void testDateEpoch(
Test * pTest)
{
uint32_t days = 0;
uint16_t year = 0, test_year = 0;
uint8_t month = 0, test_month = 0;
uint8_t day = 0, test_day = 0;
days = days_since_epoch(1900, 1, 1);
ct_test(pTest, days == 0);
days_since_epoch_into_ymd(days, &year, &month, &day);
ct_test(pTest, year == 1900);
ct_test(pTest, month == 1);
ct_test(pTest, day == 1);
for (year = 1900; year <= 2154; year++) {
for (month = 1; month <= 12; month++) {
for (day = 1; day <= month_days(year, month); day++) {
days = days_since_epoch(year, month, day);
days_since_epoch_into_ymd(days, &test_year, &test_month,
&test_day);
ct_test(pTest, year == test_year);
ct_test(pTest, month == test_month);
ct_test(pTest, day == test_day);
}
}
}
}
/** Utility to add or subtract minutes to a BACnet DateTime structure
*
* @param bdatetime [in] the starting date and time
* @param minutes [in] number of minutes to add or subtract from the time
*/
void datetime_add_minutes(
BACNET_DATE_TIME * bdatetime,
int32_t minutes)
{
uint32_t bdatetime_minutes = 0;
uint32_t bdatetime_days = 0;
int32_t days = 0;
/* convert bdatetime to seconds and days */
bdatetime_minutes =
seconds_since_midnight(bdatetime->time.hour, bdatetime->time.min,
bdatetime->time.sec) / 60;
bdatetime_days =
days_since_epoch(bdatetime->date.year, bdatetime->date.month,
bdatetime->date.day);
/* add */
days = minutes / (24 * 60);
bdatetime_days += days;
minutes -= (days * 24 * 60);
bdatetime_minutes += minutes;
days = bdatetime_minutes / (24 * 60);
bdatetime_days += days;
/* convert bdatetime from seconds and days */
seconds_since_midnight_into_hms(bdatetime_minutes * 60,
&bdatetime->time.hour, &bdatetime->time.min, NULL);
days_since_epoch_into_ymd(bdatetime_days, &bdatetime->date.year,
&bdatetime->date.month, &bdatetime->date.day);
bdatetime->date.wday =
day_of_week(bdatetime->date.year, bdatetime->date.month,
bdatetime->date.day);
}
void datetime_days_since_epoch_into_date(
uint32_t days,
BACNET_DATE * bdate)
{
uint16_t year = 0;
uint8_t month = 0;
uint8_t day = 0;
days_since_epoch_into_ymd(days, &year, &month, &day);
datetime_set_date(bdate, year, month, day);
}
