eslint-plugin-jest-react

0.1.0 verified Sat Apr 25 auth: no javascript maintenance

An ESLint plugin providing linting rules for Jest tests in React projects. Current stable version is 0.1.0, with low release cadence (last update likely stale). Key differentiator: combines Jest and React specific rules. However, the official community ESLint Jest plugin (eslint-plugin-jest) is more actively maintained and recommended; this plugin may have niche value only for the `no-mocking-react` rule.

Common errors

error Error: Failed to load plugin 'jest-react' ↓

cause Missing peer dependency 'eslint' or plugin not installed.

fix

Run: yarn add --dev eslint eslint-plugin-jest-react

error Configuration for rule 'jest-react/no-mocking-react' is invalid ↓

cause Rule configured with wrong severity or extra options.

fix

Use standard severity: 'off', 'warn', or 'error'.

error Parsing error: 'import' and 'export' may only appear at the top level ↓

cause ESLint parser does not support ES modules by default.

fix

Add 'parserOptions: { sourceType: 'module' }' in ESLint config.

Warnings

breaking Plugin is not maintained; last update over 2 years ago. Consider using active alternatives like eslint-plugin-jest. ↓

fix Switch to eslint-plugin-jest and eslint-plugin-testing-library for React testing patterns.

deprecated eslint-plugin-jest-react may not work with ESLint >= 9 due to config changes (flat config). ↓

fix Use ESLint 8 with .eslintrc format, or migrate to flat config with compatible plugins.

gotcha The recommended config 'plugin:jest-react/recommended' may enable rules that conflict with Jest's environment or other ESLint rules. ↓

fix Review each rule after extending the recommended config, and disable/override as needed.

Install

npm install eslint-plugin-jest-react

yarn add eslint-plugin-jest-react

pnpm add eslint-plugin-jest-react

Imports

plugin:jest-react/recommended
wrong
```
plugins: ['jest-react'] without extends
```
correct
```
extends: ['plugin:jest-react/recommended']
```
Use the recommended config to enable all rules with sensible defaults.

Rules (e.g., jest-react/no-mocking-react)

wrong

plugins: ['jest-react'] but not adding rules

correct

{
  "rules": {
    "jest-react/no-mocking-react": "warn"
  }
}

Rules are prefixed with 'jest-react/' in ESLint configs.

Plugin declaration
wrong
```
plugins: ['eslint-plugin-jest-react']
```
correct
```
plugins: ['jest-react']
```
ESLint automatically shortens the plugin name; you only need 'jest-react'.

Quickstart

Shows how to install and configure the plugin in ESLint to lint Jest tests in React projects.

// Install: yarn add --dev eslint eslint-plugin-jest-react
// .eslintrc.js
module.exports = {
  plugins: ['jest-react'],
  extends: ['plugin:jest-react/recommended'],
  rules: {
    'jest-react/no-mocking-react': 'error'
  }
};