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now_test.go
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now_test.go
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package now
import (
"testing"
"time"
)
var (
format = "2006-01-02 15:04:05.999999999"
locationCaracas *time.Location
locationBerlin *time.Location
timeCaracas time.Time
)
func init() {
var err error
if locationCaracas, err = time.LoadLocation("America/Caracas"); err != nil {
panic(err)
}
if locationBerlin, err = time.LoadLocation("Europe/Berlin"); err != nil {
panic(err)
}
timeCaracas = time.Date(2016, 1, 1, 12, 10, 0, 0, locationCaracas)
}
func assertT(t *testing.T) func(time.Time, string, string) {
return func(actual time.Time, expected string, msg string) {
actualStr := actual.Format(format)
if actualStr != expected {
t.Errorf("Failed %s: actual: %v, expected: %v", msg, actualStr, expected)
}
}
}
func TestBeginningOf(t *testing.T) {
assert := assertT(t)
n := time.Date(2013, 11, 18, 17, 51, 49, 123456789, time.UTC)
assert(With(n).BeginningOfMinute(), "2013-11-18 17:51:00", "BeginningOfMinute")
WeekStartDay = time.Monday
assert(With(n).BeginningOfWeek(), "2013-11-18 00:00:00", "BeginningOfWeek, FirstDayMonday")
WeekStartDay = time.Tuesday
assert(With(n).BeginningOfWeek(), "2013-11-12 00:00:00", "BeginningOfWeek, FirstDayTuesday")
WeekStartDay = time.Wednesday
assert(With(n).BeginningOfWeek(), "2013-11-13 00:00:00", "BeginningOfWeek, FirstDayWednesday")
WeekStartDay = time.Thursday
assert(With(n).BeginningOfWeek(), "2013-11-14 00:00:00", "BeginningOfWeek, FirstDayThursday")
WeekStartDay = time.Friday
assert(With(n).BeginningOfWeek(), "2013-11-15 00:00:00", "BeginningOfWeek, FirstDayFriday")
WeekStartDay = time.Saturday
assert(With(n).BeginningOfWeek(), "2013-11-16 00:00:00", "BeginningOfWeek, FirstDaySaturday")
WeekStartDay = time.Sunday
assert(With(n).BeginningOfWeek(), "2013-11-17 00:00:00", "BeginningOfWeek, FirstDaySunday")
assert(With(n).BeginningOfHour(), "2013-11-18 17:00:00", "BeginningOfHour")
// Truncate with hour bug
assert(With(timeCaracas).BeginningOfHour(), "2016-01-01 12:00:00", "BeginningOfHour Caracas")
assert(With(n).BeginningOfDay(), "2013-11-18 00:00:00", "BeginningOfDay")
location, err := time.LoadLocation("Japan")
if err != nil {
t.Fatalf("Error loading location: %v", err)
}
beginningOfDay := time.Date(2015, 05, 01, 0, 0, 0, 0, location)
assert(With(beginningOfDay).BeginningOfDay(), "2015-05-01 00:00:00", "BeginningOfDay")
// DST
dstBeginningOfDay := time.Date(2017, 10, 29, 10, 0, 0, 0, locationBerlin)
assert(With(dstBeginningOfDay).BeginningOfDay(), "2017-10-29 00:00:00", "BeginningOfDay DST")
assert(With(n).BeginningOfWeek(), "2013-11-17 00:00:00", "BeginningOfWeek")
dstBegginingOfWeek := time.Date(2017, 10, 30, 12, 0, 0, 0, locationBerlin)
assert(With(dstBegginingOfWeek).BeginningOfWeek(), "2017-10-29 00:00:00", "BeginningOfWeek")
dstBegginingOfWeek = time.Date(2017, 10, 29, 12, 0, 0, 0, locationBerlin)
assert(With(dstBegginingOfWeek).BeginningOfWeek(), "2017-10-29 00:00:00", "BeginningOfWeek")
WeekStartDay = time.Monday
assert(With(n).BeginningOfWeek(), "2013-11-18 00:00:00", "BeginningOfWeek, FirstDayMonday")
dstBegginingOfWeek = time.Date(2017, 10, 24, 12, 0, 0, 0, locationBerlin)
assert(With(dstBegginingOfWeek).BeginningOfWeek(), "2017-10-23 00:00:00", "BeginningOfWeek, FirstDayMonday")
dstBegginingOfWeek = time.Date(2017, 10, 29, 12, 0, 0, 0, locationBerlin)
assert(With(dstBegginingOfWeek).BeginningOfWeek(), "2017-10-23 00:00:00", "BeginningOfWeek, FirstDayMonday")
WeekStartDay = time.Sunday
assert(With(n).BeginningOfMonth(), "2013-11-01 00:00:00", "BeginningOfMonth")
// DST
dstBeginningOfMonth := time.Date(2017, 10, 31, 0, 0, 0, 0, locationBerlin)
assert(With(dstBeginningOfMonth).BeginningOfMonth(), "2017-10-01 00:00:00", "BeginningOfMonth DST")
assert(With(n).BeginningOfQuarter(), "2013-10-01 00:00:00", "BeginningOfQuarter")
// DST
assert(With(dstBeginningOfMonth).BeginningOfQuarter(), "2017-10-01 00:00:00", "BeginningOfQuarter DST")
dstBeginningOfQuarter := time.Date(2017, 11, 24, 0, 0, 0, 0, locationBerlin)
assert(With(dstBeginningOfQuarter).BeginningOfQuarter(), "2017-10-01 00:00:00", "BeginningOfQuarter DST")
assert(With(dstBeginningOfQuarter).BeginningOfHalf(), "2017-07-01 00:00:00", "BeginningOfHalf DST")
assert(With(n.AddDate(0, -1, 0)).BeginningOfQuarter(), "2013-10-01 00:00:00", "BeginningOfQuarter")
assert(With(n.AddDate(0, 1, 0)).BeginningOfQuarter(), "2013-10-01 00:00:00", "BeginningOfQuarter")
assert(With(n.AddDate(0, 1, 0)).BeginningOfHalf(), "2013-07-01 00:00:00", "BeginningOfHalf")
// DST
assert(With(dstBeginningOfQuarter).BeginningOfYear(), "2017-01-01 00:00:00", "BeginningOfYear DST")
assert(With(timeCaracas).BeginningOfYear(), "2016-01-01 00:00:00", "BeginningOfYear Caracas")
}
func TestEndOf(t *testing.T) {
assert := assertT(t)
n := time.Date(2013, 11, 18, 17, 51, 49, 123456789, time.UTC)
assert(With(n).EndOfMinute(), "2013-11-18 17:51:59.999999999", "EndOfMinute")
assert(With(n).EndOfHour(), "2013-11-18 17:59:59.999999999", "EndOfHour")
assert(With(timeCaracas).EndOfHour(), "2016-01-01 12:59:59.999999999", "EndOfHour Caracas")
assert(With(n).EndOfDay(), "2013-11-18 23:59:59.999999999", "EndOfDay")
dstEndOfDay := time.Date(2017, 10, 29, 1, 0, 0, 0, locationBerlin)
assert(With(dstEndOfDay).EndOfDay(), "2017-10-29 23:59:59.999999999", "EndOfDay DST")
WeekStartDay = time.Tuesday
assert(With(n).EndOfWeek(), "2013-11-18 23:59:59.999999999", "EndOfWeek, FirstDayTuesday")
WeekStartDay = time.Wednesday
assert(With(n).EndOfWeek(), "2013-11-19 23:59:59.999999999", "EndOfWeek, FirstDayWednesday")
WeekStartDay = time.Thursday
assert(With(n).EndOfWeek(), "2013-11-20 23:59:59.999999999", "EndOfWeek, FirstDayThursday")
WeekStartDay = time.Friday
assert(With(n).EndOfWeek(), "2013-11-21 23:59:59.999999999", "EndOfWeek, FirstDayFriday")
WeekStartDay = time.Saturday
assert(With(n).EndOfWeek(), "2013-11-22 23:59:59.999999999", "EndOfWeek, FirstDaySaturday")
WeekStartDay = time.Sunday
assert(With(n).EndOfWeek(), "2013-11-23 23:59:59.999999999", "EndOfWeek, FirstDaySunday")
WeekStartDay = time.Monday
assert(With(n).EndOfWeek(), "2013-11-24 23:59:59.999999999", "EndOfWeek, FirstDayMonday")
dstEndOfWeek := time.Date(2017, 10, 24, 12, 0, 0, 0, locationBerlin)
assert(With(dstEndOfWeek).EndOfWeek(), "2017-10-29 23:59:59.999999999", "EndOfWeek, FirstDayMonday")
dstEndOfWeek = time.Date(2017, 10, 29, 12, 0, 0, 0, locationBerlin)
assert(With(dstEndOfWeek).EndOfWeek(), "2017-10-29 23:59:59.999999999", "EndOfWeek, FirstDayMonday")
WeekStartDay = time.Sunday
assert(With(n).EndOfWeek(), "2013-11-23 23:59:59.999999999", "EndOfWeek")
dstEndOfWeek = time.Date(2017, 10, 29, 0, 0, 0, 0, locationBerlin)
assert(With(dstEndOfWeek).EndOfWeek(), "2017-11-04 23:59:59.999999999", "EndOfWeek")
dstEndOfWeek = time.Date(2017, 10, 29, 12, 0, 0, 0, locationBerlin)
assert(With(dstEndOfWeek).EndOfWeek(), "2017-11-04 23:59:59.999999999", "EndOfWeek")
assert(With(n).EndOfMonth(), "2013-11-30 23:59:59.999999999", "EndOfMonth")
assert(With(n).EndOfQuarter(), "2013-12-31 23:59:59.999999999", "EndOfQuarter")
assert(With(n).EndOfHalf(), "2013-12-31 23:59:59.999999999", "EndOfHalf")
assert(With(n.AddDate(0, -1, 0)).EndOfQuarter(), "2013-12-31 23:59:59.999999999", "EndOfQuarter")
assert(With(n.AddDate(0, 1, 0)).EndOfQuarter(), "2013-12-31 23:59:59.999999999", "EndOfQuarter")
assert(With(n.AddDate(0, 1, 0)).EndOfHalf(), "2013-12-31 23:59:59.999999999", "EndOfHalf")
assert(With(n).EndOfYear(), "2013-12-31 23:59:59.999999999", "EndOfYear")
n1 := time.Date(2013, 02, 18, 17, 51, 49, 123456789, time.UTC)
assert(With(n1).EndOfMonth(), "2013-02-28 23:59:59.999999999", "EndOfMonth for 2013/02")
n2 := time.Date(1900, 02, 18, 17, 51, 49, 123456789, time.UTC)
assert(With(n2).EndOfMonth(), "1900-02-28 23:59:59.999999999", "EndOfMonth")
}
func TestMondayAndSunday(t *testing.T) {
assert := assertT(t)
n := time.Date(2013, 11, 19, 17, 51, 49, 123456789, time.UTC)
n2 := time.Date(2013, 11, 24, 17, 51, 49, 123456789, time.UTC)
nDst := time.Date(2017, 10, 29, 10, 0, 0, 0, locationBerlin)
assert(With(n).Monday(), "2013-11-18 00:00:00", "Monday")
assert(With(n2).Monday(), "2013-11-18 00:00:00", "Monday")
assert(With(timeCaracas).Monday(), "2015-12-28 00:00:00", "Monday Caracas")
assert(With(nDst).Monday(), "2017-10-23 00:00:00", "Monday DST")
assert(With(n).Monday("17:51:49"), "2013-11-18 17:51:49", "Monday")
assert(With(n).Monday("17:51"), "2013-11-18 17:51:00", "Monday")
assert(With(n).Sunday(), "2013-11-24 00:00:00", "Sunday")
assert(With(n).Sunday("18:19:20"), "2013-11-24 18:19:20", "Sunday")
assert(With(n).Sunday("18:19"), "2013-11-24 18:19:00", "Sunday")
assert(With(n2).Sunday(), "2013-11-24 00:00:00", "Sunday")
assert(With(timeCaracas).Sunday(), "2016-01-03 00:00:00", "Sunday Caracas")
assert(With(nDst).Sunday(), "2017-10-29 00:00:00", "Sunday DST")
assert(With(n).EndOfSunday(), "2013-11-24 23:59:59.999999999", "EndOfSunday")
assert(With(timeCaracas).EndOfSunday(), "2016-01-03 23:59:59.999999999", "EndOfSunday Caracas")
assert(With(nDst).EndOfSunday(), "2017-10-29 23:59:59.999999999", "EndOfSunday DST")
assert(With(n).BeginningOfWeek(), "2013-11-17 00:00:00", "BeginningOfWeek, FirstDayMonday")
WeekStartDay = time.Monday
assert(With(n).BeginningOfWeek(), "2013-11-18 00:00:00", "BeginningOfWeek, FirstDayMonday")
}
func TestParse(t *testing.T) {
assert := assertT(t)
n := time.Date(2013, 11, 18, 17, 51, 49, 123456789, time.UTC)
assert(With(n).MustParse("2002"), "2002-01-01 00:00:00", "Parse 2002")
assert(With(n).MustParse("2002-10"), "2002-10-01 00:00:00", "Parse 2002-10")
assert(With(n).MustParse("2002-10-12"), "2002-10-12 00:00:00", "Parse 2002-10-12")
assert(With(n).MustParse("2002-10-12 22"), "2002-10-12 22:00:00", "Parse 2002-10-12 22")
assert(With(n).MustParse("2002-10-12 22:14"), "2002-10-12 22:14:00", "Parse 2002-10-12 22:14")
assert(With(n).MustParse("2002-10-12 2:4"), "2002-10-12 02:04:00", "Parse 2002-10-12 2:4")
assert(With(n).MustParse("2002-10-12 02:04"), "2002-10-12 02:04:00", "Parse 2002-10-12 02:04")
assert(With(n).MustParse("2002-10-12 22:14:56"), "2002-10-12 22:14:56", "Parse 2002-10-12 22:14:56")
assert(With(n).MustParse("2002-10-12 00:14:56"), "2002-10-12 00:14:56", "Parse 2002-10-12 00:14:56")
assert(With(n).MustParse("2013-12-19 23:28:09.999999999 +0800 CST"), "2013-12-19 23:28:09.999999999", "Parse two strings 2013-12-19 23:28:09.999999999 +0800 CST")
assert(With(n).MustParse("10-12"), "2013-10-12 00:00:00", "Parse 10-12")
assert(With(n).MustParse("18"), "2013-11-18 18:00:00", "Parse 18 as hour")
assert(With(n).MustParse("18:20"), "2013-11-18 18:20:00", "Parse 18:20")
assert(With(n).MustParse("00:01"), "2013-11-18 00:01:00", "Parse 00:01")
assert(With(n).MustParse("00:00:00"), "2013-11-18 00:00:00", "Parse 00:00:00")
assert(With(n).MustParse("18:20:39"), "2013-11-18 18:20:39", "Parse 18:20:39")
assert(With(n).MustParse("18:20:39", "2011-01-01"), "2011-01-01 18:20:39", "Parse two strings 18:20:39, 2011-01-01")
assert(With(n).MustParse("2011-1-1", "18:20:39"), "2011-01-01 18:20:39", "Parse two strings 2011-01-01, 18:20:39")
assert(With(n).MustParse("2011-01-01", "18"), "2011-01-01 18:00:00", "Parse two strings 2011-01-01, 18")
assert(With(n).MustParse("2002-10-12T00:14:56Z"), "2002-10-12 00:14:56", "Parse 2002-10-12T00:14:56Z")
assert(With(n).MustParse("2002-10-12T00:00:56Z"), "2002-10-12 00:00:56", "Parse 2002-10-12T00:00:56Z")
assert(With(n).MustParse("2002-10-12T00:00:00.999Z"), "2002-10-12 00:00:00.999", "Parse 2002-10-12T00:00:00.999Z")
assert(With(n).MustParse("2002-10-12T00:14:56.999999Z"), "2002-10-12 00:14:56.999999", "Parse 2002-10-12T00:14:56.999999Z")
assert(With(n).MustParse("2002-10-12T00:00:56.999999999Z"), "2002-10-12 00:00:56.999999999", "Parse 2002-10-12T00:00:56.999999999Z")
assert(With(n).MustParse("2002-10-12T00:14:56+08:00"), "2002-10-12 00:14:56", "Parse 2002-10-12T00:14:56+08:00")
_, off := With(n).MustParse("2002-10-12T00:14:56+08:00").Zone()
if (off != 28800) {
t.Errorf("Parse 2002-10-12T00:14:56+08:00 shouldn't lose time zone offset")
}
assert(With(n).MustParse("2002-10-12T00:00:56-07:00"), "2002-10-12 00:00:56", "Parse 2002-10-12T00:00:56-07:00")
_, off2 := With(n).MustParse("2002-10-12T00:00:56-07:00").Zone()
if (off2 != -25200){
t.Errorf("Parse 2002-10-12T00:00:56-07:00 shouldn't lose time zone offset")
}
assert(With(n).MustParse("2002-10-12T00:01:12.333+0200"), "2002-10-12 00:01:12.333", "Parse 2002-10-12T00:01:12.333+0200")
_, off3 := With(n).MustParse("2002-10-12T00:01:12.333+0200").Zone()
if (off3 != 7200){
t.Errorf("Parse 2002-10-12T00:01:12.333+0200 shouldn't lose time zone offset")
}
assert(With(n).MustParse("2002-10-12T00:00:56.999999999+08:00"), "2002-10-12 00:00:56.999999999", "Parse 2002-10-12T00:00:56.999999999+08:00")
_, off4 := With(n).MustParse("2002-10-12T00:14:56.999999999+08:00").Zone()
if (off4 != 28800) {
t.Errorf("Parse 2002-10-12T00:14:56.999999999+08:00 shouldn't lose time zone offset")
}
assert(With(n).MustParse("2002-10-12T00:00:56.666666-07:00"), "2002-10-12 00:00:56.666666", "Parse 2002-10-12T00:00:56.666666-07:00")
_, off5 := With(n).MustParse("2002-10-12T00:00:56.666666-07:00").Zone()
if (off5 != -25200){
t.Errorf("Parse 2002-10-12T00:00:56.666666-07:00 shouldn't lose time zone offset")
}
assert(With(n).MustParse("2002-10-12T00:01:12.999999999-06"), "2002-10-12 00:01:12.999999999", "Parse 2002-10-12T00:01:12.999999999-06")
_, off6 := With(n).MustParse("2002-10-12T00:01:12.999999999-06").Zone()
if (off6 != -21600){
t.Errorf("Parse 2002-10-12T00:01:12.999999999-06 shouldn't lose time zone offset")
}
TimeFormats = append(TimeFormats, "02 Jan 15:04")
assert(With(n).MustParse("04 Feb 12:09"), "2013-02-04 12:09:00", "Parse 04 Feb 12:09 with specified format")
assert(With(n).MustParse("23:28:9 Dec 19, 2013 PST"), "2013-12-19 23:28:09", "Parse 23:28:9 Dec 19, 2013 PST")
if With(n).MustParse("23:28:9 Dec 19, 2013 PST").Location().String() != "PST" {
t.Errorf("Parse 23:28:9 Dec 19, 2013 PST shouldn't lose time zone")
}
n2 := With(n).MustParse("23:28:9 Dec 19, 2013 PST")
if With(n2).MustParse("10:20").Location().String() != "PST" {
t.Errorf("Parse 10:20 shouldn't change time zone")
}
TimeFormats = append(TimeFormats, "2006-01-02T15:04:05.0")
if MustParseInLocation(time.UTC, "2018-02-13T15:17:06.0").String() != "2018-02-13 15:17:06 +0000 UTC" {
t.Errorf("ParseInLocation 2018-02-13T15:17:06.0")
}
TimeFormats = append(TimeFormats, "2006-01-02 15:04:05.000")
assert(With(n).MustParse("2018-04-20 21:22:23.473"), "2018-04-20 21:22:23.473", "Parse 2018/04/20 21:22:23.473")
TimeFormats = append(TimeFormats, "15:04:05.000")
assert(With(n).MustParse("13:00:01.365"), "2013-11-18 13:00:01.365", "Parse 13:00:01.365")
TimeFormats = append(TimeFormats, "2006-01-02 15:04:05.000000")
assert(With(n).MustParse("2010-01-01 07:24:23.131384"), "2010-01-01 07:24:23.131384", "Parse 2010-01-01 07:24:23.131384")
assert(With(n).MustParse("00:00:00.182736"), "2013-11-18 00:00:00.182736", "Parse 00:00:00.182736")
n3 := MustParse("2017-12-11T10:25:49Z")
if n3.Location() != time.UTC {
t.Errorf("time location should be UTC, but got %v", n3.Location())
}
}
func TestBetween(t *testing.T) {
tm := time.Date(2015, 06, 30, 17, 51, 49, 123456789, time.Now().Location())
if !With(tm).Between("23:28:9 Dec 19, 2013 PST", "23:28:9 Dec 19, 2015 PST") {
t.Errorf("Between")
}
if !With(tm).Between("2015-05-12 12:20", "2015-06-30 17:51:50") {
t.Errorf("Between")
}
}
func TestConfig(t *testing.T) {
assert := assertT(t)
location, err := time.LoadLocation("Asia/Shanghai")
if err != nil {
t.Errorf("load location for Asia/Shanghai should returns no error, but got %v", err)
}
myConfig := Config{
WeekStartDay: time.Monday,
TimeLocation: location,
TimeFormats: []string{"2006-01-02 15:04:05"},
}
n := time.Date(2013, 11, 18, 17, 51, 49, 123456789, time.Now().Location()) // // 2013-11-18 17:51:49.123456789 Mon
assert(myConfig.With(n).BeginningOfWeek(), "2013-11-18 00:00:00", "BeginningOfWeek, FirstDayMonday")
if result, _ := myConfig.Parse("2018-02-13 15:17:06"); result.String() != "2018-02-13 15:17:06 +0800 CST" {
t.Errorf("ParseInLocation 2018-02-13T15:17:06.0, got %v", result)
}
if result := myConfig.MustParse("2018-02-13 15:17:06"); result.String() != "2018-02-13 15:17:06 +0800 CST" {
t.Errorf("ParseInLocation 2018-02-13T15:17:06.0, got %v", result)
}
}
func TestQuarter(t *testing.T) {
type test struct {
givenDate time.Time
expectedQuarter uint
}
tests := []test{
{time.Date(2021, 6, 18, 0, 0, 0, 0, time.UTC), 2},
{time.Date(2021, 7, 18, 0, 0, 0, 0, time.UTC), 3},
}
for _, tc := range tests {
got := With(tc.givenDate).Quarter()
if got != tc.expectedQuarter {
t.Fatalf("Quarter %d expected, got %d", tc.expectedQuarter, got)
}
}
}
func Example() {
time.Now() // 2013-11-18 17:51:49.123456789 Mon
BeginningOfMinute() // 2013-11-18 17:51:00 Mon
BeginningOfHour() // 2013-11-18 17:00:00 Mon
BeginningOfDay() // 2013-11-18 00:00:00 Mon
BeginningOfWeek() // 2013-11-17 00:00:00 Sun
WeekStartDay = time.Monday // Set Monday as first day
BeginningOfWeek() // 2013-11-18 00:00:00 Mon
BeginningOfMonth() // 2013-11-01 00:00:00 Fri
BeginningOfQuarter() // 2013-10-01 00:00:00 Tue
BeginningOfYear() // 2013-01-01 00:00:00 Tue
EndOfMinute() // 2013-11-18 17:51:59.999999999 Mon
EndOfHour() // 2013-11-18 17:59:59.999999999 Mon
EndOfDay() // 2013-11-18 23:59:59.999999999 Mon
EndOfWeek() // 2013-11-23 23:59:59.999999999 Sat
WeekStartDay = time.Monday // Set Monday as first day
EndOfWeek() // 2013-11-24 23:59:59.999999999 Sun
EndOfMonth() // 2013-11-30 23:59:59.999999999 Sat
EndOfQuarter() // 2013-12-31 23:59:59.999999999 Tue
EndOfYear() // 2013-12-31 23:59:59.999999999 Tue
// Use another time
t := time.Date(2013, 02, 18, 17, 51, 49, 123456789, time.UTC)
With(t).EndOfMonth() // 2013-02-28 23:59:59.999999999 Thu
Monday() // 2013-11-18 00:00:00 Mon
Monday("17:44") // 2013-11-18 17:44:00 Mon
Sunday() // 2013-11-24 00:00:00 Sun
Sunday("17:44") // 2013-11-24 17:44:00 Sun
EndOfSunday() // 2013-11-24 23:59:59.999999999 Sun
}