ansible/test/integration/roles/test_handlers/tasks/main.yml

# test code for the async keyword
# (c) 2014, James Tanner <tanner.jc@gmail.com>

# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.


- name: reset handler_called variable to false for all hosts
  set_fact:
    handler_called: False
  tags: scenario1

- name: notify the handler for host A only
  shell: echo
  notify: 
    - set handler fact
  when: inventory_hostname == 'A'
  tags: scenario1

- name: force handler execution now
  meta: "flush_handlers"
  tags: scenario1

- debug: var=handler_called
  tags: scenario1

- name: validate the handler only ran on one host
  assert:
    that:
    - "inventory_hostname == 'A' and handler_called == True or handler_called == False"
  tags: scenario1

- name: 'test notify with loop'
  debug: msg='a task'
  changed_when: item == 1
  notify: test handler
  with_items:
      - 1
      - 2
  tags: scenario2