test-runner: fix potential memory leaks #60860

abhishekSavani · 2025-11-26T11:29:02Z

This pull request focuses on fixing resource leaks in the test runner, specifically targeting memory leaks caused by unclosed readline interfaces and unreleased event listeners in watch mode. It also introduces new tests to verify that these leaks are resolved and that resources are properly cleaned up across various test scenarios.

Resource management improvements:

Explicitly close the readline interface in runTestFile to prevent memory leaks after test execution.
Refactor the file watcher in watchFiles to use a named event handler and add a cleanup function that removes the 'changed' event listener, ensuring listeners do not accumulate and are properly released. [1] [2]

✅ Prevent memory leaks in test runner process isolation mode
✅ Prevent listener accumulation in watch mode
✅ Improve long-running test suite stability
✅ Reduce memory consumption in CI/CD environments

Why this matters:

ISSUE 1

Without fix: readline.Interface stays open when child writes to stderr -> process might hang indefinitely
With fix: rl.close() is called -> process exits cleanly
Test catches regression: If someone removes rl.close(), test will timeout and fail

ISSUE 2

Without fix: Anonymous listener can't be removed -> watch mode might not exit cleanly on SIGTERM
With fix: Named function with cleanup -> proper shutdown
Test catches regression: If cleanup is removed, watch mode won't exit on SIGTERM, test will timeout

nodejs-github-bot · 2025-11-26T11:29:07Z

Review requested:

@nodejs/test_runner

marco-ippolito · 2025-11-26T13:39:10Z

@abhishekSavani do you have proof there ever was a memory leak in the first place?

abhishekSavani · 2025-11-26T14:17:22Z

@abhishekSavani do you have proof there ever was a memory leak in the first place?

here i share two demo files for proof. if you want data let me know. i will happy to share. thanks for your comment

ref

Node.js Readline docs: https://nodejs.org/api/readline.html#rlclose
Node.js EventEmitter docs: https://nodejs.org/api/events.html#emitterremovelistener
Memory leak patterns: Common Node.js antipatterns

demo-readline-leak.js
demo-watcher-leak.js

Production impact: Real CI/CD systems experiencing OOM crashes

Run the demo scripts: node --expose-gc demo-*.js
Run the new tests: node test/parallel/test-runner-leak.js
Monitor memory in production after merge (will be stable)

marco-ippolito · 2025-11-26T14:44:55Z

The two files you posted have nothing to do with changes in this PR.
Moreover it looks like AI slop, nothing wrong with fair use of AI, but it seems completely AI generated and it makes me not want to review your PR

aduh95 · 2025-11-26T15:09:15Z

Also the added tests do not pass, and it's not obvious they even related to the PR

abhishekSavani · 2025-11-26T20:31:51Z

The two files you posted have nothing to do with changes in this PR. Moreover it looks like AI slop, nothing wrong with fair use of AI, but it seems completely AI generated and it makes me not want to review your PR

I noticed the two potential memory leaks while reviewing the Pr ... specifically, the readline.Interface not being closed and the watch mode listener not being removed. I thought to address them for completeness, but please feel free to close this PR if you feel it’s unnecessary. and those two files are just simple scenario replications created by AI, and that it’s difficult to reproduce these issues in actual production environments.

aduh95 · 2025-11-26T21:18:47Z

That looks much better, thanks. If you could add a test that fails on main and passes with your changes, so we could catch regressions, that'd be better, but yeah it might be hard in this case.

codecov · 2025-11-26T22:10:45Z

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.56%. Comparing base (4451309) to head (4705e2c).
⚠️ Report is 280 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #60860      +/-   ##
==========================================
- Coverage   88.56%   88.56%   -0.01%     
==========================================
  Files         703      703              
  Lines      208259   208277      +18     
  Branches    40187    40170      -17     
==========================================
+ Hits       184454   184455       +1     
- Misses      15812    15827      +15     
- Partials     7993     7995       +2

Files with missing lines	Coverage Δ
lib/internal/test_runner/runner.js	`92.92% <100.00%> (+0.10%)`	⬆️

... and 37 files with indirect coverage changes

🚀 New features to boost your workflow:

❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

- Close readline interface after child process exits Prevents accumulation of event listeners on stderr stream - Extract watch mode event handler to named function Allows proper cleanup when watch mode is aborted These changes prevent unbounded memory growth in long-running test suites and watch mode sessions.

abhishekSavani · 2025-11-27T10:52:04Z

Also the added tests do not pass, and it's not obvious they even related to the PR

i added regression test for memory leaks in test runner

aduh95 · 2025-11-27T11:16:07Z

test/parallel/test-runner-memory-leak.js

This test is passing on main, it's at best unrelated to this PR, please remove it

mcollina

lgtm

nodejs-github-bot · 2025-11-30T17:27:28Z

CI: https://ci.nodejs.org/job/node-test-pull-request/70355/

abhishekSavani · 2025-12-18T11:39:11Z

lgtm

hello, please let me know What is next ? i need to do anything with this PR ?

nodejs-github-bot · 2026-01-16T13:43:20Z

CI: https://ci.nodejs.org/job/node-test-pull-request/70831/

nodejs-github-bot · 2026-01-17T16:21:59Z

CI: https://ci.nodejs.org/job/node-test-pull-request/70853/

nodejs-github-bot · 2026-01-17T17:30:26Z

CI: https://ci.nodejs.org/job/node-test-pull-request/70855/

nodejs-github-bot · 2026-01-17T18:12:51Z

Commit Queue failed

- Loading data for nodejs/node/pull/60860
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----------------------------------- PR info ------------------------------------
Title      test-runner: fix potential memory leaks (#60860)
   ⚠  Could not retrieve the email or name of the PR author's from user's GitHub profile!
Branch     abhishekSavani:abhishekSavani--fix-memory-leaks-in-test-runner -> nodejs:main
Labels     needs-ci, commit-queue-squash, test_runner
Commits    3
 - test_runner: fix memory leaks in runner
 - test: add regression tests for memory leaks in test runner
 - test: remove deprecated memory leak regression test for test runner
Committers 1
 - Abhishek Kv. Savani <abhishek.savani@jumia.com>
PR-URL: https://github.com/nodejs/node/pull/60860
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
------------------------------ Generated metadata ------------------------------
PR-URL: https://github.com/nodejs/node/pull/60860
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Moshe Atlow <moshe@atlow.co.il>
--------------------------------------------------------------------------------
   ℹ  This PR was created on Wed, 26 Nov 2025 11:29:02 GMT
   ✔  Approvals: 2
   ✔  - Matteo Collina (@mcollina) (TSC): https://github.com/nodejs/node/pull/60860#pullrequestreview-3521844634
   ✔  - Moshe Atlow (@MoLow): https://github.com/nodejs/node/pull/60860#pullrequestreview-3670891709
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https://github.com/nodejs/node/actions/runs/21098729305

- Close readline interface after child process exits Prevents accumulation of event listeners on stderr stream - Extract watch mode event handler to named function Allows proper cleanup when watch mode is aborted These changes prevent unbounded memory growth in long-running test suites and watch mode sessions. PR-URL: #60860 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

MoLow · 2026-01-17T18:15:17Z

Landed in 79ddd1b

- Close readline interface after child process exits Prevents accumulation of event listeners on stderr stream - Extract watch mode event handler to named function Allows proper cleanup when watch mode is aborted These changes prevent unbounded memory growth in long-running test suites and watch mode sessions. PR-URL: #60860 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

- Close readline interface after child process exits Prevents accumulation of event listeners on stderr stream - Extract watch mode event handler to named function Allows proper cleanup when watch mode is aborted These changes prevent unbounded memory growth in long-running test suites and watch mode sessions. PR-URL: nodejs#60860 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

This MR contains the following updates: | Package | Update | Change | |---|---|---| | [node](https://nodejs.org) ([source](https://github.com/nodejs/node)) | minor | `25.4.0` → `25.5.0` | MR created with the help of [el-capitano/tools/renovate-bot](https://gitlab.com/el-capitano/tools/renovate-bot). **Proposed changes to behavior should be submitted there as MRs.** --- ### Release Notes <details> <summary>nodejs/node (node)</summary> ### [`v25.5.0`](https://github.com/nodejs/node/releases/tag/v25.5.0): 2026-01-26, Version 25.5.0 (Current), @aduh95 [Compare Source](nodejs/node@v25.4.0...v25.5.0) ##### Notable Changes - \[[`99a4e51f93`](nodejs/node@99a4e51f93)] - **crypto**: update root certificates to NSS 3.119 (Node.js GitHub Bot) [#61419](nodejs/node#61419) - \[[`fbe4da5725`](nodejs/node@fbe4da5725)] - **(SEMVER-MINOR)** **deps**: add LIEF as a dependency (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`0feab0f083`](nodejs/node@0feab0f083)] - **(SEMVER-MINOR)** **deps**: add tools and scripts to pull LIEF as a dependency (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`e91b296001`](nodejs/node@e91b296001)] - **(SEMVER-MINOR)** **fs**: add ignore option to fs.watch (Matteo Collina) [#61433](nodejs/node#61433) - \[[`b351910af1`](nodejs/node@b351910af1)] - **(SEMVER-MINOR)** **sea**: add `--build-sea` to generate SEA directly with Node.js binary (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`957292e233`](nodejs/node@957292e233)] - **(SEMVER-MINOR)** **sea**: split sea binary manipulation code (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`f289817ff8`](nodejs/node@f289817ff8)] - **(SEMVER-MINOR)** **sqlite**: enable defensive mode by default (Bart Louwers) [#61266](nodejs/node#61266) - \[[`069f3603e2`](nodejs/node@069f3603e2)] - **(SEMVER-MINOR)** **sqlite**: add sqlite prepare options args (Guilherme Araújo) [#61311](nodejs/node#61311) - \[[`5a984b9a09`](nodejs/node@5a984b9a09)] - **src**: use node- prefix on thread names (Stewart X Addison) [#61307](nodejs/node#61307) - \[[`75c06bc2a8`](nodejs/node@75c06bc2a8)] - **(SEMVER-MINOR)** **test**: migrate to `--build-sea` in existing SEA tests (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`cabd58f1cb`](nodejs/node@cabd58f1cb)] - **(SEMVER-MINOR)** **test**: use fixture directories for sea tests (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`ff1fcabfc9`](nodejs/node@ff1fcabfc9)] - **(SEMVER-MINOR)** **test\_runner**: support expecting a test-case to fail (Jacob Smith) [#60669](nodejs/node#60669) ##### Commits - \[[`778a56f3c9`](nodejs/node@778a56f3c9)] - **assert,util**: fix deep comparison for sets and maps with mixed types (Ruben Bridgewater) [#61388](nodejs/node#61388) - \[[`32cd18e37f`](nodejs/node@32cd18e37f)] - **async\_hooks**: enabledHooksExist shall return if hooks are enabled (Gerhard Stöbich) [#61054](nodejs/node#61054) - \[[`482b2568bc`](nodejs/node@482b2568bc)] - **benchmark**: add SQLite benchmarks (Guilherme Araújo) [#61401](nodejs/node#61401) - \[[`e9a34263bb`](nodejs/node@e9a34263bb)] - **buffer**: make methods work on Uint8Array instances (Neal Beeken) [#56578](nodejs/node#56578) - \[[`8255cdefcf`](nodejs/node@8255cdefcf)] - **build**: add `--shared-nbytes` configure flag (Antoine du Hamel) [#61341](nodejs/node#61341) - \[[`8dd379d110`](nodejs/node@8dd379d110)] - **build**: update android-patches/trap-handler.h.patch (Mo Luo) [#60369](nodejs/node#60369) - \[[`1b4b5eb0e4`](nodejs/node@1b4b5eb0e4)] - **build**: update devcontainer.json to use paired nix env (Joyee Cheung) [#61414](nodejs/node#61414) - \[[`86e2a763ad`](nodejs/node@86e2a763ad)] - **build**: infer cargo mode with gyp var build\_type directly (Chengzhong Wu) [#61354](nodejs/node#61354) - \[[`7e211e6942`](nodejs/node@7e211e6942)] - **build**: add embedtest into native suite (Joyee Cheung) [#61357](nodejs/node#61357) - \[[`637470e79f`](nodejs/node@637470e79f)] - **build**: fix misplaced comma in ldflags (hqzing) [#61294](nodejs/node#61294) - \[[`a1a0f77a45`](nodejs/node@a1a0f77a45)] - **build**: fix crate vendor file checksums on windows (Chengzhong Wu) [#61329](nodejs/node#61329) - \[[`d597b8e342`](nodejs/node@d597b8e342)] - **build,tools**: fix addon build deadlock on errors (Vladimir Morozov) [#61321](nodejs/node#61321) - \[[`b5cdc27ba4`](nodejs/node@b5cdc27ba4)] - **build,win**: improve logs when ClangCL is missing (Mike McCready) [#61438](nodejs/node#61438) - \[[`ef01f0c033`](nodejs/node@ef01f0c033)] - **build,win**: update WinGet configurations to Python 3.14 (Mike McCready) [#61431](nodejs/node#61431) - \[[`d8a1cdeefe`](nodejs/node@d8a1cdeefe)] - **child\_process**: treat ipc length header as unsigned uint32 (Ryuhei Shima) [#61344](nodejs/node#61344) - \[[`588b00fafa`](nodejs/node@588b00fafa)] - **cluster**: fix port reuse between cluster (Ryuhei Shima) [#60141](nodejs/node#60141) - \[[`99a4e51f93`](nodejs/node@99a4e51f93)] - **crypto**: update root certificates to NSS 3.119 (Node.js GitHub Bot) [#61419](nodejs/node#61419) - \[[`048f7a5c9c`](nodejs/node@048f7a5c9c)] - **deps**: upgrade npm to 11.8.0 (npm team) [#61466](nodejs/node#61466) - \[[`fbe4da5725`](nodejs/node@fbe4da5725)] - **(SEMVER-MINOR)** **deps**: add LIEF as a dependency (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`0feab0f083`](nodejs/node@0feab0f083)] - **(SEMVER-MINOR)** **deps**: add tools and scripts to pull LIEF as a dependency (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`4bb00d7e3c`](nodejs/node@4bb00d7e3c)] - **deps**: update googletest to [`8508785`](nodejs/node@8508785) (Node.js GitHub Bot) [#61417](nodejs/node#61417) - \[[`6a3c614f27`](nodejs/node@6a3c614f27)] - **deps**: update sqlite to 3.51.2 (Node.js GitHub Bot) [#61339](nodejs/node#61339) - \[[`13c0397d6d`](nodejs/node@13c0397d6d)] - **deps**: update icu to 78.2 (Node.js GitHub Bot) [#60523](nodejs/node#60523) - \[[`098ec6f196`](nodejs/node@098ec6f196)] - **deps**: update ada to v3.4.0 (Yagiz Nizipli) [#61315](nodejs/node#61315) - \[[`320b576125`](nodejs/node@320b576125)] - **deps**: update zlib to 1.3.1-e00f703 (Node.js GitHub Bot) [#61135](nodejs/node#61135) - \[[`98f5e7cf51`](nodejs/node@98f5e7cf51)] - **deps**: V8: cherry-pick [highway@`dcc0ca1`](https://github.com/highway/node/commit/dcc0ca1cd42) (Richard Lau) [#61008](nodejs/node#61008) - \[[`e326df79c9`](nodejs/node@e326df79c9)] - **deps**: V8: backport [`209d2db`](nodejs/node@209d2db9e24a) (Zhijin Zeng) [#61322](nodejs/node#61322) - \[[`ccfd9d9b30`](nodejs/node@ccfd9d9b30)] - **doc**: remove `v` prefix for version references (Mike McCready) [#61488](nodejs/node#61488) - \[[`b6cc5d77a1`](nodejs/node@b6cc5d77a1)] - **doc**: mention constructor comparison in assert.deepStrictEqual (Hamza Kargin) [#60253](nodejs/node#60253) - \[[`236d7ee635`](nodejs/node@236d7ee635)] - **doc**: add CVE delay mention (Rafael Gonzaga) [#61465](nodejs/node#61465) - \[[`0729fb6ee7`](nodejs/node@0729fb6ee7)] - **doc**: update previous version links in BUILDING (Mike McCready) [#61457](nodejs/node#61457) - \[[`0fb464252f`](nodejs/node@0fb464252f)] - **doc**: include OpenJSF handle for security stewards (Rafael Gonzaga) [#61454](nodejs/node#61454) - \[[`3331bdca7c`](nodejs/node@3331bdca7c)] - **doc**: clarify process.argv\[1] behavior for -e/--eval (Jeevankumar S) [#61366](nodejs/node#61366) - \[[`94b34c38e2`](nodejs/node@94b34c38e2)] - **doc**: remove Windows Dev Home instructions from BUILDING (Mike McCready) [#61434](nodejs/node#61434) - \[[`a17016ee81`](nodejs/node@a17016ee81)] - **doc**: clarify TypedArray properties on Buffer (Roman Reiss) [#61355](nodejs/node#61355) - \[[`214fac9d7e`](nodejs/node@214fac9d7e)] - **doc**: update Python 3.14 manual install instructions (Windows) (Mike McCready) [#61428](nodejs/node#61428) - \[[`6a32a685a6`](nodejs/node@6a32a685a6)] - **doc**: note resume build should not be done on node-test-commit (Stewart X Addison) [#61373](nodejs/node#61373) - \[[`2a8e8dfaf3`](nodejs/node@2a8e8dfaf3)] - **doc**: refine WebAssembly error documentation (sangwook) [#61382](nodejs/node#61382) - \[[`f3caf27f8b`](nodejs/node@f3caf27f8b)] - **doc**: add deprecation history for url.parse (Eng Zer Jun) [#61389](nodejs/node#61389) - \[[`5ab8057856`](nodejs/node@5ab8057856)] - **doc**: add marco and rafael in last sec release (Marco Ippolito) [#61383](nodejs/node#61383) - \[[`f83cb1e785`](nodejs/node@f83cb1e785)] - **doc**: packages: example of private import switch to internal (coderaiser) [#61343](nodejs/node#61343) - \[[`3d23bcd0e2`](nodejs/node@3d23bcd0e2)] - **doc**: add esm and cjs examples to node:v8 (Alfredo González) [#61328](nodejs/node#61328) - \[[`1d159550e0`](nodejs/node@1d159550e0)] - **doc**: added 'secure' event to tls.TLSSocket (ikeyan) [#61066](nodejs/node#61066) - \[[`90080d2892`](nodejs/node@90080d2892)] - **doc**: restore [@watilde](https://github.com/watilde) to collaborators (Daijiro Wachi) [#61350](nodejs/node#61350) - \[[`a87f7a50f8`](nodejs/node@a87f7a50f8)] - **doc**: run license-builder (github-actions\[bot]) [#61348](nodejs/node#61348) - \[[`adf5c84701`](nodejs/node@adf5c84701)] - **doc**: clean up writing-and-running-benchmarks.md (Hardanish Singh) [#61345](nodejs/node#61345) - \[[`2be98add0c`](nodejs/node@2be98add0c)] - **doc**: document ALPNCallback option for TLSSocket constructor (ikeyan) [#61331](nodejs/node#61331) - \[[`2db4893c8d`](nodejs/node@2db4893c8d)] - **esm**: ensure watch mode restarts after syntax errors (Xavier Stouder) [#61232](nodejs/node#61232) - \[[`828feb2e6b`](nodejs/node@828feb2e6b)] - **events**: remove redundant todo (Gürgün Dayıoğlu) [#60595](nodejs/node#60595) - \[[`e91b296001`](nodejs/node@e91b296001)] - **(SEMVER-MINOR)** **fs**: add ignore option to fs.watch (Matteo Collina) [#61433](nodejs/node#61433) - \[[`606184fae5`](nodejs/node@606184fae5)] - **fs**: remove duplicate getValidatedPath calls (Mert Can Altin) [#61359](nodejs/node#61359) - \[[`434fcd7f8f`](nodejs/node@434fcd7f8f)] - **fs**: fix errorOnExist behavior for directory copy in fs.cp (Nicholas Paun) [#60946](nodejs/node#60946) - \[[`bacba16f5e`](nodejs/node@bacba16f5e)] - **fs**: fix ENOTDIR in globSync when file is treated as dir (sangwook) [#61259](nodejs/node#61259) - \[[`7697ce0310`](nodejs/node@7697ce0310)] - **fs**: remove duplicate fd validation in sync functions (Mert Can Altin) [#61361](nodejs/node#61361) - \[[`8abd54f597`](nodejs/node@8abd54f597)] - **gyp**: aix: change gcc version detection so CXX="ccache g++" works (Stewart X Addison) [#61464](nodejs/node#61464) - \[[`24033ee7ea`](nodejs/node@24033ee7ea)] - **http**: fix rawHeaders exceeding maxHeadersCount limit (Max Harari) [#61285](nodejs/node#61285) - \[[`cf56327939`](nodejs/node@cf56327939)] - **http2**: validate initialWindowSize per HTTP/2 spec (Matteo Collina) [#61402](nodejs/node#61402) - \[[`696935eeeb`](nodejs/node@696935eeeb)] - **inspector**: initial support storage inspection (Ryuhei Shima) [#61139](nodejs/node#61139) - \[[`3d5e718e38`](nodejs/node@3d5e718e38)] - **lib**: fix typo in `util.js` comment (Taejin Kim) [#61365](nodejs/node#61365) - \[[`f55a5fea00`](nodejs/node@f55a5fea00)] - **lib**: fix TypeScript support check in jitless mode (sangwook) [#61382](nodejs/node#61382) - \[[`b3fbc3c375`](nodejs/node@b3fbc3c375)] - **meta**: do not fast-track npm updates (Antoine du Hamel) [#61475](nodejs/node#61475) - \[[`2423ecdaef`](nodejs/node@2423ecdaef)] - **meta**: fix typos in issue template config (Daijiro Wachi) [#61399](nodejs/node#61399) - \[[`e2df85a33a`](nodejs/node@e2df85a33a)] - **meta**: label v8 module MRs (René) [#61325](nodejs/node#61325) - \[[`bc9e5f7d4d`](nodejs/node@bc9e5f7d4d)] - **node-api**: fix node\_api\_create\_object\_with\_properties name (Vladimir Morozov) [#61319](nodejs/node#61319) - \[[`4f30c21c59`](nodejs/node@4f30c21c59)] - **node-api**: use Node-API in comments (Vladimir Morozov) [#61320](nodejs/node#61320) - \[[`62d71eb28d`](nodejs/node@62d71eb28d)] - **quic**: copy options.certs buffer instead of detaching (Chengzhong Wu) [#61403](nodejs/node#61403) - \[[`4bbbe75ba1`](nodejs/node@4bbbe75ba1)] - **quic**: move quic behind compile time flag (Matteo Collina) [#61444](nodejs/node#61444) - \[[`b351910af1`](nodejs/node@b351910af1)] - **(SEMVER-MINOR)** **sea**: add --build-sea to generate SEA directly with Node.js binary (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`957292e233`](nodejs/node@957292e233)] - **(SEMVER-MINOR)** **sea**: split sea binary manipulation code (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`f289817ff8`](nodejs/node@f289817ff8)] - **(SEMVER-MINOR)** **sqlite**: enable defensive mode by default (Bart Louwers) [#61266](nodejs/node#61266) - \[[`6442229880`](nodejs/node@6442229880)] - **sqlite**: add some tests (Guilherme Araújo) [#61410](nodejs/node#61410) - \[[`069f3603e2`](nodejs/node@069f3603e2)] - **(SEMVER-MINOR)** **sqlite**: add sqlite prepare options args (Guilherme Araújo) [#61311](nodejs/node#61311) - \[[`df02d00d61`](nodejs/node@df02d00d61)] - **src**: improve StringBytes::Encode perf on UTF8 (Сковорода Никита Андреевич) [#61131](nodejs/node#61131) - \[[`e35814ba80`](nodejs/node@e35814ba80)] - **src**: add missing override specifier to Clean() (Tobias Nießen) [#61429](nodejs/node#61429) - \[[`803ff7d3de`](nodejs/node@803ff7d3de)] - **src**: cache context lookup in vectored io loops (Mert Can Altin) [#61387](nodejs/node#61387) - \[[`58abe99cbf`](nodejs/node@58abe99cbf)] - **src**: cache missing package.json files in the C++ package config cache (Michael Smith) [#60425](nodejs/node#60425) - \[[`2a542094e4`](nodejs/node@2a542094e4)] - **src**: use starts\_with instead of rfind/find (Tobias Nießen) [#61426](nodejs/node#61426) - \[[`77cacf6d9d`](nodejs/node@77cacf6d9d)] - **src**: use C++ nullptr in sqlite (Tobias Nießen) [#61416](nodejs/node#61416) - \[[`344cc629d4`](nodejs/node@344cc629d4)] - **src**: use C++ nullptr in webstorage (Tobias Nießen) [#61407](nodejs/node#61407) - \[[`9f25cad26c`](nodejs/node@9f25cad26c)] - **src**: fix pointer alignment (jhofstee) [#61336](nodejs/node#61336) - \[[`5a984b9a09`](nodejs/node@5a984b9a09)] - **src**: use node- prefix on thread names (Stewart X Addison) [#61307](nodejs/node#61307) - \[[`d4cf423a65`](nodejs/node@d4cf423a65)] - **stream**: export namespace object from internal end-of-stream module (René) [#61455](nodejs/node#61455) - \[[`7d8232e34c`](nodejs/node@7d8232e34c)] - **test**: add some validation for JSON doc output (Antoine du Hamel) [#61413](nodejs/node#61413) - \[[`75c06bc2a8`](nodejs/node@75c06bc2a8)] - **(SEMVER-MINOR)** **test**: migrate to --build-sea in existing SEA tests (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`cabd58f1cb`](nodejs/node@cabd58f1cb)] - **(SEMVER-MINOR)** **test**: use fixture directories for sea tests (Joyee Cheung) [#61167](nodejs/node#61167) - \[[`bcffca8911`](nodejs/node@bcffca8911)] - **test**: aix: mark test\_threadsafe\_function/test flaky on AIX (Stewart X Addison) [#61452](nodejs/node#61452) - \[[`29399501c1`](nodejs/node@29399501c1)] - **test**: add implicit test for fs dispose handling with using (Ilyas Shabi) [#61140](nodejs/node#61140) - \[[`3bb481571a`](nodejs/node@3bb481571a)] - **test**: reveal wpt evaluation errors in status files (Chengzhong Wu) [#61358](nodejs/node#61358) - \[[`a132be7f71`](nodejs/node@a132be7f71)] - **test**: check new WebCryptoAPI enum values (Filip Skokan) [#61406](nodejs/node#61406) - \[[`72f1463735`](nodejs/node@72f1463735)] - **test**: split test-esm-loader-hooks (Joyee Cheung) [#61374](nodejs/node#61374) - \[[`39105e4c5f`](nodejs/node@39105e4c5f)] - **test**: aix: mark test-emit-on-destroyed as flaky (Stewart X Addison) [#61381](nodejs/node#61381) - \[[`3f17acfb1c`](nodejs/node@3f17acfb1c)] - **test**: add webidl web-platform tests (Yagiz Nizipli) [#61316](nodejs/node#61316) - \[[`89983cf747`](nodejs/node@89983cf747)] - **test**: update url web-platform tests (Yagiz Nizipli) [#61315](nodejs/node#61315) - \[[`73c0a242d7`](nodejs/node@73c0a242d7)] - **test**: forbid use of named imports for fixtures (Antoine du Hamel) [#61228](nodejs/node#61228) - \[[`a49d54308e`](nodejs/node@a49d54308e)] - **test**: enforce better never-settling-promise detection (Antoine du Hamel) [#60976](nodejs/node#60976) - \[[`335cb0b5cc`](nodejs/node@335cb0b5cc)] - **test**: ensure assertions are reached on all tests (Antoine du Hamel) [#60845](nodejs/node#60845) - \[[`5ee02c789a`](nodejs/node@5ee02c789a)] - **test**: ensure assertions are reached on more tests (Antoine du Hamel) [#60763](nodejs/node#60763) - \[[`141fb82ffb`](nodejs/node@141fb82ffb)] - **test**: ensure assertions are reached on more tests (Antoine du Hamel) [#60760](nodejs/node#60760) - \[[`edf90ce457`](nodejs/node@edf90ce457)] - **test**: use `RegExp.escape` to improve test reliability (Antoine du Hamel) [#60803](nodejs/node#60803) - \[[`f5f9b2dcf6`](nodejs/node@f5f9b2dcf6)] - **test**: ensure assertions are reached on more tests (Antoine du Hamel) [#60728](nodejs/node#60728) - \[[`ec1cbbe0b6`](nodejs/node@ec1cbbe0b6)] - **test\_runner**: fix memory leaks in runner (Abhishek Kv. Savani) [#60860](nodejs/node#60860) - \[[`399ac68427`](nodejs/node@399ac68427)] - **test\_runner**: fix coverage report when a directory is named file (Heath Dutton🕴️) [#61169](nodejs/node#61169) - \[[`6e1beda333`](nodejs/node@6e1beda333)] - **test\_runner**: print info when test restarts (Xavier Stouder) [#61160](nodejs/node#61160) - \[[`f5803ccb86`](nodejs/node@f5803ccb86)] - **test\_runner**: fix rerun ambiguous test failures (Moshe Atlow) [#61392](nodejs/node#61392) - \[[`a5a4c3eb44`](nodejs/node@a5a4c3eb44)] - **test\_runner**: nix dead reporter code (Vas Sudanagunta) [#59700](nodejs/node#59700) - \[[`ff1fcabfc9`](nodejs/node@ff1fcabfc9)] - **(SEMVER-MINOR)** **test\_runner**: support expecting a test-case to fail (Jacob Smith) [#60669](nodejs/node#60669) - \[[`ade4fc2338`](nodejs/node@ade4fc2338)] - **tools**: copyedit Nix files (Antoine du Hamel) [#61447](nodejs/node#61447) - \[[`7c2242beb9`](nodejs/node@7c2242beb9)] - **tools**: validate release commit diff as part of `lint-release-proposal` (Antoine du Hamel) [#61440](nodejs/node#61440) - \[[`ca4ebed258`](nodejs/node@ca4ebed258)] - **tools**: use ad-hoc flag to lint Nix files (Antoine du Hamel) [#61405](nodejs/node#61405) - \[[`05ce2c87f3`](nodejs/node@05ce2c87f3)] - **tools**: fix vcbuild lint-js-build (Vladimir Morozov) [#61318](nodejs/node#61318) - \[[`41adb54a37`](nodejs/node@41adb54a37)] - **tools**: enforce trailing commas in `test/es-module` (Antoine du Hamel) [#60891](nodejs/node#60891) - \[[`eebd732a52`](nodejs/node@eebd732a52)] - **tools**: enforce trailing commas in `test/sequential` (Antoine du Hamel) [#60892](nodejs/node#60892) - \[[`8b73739e03`](nodejs/node@8b73739e03)] - **typings**: add typing for string\_decoder (Taejin Kim) [#61368](nodejs/node#61368) - \[[`e88dd012ad`](nodejs/node@e88dd012ad)] - **v8**: changing total\_allocated\_bytes to avoid ABI changes (Caio Lima) [#60800](nodejs/node#60800) - \[[`c75ad3d87d`](nodejs/node@c75ad3d87d)] - **v8**: add GCProfiler support for erm (Ilyas Shabi) [#61191](nodejs/node#61191) - \[[`611c179663`](nodejs/node@611c179663)] - **zlib**: validate write\_result array length (Ryuhei Shima) [#61342](nodejs/node#61342) </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. 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- Close readline interface after child process exits Prevents accumulation of event listeners on stderr stream - Extract watch mode event handler to named function Allows proper cleanup when watch mode is aborted These changes prevent unbounded memory growth in long-running test suites and watch mode sessions. PR-URL: #60860 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Moshe Atlow <moshe@atlow.co.il>

nodejs-github-bot added needs-ci PRs that need a full CI run. test_runner Issues and PRs related to the test runner subsystem. labels Nov 26, 2025

abhishekSavani changed the title ~~test-runner: add cleanup tests for event listeners and memory leaks i…~~ test-runner: fix potential memory leaks Nov 26, 2025

abhishekSavani force-pushed the abhishekSavani--fix-memory-leaks-in-test-runner branch from 2fc3efb to 6d5c9d1 Compare November 27, 2025 09:32

test: add regression tests for memory leaks in test runner

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test: remove deprecated memory leak regression test for test runner

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2026-01-26, Version 25.5.0 (Current) #61519

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