zuul/tests/fixtures/layouts/empty-check.yaml

- pipeline:
    name: check
    manager: independent
    trigger:
      gerrit:
        - event: patchset-created
    success:
      gerrit:
        Verified: 1
    failure:
      gerrit:
        Verified: -1

- job:
    name: base
    parent: null
    run: playbooks/base.yaml

- project:
    name: org/project
    check:
      jobs: []