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zephyr/tests/unit/util/main.c

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/*
* Copyright (c) 2019 Oticon A/S
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/ztest.h>
#include <zephyr/sys/util.h>
#include <stdio.h>
#include <string.h>
ZTEST(util, test_u8_to_dec) {
char text[4];
uint8_t len;
len = u8_to_dec(text, sizeof(text), 0);
zassert_equal(len, 1, "Length of 0 is not 1");
zassert_str_equal(text, "0", "Value=0 is not converted to \"0\"");
len = u8_to_dec(text, sizeof(text), 1);
zassert_equal(len, 1, "Length of 1 is not 1");
zassert_str_equal(text, "1", "Value=1 is not converted to \"1\"");
len = u8_to_dec(text, sizeof(text), 11);
zassert_equal(len, 2, "Length of 11 is not 2");
zassert_str_equal(text, "11", "Value=10 is not converted to \"11\"");
len = u8_to_dec(text, sizeof(text), 100);
zassert_equal(len, 3, "Length of 100 is not 3");
zassert_str_equal(text, "100",
"Value=100 is not converted to \"100\"");
len = u8_to_dec(text, sizeof(text), 101);
zassert_equal(len, 3, "Length of 101 is not 3");
zassert_str_equal(text, "101",
"Value=101 is not converted to \"101\"");
len = u8_to_dec(text, sizeof(text), 255);
zassert_equal(len, 3, "Length of 255 is not 3");
zassert_str_equal(text, "255",
"Value=255 is not converted to \"255\"");
memset(text, 0, sizeof(text));
len = u8_to_dec(text, 2, 123);
zassert_equal(len, 2,
"Length of converted value using 2 byte buffer isn't 2");
zassert_str_equal(text, "12",
"Value=123 is not converted to \"12\" using 2-byte buffer");
memset(text, 0, sizeof(text));
len = u8_to_dec(text, 1, 123);
zassert_equal(len, 1,
"Length of converted value using 1 byte buffer isn't 1");
zassert_str_equal(text, "1",
"Value=123 is not converted to \"1\" using 1-byte buffer");
memset(text, 0, sizeof(text));
len = u8_to_dec(text, 0, 123);
zassert_equal(len, 0,
"Length of converted value using 0 byte buffer isn't 0");
}
ZTEST(util, test_sign_extend) {
uint8_t u8;
uint16_t u16;
uint32_t u32;
u8 = 0x0f;
zassert_equal(sign_extend(u8, 3), -1);
zassert_equal(sign_extend(u8, 4), 0xf);
u16 = 0xfff;
zassert_equal(sign_extend(u16, 11), -1);
zassert_equal(sign_extend(u16, 12), 0xfff);
u32 = 0xfffffff;
zassert_equal(sign_extend(u32, 27), -1);
zassert_equal(sign_extend(u32, 28), 0xfffffff);
}
ZTEST(util, test_sign_extend_64) {
uint8_t u8;
uint16_t u16;
uint32_t u32;
uint64_t u64;
u8 = 0x0f;
zassert_equal(sign_extend_64(u8, 3), -1);
zassert_equal(sign_extend_64(u8, 4), 0xf);
u16 = 0xfff;
zassert_equal(sign_extend_64(u16, 11), -1);
zassert_equal(sign_extend_64(u16, 12), 0xfff);
u32 = 0xfffffff;
zassert_equal(sign_extend_64(u32, 27), -1);
zassert_equal(sign_extend_64(u32, 28), 0xfffffff);
u64 = 0xfffffffffffffff;
zassert_equal(sign_extend_64(u64, 59), -1);
zassert_equal(sign_extend_64(u64, 60), 0xfffffffffffffff);
}
ZTEST(util, test_COND_CODE_1) {
#define TEST_DEFINE_1 1
#define TEST_DEFINE_0 0
/* Test validates that expected code has been injected. Failure would
* be seen in compilation (lack of variable or unused variable).
*/
COND_CODE_1(1, (uint32_t x0 = 1;), (uint32_t y0;))
zassert_true((x0 == 1));
COND_CODE_1(NOT_EXISTING_DEFINE, (uint32_t x1 = 1;), (uint32_t y1 = 1;))
zassert_true((y1 == 1));
COND_CODE_1(TEST_DEFINE_1, (uint32_t x2 = 1;), (uint32_t y2 = 1;))
zassert_true((x2 == 1));
COND_CODE_1(2, (uint32_t x3 = 1;), (uint32_t y3 = 1;))
zassert_true((y3 == 1));
}
ZTEST(util, test_COND_CODE_0) {
/* Test validates that expected code has been injected. Failure would
* be seen in compilation (lack of variable or unused variable).
*/
COND_CODE_0(0, (uint32_t x0 = 1;), (uint32_t y0;))
zassert_true((x0 == 1));
COND_CODE_0(NOT_EXISTING_DEFINE, (uint32_t x1 = 1;), (uint32_t y1 = 1;))
zassert_true((y1 == 1));
COND_CODE_0(TEST_DEFINE_0, (uint32_t x2 = 1;), (uint32_t y2 = 1;))
zassert_true((x2 == 1));
COND_CODE_0(2, (uint32_t x3 = 1;), (uint32_t y3 = 1;))
zassert_true((y3 == 1));
}
#undef ZERO
#undef SEVEN
#undef A_BUILD_ERROR
#define ZERO 0
#define SEVEN 7
#define A_BUILD_ERROR (this would be a build error if you used || or &&)
ZTEST(util, test_UTIL_OR) {
zassert_equal(UTIL_OR(SEVEN, A_BUILD_ERROR), 7);
zassert_equal(UTIL_OR(7, 0), 7);
zassert_equal(UTIL_OR(SEVEN, ZERO), 7);
zassert_equal(UTIL_OR(0, 7), 7);
zassert_equal(UTIL_OR(ZERO, SEVEN), 7);
zassert_equal(UTIL_OR(0, 0), 0);
zassert_equal(UTIL_OR(ZERO, ZERO), 0);
}
ZTEST(util, test_UTIL_AND) {
zassert_equal(UTIL_AND(ZERO, A_BUILD_ERROR), 0);
zassert_equal(UTIL_AND(7, 0), 0);
zassert_equal(UTIL_AND(SEVEN, ZERO), 0);
zassert_equal(UTIL_AND(0, 7), 0);
zassert_equal(UTIL_AND(ZERO, SEVEN), 0);
zassert_equal(UTIL_AND(0, 0), 0);
zassert_equal(UTIL_AND(ZERO, ZERO), 0);
zassert_equal(UTIL_AND(7, 7), 7);
zassert_equal(UTIL_AND(7, SEVEN), 7);
zassert_equal(UTIL_AND(SEVEN, 7), 7);
zassert_equal(UTIL_AND(SEVEN, SEVEN), 7);
}
ZTEST(util, test_IF_ENABLED) {
#define test_IF_ENABLED_FLAG_A 1
#define test_IF_ENABLED_FLAG_B 0
IF_ENABLED(test_IF_ENABLED_FLAG_A, (goto skipped;))
/* location should be skipped if IF_ENABLED macro is correct. */
zassert_false(true, "location should be skipped");
skipped:
IF_ENABLED(test_IF_ENABLED_FLAG_B, (zassert_false(true, "");))
IF_ENABLED(test_IF_ENABLED_FLAG_C, (zassert_false(true, "");))
zassert_true(true, "");
#undef test_IF_ENABLED_FLAG_A
#undef test_IF_ENABLED_FLAG_B
}
ZTEST(util, test_LISTIFY) {
int ab0 = 1;
int ab1 = 1;
#define A_PTR(x, name0, name1) &UTIL_CAT(UTIL_CAT(name0, name1), x)
int *a[] = { LISTIFY(2, A_PTR, (,), a, b) };
zassert_equal(ARRAY_SIZE(a), 2);
zassert_equal(a[0], &ab0);
zassert_equal(a[1], &ab1);
}
ZTEST(util, test_MACRO_MAP_CAT) {
int item_a_item_b_item_c_ = 1;
#undef FOO
#define FOO(x) item_##x##_
zassert_equal(MACRO_MAP_CAT(FOO, a, b, c), 1, "MACRO_MAP_CAT");
#undef FOO
}
static int inc_func(bool cleanup)
{
static int a;
if (cleanup) {
a = 1;
}
return a++;
}
/* Test checks if @ref Z_MAX, @ref Z_MIN and @ref Z_CLAMP return correct result
* and perform single evaluation of input arguments.
*/
ZTEST(util, test_z_max_z_min_z_clamp) {
zassert_equal(Z_MAX(inc_func(true), 0), 1, "Unexpected macro result");
/* Z_MAX should have call inc_func only once */
zassert_equal(inc_func(false), 2, "Unexpected return value");
zassert_equal(Z_MIN(inc_func(false), 2), 2, "Unexpected macro result");
/* Z_MIN should have call inc_func only once */
zassert_equal(inc_func(false), 4, "Unexpected return value");
zassert_equal(Z_CLAMP(inc_func(false), 1, 3), 3, "Unexpected macro result");
/* Z_CLAMP should have call inc_func only once */
zassert_equal(inc_func(false), 6, "Unexpected return value");
zassert_equal(Z_CLAMP(inc_func(false), 10, 15), 10,
"Unexpected macro result");
/* Z_CLAMP should have call inc_func only once */
zassert_equal(inc_func(false), 8, "Unexpected return value");
}
ZTEST(util, test_CLAMP) {
zassert_equal(CLAMP(5, 3, 7), 5, "Unexpected clamp result");
zassert_equal(CLAMP(3, 3, 7), 3, "Unexpected clamp result");
zassert_equal(CLAMP(7, 3, 7), 7, "Unexpected clamp result");
zassert_equal(CLAMP(1, 3, 7), 3, "Unexpected clamp result");
zassert_equal(CLAMP(8, 3, 7), 7, "Unexpected clamp result");
zassert_equal(CLAMP(-5, -7, -3), -5, "Unexpected clamp result");
zassert_equal(CLAMP(-9, -7, -3), -7, "Unexpected clamp result");
zassert_equal(CLAMP(1, -7, -3), -3, "Unexpected clamp result");
zassert_equal(CLAMP(0xffffffffaULL, 0xffffffff0ULL, 0xfffffffffULL),
0xffffffffaULL, "Unexpected clamp result");
}
ZTEST(util, test_IN_RANGE) {
zassert_true(IN_RANGE(0, 0, 0), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(1, 0, 1), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(1, 0, 2), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(-1, -2, 2), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(-3, -5, -1), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(0, 0, UINT64_MAX), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(UINT64_MAX, 0, UINT64_MAX), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(0, INT64_MIN, INT64_MAX), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(INT64_MIN, INT64_MIN, INT64_MAX), "Unexpected IN_RANGE result");
zassert_true(IN_RANGE(INT64_MAX, INT64_MIN, INT64_MAX), "Unexpected IN_RANGE result");
zassert_false(IN_RANGE(5, 0, 2), "Unexpected IN_RANGE result");
zassert_false(IN_RANGE(5, 10, 0), "Unexpected IN_RANGE result");
zassert_false(IN_RANGE(-1, 0, 1), "Unexpected IN_RANGE result");
}
ZTEST(util, test_FOR_EACH) {
#define FOR_EACH_MACRO_TEST(arg) *buf++ = arg
#define FOR_EACH_MACRO_TEST2(arg) arg
uint8_t array[3] = {0};
uint8_t *buf = array;
FOR_EACH(FOR_EACH_MACRO_TEST, (;), 1, 2, 3);
zassert_equal(array[0], 1, "Unexpected value %d", array[0]);
zassert_equal(array[1], 2, "Unexpected value %d", array[1]);
zassert_equal(array[2], 3, "Unexpected value %d", array[2]);
uint8_t test0[] = { 0, FOR_EACH(FOR_EACH_MACRO_TEST2, (,))};
BUILD_ASSERT(sizeof(test0) == 1, "Unexpected length due to FOR_EACH fail");
uint8_t test1[] = { 0, FOR_EACH(FOR_EACH_MACRO_TEST2, (,), 1)};
BUILD_ASSERT(sizeof(test1) == 2, "Unexpected length due to FOR_EACH fail");
}
ZTEST(util, test_FOR_EACH_NONEMPTY_TERM) {
#define SQUARE(arg) (arg * arg)
#define SWALLOW_VA_ARGS_1(...) EMPTY
#define SWALLOW_VA_ARGS_2(...)
#define REPEAT_VA_ARGS(...) __VA_ARGS__
uint8_t array[] = {
FOR_EACH_NONEMPTY_TERM(SQUARE, (,))
FOR_EACH_NONEMPTY_TERM(SQUARE, (,),)
FOR_EACH_NONEMPTY_TERM(SQUARE, (,), ,)
FOR_EACH_NONEMPTY_TERM(SQUARE, (,), EMPTY, EMPTY)
FOR_EACH_NONEMPTY_TERM(SQUARE, (,), SWALLOW_VA_ARGS_1(a, b))
FOR_EACH_NONEMPTY_TERM(SQUARE, (,), SWALLOW_VA_ARGS_2(c, d))
FOR_EACH_NONEMPTY_TERM(SQUARE, (,), 1)
FOR_EACH_NONEMPTY_TERM(SQUARE, (,), 2, 3)
FOR_EACH_NONEMPTY_TERM(SQUARE, (,), REPEAT_VA_ARGS(4))
FOR_EACH_NONEMPTY_TERM(SQUARE, (,), REPEAT_VA_ARGS(5, 6))
255
};
size_t size = ARRAY_SIZE(array);
zassert_equal(size, 7, "Unexpected size %d", size);
zassert_equal(array[0], 1, "Unexpected value %d", array[0]);
zassert_equal(array[1], 4, "Unexpected value %d", array[1]);
zassert_equal(array[2], 9, "Unexpected value %d", array[2]);
zassert_equal(array[3], 16, "Unexpected value %d", array[3]);
zassert_equal(array[4], 25, "Unexpected value %d", array[4]);
zassert_equal(array[5], 36, "Unexpected value %d", array[5]);
zassert_equal(array[6], 255, "Unexpected value %d", array[6]);
}
static void fsum(uint32_t incr, uint32_t *sum)
{
*sum = *sum + incr;
}
ZTEST(util, test_FOR_EACH_FIXED_ARG) {
uint32_t sum = 0;
FOR_EACH_FIXED_ARG(fsum, (;), &sum, 1, 2, 3);
zassert_equal(sum, 6, "Unexpected value %d", sum);
}
ZTEST(util, test_FOR_EACH_IDX) {
#define FOR_EACH_IDX_MACRO_TEST(n, arg) uint8_t a##n = arg
FOR_EACH_IDX(FOR_EACH_IDX_MACRO_TEST, (;), 1, 2, 3);
zassert_equal(a0, 1, "Unexpected value %d", a0);
zassert_equal(a1, 2, "Unexpected value %d", a1);
zassert_equal(a2, 3, "Unexpected value %d", a2);
#define FOR_EACH_IDX_MACRO_TEST2(n, arg) array[n] = arg
uint8_t array[32] = {0};
FOR_EACH_IDX(FOR_EACH_IDX_MACRO_TEST2, (;), 1, 2, 3, 4, 5, 6, 7, 8,
9, 10, 11, 12, 13, 14, 15);
for (int i = 0; i < 15; i++) {
zassert_equal(array[i], i + 1,
"Unexpected value: %d", array[i]);
}
zassert_equal(array[15], 0, "Unexpected value: %d", array[15]);
#define FOR_EACH_IDX_MACRO_TEST3(n, arg) &a##n
uint8_t *a[] = {
FOR_EACH_IDX(FOR_EACH_IDX_MACRO_TEST3, (,), 1, 2, 3)
};
zassert_equal(ARRAY_SIZE(a), 3, "Unexpected value:%zu", ARRAY_SIZE(a));
}
ZTEST(util, test_FOR_EACH_IDX_FIXED_ARG) {
#undef FOO
#define FOO(n, arg, fixed_arg) \
uint8_t fixed_arg##n = arg
FOR_EACH_IDX_FIXED_ARG(FOO, (;), a, 1, 2, 3);
zassert_equal(a0, 1, "Unexpected value %d", a0);
zassert_equal(a1, 2, "Unexpected value %d", a1);
zassert_equal(a2, 3, "Unexpected value %d", a2);
}
ZTEST(util, test_IS_EMPTY) {
#define test_IS_EMPTY_REAL_EMPTY
#define test_IS_EMPTY_NOT_EMPTY XXX_DO_NOT_REPLACE_XXX
zassert_true(IS_EMPTY(test_IS_EMPTY_REAL_EMPTY),
"Expected to be empty");
zassert_false(IS_EMPTY(test_IS_EMPTY_NOT_EMPTY),
"Expected to be non-empty");
zassert_false(IS_EMPTY("string"),
"Expected to be non-empty");
zassert_false(IS_EMPTY(&test_IS_EMPTY),
"Expected to be non-empty");
}
ZTEST(util, test_IS_EQ) {
zassert_true(IS_EQ(0, 0), "Unexpected IS_EQ result");
zassert_true(IS_EQ(1, 1), "Unexpected IS_EQ result");
zassert_true(IS_EQ(7, 7), "Unexpected IS_EQ result");
zassert_false(IS_EQ(0, 1), "Unexpected IS_EQ result");
zassert_false(IS_EQ(1, 7), "Unexpected IS_EQ result");
zassert_false(IS_EQ(7, 0), "Unexpected IS_EQ result");
}
ZTEST(util, test_LIST_DROP_EMPTY) {
/*
* The real definition should be:
* #define TEST_BROKEN_LIST ,Henry,,Dorsett,Case,
* but checkpatch complains, so below equivalent is defined.
*/
#define TEST_BROKEN_LIST EMPTY, Henry, EMPTY, Dorsett, Case,
#define TEST_FIXED_LIST LIST_DROP_EMPTY(TEST_BROKEN_LIST)
static const char *const arr[] = {
FOR_EACH(STRINGIFY, (,), TEST_FIXED_LIST)
};
zassert_equal(ARRAY_SIZE(arr), 3, "Failed to cleanup list");
zassert_str_equal(arr[0], "Henry", "Failed at 0");
zassert_str_equal(arr[1], "Dorsett", "Failed at 1");
zassert_str_equal(arr[2], "Case", "Failed at 0");
}
ZTEST(util, test_nested_FOR_EACH) {
#define FOO_1(x) a##x = x
#define FOO_2(x) int x
FOR_EACH(FOO_2, (;), FOR_EACH(FOO_1, (,), 0, 1, 2));
zassert_equal(a0, 0);
zassert_equal(a1, 1);
zassert_equal(a2, 2);
}
ZTEST(util, test_GET_ARG_N) {
int a = GET_ARG_N(1, 10, 100, 1000);
int b = GET_ARG_N(2, 10, 100, 1000);
int c = GET_ARG_N(3, 10, 100, 1000);
zassert_equal(a, 10);
zassert_equal(b, 100);
zassert_equal(c, 1000);
}
ZTEST(util, test_GET_ARGS_LESS_N) {
uint8_t a[] = { GET_ARGS_LESS_N(0, 1, 2, 3) };
uint8_t b[] = { GET_ARGS_LESS_N(1, 1, 2, 3) };
uint8_t c[] = { GET_ARGS_LESS_N(2, 1, 2, 3) };
zassert_equal(sizeof(a), 3);
zassert_equal(sizeof(b), 2);
zassert_equal(b[0], 2);
zassert_equal(b[1], 3);
zassert_equal(sizeof(c), 1);
zassert_equal(c[0], 3);
}
ZTEST(util, test_mixing_GET_ARG_and_FOR_EACH) {
#undef TEST_MACRO
#define TEST_MACRO(x) x,
int i;
i = GET_ARG_N(3, FOR_EACH(TEST_MACRO, (), 1, 2, 3, 4, 5));
zassert_equal(i, 3);
i = GET_ARG_N(2, 1, GET_ARGS_LESS_N(2, 1, 2, 3, 4, 5));
zassert_equal(i, 3);
#undef TEST_MACRO
#undef TEST_MACRO2
#define TEST_MACRO(x) GET_ARG_N(3, 1, 2, x),
#define TEST_MACRO2(...) FOR_EACH(TEST_MACRO, (), __VA_ARGS__)
int a[] = {
LIST_DROP_EMPTY(TEST_MACRO2(1, 2, 3, 4)), 5
};
zassert_equal(ARRAY_SIZE(a), 5);
zassert_equal(a[0], 1);
zassert_equal(a[1], 2);
zassert_equal(a[2], 3);
zassert_equal(a[3], 4);
zassert_equal(a[4], 5);
}
ZTEST(util, test_IS_ARRAY_ELEMENT)
{
size_t i;
size_t array[3];
uint8_t *const alias = (uint8_t *)array;
zassert_false(IS_ARRAY_ELEMENT(array, &array[-1]));
zassert_false(IS_ARRAY_ELEMENT(array, &array[ARRAY_SIZE(array)]));
zassert_false(IS_ARRAY_ELEMENT(array, &alias[1]));
for (i = 0; i < ARRAY_SIZE(array); ++i) {
zassert_true(IS_ARRAY_ELEMENT(array, &array[i]));
}
}
ZTEST(util, test_ARRAY_INDEX)
{
size_t i;
size_t array[] = {0, 1, 2, 3};
for (i = 0; i < ARRAY_SIZE(array); ++i) {
zassert_equal(array[ARRAY_INDEX(array, &array[i])], i);
}
}
ZTEST(util, test_ARRAY_FOR_EACH)
{
size_t j = -1;
size_t array[3];
ARRAY_FOR_EACH(array, i) {
j = i + 1;
}
zassert_equal(j, ARRAY_SIZE(array));
}
ZTEST(util, test_ARRAY_FOR_EACH_PTR)
{
size_t j = 0;
size_t array[3];
size_t *ptr[3];
ARRAY_FOR_EACH_PTR(array, p) {
ptr[j] = p;
++j;
}
zassert_equal(ptr[0], &array[0]);
zassert_equal(ptr[1], &array[1]);
zassert_equal(ptr[2], &array[2]);
}
ZTEST(util, test_PART_OF_ARRAY)
{
size_t i;
size_t array[3];
uint8_t *const alias = (uint8_t *)array;
ARG_UNUSED(i);
ARG_UNUSED(alias);
zassert_false(PART_OF_ARRAY(array, &array[-1]));
zassert_false(PART_OF_ARRAY(array, &array[ARRAY_SIZE(array)]));
for (i = 0; i < ARRAY_SIZE(array); ++i) {
zassert_true(PART_OF_ARRAY(array, &array[i]));
}
zassert_true(PART_OF_ARRAY(array, &alias[1]));
}
ZTEST(util, test_ARRAY_INDEX_FLOOR)
{
size_t i;
size_t array[] = {0, 1, 2, 3};
uint8_t *const alias = (uint8_t *)array;
for (i = 0; i < ARRAY_SIZE(array); ++i) {
zassert_equal(array[ARRAY_INDEX_FLOOR(array, &array[i])], i);
}
zassert_equal(array[ARRAY_INDEX_FLOOR(array, &alias[1])], 0);
}
ZTEST(util, test_BIT_MASK)
{
uint32_t bitmask0 = BIT_MASK(0);
uint32_t bitmask1 = BIT_MASK(1);
uint32_t bitmask2 = BIT_MASK(2);
uint32_t bitmask31 = BIT_MASK(31);
zassert_equal(0x00000000UL, bitmask0);
zassert_equal(0x00000001UL, bitmask1);
zassert_equal(0x00000003UL, bitmask2);
zassert_equal(0x7ffffffFUL, bitmask31);
}
ZTEST(util, test_BIT_MASK64)
{
uint64_t bitmask0 = BIT64_MASK(0);
uint64_t bitmask1 = BIT64_MASK(1);
uint64_t bitmask2 = BIT64_MASK(2);
uint64_t bitmask63 = BIT64_MASK(63);
zassert_equal(0x0000000000000000ULL, bitmask0);
zassert_equal(0x0000000000000001ULL, bitmask1);
zassert_equal(0x0000000000000003ULL, bitmask2);
zassert_equal(0x7fffffffffffffffULL, bitmask63);
}
ZTEST(util, test_IS_BIT_MASK)
{
uint32_t zero32 = 0UL;
uint64_t zero64 = 0ULL;
uint32_t bitmask1 = 0x00000001UL;
uint32_t bitmask2 = 0x00000003UL;
uint32_t bitmask31 = 0x7fffffffUL;
uint32_t bitmask32 = 0xffffffffUL;
uint64_t bitmask63 = 0x7fffffffffffffffULL;
uint64_t bitmask64 = 0xffffffffffffffffULL;
uint32_t not_bitmask32 = 0xfffffffeUL;
uint64_t not_bitmask64 = 0xfffffffffffffffeULL;
zassert_true(IS_BIT_MASK(zero32));
zassert_true(IS_BIT_MASK(zero64));
zassert_true(IS_BIT_MASK(bitmask1));
zassert_true(IS_BIT_MASK(bitmask2));
zassert_true(IS_BIT_MASK(bitmask31));
zassert_true(IS_BIT_MASK(bitmask32));
zassert_true(IS_BIT_MASK(bitmask63));
zassert_true(IS_BIT_MASK(bitmask64));
zassert_false(IS_BIT_MASK(not_bitmask32));
zassert_false(IS_BIT_MASK(not_bitmask64));
zassert_true(IS_BIT_MASK(0));
zassert_true(IS_BIT_MASK(0x00000001UL));
zassert_true(IS_BIT_MASK(0x00000003UL));
zassert_true(IS_BIT_MASK(0x7fffffffUL));
zassert_true(IS_BIT_MASK(0xffffffffUL));
zassert_true(IS_BIT_MASK(0x7fffffffffffffffUL));
zassert_true(IS_BIT_MASK(0xffffffffffffffffUL));
zassert_false(IS_BIT_MASK(0xfffffffeUL));
zassert_false(IS_BIT_MASK(0xfffffffffffffffeULL));
zassert_false(IS_BIT_MASK(0x00000002UL));
zassert_false(IS_BIT_MASK(0x8000000000000000ULL));
}
ZTEST(util, test_IS_SHIFTED_BIT_MASK)
{
uint32_t bitmask32_shift1 = 0xfffffffeUL;
uint32_t bitmask32_shift31 = 0x80000000UL;
uint64_t bitmask64_shift1 = 0xfffffffffffffffeULL;
uint64_t bitmask64_shift63 = 0x8000000000000000ULL;
zassert_true(IS_SHIFTED_BIT_MASK(bitmask32_shift1, 1));
zassert_true(IS_SHIFTED_BIT_MASK(bitmask32_shift31, 31));
zassert_true(IS_SHIFTED_BIT_MASK(bitmask64_shift1, 1));
zassert_true(IS_SHIFTED_BIT_MASK(bitmask64_shift63, 63));
zassert_true(IS_SHIFTED_BIT_MASK(0xfffffffeUL, 1));
zassert_true(IS_SHIFTED_BIT_MASK(0xfffffffffffffffeULL, 1));
zassert_true(IS_SHIFTED_BIT_MASK(0x80000000UL, 31));
zassert_true(IS_SHIFTED_BIT_MASK(0x8000000000000000ULL, 63));
}
ZTEST(util, test_DIV_ROUND_UP)
{
zassert_equal(DIV_ROUND_UP(0, 1), 0);
zassert_equal(DIV_ROUND_UP(1, 2), 1);
zassert_equal(DIV_ROUND_UP(3, 2), 2);
}
ZTEST(util, test_DIV_ROUND_CLOSEST)
{
zassert_equal(DIV_ROUND_CLOSEST(0, 1), 0);
/* 5 / 2 = 2.5 -> 3 */
zassert_equal(DIV_ROUND_CLOSEST(5, 2), 3);
zassert_equal(DIV_ROUND_CLOSEST(5, -2), -3);
zassert_equal(DIV_ROUND_CLOSEST(-5, 2), -3);
zassert_equal(DIV_ROUND_CLOSEST(-5, -2), 3);
/* 7 / 3 = 2.(3) -> 2 */
zassert_equal(DIV_ROUND_CLOSEST(7, 3), 2);
zassert_equal(DIV_ROUND_CLOSEST(-7, 3), -2);
}
ZTEST(util, test_IF_DISABLED)
{
#define test_IF_DISABLED_FLAG_A 0
#define test_IF_DISABLED_FLAG_B 1
IF_DISABLED(test_IF_DISABLED_FLAG_A, (goto skipped_a;))
/* location should be skipped if IF_DISABLED macro is correct. */
zassert_false(true, "location A should be skipped");
skipped_a:
IF_DISABLED(test_IF_DISABLED_FLAG_B, (zassert_false(true, "");))
IF_DISABLED(test_IF_DISABLED_FLAG_C, (goto skipped_c;))
/* location should be skipped if IF_DISABLED macro is correct. */
zassert_false(true, "location C should be skipped");
skipped_c:
zassert_true(true, "");
#undef test_IF_DISABLED_FLAG_A
#undef test_IF_DISABLED_FLAG_B
}
ZTEST(util, test_mem_xor_n)
{
const size_t max_len = 128;
uint8_t expected_result[max_len];
uint8_t src1[max_len];
uint8_t src2[max_len];
uint8_t dst[max_len];
memset(expected_result, 0, sizeof(expected_result));
memset(src1, 0, sizeof(src1));
memset(src2, 0, sizeof(src2));
memset(dst, 0, sizeof(dst));
for (size_t i = 0U; i < max_len; i++) {
const size_t len = i;
for (size_t j = 0U; j < len; j++) {
src1[j] = 0x33;
src2[j] = 0x0F;
expected_result[j] = 0x3C;
}
mem_xor_n(dst, src1, src2, len);
zassert_mem_equal(expected_result, dst, len);
}
}
ZTEST(util, test_mem_xor_32)
{
uint8_t expected_result[4];
uint8_t src1[4];
uint8_t src2[4];
uint8_t dst[4];
memset(expected_result, 0, sizeof(expected_result));
memset(src1, 0, sizeof(src1));
memset(src2, 0, sizeof(src2));
memset(dst, 0, sizeof(dst));
for (size_t i = 0U; i < 4; i++) {
src1[i] = 0x43;
src2[i] = 0x0F;
expected_result[i] = 0x4C;
}
mem_xor_32(dst, src1, src2);
zassert_mem_equal(expected_result, dst, 4);
}
ZTEST(util, test_mem_xor_128)
{
uint8_t expected_result[16];
uint8_t src1[16];
uint8_t src2[16];
uint8_t dst[16];
memset(expected_result, 0, sizeof(expected_result));
memset(src1, 0, sizeof(src1));
memset(src2, 0, sizeof(src2));
memset(dst, 0, sizeof(dst));
for (size_t i = 0U; i < 16; i++) {
src1[i] = 0x53;
src2[i] = 0x0F;
expected_result[i] = 0x5C;
}
mem_xor_128(dst, src1, src2);
zassert_mem_equal(expected_result, dst, 16);
}
ZTEST(util, test_CONCAT)
{
#define _CAT_PART1 1
#define CAT_PART1 _CAT_PART1
#define _CAT_PART2 2
#define CAT_PART2 _CAT_PART2
#define _CAT_PART3 3
#define CAT_PART3 _CAT_PART3
#define _CAT_PART4 4
#define CAT_PART4 _CAT_PART4
#define _CAT_PART5 5
#define CAT_PART5 _CAT_PART5
#define _CAT_PART6 6
#define CAT_PART6 _CAT_PART6
#define _CAT_PART7 7
#define CAT_PART7 _CAT_PART7
#define _CAT_PART8 8
#define CAT_PART8 _CAT_PART8
zassert_equal(CONCAT(CAT_PART1), 1);
zassert_equal(CONCAT(CAT_PART1, CAT_PART2), 12);
zassert_equal(CONCAT(CAT_PART1, CAT_PART2, CAT_PART3), 123);
zassert_equal(CONCAT(CAT_PART1, CAT_PART2, CAT_PART3, CAT_PART4), 1234);
zassert_equal(CONCAT(CAT_PART1, CAT_PART2, CAT_PART3, CAT_PART4, CAT_PART5), 12345);
zassert_equal(CONCAT(CAT_PART1, CAT_PART2, CAT_PART3, CAT_PART4, CAT_PART5, CAT_PART6),
123456);
zassert_equal(CONCAT(CAT_PART1, CAT_PART2, CAT_PART3, CAT_PART4,
CAT_PART5, CAT_PART6, CAT_PART7),
1234567);
zassert_equal(CONCAT(CAT_PART1, CAT_PART2, CAT_PART3, CAT_PART4,
CAT_PART5, CAT_PART6, CAT_PART7, CAT_PART8),
12345678);
zassert_equal(CONCAT(CAT_PART1, CONCAT(CAT_PART2, CAT_PART3)), 123);
}
ZTEST(util, test_SIZEOF_FIELD)
{
struct test_t {
uint32_t a;
uint8_t b;
uint8_t c[17];
int16_t d;
};
BUILD_ASSERT(SIZEOF_FIELD(struct test_t, a) == 4, "The a member is 4-byte wide.");
BUILD_ASSERT(SIZEOF_FIELD(struct test_t, b) == 1, "The b member is 1-byte wide.");
BUILD_ASSERT(SIZEOF_FIELD(struct test_t, c) == 17, "The c member is 17-byte wide.");
BUILD_ASSERT(SIZEOF_FIELD(struct test_t, d) == 2, "The d member is 2-byte wide.");
}
ZTEST(util, test_utf8_trunc_truncated)
{
char test_str[] = "€€€";
char expected_result[] = "€€";
/* Remove last byte from truncated_test_str and verify that it first is incorrectly
* truncated, followed by a proper truncation and verification
*/
test_str[strlen(test_str) - 1] = '\0';
zassert(strcmp(test_str, "€€€") != 0, "Failed to do invalid truncation");
zassert(strcmp(test_str, expected_result) != 0, "Failed to do invalid truncation");
utf8_trunc(test_str);
zassert_str_equal(test_str, expected_result, "Failed to truncate");
}
ZTEST(util, test_utf8_trunc_not_truncated)
{
/* Attempt to truncate a valid UTF8 string and verify no changed */
char test_str[] = "€€€";
char expected_result[] = "€€€";
utf8_trunc(test_str);
zassert_str_equal(test_str, expected_result, "Failed to truncate");
}
ZTEST(util, test_utf8_trunc_zero_length)
{
/* Attempt to truncate a valid UTF8 string and verify no changed */
char test_str[] = "";
char expected_result[] = "";
utf8_trunc(test_str);
zassert_str_equal(test_str, expected_result, "Failed to truncate");
}
ZTEST(util, test_utf8_lcpy_truncated)
{
/* dest_str size is based on storing 2 * € plus the null terminator plus an extra space to
* verify that it's truncated properly
*/
char dest_str[strlen("€") * 2 + 1 + 1];
char test_str[] = "€€€";
char expected_result[] = "€€";
utf8_lcpy(dest_str, test_str, sizeof((dest_str)));
zassert_str_equal(dest_str, expected_result, "Failed to copy");
}
ZTEST(util, test_utf8_lcpy_not_truncated)
{
/* dest_str size is based on storing 3 * € plus the null terminator */
char dest_str[strlen("€") * 3 + 1];
char test_str[] = "€€€";
char expected_result[] = "€€€";
utf8_lcpy(dest_str, test_str, sizeof((dest_str)));
zassert_str_equal(dest_str, expected_result, "Failed to truncate");
}
ZTEST(util, test_utf8_lcpy_zero_length_copy)
{
/* dest_str size is based on the null terminator */
char dest_str[1];
char test_str[] = "";
char expected_result[] = "";
utf8_lcpy(dest_str, test_str, sizeof((dest_str)));
zassert_str_equal(dest_str, expected_result, "Failed to truncate");
}
ZTEST(util, test_utf8_lcpy_zero_length_dest)
{
char dest_str[] = "A";
char test_str[] = "";
char expected_result[] = "A"; /* expect no changes to dest_str */
utf8_lcpy(dest_str, test_str, 0);
zassert_str_equal(dest_str, expected_result, "Failed to truncate");
}
ZTEST(util, test_utf8_lcpy_null_termination)
{
char dest_str[] = "DEADBEEF";
char test_str[] = "DEAD";
char expected_result[] = "DEAD";
utf8_lcpy(dest_str, test_str, sizeof(dest_str));
zassert_str_equal(dest_str, expected_result, "Failed to truncate");
}
ZTEST_SUITE(util, NULL, NULL, NULL, NULL, NULL);
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