Registry / testing / jest-webpack-resolver

jest-webpack-resolver

library0.3.0jsnpmunverified

Jest plugin that replaces Jest's default module resolution with Webpack's resolver using the project's webpack.config.js. Version 0.3.0 is the latest stable release; the package is no longer actively maintained. It supports Jest >=20 and resolves Webpack features like aliases, extensions, modules, mainFields, and plugins. Unlike manual mocking, it allows Jest to mirror Webpack's resolve behavior automatically.

testing devops

npm install jest-webpack-resolver

github ↗package ↗

INSTALL

IMPORT

SIG · JEST-WEBPACK-RESOL

jest-webpack-resolver

testingjavascriptv0.3.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ no import needed; set resolver in Jest config

✗ const resolver = require('jest-webpack-resolver');

Not imported directly; configured via Jest's 'resolver' option

Configures Jest to use Webpack resolver with custom webpack config and silent mode.

// package.json { "jest": { "resolver": "jest-webpack-resolver", "jestWebpackResolver": { "webpackConfig": "./webpack.config.js", "silent": true } } } // webpack.config.js module.exports = { resolve: { alias: { Components: './src/components' }, extensions: ['.js', '.jsx'] } }; // Then run: npx jest

Debug

Known issues

breakingjest >=20.0.0 required; older versions lack resolver option

fix

Upgrade Jest to version 20 or later

affects: <20

gotchaWebpack config must export an object or a function returning an object

fix

Ensure webpack.config.js returns a valid webpack configuration

affects: >=0.1.0

deprecatedPackage is no longer actively maintained; consider alternatives like jest-webpack-resolution or custom resolver

fix

Migrate to actively maintained alternatives

affects: >=0.3.0

gotchaThe resolver only supports a single webpack config; multiple configs not supported

fix

Merge configs or use a custom resolver

affects: >=0.1.0

Errors

Common errors & fixes

Cannot find module 'jest-webpack-resolver'

Package not installed or missing from devDependencies

fix

npm install jest-webpack-resolver --save-dev

Configuration error: unknown option 'jestWebpackResolver'

jestWebpackResolver option placed under incorrect key in Jest config

fix

Place jestWebpackResolver at root level of package.json or jest.config

Webpack Resolver using: ./webpack.config.js (not found)

webpackConfig path is incorrect or file does not exist

fix

Ensure webpackConfig points to an existing webpack configuration file

Upgrade

Version history

0.3.0latest on npm

Audit

Dependencies

jestrequiredPeer dependency, required for resolver hook

Agent activity

6 hits · last 30 days

node

Resources

githubhttps://github.com/mkg0/jest-webpack-resolver ↗

packagehttps://www.npmjs.com/package/jest-webpack-resolver ↗