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/** * Timezone Testing * * Tests date handling across: * - DST boundaries * - UTC vs local time * - Various date formats * - All-day events */ import { describe, it, expect, beforeAll } from 'vitest' describe('Timezone: Date Parsing', () => { it('should parse ISO 8601 dates correctly', async () => { const { parseNaturalDate } = await import('../../search.js') const isoFormats = [ '2024-01-15', '2024-01-15T10:30:00', '2024-01-15T10:30:00Z', '2024-01-15T10:30:00+00:00', '2024-01-15T10:30:00-05:00' ] for (const format of isoFormats) { const result = parseNaturalDate(format) expect(result).not.toBeNull() expect(typeof result).toBe('number') } }) it('should parse natural language dates', async () => { const { parseNaturalDate } = await import('../../search.js') const naturalDates = [ 'today', 'yesterday', 'tomorrow', 'last Monday', 'next Friday', 'last week', 'next month' ] for (const dateStr of naturalDates) { const result = parseNaturalDate(dateStr) expect(result).not.toBeNull() expect(typeof result).toBe('number') } }) it('should return start of day for parsed dates', async () => { const { parseNaturalDate } = await import('../../search.js') const result = parseNaturalDate('2024-01-15') const date = new Date(result) // Should be midnight local time expect(date.getHours()).toBe(0) expect(date.getMinutes()).toBe(0) expect(date.getSeconds()).toBe(0) }) }) describe('Timezone: Date Range', () => { it('should create correct 24-hour range', async () => { const { getDateRange } = await import('../../search.js') const range = getDateRange('2024-01-15') expect(range).not.toBeNull() expect(range.end - range.start).toBe(24 * 60 * 60 * 1000) }) it('should handle month boundaries', async () => { const { getDateRange } = await import('../../search.js') // Last day of January const jan31 = getDateRange('2024-01-31') expect(jan31).not.toBeNull() // First day of February const feb1 = getDateRange('2024-02-01') expect(feb1).not.toBeNull() // Feb 1 should be exactly 24 hours after Jan 31 start expect(feb1.start).toBe(jan31.end) }) it('should handle leap year correctly', async () => { const { getDateRange } = await import('../../search.js') // Feb 29, 2024 (leap year) const feb29 = getDateRange('2024-02-29') expect(feb29).not.toBeNull() // March 1, 2024 const mar1 = getDateRange('2024-03-01') expect(mar1.start).toBe(feb29.end) }) it('should handle year boundaries', async () => { const { getDateRange } = await import('../../search.js') // Dec 31 const dec31 = getDateRange('2024-12-31') expect(dec31).not.toBeNull() // Jan 1 next year const jan1 = getDateRange('2025-01-01') expect(jan1.start).toBe(dec31.end) }) }) describe('Timezone: DST Transitions', () => { it('should handle spring forward transition', async () => { const { getDateRange } = await import('../../search.js') // US DST starts second Sunday of March // March 10, 2024 is a DST transition day const dstDay = getDateRange('2024-03-10') expect(dstDay).not.toBeNull() // Day before DST const beforeDst = getDateRange('2024-03-09') expect(beforeDst).not.toBeNull() // Both should have valid ranges expect(dstDay.end - dstDay.start).toBeGreaterThan(0) expect(beforeDst.end - beforeDst.start).toBeGreaterThan(0) }) it('should handle fall back transition', async () => { const { getDateRange } = await import('../../search.js') // US DST ends first Sunday of November // November 3, 2024 is a DST transition day const dstDay = getDateRange('2024-11-03') expect(dstDay).not.toBeNull() // Should still represent a valid day expect(dstDay.end).toBeGreaterThan(dstDay.start) }) }) describe('Timezone: All-Day Events', () => { it('should treat all-day events as full day in local time', () => { // All-day event structure const allDayEvent = { title: 'Holiday', start: '2024-01-15T00:00:00', end: '2024-01-16T00:00:00', isAllDay: true } const startDate = new Date(allDayEvent.start) const endDate = new Date(allDayEvent.end) // Duration should be 24 hours const duration = endDate.getTime() - startDate.getTime() expect(duration).toBe(24 * 60 * 60 * 1000) }) it('should handle all-day events spanning multiple days', () => { const multiDayEvent = { title: 'Vacation', start: '2024-01-15T00:00:00', end: '2024-01-20T00:00:00', isAllDay: true } const startDate = new Date(multiDayEvent.start) const endDate = new Date(multiDayEvent.end) // Duration should be 5 days const duration = endDate.getTime() - startDate.getTime() expect(duration).toBe(5 * 24 * 60 * 60 * 1000) }) }) describe('Timezone: Mac Absolute Time Conversion', () => { it('should convert Mac absolute time to Unix timestamp', async () => { const { macAbsoluteTimeToDate } = await import('../../lib/validators.js') // Mac epoch: January 1, 2001 00:00:00 UTC // Unix epoch: January 1, 1970 00:00:00 UTC // Difference: 978307200 seconds // Mac time 0 = January 1, 2001 const macTime0 = macAbsoluteTimeToDate(0) const date = new Date(macTime0) expect(date.getUTCFullYear()).toBe(2001) expect(date.getUTCMonth()).toBe(0) // January expect(date.getUTCDate()).toBe(1) }) it('should handle recent Mac timestamps', async () => { const { macAbsoluteTimeToDate } = await import('../../lib/validators.js') // A timestamp from 2024 (approximately) // Jan 1, 2024 is about 725846400 seconds after Mac epoch const macTime2024 = 725846400 const result = macAbsoluteTimeToDate(macTime2024) expect(result).toBeGreaterThan(Date.parse('2023-01-01')) expect(result).toBeLessThan(Date.parse('2025-01-01')) }) it('should handle nanosecond timestamps', async () => { const { macAbsoluteTimeToDate } = await import('../../lib/validators.js') // Messages database uses nanoseconds const nanoTimestamp = 725846400000000000 // nanoseconds // The function should detect and handle this // (It divides by 1e9 if value is too large) const result = macAbsoluteTimeToDate(nanoTimestamp) expect(typeof result).toBe('number') expect(result).toBeGreaterThan(0) }) }) describe('Timezone: Timestamp Format Detection', () => { it('should detect seconds vs milliseconds', () => { const now = Date.now() const nowSeconds = Math.floor(now / 1000) // Milliseconds are 13 digits (until year 2286) expect(String(now).length).toBe(13) // Seconds are 10 digits expect(String(nowSeconds).length).toBe(10) // Can detect by checking if < 10000000000 const isSeconds = (ts) => ts > 0 && ts < 10000000000 expect(isSeconds(nowSeconds)).toBe(true) expect(isSeconds(now)).toBe(false) }) it('should handle both formats in date filtering', async () => { // Mock records with different timestamp formats // Use timestamps that represent the same moment const baseTimestampMs = 1705276800000 // Jan 15, 2024 00:00:00 UTC const baseTimestampSec = 1705276800 // Same in seconds const records = [ { date: '2024-01-15', dateTimestamp: baseTimestampMs }, // milliseconds { date: '2024-01-15', dateTimestamp: baseTimestampSec } // seconds ] // Test that we can correctly normalize both formats to the same value const normalizedTimestamps = records.map(record => { let ts = record.dateTimestamp // Normalize to milliseconds if in seconds if (ts < 10000000000) { ts *= 1000 } return ts }) // Both should normalize to the same millisecond timestamp expect(normalizedTimestamps[0]).toBe(baseTimestampMs) expect(normalizedTimestamps[1]).toBe(baseTimestampMs) // Verify the conversion by checking they represent the same date const date0 = new Date(normalizedTimestamps[0]) const date1 = new Date(normalizedTimestamps[1]) expect(date0.toISOString()).toBe(date1.toISOString()) }) }) describe('Timezone: Edge Cases', () => { it('should handle invalid date strings gracefully', async () => { const { parseNaturalDate } = await import('../../search.js') const invalidDates = [ 'not a date', '2024-13-45', 'Feb 30, 2024', '', null, undefined ] for (const invalid of invalidDates) { const result = parseNaturalDate(invalid) // Should return null for invalid dates, not throw expect(result === null || typeof result === 'number').toBe(true) } }) it('should handle dates at epoch boundaries', async () => { const { getDateRange } = await import('../../search.js') // Unix epoch const epoch = getDateRange('1970-01-01') // Note: This might return null if the library doesn't support it // That's acceptable behavior // Y2K const y2k = getDateRange('2000-01-01') expect(y2k).not.toBeNull() // Far future const future = getDateRange('2099-12-31') expect(future).not.toBeNull() }) it('should handle time-only strings', async () => { const { parseNaturalDate } = await import('../../search.js') // Time-only strings should either fail gracefully or assume today const result = parseNaturalDate('10:30 AM') // Either null or a timestamp for today at that time expect(result === null || typeof result === 'number').toBe(true) }) })