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Jinjing
39b2ec832e
* fix(native-chat): scope composer sends to the active turn * fix(native-chat): close pending send lifecycle gaps * fix(native-chat): deduplicate pending message derivation
107 lines
3.2 KiB
TypeScript
107 lines
3.2 KiB
TypeScript
import { describe, expect, it } from 'vitest'
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import {
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deriveNativeChatStreamingText,
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nativeChatStreamingMessage,
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NATIVE_CHAT_STREAMING_ID
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} from './native-chat-streaming'
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import type { NativeChatMessage } from './native-chat-types'
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const assistant = (text: string): NativeChatMessage => ({
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id: `a-${text.length}`,
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role: 'assistant',
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blocks: [{ type: 'text', text }],
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timestamp: null,
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source: 'transcript'
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})
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const user = (text: string): NativeChatMessage => ({
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id: `u-${text.length}`,
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role: 'user',
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blocks: [{ type: 'text', text }],
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timestamp: null,
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source: 'transcript'
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})
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describe('deriveNativeChatStreamingText', () => {
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it('returns null when not working (stale preview never shows)', () => {
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expect(
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deriveNativeChatStreamingText({ messages: [], previewText: 'Hello there', working: false })
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).toBeNull()
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})
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it('returns null for empty / whitespace preview', () => {
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expect(
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deriveNativeChatStreamingText({ messages: [], previewText: '', working: true })
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).toBeNull()
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expect(
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deriveNativeChatStreamingText({ messages: [], previewText: ' ', working: true })
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).toBeNull()
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})
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it('shows the preview while it leads an empty/user-tailed transcript', () => {
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expect(
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deriveNativeChatStreamingText({
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messages: [user('do the thing')],
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previewText: 'Working on it',
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working: true
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})
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).toBe('Working on it')
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})
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it('treats an optimistic user echo as the active streaming-turn boundary', () => {
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const optimistic = {
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...user('new prompt'),
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id: 'pending:send-1',
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timestamp: 20,
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source: 'scrape' as const
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}
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expect(
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deriveNativeChatStreamingText({
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messages: [assistant('A much longer answer from the completed prior turn'), optimistic],
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previewText: 'New reply',
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working: true
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})
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).toBe('New reply')
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})
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it('drops the preview once the real assistant turn contains it (no duplicate)', () => {
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expect(
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deriveNativeChatStreamingText({
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messages: [assistant('Working on it, here is the full answer.')],
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previewText: 'Working on it',
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working: true
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})
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).toBeNull()
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})
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it('drops the preview when it is not longer than the last assistant turn (no flicker)', () => {
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expect(
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deriveNativeChatStreamingText({
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messages: [assistant('Same length text')],
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previewText: 'Same length text',
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working: true
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})
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).toBeNull()
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})
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it('keeps showing while the preview still leads (grows past the last turn)', () => {
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// The transcript hasn't flushed the new content yet; preview is longer.
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expect(
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deriveNativeChatStreamingText({
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messages: [assistant('Partial')],
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previewText: 'Partial answer that is now much longer than before',
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working: true
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})
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).toBe('Partial answer that is now much longer than before')
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})
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})
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describe('nativeChatStreamingMessage', () => {
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it('builds a stable-id assistant hook message', () => {
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const m = nativeChatStreamingMessage('hi')
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expect(m.id).toBe(NATIVE_CHAT_STREAMING_ID)
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expect(m.role).toBe('assistant')
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expect(m.source).toBe('hook')
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expect(m.blocks).toEqual([{ type: 'text', text: 'hi' }])
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})
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})
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