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halfstreet/src/ui/chips.test.ts
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import { describe, it, expect } from 'vitest'
import { computeChips } from './chips'
import { world } from '../world'
import { initialStateFor } from '../engine/dispatcher'
import { dispatch } from '../engine/dispatcher'
describe('computeChips — sample world', () => {
it('shows valid exits as direction chips with the dim flag for invalid ones', () => {
const s = initialStateFor(world)
const chips = computeChips(s, world)
const directions = chips.filter((c) => c.kind === 'direction')
expect(directions.find((c) => c.label.includes('N'))?.disabled).toBe(false)
expect(directions.find((c) => c.label.includes('S'))?.disabled).toBe(true)
})
it('adds TAKE chips for visible takeable items', () => {
const s = initialStateFor(world)
const chips = computeChips(s, world)
expect(chips.find((c) => c.kind === 'item' && c.command === 'take letter')).toBeTruthy()
})
it('adds an encounter verb chip when an encounter is active', () => {
let s = initialStateFor(world)
s = dispatch(s, { kind: 'go', direction: 'n' }, world).state
s = dispatch(s, { kind: 'go', direction: 'e' }, world).state
const chips = computeChips(s, world)
expect(chips.find((c) => c.kind === 'encounter' && c.command.includes('rat'))).toBeTruthy()
})
it('always includes LOOK and INV', () => {
const s = initialStateFor(world)
const chips = computeChips(s, world)
expect(chips.find((c) => c.command === 'look')).toBeTruthy()
expect(chips.find((c) => c.command === 'inventory')).toBeTruthy()
})
})