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173 lines
8 KiB
TypeScript
173 lines
8 KiB
TypeScript
import {dateName, frIsLeap, frJDN, gregorianJDN, jdnFrench, jdnGregorian, jdnLongCount, monthName} from './dates';
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describe('gregorianJDN', () => {
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it('works', () => {
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expect(gregorianJDN(2000, 1, 1)).toBe(2451545);
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expect(gregorianJDN(-4713, 11, 24)).toBe(0);
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expect(gregorianJDN(11917, 9, 18)).toBe(6073915);
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expect(gregorianJDN(-28565, 6, 17)).toBe(-8711925);
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expect(gregorianJDN(-26650, 4, 13)).toBe(-8012550);
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expect(gregorianJDN(17430, 3, 8)).toBe(8087303);
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expect(gregorianJDN(3395, 7, 18)).toBe(2961257);
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expect(gregorianJDN(4579, 3, 11)).toBe(3393575);
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expect(gregorianJDN(-14851, 11, 22)).toBe(-3702831);
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expect(gregorianJDN(8824, 11, 28)).toBe(4944292);
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expect(gregorianJDN(19720, 8, 14)).toBe(8923868);
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expect(gregorianJDN(7504, 7, 22)).toBe(4462042);
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});
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});
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describe('frJDN', () => {
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it('works for sample dates', () => {
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expect(frJDN(1, 1, 1)).toBe(2375840);
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expect(frJDN(8, 2, 18)).toBe(2378444);
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});
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it('works in years starting/ending near midnight', () => {
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expect(frJDN( 111, 1, 1)).toBe(2416017); // equinox 1902-09-23T23:55:19 UT1
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expect(frJDN( 206, 1, 1)).toBe(2450715); // equinox 1997-09-22T23:55:46 UT1
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expect(frJDN(2490, 1, 1)).toBe(3284926); // equinox 4281-09-20T23:50:38 UT1
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});
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});
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describe('frIsLeap', () => {
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it('works for sample dates', () => {
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expect(frIsLeap(1)).toBeFalsy();
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expect(frIsLeap(8)).toBeFalsy();
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expect(frIsLeap(3)).toBeTruthy();
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expect(frIsLeap(7)).toBeTruthy();
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expect(frIsLeap(11)).toBeTruthy();
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});
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it('works in years starting/ending near midnight', () => {
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expect(frIsLeap(110)).toBeTruthy();
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expect(frIsLeap(205)).toBeTruthy();
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expect(frIsLeap(2489)).toBeFalsy();
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expect(frIsLeap(111)).toBeFalsy();
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expect(frIsLeap(206)).toBeFalsy();
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expect(frIsLeap(2490)).toBeTruthy();
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});
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});
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describe('jdnFrench', () => {
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it('works for sample dates', () => {
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expect(jdnFrench(2375840)).toEqual({year: 1, month: 1, day: 1});
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expect(jdnFrench(2378444)).toEqual({year: 8, month: 2, day: 18});
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});
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it('works in years starting/ending near midnight', () => {
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expect(jdnFrench(2416017)).toEqual({year: 111, month: 1, day: 1});
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expect(jdnFrench(2450715)).toEqual({year: 206, month: 1, day: 1});
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expect(jdnFrench(3284926)).toEqual({year: 2490, month: 1, day: 1});
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expect(jdnFrench(2416016)).toEqual({year: 110, month: 13, day: 6});
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expect(jdnFrench(2450714)).toEqual({year: 205, month: 13, day: 6});
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expect(jdnFrench(3284925)).toEqual({year: 2489, month: 13, day: 5});
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});
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});
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describe('jdnGregorian', () => {
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it('works', () => {
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expect(jdnGregorian(0)).toEqual(new Date(-4713, 10, 24));
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expect(jdnGregorian(2299160)).toEqual(new Date(1582, 9, 14));
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expect(jdnGregorian(2299161)).toEqual(new Date(1582, 9, 15));
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expect(jdnGregorian(2361221)).toEqual(new Date(1752, 8, 13));
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expect(jdnGregorian(2361222)).toEqual(new Date(1752, 8, 14));
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expect(jdnGregorian(2451545)).toEqual(new Date(2000, 0, 1));
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expect(jdnGregorian(-8512316)).toEqual(new Date(-28019, 11, 20));
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expect(jdnGregorian(-8534852)).toEqual(new Date(-28080, 3, 8));
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expect(jdnGregorian(2653462)).toEqual(new Date(2552, 9, 30));
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expect(jdnGregorian(3271156)).toEqual(new Date(4244, 0, 8));
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expect(jdnGregorian(-666477)).toEqual(new Date(-6537, 1, 23));
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expect(jdnGregorian(2397854)).toEqual(new Date(1852, 11, 31));
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expect(jdnGregorian(-1211235)).toEqual(new Date(-8029, 7, 26));
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expect(jdnGregorian(-91680)).toEqual(new Date(-4964, 10, 20));
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expect(jdnGregorian(-5605876)).toEqual(new Date(-20061, 6, 14));
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expect(jdnGregorian(-295121)).toEqual(new Date(-5521, 10, 19));
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});
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});
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describe('jdnLongCount', () => {
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it('works for normal dates', () => {
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expect(jdnLongCount(2456282)).toEqual('12.19.19.17.19');
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expect(jdnLongCount(2459413)).toEqual('13.0.8.12.10');
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expect(jdnLongCount(1708616)).toEqual('7.16.3.2.13');
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expect(jdnLongCount(1787816)).toEqual('8.7.3.2.13');
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expect(jdnLongCount(1709981)).toEqual('7.16.6.16.18');
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expect(jdnLongCount(1725275)).toEqual('7.18.9.7.12');
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expect(jdnLongCount(1727095)).toEqual('7.18.14.8.12');
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expect(jdnLongCount(1731775)).toEqual('7.19.7.8.12');
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expect(jdnLongCount(1734635)).toEqual('7.19.15.7.12');
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expect(jdnLongCount(1751618)).toEqual('8.2.2.10.15');
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expect(jdnLongCount(1758818)).toEqual('8.3.2.10.15');
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expect(jdnLongCount(1767234)).toEqual('8.4.5.17.11');
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expect(jdnLongCount(1773428)).toEqual('8.5.3.3.5');
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expect(jdnLongCount(1778230)).toEqual('8.5.16.9.7');
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expect(jdnLongCount(1780300)).toEqual('8.6.2.4.17');
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expect(jdnLongCount(2283483)).toEqual('11.16.0.0.0');
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expect(jdnLongCount(584283)).toEqual('0.0.0.0.0');
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expect(jdnLongCount(728283)).toEqual('1.0.0.0.0');
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expect(jdnLongCount(872283)).toEqual('2.0.0.0.0');
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expect(jdnLongCount(1016283)).toEqual('3.0.0.0.0');
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expect(jdnLongCount(1160283)).toEqual('4.0.0.0.0');
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expect(jdnLongCount(1304283)).toEqual('5.0.0.0.0');
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expect(jdnLongCount(1448283)).toEqual('6.0.0.0.0');
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expect(jdnLongCount(1592283)).toEqual('7.0.0.0.0');
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expect(jdnLongCount(1736283)).toEqual('8.0.0.0.0');
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expect(jdnLongCount(1880283)).toEqual('9.0.0.0.0');
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expect(jdnLongCount(2024283)).toEqual('10.0.0.0.0');
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expect(jdnLongCount(2168283)).toEqual('11.0.0.0.0');
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expect(jdnLongCount(2312283)).toEqual('12.0.0.0.0');
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expect(jdnLongCount(2456283)).toEqual('13.0.0.0.0');
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expect(jdnLongCount(2600283)).toEqual('14.0.0.0.0');
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expect(jdnLongCount(2744283)).toEqual('15.0.0.0.0');
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expect(jdnLongCount(2888283)).toEqual('16.0.0.0.0');
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expect(jdnLongCount(3032283)).toEqual('17.0.0.0.0');
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expect(jdnLongCount(3176283)).toEqual('18.0.0.0.0');
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expect(jdnLongCount(3320283)).toEqual('19.0.0.0.0');
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expect(jdnLongCount(3464283)).toEqual('1.0.0.0.0.0');
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expect(jdnLongCount(1941383)).toEqual('9.8.9.13.0');
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});
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it('works for insane dates in the future', () => {
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expect(jdnLongCount(591279564516)).toEqual('1.5.13.5.5.4.0.11.13.13');
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expect(jdnLongCount(570988471138)).toEqual('1.4.15.12.19.13.13.3.8.15');
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expect(jdnLongCount(166410754861)).toEqual('7.4.9.1.6.3.13.14.18');
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expect(jdnLongCount(176632006419)).toEqual('7.13.6.10.7.1.19.4.16');
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expect(jdnLongCount(652557304645)).toEqual('1.8.6.9.2.3.17.16.10.2');
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expect(jdnLongCount(140305417242)).toEqual('6.1.15.16.19.2.7.1.19');
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expect(jdnLongCount(805888002058)).toEqual('1.14.19.11.2.0.8.0.8.15');
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expect(jdnLongCount(176433890202)).toEqual('7.13.3.1.11.5.16.7.19');
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expect(jdnLongCount(331888546361)).toEqual('14.8.1.18.17.10.5.13.18');
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expect(jdnLongCount(657363764536)).toEqual('1.8.10.12.11.2.1.14.0.13');
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});
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it('returns null for dates before inception of calendar', () => {
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expect(jdnLongCount(0)).toBeNull();
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expect(jdnLongCount(584282)).toBeNull();
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});
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})
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describe('monthName', () => {
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it('works', () => {
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expect(monthName(1)).toBe('Vendémiaire');
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expect(monthName(12)).toBe('Fructidor');
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expect(monthName(13)).toBe('Jours Complémentaires');
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});
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});
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describe('dateName', () => {
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it('works', () => {
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expect(dateName(1, 1)).toBe('1 Vendémiaire');
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expect(dateName(2, 18)).toBe('18 Brumaire');
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expect(dateName(3, 11)).toBe('11 Frimaire');
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expect(dateName(8, 16)).toBe('16 Floréal');
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expect(dateName(12, 30)).toBe('30 Fructidor');
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expect(dateName(13, 1)).toBe('La Fête de la Vertu');
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expect(dateName(13, 6)).toBe('La Fête de la Révolution');
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});
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it('returns null for non-existent complimentary days', () => {
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expect(dateName(13, 7)).toBeNull();
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});
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});
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