1 files changed, 247 insertions, 0 deletions
diff --git a/v_windows/v/vlib/time/time_test.v b/v_windows/v/vlib/time/time_test.v
new file mode 100644
index 0000000..dbd3c48
--- /dev/null
+++ b/v_windows/v/vlib/time/time_test.v
@@ -0,0 +1,247 @@
+import time
+import math
+
+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() {
+	d_seconds := 3
+	d_microseconds := 13
+	duration := time.Duration(d_seconds * time.second + d_microseconds * time.microsecond)
+	t1 := time_to_test
+	t2 := time_to_test.add(duration)
+	assert t2.second == t1.second + d_seconds
+	assert t2.microsecond == t1.microsecond + d_microseconds
+	assert t2.unix == t1.unix + d_seconds
+	t3 := time_to_test.add(-duration)
+	assert t3.second == t1.second - d_seconds
+	assert t3.microsecond == t1.microsecond - d_microseconds
+	assert t3.unix == t1.unix - d_seconds
+}
+
+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 * 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(50 * time.millisecond)
+	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 - ut1 * 1000) < 1000
+	assert (utm2 - ut2 * 1000) < 1000
+	//
+	// println('utm1: $utm1 | utm2: $utm2')
+	assert utm2 - utm1 > 2
+	assert utm2 - utm1 < 999
+}
+
+fn test_offset() {
+	u := time.utc()
+	n := time.now()
+	//
+	mut diff_seconds := 0
+	if u.day != n.day {
+		if u.day > n.day {
+			diff_seconds = int(math.abs(((u.hour * 60 + u.minute) - (n.hour * 60 + n.minute)) * 60)) - 86400
+		} else {
+			diff_seconds = 86400 - int(math.abs(((u.hour * 60 + u.minute) - (n.hour * 60 + n.minute)) * 60))
+		}
+		if math.abs(u.day - n.day) > 1 { // different month
+			diff_seconds = diff_seconds * -1
+		}
+	} else { // same day
+		diff_seconds = ((n.hour * 60 + n.minute) - (u.hour * 60 + u.minute)) * 60
+	}
+
+	assert diff_seconds == time.offset()
+}