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chrono/tests/js/unit/entityInstances.test.ts
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chore: implement js test suites
Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>
2026-07-24 00:13:45 -04:00

90 lines
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TypeScript

import { describe, expect, it } from 'vitest'
import type { EntityObject } from '../../../../chrono_manager/src/models/entity'
import { daysVisibleRange } from '../../../src/utils/date'
import { expandEntityInstances } from '../../../src/utils/recurrence'
function localIso(year: number, month: number, day: number, hour = 0): string {
return new Date(year, month, day, hour).toISOString()
}
function eventEntity(
identifier: string,
startsOn: string | null,
endsOn: string | null,
timeless = false,
): EntityObject {
return {
identifier,
properties: {
startsOn,
endsOn,
timeless,
},
} as unknown as EntityObject
}
describe('entity instance expansion', () => {
it('normalizes timestamps and duration once', () => {
const [instance] = expandEntityInstances(
eventEntity('meeting', localIso(2026, 5, 15, 9), localIso(2026, 5, 15, 10)),
)
expect(instance.duration).toBe(60 * 60 * 1000)
expect(new Date(instance.start).getHours()).toBe(9)
expect(new Date(instance.dayStart).getHours()).toBe(0)
expect(instance.instanceId).toBeNull()
expect(instance.multiDay).toBe(false)
})
it('produces no instance for an invalid start timestamp', () => {
expect(expandEntityInstances(eventEntity('invalid', 'not-a-date', null))).toEqual([])
})
it('marks an overnight event as multi-day', () => {
const [instance] = expandEntityInstances(
eventEntity('overnight', localIso(2026, 5, 15, 23), localIso(2026, 5, 16, 1)),
)
expect(instance.multiDay).toBe(true)
expect(instance.timeless).toBe(true)
})
it('honors an exclusive midnight end', () => {
const [instance] = expandEntityInstances(
eventEntity('all-day', localIso(2026, 5, 20), localIso(2026, 5, 21), true),
)
const end = new Date(instance.end)
expect([end.getDate(), end.getHours()]).toEqual([21, 0])
expect(new Date(instance.dayStart).getDate()).toBe(20)
expect(instance.multiDay).toBe(false)
})
it('treats UTC timestamps on timeless events as floating calendar dates', () => {
const [instance] = expandEntityInstances(
eventEntity('utc-all-day', '2025-03-27T00:00:00+00:00', '2025-03-28T00:00:00+00:00', true),
)
const start = new Date(instance.start)
expect([start.getMonth(), start.getDate(), start.getHours()]).toEqual([2, 27, 0])
expect(new Date(instance.end).getDate()).toBe(28)
})
it('gives a zero-duration event a queryable minimum duration', () => {
const [instance] = expandEntityInstances(
eventEntity('instant', localIso(2026, 5, 15, 9), null),
)
expect(instance.duration).toBe(1)
})
it('omits a non-recurring event outside the requested range', () => {
const instances = expandEntityInstances(
eventEntity('outside', localIso(2026, 6, 1, 9), localIso(2026, 6, 1, 10)),
daysVisibleRange(new Date(2026, 5, 15), 2),
)
expect(instances).toEqual([])
})
})