React 19 Compatibility Test

This directory contains end-to-end tests to verify Gatsby's compatibility with React 19.

Running the Tests

1. Install dependencies:

   bashCopy

   npm install
   

2. Run the tests:

   bashCopy

   npm test
   

Test Cases

1. Development Server

   • Verifies that the development server starts with React 19
   • Tests React 19 state updates and hooks
   • Tests error boundaries with React 19

2. Production Build

   • Verifies that the production build completes successfully with React 19
   • Checks for the existence of expected output files

Dependencies

• React 19.0.0 or later
• React DOM 19.0.0 or later
• Gatsby (linked to local development version)