Test rule sets

Inject a clock to make time deterministic:

import { createFatigue, memoryAdapter } from 'fatigue-kit'

const clock = { current: 0, now: () => clock.current }
const fatigue = createFatigue({ storage: memoryAdapter(), clock })

fatigue.tryConsume('popup', [{ max: 1, every: 'day' }])
clock.current += 24 * 60 * 60 * 1000

For calendar rules, prefer constructing expected timestamps with local date components. The library avoids + 24h calendar arithmetic so daylight-saving transitions do not shift boundaries.