testsuites/unit/tc-crc.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup TestsuitesUnitNoClock0
0007  */
0008
0009 /*
0010  * Copyright (C) 2023 embedded brains GmbH & Co. KG
0011  *
0012  * Redistribution and use in source and binary forms, with or without
0013  * modification, are permitted provided that the following conditions
0014  * are met:
0015  * 1. Redistributions of source code must retain the above copyright
0016  *    notice, this list of conditions and the following disclaimer.
0017  * 2. Redistributions in binary form must reproduce the above copyright
0018  *    notice, this list of conditions and the following disclaimer in the
0019  *    documentation and/or other materials provided with the distribution.
0020  *
0021  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0022  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0023  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0024  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0025  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0026  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0027  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0028  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0029  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0030  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0031  * POSSIBILITY OF SUCH DAMAGE.
0032  */
0033
0034 #include <rtems/crc.h>
0035
0036 #include <rtems/test.h>
0037
0038 T_TEST_CASE(CRC24Q) {
0039   uint32_t state = _CRC24Q_Update(CRC24Q_SEED, 0);
0040   T_eq_u32(state, 0);
0041   state = _CRC24Q_Update(CRC24Q_SEED, '1');
0042   state = _CRC24Q_Update(state, '2');
0043   state = _CRC24Q_Update(state, '3');
0044   T_eq_u32(state & CRC24Q_MASK, 0x2c3045);
0045   uint8_t bytes[] = {'1', '2', '3'};
0046   state = _CRC24Q_Sequence_update(CRC24Q_SEED, &bytes[0], sizeof(bytes));
0047   T_eq_u32(state & CRC24Q_MASK, 0x2c3045);
0048 }