express-http-proxy/test/port.js

http proxy middleware for express

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

function proxyTarget(port) {
  'use strict';

  var other = express();
  other.get('/', function(req, res) {
    res.send('Success');
  });
  return other.listen(port);
}

describe('proxies to requested port', function() {
  'use strict';

  var other, http;
  beforeEach(function() {
    http = express();
    other = proxyTarget(8080);
  });

  afterEach(function() {
    other.close();
  });


  function assertSuccess(server, done) {
    request(http)
      .get('/')
      .expect(200)
      .end(function(err, res) {
        if (err) { return done(err); }
        assert(res.text === 'Success');
        done();
      });
  }

  describe('when host is a String', function() {
    it('when passed as an option', function(done) {

      http.use(proxy('http://localhost', {
        port: 8080
      }));

      assertSuccess(http, done);
    });

    it('when passed on the host string', function(done) {

      http.use(proxy('http://localhost:8080'));

      assertSuccess(http, done);
    });

  });

  describe('when host is a function', function() {


    it('and port is on the String returned', function(done) {

      http.use(proxy(
          function() { return 'http://localhost:8080'; }
      ));

      assertSuccess(http, done);
    });

    it('and port passed as an option', function(done) {

      http.use(proxy(
        function() { return 'http://localhost'; },
        { port: 8080 }
      ));

      assertSuccess(http, done);
    });
  });

});