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webpack-babel-jest

library1.0.4jsnpmunverified

A Jest preprocessor plugin that integrates Webpack and Babel for testing JavaScript files. Version 1.0.4 (latest) is deprecated in favor of modern Jest transform patterns. It works with old Jest configuration (scriptPreprocessor) and Babel-Jest, automatically ignoring CSS/SCSS/LESS imports. No active maintenance since 2016.

testing devops

npm install webpack-babel-jest

github ↗package ↗

INSTALL

IMPORT

SIG · WEBPACK-BABEL-JEST

webpack-babel-jest

testingjavascriptv1.0.4

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

✓ Not imported; configured via package.json jest.scriptPreprocessor

✗ import webpackBabelJest from 'webpack-babel-jest';

This is a preprocessor script, not a module you import directly.

scriptPreprocessor

✓ jest.scriptPreprocessor = '<rootDir>/node_modules/webpack-babel-jest';

✗ scriptPreprocessor: require('webpack-babel-jest')

Must be a string path, not a module reference.

Shows typical package.json configuration for using this preprocessor with Jest.

// package.json { "devDependencies": { "webpack-babel-jest": "*", "jest-cli": "*" }, "scripts": { "test": "jest" }, "jest": { "scriptPreprocessor": "<rootDir>/node_modules/webpack-babel-jest", "testFileExtensions": ["es6", "js"], "moduleFileExtensions": ["js", "json", "es6"] } }

Debug

Known issues

deprecatedThis package is unmaintained and relies on old Jest APIs.

fix

Use modern Jest transform: transform: { '^.+\\.js$': 'babel-jest' }

affects: *

breakingJest v20+ removed scriptPreprocessor; you must use transform instead.

fix

Remove scriptPreprocessor, use transform: { '^.+\\.js$': 'babel-jest' }

affects: >=20

Errors

Common errors & fixes

Could not find module 'webpack-babel-jest' from 'rootDir'

Incorrect path or module not installed in project root.

fix

Install locally: npm install --save-dev webpack-babel-jest; check node_modules path.

Cannot find module 'babel-jest'

babel-jest is a required peer dependency not installed.

fix

Install babel-jest: npm install --save-dev babel-jest

Upgrade

Version history

1.0.4latest on npm

Audit

Dependencies

babel-jestrequiredCore dependency for Babel transformation

Agent activity

17 hits · last 30 days

node

Resources

githubhttps://github.com/atecarlos/webpack-babel-jest ↗

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