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reseau statique a...
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/*
* Copyright (C) 2014 Martine Lenders <mlenders@inf.fu-berlin.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
#include <limits.h>
#include <stdint.h>
#include "embUnit.h"
#include "bitarithm.h"
#include "tests-core.h"
static void test_SETBIT_null_null(void)
{
int res = 0x00;
SETBIT(res, 0x00);
TEST_ASSERT_EQUAL_INT(0x00, res);
}
static void test_SETBIT_null_limit(void)
{
unsigned int res = 0x00;
SETBIT(res, UINT_MAX);
TEST_ASSERT_EQUAL_INT(UINT_MAX, res);
}
static void test_SETBIT_limit_null(void)
{
unsigned int res = UINT_MAX;
SETBIT(res, 0x00);
TEST_ASSERT_EQUAL_INT(UINT_MAX, res);
}
static void test_SETBIT_limit_limit(void)
{
unsigned int res = UINT_MAX;
SETBIT(res, UINT_MAX);
TEST_ASSERT_EQUAL_INT(UINT_MAX, res);
}
static void test_SETBIT_null_one(void)
{
unsigned int res = 0x00;
SETBIT(res, 0x01);
TEST_ASSERT_EQUAL_INT(0x01, res);
}
static void test_SETBIT_one_null(void)
{
unsigned int res = 0x01;
SETBIT(res, 0x00);
TEST_ASSERT_EQUAL_INT(0x01, res);
}
static void test_SETBIT_one_random(void)
{
unsigned int res = 0x01;
SETBIT(res, 0x06); /* randomized by fair dice roll ;-) */
TEST_ASSERT_EQUAL_INT(0x07, res);
}
static void test_CLRBIT_null_null(void)
{
int res = 0x00;
CLRBIT(res, 0x00);
TEST_ASSERT_EQUAL_INT(0x00, res);
}
static void test_CLRBIT_null_limit(void)
{
unsigned int res = 0x00;
CLRBIT(res, UINT_MAX);
TEST_ASSERT_EQUAL_INT(0x00, res);
}
static void test_CLRBIT_limit_null(void)
{
unsigned int res = UINT_MAX;
CLRBIT(res, 0x00);
TEST_ASSERT_EQUAL_INT(UINT_MAX, res);
}
static void test_CLRBIT_limit_limit(void)
{
unsigned int res = UINT_MAX;
CLRBIT(res, UINT_MAX);
TEST_ASSERT_EQUAL_INT(0x00, res);
}
static void test_CLRBIT_null_one(void)
{
unsigned int res = 0x00;
CLRBIT(res, 0x01);
TEST_ASSERT_EQUAL_INT(0x00, res);
}
static void test_CLRBIT_one_null(void)
{
unsigned int res = 0x01;
CLRBIT(res, 0x00);
TEST_ASSERT_EQUAL_INT(0x01, res);
}
static void test_CLRBIT_one_random(void)
{
unsigned int res = 0x01;
CLRBIT(res, 0x05); /* randomized by fair dice roll ;-) */
TEST_ASSERT_EQUAL_INT(0x00, res);
}
static void test_bitarithm_msb_one(void)
{
TEST_ASSERT_EQUAL_INT(0, bitarithm_msb(1));
}
static void test_bitarithm_msb_limit(void)
{
TEST_ASSERT_EQUAL_INT(sizeof(unsigned) * 8 - 1,
bitarithm_msb(UINT_MAX));
}
static void test_bitarithm_msb_random(void)
{
TEST_ASSERT_EQUAL_INT(4, bitarithm_msb(19)); /* randomized by fair
dice roll ;-) */
}
static void test_bitarithm_msb_16bit(void)
{
for (unsigned i = 1; i < UINT16_MAX; i++) {
TEST_ASSERT_EQUAL_INT(((sizeof(unsigned) * 8) - __builtin_clz(i) - 1), bitarithm_msb(i));
}
}
static void test_bitarithm_lsb_one(void)
{
TEST_ASSERT_EQUAL_INT(0, bitarithm_lsb(1));
}
static void test_bitarithm_lsb_limit(void)
{
unsigned shift = sizeof(unsigned) * 8 - 1;
TEST_ASSERT_EQUAL_INT(shift, bitarithm_lsb(1u << shift));
}
static void test_bitarithm_lsb_random(void)
{
TEST_ASSERT_EQUAL_INT(3, bitarithm_lsb(24)); /* randomized by fair
dice roll ;-) */
}
static void test_bitarithm_lsb_all(void)
{
for (unsigned i = 1; i < UINT16_MAX; i++) {
TEST_ASSERT_EQUAL_INT(__builtin_ctz(i), bitarithm_lsb(i));
}
}
static void test_bitarithm_bits_set_null(void)
{
TEST_ASSERT_EQUAL_INT(0, bitarithm_bits_set(0));
}
static void test_bitarithm_bits_set_one(void)
{
TEST_ASSERT_EQUAL_INT(1, bitarithm_bits_set(1));
}
static void test_bitarithm_bits_set_limit(void)
{
TEST_ASSERT_EQUAL_INT(sizeof(unsigned) * 8,
bitarithm_bits_set(UINT_MAX));
}
static void test_bitarithm_bits_set_random(void)
{
TEST_ASSERT_EQUAL_INT(3, bitarithm_bits_set(7)); /* randomized by fair
dice roll ;-) */
}
Test *tests_core_bitarithm_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
new_TestFixture(test_SETBIT_null_null),
new_TestFixture(test_SETBIT_null_limit),
new_TestFixture(test_SETBIT_limit_null),
new_TestFixture(test_SETBIT_limit_limit),
new_TestFixture(test_SETBIT_null_one),
new_TestFixture(test_SETBIT_one_null),
new_TestFixture(test_SETBIT_one_random),
new_TestFixture(test_CLRBIT_null_null),
new_TestFixture(test_CLRBIT_null_limit),
new_TestFixture(test_CLRBIT_limit_null),
new_TestFixture(test_CLRBIT_limit_limit),
new_TestFixture(test_CLRBIT_null_one),
new_TestFixture(test_CLRBIT_one_null),
new_TestFixture(test_CLRBIT_one_random),
new_TestFixture(test_bitarithm_msb_one),
new_TestFixture(test_bitarithm_msb_limit),
new_TestFixture(test_bitarithm_msb_random),
new_TestFixture(test_bitarithm_msb_16bit),
new_TestFixture(test_bitarithm_lsb_one),
new_TestFixture(test_bitarithm_lsb_limit),
new_TestFixture(test_bitarithm_lsb_random),
new_TestFixture(test_bitarithm_lsb_all),
new_TestFixture(test_bitarithm_bits_set_null),
new_TestFixture(test_bitarithm_bits_set_one),
new_TestFixture(test_bitarithm_bits_set_limit),
new_TestFixture(test_bitarithm_bits_set_random),
};
EMB_UNIT_TESTCALLER(core_bitarithm_tests, NULL, NULL, fixtures);
return (Test *)&core_bitarithm_tests;
}
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