import time const ( time_to_test = time.Time{ year: 1980 month: 7 day: 11 hour: 21 minute: 23 second: 42 microsecond: 123456 unix: 332198622 } ) fn test_is_leap_year() { // 1996 % 4 = 0 and 1996 % 100 > 0 assert time.is_leap_year(1996) == true // 2000 % 4 = 0 and 2000 % 400 = 0 assert time.is_leap_year(2000) == true // 1996 % 4 > 0 assert time.is_leap_year(1997) == false // 2000 % 4 = 0 and 2000 % 100 = 0 assert time.is_leap_year(2100) == false } fn check_days_in_month(month int, year int, expected int) bool { res := time.days_in_month(month, year) or { return false } return res == expected } fn test_days_in_month() { days_in_month := [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] for i, days in days_in_month { month := i + 1 assert check_days_in_month(month, 2001, days) } } fn test_unix() { t := time.unix(1564366499) assert t.year == 2019 assert t.month == 7 assert t.day == 29 assert t.hour == 2 assert t.minute == 14 assert t.second == 59 t2 := time.unix(1078058096) assert t2.year == 2004 assert t2.month == 2 assert t2.day == 29 assert t2.hour == 12 assert t2.minute == 34 assert t2.second == 56 t3 := time.unix(1070236799) assert t3.year == 2003 assert t3.month == 11 assert t3.day == 30 assert t3.hour == 23 assert t3.minute == 59 assert t3.second == 59 t4 := time.unix(1577783439) assert t4.year == 2019 assert t4.month == 12 assert t4.day == 31 assert t4.hour == 9 assert t4.minute == 10 assert t4.second == 39 t5 := time.unix(-1824922433) assert t5.year == 1912 assert t5.month == 3 assert t5.day == 4 assert t5.hour == 5 assert t5.minute == 6 assert t5.second == 7 t6 := time.unix(1577858969) assert t6.year == 2020 assert t6.month == 1 assert t6.day == 1 assert t6.hour == 6 assert t6.minute == 9 assert t6.second == 29 } fn test_format_ss() { assert '11.07.1980 21:23:42' == time_to_test.get_fmt_str(.dot, .hhmmss24, .ddmmyyyy) } fn test_format_ss_milli() { assert '11.07.1980 21:23:42.123' == time_to_test.get_fmt_str(.dot, .hhmmss24_milli, .ddmmyyyy) assert '1980-07-11 21:23:42.123' == time_to_test.format_ss_milli() } fn test_format_ss_micro() { assert '11.07.1980 21:23:42.123456' == time_to_test.get_fmt_str(.dot, .hhmmss24_micro, .ddmmyyyy) assert '1980-07-11 21:23:42.123456' == time_to_test.format_ss_micro() } fn test_smonth() { month_names := ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec', ] for i, name in month_names { month_num := i + 1 t := time.Time{ year: 1980 month: month_num day: 1 hour: 0 minute: 0 second: 0 unix: 0 } assert t.smonth() == name } } fn test_day_of_week() { for i in 0 .. 7 { day_of_week := i + 1 // 2 Dec 2019 is Monday t := time.Time{ year: 2019 month: 12 day: 2 + i hour: 0 minute: 0 second: 0 unix: 0 } assert day_of_week == t.day_of_week() } } fn test_weekday_str() { day_names := ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'] for i, name in day_names { // 2 Dec 2019 is Monday t := time.Time{ year: 2019 month: 12 day: 2 + i hour: 0 minute: 0 second: 0 unix: 0 } assert t.weekday_str() == name } } fn test_add_days() { num_of_days := 3 t := time_to_test.add_days(num_of_days) assert t.day == time_to_test.day + num_of_days assert t.unix == time_to_test.unix + 86400 * u64(num_of_days) } fn test_str() { assert '1980-07-11 21:23:42' == time_to_test.str() } // not optimal test but will find obvious bugs fn test_now() { now := time.now() // The year the test was built assert now.year >= 2020 assert now.month > 0 assert now.month <= 12 assert now.minute >= 0 assert now.minute < 60 assert now.second >= 0 assert now.second <= 60 // <= 60 cause of leap seconds assert now.microsecond >= 0 assert now.microsecond < 1000000 } fn test_utc() { now := time.utc() // The year the test was built assert now.year >= 2020 assert now.month > 0 assert now.month <= 12 assert now.minute >= 0 assert now.minute < 60 assert now.second >= 0 assert now.second <= 60 // <= 60 cause of leap seconds assert now.microsecond >= 0 assert now.microsecond < 1000000 } fn test_unix_time() { t1 := time.utc() time.sleep_ms(50) t2 := time.utc() ut1 := t1.unix_time() ut2 := t2.unix_time() assert ut2 - ut1 < 2 // utm1 := t1.unix_time_milli() utm2 := t2.unix_time_milli() assert (utm1 - u64(ut1) * 1000) < 1000 assert (utm2 - u64(ut2) * 1000) < 1000 // // println('utm1: $utm1 | utm2: $utm2') assert utm2 - utm1 > 2 assert utm2 - utm1 < 999 }