hermes-agent/ui-tui/src/__tests__/messages.test.ts
Brooklyn Nicholson c49bbbe8c2 chore: fmt
2026-04-08 22:02:38 -05:00

23 lines
707 B
TypeScript

import { describe, expect, it } from 'vitest'
import { upsert } from '../lib/messages.js'
describe('upsert', () => {
it('appends when last role differs', () => {
expect(upsert([{ role: 'user', text: 'hi' }], 'assistant', 'hello')).toHaveLength(2)
})
it('replaces when last role matches', () => {
expect(upsert([{ role: 'assistant', text: 'partial' }], 'assistant', 'full')[0]!.text).toBe('full')
})
it('appends to empty', () => {
expect(upsert([], 'user', 'first')).toEqual([{ role: 'user', text: 'first' }])
})
it('does not mutate', () => {
const prev = [{ role: 'user' as const, text: 'hi' }]
upsert(prev, 'assistant', 'yo')
expect(prev).toHaveLength(1)
})
})