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const express = require('express');
const mostReadRouter = express.Router();
const mostReadBackEnd = require('../services/most-read-back-end');
const translateMostReadList = require('../services/most-read-service');

mostReadRouter.get('/', (req, res, next) => 

 let mostReadUrl = req.query.most_read_url;

 if (!mostReadUrl) 
 logger.error('param most_read_url is required');
 res.status(400).send('param most_read_url is required');
 return;
 

 let sendSucces = mostRead => 
 logger.info(`sending most read list for url: $mostReadUrl`);
 res.json(mostRead);
 ;

 let sendError = error => 
 if (isNotFoundError(error)) 
 next();
 else 
 next(error);
 
 ;

 mostReadBackEnd
 .getMostReadList(mostReadUrl)
 .then(translateMostReadList, sendError)
 .then(sendSucces, sendError)
 .catch(sendError);
);

module.exports = mostReadRouter;

const chai = require('chai');
const expect = chai;
chai.use(require('sinon-chai'));
const sinon = require('sinon');
const sandbox = sinon.createSandbox();
const proxyQuire = require('proxyquire');
const statusStub = sandbox.stub();
const sendStub = sandbox.stub();
const getMostReadListStub = sandbox.stub();
const translateStub = sandbox.stub();
const jsonStub = sandbox.stub();
const thenStub = sandbox.stub();
process.env.CONFIGURATOR_API = 'xpto';


const router = proxyQuire('../../app/routes/most-read-router', 
 '../services/most-read-back-end': 
 getMostReadList: getMostReadListStub
 ,
 '../services/most-read-service': 
 translate: translateStub
 
);

describe('MostReadRouter', () => 
 afterEach(() => sandbox.reset());

 describe('#get(request,response,next)', () => 
 it.only('should call next() when getMostReadList does not work` ', async () => 
 
 getMostReadListStub.rejects(new Error('the error'));

 let req = 
 method: 'GET',
 url: '/',
 query: 
 most_read_url: 'http://beatiful_url.com'
 
 ;

 let res = 
 json: jsonStub
 ;

 let next = sandbox.stub();
 

 await router(req, res, next);

 expect(next).to.be.calledOnce;
 );
 )
);