This directory contains integration tests to verify that @googlemaps/js-api-loader works correctly with popular JavaScript bundlers without requiring any configuration from consumers.

The @googlemaps/js-api-loader library has a development-mode (based on process.env.NODE_ENV checks) that toggle detailed warning messages during development.

The tests in this directory ensure that some of the most popular bundlers correctly handle the development mode in a default configuration.

1. Vite - Correctly replaces process.env.NODE_ENV via its built-in define config
2. Webpack - Correctly replaces it via DefinePlugin (default behavior)
3. Rollup - Works with standard @rollup/plugin-replace configuration

The tests verify both modes:

• Production mode: process.env.NODE_ENV is replaced, dev warnings are removed
• Development mode: process.env.NODE_ENV is replaced with "development", dev warnings are preserved

./test-all.sh

cd vite-test
npm install
npm install $(npm pack --silent ../../)
npm run build

• Uses Vite's zero-config setup
• Relies on Vite's automatic process.env.NODE_ENV replacement
• development mode is approximated by disabling minification and building with NODE_ENV='development' vite build --mode development

• Uses Webpack 5 with minimal config
• Relies on DefinePlugin (enabled by default in production mode)

• Uses standard Rollup with @rollup/plugin-replace
• Represents how users typically configure Rollup

All tests should pass with:

✓ All bundler tests passed!

If any test fails, it means the library is shipping code that won't work correctly in that bundler without additional user configuration.