playwright/docs/src/test-api/class-workerinfo.md

# class: WorkerInfo
* since: v1.10
* langs: js

`WorkerInfo` contains information about the worker that is running tests and is available to worker-scoped fixtures. `WorkerInfo` is a subset of [TestInfo] that is available in many other places.

## property: WorkerInfo.config
* since: v1.10
- type: <[TestConfig]>

Processed configuration from the [configuration file](../test-configuration.md).


## property: WorkerInfo.parallelIndex
* since: v1.10
- type: <[int]>

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](../test-parallel.md) with Playwright Test.


## property: WorkerInfo.project
* since: v1.10
- type: <[TestProject]>

Processed project configuration from the [configuration file](../test-configuration.md).


## property: WorkerInfo.workerIndex
* since: v1.10
- type: <[int]>

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](../test-parallel.md) with Playwright Test.
docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00			`# class: WorkerInfo`
docs: annotate since (#15386) 2022-07-05 16:24:50 -08:00			`* since: v1.10`
docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00			`* langs: js`

docs: fix details about WorkerInfo vs TestInfo availability (#21699) Fixes #21695. 2023-03-16 12:36:34 -07:00			`WorkerInfo` contains information about the worker that is running tests and is available to worker-scoped fixtures. `WorkerInfo` is a subset of [TestInfo] that is available in many other places.
docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00
			`## property: WorkerInfo.config`
docs: annotate since (#15386) 2022-07-05 16:24:50 -08:00			`* since: v1.10`
docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00			`- type: <[TestConfig]>`

chore: add link validation for docs (#13047) 2022-03-25 19:30:45 +01:00			`Processed configuration from the [configuration file](../test-configuration.md).`
docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00

feat(test runner): introduce TestInfo.parallelIndex (#9762) This is a worker number between `0` and `workers - 1` that does not change after worker process restart. 2021-11-01 10:37:34 -07:00			`## property: WorkerInfo.parallelIndex`
docs: annotate since (#15386) 2022-07-05 16:24:50 -08:00			`* since: v1.10`
feat(test runner): introduce TestInfo.parallelIndex (#9762) This is a worker number between `0` and `workers - 1` that does not change after worker process restart. 2021-11-01 10:37:34 -07:00			`- type: <[int]>`

			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`.

chore: add link validation for docs (#13047) 2022-03-25 19:30:45 +01:00			Also available as `process.env.TEST_PARALLEL_INDEX`. Learn more about [parallelism and sharding](../test-parallel.md) with Playwright Test.
feat(test runner): introduce TestInfo.parallelIndex (#9762) This is a worker number between `0` and `workers - 1` that does not change after worker process restart. 2021-11-01 10:37:34 -07:00

docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00			`## property: WorkerInfo.project`
docs: annotate since (#15386) 2022-07-05 16:24:50 -08:00			`* since: v1.10`
docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00			`- type: <[TestProject]>`

chore: add link validation for docs (#13047) 2022-03-25 19:30:45 +01:00			`Processed project configuration from the [configuration file](../test-configuration.md).`
docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00

			`## property: WorkerInfo.workerIndex`
docs: annotate since (#15386) 2022-07-05 16:24:50 -08:00			`* since: v1.10`
docs(test-runner): initial API docs for test runner (#7732) 2021-07-22 11:01:18 -07:00			`- type: <[int]>`

feat(test runner): introduce TestInfo.parallelIndex (#9762) This is a worker number between `0` and `workers - 1` that does not change after worker process restart. 2021-11-01 10:37:34 -07:00			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`.

chore: add link validation for docs (#13047) 2022-03-25 19:30:45 +01:00			Also available as `process.env.TEST_WORKER_INDEX`. Learn more about [parallelism and sharding](../test-parallel.md) with Playwright Test.