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93c6abcad5
closes TryGhost/Team#2094 This value can be used for non-crucial data with a `public` option. For example: `public, max-age=1, stale-while-revalidate=9`. The idea behind this option is that the browser would cache the value for the number of seconds in `max-age` and would use it for the number of seconds in `stale-while-revalidate` until it gets a "validated response" from the server. The behaviour should be almost unnoticeable for the end user but would make a big difference in the amount of requests to server.
94 lines
3.3 KiB
JavaScript
94 lines
3.3 KiB
JavaScript
const should = require('should');
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const sinon = require('sinon');
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const cacheControl = require('../');
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describe('Cache-Control middleware', function () {
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let res;
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beforeEach(function () {
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res = {
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set: sinon.spy()
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};
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});
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afterEach(function () {
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sinon.restore();
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});
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it('correctly sets the public profile headers', function (done) {
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cacheControl('public')(null, res, function (a) {
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should.not.exist(a);
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res.set.calledOnce.should.be.true();
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res.set.calledWith({'Cache-Control': 'public, max-age=0'}).should.be.true();
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done();
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});
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});
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it('correctly sets the public profile headers with custom maxAge', function (done) {
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cacheControl('public', {maxAge: 123456})(null, res, function (a) {
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should.not.exist(a);
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res.set.calledOnce.should.be.true();
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res.set.calledWith({'Cache-Control': 'public, max-age=123456'}).should.be.true();
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done();
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});
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});
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it('correctly sets the public profile headers with staleWhileRevalidate', function (done) {
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cacheControl('public', {maxAge: 1, staleWhileRevalidate: 9})(null, res, function (a) {
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should.not.exist(a);
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res.set.calledOnce.should.be.true();
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res.set.calledWith({'Cache-Control': 'public, max-age=1, stale-while-revalidate=9'}).should.be.true();
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done();
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});
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});
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it('correctly sets the private profile headers', function (done) {
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cacheControl('private')(null, res, function (a) {
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should.not.exist(a);
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res.set.calledOnce.should.be.true();
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res.set.calledWith({
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'Cache-Control': 'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0'
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}).should.be.true();
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done();
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});
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});
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it('will not set headers without a profile', function (done) {
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cacheControl()(null, res, function (a) {
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should.not.exist(a);
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res.set.called.should.be.false();
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done();
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});
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});
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it('will not get confused between serving public and private', function (done) {
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const publicCC = cacheControl('public');
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const privateCC = cacheControl('private');
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publicCC(null, res, function () {
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res.set.calledOnce.should.be.true();
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res.set.calledWith({'Cache-Control': 'public, max-age=0'}).should.be.true();
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privateCC(null, res, function () {
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res.set.calledTwice.should.be.true();
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res.set.calledWith({
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'Cache-Control': 'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0'
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}).should.be.true();
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publicCC(null, res, function () {
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res.set.calledThrice.should.be.true();
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res.set.calledWith({'Cache-Control': 'public, max-age=0'});
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privateCC(null, res, function () {
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res.set.calledWith({
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'Cache-Control': 'no-cache, private, no-store, must-revalidate, max-stale=0, post-check=0, pre-check=0'
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}).should.be.true();
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done();
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});
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});
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});
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});
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});
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});
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