interview.test.ts
2,991 bytes
| 1 | import { describe, expect, it } from 'vitest' |
|---|---|
| 2 | import { initialCoverage, type InterviewTurn, type Segment, type Session } from '../../shared/types' |
| 3 | import type { InterviewContext, InterviewLlm } from '../providers/types' |
| 4 | import { runInterviewTurn } from './interview' |
| 5 | import { RECENT_SEGMENT_WINDOW } from './summary' |
| 6 | |
| 7 | function makeSession(segments: Segment[]): Session { |
| 8 | return { |
| 9 | id: 'sess-1', |
| 10 | name: 'proj', |
| 11 | targetDir: '/tmp/proj', |
| 12 | createdAt: new Date().toISOString(), |
| 13 | segments, |
| 14 | coverage: initialCoverage(), |
| 15 | summary: 'earlier summary', |
| 16 | status: 'interviewing', |
| 17 | openBlockers: [], |
| 18 | } |
| 19 | } |
| 20 | |
| 21 | function segment(id: string, speaker: Segment['speaker'], text: string): Segment { |
| 22 | return { id, ts: new Date().toISOString(), speaker, text } |
| 23 | } |
| 24 | |
| 25 | function stubLlm(turn: InterviewTurn, capture?: (ctx: InterviewContext) => void): InterviewLlm { |
| 26 | return { |
| 27 | async nextTurn(context) { |
| 28 | capture?.(context) |
| 29 | return turn |
| 30 | }, |
| 31 | async generateFile() { |
| 32 | throw new Error('not used in this test') |
| 33 | }, |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | describe('runInterviewTurn', () => { |
| 38 | it('short-circuits with done:true when the last user answer is exactly "done"', async () => { |
| 39 | const session = makeSession([segment('S1', 'user', 'Done')]) |
| 40 | const llm = stubLlm({ |
| 41 | coverage: initialCoverage(), |
| 42 | nextQuestion: 'should not be used', |
| 43 | contradiction: null, |
| 44 | done: false, |
| 45 | summaryUpdate: null, |
| 46 | }) |
| 47 | const turn = await runInterviewTurn(llm, session) |
| 48 | expect(turn.done).toBe(true) |
| 49 | expect(turn.coverage).toEqual(session.coverage) |
| 50 | }) |
| 51 | |
| 52 | it('passes a contradiction from the LLM straight through unchanged', async () => { |
| 53 | const session = makeSession([segment('S1', 'user', 'we only support web')]) |
| 54 | const contradiction = { segmentIds: ['S1', 'S3'], description: 'web-only vs mobile-only' } |
| 55 | const llm = stubLlm({ |
| 56 | coverage: initialCoverage(), |
| 57 | nextQuestion: 'Which is it, web or mobile?', |
| 58 | contradiction, |
| 59 | done: false, |
| 60 | summaryUpdate: null, |
| 61 | }) |
| 62 | const turn = await runInterviewTurn(llm, session) |
| 63 | expect(turn.contradiction).toEqual(contradiction) |
| 64 | }) |
| 65 | |
| 66 | it('sends only the last 40 segments plus the running summary once the transcript grows past the window', async () => { |
| 67 | const segments = Array.from({ length: RECENT_SEGMENT_WINDOW + 7 }, (_, i) => |
| 68 | segment(`S${i + 1}`, i % 2 === 0 ? 'user' : 'interviewer', `text ${i + 1}`), |
| 69 | ) |
| 70 | const session = makeSession(segments) |
| 71 | let seenContext: InterviewContext | undefined |
| 72 | const llm = stubLlm( |
| 73 | { |
| 74 | coverage: initialCoverage(), |
| 75 | nextQuestion: 'next?', |
| 76 | contradiction: null, |
| 77 | done: false, |
| 78 | summaryUpdate: null, |
| 79 | }, |
| 80 | (ctx) => { |
| 81 | seenContext = ctx |
| 82 | }, |
| 83 | ) |
| 84 | |
| 85 | await runInterviewTurn(llm, session) |
| 86 | |
| 87 | expect(seenContext?.segments).toHaveLength(RECENT_SEGMENT_WINDOW) |
| 88 | expect(seenContext?.segments[0].id).toBe('S8') |
| 89 | expect(seenContext?.summary).toBe('earlier summary') |
| 90 | }) |
| 91 | }) |
| 92 | |