MCP Time Server Node

import { describe, test, expect } from '@jest/globals'; import { calculateEaster, getEasterBasedHoliday } from '../../src/data/holidays'; import type { Holiday } from '../../src/data/holidays'; describe('Easter Calculation', () => { describe('calculateEaster', () => { test('should calculate Easter date for known years', () => { // Test against known Easter dates const knownDates = [ { year: 2024, month: 3, day: 31 }, { year: 2025, month: 4, day: 20 }, { year: 2026, month: 4, day: 5 }, { year: 2027, month: 3, day: 28 }, { year: 2028, month: 4, day: 16 }, { year: 2029, month: 4, day: 1 }, { year: 2030, month: 4, day: 21 }, ]; knownDates.forEach(({ year, month, day }) => { const result = calculateEaster(year); expect(result).toEqual({ year, month, day }); }); }); test('should handle century boundaries', () => { expect(calculateEaster(1900)).toEqual({ year: 1900, month: 4, day: 15 }); expect(calculateEaster(2000)).toEqual({ year: 2000, month: 4, day: 23 }); expect(calculateEaster(2100)).toEqual({ year: 2100, month: 3, day: 28 }); expect(calculateEaster(2200)).toEqual({ year: 2200, month: 4, day: 6 }); }); test('should calculate early and late Easter dates', () => { // 2008 had an early Easter (March 23) expect(calculateEaster(2008)).toEqual({ year: 2008, month: 3, day: 23 }); // 2038 will have a late Easter (April 25) expect(calculateEaster(2038)).toEqual({ year: 2038, month: 4, day: 25 }); }); }); describe('getEasterBasedHoliday', () => { test('should calculate Good Friday (2 days before Easter)', () => { const holiday: Holiday = { name: 'Good Friday', type: 'easter-based', offset: -2, observe: 'always', }; // 2025: Easter is April 20, Good Friday should be April 18 const goodFriday2025 = getEasterBasedHoliday(holiday, 2025); expect(goodFriday2025).toEqual(new Date(2025, 3, 18)); // month is 0-indexed // 2024: Easter is March 31, Good Friday should be March 29 const goodFriday2024 = getEasterBasedHoliday(holiday, 2024); expect(goodFriday2024).toEqual(new Date(2024, 2, 29)); }); test('should calculate Easter Monday (1 day after Easter)', () => { const holiday: Holiday = { name: 'Easter Monday', type: 'easter-based', offset: 1, observe: 'always', }; // 2025: Easter is April 20, Easter Monday should be April 21 const easterMonday2025 = getEasterBasedHoliday(holiday, 2025); expect(easterMonday2025).toEqual(new Date(2025, 3, 21)); // 2024: Easter is March 31, Easter Monday should be April 1 const easterMonday2024 = getEasterBasedHoliday(holiday, 2024); expect(easterMonday2024).toEqual(new Date(2024, 3, 1)); }); test('should calculate Easter Sunday (offset 0)', () => { const holiday: Holiday = { name: 'Easter Sunday', type: 'easter-based', offset: 0, observe: 'always', }; const easterSunday2025 = getEasterBasedHoliday(holiday, 2025); expect(easterSunday2025).toEqual(new Date(2025, 3, 20)); }); test('should calculate Easter Saturday (1 day before Easter)', () => { const holiday: Holiday = { name: 'Easter Saturday', type: 'easter-based', offset: -1, observe: 'always', }; const easterSaturday2025 = getEasterBasedHoliday(holiday, 2025); expect(easterSaturday2025).toEqual(new Date(2025, 3, 19)); }); test('should handle holidays with no offset (default to 0)', () => { const holiday: Holiday = { name: 'Easter Sunday', type: 'easter-based', observe: 'always', }; const easter2025 = getEasterBasedHoliday(holiday, 2025); expect(easter2025).toEqual(new Date(2025, 3, 20)); }); test('should handle large offsets for other Easter-based holidays', () => { // Ascension Day is 39 days after Easter const ascension: Holiday = { name: 'Ascension Day', type: 'easter-based', offset: 39, observe: 'always', }; const ascension2025 = getEasterBasedHoliday(ascension, 2025); expect(ascension2025).toEqual(new Date(2025, 4, 29)); // May 29 // Pentecost is 49 days after Easter const pentecost: Holiday = { name: 'Pentecost', type: 'easter-based', offset: 49, observe: 'always', }; const pentecost2025 = getEasterBasedHoliday(pentecost, 2025); expect(pentecost2025).toEqual(new Date(2025, 5, 8)); // June 8 }); }); }); describe('Easter-based holidays in getHolidaysForYear', () => { // These tests will fail until implementation is complete test('should include Easter-based holidays for UK', () => { const { getHolidaysForYear } = require('../../src/data/holidays'); const ukHolidays2025 = getHolidaysForYear('UK', 2025); const goodFriday = ukHolidays2025.find((h: any) => h.name === 'Good Friday'); const easterMonday = ukHolidays2025.find((h: any) => h.name === 'Easter Monday'); expect(goodFriday?.date).toEqual(new Date(2025, 3, 18)); expect(easterMonday?.date).toEqual(new Date(2025, 3, 21)); }); test('should include Easter-based holidays for AU', () => { const { getHolidaysForYear } = require('../../src/data/holidays'); const auHolidays2025 = getHolidaysForYear('AU', 2025); const goodFriday = auHolidays2025.find((h: any) => h.name === 'Good Friday'); const easterSaturday = auHolidays2025.find((h: any) => h.name === 'Easter Saturday'); const easterMonday = auHolidays2025.find((h: any) => h.name === 'Easter Monday'); expect(goodFriday?.date).toEqual(new Date(2025, 3, 18)); expect(easterSaturday?.date).toEqual(new Date(2025, 3, 19)); expect(easterMonday?.date).toEqual(new Date(2025, 3, 21)); }); test('should include Good Friday for CA', () => { const { getHolidaysForYear } = require('../../src/data/holidays'); const caHolidays2025 = getHolidaysForYear('CA', 2025); const goodFriday = caHolidays2025.find((h: any) => h.name === 'Good Friday'); expect(goodFriday?.date).toEqual(new Date(2025, 3, 18)); }); });