To run these tests, run:

npm test

To run locally, do:

npm run test-local

If a reference PDF doesn't exist it will be created if you run this command while the tests run:

node tests/utils/reference-server.js

This generates and collects reference PDFs from real browsers. This should be done before refactoring a plugin or component to ensure output is exactly identical.

This will in future also allow us to create reference images to compare against visually.