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7c18263227
refs https://github.com/TryGhost/Toolbox/issues/515 - This implementation allows to use Redis cluster as a caching adapter. The cache adapter can be configured through same adapter configuration interface as others. It accepts following config values: - "ttl" - time in SECONDS for stored entity to live in Redis cache - "keyPrefix" - special cache key prefix to use with stored entities - "host" / "port" / "password" / "clusterConfig" - Redis instance specific configs - Set test coverage to non-standard 75% because the code mostly consists of the glue code that would require unnecessary Redis server mocking and would be a bad ROI. This module has been used in production for a long time already, so can be considered pretty stable.
86 lines
2.6 KiB
JavaScript
86 lines
2.6 KiB
JavaScript
const assert = require('assert');
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const sinon = require('sinon');
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const RedisCache = require('../index');
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describe('Adapter Cache Redis', function () {
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afterEach(function () {
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sinon.restore();
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});
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it('can initialize Redis cache instance directly', async function () {
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const redisCacheInstanceStub = {
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store: {
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getClient: sinon.stub().returns({
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on: sinon.stub()
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})
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}
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};
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const cache = new RedisCache({
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cache: redisCacheInstanceStub
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});
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assert.ok(cache);
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});
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describe('get', function () {
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it('can get a value from the cache', async function () {
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const redisCacheInstanceStub = {
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get: sinon.stub().resolves('value from cache'),
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store: {
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getClient: sinon.stub().returns({
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on: sinon.stub()
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})
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}
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};
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const cache = new RedisCache({
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cache: redisCacheInstanceStub
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});
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const value = await cache.get('key');
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assert.equal(value, 'value from cache');
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});
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});
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describe('set', function () {
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it('can set a value in the cache', async function () {
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const redisCacheInstanceStub = {
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set: sinon.stub().resolvesArg(1),
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store: {
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getClient: sinon.stub().returns({
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on: sinon.stub()
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})
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}
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};
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const cache = new RedisCache({
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cache: redisCacheInstanceStub
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});
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const value = await cache.set('key-here', 'new value');
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assert.equal(value, 'new value');
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assert.equal(redisCacheInstanceStub.set.args[0][0], 'key-here');
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});
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it('sets a key based on keyPrefix', async function () {
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const redisCacheInstanceStub = {
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set: sinon.stub().resolvesArg(1),
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store: {
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getClient: sinon.stub().returns({
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on: sinon.stub()
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})
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}
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};
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const cache = new RedisCache({
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cache: redisCacheInstanceStub,
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keyPrefix: 'testing-prefix:'
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});
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const value = await cache.set('key-here', 'new value');
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assert.equal(value, 'new value');
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assert.equal(redisCacheInstanceStub.set.args[0][0], 'testing-prefix:key-here');
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});
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});
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});
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