var hidePoweredBy = require('..')
  
  var connect = require('connect')
  var request = require('supertest')
  var assert = require('assert')
  
  describe('hidePoweredBy', function () {
    function test (name, options) {
      it(name, function (done) {
        var app = connect()
        app.use(function (req, res, next) {
          res.setHeader('X-Powered-By', 'Computers')
          next()
        })
        app.use(options.middleware)
        app.use(function (req, res) {
          res.end('Hello world!')
        })
        request(app).get('/')
          .end(function (err, res) {
            if (err) {
              done(err)
              return
            }
            assert.equal(res.header['x-powered-by'], options.shouldBe)
            done()
          })
      })
    }
  
    it('works even if no header is set', function (done) {
      var app = connect()
      app.use(hidePoweredBy())
      app.use(function (req, res) {
        res.end('Hello world!')
      })
      request(app).get('/')
        .end(function (err, res) {
          if (err) {
            done(err)
            return
          }
          assert.equal(res.header['x-powered-by'], undefined)
          done()
        })
    })
  
    test('removes the X-Powered-By header', {
      middleware: hidePoweredBy(),
      shouldBe: undefined
    })
  
    test('allows you to explicitly set the header', {
      middleware: hidePoweredBy({ setTo: 'steampowered' }),
      shouldBe: 'steampowered'
    })
  
    it('names its function and middleware', function () {
      assert.equal(hidePoweredBy.name, 'hidePoweredBy')
      assert.equal(hidePoweredBy().name, 'hidePoweredBy')
    })
  })