ansible/test/integration/targets/handlers/test_flush_in_rescue_always.yml

- hosts: A,B
  gather_facts: false
  tasks:
    - block:
        - name: EXPECTED_FAILURE
          fail:
          when: inventory_hostname == 'A'
      rescue:
        - command: echo
          notify: handler_rescue

        - meta: flush_handlers

        - set_fact:
            was_in_rescue: true

        - name: EXPECTED_FAILURE
          fail:
      always:
        - assert:
            that:
              - hostvars['A']['was_in_rescue']|default(false)
            success_msg: lockstep works

        - command: echo
          notify: handler_always

        - meta: flush_handlers
  handlers:
    - name: handler_rescue
      debug:
        msg: handler ran in rescue
    - name: handler_always
      debug:
        msg: handler ran in always