ansible/test/test_hash_behavior/playbook.yml

---
- hosts: all
  connection: local

  vars_files:
    - hello.yml
    - goodbye.yml

  tasks:
    - name: generate messages
      action: template src=message.j2 dest=/tmp/ansible_test_messages.out

  roles:
    - role: hash_behavior_test_role
      messages:
        inside_a_role: "Indeed!"