68 lines
2.4 KiB
TypeScript
68 lines
2.4 KiB
TypeScript
import { describe, expect, it } from 'vitest'
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import { readVisitedPots, recordVisitedPot } from './visitedPots'
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function createMockStorage(): Storage {
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const store = new Map<string, string>()
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return {
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getItem: (key: string) => store.get(key) ?? null,
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setItem: (key: string, value: string) => void store.set(key, value),
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removeItem: (key: string) => void store.delete(key),
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clear: () => store.clear(),
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key: () => null,
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get length() { return store.size },
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}
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}
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describe('visited pots storage', () => {
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it('returns an empty list when nothing is stored', () => {
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expect(readVisitedPots(createMockStorage())).toEqual([])
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})
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it('records a visited pot', () => {
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const storage = createMockStorage()
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recordVisitedPot(storage, { slug: 'abc', name: 'Lisbon Trip', currency: 'EUR' })
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expect(readVisitedPots(storage)).toEqual([
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expect.objectContaining({ slug: 'abc', name: 'Lisbon Trip', currency: 'EUR' }),
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])
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})
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it('moves a re-visited pot to the front instead of duplicating it', () => {
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const storage = createMockStorage()
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recordVisitedPot(storage, { slug: 'abc', name: 'Lisbon Trip', currency: 'EUR' })
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recordVisitedPot(storage, { slug: 'def', name: 'Ski Weekend', currency: 'CHF' })
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recordVisitedPot(storage, { slug: 'abc', name: 'Lisbon Trip', currency: 'EUR' })
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const pots = readVisitedPots(storage)
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expect(pots).toHaveLength(2)
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expect(pots[0]?.slug).toBe('abc')
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})
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it('updates the stored name and currency on revisit', () => {
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const storage = createMockStorage()
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recordVisitedPot(storage, { slug: 'abc', name: 'Old Name', currency: 'EUR' })
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recordVisitedPot(storage, { slug: 'abc', name: 'New Name', currency: 'USD' })
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expect(readVisitedPots(storage)).toEqual([
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expect.objectContaining({ slug: 'abc', name: 'New Name', currency: 'USD' }),
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])
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})
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it('ignores malformed JSON', () => {
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const storage = createMockStorage()
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storage.setItem('stb:visited-pots', '{not json')
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expect(readVisitedPots(storage)).toEqual([])
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})
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it('caps the list at 20 entries, keeping the most recent', () => {
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const storage = createMockStorage()
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for (let i = 0; i < 25; i++) {
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recordVisitedPot(storage, { slug: `pot-${i}`, name: `Pot ${i}`, currency: 'EUR' })
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}
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const pots = readVisitedPots(storage)
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expect(pots).toHaveLength(20)
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expect(pots[0]?.slug).toBe('pot-24')
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expect(pots.some(p => p.slug === 'pot-0')).toBe(false)
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})
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})
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