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Merge pull request #130 from rubda/add-icelandic-holidays
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feat: add icelandic holidays
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rickar committed Jul 1, 2024
2 parents b70653d + c4db7a4 commit d7ae04e
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103 changes: 103 additions & 0 deletions v2/is/is_holidays.go
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package is

import (
"time"

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

var (
// Nyarsdagur represents New Year's Day on 1-Jan
Nyarsdagur = aa.NewYear.Clone(&cal.Holiday{Name: "Nýársdagur", Type: cal.ObservancePublic})

// Skirdagur represents Maundy Thursday on the Thursday before Easter
Skirdagur = aa.MaundyThursday.Clone(&cal.Holiday{Name: "Skírdagur", Type: cal.ObservancePublic})

// Langifostudagur represents Good Friday on the Friday before Easter
Langifostudagur = aa.GoodFriday.Clone(&cal.Holiday{Name: "Föstudagurinn langi", Type: cal.ObservancePublic})

// Annaripaskum represents Easter Monday on the day after Easter
Annaripaskum = aa.EasterMonday.Clone(&cal.Holiday{Name: "Annar í páskum", Type: cal.ObservancePublic})

// Sumardagurinn represents the First Day of Summer on the first Thursday after 18-Apr
Sumardagurinn = &cal.Holiday{
Name: "Sumardagurinn fyrsti",
Type: cal.ObservancePublic,
Month: time.April,
Day: 19,
Offset: 1,
Weekday: time.Thursday,
Func: cal.CalcWeekdayFrom,
}

// Verkalydsdagurinn represents Labour Day on 1-May
Verkalydsdagurinn = aa.WorkersDay.Clone(&cal.Holiday{Name: "Verkalýðsdagurinn", Type: cal.ObservancePublic})

// Uppstigningardagur represents Ascension Day on the 39th day after Easter
Uppstigningardagur = aa.AscensionDay.Clone(&cal.Holiday{Name: "Uppstigningardagur", Type: cal.ObservancePublic})

// Annarihvit represents Whit Monday on the day after Pentecost
Annarihvit = aa.PentecostMonday.Clone(&cal.Holiday{Name: "Annar í hvítasunnu", Type: cal.ObservancePublic})

// Thjodhatid represents Independence Day on 17-Jun
Thjodhatid = &cal.Holiday{
Name: "Þjóðhátíðardagurinn",
Type: cal.ObservancePublic,
Month: time.June,
Day: 17,
Func: cal.CalcDayOfMonth,
}

// Verslunarmannahelgi represents Commerce Day on the first Monday in August
Verslunarmannahelgi = &cal.Holiday{
Name: "Frídagur verslunarmanna",
Type: cal.ObservancePublic,
Month: time.August,
Offset: 1,
Weekday: time.Monday,
Func: cal.CalcWeekdayOffset,
}

// Adfangadagur represents Christmas Eve on 24-Dec
Adfangadagur = &cal.Holiday{
Name: "Aðfangadagur",
Type: cal.ObservanceOther,
Month: time.December,
Day: 24,
Func: cal.CalcDayOfMonth,
}

// Joladagur represents Christmas Day on 25-Dec
Joladagur = aa.ChristmasDay.Clone(&cal.Holiday{Name: "Jóladagur", Type: cal.ObservancePublic})

// Annarijolum represents the second day of Christmas on 26-Dec
Annarijolum = aa.ChristmasDay2.Clone(&cal.Holiday{Name: "Annar í jólum", Type: cal.ObservancePublic})

// Gamarsdagur represents New Year's Eve on 31-Dec
Gamarsdagur = &cal.Holiday{
Name: "Gamlársdagur",
Type: cal.ObservanceOther,
Month: time.December,
Day: 31,
Func: cal.CalcDayOfMonth,
}

// Holidays provides a list of the standard national holidays
Holidays = []*cal.Holiday{
Nyarsdagur,
Skirdagur,
Langifostudagur,
Annaripaskum,
Sumardagurinn,
Verkalydsdagurinn,
Uppstigningardagur,
Annarihvit,
Thjodhatid,
Verslunarmannahelgi,
Adfangadagur,
Joladagur,
Annarijolum,
Gamarsdagur,
}
)
172 changes: 172 additions & 0 deletions v2/is/is_holidays_test.go
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// Package is provides holiday definitions for Iceland.
package is

import (
"testing"
"time"

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

func d(y, m, d int) time.Time {
return time.Date(y, time.Month(m), d, 0, 0, 0, 0, cal.DefaultLoc)
}

func TestHolidays(t *testing.T) {
tests := []struct {
h *cal.Holiday
y int
wantAct time.Time
wantObs time.Time
}{
{Nyarsdagur, 2015, d(2015, 1, 1), d(2015, 1, 1)},
{Nyarsdagur, 2016, d(2016, 1, 1), d(2016, 1, 1)},
{Nyarsdagur, 2017, d(2017, 1, 1), d(2017, 1, 1)},
{Nyarsdagur, 2018, d(2018, 1, 1), d(2018, 1, 1)},
{Nyarsdagur, 2019, d(2019, 1, 1), d(2019, 1, 1)},
{Nyarsdagur, 2020, d(2020, 1, 1), d(2020, 1, 1)},
{Nyarsdagur, 2021, d(2021, 1, 1), d(2021, 1, 1)},
{Nyarsdagur, 2022, d(2022, 1, 1), d(2022, 1, 1)},
{Nyarsdagur, 2023, d(2023, 1, 1), d(2023, 1, 1)},

{Skirdagur, 2015, d(2015, 4, 2), d(2015, 4, 2)},
{Skirdagur, 2016, d(2016, 3, 24), d(2016, 3, 24)},
{Skirdagur, 2017, d(2017, 4, 13), d(2017, 4, 13)},
{Skirdagur, 2018, d(2018, 3, 29), d(2018, 3, 29)},
{Skirdagur, 2019, d(2019, 4, 18), d(2019, 4, 18)},
{Skirdagur, 2020, d(2020, 4, 9), d(2020, 4, 9)},
{Skirdagur, 2021, d(2021, 4, 1), d(2021, 4, 1)},
{Skirdagur, 2022, d(2022, 4, 14), d(2022, 4, 14)},
{Skirdagur, 2023, d(2023, 4, 6), d(2023, 4, 6)},

{Langifostudagur, 2015, d(2015, 4, 3), d(2015, 4, 3)},
{Langifostudagur, 2016, d(2016, 3, 25), d(2016, 3, 25)},
{Langifostudagur, 2017, d(2017, 4, 14), d(2017, 4, 14)},
{Langifostudagur, 2018, d(2018, 3, 30), d(2018, 3, 30)},
{Langifostudagur, 2019, d(2019, 4, 19), d(2019, 4, 19)},
{Langifostudagur, 2020, d(2020, 4, 10), d(2020, 4, 10)},
{Langifostudagur, 2021, d(2021, 4, 2), d(2021, 4, 2)},
{Langifostudagur, 2022, d(2022, 4, 15), d(2022, 4, 15)},
{Langifostudagur, 2023, d(2023, 4, 7), d(2023, 4, 7)},

{Annaripaskum, 2015, d(2015, 4, 6), d(2015, 4, 6)},
{Annaripaskum, 2016, d(2016, 3, 28), d(2016, 3, 28)},
{Annaripaskum, 2017, d(2017, 4, 17), d(2017, 4, 17)},
{Annaripaskum, 2018, d(2018, 4, 2), d(2018, 4, 2)},
{Annaripaskum, 2019, d(2019, 4, 22), d(2019, 4, 22)},
{Annaripaskum, 2020, d(2020, 4, 13), d(2020, 4, 13)},
{Annaripaskum, 2021, d(2021, 4, 5), d(2021, 4, 5)},
{Annaripaskum, 2022, d(2022, 4, 18), d(2022, 4, 18)},
{Annaripaskum, 2023, d(2023, 4, 10), d(2023, 4, 10)},

{Sumardagurinn, 2015, d(2015, 4, 23), d(2015, 4, 23)},
{Sumardagurinn, 2016, d(2016, 4, 21), d(2016, 4, 21)},
{Sumardagurinn, 2017, d(2017, 4, 20), d(2017, 4, 20)},
{Sumardagurinn, 2018, d(2018, 4, 19), d(2018, 4, 19)},
{Sumardagurinn, 2019, d(2019, 4, 25), d(2019, 4, 25)},
{Sumardagurinn, 2020, d(2020, 4, 23), d(2020, 4, 23)},
{Sumardagurinn, 2021, d(2021, 4, 22), d(2021, 4, 22)},
{Sumardagurinn, 2022, d(2022, 4, 21), d(2022, 4, 21)},
{Sumardagurinn, 2023, d(2023, 4, 20), d(2023, 4, 20)},

{Verkalydsdagurinn, 2015, d(2015, 5, 1), d(2015, 5, 1)},
{Verkalydsdagurinn, 2016, d(2016, 5, 1), d(2016, 5, 1)},
{Verkalydsdagurinn, 2017, d(2017, 5, 1), d(2017, 5, 1)},
{Verkalydsdagurinn, 2018, d(2018, 5, 1), d(2018, 5, 1)},
{Verkalydsdagurinn, 2019, d(2019, 5, 1), d(2019, 5, 1)},
{Verkalydsdagurinn, 2020, d(2020, 5, 1), d(2020, 5, 1)},
{Verkalydsdagurinn, 2021, d(2021, 5, 1), d(2021, 5, 1)},
{Verkalydsdagurinn, 2022, d(2022, 5, 1), d(2022, 5, 1)},
{Verkalydsdagurinn, 2023, d(2023, 5, 1), d(2023, 5, 1)},

{Uppstigningardagur, 2015, d(2015, 5, 14), d(2015, 5, 14)},
{Uppstigningardagur, 2016, d(2016, 5, 5), d(2016, 5, 5)},
{Uppstigningardagur, 2017, d(2017, 5, 25), d(2017, 5, 25)},
{Uppstigningardagur, 2018, d(2018, 5, 10), d(2018, 5, 10)},
{Uppstigningardagur, 2019, d(2019, 5, 30), d(2019, 5, 30)},
{Uppstigningardagur, 2020, d(2020, 5, 21), d(2020, 5, 21)},
{Uppstigningardagur, 2021, d(2021, 5, 13), d(2021, 5, 13)},
{Uppstigningardagur, 2022, d(2022, 5, 26), d(2022, 5, 26)},
{Uppstigningardagur, 2023, d(2023, 5, 18), d(2023, 5, 18)},

{Annarihvit, 2015, d(2015, 5, 25), d(2015, 5, 25)},
{Annarihvit, 2016, d(2016, 5, 16), d(2016, 5, 16)},
{Annarihvit, 2017, d(2017, 6, 5), d(2017, 6, 5)},
{Annarihvit, 2018, d(2018, 5, 21), d(2018, 5, 21)},
{Annarihvit, 2019, d(2019, 6, 10), d(2019, 6, 10)},
{Annarihvit, 2020, d(2020, 6, 1), d(2020, 6, 1)},
{Annarihvit, 2021, d(2021, 5, 24), d(2021, 5, 24)},
{Annarihvit, 2022, d(2022, 6, 6), d(2022, 6, 6)},
{Annarihvit, 2023, d(2023, 5, 29), d(2023, 5, 29)},

{Thjodhatid, 2015, d(2015, 6, 17), d(2015, 6, 17)},
{Thjodhatid, 2016, d(2016, 6, 17), d(2016, 6, 17)},
{Thjodhatid, 2017, d(2017, 6, 17), d(2017, 6, 17)},
{Thjodhatid, 2018, d(2018, 6, 17), d(2018, 6, 17)},
{Thjodhatid, 2019, d(2019, 6, 17), d(2019, 6, 17)},
{Thjodhatid, 2020, d(2020, 6, 17), d(2020, 6, 17)},
{Thjodhatid, 2021, d(2021, 6, 17), d(2021, 6, 17)},
{Thjodhatid, 2022, d(2022, 6, 17), d(2022, 6, 17)},
{Thjodhatid, 2023, d(2023, 6, 17), d(2023, 6, 17)},

{Verslunarmannahelgi, 2015, d(2015, 8, 3), d(2015, 8, 3)},
{Verslunarmannahelgi, 2016, d(2016, 8, 1), d(2016, 8, 1)},
{Verslunarmannahelgi, 2017, d(2017, 8, 7), d(2017, 8, 7)},
{Verslunarmannahelgi, 2018, d(2018, 8, 6), d(2018, 8, 6)},
{Verslunarmannahelgi, 2019, d(2019, 8, 5), d(2019, 8, 5)},
{Verslunarmannahelgi, 2020, d(2020, 8, 3), d(2020, 8, 3)},
{Verslunarmannahelgi, 2021, d(2021, 8, 2), d(2021, 8, 2)},
{Verslunarmannahelgi, 2022, d(2022, 8, 1), d(2022, 8, 1)},
{Verslunarmannahelgi, 2023, d(2023, 8, 7), d(2023, 8, 7)},

{Adfangadagur, 2015, d(2015, 12, 24), d(2015, 12, 24)},
{Adfangadagur, 2016, d(2016, 12, 24), d(2016, 12, 24)},
{Adfangadagur, 2017, d(2017, 12, 24), d(2017, 12, 24)},
{Adfangadagur, 2018, d(2018, 12, 24), d(2018, 12, 24)},
{Adfangadagur, 2019, d(2019, 12, 24), d(2019, 12, 24)},
{Adfangadagur, 2020, d(2020, 12, 24), d(2020, 12, 24)},
{Adfangadagur, 2021, d(2021, 12, 24), d(2021, 12, 24)},
{Adfangadagur, 2022, d(2022, 12, 24), d(2022, 12, 24)},
{Adfangadagur, 2023, d(2023, 12, 24), d(2023, 12, 24)},

{Joladagur, 2015, d(2015, 12, 25), d(2015, 12, 25)},
{Joladagur, 2016, d(2016, 12, 25), d(2016, 12, 25)},
{Joladagur, 2017, d(2017, 12, 25), d(2017, 12, 25)},
{Joladagur, 2018, d(2018, 12, 25), d(2018, 12, 25)},
{Joladagur, 2019, d(2019, 12, 25), d(2019, 12, 25)},
{Joladagur, 2020, d(2020, 12, 25), d(2020, 12, 25)},
{Joladagur, 2021, d(2021, 12, 25), d(2021, 12, 25)},
{Joladagur, 2022, d(2022, 12, 25), d(2022, 12, 25)},
{Joladagur, 2023, d(2023, 12, 25), d(2023, 12, 25)},

{Annarijolum, 2015, d(2015, 12, 26), d(2015, 12, 26)},
{Annarijolum, 2016, d(2016, 12, 26), d(2016, 12, 26)},
{Annarijolum, 2017, d(2017, 12, 26), d(2017, 12, 26)},
{Annarijolum, 2018, d(2018, 12, 26), d(2018, 12, 26)},
{Annarijolum, 2019, d(2019, 12, 26), d(2019, 12, 26)},
{Annarijolum, 2020, d(2020, 12, 26), d(2020, 12, 26)},
{Annarijolum, 2021, d(2021, 12, 26), d(2021, 12, 26)},
{Annarijolum, 2022, d(2022, 12, 26), d(2022, 12, 26)},
{Annarijolum, 2023, d(2023, 12, 26), d(2023, 12, 26)},

{Gamarsdagur, 2015, d(2015, 12, 31), d(2015, 12, 31)},
{Gamarsdagur, 2016, d(2016, 12, 31), d(2016, 12, 31)},
{Gamarsdagur, 2017, d(2017, 12, 31), d(2017, 12, 31)},
{Gamarsdagur, 2018, d(2018, 12, 31), d(2018, 12, 31)},
{Gamarsdagur, 2019, d(2019, 12, 31), d(2019, 12, 31)},
{Gamarsdagur, 2020, d(2020, 12, 31), d(2020, 12, 31)},
{Gamarsdagur, 2021, d(2021, 12, 31), d(2021, 12, 31)},
{Gamarsdagur, 2022, d(2022, 12, 31), d(2022, 12, 31)},
{Gamarsdagur, 2023, d(2023, 12, 31), d(2023, 12, 31)},
}

for _, test := range tests {
gotAct, gotObs := test.h.Calc(test.y)
if !gotAct.Equal(test.wantAct) {
t.Errorf("%s %d: got actual: %s, want: %s", test.h.Name, test.y, gotAct.String(), test.wantAct.String())
}
if !gotObs.Equal(test.wantObs) {
t.Errorf("%s %d: got observed: %s, want: %s", test.h.Name, test.y, gotObs.String(), test.wantObs.String())
}
}
}

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