// SPDX-License-Identifier: GPL-2.0-only
#include <kunit/test.h>
#include <linux/gcd.h>
#include <linux/limits.h>
struct test_case_params {
unsigned long val1;
unsigned long val2;
unsigned long expected_result;
const char *name;
};
static const struct test_case_params params[] = {
{ 48 , 18 , 6 , "GCD of 48 and 18" },
{ 18 , 48 , 6 , "GCD of 18 and 48" },
{ 56 , 98 , 14 , "GCD of 56 and 98" },
{ 17 , 13 , 1 , "Coprime numbers" },
{ 101 , 103 , 1 , "Coprime numbers" },
{ 270 , 192 , 6 , "GCD of 270 and 192" },
{ 0 , 5 , 5 , "GCD with zero" },
{ 7 , 0 , 7 , "GCD with zero reversed" },
{ 36 , 36 , 36 , "GCD of identical numbers" },
{ ULONG_MAX, 1 , 1 , "GCD of max ulong and 1" },
{ ULONG_MAX, ULONG_MAX, ULONG_MAX, "GCD of max ulong values" },
};
static void get_desc(const struct test_case_params *tc, char *desc)
{
strscpy(desc, tc->name, KUNIT_PARAM_DESC_SIZE);
}
KUNIT_ARRAY_PARAM(gcd, params, get_desc);
static void gcd_test(struct kunit *test)
{
const struct test_case_params *tc = (const struct test_case_params *)test->param_value;
KUNIT_EXPECT_EQ(test, tc->expected_result, gcd(tc->val1, tc->val2));
}
static struct kunit_case math_gcd_test_cases[] = {
KUNIT_CASE_PARAM(gcd_test, gcd_gen_params),
{}
};
static struct kunit_suite gcd_test_suite = {
.name = "math-gcd" ,
.test_cases = math_gcd_test_cases,
};
kunit_test_suite(gcd_test_suite);
MODULE_LICENSE("GPL" );
MODULE_DESCRIPTION("math.gcd KUnit test suite" );
MODULE_AUTHOR("Yu-Chun Lin <eleanor15x@gmail.com>" );
Messung V0.5 in Prozent C=93 H=92 G=92
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-06-07)
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