This is a Next.js project bootstrapped with create-next-app --typescript. I made it to showcase an issue with next.js's custom-server functionality and integration testing with jest.

Getting Started

First, run the development server:

npm run dev

Confirm that both API endpoints work as intended:

• http://localhost:3000/api/hello
• http://localhost:3000/api/world

should both respond with the same JSON payload.

Then, try to run the integration test sample:

npm run test

Notice that the second request ALWAYS fails, no matter which one it is, because next seems to only wire up the first route that is being accessed.