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author | Michael Brown | 2012-03-04 16:12:38 +0100 |
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committer | Michael Brown | 2012-03-04 16:29:24 +0100 |
commit | c94a4a8d126d6d876ed3106ccff8b929346284c6 (patch) | |
tree | 9d16b4050d8c43000583e3a4da6cd32449d4d052 /src/tests/byteswap_test.c | |
parent | [x86_64] Provide __bswap_{16,32,64}s() (diff) | |
download | ipxe-c94a4a8d126d6d876ed3106ccff8b929346284c6.tar.gz ipxe-c94a4a8d126d6d876ed3106ccff8b929346284c6.tar.xz ipxe-c94a4a8d126d6d876ed3106ccff8b929346284c6.zip |
[test] Add self-tests for byte-order swapping functions
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/tests/byteswap_test.c')
-rw-r--r-- | src/tests/byteswap_test.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/tests/byteswap_test.c b/src/tests/byteswap_test.c new file mode 100644 index 00000000..9bfe2659 --- /dev/null +++ b/src/tests/byteswap_test.c @@ -0,0 +1,91 @@ +/* + * 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 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +/** @file + * + * Byte-order swapping test functions + * + */ + +/* Forcibly enable assertions */ +#undef NDEBUG + +#include <stdint.h> +#include <assert.h> +#include <byteswap.h> +#include <ipxe/test.h> + +/* Provide global functions to allow inspection of generated assembly code */ + +uint16_t test_bswap16 ( uint16_t x ) { + return __bswap_16 ( x ); +} + +uint32_t test_bswap32 ( uint32_t x ) { + return __bswap_32 ( x ); +} + +uint64_t test_bswap64 ( uint64_t x ) { + return __bswap_64 ( x ); +} + +void test_bswap16s ( uint16_t *x ) { + __bswap_16s ( x ); +} + +void test_bswap32s ( uint32_t *x ) { + __bswap_32s ( x ); +} + +void test_bswap64s ( uint64_t *x ) { + __bswap_64s ( x ); +} + +/** + * Perform byte-order swapping + * + */ +static void byteswap_test_exec ( void ) { + uint16_t test16; + uint32_t test32; + uint64_t test64; + + ok ( test_bswap16 ( 0x1234 ) == 0x3412 ); + ok ( test_bswap32 ( 0x12345678UL ) == 0x78563412UL ); + ok ( test_bswap64 ( 0x123456789abcdef0ULL ) == 0xf0debc9a78563412ULL ); + + test16 = 0xabcd; + test_bswap16s ( &test16 ); + ok ( test16 == 0xcdab ); + + test32 = 0xabcdef01UL; + test_bswap32s ( &test32 ); + ok ( test32 == 0x01efcdabUL ); + + test64 = 0xabcdef0123456789ULL; + test_bswap64s ( &test64 ); + ok ( test64 == 0x8967452301efcdabULL ); +} + +/** Byte-order swapping self-test */ +struct self_test byteswap_test __self_test = { + .name = "byteswap", + .exec = byteswap_test_exec, +}; |