// SPDX-License-Identifier: GPL-2.0-only #include #include struct test_case_params { u64 base; unsigned int exponent; u64 expected_result; const char *name; }; static const struct test_case_params params[] = { { 64, 0, 1, "Power of zero" }, { 64, 1, 64, "Power of one"}, { 0, 5, 0, "Base zero" }, { 1, 64, 1, "Base one" }, { 2, 2, 4, "Two squared"}, { 2, 3, 8, "Two cubed"}, { 5, 5, 3125, "Five raised to the fifth power" }, { U64_MAX, 1, U64_MAX, "Max base" }, { 2, 63, 9223372036854775808ULL, "Large result"}, }; static void get_desc(const struct test_case_params *tc, char *desc) { strscpy(desc, tc->name, KUNIT_PARAM_DESC_SIZE); } KUNIT_ARRAY_PARAM(int_pow, params, get_desc); static void int_pow_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, int_pow(tc->base, tc->exponent)); } static struct kunit_case math_int_pow_test_cases[] = { KUNIT_CASE_PARAM(int_pow_test, int_pow_gen_params), {} }; static struct kunit_suite int_pow_test_suite = { .name = "math-int_pow", .test_cases = math_int_pow_test_cases, }; kunit_test_suites(&int_pow_test_suite); MODULE_DESCRIPTION("math.int_pow KUnit test suite"); MODULE_LICENSE("GPL");