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/*
* Copyright (c) 2006-2024, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-05-06 Phillip Johnston the first version
* 2024-12-24 Meco Man port to utest
*/
#include <rtklibc.h>
#include <utest.h>
static void TC_rt_memcmp_str(void)
{
const char* s = "abc 123";
uassert_int_equal(rt_memcmp("abc", "abc", 4), 0);
uassert_int_equal(rt_memcmp(s, "abc", 3), 0);
uassert_int_equal(rt_memcmp("abc", s, 3), 0);
/* The following tests intentionally use a length > 3 */
/* To test what rt_memcmp does in such a situation */
uassert_value_greater(rt_memcmp(s, "abc", 6), 0);
uassert_value_less(rt_memcmp("abc", s, 6), 0);
}
static void TC_rt_memcmp_int_array(void)
{
int arr1[] = {1, 2, 3, 4, 5};
int arr2[] = {1, 2, 3, 4, 5};
int arr3[] = {1, 2, 3, 4, 6};
uassert_int_equal(rt_memcmp(arr1, arr2, sizeof(arr1)), 0);
uassert_value_less(rt_memcmp(arr1, arr3, sizeof(arr1)), 0);
uassert_value_greater(rt_memcmp(arr3, arr1, sizeof(arr1)), 0);
}
static void TC_rt_memcmp_float_array(void)
{
float arr1[] = {1.0f, 2.0f, 3.0f};
float arr2[] = {1.0f, 2.0f, 3.0f};
float arr3[] = {1.0f, 2.0f, 3.1f};
uassert_int_equal(rt_memcmp(arr1, arr2, sizeof(arr1)), 0);
uassert_value_less(rt_memcmp(arr1, arr3, sizeof(arr1)), 0);
uassert_value_greater(rt_memcmp(arr3, arr1, sizeof(arr1)), 0);
}
typedef struct {
int id;
float value;
} Item;
static void TC_rt_memcmp_struct_array(void)
{
Item arr1[] = {{1, 1.0f}, {2, 2.0f}};
Item arr2[] = {{1, 1.0f}, {2, 2.0f}};
Item arr3[] = {{1, 1.0f}, {2, 2.1f}};
uassert_int_equal(rt_memcmp(arr1, arr2, sizeof(arr1)), 0);
uassert_value_less(rt_memcmp(arr1, arr3, sizeof(arr1)), 0);
uassert_value_greater(rt_memcmp(arr3, arr1, sizeof(arr1)), 0);
}
typedef struct {
int id;
float value;
char name[10];
} MixedItem;
static void TC_rt_memcmp_mixed_array(void)
{
MixedItem arr1[] = {{1, 1.0f, "item1"}, {2, 2.0f, "item2"}};
MixedItem arr2[] = {{1, 1.0f, "item1"}, {2, 2.0f, "item2"}};
MixedItem arr3[] = {{1, 1.0f, "item1"}, {2, 2.1f, "item2"}};
uassert_int_equal(rt_memcmp(arr1, arr2, sizeof(arr1)), 0);
uassert_value_less(rt_memcmp(arr1, arr3, sizeof(arr1)), 0);
uassert_value_greater(rt_memcmp(arr3, arr1, sizeof(arr1)), 0);
}
typedef struct {
int id;
float score;
} Student;
typedef struct {
Student students[3];
char className[10];
} Class;
static void TC_rt_memcmp_nested_struct_array(void)
{
Class class1 = {
.students = {{1, 90.5}, {2, 85.0}, {3, 92.0}},
.className = "ClassA"
};
Class class2 = {
.students = {{1, 90.5}, {2, 85.0}, {3, 92.0}},
.className = "ClassA"
};
Class class3 = {
.students = {{1, 90.5}, {2, 85.1}, {3, 92.0}},
.className = "ClassA"
};
uassert_int_equal(rt_memcmp(&class1, &class2, sizeof(Class)), 0);
uassert_int_not_equal(rt_memcmp(&class1, &class3, sizeof(Class)), 0);
}
static void TC_rt_memcmp_partial_match(void)
{
char arr1[] = "abcdefghijklmnopqrstuvwxyz";
char arr2[] = "abcdefghijklmxyznopqrstuvw";
uassert_int_equal(rt_memcmp(arr1, arr2, 13), 0);
uassert_int_not_equal(rt_memcmp(arr1, arr2, sizeof(arr1)), 0);
}
#define LARGE_ARRAY_SIZE 500
static void TC_rt_memcmp_large_array(void)
{
int *arr1 = rt_calloc(LARGE_ARRAY_SIZE, sizeof(int));
int *arr2 = rt_calloc(LARGE_ARRAY_SIZE, sizeof(int));
uassert_not_null(arr1);
uassert_not_null(arr2);
for (int i = 0; i < LARGE_ARRAY_SIZE; i++) {
arr1[i] = i;
arr2[i] = i;
}
uassert_int_equal(rt_memcmp(arr1, arr2, LARGE_ARRAY_SIZE * sizeof(int)), 0);
arr2[LARGE_ARRAY_SIZE - 1] = LARGE_ARRAY_SIZE;
uassert_value_less(rt_memcmp(arr1, arr2, LARGE_ARRAY_SIZE * sizeof(int)), 0);
uassert_value_greater(rt_memcmp(arr2, arr1, LARGE_ARRAY_SIZE * sizeof(int)), 0);
rt_free(arr1);
rt_free(arr2);
}
static void utest_do_tc(void)
{
UTEST_UNIT_RUN(TC_rt_memcmp_str);
UTEST_UNIT_RUN(TC_rt_memcmp_int_array);
UTEST_UNIT_RUN(TC_rt_memcmp_float_array);
UTEST_UNIT_RUN(TC_rt_memcmp_struct_array);
UTEST_UNIT_RUN(TC_rt_memcmp_mixed_array);
UTEST_UNIT_RUN(TC_rt_memcmp_nested_struct_array);
UTEST_UNIT_RUN(TC_rt_memcmp_partial_match);
UTEST_UNIT_RUN(TC_rt_memcmp_large_array);
}
UTEST_TC_EXPORT(utest_do_tc, "core.klibc.rt_memcmp", RT_NULL, RT_NULL, 1000);
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