WorkerInfo

WorkerInfo contains information about the worker that is running tests. It is available to test.beforeAll(hookFunction) and test.afterAll(hookFunction) hooks and worker-scoped fixtures.

TypeScript

import { test, expect } from '@playwright/test';

test.beforeAll(async ({ browserName }, workerInfo) => {
  console.log(`Running ${browserName} in worker #${workerInfo.workerIndex}`);
});

JavaScript

const { test, expect } = require('@playwright/test');

test.beforeAll(async ({ browserName }, workerInfo) => {
  console.log(`Running ${browserName} in worker #${workerInfo.workerIndex}`);
});

• workerInfo.config
• workerInfo.parallelIndex
• workerInfo.project
• workerInfo.workerIndex

workerInfo.config

Added in: v1.10

• type: <TestConfig>

Processed configuration from the configuration file.

workerInfo.parallelIndex

Added in: v1.10

• type: <number>

The index of the worker between 0 and workers - 1. It is guaranteed that workers running at the same time have a different parallelIndex. When a worker is restarted, for example after a failure, the new worker process has the same parallelIndex.

Also available as process.env.TEST_PARALLEL_INDEX. Learn more about parallelism and sharding with Playwright Test.

workerInfo.project

Added in: v1.10

• type: <TestProject>

Processed project configuration from the configuration file.

workerInfo.workerIndex

Added in: v1.10

• type: <number>

The unique index of the worker process that is running the test. When a worker is restarted, for example after a failure, the new worker process gets a new unique workerIndex.

Also available as process.env.TEST_WORKER_INDEX. Learn more about parallelism and sharding with Playwright Test.