41 lines
1.5 KiB
JavaScript
41 lines
1.5 KiB
JavaScript
import { describe, it, expect } from 'vitest'
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import { dayKey, weekKey, monthKey, buckets } from '@cozy-games/utils/date-bucket/date-bucket.js'
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describe('date-bucket', () => {
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it('builds a zero-padded UTC day key', () => {
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expect(dayKey(new Date('2026-07-03T12:00:00Z'))).toBe('2026-07-03')
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expect(dayKey(new Date('2026-01-09T00:00:00Z'))).toBe('2026-01-09')
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})
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it('builds a UTC month key', () => {
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expect(monthKey(new Date('2026-07-03T12:00:00Z'))).toBe('2026-07')
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expect(monthKey(new Date('2026-12-31T23:59:59Z'))).toBe('2026-12')
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})
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it('builds an ISO week key', () => {
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// 2026-07-03 falls in ISO week 27
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expect(weekKey(new Date('2026-07-03T12:00:00Z'))).toBe('2026-W27')
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// 2026-01-01 is a Thursday -> ISO week 1 of 2026
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expect(weekKey(new Date('2026-01-01T00:00:00Z'))).toBe('2026-W01')
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})
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it('rolls the ISO week-year back at the January boundary', () => {
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// 2027-01-01 is a Friday -> still ISO week 53 of 2026
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expect(weekKey(new Date('2027-01-01T00:00:00Z'))).toBe('2026-W53')
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})
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it('uses UTC, not local time', () => {
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// Just before UTC midnight is still the 3rd in UTC
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expect(dayKey(new Date('2026-07-03T23:59:59Z'))).toBe('2026-07-03')
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// Just after is the 4th
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expect(dayKey(new Date('2026-07-04T00:00:01Z'))).toBe('2026-07-04')
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})
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it('returns all three keys together', () => {
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expect(buckets(new Date('2026-07-03T12:00:00Z'))).toEqual({
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day: '2026-07-03',
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week: '2026-W27',
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month: '2026-07'
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})
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})
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})
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