150 lines
4.1 KiB
TypeScript
150 lines
4.1 KiB
TypeScript
import { describe, it, expect, vi, afterEach } from 'vitest'
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import {
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formatDate,
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formatDateShort,
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formatDateTime,
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formatTime,
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formatMonth,
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formatDateISO,
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formatDateFull,
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formatDateTimeFull,
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formatDateLong,
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formatRelativeTime,
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formatDateTimeShort,
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} from '../formatDate'
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// Fixed date: Friday 14 March 2025, 14:30:00 UTC
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const date = new Date('2025-03-14T14:30:00Z')
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describe('formatDate', () => {
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it('returns day-first format with short month', () => {
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const result = formatDate(date)
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expect(result).toContain('14')
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expect(result).toContain('Mar')
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expect(result).toContain('2025')
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})
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})
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describe('formatDateShort', () => {
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it('omits year when same as current year', () => {
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const now = new Date()
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const sameYear = new Date(`${now.getFullYear()}-06-15T10:00:00Z`)
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const result = formatDateShort(sameYear)
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expect(result).toContain('15')
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expect(result).toContain('Jun')
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expect(result).not.toContain(String(now.getFullYear()))
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})
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it('includes year when different from current year', () => {
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const oldDate = new Date('2020-06-15T10:00:00Z')
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const result = formatDateShort(oldDate)
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expect(result).toContain('2020')
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})
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})
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describe('formatDateTime', () => {
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it('includes date and 24-hour time', () => {
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const result = formatDateTime(date)
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expect(result).toContain('14')
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expect(result).toContain('Mar')
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expect(result).toContain('2025')
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// 24-hour format check: should contain 14:30 (UTC) or local equivalent
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expect(result).toMatch(/\d{2}:\d{2}/)
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})
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})
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describe('formatTime', () => {
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it('returns HH:MM in 24-hour format', () => {
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const result = formatTime(date)
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expect(result).toMatch(/^\d{2}:\d{2}$/)
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})
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})
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describe('formatMonth', () => {
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it('returns full month name and year', () => {
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const result = formatMonth(date)
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expect(result).toContain('March')
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expect(result).toContain('2025')
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})
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})
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describe('formatDateISO', () => {
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it('returns YYYY-MM-DD format', () => {
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expect(formatDateISO(date)).toBe('2025-03-14')
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})
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})
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describe('formatDateFull', () => {
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it('includes weekday', () => {
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const result = formatDateFull(date)
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expect(result).toContain('Fri')
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expect(result).toContain('14')
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expect(result).toContain('Mar')
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expect(result).toContain('2025')
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})
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})
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describe('formatDateTimeFull', () => {
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it('includes weekday and time', () => {
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const result = formatDateTimeFull(date)
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expect(result).toContain('Fri')
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expect(result).toMatch(/\d{2}:\d{2}/)
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})
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})
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describe('formatDateLong', () => {
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it('uses full month name', () => {
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const result = formatDateLong(date)
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expect(result).toContain('March')
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expect(result).toContain('2025')
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expect(result).toContain('14')
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})
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})
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describe('formatRelativeTime', () => {
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afterEach(() => {
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vi.useRealTimers()
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})
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it('returns "Just now" for times less than a minute ago', () => {
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vi.useFakeTimers()
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vi.setSystemTime(new Date('2025-03-14T14:30:30Z'))
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expect(formatRelativeTime('2025-03-14T14:30:00Z')).toBe('Just now')
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})
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it('returns minutes ago', () => {
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vi.useFakeTimers()
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vi.setSystemTime(new Date('2025-03-14T14:35:00Z'))
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expect(formatRelativeTime('2025-03-14T14:30:00Z')).toBe('5m ago')
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})
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it('returns hours ago', () => {
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vi.useFakeTimers()
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vi.setSystemTime(new Date('2025-03-14T16:30:00Z'))
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expect(formatRelativeTime('2025-03-14T14:30:00Z')).toBe('2h ago')
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})
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it('returns days ago', () => {
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vi.useFakeTimers()
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vi.setSystemTime(new Date('2025-03-17T14:30:00Z'))
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expect(formatRelativeTime('2025-03-14T14:30:00Z')).toBe('3d ago')
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})
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it('falls back to short date after 7 days', () => {
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vi.useFakeTimers()
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vi.setSystemTime(new Date('2025-03-25T14:30:00Z'))
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const result = formatRelativeTime('2025-03-14T14:30:00Z')
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expect(result).toContain('14')
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expect(result).toContain('Mar')
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})
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})
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describe('formatDateTimeShort', () => {
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it('includes date and time', () => {
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const result = formatDateTimeShort(date)
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expect(result).toContain('14')
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expect(result).toContain('Mar')
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expect(result).toMatch(/\d{2}:\d{2}/)
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})
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})
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