function createTestClient(): TestClient

import { createTestClient } from '@robojs/server/testing'
import * as usersRoute from '../src/api/users/[id]'
import * as postsRoute from '../src/api/posts'

const client = createTestClient()
  .route('users/[id]', usersRoute)
  .route('posts', postsRoute)

// Make requests - params are automatically extracted from the URL
const user = await client.get('/users/123')
expect(user.status).toBe(200)
expect(await user.json()).toEqual({ id: '123' })

const posts = await client.post('/posts', { body: { title: 'Hello' } })
expect(posts.status).toBe(201)