Next.js is supported natively on Netlify, and in most cases you will not need to install or configure anything. This repo includes the packages used to support Next.js on Netlify.

How to add new integration test scenarios to the application:

1. Create a new folder under tests/fixtures/<your-name>
2. Adapt the next.config.js to be a standalone application
3. Create a postinstall script that runs the next build. It's important to notice that the integration tests rely on a already built next.js application in this folder. They rely on the .next folder.
4. Add your test

Currently the tests require a built version of the dist/run/handlers/cache.cjs so you need to run npm run build before executing the integration tests. In addition, the integration tests need to be prepared before first use. You can do this by running npm run pretest.

Prerequisite

Needs the netlify-cli installed and being logged in having access to Netlify Testing Organization

The e2e tests can be invoked with npm run e2e and perform a full e2e test. This means they do the following:

1. Building the next-runtime (just running npm run build in the repository)
2. Creating a temp directory and copying the provided fixture over to the directory.
3. Packing the runtime with npm pack to the temp directory.
4. Installing the runtime from the created zip artifact of npm pack (this is like installing a node_module from the registry)
5. Creating a netlify.toml inside the temp directory of the fixture and adding the runtime as a plugin.
6. Running netlify deploy --build invoking the runtime. This will use the next-runtime-testing as site to deploy to.
7. Using the deployId and url of the deployed site to run some playwright tests against, asserting the correctness of the runtime.
8. After the tests where run successfully, it will delete the deployment again and clean everything up. In case of a failure, the deploy won't be cleaned up to leave it for troubleshooting purposes.

To cleanup old and dangling deploys from failed builds you can run the following script:

npx tsx ./tools/e2e/cleanup-deploys.ts

This will cleanup all created deploys on the next-runtime-testing site.