Start application during Heroku CI

Question

I want to implement integration/e2e tests during Heroku CI phase (which runs for each PR). Tests are connecting to a running server by REST API.

How can I do the DB migration and server startup during CI run (something similar to a review app)? I am using an in-dyno postgres .

Answer 1

I've tried setting the following in app.json :

  "environments": {
    "test": {
      "addons": ["heroku-postgresql:in-dyno"],
      "scripts": {
        "test-setup": "mvn package -P no-tests && bash migrate.sh",
        "test": "bash server.sh && mvn test"
      }
    }
  }

This works, but the CI instance does not close, as the server is still running, timing out after 2 hours. Not cost efficient, so I ended up embedding the server instantiation in the integration tests, which is automatically closed once the tests finish.

Final app.json :

  "environments": {
    "test": {
      "addons": ["heroku-postgresql:in-dyno"],
      "scripts": {
        "test-setup": "mvn package -P no-tests && bash migrate.sh",
        "test": "mvn test"
      }
    }
  }