overleaf/services/clsi/test/acceptance/js/UrlCachingTests.js

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/* eslint-disable
no-unused-vars,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
* decaffeinate suggestions:
* DS102: Remove unnecessary code created because of implicit returns
* DS207: Consider shorter variations of null checks
* Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
*/
const express = require('express')
const Path = require('path')
const Client = require('./helpers/Client')
const sinon = require('sinon')
const ClsiApp = require('./helpers/ClsiApp')
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const Server = {
run() {
const app = express()
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const staticServer = express.static(Path.join(__dirname, '../fixtures/'))
const alreadyFailed = new Map()
app.get('/fail/:times/:id', (req, res) => {
this.getFile(req.url)
const soFar = alreadyFailed.get(req.params.id) || 0
const wanted = parseInt(req.params.times, 10)
if (soFar < wanted) {
alreadyFailed.set(req.params.id, soFar + 1)
res.status(503).end()
} else {
res.send('THE CONTENT')
}
})
app.get('/:random_id/*', (req, res, next) => {
this.getFile(req.url)
req.url = `/${req.params[0]}`
return staticServer(req, res, next)
})
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Client.startFakeFilestoreApp(app)
},
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getFile() {},
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randomId() {
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return Math.random().toString(16).slice(2)
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},
}
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describe('Url Caching', function () {
Server.run()
describe('Retries', function () {
before(function (done) {
this.project_id = Client.randomId()
this.happyFile = `${Server.randomId()}/lion.png`
this.retryFileOnce = `fail/1/${Server.randomId()}`
this.retryFileTwice = `fail/2/${Server.randomId()}`
this.fatalFile = `fail/42/${Server.randomId()}`
this.request = {
resources: [
{
path: 'main.tex',
content: `\
\\documentclass{article}
\\usepackage{graphicx}
\\begin{document}
\\includegraphics{lion.png}
\\end{document}\
`,
},
{
path: 'lion.png',
url: `http://filestore/${this.happyFile}`,
},
{
path: 'foo.tex',
url: `http://filestore/${this.retryFileOnce}`,
},
{
path: 'foo.tex',
url: `http://filestore/${this.retryFileTwice}`,
},
{
path: 'foo.tex',
url: `http://filestore/${this.fatalFile}`,
},
],
}
sinon.spy(Server, 'getFile')
ClsiApp.ensureRunning(() => {
Client.compile(this.project_id, this.request, (error, res, body) => {
this.error = error
this.res = res
this.body = body
done()
})
})
})
after(function () {
Server.getFile.restore()
})
function expectNFilestoreRequests(file, count) {
Server.getFile.args.filter(a => a[0] === file).should.have.length(count)
}
it('should download the happy file once', function () {
expectNFilestoreRequests(`/${this.happyFile}`, 1)
})
it('should retry the download of the unhappy files', function () {
expectNFilestoreRequests(`/${this.retryFileOnce}`, 2)
expectNFilestoreRequests(`/${this.retryFileTwice}`, 3)
expectNFilestoreRequests(`/${this.fatalFile}`, 3)
})
})
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describe('Downloading an image for the first time', function () {
before(function (done) {
this.project_id = Client.randomId()
this.file = `${Server.randomId()}/lion.png`
this.request = {
resources: [
{
path: 'main.tex',
content: `\
\\documentclass{article}
\\usepackage{graphicx}
\\begin{document}
\\includegraphics{lion.png}
\\end{document}\
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`,
},
{
path: 'lion.png',
url: `http://filestore/${this.file}`,
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},
],
}
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sinon.spy(Server, 'getFile')
return ClsiApp.ensureRunning(() => {
return Client.compile(
this.project_id,
this.request,
(error, res, body) => {
this.error = error
this.res = res
this.body = body
return done()
}
)
})
})
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afterEach(function () {
return Server.getFile.restore()
})
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return it('should download the image', function () {
return Server.getFile.calledWith(`/${this.file}`).should.equal(true)
})
})
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describe('When an image is in the cache and the last modified date is unchanged', function () {
before(function (done) {
this.project_id = Client.randomId()
this.file = `${Server.randomId()}/lion.png`
this.request = {
resources: [
{
path: 'main.tex',
content: `\
\\documentclass{article}
\\usepackage{graphicx}
\\begin{document}
\\includegraphics{lion.png}
\\end{document}\
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`,
},
(this.image_resource = {
path: 'lion.png',
url: `http://filestore/${this.file}`,
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modified: Date.now(),
}),
],
}
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return Client.compile(
this.project_id,
this.request,
(error, res, body) => {
this.error = error
this.res = res
this.body = body
sinon.spy(Server, 'getFile')
return Client.compile(
this.project_id,
this.request,
(error1, res1, body1) => {
this.error = error1
this.res = res1
this.body = body1
return done()
}
)
}
)
})
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after(function () {
return Server.getFile.restore()
})
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return it('should not download the image again', function () {
return Server.getFile.called.should.equal(false)
})
})
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describe('When an image is in the cache and the last modified date is advanced', function () {
before(function (done) {
this.project_id = Client.randomId()
this.file = `${Server.randomId()}/lion.png`
this.request = {
resources: [
{
path: 'main.tex',
content: `\
\\documentclass{article}
\\usepackage{graphicx}
\\begin{document}
\\includegraphics{lion.png}
\\end{document}\
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`,
},
(this.image_resource = {
path: 'lion.png',
url: `http://filestore/${this.file}`,
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modified: (this.last_modified = Date.now()),
}),
],
}
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return Client.compile(
this.project_id,
this.request,
(error, res, body) => {
this.error = error
this.res = res
this.body = body
sinon.spy(Server, 'getFile')
this.image_resource.modified = new Date(this.last_modified + 3000)
return Client.compile(
this.project_id,
this.request,
(error1, res1, body1) => {
this.error = error1
this.res = res1
this.body = body1
return done()
}
)
}
)
})
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afterEach(function () {
return Server.getFile.restore()
})
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return it('should download the image again', function () {
return Server.getFile.called.should.equal(true)
})
})
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describe('When an image is in the cache and the last modified date is further in the past', function () {
before(function (done) {
this.project_id = Client.randomId()
this.file = `${Server.randomId()}/lion.png`
this.request = {
resources: [
{
path: 'main.tex',
content: `\
\\documentclass{article}
\\usepackage{graphicx}
\\begin{document}
\\includegraphics{lion.png}
\\end{document}\
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`,
},
(this.image_resource = {
path: 'lion.png',
url: `http://filestore/${this.file}`,
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modified: (this.last_modified = Date.now()),
}),
],
}
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return Client.compile(
this.project_id,
this.request,
(error, res, body) => {
this.error = error
this.res = res
this.body = body
sinon.spy(Server, 'getFile')
this.image_resource.modified = new Date(this.last_modified - 3000)
return Client.compile(
this.project_id,
this.request,
(error1, res1, body1) => {
this.error = error1
this.res = res1
this.body = body1
return done()
}
)
}
)
})
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afterEach(function () {
return Server.getFile.restore()
})
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return it('should download the other revision', function () {
return Server.getFile.called.should.equal(true)
})
})
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describe('When an image is in the cache and the last modified date is not specified', function () {
before(function (done) {
this.project_id = Client.randomId()
this.file = `${Server.randomId()}/lion.png`
this.request = {
resources: [
{
path: 'main.tex',
content: `\
\\documentclass{article}
\\usepackage{graphicx}
\\begin{document}
\\includegraphics{lion.png}
\\end{document}\
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`,
},
(this.image_resource = {
path: 'lion.png',
url: `http://filestore/${this.file}`,
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modified: (this.last_modified = Date.now()),
}),
],
}
return Client.compile(
this.project_id,
this.request,
(error, res, body) => {
this.error = error
this.res = res
this.body = body
sinon.spy(Server, 'getFile')
delete this.image_resource.modified
return Client.compile(
this.project_id,
this.request,
(error1, res1, body1) => {
this.error = error1
this.res = res1
this.body = body1
return done()
}
)
}
)
})
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afterEach(function () {
return Server.getFile.restore()
})
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return it('should download the image again', function () {
return Server.getFile.called.should.equal(true)
})
})
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return describe('After clearing the cache', function () {
before(function (done) {
this.project_id = Client.randomId()
this.file = `${Server.randomId()}/lion.png`
this.request = {
resources: [
{
path: 'main.tex',
content: `\
\\documentclass{article}
\\usepackage{graphicx}
\\begin{document}
\\includegraphics{lion.png}
\\end{document}\
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`,
},
(this.image_resource = {
path: 'lion.png',
url: `http://filestore/${this.file}`,
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modified: (this.last_modified = Date.now()),
}),
],
}
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return Client.compile(this.project_id, this.request, error => {
if (error != null) {
throw error
}
return Client.clearCache(this.project_id, (error, res, body) => {
if (error != null) {
throw error
}
sinon.spy(Server, 'getFile')
return Client.compile(
this.project_id,
this.request,
(error1, res1, body1) => {
this.error = error1
this.res = res1
this.body = body1
return done()
}
)
})
})
})
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afterEach(function () {
return Server.getFile.restore()
})
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return it('should download the image again', function () {
return Server.getFile.called.should.equal(true)
})
})
})