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RIOT/tests/unittests/tests-checksum/tests-checksum-crc32.c
2022-10-04 15:40:53 +02:00

73 lines
2.2 KiB
C

/*
* Copyright 2022 Benjamin Valentin <benpicco@googlemail.com>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
#include "checksum/crc32.h"
#include "tests-checksum.h"
static void test_checksum_crc32_sequence_empty(void)
{
unsigned char buf[] = "";
uint32_t expect = 0x0;
TEST_ASSERT_EQUAL_INT(expect, crc32(buf, sizeof(buf) - 1));
}
static void test_checksum_crc32_sequence_1a(void)
{
unsigned char buf[] = "A";
uint32_t expect = 0xd3d99e8b;
TEST_ASSERT_EQUAL_INT(expect, crc32(buf, sizeof(buf) - 1));
}
static void test_checksum_crc32_sequence_256a(void)
{
unsigned char buf[] = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
"AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
uint32_t expect = 0x49975b13;
TEST_ASSERT_EQUAL_INT(expect, crc32(buf, sizeof(buf) - 1));
}
static void test_checksum_crc32_sequence_1to9(void)
{
unsigned char buf[] = "123456789";
uint32_t expect = 0xcbf43926;
TEST_ASSERT_EQUAL_INT(expect, crc32(buf, sizeof(buf) - 1));
}
static void test_checksum_crc32_sequence_4bytes(void)
{
unsigned char buf[] = { 0x12, 0x34, 0x56, 0x78 };
uint32_t expect = 0x4a090e98;
TEST_ASSERT_EQUAL_INT(expect, crc32(buf, sizeof(buf)));
}
Test *tests_checksum_crc32_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
new_TestFixture(test_checksum_crc32_sequence_empty),
new_TestFixture(test_checksum_crc32_sequence_1a),
new_TestFixture(test_checksum_crc32_sequence_256a),
new_TestFixture(test_checksum_crc32_sequence_1to9),
new_TestFixture(test_checksum_crc32_sequence_4bytes),
};
EMB_UNIT_TESTCALLER(checksum_crc32_tests, NULL, NULL, fixtures);
return (Test *)&checksum_crc32_tests;
}