loopback-datasource-juggler/test/datatype.test.js

// This test written in mocha+should.js
var should = require('./init.js');

var db, Model;

describe('datatypes', function () {

  before(function (done) {
    db = getSchema();
    Model = db.define('Model', {
      str: String,
      date: Date,
      num: Number,
      bool: Boolean,
      list: {type: []},
    });
    db.automigrate(function () {
      Model.destroyAll(done);
    });
  });

  it('should keep types when get read data from db', function (done) {
    var d = new Date, id;

    Model.create({
      str: 'hello', date: d, num: '3', bool: 1, list: ['test']
    }, function (err, m) {
      should.not.exist(err);
      should.exist(m && m.id);
      m.str.should.be.a('string');
      m.num.should.be.a('number');
      m.bool.should.be.a('boolean');
      id = m.id;
      testFind(testAll);
    });

    function testFind(next) {
      debugger;
      Model.findById(id, function (err, m) {
        should.not.exist(err);
        should.exist(m);
        m.str.should.be.a('string');
        m.num.should.be.a('number');
        m.bool.should.be.a('boolean');
        m.date.should.be.an.instanceOf(Date);
        m.date.toString().should.equal(d.toString(), 'Time must match');
        next();
      });
    }

    function testAll() {
      Model.findOne(function (err, m) {
        should.not.exist(err);
        should.exist(m);
        m.str.should.be.a('string');
        m.num.should.be.a('number');
        m.bool.should.be.a('boolean');
        m.date.should.be.an.instanceOf(Date);
        m.date.toString().should.equal(d.toString(), 'Time must match');
        done();
      });
    }

  });

});