# README - even the name of the tasks matter in this test, see callback_plugins/callback_host_count.py
- hosts: all
  gather_facts: false
  strategy: host_pinned
  pre_tasks:
    # by executing in pre_tasks we ensure that "start" is the first task in the play,
    # not an implicit "meta: flush_handlers" after pre_tasks
    - name: start
      debug:
        msg: start

    - ping:

    - meta: noop
  post_tasks:
    # notifying a handler in post_tasks ensures the handler is the last task in the play,
    # not an implicit "meta: flush_handlers" after post_tasks
    - debug:
      changed_when: true
      notify: end
  handlers:
    - name: end
      debug:
        msg: end

- hosts: localhost0,localhost1,localhost2
  gather_facts: false
  strategy: host_pinned
  pre_tasks:
    - name: start
      debug:
        msg: start

    - command: sleep 3
      when: inventory_hostname == "localhost0"

    - meta: noop
    - meta: noop
  post_tasks:
    - debug:
      changed_when: true
      notify: end
  handlers:
    - name: end
      debug:
        msg: end