loopback/test/change-stream.test.js

96 lines
2.6 KiB
JavaScript

// Copyright IBM Corp. 2015,2016. All Rights Reserved.
// Node module: loopback
// This file is licensed under the MIT License.
// License text available at https://opensource.org/licenses/MIT
describe('PersistedModel.createChangeStream()', function() {
describe('configured to source changes locally', function() {
before(function() {
var test = this;
var app = loopback({ localRegistry: true });
var ds = app.dataSource('ds', { connector: 'memory' });
this.Score = app.model('Score', {
dataSource: 'ds',
changeDataSource: false, // use only local observers
});
});
it('should detect create', function(done) {
var Score = this.Score;
Score.createChangeStream(function(err, changes) {
changes.on('data', function(change) {
expect(change.type).to.equal('create');
changes.destroy();
done();
});
Score.create({ team: 'foo' });
});
});
it('should detect update', function(done) {
var Score = this.Score;
Score.create({ team: 'foo' }, function(err, newScore) {
Score.createChangeStream(function(err, changes) {
changes.on('data', function(change) {
expect(change.type).to.equal('update');
changes.destroy();
done();
});
newScore.updateAttributes({
bat: 'baz',
});
});
});
});
it('should detect delete', function(done) {
var Score = this.Score;
Score.create({ team: 'foo' }, function(err, newScore) {
Score.createChangeStream(function(err, changes) {
changes.on('data', function(change) {
expect(change.type).to.equal('remove');
changes.destroy();
done();
});
newScore.remove();
});
});
});
});
// TODO(ritch) implement multi-server support
describe.skip('configured to source changes using pubsub', function() {
before(function() {
var test = this;
var app = loopback({ localRegistry: true });
var db = app.dataSource('ds', { connector: 'memory' });
var ps = app.dataSource('ps', {
host: 'localhost',
port: '12345',
connector: 'pubsub',
pubsubAdapter: 'mqtt',
});
this.Score = app.model('Score', {
dataSource: 'db',
changeDataSource: 'ps',
});
});
it('should detect a change', function(done) {
var Score = this.Score;
Score.createChangeStream(function(err, changes) {
changes.on('data', function(change) {
done();
});
});
});
});
});