React Native Windows platform for React Native Harness — runs your harness tests against a deployed React Native Windows app.

Installation

npm install --save-dev @react-native-harness/platform-windows
# or
pnpm add -D @react-native-harness/platform-windows
# or
yarn add -D @react-native-harness/platform-windows

Usage

Add the Windows platform to your rn-harness.config.mjs:

import { windowsPlatform } from '@react-native-harness/platform-windows';

export default {
  entryPoint: './index.js',
  appRegistryComponentName: 'MyApp',
  runners: [
    windowsPlatform({
      name: 'windows',
      // Package.appxmanifest Identity/@Name
      packageName: 'MyApp',
    }),
  ],
};

Deploy the app before running the harness — the runner launches an already installed package, it does not build:

npx react-native run-windows --arch x64 --no-launch --no-packager
npx react-native-harness --harnessRunner windows

API

windowsPlatform(config)

Parameters:

• config.name — unique name for the runner.
• config.packageName — the app's Identity/@Name from Package.appxmanifest. Used to look the deployed package up with Get-AppxPackage.
• config.appId — the app's Application/@Id from Package.appxmanifest. Combined with the package family name into the AUMID used to launch the app. Defaults to App (the React Native Windows template value).
• config.processName — the app's process name (without .exe), for tracking whether it is still running. Defaults to packageName.

Requirements

• Windows 10/11 with the app already deployed (react-native run-windows).
• The harness Metro server reachable at the app's configured bundle URL (http://localhost:8081 by default).

Made with ❤️ at Callstack

react-native-harness is an open source project and will always remain free to use. If you think it's cool, please star it 🌟. Callstack is a group of React and React Native geeks, contact us at [email protected] if you need any help with these or just want to say hi!