project-transition-state.test.ts81 lines · main

1	import { beforeEach, describe, expect, it } from 'vitest'
2
3	import {
4	clearPersistedTransitionStartTime,
5	getPersistedTransitionStartTime,
6	getRemainingTransitionTimeMs,
7	hoursToMilliseconds,
8	minutesToMilliseconds,
9	} from './project-transition-state'
10
11	describe('project-transition-state', () => {
12	beforeEach(() => {
13	window.localStorage.clear()
14	})
15
16	describe('getPersistedTransitionStartTime', () => {
17	it('stores the current time when no start time exists', () => {
18	const startTime = getPersistedTransitionStartTime('transition-key', 1_000)
19
20	expect(startTime).toBe(1_000)
21	expect(window.localStorage.getItem('transition-key')).toBe('1000')
22	})
23
24	it('reuses an existing stored start time', () => {
25	window.localStorage.setItem('transition-key', '2_000'.replace('_', ''))
26
27	const startTime = getPersistedTransitionStartTime('transition-key', 3_000)
28
29	expect(startTime).toBe(2_000)
30	expect(window.localStorage.getItem('transition-key')).toBe('2000')
31	})
32
33	it('replaces malformed stored values with the current time', () => {
34	window.localStorage.setItem('transition-key', 'not-a-number')
35
36	const startTime = getPersistedTransitionStartTime('transition-key', 3_000)
37
38	expect(startTime).toBe(3_000)
39	expect(window.localStorage.getItem('transition-key')).toBe('3000')
40	})
41
42	it('replaces stale stored values when they exceed the allowed max age', () => {
43	window.localStorage.setItem('transition-key', '1_000'.replace('_', ''))
44
45	const startTime = getPersistedTransitionStartTime(
46	'transition-key',
47	hoursToMilliseconds(30),
48	hoursToMilliseconds(24)
49	)
50
51	expect(startTime).toBe(hoursToMilliseconds(30))
52	expect(window.localStorage.getItem('transition-key')).toBe(String(hoursToMilliseconds(30)))
53	})
54	})
55
56	it('removes a persisted transition start time', () => {
57	window.localStorage.setItem('transition-key', '1000')
58
59	clearPersistedTransitionStartTime('transition-key')
60
61	expect(window.localStorage.getItem('transition-key')).toBeNull()
62	})
63
64	it('returns the remaining threshold time and clamps at zero', () => {
65	expect(
66	getRemainingTransitionTimeMs({
67	startTimeMs: 1_000,
68	thresholdMs: minutesToMilliseconds(10),
69	now: 4_000,
70	})
71	).toBe(minutesToMilliseconds(10) - 3_000)
72
73	expect(
74	getRemainingTransitionTimeMs({
75	startTimeMs: 1_000,
76	thresholdMs: minutesToMilliseconds(10),
77	now: minutesToMilliseconds(10) + 5_000,
78	})
79	).toBe(0)
80	})
81	})