app.param.js — express Source File

Source Code

'use strict'

var express = require('../')
  , request = require('supertest');

describe('app', function(){
  describe('.param(names, fn)', function(){
    it('should map the array', function(done){
      var app = express();

      app.param(['id', 'uid'], function(req, res, next, id){
        id = Number(id);
        if (isNaN(id)) return next('route');
        req.params.id = id;
        next();
      });

      app.get('/post/:id', function(req, res){
        var id = req.params.id;
        res.send((typeof id) + ':' + id)
      });

      app.get('/user/:uid', function(req, res){
        var id = req.params.id;
        res.send((typeof id) + ':' + id)
      });

      request(app)
        .get('/user/123')
        .expect(200, 'number:123', function (err) {
          if (err) return done(err)
          request(app)
            .get('/post/123')
            .expect('number:123', done)
        })
    })
  })

  describe('.param(name, fn)', function(){
    it('should map logic for a single param', function(done){
      var app = express();

      app.param('id', function(req, res, next, id){
        id = Number(id);
        if (isNaN(id)) return next('route');
        req.params.id = id;
        next();
      });

      app.get('/user/:id', function(req, res){
        var id = req.params.id;
        res.send((typeof id) + ':' + id)
      });

      request(app)
        .get('/user/123')
        .expect(200, 'number:123', done)
    })

    it('should only call once per request', function(done) {
// ... (264 more lines)