Ghost/ghost/job-manager/test/job-manager.test.js
Naz 6b2494a5bc Bumped bree to 6.2.0
refs 55060e323c

- This bump was meant to be done when the referenced changes landed. Without it parts of worker thread messages are lost
2021-03-03 12:26:37 +13:00

308 lines
11 KiB
JavaScript

// Switch these lines once there are useful utils
// const testUtils = require('./utils');
require('./utils');
const path = require('path');
const sinon = require('sinon');
const delay = require('delay');
const FakeTimers = require('@sinonjs/fake-timers');
const JobManager = require('../index');
describe('Job Manager', function () {
let logging;
beforeEach(function () {
logging = {
info: sinon.stub(),
warn: sinon.stub(),
error: sinon.stub()
};
});
it('public interface', function () {
const jobManager = new JobManager({logging});
should.exist(jobManager.addJob);
});
describe('Add a job', function () {
describe('Inline jobs', function () {
it('adds a job to a queue', async function () {
const spy = sinon.spy();
const jobManager = new JobManager({logging});
jobManager.addJob({
job: spy,
data: 'test data',
offloaded: false
});
should(jobManager.queue.idle()).be.false();
// give time to execute the job
await delay(1);
should(jobManager.queue.idle()).be.true();
should(spy.called).be.true();
should(spy.args[0][0]).equal('test data');
});
it('handles failed job gracefully', async function () {
const spy = sinon.stub().throws();
const jobManager = new JobManager({logging});
jobManager.addJob({
job: spy,
data: 'test data',
offloaded: false
});
should(jobManager.queue.idle()).be.false();
// give time to execute the job
await delay(1);
should(jobManager.queue.idle()).be.true();
should(spy.called).be.true();
should(spy.args[0][0]).equal('test data');
should(logging.error.called).be.true();
});
});
describe('Offloaded jobs', function () {
it('fails to schedule for invalid scheduling expression', function () {
const jobManager = new JobManager({logging});
try {
jobManager.addJob({
at: 'invalid expression',
name: 'jobName'
});
} catch (err) {
err.message.should.equal('Invalid schedule format');
}
});
it('fails to schedule for no job name', function () {
const jobManager = new JobManager({logging});
try {
jobManager.addJob({
at: 'invalid expression',
job: () => {}
});
} catch (err) {
err.message.should.equal('Name parameter should be present if job is a function');
}
});
it('schedules a job using date format', async function () {
const jobManager = new JobManager({logging});
const timeInTenSeconds = new Date(Date.now() + 10);
const jobPath = path.resolve(__dirname, './jobs/simple.js');
const clock = FakeTimers.install({now: Date.now()});
jobManager.addJob({
at: timeInTenSeconds,
job: jobPath,
name: 'job-in-ten'
});
should(jobManager.bree.timeouts['job-in-ten']).type('object');
should(jobManager.bree.workers['job-in-ten']).type('undefined');
// allow to run the job and start the worker
await clock.nextAsync();
should(jobManager.bree.workers['job-in-ten']).type('object');
const promise = new Promise((resolve, reject) => {
jobManager.bree.workers['job-in-ten'].on('error', reject);
jobManager.bree.workers['job-in-ten'].on('exit', (code) => {
should(code).equal(0);
resolve();
});
});
// allow job to finish execution and exit
clock.next();
await promise;
should(jobManager.bree.workers['job-in-ten']).type('undefined');
clock.uninstall();
});
it('schedules a job to run immediately', async function () {
const jobManager = new JobManager({logging});
const clock = FakeTimers.install({now: Date.now()});
const jobPath = path.resolve(__dirname, './jobs/simple.js');
jobManager.addJob({
job: jobPath,
name: 'job-now'
});
should(jobManager.bree.timeouts['job-now']).type('object');
// allow scheduler to pick up the job
clock.tick(1);
should(jobManager.bree.workers['job-now']).type('object');
const promise = new Promise((resolve, reject) => {
jobManager.bree.workers['job-now'].on('error', reject);
jobManager.bree.workers['job-now'].on('exit', (code) => {
should(code).equal(0);
resolve();
});
});
await promise;
should(jobManager.bree.workers['job-now']).type('undefined');
clock.uninstall();
});
it('fails to schedule a job with the same name to run immediately one after another', async function () {
const jobManager = new JobManager({logging});
const clock = FakeTimers.install({now: Date.now()});
const jobPath = path.resolve(__dirname, './jobs/simple.js');
jobManager.addJob({
job: jobPath,
name: 'job-now'
});
should(jobManager.bree.timeouts['job-now']).type('object');
// allow scheduler to pick up the job
clock.tick(1);
should(jobManager.bree.workers['job-now']).type('object');
const promise = new Promise((resolve, reject) => {
jobManager.bree.workers['job-now'].on('error', reject);
jobManager.bree.workers['job-now'].on('exit', (code) => {
should(code).equal(0);
resolve();
});
});
await promise;
should(jobManager.bree.workers['job-now']).type('undefined');
(() => {
jobManager.addJob({
job: jobPath,
name: 'job-now'
});
}).should.throw('Job #1 has a duplicate job name of job-now');
clock.uninstall();
});
it('uses custom error handler when job fails', async function (){
let job = function namedJob() {
throw new Error('job error');
};
const spyHandler = sinon.spy();
const jobManager = new JobManager({logging, errorHandler: spyHandler});
jobManager.addJob({
job,
name: 'will-fail'
});
// give time to execute the job
// has to be this long because in Node v10 the communication is
// done through processes, which takes longer comparing to worker_threads
// can be reduced to 100 when Node v10 support is dropped
await delay(600);
should(spyHandler.called).be.true();
should(spyHandler.args[0][0].message).equal('job error');
should(spyHandler.args[0][1].name).equal('will-fail');
});
it('uses worker message handler when job sends a message', async function (){
const workerMessageHandlerSpy = sinon.spy();
const jobManager = new JobManager({logging, workerMessageHandler: workerMessageHandlerSpy});
jobManager.addJob({
job: path.resolve(__dirname, './jobs/message.js'),
name: 'will-send-msg'
});
jobManager.bree.run('will-send-msg');
jobManager.bree.workers['will-send-msg'].postMessage('hello from Ghost!');
// Give time for worker (worker thread) <-> parent process (job manager) communication
await delay(1000);
should(workerMessageHandlerSpy.called).be.true();
should(workerMessageHandlerSpy.args[0][0].name).equal('will-send-msg');
should(workerMessageHandlerSpy.args[0][0].message).equal('Worker received: hello from Ghost!');
});
});
});
describe('Remove a job', function () {
it('removes a scheduled job from the queue', async function () {
const jobManager = new JobManager({logging});
const timeInTenSeconds = new Date(Date.now() + 10);
const jobPath = path.resolve(__dirname, './jobs/simple.js');
jobManager.addJob({
at: timeInTenSeconds,
job: jobPath,
name: 'job-in-ten'
});
jobManager.bree.config.jobs[0].name.should.equal('job-in-ten');
await jobManager.removeJob('job-in-ten');
should(jobManager.bree.config.jobs[0]).be.undefined;
});
});
describe('Shutdown', function () {
it('gracefully shuts down an inline jobs', async function () {
const jobManager = new JobManager({logging});
jobManager.addJob({
job: require('./jobs/timed-job'),
data: 200,
offloaded: false
});
should(jobManager.queue.idle()).be.false();
await jobManager.shutdown();
should(jobManager.queue.idle()).be.true();
});
it('gracefully shuts down an interval job', async function () {
const jobManager = new JobManager({logging});
jobManager.addJob({
at: 'every 5 seconds',
job: path.resolve(__dirname, './jobs/graceful.js')
});
await delay(1); // let the job execution kick in
should(Object.keys(jobManager.bree.workers).length).equal(0);
should(Object.keys(jobManager.bree.timeouts).length).equal(0);
should(Object.keys(jobManager.bree.intervals).length).equal(1);
await jobManager.shutdown();
should(Object.keys(jobManager.bree.intervals).length).equal(0);
});
});
});