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99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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#include <string.h>
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#include "embUnit.h"
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#include "tests-div.h"
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#include "div.h"
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#define ENABLE_DEBUG (0)
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#include "debug.h"
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static uint32_t u32_test_values[] = {
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0,
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1,
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10,
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32,
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15625,
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15625LU*5,
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(15625LU*5)+1,
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0xffff,
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0xffff<<10,
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0xffffffff
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};
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static uint64_t u64_test_values[] = {
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0xffffffffULL+1
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};
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#define N_U32_VALS (sizeof(u32_test_values)/sizeof(uint32_t))
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#define N_U64_VALS (sizeof(u64_test_values)/sizeof(uint64_t))
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static void test_div_u64_by_15625(void)
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{
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for (unsigned i = 0; i < N_U32_VALS; i++) {
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DEBUG("Dividing %"PRIu32" by 15625...\n", u32_test_values[i]);
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TEST_ASSERT_EQUAL_INT(
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div_u64_by_15625(u32_test_values[i]),
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u32_test_values[i]/15625);
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}
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for (unsigned i = 0; i < N_U64_VALS; i++) {
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DEBUG("Dividing %"PRIu64" by 15625...\n", u64_test_values[i]);
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TEST_ASSERT_EQUAL_INT(
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div_u64_by_15625(u64_test_values[i]),
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u64_test_values[i]/15625);
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}
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}
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static void test_div_u32_by_15625div512(void)
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{
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for (unsigned i = 0; i < N_U32_VALS; i++) {
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DEBUG("Dividing %"PRIu32" by (15625/512)...\n", u32_test_values[i]);
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TEST_ASSERT_EQUAL_INT(
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div_u32_by_15625div512(u32_test_values[i]),
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(uint64_t)u32_test_values[i]*512LU/15625);
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}
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}
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static void test_div_u64_by_1000000(void)
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{
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for (unsigned i = 0; i < N_U32_VALS; i++) {
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DEBUG("Dividing %"PRIu32" by 1000000...\n", u32_test_values[i]);
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TEST_ASSERT_EQUAL_INT(
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div_u64_by_1000000(u32_test_values[i]),
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u32_test_values[i]/1000000);
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}
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for (unsigned i = 0; i < N_U64_VALS; i++) {
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DEBUG("Dividing %"PRIu64" by 1000000...\n", u64_test_values[i]);
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TEST_ASSERT_EQUAL_INT(
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div_u64_by_1000000(u64_test_values[i]),
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u64_test_values[i]/1000000U);
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}
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}
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Test *tests_div_tests(void)
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{
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EMB_UNIT_TESTFIXTURES(fixtures) {
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new_TestFixture(test_div_u64_by_15625),
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new_TestFixture(test_div_u32_by_15625div512),
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new_TestFixture(test_div_u64_by_1000000),
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};
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EMB_UNIT_TESTCALLER(div_tests, NULL, NULL, fixtures);
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return (Test *)&div_tests;
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}
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void tests_div(void)
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{
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TESTS_RUN(tests_div_tests());
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}
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