Ghost/test/unit/server/services/url/Queue.test.js
Hannah Wolfe 0581314796
Fixed location of url service unit tests
- The url service was moved from frontend to server some time ago but the tests were forgotten
- This is only being done now because in 5.0 major changes are happening and it'll be annoying if the
  files move on that branch
2022-04-06 13:05:41 +01:00

264 lines
6.9 KiB
JavaScript

const _ = require('lodash');
const should = require('should');
const sinon = require('sinon');
const logging = require('@tryghost/logging');
const Queue = require('../../../../../core/server/services/url/Queue');
describe('Unit: services/url/Queue', function () {
let queue;
beforeEach(function () {
queue = new Queue();
sinon.spy(queue, 'run');
sinon.stub(logging, 'error');
});
afterEach(function () {
sinon.restore();
});
it('fn: register', function () {
queue.register({
event: 'chocolate'
}, null);
should.exist(queue.queue.chocolate);
queue.queue.chocolate.subscribers.length.should.eql(1);
queue.register({
event: 'chocolate'
}, null);
queue.queue.chocolate.subscribers.length.should.eql(2);
queue.register({
event: 'nachos'
}, null);
should.exist(queue.queue.chocolate);
should.exist(queue.queue.nachos);
queue.queue.chocolate.subscribers.length.should.eql(2);
queue.queue.nachos.subscribers.length.should.eql(1);
// events have not been triggered yet
queue.toNotify.should.eql({});
});
describe('fn: start (no tolerance)', function () {
it('no subscribers', function (done) {
queue.addListener('ended', function (event) {
event.should.eql('nachos');
queue.run.callCount.should.eql(1);
done();
});
queue.start({
event: 'nachos'
});
});
it('1 subscriber', function (done) {
let notified = 0;
queue.addListener('ended', function (event) {
event.should.eql('nachos');
queue.run.callCount.should.eql(2);
notified.should.eql(1);
done();
});
queue.register({
event: 'nachos'
}, function () {
notified = notified + 1;
});
queue.start({
event: 'nachos'
});
});
it('x subscriber', function (done) {
let notified = 0;
let order = [];
queue.addListener('ended', function (event) {
event.should.eql('nachos');
// 9 subscribers + start triggers run
queue.run.callCount.should.eql(10);
notified.should.eql(9);
order.should.eql([0, 1, 2, 3, 4, 5, 6, 7, 8]);
done();
});
_.each(_.range(9), function (i) {
queue.register({
event: 'nachos'
}, function () {
order.push(i);
notified = notified + 1;
});
});
queue.start({
event: 'nachos'
});
});
it('late subscriber', function (done) {
let notified = 0;
queue.addListener('ended', function (event) {
event.should.eql('nachos');
queue.run.callCount.should.eql(1);
notified.should.eql(0);
done();
});
queue.start({
event: 'nachos'
});
queue.register({
event: 'nachos'
}, function () {
notified = notified + 1;
});
});
it('subscriber throws error', function () {
queue.register({
event: 'nachos'
}, function () {
throw new Error('oops');
});
queue.start({
event: 'nachos'
});
logging.error.calledOnce.should.be.true();
queue.toNotify.nachos.notified.length.should.eql(0);
});
});
describe('fn: start (with tolerance)', function () {
it('late subscriber', function (done) {
let notified = 0;
queue.addListener('ended', function (event) {
event.should.eql('nachos');
notified.should.eql(1);
done();
});
queue.start({
event: 'nachos',
tolerance: 20,
timeoutInMS: 20
});
queue.register({
event: 'nachos',
tolerance: 20
}, function () {
notified = notified + 1;
});
});
it('start twice', function (done) {
let notified = 0;
let called = 0;
queue.addListener('ended', function (event) {
event.should.eql('nachos');
notified.should.eql(1);
called.should.eql(1);
done();
});
queue.start({
event: 'nachos',
tolerance: 20,
timeoutInMS: 20
});
queue.register({
event: 'nachos',
tolerance: 70
}, function () {
if (called !== 0) {
return done(new Error('Should only be triggered once.'));
}
called = called + 1;
notified = notified + 1;
});
queue.start({
event: 'nachos',
tolerance: 20,
timeoutInMS: 20
});
});
it('start twice', function (done) {
let notified = 0;
let called = 0;
queue.addListener('ended', function (event) {
event.should.eql('nachos');
notified.should.eql(0);
called.should.eql(0);
done();
});
queue.start({
event: 'nachos',
tolerance: 20,
timeoutInMS: 20
});
queue.start({
event: 'nachos',
tolerance: 20,
timeoutInMS: 20
});
});
it('late subscribers', function (done) {
let notified = 0;
let called = 0;
queue.addListener('ended', function (event) {
event.should.eql('nachos');
notified.should.eql(1);
called.should.eql(1);
done();
});
setTimeout(function () {
queue.register({
event: 'nachos',
tolerance: 100,
timeoutInMS: 20,
requiredSubscriberCount: 1
}, function () {
called = called + 1;
notified = notified + 1;
});
}, 500);
queue.start({
event: 'nachos',
tolerance: 60,
timeoutInMS: 20,
requiredSubscriberCount: 1
});
});
});
});