process.chdir(__dirname);

var PM2 = require('../..');
var should = require('should');
var assert = require('assert')

describe('Unique ID verification', function() {
  describe('when starting', function() {
    var _id = null

    before(function(done) {
      PM2.delete('all', function() { done() });
    });

    after(function(done) {
      PM2.delete('all', function() { done() });
    });

    it('should start a script', function(done) {
      PM2.start('../fixtures/child.js', function(err) {
        should(err).be.null();
        PM2.list(function(err, list) {
          should(err).be.null();
          assert(list.length > 0)
          assert(typeof list[0].pm2_env.unique_id === 'string')
          _id = list[0].pm2_env.unique_id
          done();
        });
      });
    });

    it('should stop app by id', function(done) {
      PM2.stop(0, done);
    });

    it('should restart and not changed unique id', function(done) {
      PM2.restart(0, (err) => {
        should(err).be.null();
        PM2.list(function(err, list) {
          should(err).be.null();
          assert(list.length > 0)
          assert(typeof list[0].pm2_env.unique_id === 'string')
          assert( list[0].pm2_env.unique_id === _id)
          done();
        });
      });
    });


    it('should generate another unique id for new process', function(done) {
      PM2.start('./../fixtures/child.js', { name: 'toto' }, function(err) {
        assert(!err);
        PM2.list(function(err, list) {
          should(err).be.null();
          assert(list.length === 2)
          assert(typeof list[0].pm2_env.unique_id === 'string')
          assert(typeof list[1].pm2_env.unique_id === 'string')
          assert(list[0].pm2_env.unique_id !== typeof list[1].pm2_env.unique_id)
          done();
        });
      });
    });

    it('should duplicate a process and have a new id', function(done) {
      PM2.scale('child', 2, function(err) {
        assert(!err);
        PM2.list(function(err, list) {
          should(err).be.null();
          should(list.length).eql(3);
          assert(typeof list[0].pm2_env.unique_id === 'string')
          assert(typeof list[1].pm2_env.unique_id === 'string')
          assert(typeof list[2].pm2_env.unique_id === 'string')
          assert(list[0].pm2_env.unique_id !== typeof list[1].pm2_env.unique_id)
          assert(list[1].pm2_env.unique_id !== typeof list[2].pm2_env.unique_id)
          assert(list[0].pm2_env.unique_id !== typeof list[2].pm2_env.unique_id)
          done();
        });
      });
    });
  });
});