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test: unit test for crc8

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Add a unit test for the crc8() function.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2023-02-22 02:10:20 +01:00
parent 6c1cdf158c
commit 3080ddf970
2 changed files with 30 additions and 0 deletions
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1
test/lib/Makefile
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@ -20,6 +20,7 @@ obj-$(CONFIG_UT_LIB_ASN1) += asn1.o
obj-$(CONFIG_UT_LIB_RSA) += rsa.o
obj-$(CONFIG_AES) += test_aes.o
obj-$(CONFIG_GETOPT) += getopt.o
obj-$(CONFIG_CRC8) += test_crc8.o
obj-$(CONFIG_UT_LIB_CRYPT) += test_crypt.o
else
obj-$(CONFIG_SANDBOX) += kconfig_spl.o

29
test/lib/test_crc8.c Normal file
View file

@ -0,0 +1,29 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2023, Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
*
* Unit test for crc8
*/
#include <test/lib.h>
#include <test/ut.h>
#include <u-boot/crc.h>
static int lib_crc8(struct unit_test_state *uts) {
const char str[] = {0x20, 0xf4, 0xd8, 0x24, 0x6f, 0x41, 0x91, 0xae,
0x46, 0x61, 0xf6, 0x55, 0xeb, 0x38, 0x47, 0x0f,
0xec, 0xd8};
int actual1, actual2, actual3;
int expected1 = 0x47, expected2 = 0xea, expected3 = expected1;
actual1 = crc8(0, str, sizeof(str));
ut_asserteq(expected1, actual1);
actual2 = crc8(0, str, 7);
ut_asserteq(expected2, actual2);
actual3 = crc8(actual2, str + 7, sizeof(str) - 7);
ut_asserteq(expected3, actual3);
return 0;
}
LIB_TEST(lib_crc8, 0);