_ok ( &empty_test ); | ||
crc32_ok ( &hw_test ); | ||
crc32_ok ( &hw_split_part1_test ); | ||
crc32_ok ( &hw_split_part2_test ); | ||
} | ||
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/** CRC32 self-test */ | ||
struct self_test crc32_test __self_test = { | ||
.name = "crc32", | ||
.exec = crc32_test_exec, | ||
}; |
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