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import {
ensureAuthSession,
getDomainPreferenceForm,
getTaskStatus,
guestLogin,
recommend,
register,
updatePreferences,
watchTaskStatus,
} from '../utils/api'
describe('frontend unit: api utils', () => {
beforeEach(() => {
vi.stubGlobal('fetch', vi.fn())
})
afterEach(() => {
vi.unstubAllGlobals()
vi.restoreAllMocks()
})
it('recommend should send expected payload and return parsed response', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
restaurants: [],
items: [
{
id: 'movie-1',
domain: 'movie',
title: 'Quiet Signal',
rating: 8.2,
source: 'TMDB',
},
],
llm_reply: 'hello',
intent: 'chat',
}),
})
const response = await recommend(
'need spicy food',
'u-1',
[{ role: 'user', content: 'history' }],
'conv-1',
true
)
expect(response.intent).toBe('chat')
expect(response.items?.[0]?.title).toBe('Quiet Signal')
expect(mockFetch).toHaveBeenCalledTimes(1)
const [url, init] = mockFetch.mock.calls[0]
expect(String(url)).toContain('/api/process')
const body = JSON.parse((init as RequestInit).body as string)
expect(body).toEqual({
query: 'need spicy food',
user_id: 'u-1',
conversation_history: [{ role: 'user', content: 'history' }],
conversation_id: 'conv-1',
use_online_agent: true,
})
})
it('recommend should throw friendly network error when fetch fails', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockRejectedValue(new TypeError('Failed to fetch'))
await expect(recommend('hi')).rejects.toThrow('Network error: Cannot connect to backend')
})
it('recommend should include optional time travel payload', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
restaurants: [],
llm_reply: 'regenerated',
intent: 'chat',
domain: 'restaurant',
}),
})
await recommend(
'edited request',
'u-1',
[{ role: 'user', content: 'edited request' }],
'conv-1',
false,
{
sourceMessageId: 'm-new',
replayFromMessageId: 'm-old',
branchId: 'b-new',
timeTravelMode: 'linear_regenerate',
}
)
const [, init] = mockFetch.mock.calls[0]
const body = JSON.parse((init as RequestInit).body as string)
expect(body).toMatchObject({
source_message_id: 'm-new',
replay_from_message_id: 'm-old',
branch_id: 'b-new',
time_travel_mode: 'linear_regenerate',
})
})
it('recommend should include a non-time-travel branch scope when provided', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
restaurants: [],
llm_reply: 'scoped',
intent: 'chat',
}),
})
await recommend(
'same branch request',
'u-1',
[{ role: 'user', content: 'same branch request' }],
'conv-1',
false,
{ scopeBranchId: 'branch-main' },
)
const [, init] = mockFetch.mock.calls[0]
const body = JSON.parse((init as RequestInit).body as string)
expect(body).toMatchObject({
branch_id: 'branch-main',
})
expect(body).not.toHaveProperty('time_travel_mode')
})
it('recommend should throw contract error when response shape is invalid', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
restaurants: 'not-an-array',
}),
})
await expect(recommend('invalid shape')).rejects.toThrow(
'API contract validation failed for /api/process'
)
})
it('getTaskStatus should include user and conversation query parameters', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
task_id: 't-1',
status: 'processing',
progress: 30,
message: 'running',
}),
})
const status = await getTaskStatus('t-1', 'u-2', 'c-2')
expect(status.status).toBe('processing')
const [url] = mockFetch.mock.calls[0]
const calledUrl = String(url)
expect(calledUrl).toContain('/api/status/t-1')
expect(calledUrl).toContain('user_id=u-2')
expect(calledUrl).toContain('conversation_id=c-2')
})
it('updatePreferences should normalize profile preference payload for the API', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
message: 'Preferences updated successfully',
preferences: {
restaurant_types: ['casual'],
flavor_profiles: ['spicy'],
dining_purpose: 'friends',
budget_range: { min: 25, max: 70, currency: 'SGD', per: 'person' },
location: 'Chinatown',
},
}),
})
await updatePreferences({
restaurant_types: ['casual'],
flavor_profiles: ['spicy'],
dining_purpose: 'friends',
budget_range: { min: 25, max: 70, currency: 'SGD', per: 'person' },
location: 'Chinatown',
}, 'u-3')
const [url, init] = mockFetch.mock.calls[0]
expect(String(url)).toContain('/api/update-preferences')
expect(JSON.parse((init as RequestInit).body as string)).toEqual({
user_id: 'u-3',
restaurantTypes: ['casual'],
flavorProfiles: ['spicy'],
diningPurpose: 'friends',
budgetRange: { min: 25, max: 70, currency: 'SGD', per: 'person' },
location: 'Chinatown',
})
})
it('getDomainPreferenceForm should encode the domain path segment', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
domain: 'movie/tv picks',
fields: [],
missing_required: [],
complete: true,
}),
})
await getDomainPreferenceForm('movie/tv picks')
const [url, init] = mockFetch.mock.calls[0]
expect(String(url)).toContain('/api/domains/movie%2Ftv%20picks/preference-form')
expect((init as RequestInit).credentials).toBe('include')
})
it('guestLogin should send device id with credentials included', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
user: {
id: 'u-session',
kind: 'guest',
role: 'user',
status: 'active',
},
session: {
id: 's-session',
user_id: 'u-session',
anonymous_device_id: 'd-session',
status: 'active',
expires_at: '2026-06-30T00:00:00Z',
},
}),
})
const auth = await guestLogin('browser-device')
expect(auth.user.id).toBe('u-session')
const [url, init] = mockFetch.mock.calls[0]
expect(String(url)).toContain('/api/auth/guest')
expect((init as RequestInit).credentials).toBe('include')
expect(JSON.parse((init as RequestInit).body as string)).toEqual({ device_id: 'browser-device' })
})
it('ensureAuthSession should fall back to guest login when no cookie session exists', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch
.mockResolvedValueOnce({
ok: false,
status: 401,
statusText: 'Unauthorized',
text: async () => 'missing session',
})
.mockResolvedValueOnce({
ok: true,
json: async () => ({
user: {
id: 'u-new-guest',
kind: 'guest',
role: 'user',
status: 'active',
},
session: {
id: 's-new-guest',
user_id: 'u-new-guest',
status: 'active',
expires_at: '2026-06-30T00:00:00Z',
},
}),
})
const auth = await ensureAuthSession('browser-device')
expect(auth.user.id).toBe('u-new-guest')
expect(mockFetch).toHaveBeenCalledTimes(2)
expect(String(mockFetch.mock.calls[0][0])).toContain('/api/auth/session')
expect((mockFetch.mock.calls[0][1] as RequestInit).credentials).toBe('include')
expect(String(mockFetch.mock.calls[1][0])).toContain('/api/auth/guest')
})
it('watchTaskStatus streams status frames over SSE and settles on completion', () => {
const instances: FakeEventSource[] = []
class FakeEventSource {
static readonly CONNECTING = 0
static readonly OPEN = 1
static readonly CLOSED = 2
url: string
withCredentials: boolean
readyState = FakeEventSource.OPEN
onmessage: ((event: { data: string }) => void) | null = null
onerror: (() => void) | null = null
constructor(url: string, init?: { withCredentials?: boolean }) {
this.url = url
this.withCredentials = Boolean(init?.withCredentials)
instances.push(this)
}
emit(payload: unknown) {
this.onmessage?.({ data: JSON.stringify(payload) })
}
close() {
this.readyState = FakeEventSource.CLOSED
}
}
vi.stubGlobal('EventSource', FakeEventSource)
const onStatus = vi.fn()
const onSettled = vi.fn()
const stop = watchTaskStatus('t-7', 'u-1', 'c-1', { onStatus, onSettled })
const es = instances[0]
expect(es.url).toContain('/api/status/t-7/stream')
expect(es.url).toContain('user_id=u-1')
expect(es.url).toContain('conversation_id=c-1')
expect(es.withCredentials).toBe(true)
es.emit({ task_id: 't-7', status: 'processing', progress: 40, message: 'searching' })
expect(onStatus).toHaveBeenCalledWith(expect.objectContaining({ status: 'processing', progress: 40 }))
expect(onSettled).not.toHaveBeenCalled()
es.emit({
task_id: 't-7',
status: 'completed',
progress: 100,
message: 'ready',
result: { restaurants: [], thinking_steps: [] },
})
expect(onStatus).toHaveBeenCalledWith(expect.objectContaining({ status: 'completed' }))
expect(onSettled).toHaveBeenCalledTimes(1)
// The stream is torn down once the task settles.
expect(es.readyState).toBe(FakeEventSource.CLOSED)
stop()
})
it('watchTaskStatus falls back to polling when EventSource is unavailable', async () => {
// jsdom provides no EventSource, so the watcher must keep working via getTaskStatus.
expect(typeof EventSource).toBe('undefined')
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: true,
json: async () => ({
task_id: 't-8',
status: 'completed',
progress: 100,
message: 'ready',
result: { restaurants: [], thinking_steps: [] },
}),
})
const onStatus = vi.fn()
const onSettled = vi.fn()
const stop = watchTaskStatus('t-8', 'u-1', 'c-1', { onStatus, onSettled })
// Allow the immediate poll's promise chain to resolve.
await new Promise(resolve => setTimeout(resolve, 0))
await new Promise(resolve => setTimeout(resolve, 0))
expect(onStatus).toHaveBeenCalledWith(expect.objectContaining({ status: 'completed' }))
expect(onSettled).toHaveBeenCalledTimes(1)
const [url] = mockFetch.mock.calls[0]
expect(String(url)).toContain('/api/status/t-8')
stop()
})
it('register should expose only the backend detail message on auth errors', async () => {
const mockFetch = globalThis.fetch as unknown as ReturnType<typeof vi.fn>
mockFetch.mockResolvedValue({
ok: false,
status: 400,
statusText: 'Bad Request',
text: async () => JSON.stringify({ detail: 'password must be at least 8 characters' }),
})
let error: Error | null = null
try {
await register('test@example.com', 'short')
} catch (caught) {
error = caught as Error
}
expect(error?.message).toBe('password must be at least 8 characters')
})
})
|