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Diffstat (limited to 'test/base32.c')
| -rw-r--r-- | test/base32.c | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/test/base32.c b/test/base32.c deleted file mode 100644 index faaefc266f..0000000000 --- a/test/base32.c +++ /dev/null @@ -1,209 +0,0 @@ -/* Copyright 2017 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. - * - * Test Base-32 encoding/decoding - */ - -#include <stdio.h> -#include "common.h" -#include "base32.h" -#include "test_util.h" -#include "util.h" - -DECLARE_EC_TEST(test_crc5) -{ - uint32_t seen; - int i, j, c; - int errors = 0; - - /* - * For every current CRC value and symbol, new CRC value is unique. - * This guarantees a single-character typo will be detected. - */ - for (i = 0; i < 32; i++) { - seen = 0; - for (j = 0; j < 32; j++) - seen |= 1 << crc5_sym(j, i); - zassert_equal(seen, 0xffffffff, NULL); - } - - /* - * Do the same in the opposite order, to make sure a subsequent - * character doesn't obscure a previous typo. - */ - for (i = 0; i < 32; i++) { - seen = 0; - for (j = 0; j < 32; j++) - seen |= 1 << crc5_sym(i, j); - zassert_equal(seen, 0xffffffff, NULL); - } - - /* Transposing different symbols generates distinct CRCs */ - for (c = 0; c < 32; c++) { - for (i = 0; i < 32; i++) { - for (j = i + 1; j < 32; j++) { - if (crc5_sym(j, crc5_sym(i, c)) == - crc5_sym(i, crc5_sym(j, c))) - errors++; - } - } - } - zassert_equal(errors, 0, NULL); - - return EC_SUCCESS; -} - -static int enctest(const void *src, int srcbits, int crc_every, - const char *enc) -{ - char dest[32]; - - if (base32_encode(dest, sizeof(dest), src, srcbits, crc_every)) - return -1; - if (strlen(dest) != strlen(enc) || strncmp(dest, enc, strlen(dest))) { - fprintf(stderr, "expected encode: \"%s\"\n", enc); - fprintf(stderr, "got encode: \"%s\"\n", dest); - return -2; - } - return 0; -} - -#define ENCTEST(a, b, c, d) zassert_equal(enctest(a, b, c, d), 0, NULL) - -DECLARE_EC_TEST(test_encode) -{ - const uint8_t src1[5] = {0xff, 0x00, 0xff, 0x00, 0xff}; - char enc[32]; - - /* Test for enough space; error produces null string */ - *enc = 1; - zassert_equal(base32_encode(enc, 3, src1, 15, 0), EC_ERROR_INVAL, NULL); - zassert_equal(*enc, 0, NULL); - - /* Empty source */ - ENCTEST("\x00", 0, 0, ""); - - /* Single symbol uses top 5 bits */ - ENCTEST("\x07", 5, 0, "A"); - ENCTEST("\xb8", 5, 0, "Z"); - ENCTEST("\xc0", 5, 0, "2"); - ENCTEST("\xf8", 5, 0, "9"); - - /* Multiples of 5 bits use top bits */ - ENCTEST("\x08\x86", 10, 0, "BC"); - ENCTEST("\x08\x86", 15, 0, "BCD"); - - /* Multiples of 8 bits pad with 0 bits */ - ENCTEST("\xff", 8, 0, "96"); - ENCTEST("\x08\x87", 16, 0, "BCDS"); - - /* Multiples of 40 bits use all the bits */ - ENCTEST("\xff\x00\xff\x00\xff", 40, 0, "96AR8AH9"); - - /* CRC requires exact multiple of symbol count */ - ENCTEST("\xff\x00\xff\x00\xff", 40, 4, "96ARU8AH9D"); - ENCTEST("\xff\x00\xff\x00\xff", 40, 8, "96AR8AH9L"); - zassert_equal( - base32_encode(enc, 16, (uint8_t *)"\xff\x00\xff\x00\xff", - 40, 6), - EC_ERROR_INVAL, NULL); - /* But what matters is symbol count, not bit count */ - ENCTEST("\xff\x00\xff\x00\xfe", 39, 4, "96ARU8AH8P"); - - return EC_SUCCESS; -} - -static int cmpbytes(const uint8_t *expect, const uint8_t *got, int len, - const char *desc) -{ - int i; - - if (!memcmp(expect, got, len)) - return 0; - - fprintf(stderr, "expected %s:", desc); - for (i = 0; i < len; i++) - fprintf(stderr, " %02x", expect[i]); - fprintf(stderr, "\ngot %s: ", desc); - for (i = 0; i < len; i++) - fprintf(stderr, " %02x", got[i]); - fprintf(stderr, "\n"); - - return -2; -} - -static int dectest(const void *dec, int decbits, int crc_every, const char *enc) -{ - uint8_t dest[32]; - int destbits = decbits > 0 ? decbits : sizeof(dest) * 8; - int wantbits = decbits > 0 ? decbits : 5 * strlen(enc); - int gotbits = base32_decode(dest, destbits, enc, crc_every); - - zassert_equal(gotbits, wantbits, NULL); - if (gotbits != wantbits) - return -1; - return cmpbytes(dec, dest, (decbits + 7) / 8, "decode"); -} - -#define DECTEST(a, b, c, d) zassert_equal(dectest(a, b, c, d), 0, NULL) - -DECLARE_EC_TEST(test_decode) -{ - uint8_t dec[32]; - - /* Decode tests, dest-limited */ - DECTEST("\xf8", 5, 0, "97"); - DECTEST("\x08", 5, 0, "BCDS"); - DECTEST("\x08\x80", 10, 0, "BCDS"); - DECTEST("\x08\x86", 15, 0, "BCDS"); - DECTEST("\xff", 8, 0, "96"); - DECTEST("\x08\x87", 16, 0, "BCDS"); - DECTEST("\xff\x00\xff\x00\xff", 40, 0, "96AR8AH9"); - DECTEST("\xff\x00\xff\x00\xfe", 39, 4, "96ARU8AH8P"); - - /* Decode ignores whitespace and dashes */ - DECTEST("\xff\x00\xff\x00\xff", 40, 0, " 96\tA-R\r8A H9\n"); - - /* Invalid symbol fails */ - zassert_equal(base32_decode(dec, 16, "AI", 0), -1, NULL); - - /* If dest buffer is big, use all the source bits */ - DECTEST("", 0, 0, ""); - DECTEST("\xf8", 0, 0, "9"); - DECTEST("\x07\xc0", 0, 0, "A9"); - DECTEST("\x00\x3e", 0, 0, "AA9"); - DECTEST("\x00\x01\xf0", 0, 0, "AAA9"); - DECTEST("\xff\x00\xff\x00\xff", 0, 0, "96AR8AH9"); - - /* Decode always overwrites destination */ - memset(dec, 0xff, sizeof(dec)); - DECTEST("\x00\x00\x00\x00\x00", 0, 0, "AAAAAAAA"); - memset(dec, 0x00, sizeof(dec)); - DECTEST("\xff\xff\xff\xff\xff", 0, 0, "99999999"); - - /* Good CRCs */ - DECTEST("\xff\x00\xff\x00\xff", 40, 4, "96ARU8AH9D"); - DECTEST("\xff\x00\xff\x00\xff", 40, 8, "96AR8AH9L"); - - /* CRC requires exact multiple of symbol count */ - zassert_equal(base32_decode(dec, 40, "96ARL8AH9", 4), -1, NULL); - /* But what matters is symbol count, not bit count */ - DECTEST("\xff\x00\xff\x00\xfe", 39, 4, "96ARU8AH8P"); - - /* Detect errors in data, CRC, and transposition */ - zassert_equal(base32_decode(dec, 40, "96AQL", 4), -1, NULL); - zassert_equal(base32_decode(dec, 40, "96ARM", 4), -1, NULL); - zassert_equal(base32_decode(dec, 40, "96RAL", 4), -1, NULL); - - return EC_SUCCESS; -} - -TEST_MAIN() -{ - ztest_test_suite(test_base32_lib, - ztest_unit_test(test_crc5), - ztest_unit_test(test_encode), - ztest_unit_test(test_decode)); - ztest_run_test_suite(test_base32_lib); -} |