Ali Hassan
2ebe49600e
This adds support for identifying which worker is running a test file when tests execute concurrently, similar to JEST_WORKER_ID in Jest, VITEST_POOL_ID in Vitest, and MOCHA_WORKER_ID in Mocha. When running with --test-isolation=process (default), each test file runs in a separate child process and receives a unique worker ID from 1 to N. When running with --test-isolation=none, all tests run in the same process and the worker ID is always 1. This enables users to allocate separate resources (databases, ports, etc.) for each test worker to avoid conflicts during concurrent execution. Changes: - Add WorkerIdPool class to manage worker ID allocation and reuse - Set NODE_TEST_WORKER_ID environment variable for child processes - Add context.workerId getter to TestContext class - Add tests for worker ID functionality - Add documentation for context.workerId Fixes: https://github.com/nodejs/node/issues/55842 PR-URL: https://github.com/nodejs/node/pull/61394 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Pietro Marchini <pietro.marchini94@gmail.com> Reviewed-By: Jacob Smith <jacob@frende.me>
Node.js Core Tests
This directory contains code and data used to test the Node.js implementation.
For a detailed guide on how to write tests in this directory, see the guide on writing tests.
On how to run tests in this directory, see the contributing guide.
For the tests to run on Windows, be sure to clone Node.js source code with the
autocrlf git config flag set to true.
Test Directories
| Directory | Runs on CI | Purpose |
|---|---|---|
abort |
Yes | Tests that use --abort-on-uncaught-exception and other cases where we want to avoid generating a core file. |
addons |
Yes | Tests for addon functionality along with some tests that require an addon. |
async-hooks |
Yes | Tests for async_hooks functionality. |
benchmark |
Yes | Test minimal functionality of benchmarks. |
cctest |
Yes | C++ tests that are run as part of the build process. |
code-cache |
No | Tests for a Node.js binary compiled with V8 code cache. |
common |
N/A | Common modules shared among many tests.1 |
doctool |
Yes | Tests for the documentation generator. |
es-module |
Yes | Test ESM module loading. |
fixtures |
N/A | Test fixtures used in various tests throughout the test suite. |
internet |
No | Tests that make real outbound network connections.2 |
js-native-api |
Yes | Tests for Node.js-agnostic Node-API functionality. |
known_issues |
Yes | Tests reproducing known issues within the system.3 |
message |
Yes | Tests for messages that are output for various conditions |
node-api |
Yes | Tests for Node.js-specific Node-API functionality. |
parallel |
Yes | Various tests that are able to be run in parallel. |
pseudo-tty |
Yes | Tests that require stdin/stdout/stderr to be a TTY. |
pummel |
No | Various tests for various modules / system functionality operating under load. |
sequential |
Yes | Various tests that must not run in parallel. |
testpy |
N/A | Test configuration utility used by various test suites. |
tick-processor |
No | Tests for the V8 tick processor integration.4 |
v8-updates |
No | Tests for V8 performance integration. |
-
Tests for networking related modules may also be present in other directories, but those tests do not make outbound connections. ↩︎
-
All tests inside of this directory are expected to fail. If a test doesn't fail on certain platforms, those should be skipped via
known_issues.status. ↩︎ -
The tests are for the logic in
lib/internal/main/prof_process.jsandlib/internal/v8_prof_polyfill.js. The tests confirm that the profile processor packages the correct set of scripts from V8 and introduces the correct platform specific logic. ↩︎