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Diffstat (limited to 'test/crc.c')
-rw-r--r-- | test/crc.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/test/crc.c b/test/crc.c new file mode 100644 index 0000000000..3521bce4a9 --- /dev/null +++ b/test/crc.c @@ -0,0 +1,75 @@ +/* Copyright 2016 The Chromium OS Authors. All rights reserved. + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + * + * Tests crc32 sw implementation. + */ + +#include "common.h" +#include "console.h" +#include "crc.h" +#include "test_util.h" +#include "util.h" + +// test that static version matches context version +static int test_static_version(void) +{ + uint32_t crc; + const uint32_t input = 0xdeadbeef; + + crc32_init(); + crc32_hash32(input); + + crc32_ctx_init(&crc); + crc32_ctx_hash32(&crc, input); + + TEST_ASSERT(crc32_result() == crc32_ctx_result(&crc)); + + return EC_SUCCESS; +} + +// test that context bytes at a time matches static word at time +static int test_8(void) +{ + uint32_t crc; + const uint32_t input = 0xdeadbeef; + const uint8_t *p = (const uint8_t *) &input; + int i; + + crc32_init(); + crc32_hash32(input); + + crc32_ctx_init(&crc); + for (i = 0; i < sizeof(input); ++i) + crc32_ctx_hash8(&crc, p[i]); + + TEST_ASSERT(crc32_result() == crc32_ctx_result(&crc)); + + return EC_SUCCESS; +} + +// http://www.febooti.com/products/filetweak/members/hash-and-crc/test-vectors/ +static int test_kat0(void) +{ + uint32_t crc; + int i; + const char input[] = "The quick brown fox jumps over the lazy dog"; + + crc32_ctx_init(&crc); + for (i = 0; i < strlen(input); ++i) + crc32_ctx_hash8(&crc, input[i]); + TEST_ASSERT(crc32_ctx_result(&crc) == 0x414fa339); + + return EC_SUCCESS; +} + +void run_test(int argc, char **argv) +{ + test_reset(); + + RUN_TEST(test_static_version); + RUN_TEST(test_8); + RUN_TEST(test_kat0); + + test_print_result(); +} |