Version 1.0.0

@stackline/types-jest

TypeScript definitions for jest

Independent maintenance of @types/jest 30.0.0. Original authors and licenses are retained.

Installation

# Preserve existing imports with an npm alias
npm install @types/jest@npm:@stackline/types-jest@1.0.0
# Or use the scoped package name in your imports
npm install @stackline/types-jest@1.0.0

Node.js: See compatibility notes. Read the compatibility and maintenance notes before migrating.

Usage and API

The reference below may retain upstream package names. Use the alias installation above to run those imports with this Stackline release.

@stackline/types-jest

Maintained TypeScript declaration fork of @types/jest@30.0.0. This package supplies declarations, not JavaScript runtime code. The original declarations, contributors and MIT license are retained; focused changes are listed in CHANGELOG.md.

npm install --save-dev @stackline/types-jest@1.0.0
# Keep existing type imports and automatic @types discovery:
npm install --save-dev @types/jest@npm:@stackline/types-jest@1.0.0

For direct installation, use @stackline/types-jest in type imports, or in compilerOptions.types for Jest globals. Aliasing to @types/jest preserves the upstream module names. Requires TypeScript 5.4 or newer, subject to the dependencies selected by your lockfile. No library runtime engine requirement is introduced. Development tooling uses Node.js24.

Source and issue review · Issues · npm · Stackline

Original package documentation

Installation

npm install --save @types/jest

Summary

This package contains type definitions for jest (https://jestjs.io/).

Details

Files were exported from https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/jest.

Additional Details

Last updated: Mon, 16 Jun 2025 07:35:37 GMT
Dependencies: expect, pretty-format

Credits

These definitions were written by Asana (https://asana.com) // Ivo Stratev, jwbay, Alexey Svetliakov, Alex Jover Morales, Allan Lukwago, Ika, Waseem Dahman, Jamie Mason, Douglas Duteil, Ahn, Jeff Lau, Andrew Makarov, Martin Hochel, Sebastian Sebald, Andy, Antoine Brault, Gregor Stamać, ExE Boss, Alex Bolenok, Mario Beltrán Alarcón, Tony Hallett, Jason Yu, Pawel Fajfer, Alexandre Germain, and Adam Jones.

Upstream issues and maintenance review

Upstream and review

Source: https://github.com/DefinitelyTyped/DefinitelyTyped/tree/cc23761e2c40a25fc41c96ac5df96cf59992599f/types/jest
Published baseline: @types/jest@30.0.0 (2025-06-16T07:35:50.850Z).
Upstream tarball integrity: sha512-XTYugzhuwqWjws0CVz8QpM36+T+Dz5mTEBKhNs/esGLnCIlGdRy+Dq78NRjd7ls7r8BC8ZRMOrKlkO1hU0JOwA==.
index.d.ts was compared byte-for-byte with that commit and matched before maintenance changes.
This standalone snapshot repository preserves original source content, contributors and license, but does not claim to preserve the DefinitelyTyped monorepo Git history.
Only original-parent direct dependencies are in scope; dependencies of this declaration package are not recursively forked.

Issue review

GitHub search on 2026-09-29 used repo:DefinitelyTyped/DefinitelyTyped is:issue is:open "jest" and the corresponding closed query. Counts: open: 17 results (collected 17), closed: 133 results (collected 100). Search results can contain unrelated packages; they are not evidence that every result is a defect here. Archived search responses and baseline comparisons are retained in the release research evidence. No issue was posted or modified.

Issue #34617 (each done callbacks) is already supported by the selected declarations; the original reproduction is a positive compile test. #41179 requests new assertion-function semantics and is not a safe compatibility fix. #60223 requests broader callbacks; existing strict void/promise callback contract is preserved. Historical reports against Jest 23-27 do not justify changing the selected Jest30 API.

Validation

Real declaration usage and negative type assertions are compiled with TypeScript 5.4.6 and 5.9.3, with strict: true and skipLibCheck: false, from source and isolated direct/alias tarball installs. CI also checks the complete dependency audit, CodeQL, package contents and exact CI archive identity before GitHub-only publication. Registry verification compiles direct and aliased installs rather than importing these type-only packages as JavaScript.

Correct the inherited typeScriptVersion: 5.1 metadata to 5.4, the already-established minimum of Jest30 (https://jestjs.io/docs/upgrading-to-jest30). The original 5.1 compilation fails in upstream jest-mock declarations on esnext.disposable; no declaration API or dependency major was changed. The published Jest30 line remains unchanged and is tested with TypeScript5.4.5 and5.9.3.

Release changes

Changelog

1.0.0

First Stackline maintenance release based on @types/jest 30.0.0.
Preserve the declaration API, compatibility line, contributors and MIT license.
Add isolated TypeScript compilation tests, complete dependency audit, CodeQL and exact-artifact GitHub publication with provenance and immutable release evidence.

Release files and references

Package bytes, npm provenance and the immutable GitHub release were verified for this version. Security checks describe the reviewed release; documented compatibility risks and upstream reports are not blanket claims of resolution.