jest-worker

Install

Example

File `parent.js`

File `worker.js`

Experimental worker

API

`workerPath: string | URL` (required)

`options: Object` (optional)

`computeWorkerKey: (method: string, ...args: Array) => string | null` (optional)

`enableWorkerThreads: boolean` (optional)

`exposedMethods: ReadonlyArray` (optional)

`forkOptions: ForkOptions` (optional)

`idleMemoryLimit: number` (optional)

`maxRetries: number` (optional)

`numWorkers: number` (optional)

`resourceLimits: ResourceLimits` (optional)

`silent: Boolean` (optional)

`setupArgs: Array` (optional)

`taskQueue: TaskQueue` (optional)

`WorkerPool: new (workerPath: string, options?: WorkerPoolOptions) => WorkerPoolInterface` (optional)

`workerSchedulingPolicy: 'round-robin' | 'in-order'` (optional)

JestWorker

Methods

`getStdout(): Readable`

`getStderr(): Readable`

`start()`

`end()`

Worker IDs

Setting up and tearing down the child process

More examples

Standard usage

File `parent.js`

File `worker.js`

Bound worker usage:

File `parent.js`

File `worker.js`