go-chart/date_test.go

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package chart
import (
"testing"
"time"
assert "github.com/blendlabs/go-assert"
)
func parse(v string) time.Time {
ts, _ := time.Parse("2006-01-02", v)
return ts
}
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func TestDateTime(t *testing.T) {
assert := assert.New(t)
ts := Date.Time(5, 6, 7, 8, time.UTC)
assert.Equal(05, ts.Hour())
assert.Equal(06, ts.Minute())
assert.Equal(07, ts.Second())
assert.Equal(8, ts.Nanosecond())
assert.Equal(time.UTC, ts.Location())
}
func TestDateDate(t *testing.T) {
assert := assert.New(t)
ts := Date.Date(2015, 5, 6, time.UTC)
assert.Equal(2015, ts.Year())
assert.Equal(5, ts.Month())
assert.Equal(6, ts.Day())
assert.Equal(time.UTC, ts.Location())
}
func TestDateOn(t *testing.T) {
assert := assert.New(t)
ts := Date.On(Date.Time(5, 4, 3, 2, time.UTC), Date.Date(2016, 6, 7, Date.Eastern()))
assert.Equal(2016, ts.Year())
assert.Equal(6, ts.Month())
assert.Equal(7, ts.Day())
assert.Equal(5, ts.Hour())
assert.Equal(4, ts.Minute())
assert.Equal(3, ts.Second())
assert.Equal(2, ts.Nanosecond())
assert.Equal(time.UTC, ts.Location())
}
func TestDateNoonOn(t *testing.T) {
assert := assert.New(t)
noon := Date.NoonOn(time.Date(2016, 04, 03, 02, 01, 0, 0, time.UTC))
assert.Equal(2016, noon.Year())
assert.Equal(4, noon.Month())
assert.Equal(3, noon.Day())
assert.Equal(12, noon.Hour())
assert.Equal(0, noon.Minute())
assert.Equal(time.UTC, noon.Location())
}
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func TestDateBefore(t *testing.T) {
assert := assert.New(t)
assert.True(Date.Before(parse("2015-07-02"), parse("2016-07-01")))
assert.True(Date.Before(parse("2016-06-01"), parse("2016-07-01")))
assert.True(Date.Before(parse("2016-07-01"), parse("2016-07-02")))
assert.False(Date.Before(parse("2016-07-01"), parse("2016-07-01")))
assert.False(Date.Before(parse("2016-07-03"), parse("2016-07-01")))
assert.False(Date.Before(parse("2016-08-03"), parse("2016-07-01")))
assert.False(Date.Before(parse("2017-08-03"), parse("2016-07-01")))
}
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func TestDateBeforeHandlesTimezones(t *testing.T) {
assert := assert.New(t)
tuesdayUTC := time.Date(2016, 8, 02, 22, 00, 0, 0, time.UTC)
mondayUTC := time.Date(2016, 8, 01, 1, 00, 0, 0, time.UTC)
sundayEST := time.Date(2016, 7, 31, 22, 00, 0, 0, Date.Eastern())
assert.True(Date.Before(sundayEST, tuesdayUTC))
assert.False(Date.Before(sundayEST, mondayUTC))
}
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func TestNextMarketOpen(t *testing.T) {
assert := assert.New(t)
beforeOpen := time.Date(2016, 07, 18, 9, 0, 0, 0, Date.Eastern())
todayOpen := time.Date(2016, 07, 18, 9, 30, 0, 0, Date.Eastern())
afterOpen := time.Date(2016, 07, 18, 9, 31, 0, 0, Date.Eastern())
tomorrowOpen := time.Date(2016, 07, 19, 9, 30, 0, 0, Date.Eastern())
afterFriday := time.Date(2016, 07, 22, 9, 31, 0, 0, Date.Eastern())
mondayOpen := time.Date(2016, 07, 25, 9, 30, 0, 0, Date.Eastern())
weekend := time.Date(2016, 07, 23, 9, 31, 0, 0, Date.Eastern())
assert.True(todayOpen.Equal(Date.NextMarketOpen(beforeOpen, NYSEOpen, Date.IsNYSEHoliday)))
assert.True(tomorrowOpen.Equal(Date.NextMarketOpen(afterOpen, NYSEOpen, Date.IsNYSEHoliday)))
assert.True(mondayOpen.Equal(Date.NextMarketOpen(afterFriday, NYSEOpen, Date.IsNYSEHoliday)))
assert.True(mondayOpen.Equal(Date.NextMarketOpen(weekend, NYSEOpen, Date.IsNYSEHoliday)))
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assert.Equal(Date.Eastern(), todayOpen.Location())
assert.Equal(Date.Eastern(), tomorrowOpen.Location())
assert.Equal(Date.Eastern(), mondayOpen.Location())
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testRegression := time.Date(2016, 07, 18, 16, 0, 0, 0, Date.Eastern())
shouldbe := time.Date(2016, 07, 19, 9, 30, 0, 0, Date.Eastern())
assert.True(shouldbe.Equal(Date.NextMarketOpen(testRegression, NYSEOpen, Date.IsNYSEHoliday)))
}
func TestNextMarketClose(t *testing.T) {
assert := assert.New(t)
beforeClose := time.Date(2016, 07, 18, 15, 0, 0, 0, Date.Eastern())
todayClose := time.Date(2016, 07, 18, 16, 00, 0, 0, Date.Eastern())
afterClose := time.Date(2016, 07, 18, 16, 1, 0, 0, Date.Eastern())
tomorrowClose := time.Date(2016, 07, 19, 16, 00, 0, 0, Date.Eastern())
afterFriday := time.Date(2016, 07, 22, 16, 1, 0, 0, Date.Eastern())
mondayClose := time.Date(2016, 07, 25, 16, 0, 0, 0, Date.Eastern())
weekend := time.Date(2016, 07, 23, 9, 31, 0, 0, Date.Eastern())
assert.True(todayClose.Equal(Date.NextMarketClose(beforeClose, NYSEClose, Date.IsNYSEHoliday)))
assert.True(tomorrowClose.Equal(Date.NextMarketClose(afterClose, NYSEClose, Date.IsNYSEHoliday)))
assert.True(mondayClose.Equal(Date.NextMarketClose(afterFriday, NYSEClose, Date.IsNYSEHoliday)))
assert.True(mondayClose.Equal(Date.NextMarketClose(weekend, NYSEClose, Date.IsNYSEHoliday)))
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assert.Equal(Date.Eastern(), todayClose.Location())
assert.Equal(Date.Eastern(), tomorrowClose.Location())
assert.Equal(Date.Eastern(), mondayClose.Location())
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}
func TestCalculateMarketSecondsBetween(t *testing.T) {
assert := assert.New(t)
start := time.Date(2016, 07, 18, 9, 30, 0, 0, Date.Eastern())
end := time.Date(2016, 07, 22, 16, 00, 0, 0, Date.Eastern())
shouldbe := 5 * 6.5 * 60 * 60
assert.Equal(shouldbe, Date.CalculateMarketSecondsBetween(start, end, NYSEOpen, NYSEClose, Date.IsNYSEHoliday))
}
func TestCalculateMarketSecondsBetween1D(t *testing.T) {
assert := assert.New(t)
start := time.Date(2016, 07, 22, 9, 45, 0, 0, Date.Eastern())
end := time.Date(2016, 07, 22, 15, 45, 0, 0, Date.Eastern())
shouldbe := 6 * 60 * 60
assert.Equal(shouldbe, Date.CalculateMarketSecondsBetween(start, end, NYSEOpen, NYSEClose, Date.IsNYSEHoliday))
}
func TestCalculateMarketSecondsBetweenLTM(t *testing.T) {
assert := assert.New(t)
start := time.Date(2015, 07, 01, 9, 30, 0, 0, Date.Eastern())
end := time.Date(2016, 07, 01, 9, 30, 0, 0, Date.Eastern())
shouldbe := 253 * 6.5 * 60 * 60 //253 full market days since this date last year.
assert.Equal(shouldbe, Date.CalculateMarketSecondsBetween(start, end, NYSEOpen, NYSEClose, Date.IsNYSEHoliday))
}
func TestDateNextHour(t *testing.T) {
assert := assert.New(t)
start := time.Date(2015, 07, 01, 9, 30, 0, 0, Date.Eastern())
next := Date.NextHour(start)
assert.Equal(2015, next.Year())
assert.Equal(07, next.Month())
assert.Equal(01, next.Day())
assert.Equal(10, next.Hour())
assert.Equal(00, next.Minute())
next = Date.NextHour(next)
assert.Equal(11, next.Hour())
next = Date.NextHour(next)
assert.Equal(12, next.Hour())
}
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func TestDateNextDayOfWeek(t *testing.T) {
assert := assert.New(t)
weds := Date.Date(2016, 8, 10, time.UTC)
fri := Date.Date(2016, 8, 12, time.UTC)
sun := Date.Date(2016, 8, 14, time.UTC)
mon := Date.Date(2016, 8, 15, time.UTC)
weds2 := Date.Date(2016, 8, 17, time.UTC)
nextFri := Date.NextDayOfWeek(weds, time.Friday)
nextSunday := Date.NextDayOfWeek(weds, time.Sunday)
nextMonday := Date.NextDayOfWeek(weds, time.Monday)
nextWeds := Date.NextDayOfWeek(weds, time.Wednesday)
assert.Equal(fri.Year(), nextFri.Year())
assert.Equal(fri.Month(), nextFri.Month())
assert.Equal(fri.Day(), nextFri.Day())
assert.Equal(sun.Year(), nextSunday.Year())
assert.Equal(sun.Month(), nextSunday.Month())
assert.Equal(sun.Day(), nextSunday.Day())
assert.Equal(mon.Year(), nextMonday.Year())
assert.Equal(mon.Month(), nextMonday.Month())
assert.Equal(mon.Day(), nextMonday.Day())
assert.Equal(weds2.Year(), nextWeds.Year())
assert.Equal(weds2.Month(), nextWeds.Month())
assert.Equal(weds2.Day(), nextWeds.Day())
assert.Equal(time.UTC, nextFri.Location())
assert.Equal(time.UTC, nextSunday.Location())
assert.Equal(time.UTC, nextMonday.Location())
}
func TestDateIsNYSEHoliday(t *testing.T) {
assert := assert.New(t)
cursor := time.Date(2013, 01, 01, 0, 0, 0, 0, time.UTC)
end := time.Date(2020, 1, 1, 0, 0, 0, 0, time.UTC)
var holidays int
for Date.Before(cursor, end) {
if Date.IsNYSEHoliday(cursor) {
holidays++
}
cursor = cursor.AddDate(0, 0, 1)
}
assert.Equal(holidays, 55)
}