2025-06-22 04:28:56 -04:00
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import {formatHaab, formatTzolkin, jdnTzolkin, TzolkinName, tzolkinName} from './mayan';
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2025-06-17 00:35:04 -04:00
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describe('tzolkinName', () => {
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2025-06-25 20:35:23 -04:00
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it('should return correct name for IMIX', () => {
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expect(tzolkinName(TzolkinName.IMIX)).toBe('Imix');
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});
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2025-06-17 00:35:04 -04:00
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2025-06-25 20:35:23 -04:00
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it('should return correct name for IK', () => {
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expect(tzolkinName(TzolkinName.IK)).toBe('Ikʼ');
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});
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2025-06-25 20:35:23 -04:00
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it('should return correct name for AJAW', () => {
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expect(tzolkinName(TzolkinName.AJAW)).toBe('Ajaw');
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});
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2025-06-17 00:35:04 -04:00
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});
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describe('formatTzolkin', () => {
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2025-06-25 20:35:23 -04:00
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it('should format tzolkin with number 1 and IMIX', () => {
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expect(formatTzolkin({number: 1, name: TzolkinName.IMIX})).toBe('1 Imix');
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});
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2025-06-17 00:35:04 -04:00
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2025-06-25 20:35:23 -04:00
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it('should format tzolkin with number 13 and AJAW', () => {
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expect(formatTzolkin({number: 13, name: TzolkinName.AJAW})).toBe('13 Ajaw');
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});
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2025-06-17 00:35:04 -04:00
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2025-06-25 20:35:23 -04:00
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it('should format tzolkin with number 7 and KABAN', () => {
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expect(formatTzolkin({number: 7, name: TzolkinName.KABAN})).toBe('7 Kabʼan');
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});
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2025-06-17 00:35:04 -04:00
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});
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2025-06-19 01:09:37 -04:00
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describe('jdnTzolkin', () => {
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2025-06-25 20:35:23 -04:00
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it('converts sample consecutive dates in June 2025 correctly', () => {
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expect(jdnTzolkin(2460828)).toEqual({number: 12, name: TzolkinName.CHIKCHAN});
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expect(jdnTzolkin(2460829)).toEqual({number: 13, name: TzolkinName.KIMI});
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expect(jdnTzolkin(2460830)).toEqual({number: 1, name: TzolkinName.MANIK});
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expect(jdnTzolkin(2460831)).toEqual({number: 2, name: TzolkinName.LAMAT});
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expect(jdnTzolkin(2460832)).toEqual({number: 3, name: TzolkinName.MULUK});
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expect(jdnTzolkin(2460833)).toEqual({number: 4, name: TzolkinName.OK});
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expect(jdnTzolkin(2460834)).toEqual({number: 5, name: TzolkinName.CHUWEN});
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expect(jdnTzolkin(2460835)).toEqual({number: 6, name: TzolkinName.EB});
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expect(jdnTzolkin(2460836)).toEqual({number: 7, name: TzolkinName.BEN});
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expect(jdnTzolkin(2460837)).toEqual({number: 8, name: TzolkinName.IX});
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expect(jdnTzolkin(2460838)).toEqual({number: 9, name: TzolkinName.MEN});
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expect(jdnTzolkin(2460839)).toEqual({number: 10, name: TzolkinName.KIB});
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expect(jdnTzolkin(2460840)).toEqual({number: 11, name: TzolkinName.KABAN});
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expect(jdnTzolkin(2460841)).toEqual({number: 12, name: TzolkinName.ETZNAB});
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expect(jdnTzolkin(2460842)).toEqual({number: 13, name: TzolkinName.KAWAK});
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expect(jdnTzolkin(2460843)).toEqual({number: 1, name: TzolkinName.AJAW});
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expect(jdnTzolkin(2460844)).toEqual({number: 2, name: TzolkinName.IMIX});
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expect(jdnTzolkin(2460845)).toEqual({number: 3, name: TzolkinName.IK});
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expect(jdnTzolkin(2460846)).toEqual({number: 4, name: TzolkinName.AKBAL});
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expect(jdnTzolkin(2460847)).toEqual({number: 5, name: TzolkinName.KAN});
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expect(jdnTzolkin(2460848)).toEqual({number: 6, name: TzolkinName.CHIKCHAN});
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expect(jdnTzolkin(2460849)).toEqual({number: 7, name: TzolkinName.KIMI});
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expect(jdnTzolkin(2460850)).toEqual({number: 8, name: TzolkinName.MANIK});
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expect(jdnTzolkin(2460851)).toEqual({number: 9, name: TzolkinName.LAMAT});
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expect(jdnTzolkin(2460852)).toEqual({number: 10, name: TzolkinName.MULUK});
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expect(jdnTzolkin(2460853)).toEqual({number: 11, name: TzolkinName.OK});
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expect(jdnTzolkin(2460854)).toEqual({number: 12, name: TzolkinName.CHUWEN});
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expect(jdnTzolkin(2460855)).toEqual({number: 13, name: TzolkinName.EB});
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expect(jdnTzolkin(2460856)).toEqual({number: 1, name: TzolkinName.BEN});
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expect(jdnTzolkin(2460857)).toEqual({number: 2, name: TzolkinName.IX});
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});
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2025-06-19 01:09:37 -04:00
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2025-06-25 20:36:28 -04:00
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it('converts sample dates from history correctly', () => {
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expect(jdnTzolkin(584283)).toEqual({number: 4, name: TzolkinName.AJAW}); // Mayan creation
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expect(jdnTzolkin(1705426)).toEqual({number: 1, name: TzolkinName.AKBAL}); // Ides of March
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expect(jdnTzolkin(2266296)).toEqual({number: 12, name: TzolkinName.BEN}); // Columbus reaches the Americas
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expect(jdnTzolkin(2430336)).toEqual({number: 5, name: TzolkinName.BEN}); // a date which will live in infamy
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expect(jdnTzolkin(2440423)).toEqual({number: 4, name: TzolkinName.AJAW}); // Moon landing
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expect(jdnTzolkin(2458920)).toEqual({number: 2, name: TzolkinName.KABAN}); // COVID-19 pandemic
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});
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2025-06-25 20:35:23 -04:00
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it('handles negative JDN correctly', () => {
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expect(jdnTzolkin(-1)).toEqual({number: 5, name: TzolkinName.KIB});
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expect(jdnTzolkin(-10)).toEqual({number: 9, name: TzolkinName.MANIK});
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expect(jdnTzolkin(-100)).toEqual({number: 10, name: TzolkinName.KABAN});
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expect(jdnTzolkin(-1000)).toEqual({number: 7, name: TzolkinName.KABAN});
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});
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2025-06-19 01:09:37 -04:00
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2025-06-25 20:35:23 -04:00
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it('completes a full Tzolkin cycle across JD0', () => {
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const results = new Set();
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2025-06-25 20:35:23 -04:00
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for (let i = -130; i < 130; i++) {
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results.add(formatTzolkin(jdnTzolkin(i)));
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}
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2025-06-19 01:09:37 -04:00
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2025-06-25 20:35:23 -04:00
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// Should have 260 unique combinations
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expect(results.size).toBe(260);
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});
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2025-06-19 01:09:37 -04:00
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});
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2025-06-22 04:28:56 -04:00
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describe('formatHaab', () => {
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2025-06-25 20:35:23 -04:00
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it('formats normal month and day', () => {
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expect(formatHaab(1, 5)).toBe('5 Pop');
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expect(formatHaab(7, 12)).toBe('12 Yaxkʼin');
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});
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2025-06-22 04:28:56 -04:00
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2025-06-25 20:35:23 -04:00
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it('formats Wayeb month', () => {
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expect(formatHaab(19, 4)).toBe('4 Wayebʼ');
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});
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2025-06-22 04:28:56 -04:00
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2025-06-25 20:35:23 -04:00
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it('formats zero day', () => {
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expect(formatHaab(3, 0)).toBe('0 Sip');
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});
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2025-06-22 04:28:56 -04:00
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});
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