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Fix: Handle Mountain Day Holiday Correctly in Jp #142

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Dec 5, 2024
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29 changes: 21 additions & 8 deletions v2/jp/jp_holidays.go
Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,11 @@
package jp

import (
"github.com/rickar/cal/v2"
"github.com/rickar/cal/v2/aa"
"math"
"time"

"github.com/rickar/cal/v2"
"github.com/rickar/cal/v2/aa"
)

var (
Expand Down Expand Up @@ -141,12 +142,24 @@ var (

// MountainDay represents Mountain Day on 11-August
MountainDay = &cal.Holiday{
Name: "Mountain Day",
Type: cal.ObservancePublic,
Month: time.August,
Day: 11,
Observed: weekendAlt,
Func: cal.CalcDayOfMonth,
Name: "Mountain Day",
Type: cal.ObservancePublic,
Month: time.August,
Day: 11,
Observed: weekendAlt,
Func: func(h *cal.Holiday, year int) time.Time {
switch year {
case 2020:
// Mountain Day is observed on August 10 in 2020
return time.Date(year, time.August, 10, 0, 0, 0, 0, time.Local)
case 2021:
// Mountain Day is observed on August 8 from 2021
return time.Date(year, time.August, 8, 0, 0, 0, 0, time.Local)
default:
// For all other years, Mountain Day is observed on August 11
return time.Date(year, time.August, 11, 0, 0, 0, 0, time.Local)
}
},
StartYear: 2016,
}

Expand Down
9 changes: 6 additions & 3 deletions v2/jp/jp_holidays_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -3,9 +3,10 @@
package jp

import (
"github.com/rickar/cal/v2"
"testing"
"time"

"github.com/rickar/cal/v2"
)

func d(y, m, d int) time.Time {
Expand Down Expand Up @@ -130,9 +131,11 @@ func TestHolidays(t *testing.T) {
{MountainDay, 2017, d(2017, 8, 11), d(2017, 8, 11)},
{MountainDay, 2018, d(2018, 8, 11), d(2018, 8, 11)},
{MountainDay, 2019, d(2019, 8, 11), d(2019, 8, 12)},
{MountainDay, 2020, d(2020, 8, 11), d(2020, 8, 11)},
{MountainDay, 2021, d(2021, 8, 11), d(2021, 8, 11)},
{MountainDay, 2020, d(2020, 8, 10), d(2020, 8, 10)},
{MountainDay, 2021, d(2021, 8, 8), d(2021, 8, 9)},
{MountainDay, 2022, d(2022, 8, 11), d(2022, 8, 11)},
{MountainDay, 2023, d(2023, 8, 11), d(2023, 8, 11)},
{MountainDay, 2024, d(2024, 8, 11), d(2024, 8, 12)},

{RespectForTheAgedDay, 2015, d(2015, 9, 21), d(2015, 9, 21)},
{RespectForTheAgedDay, 2016, d(2016, 9, 19), d(2016, 9, 19)},
Expand Down
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