76 lines
2.2 KiB
TypeScript
76 lines
2.2 KiB
TypeScript
/**
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* Server-stamped phase timer math: every screen (admin, jury, big screen)
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* derives the same countdown from cursor timestamps — no client-local clocks.
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*/
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import { describe, it, expect } from 'vitest'
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import { elapsedMs, remainingSeconds, formatClock } from '@/lib/live-timer'
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const t0 = new Date('2026-06-11T10:00:00Z')
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const at = (s: number) => new Date(t0.getTime() + s * 1000)
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describe('live-timer', () => {
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it('elapsedMs counts from phaseStartedAt', () => {
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expect(
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elapsedMs(
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{ phaseStartedAt: t0, phaseDurationSeconds: 300, phasePausedAt: null, phasePausedAccumMs: 0 },
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at(90)
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)
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).toBe(90_000)
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})
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it('elapsedMs freezes while paused and subtracts accumulated pause', () => {
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// paused at +60s, asked at +90s → frozen at 60s
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expect(
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elapsedMs(
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{ phaseStartedAt: t0, phaseDurationSeconds: 300, phasePausedAt: at(60), phasePausedAccumMs: 0 },
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at(90)
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)
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).toBe(60_000)
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// resumed with 30s pause accumulated, asked at +120s → 90s elapsed
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expect(
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elapsedMs(
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{ phaseStartedAt: t0, phaseDurationSeconds: 300, phasePausedAt: null, phasePausedAccumMs: 30_000 },
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at(120)
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)
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).toBe(90_000)
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})
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it('elapsedMs accepts ISO strings (serialized cursor)', () => {
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expect(
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elapsedMs(
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{
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phaseStartedAt: t0.toISOString(),
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phaseDurationSeconds: 300,
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phasePausedAt: null,
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phasePausedAccumMs: 0,
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},
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at(45)
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)
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).toBe(45_000)
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})
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it('remainingSeconds goes negative on overtime', () => {
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expect(
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remainingSeconds(
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{ phaseStartedAt: t0, phaseDurationSeconds: 60, phasePausedAt: null, phasePausedAccumMs: 0 },
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at(75)
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)
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).toBe(-15)
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})
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it('remainingSeconds is null without a running timer', () => {
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expect(
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remainingSeconds(
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{ phaseStartedAt: null, phaseDurationSeconds: null, phasePausedAt: null, phasePausedAccumMs: 0 },
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t0
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)
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).toBeNull()
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})
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it('formatClock renders m:ss and overtime as +m:ss', () => {
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expect(formatClock(305)).toBe('5:05')
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expect(formatClock(0)).toBe('0:00')
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expect(formatClock(-83)).toBe('+1:23')
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})
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})
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