Files
familysync/apps/api/tests/auth/persistSessionCookie.test.ts
T
Lucas Berger 8343faddce feat(260610-k1z-01): wire persistSessionCookie into index.ts + add unit tests
- Mount persistSessionCookie() immediately after oidcAuthMiddleware() inside !devBypassActive block
- Test A: truthy oidcAuthJwt produces Set-Cookie with Max-Age, SameSite=Lax, HttpOnly, Secure
- Test B: falsy/absent oidcAuthJwt emits no oidc-auth cookie (no-resurrection guard)
2026-06-10 14:32:42 -04:00

123 lines
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TypeScript

/**
* persistSessionCookie() middleware — unit tests.
*
* Tests the two critical behavioral properties:
* A (persist path): when oidcAuthJwt is set on context, the response includes an
* oidc-auth Set-Cookie with Max-Age, SameSite=Lax, HttpOnly, Secure.
* B (guard path): when oidcAuthJwt is NOT set, no oidc-auth Set-Cookie is emitted
* (the no-resurrection security guard).
*
* Does NOT call @hono/oidc-auth — sets the context variable directly to keep this a
* pure unit test that runs without MariaDB or any external service.
*/
import { describe, it, expect, afterEach } from 'vitest'
import { Hono } from 'hono'
import { persistSessionCookie } from '../../src/auth/persistSessionCookie.js'
// Read the cookie name the same way the implementation does so the test stays correct
// if OIDC_COOKIE_NAME is overridden in the environment.
const COOKIE_NAME = process.env.OIDC_COOKIE_NAME ?? 'oidc-auth'
afterEach(() => {
// Nothing to restore: these tests do not mutate process.env.
})
describe('persistSessionCookie middleware', () => {
describe('Test A — persist path (oidcAuthJwt truthy)', () => {
it('emits an oidc-auth Set-Cookie with Max-Age, SameSite=Lax, HttpOnly, and Secure', async () => {
const app = new Hono()
// Simulate what @hono/oidc-auth does: set a signed session JWT on context.
app.use('/api/*', async (c, next) => {
c.set('oidcAuthJwt' as never, 'header.payload.sig')
await next()
})
app.use('/api/*', persistSessionCookie())
app.get('/api/test', (c) => c.json({ ok: true }))
const res = await app.request('/api/test')
expect(res.status).toBe(200)
const setCookieHeader = res.headers.get('set-cookie')
expect(setCookieHeader).not.toBeNull()
// Cookie name must appear in the Set-Cookie value.
expect(setCookieHeader).toContain(COOKIE_NAME)
// Max-Age must be present (persistent cookie, not session-scoped).
expect(setCookieHeader?.toLowerCase()).toContain('max-age')
// SameSite=Lax must be present.
expect(setCookieHeader?.toLowerCase()).toContain('samesite=lax')
// HttpOnly must be present.
expect(setCookieHeader?.toLowerCase()).toContain('httponly')
// Secure must be present.
expect(setCookieHeader?.toLowerCase()).toContain('secure')
})
it('re-issues the same JWT value the library provided (no re-signing)', async () => {
const dummyJwt = 'header.payload.sig'
const app = new Hono()
app.use('/api/*', async (c, next) => {
c.set('oidcAuthJwt' as never, dummyJwt)
await next()
})
app.use('/api/*', persistSessionCookie())
app.get('/api/test', (c) => c.json({ ok: true }))
const res = await app.request('/api/test')
const setCookieHeader = res.headers.get('set-cookie') ?? ''
// The cookie value must contain the exact JWT string (URL-encoded = is fine but
// the JWT characters must all appear).
expect(setCookieHeader).toContain(dummyJwt)
})
})
describe('Test B — guard path (oidcAuthJwt falsy / absent)', () => {
it('emits NO oidc-auth Set-Cookie when oidcAuthJwt is not set (no resurrection)', async () => {
const app = new Hono()
// Do NOT set oidcAuthJwt — simulates a logged-out or unauthenticated request.
app.use('/api/*', persistSessionCookie())
app.get('/api/test', (c) => c.json({ ok: true }))
const res = await app.request('/api/test')
expect(res.status).toBe(200)
const setCookieHeader = res.headers.get('set-cookie')
// Either no Set-Cookie header at all, or it must not contain the oidc-auth cookie.
const hasOidcCookie =
setCookieHeader !== null && setCookieHeader.includes(COOKIE_NAME)
expect(hasOidcCookie).toBe(false)
})
it('emits NO Set-Cookie when oidcAuthJwt is explicitly set to empty string', async () => {
const app = new Hono()
app.use('/api/*', async (c, next) => {
c.set('oidcAuthJwt' as never, '')
await next()
})
app.use('/api/*', persistSessionCookie())
app.get('/api/test', (c) => c.json({ ok: true }))
const res = await app.request('/api/test')
const setCookieHeader = res.headers.get('set-cookie')
const hasOidcCookie =
setCookieHeader !== null && setCookieHeader.includes(COOKIE_NAME)
expect(hasOidcCookie).toBe(false)
})
})
})