90 lines
1.8 KiB
C
90 lines
1.8 KiB
C
/* Copyright 2016 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Tests crc32 sw implementation.
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*/
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#include "common.h"
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#include "console.h"
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#include "crc.h"
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#include "crc8.h"
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#include "test_util.h"
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#include "util.h"
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// test that static version matches context version
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static int test_static_version(void)
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{
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uint32_t crc;
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const uint32_t input = 0xdeadbeef;
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crc32_init();
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crc32_hash32(input);
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crc32_ctx_init(&crc);
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crc32_ctx_hash32(&crc, input);
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TEST_ASSERT(crc32_result() == crc32_ctx_result(&crc));
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return EC_SUCCESS;
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}
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// test that context bytes at a time matches static word at time
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static int test_8(void)
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{
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uint32_t crc;
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const uint32_t input = 0xdeadbeef;
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const uint8_t *p = (const uint8_t *) &input;
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int i;
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crc32_init();
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crc32_hash32(input);
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crc32_ctx_init(&crc);
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for (i = 0; i < sizeof(input); ++i)
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crc32_ctx_hash8(&crc, p[i]);
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TEST_ASSERT(crc32_result() == crc32_ctx_result(&crc));
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return EC_SUCCESS;
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}
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// http://www.febooti.com/products/filetweak/members/hash-and-crc/test-vectors/
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static int test_kat0(void)
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{
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uint32_t crc;
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int i;
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const char input[] = "The quick brown fox jumps over the lazy dog";
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crc32_ctx_init(&crc);
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for (i = 0; i < strlen(input); ++i)
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crc32_ctx_hash8(&crc, input[i]);
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TEST_ASSERT(crc32_ctx_result(&crc) == 0x414fa339);
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return EC_SUCCESS;
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}
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static int test_cros_crc8(void)
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{
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uint8_t buffer[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 8 };
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int crc = cros_crc8(buffer, 10);
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/* Verifies polynomial values of 0x07 representing x^8 + x^2 + x + 1 */
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TEST_EQ(crc, 170, "%d");
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return EC_SUCCESS;
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}
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void run_test(int argc, char **argv)
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{
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test_reset();
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RUN_TEST(test_static_version);
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RUN_TEST(test_8);
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RUN_TEST(test_kat0);
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RUN_TEST(test_cros_crc8);
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test_print_result();
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}
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