###
Module dependencies.
###

rewire = require 'rewire'
httpErrorResponse = rewire '../libs/http-errors'

fsMock = require './mocks/fs.mock'

httpErrorResponse.__set__ 'fs', fsMock


describe 'Lib', ->

  describe '#httpErrorResponse()', ->

    it 'should exist as a public function', (done) ->

      httpErrorResponse.should.be.a.Function
      done()

    it 'should throw an error if res was not passed as parameter', (done) ->

      httpErrorResponse.bind(null).should.throw '"res" parameter is required'
      done()

    it 'should throw an error if statusCode was not passed as parameter', (done) ->

      res = {}

      httpErrorResponse.bind(null, res).should.throw '"statusCode" parameter is required'
      done()

    it 'should return a function', (done) ->

      res = {}
      statusCode = 404

      notFoundErrorResponse = httpErrorResponse res, statusCode

      notFoundErrorResponse.should.be.a.Function
      done()

    describe 'Response function', ->

      # Silences console.warns for testing
      console.warn = ->

      it 'should throw an error if body was not passed as parameter', (done) ->

        res = {}
        statusCode = 404

        notFoundErrorResponse = httpErrorResponse res, statusCode

        notFoundErrorResponse.bind(null).should.throw '"body" parameter is required'
        done()

      it 'should throw an error if cookie was not passed as parameter', (done) ->

        res = {}
        statusCode = 404

        body = ''

        notFoundErrorResponse = httpErrorResponse res, statusCode

        notFoundErrorResponse.bind(null, body).should.throw '"cookie" parameter is required'
        done()

      it 'should change response status code', (done) ->

        res =
          statusCode: 0
          write: ->
          end: ->

        statusCode = 404

        notFoundErrorResponse = httpErrorResponse res, statusCode
        notFoundErrorResponse res, statusCode

        res.statusCode.should.be.equal 404
        done()

      it 'shoul output the error page in the response object', (done) ->

        res =
          statusCode: 0
          end: ->
          write: (page) ->
            page.should.be.a.String
            page.should.be.equal 'html-mock'
            done()

        statusCode = 404

        notFoundErrorResponse = httpErrorResponse res, statusCode
        notFoundErrorResponse res, statusCode

      it 'should send response', (done) ->

        res =
          statusCode: 0
          write: ->
          end: ->
            done()

        statusCode = 404

        notFoundErrorResponse = httpErrorResponse res, statusCode
        notFoundErrorResponse res, statusCode

      it 'should render page from custom path if passed as parameter', (done) ->

        res =
          statusCode: 0
          end: ->
          write: (page) ->
            page.should.be.a.String
            page.should.be.equal 'custom-path'
            done()

        statusCode = 404
        customPath = 'custom/path.html'

        notFoundErrorResponse = httpErrorResponse res, statusCode, customPath
        notFoundErrorResponse res, statusCode

      it 'should send a fallback error if no page was found', (done)  ->

        res =
          end: ->
          write: (page) ->
            page.should.be.a.String
            page.should.be.equal 'Error 403: Unauthorized access for auth cookie 1'
            done()

        statusCode = 403

        notFoundErrorResponse = httpErrorResponse res, statusCode, 'FORCE_ERROR'
        notFoundErrorResponse res, 1