ReqBaseUrl.mjs

'use strict'

import { describe, it } from 'node:test'
import express from '../lib/express.js'
import request from 'supertest'

describe('req', () => {
  describe('.baseUrl', () => {
    it('should be empty for top-level route', (t, done) => {
      const app = express()

      app.get('/:a', (req, res) => {
        res.end(req.baseUrl)
      })

      request(app)
      .get('/foo')
      .expect(200, '', done)
    })

    it('should contain lower path', (t, done) => {
      const app = express()
      const sub = express.Router()

      sub.get('/:b', (req, res) => {
        res.end(req.baseUrl)
      })
      app.use('/:a', sub.handle.bind(sub))

      request(app)
      .get('/foo/bar')
      .expect(200, '/foo', done)
    })

    it('should contain full lower path', (t, done) => {
      const app = express()
      const sub1 = express.Router()
      const sub2 = express.Router()
      const sub3 = express.Router()

      sub3.get('/:d', (req, res) => {
        res.end(req.baseUrl)
      })
      sub2.use('/:c', sub3.handle.bind(sub3))
      sub1.use('/:b', sub2.handle.bind(sub2))
      app.use('/:a', sub1.handle.bind(sub1))

      request(app)
      .get('/foo/bar/baz/zed')
      .expect(200, '/foo/bar/baz', done)
    })

    it('should travel through routers correctly', (t, done) => {
      const urls = []
      const app = express()
      const sub1 = express.Router()
      const sub2 = express.Router()
      const sub3 = express.Router()

      sub3.get('/:d', (req, res, next) => {
        urls.push('0@' + req.baseUrl)
        next()
      })
      sub2.use('/:c', sub3.handle.bind(sub3))
      sub1.use('/', (req, res, next) => {
        urls.push('1@' + req.baseUrl)
        next()
      })
      sub1.use('/bar', sub2.handle.bind(sub2))
      sub1.use('/bar', (req, res, next) => {
        urls.push('2@' + req.baseUrl)
        next()
      })
      app.use((req, res, next) => {
        urls.push('3@' + req.baseUrl)
        next()
      })
      app.use('/:a', sub1.handle.bind(sub1))
      app.use((req, res, next) => {
        urls.push('4@' + req.baseUrl)
        res.end(urls.join(','))
      })

      request(app)
      .get('/foo/bar/baz/zed')
      .expect(200, '3@,1@/foo,0@/foo/bar/baz,2@/foo/bar,4@', done)
    })
  })
})