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int_log_kunit.c


products/Sources/formale Sprachen/C/Linux/lib/math/tests/int_log_kunit.c

// SPDX-License-Identifier: GPL-2.0-only #include #include struct test_case_params { u32 value; unsigned int expected_result; const char *name; }; /* The expected result takes into account the log error */ static const struct test_case_params intlog2_params[] = { {0, 0, "Log base 2 of 0"}, {1, 0, "Log base 2 of 1"}, {2, 16777216, "Log base 2 of 2"}, {3, 26591232, "Log base 2 of 3"}, {4, 33554432, "Log base 2 of 4"}, {8, 50331648, "Log base 2 of 8"}, {16, 67108864, "Log base 2 of 16"}, {32, 83886080, "Log base 2 of 32"}, {U32_MAX, 536870911, "Log base 2 of MAX"}, }; static const struct test_case_params intlog10_params[] = { {0, 0, "Log base 10 of 0"}, {1, 0, "Log base 10 of 1"}, {6, 13055203, "Log base 10 of 6"}, {10, 16777225, "Log base 10 of 10"}, {100, 33554450, "Log base 10 of 100"}, {1000, 50331675, "Log base 10 of 1000"}, {10000, 67108862, "Log base 10 of 10000"}, {U32_MAX, 161614247, "Log base 10 of MAX"} }; static void get_desc(const struct test_case_params *tc, char *desc) { strscpy(desc, tc->name, KUNIT_PARAM_DESC_SIZE); } KUNIT_ARRAY_PARAM(intlog2, intlog2_params, get_desc); static void intlog2_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, intlog2(tc->value)); } KUNIT_ARRAY_PARAM(intlog10, intlog10_params, get_desc); static void intlog10_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, intlog10(tc->value)); } static struct kunit_case math_int_log_test_cases[] = { KUNIT_CASE_PARAM(intlog2_test, intlog2_gen_params), KUNIT_CASE_PARAM(intlog10_test, intlog10_gen_params), {} }; static struct kunit_suite int_log_test_suite = { .name = "math-int_log", .test_cases = math_int_log_test_cases, }; kunit_test_suites(&int_log_test_suite); MODULE_DESCRIPTION("math.int_log KUnit test suite"); MODULE_LICENSE("GPL");

                                                                                                                                                                                                                                                                                                                                                                                                     

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