| 1 | /*
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| 2 | * Copyright (c) 2019 Matthieu Riolo
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | #include <pcut/pcut.h>
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| 30 | #include <imath.h>
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| 31 |
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| 32 | static uint64_t MAX_NUM = 10000000000000000000U;
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| 33 | static unsigned MAX_EXP = 19;
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| 34 |
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| 35 | PCUT_INIT;
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| 36 |
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| 37 | PCUT_TEST_SUITE(imath);
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| 38 |
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| 39 | PCUT_TEST(ipow10_u64_zero)
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| 40 | {
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| 41 | errno_t ret;
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| 42 | uint64_t result;
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| 43 | ret = ipow10_u64(0, &result);
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| 44 |
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| 45 | PCUT_ASSERT_ERRNO_VAL(EOK, ret);
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| 46 | PCUT_ASSERT_INT_EQUALS(1, result);
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| 47 | }
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| 48 |
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| 49 | PCUT_TEST(ipow10_u64_one)
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| 50 | {
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| 51 | errno_t ret;
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| 52 | uint64_t result;
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| 53 | ret = ipow10_u64(1, &result);
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| 54 |
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| 55 | PCUT_ASSERT_ERRNO_VAL(EOK, ret);
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| 56 | PCUT_ASSERT_INT_EQUALS(10, result);
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| 57 | }
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| 58 |
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| 59 | PCUT_TEST(ipow10_u64_max)
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| 60 | {
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| 61 | errno_t ret;
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| 62 | uint64_t result;
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| 63 | ret = ipow10_u64(MAX_EXP, &result);
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| 64 |
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| 65 | PCUT_ASSERT_ERRNO_VAL(EOK, ret);
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| 66 | PCUT_ASSERT_INT_EQUALS(MAX_NUM, result);
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| 67 | }
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| 68 |
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| 69 | PCUT_TEST(ipow10_u64_too_large)
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| 70 | {
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| 71 | errno_t ret;
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| 72 | uint64_t result;
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| 73 | ret = ipow10_u64(MAX_EXP + 1, &result);
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| 74 |
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| 75 | PCUT_ASSERT_ERRNO_VAL(ERANGE, ret);
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| 76 | }
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| 77 |
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| 78 | PCUT_TEST(ilog10_u64_zero)
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| 79 | {
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| 80 | unsigned res;
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| 81 | errno_t ret = ilog10_u64(0, &res);
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| 82 | PCUT_ASSERT_ERRNO_VAL(ERANGE, ret);
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| 83 | }
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| 84 |
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| 85 | PCUT_TEST(ilog10_u64_one)
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| 86 | {
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| 87 | unsigned res;
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| 88 | errno_t ret = ilog10_u64(1, &res);
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| 89 | PCUT_ASSERT_ERRNO_VAL(EOK, ret);
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| 90 | PCUT_ASSERT_INT_EQUALS(0, res);
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| 91 | }
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| 92 |
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| 93 | PCUT_TEST(ilog10_u64_max)
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| 94 | {
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| 95 | unsigned res;
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| 96 | errno_t ret = ilog10_u64(MAX_NUM, &res);
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| 97 | PCUT_ASSERT_ERRNO_VAL(EOK, ret);
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| 98 | PCUT_ASSERT_INT_EQUALS(MAX_EXP, res);
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| 99 | }
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| 100 |
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| 101 | PCUT_EXPORT(imath);
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