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docs/tests/unit/redis/create-client.js
James M. Greene 84547e54c7 Use node-redis for page cache (#18421)
* Use [node-]redis as a direct dependency

* Extract Redis client creation to its own module

* Attach extensive logging in the Redis client creation module

* Allow the rate limiter to pass requests when Redis is disconnected

* Update rate-limit-redis

* Default error input to empty object for formatRedisError method

* Provide a name for the rate limiter's Redis client

* Include redis-mock, exclude ioredis/ioredis-mock

* Remove unused RedisAccessor#exists method

* Switch RedisAccessor to use redis/redis-mock

* Provide a name for logging on the Redis page cache

* Remove extraneous trailing space from Redis logging prefix

Our updated use of console.* will already be adding a space after the prefix

* Replace ioredis-mock with redis-mock in tests

* Revert removal of ioredis dependency

* Bind Redis client to async promisified methods

* Extract former RedisAccessor constructor tests to new create-client tests

* Update RedisAccessor tests to work with the callback-based redis client

* Handle formatting Redis errors (or not) with more resiliency
2021-03-29 17:34:22 +00:00

34 lines
1.3 KiB
JavaScript

const createRedisClient = require('../../../lib/redis/create-client')
const redisUrl = 'http://localhost:6379'
describe('create-client', () => {
test('returns null if no URL is provided', async () => {
expect(createRedisClient({})).toBe(null)
})
test('throws if database number is provided but is not a number', async () => {
expect(() => createRedisClient({ url: redisUrl, db: 'dbName' })).toThrowError(
new TypeError('Redis database number must be an integer between 0 and 15 but was: "dbName"')
)
})
test('throws if database number is provided but is not an integer', async () => {
expect(() => createRedisClient({ url: redisUrl, db: 1.5 })).toThrowError(
new TypeError('Redis database number must be an integer between 0 and 15 but was: 1.5')
)
})
test('throws if database number is provided but is less than 0', async () => {
expect(() => createRedisClient({ url: redisUrl, db: -1 })).toThrowError(
new TypeError('Redis database number must be an integer between 0 and 15 but was: -1')
)
})
test('throws if database number is provided but is greater than max allowed', async () => {
expect(() => createRedisClient({ url: redisUrl, db: 16 })).toThrowError(
new TypeError('Redis database number must be an integer between 0 and 15 but was: 16')
)
})
})