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Swapped image size cache with InMemoryCache

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refs https://github.com/TryGhost/Toolbox/issues/364

- The InMemoryCache is an implementation of the cache adapter interface and allows to test cache in the works which is "close to the real world". Being able to do so in tests for image sizes cache manager proves we can use other cache adapters such as Redis based ones.
This commit is contained in:
Naz 2022-08-05 17:52:14 +01:00
parent e549528985
commit 05eb719d0a
1 changed files with 20 additions and 22 deletions
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42
ghost/core/test/unit/server/lib/image/cached-image-size-from-url.test.js
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@ -2,10 +2,10 @@ const errors = require('@tryghost/errors');
const should = require('should');
const sinon = require('sinon');
const CachedImageSizeFromUrl = require('../../../../../core/server/lib/image/cached-image-size-from-url');
const InMemoryCache = require('../../../../../core/server/adapters/cache/Memory');
describe('lib/image: image size cache', function () {
let sizeOfStub;
let cachedImagedSize;
beforeEach(function () {
sizeOfStub = sinon.stub();
@ -25,9 +25,10 @@ describe('lib/image: image size cache', function () {
type: 'jpg'
});
const cacheStore = new InMemoryCache();
const cachedImageSizeFromUrl = new CachedImageSizeFromUrl({
getImageSizeFromUrl: sizeOfStub,
cache: new Map()
cache: cacheStore
});
imageSizeSpy = sizeOfStub;
@ -35,10 +36,10 @@ describe('lib/image: image size cache', function () {
await cachedImageSizeFromUrl.getCachedImageSizeFromUrl(url);
// first call to get result from `getImageSizeFromUrl`
cachedImagedSize = cachedImageSizeFromUrl.cache;
should.exist(cachedImagedSize);
cachedImagedSize.has(url).should.be.true;
const image = cachedImagedSize.get(url);
should.exist(cacheStore);
cacheStore.get(url).should.not.be.undefined;
const image = cacheStore.get(url);
should.exist(image.width);
image.width.should.be.equal(50);
should.exist(image.height);
@ -49,10 +50,9 @@ describe('lib/image: image size cache', function () {
imageSizeSpy.calledOnce.should.be.true();
imageSizeSpy.calledTwice.should.be.false();
cachedImagedSize = cachedImageSizeFromUrl.cache;
should.exist(cachedImagedSize);
cachedImagedSize.has(url).should.be.true;
const image2 = cachedImagedSize.get(url);
cacheStore.get(url).should.not.be.undefined;
const image2 = cacheStore.get(url);
should.exist(image2.width);
image2.width.should.be.equal(50);
should.exist(image2.height);
@ -64,17 +64,16 @@ describe('lib/image: image size cache', function () {
sizeOfStub.rejects('error');
const cacheStore = new InMemoryCache()
const cachedImageSizeFromUrl = new CachedImageSizeFromUrl({
getImageSizeFromUrl: sizeOfStub,
cache: new Map()
cache: cacheStore
});
await cachedImageSizeFromUrl.getCachedImageSizeFromUrl(url);
cachedImagedSize = cachedImageSizeFromUrl.cache;
should.exist(cachedImagedSize);
cachedImagedSize.has(url).should.be.true;
const image = cachedImagedSize.get(url);
cacheStore.get(url).should.not.be.undefined;
const image = cacheStore.get(url);
should.not.exist(image.width);
should.not.exist(image.height);
});
@ -84,25 +83,24 @@ describe('lib/image: image size cache', function () {
sizeOfStub.rejects(new errors.NotFoundError('it iz gone mate!'));
const cacheStore = new InMemoryCache();
const cachedImageSizeFromUrl = new CachedImageSizeFromUrl({
getImageSizeFromUrl: sizeOfStub,
cache: new Map()
cache: cacheStore
});
await cachedImageSizeFromUrl.getCachedImageSizeFromUrl(url);
cachedImagedSize = cachedImageSizeFromUrl.cache;
should.exist(cachedImagedSize);
cachedImagedSize.has(url).should.be.true;
const image = cachedImagedSize.get(url);
cacheStore.get(url).should.not.be.undefined;
const image = cacheStore.get(url);
should.not.exist(image.width);
should.not.exist(image.height);
});
it('should return null if url is undefined', async function () {
it('should return null if url is null', async function () {
const cachedImageSizeFromUrl = new CachedImageSizeFromUrl({
imageSize: {},
cache: new Map()
cache: new InMemoryCache()
});
const url = null;
let result;