Add Dutch (official) holidays (#7)

kylekatarnls · Oct 20, 2018 · 3454833 · 3454833
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commit 3454833
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diff --git a/src/Cmixin/Holidays/nl-national.php b/src/Cmixin/Holidays/nl-national.php
@@ -0,0 +1,52 @@
+<?php
+
+return array(
+    '01/01', // Nieuwjaarsdag
+    function ($year) { // Paaszondag
+        $days = easter_days($year);
+        $date = new DateTime("$year-03-21 +$days days");
+
+        return $date->format('d/m');
+    },
+    function ($year) { // Paasmaandag
+        $days = easter_days($year) + 1;
+        $date = new DateTime("$year-03-21 +$days days");
+
+        return $date->format('d/m');
+    },
+    function ($year) { // Koningsdag
+        $date = new DateTime("$year-04-27");
+        if ($date->format('w') === '0') {
+            $date->sub(new DateInterval('P1D'));
+        }
+
+        return $date->format('d/m');
+    },
+    function ($year) { // Bevrijdingsdag
+        if ($year % 5 === 0) {
+            $date = new DateTime("$year-05-05");
+
+            return $date->format('d/m');
+        }
+    },
+    function ($year) { // Hemelvaart
+        $days = easter_days($year) + 39;
+        $date = new DateTime("$year-03-21 +$days days");
+
+        return $date->format('d/m');
+    },
+    function ($year) { // Pinksterzondag
+        $days = easter_days($year) + 49;
+        $date = new DateTime("$year-03-21 +$days days");
+
+        return $date->format('d/m');
+    },
+    function ($year) { // Pinkstermaandag
+        $days = easter_days($year) + 50;
+        $date = new DateTime("$year-03-21 +$days days");
+
+        return $date->format('d/m');
+    },
+    '25/12', // Eerste Kerstdag
+    '26/12', // Tweede Kerstdag
+);
diff --git a/tests/Cmixin/Holidays/NlTest.php b/tests/Cmixin/Holidays/NlTest.php
@@ -0,0 +1,116 @@
+<?php
+/**
+ * Author: Herman Slatman
+ * Date: 20/10/2018
+ * Time: 00:11.
+ */
+
+namespace Tests\Cmixin\Holidays;
+
+use Cmixin\BusinessDay;
+use PHPUnit\Framework\TestCase;
+
+class NlTest extends TestCase
+{
+    const CARBON_CLASS = 'Carbon\Carbon';
+
+    protected function setUp()
+    {
+        BusinessDay::enable(static::CARBON_CLASS);
+        $carbon = static::CARBON_CLASS;
+        $carbon::resetHolidays();
+    }
+
+    public function testHolidaysForRandomYear()
+    {
+        $carbon = static::CARBON_CLASS;
+        $carbon::setHolidaysRegion('nl-national');
+        $holidays = include __DIR__.'/../../../src/Cmixin/Holidays/nl-national.php';
+
+        $randomYear = rand(1991, 2028);
+        $randomHolidays = array();
+        foreach ($holidays as $holiday) {
+            if (is_callable($holiday)) {
+                $randomHolidays[] = $holiday($randomYear);
+            } elseif (is_string($holiday)) {
+                $randomHolidays[] = $holiday;
+            }
+        }
+
+        $date = $carbon::parse("$randomYear-01-01");
+        while ($date->format('Y') == $randomYear) {
+            if (in_array($date->format('d/m'), $randomHolidays)) {
+                self::assertTrue($date->isHoliday(), sprintf('Date %s should be holiday!', $date->format('Y-m-d')));
+            } else {
+                self::assertFalse($date->isHoliday(), sprintf('Date %s should not be holiday!', $date->format('Y-m-d')));
+            }
+
+            $date->modify('+1 day');
+        }
+    }
+
+    public function testHolidaysSpecificDates()
+    {
+        $carbon = static::CARBON_CLASS;
+        $carbon::setHolidaysRegion('nl-national');
+
+        self::assertTrue($carbon::parse('2000-01-01 00:00:00')->isHoliday());
+        self::assertTrue($carbon::parse('2018-04-27')->isHoliday());
+        self::assertFalse($carbon::parse('2018-04-26')->isHoliday());
+        self::assertTrue($carbon::parse('2018-04-01')->isHoliday());
+        self::assertTrue($carbon::parse('2018-04-02')->isHoliday());
+        self::assertFalse($carbon::parse('2018-05-05')->isHoliday()); // Liberation Day; only once every 5 years
+        self::assertTrue($carbon::parse('2020-05-05')->isHoliday());
+        self::assertTrue($carbon::parse('2018-05-10')->isHoliday());
+        self::assertTrue($carbon::parse('2018-05-20')->isHoliday());
+        self::assertTrue($carbon::parse('2018-05-21')->isHoliday());
+        self::assertTrue($carbon::parse('2000-12-25 00:00:00')->isHoliday());
+        self::assertTrue($carbon::parse('2000-12-26 00:00:00')->isHoliday());
+
+        self::assertTrue($carbon::parse('2019-04-21')->isHoliday());
+        self::assertTrue($carbon::parse('2019-04-22')->isHoliday());
+        self::assertTrue($carbon::parse('2020-04-12')->isHoliday());
+        self::assertTrue($carbon::parse('2020-04-13')->isHoliday());
+        self::assertTrue($carbon::parse('2021-04-04')->isHoliday());
+        self::assertTrue($carbon::parse('2021-04-05')->isHoliday());
+        self::assertTrue($carbon::parse('2022-04-17')->isHoliday());
+        self::assertTrue($carbon::parse('2022-04-18')->isHoliday());
+        self::assertTrue($carbon::parse('2023-04-09')->isHoliday());
+        self::assertTrue($carbon::parse('2023-04-10')->isHoliday());
+        self::assertTrue($carbon::parse('2024-03-31')->isHoliday());
+        self::assertTrue($carbon::parse('2024-04-01')->isHoliday());
+        self::assertTrue($carbon::parse('2025-04-20')->isHoliday());
+        self::assertTrue($carbon::parse('2025-04-21')->isHoliday());
+        self::assertTrue($carbon::parse('2026-04-05')->isHoliday());
+        self::assertTrue($carbon::parse('2026-04-06')->isHoliday());
+        self::assertTrue($carbon::parse('2027-03-28')->isHoliday());
+        self::assertTrue($carbon::parse('2027-03-29')->isHoliday());
+        self::assertTrue($carbon::parse('2028-04-16')->isHoliday());
+        self::assertTrue($carbon::parse('2028-04-17')->isHoliday());
+        self::assertTrue($carbon::parse('2029-04-01')->isHoliday());
+        self::assertTrue($carbon::parse('2029-04-02')->isHoliday());
+
+        self::assertTrue($carbon::parse('2019-01-01 00:00:00')->isHoliday());
+        self::assertTrue($carbon::parse('2019-04-21')->isHoliday());
+        self::assertTrue($carbon::parse('2019-04-22')->isHoliday());
+        self::assertTrue($carbon::parse('2019-04-27')->isHoliday());
+        self::assertTrue($carbon::parse('2019-05-30')->isHoliday());
+        self::assertTrue($carbon::parse('2019-06-09')->isHoliday());
+        self::assertTrue($carbon::parse('2019-06-10')->isHoliday());
+        self::assertTrue($carbon::parse('2019-12-25 00:00:00')->isHoliday());
+        self::assertTrue($carbon::parse('2019-12-26 00:00:00')->isHoliday());
+
+        self::assertTrue($carbon::parse('2020-01-01 00:00:00')->isHoliday());
+        self::assertTrue($carbon::parse('2020-04-12')->isHoliday());
+        self::assertTrue($carbon::parse('2020-04-13')->isHoliday());
+        self::assertTrue($carbon::parse('2020-04-27')->isHoliday());
+        self::assertTrue($carbon::parse('2020-05-05')->isHoliday());
+        self::assertTrue($carbon::parse('2020-05-21')->isHoliday());
+        self::assertTrue($carbon::parse('2020-05-31')->isHoliday());
+        self::assertTrue($carbon::parse('2020-06-01')->isHoliday());
+        self::assertTrue($carbon::parse('2020-12-25 00:00:00')->isHoliday());
+        self::assertTrue($carbon::parse('2020-12-26 00:00:00')->isHoliday());
+
+        self::assertTrue($carbon::parse('2025-04-26')->isHoliday()); // Kingsday on Sunday :-> Saturday
+    }
+}