process.env.NODE_ENV = 'test';

let mongoose = require('mongoose');
let Book = require('../models/book');


// les dependencies pour le dev
/*
Avoir chai
Avoir chai http
Avoir should
*/
chai = require('chai')
chaiHttp = require('chai-http')
server = require('../app')
should = chai.should();

chai.use(chaiHttp);

describe('Books', () => {
  beforeEach((done) => { // Avant chaque test tu vas vider la database
    Book.remove({}, (err) => {
      done()
    })
  })

describe('/GET book', () => {
  it('should GET return all books', (done) => {
    chai.request(server)
      .get('/book')
      .end((err, res) => {
        res.should.have.status(200);
        res.body.should.be.a('array');
        res.body.length.should.be.eql(0);
      done();
      });
    });
  });

  describe('/POST book' , () => {
    it('it should not POST a book without pages field', (done) => {
      let book = {
          title: "The Lord of the Rings",
          author: "J.R.R. Tolkien",
          year: 1954
      }
      chai.request(server)
          .post('/book')
          .send(book)
          .end((err, res) => {
              res.should.have.status(200);
              res.body.should.be.a('object');
              res.body.should.have.property('errors');
              res.body.errors.should.have.property('pages');
              res.body.errors.pages.should.have.property('kind').eql('required');
            done();
          });
    });
    it('should POST a book', (done) => {
      let book = {
        title: "The Lord of the Rings",
        author: "J.R.R. Tolkien",
        year: 1954,
        pages: 1170
    }
    chai.request(server)
      .post('/book')
      .send(book)
      .end((err, res) => {
        res.should.have.status(200);
        res.body.should.be.a('object');
        res.body.should.have.property('message').eql('Book successfully added!');
        res.body.book.should.have.property('title');
        res.body.book.should.have.property('author');
        res.body.book.should.have.property('pages');
        res.body.book.should.have.property('year');
        done();
      })
    })
  })

});