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

// Copyright IBM Corp. 2014,2019. All Rights Reserved.
// Node module: loopback-datasource-juggler
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT

'use strict';
const jdb = require('../');
const DataSource = jdb.DataSource;
const assert = require('assert');
const async = require('async');
const should = require('./init.js');

let db, TransientModel, Person, Widget, Item;

const getTransientDataSource = function(settings) {
  return new DataSource('transient', settings);
};

describe('Transient connector', function() {
  before(function() {
    db = getTransientDataSource();
    TransientModel = db.define('TransientModel', {}, {idInjection: false});

    Person = TransientModel.extend('Person', {name: String});
    Person.attachTo(db);

    Widget = db.define('Widget', {name: String});
    Item = db.define('Item', {
      id: {type: Number, id: true}, name: String,
    });
  });

  it('should respect idInjection being false', function(done) {
    should.not.exist(Person.definition.properties.id);
    should.exist(Person.definition.properties.name);

    Person.create({name: 'Wilma'}, function(err, inst) {
      should.not.exist(err);
      inst.toObject().should.eql({name: 'Wilma'});

      Person.count(function(err, count) {
        should.not.exist(err);
        count.should.equal(0);
        done();
      });
    });
  });

  it('should generate a random string id', function(done) {
    should.exist(Widget.definition.properties.id);
    should.exist(Widget.definition.properties.name);

    Widget.definition.properties.id.type.should.equal(String);

    Widget.create({name: 'Thing'}, function(err, inst) {
      should.not.exist(err);
      inst.id.should.match(/^[0-9a-fA-F]{24}$/);
      inst.name.should.equal('Thing');

      Widget.findById(inst.id, function(err, widget) {
        should.not.exist(err);
        should.not.exist(widget);
        done();
      });
    });
  });

  it('should generate a random number id', function(done) {
    should.exist(Item.definition.properties.id);
    should.exist(Item.definition.properties.name);

    Item.definition.properties.id.type.should.equal(Number);

    Item.create({name: 'Example'}, function(err, inst) {
      should.not.exist(err);
      inst.name.should.equal('Example');

      Item.count(function(err, count) {
        should.not.exist(err);
        count.should.equal(0);
        done();
      });
    });
  });
});