---
- hosts: testhost
  gather_facts: false
  tasks:
    - include_tasks: "include_tasks.yml"
      ignore_errors: True
      register: "_include_tasks_result"
      when:
        - "_undefined == 'yes'"

    - assert:
        that:
          - "_include_tasks_result is failed"
          - "_include_tasks_task_result is not defined"
        msg: "'include_tasks' did not evaluate it's attached condition and failed"

    - include_role:
        name: "no_log"
      ignore_errors: True
      register: "_include_role_result"
      when:
        - "_undefined == 'yes'"

    - assert:
        that:
          - "_include_role_result is failed"
        msg: "'include_role' did not evaluate it's attached condition and failed"

    - import_tasks: include_that_defines_var.yml
      when:
        - "_undefined == 'yes'"

    - assert:
        that:
          - _include_defined_result == 'good'