Ghost/ghost/event-aware-cache-wrapper/test/EventAwareCacheWrapper.test.js
Hannah Wolfe 6161f94910
Updated to use assert/strict everywhere (#17047)
refs: https://github.com/TryGhost/Toolbox/issues/595

We're rolling out new rules around the node assert library, the first of which is enforcing the use of assert/strict. This means we don't need to use the strict version of methods, as the standard version will work that way by default.

This caught some gotchas in our existing usage of assert where the lack of strict mode had unexpected results:
- Url matching needs to be done on `url.href` see aa58b354a4
- Null and undefined are not the same thing,  there were a few cases of this being confused
- Particularly questionable changes in [PostExporter tests](c1a468744b) tracked [here](https://github.com/TryGhost/Team/issues/3505).
- A typo see eaac9c293a

Moving forward, using assert strict should help us to catch unexpected behaviour, particularly around nulls and undefineds during implementation.
2023-06-21 09:56:59 +01:00

61 lines
1.9 KiB
JavaScript

const assert = require('assert/strict');
const InMemoryCache = require('@tryghost/adapter-cache-memory-ttl');
const EventAwareCacheWrapper = require('../index');
const {EventEmitter} = require('stream');
const sleep = ms => (
new Promise((resolve) => {
setTimeout(resolve, ms);
})
);
describe('EventAwareCacheWrapper', function () {
it('Can initialize', function () {
const cache = new InMemoryCache();
const wrappedCache = new EventAwareCacheWrapper({
cache
});
assert.ok(wrappedCache);
});
describe('get', function () {
it('calls a wrapped cache with extra key', async function () {
const cache = new InMemoryCache();
const lastReset = Date.now();
const wrapper = new EventAwareCacheWrapper({
cache: cache,
lastReset: lastReset
});
await wrapper.set('a', 'b');
assert.equal(await wrapper.get('a'), 'b');
assert.equal(await cache.get(`${lastReset}:a`), 'b');
});
});
describe('listens to reset events', function () {
it('resets the cache when reset event is triggered', async function () {
const cache = new InMemoryCache();
const lastReset = Date.now();
const eventRegistry = new EventEmitter();
const wrapper = new EventAwareCacheWrapper({
cache: cache,
lastReset: lastReset,
resetEvents: ['site.changed'],
eventRegistry: eventRegistry
});
await wrapper.set('a', 'b');
assert.equal(await wrapper.get('a'), 'b');
// let the time tick to get new lastReset
await sleep(100);
eventRegistry.emit('site.changed');
assert.equal(await wrapper.get('a'), undefined);
});
});
});