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

104 lines
3.0 KiB
JavaScript

// Copyright IBM Corp. 2013,2019. 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
// This test written in mocha+should.js
'use strict';
/* global getSchema:false */
const should = require('./init.js');
const db = getSchema();
describe('defaults', function() {
let Server;
before(function() {
Server = db.define('Server', {
host: String,
port: {type: Number, default: 80},
createdAt: {type: Date, default: '$now'},
});
});
it('should apply defaults on new', function() {
const s = new Server;
s.port.should.equal(80);
});
it('should apply defaults on create', function(done) {
Server.create(function(err, s) {
s.port.should.equal(80);
done();
});
});
it('should NOT apply defaults on read', function(done) {
db.defineProperty('Server', 'host', {
type: String,
default: 'localhost',
});
Server.all(function(err, servers) {
should(servers[0].host).be.undefined();
done();
});
});
it('should ignore defaults with limited fields', function(done) {
Server.create({host: 'localhost', port: 8080}, function(err, s) {
should.not.exist(err);
s.port.should.equal(8080);
Server.findById(s.id, {fields: ['host']}, function(err, server) {
server.should.have.property('host', 'localhost');
server.should.have.property('port', undefined);
done();
});
});
});
it('should apply defaults in upsert create', function(done) {
Server.upsert({port: 8181}, function(err, server) {
should.not.exist(err);
should.exist(server.createdAt);
done();
});
});
it('should preserve defaults in upsert update', function(done) {
Server.findOne({}, function(err, server) {
Server.upsert({id: server.id, port: 1337}, function(err, s) {
should.not.exist(err);
(Number(1337)).should.equal(s.port);
server.createdAt.should.eql(s.createdAt);
done();
});
});
});
context('applyDefaultOnWrites', function() {
it('does not affect default behavior when not set', async () => {
const Apple = db.define('Apple', {
color: {type: String, default: 'red'},
taste: {type: String, default: 'sweet'},
}, {applyDefaultsOnReads: false});
const apple = await Apple.create();
apple.color.should.equal('red');
apple.taste.should.equal('sweet');
});
it('removes the property when set to `false`', async () => {
const Apple = db.define('Apple', {
color: {type: String, default: 'red', applyDefaultOnWrites: false},
taste: {type: String, default: 'sweet'},
}, {applyDefaultsOnReads: false});
const apple = await Apple.create({color: 'red', taste: 'sweet'});
const found = await Apple.findById(apple.id);
should(found.color).be.undefined();
found.taste.should.equal('sweet');
});
});
});