Something went wrong. Try again.
(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
Something went wrong. Try again.
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107// SPDX-License-Identifier: LGPL-2.1+
#include <kunit/test.h>#include <linux/rtc.h>
/* * Advance a date by one day. */static void advance_date(int *year, int *month, int *mday, int *yday, int *wday){ *wday = (*wday + 1) % 7;
if (*mday != rtc_month_days(*month - 1, *year)) { ++*mday; ++*yday; return; }
*mday = 1; if (*month != 12) { ++*month; ++*yday; return; }
*month = 1; *yday = 1; ++*year;}
/* * Check every day in specified number of years interval starting on 1970-01-01 * against the expected result. */static void rtc_time64_to_tm_test_date_range(struct kunit *test, int years){ /* * years = (years / 400) * 400 years * = (years / 400) * 146097 days * = (years / 400) * 146097 * 86400 seconds */ time64_t total_secs = ((time64_t)years) / 400 * 146097 * 86400;
int year = 1900; int month = 1; int mday = 1; int yday = 1; int wday = 1; /* Jan 1st 1900 was a Monday */
struct rtc_time result; time64_t secs; const time64_t sec_offset = RTC_TIMESTAMP_BEGIN_1900 + ((1 * 60) + 2) * 60 + 3;
for (secs = 0; secs <= total_secs; secs += 86400) {
rtc_time64_to_tm(secs + sec_offset, &result);
#define FAIL_MSG "%d/%02d/%02d (%2d, %d) : %lld", \ year, month, mday, yday, wday, secs + sec_offset
KUNIT_ASSERT_EQ_MSG(test, year - 1900, result.tm_year, FAIL_MSG); KUNIT_ASSERT_EQ_MSG(test, month - 1, result.tm_mon, FAIL_MSG); KUNIT_ASSERT_EQ_MSG(test, mday, result.tm_mday, FAIL_MSG); KUNIT_ASSERT_EQ_MSG(test, yday, result.tm_yday, FAIL_MSG); KUNIT_ASSERT_EQ_MSG(test, 1, result.tm_hour, FAIL_MSG); KUNIT_ASSERT_EQ_MSG(test, 2, result.tm_min, FAIL_MSG); KUNIT_ASSERT_EQ_MSG(test, 3, result.tm_sec, FAIL_MSG); KUNIT_ASSERT_EQ_MSG(test, wday, result.tm_wday, FAIL_MSG);
advance_date(&year, &month, &mday, &yday, &wday); }}
/* * Checks every day in a 160000 years interval starting on 1900-01-01 * against the expected result. */static void rtc_time64_to_tm_test_date_range_160000(struct kunit *test){ rtc_time64_to_tm_test_date_range(test, 160000);}
/* * Checks every day in a 1000 years interval starting on 1900-01-01 * against the expected result. */static void rtc_time64_to_tm_test_date_range_1000(struct kunit *test){ rtc_time64_to_tm_test_date_range(test, 1000);}
static struct kunit_case rtc_lib_test_cases[] = { KUNIT_CASE(rtc_time64_to_tm_test_date_range_1000), KUNIT_CASE_SLOW(rtc_time64_to_tm_test_date_range_160000), {}};
static struct kunit_suite rtc_lib_test_suite = { .name = "rtc_lib_test_cases", .test_cases = rtc_lib_test_cases,};
kunit_test_suite(rtc_lib_test_suite);
MODULE_DESCRIPTION("KUnit test for RTC lib functions");MODULE_LICENSE("GPL");