var xssFilter = require('..')
  
  var connect = require('connect')
  var request = require('supertest')
  var rfile = require('rfile')
  var each = require('async').each
  var assert = require('assert')
  
  describe('x-xss-protection', function () {
    function grabList (filename) {
      return rfile(filename)
        .split('
  ')
        .filter(function (line) {
          return line.trim() !== ''
        })
    }
  
    var enabledBrowsers = grabList('./enabled_browser_list.txt')
    var disabledBrowsers = grabList('./disabled_browser_list.txt')
  
    var app
    beforeEach(function () {
      app = connect()
      app.use(xssFilter())
      app.use(function (req, res) {
        res.end('Hello world!')
      })
    })
  
    it('enables it for supported browsers', function (done) {
      each(enabledBrowsers, function (useragent, callback) {
        request(app).get('/').set('User-Agent', useragent)
          .expect('X-XSS-Protection', '1; mode=block', callback)
      }, done)
    })
  
    it('disables it for unsupported browsers', function (done) {
      each(disabledBrowsers, function (useragent, callback) {
        request(app).get('/').set('User-Agent', useragent)
          .expect('X-XSS-Protection', '0', callback)
      }, done)
    })
  
    it('sets header if there is an empty user-agent', function (done) {
      request(app).get('/').set('User-Agent', '')
        .expect('X-XSS-Protection', '1; mode=block', done)
    })
  
    it('sets header if there is no user-agent', function (done) {
      request(app).get('/').unset('User-Agent')
        .expect('X-XSS-Protection', '1; mode=block', done)
    })
  
    it('allows you to force the header for unsupported browsers', function (done) {
      app = connect()
      app.use(xssFilter({ setOnOldIE: true }))
      app.use(function (req, res) {
        res.end('Hello world!')
      })
      each(disabledBrowsers, function (useragent, callback) {
        request(app).get('/').set('User-Agent', useragent)
          .expect('X-XSS-Protection', '1; mode=block', callback)
      }, done)
    })
  
    it('names its function and middleware', function () {
      assert.equal(xssFilter.name, 'xXssProtection')
      assert.equal(xssFilter().name, 'xXssProtection')
    })
  })