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Last updated on : 09 Jan 2026

Jest - Mobile Testing Documentation

Jest is a JavaScript testing framework designed to ensure correctness of any JavaScript codebase. It works seamlessly with projects using Babel, TypeScript, Node, React, Angular, Vue, and more. Jest is well-documented, requires minimal configuration, and can be extended to match your testing requirements.

Key Features:

  • Approachable and feature-rich API for quick test results
  • Minimal setup and configuration required
  • Supports mobile app testing on both iOS and Android platforms via Pcloudy
  • Integrates easily with modern JavaScript projects
  • Extensible to match specific project requirements

Prerequisites

Before setting up Jest for mobile testing, ensure you have:

  1. Node.js and NPM - Latest versions recommended
  2. Pcloudy Account - Active account with valid credentials
  3. API Access Key - Available in your account profile or Quick Actions tab
  4. Mobile App Upload - Your Android (.apk) or iOS (.ipa) application uploaded to Pcloudy via the web interface
  5. Project Files - Access to your test project repository

Setup Instructions

1. Install Dependencies

Navigate to your project directory and run the following command to install required packages (including Jest) from package.json:

npm i

2. Configure Test Environment

Edit the singleDevice.test.js file with your credentials. The sample below shows the basic structure—refer to the Capability Generator page for a complete customized configuration tailored to your needs:

Pcloudy_Username = "your-email@example.com"
Pcloudy_ApiKey = "your-api-access-key"

Configuration Parameters:

  • Pcloudy_Username: Your registered email address

  • Pcloudy_ApiKey: Your API access key (found in account profile or Quick Actions tab)

Running Tests

Single Device Execution

Open the terminal in your project directory and execute:

npm test singleDevice.test.js

This command will launch the Jest test suite on a single mobile device in the Pcloudy cloud.

Troubleshooting

Common Issues:

  • Authentication failed - Verify your username and API key are correct in the test file

  • App not found - Ensure the app is uploaded and filename matches exactly in configuration

  • Device not available - Check device name spelling or try a different device

  • Dependencies not installed - Run npm i to ensure all packages are installed

Additional Resources

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