ansible/test/results_list.yml

---
# Test iterating over lines of stdout stored in a register.
- hosts: localhost
  vars:
    small_file: /etc/resolv.conf
    temp_file: /tmp/ansible_result_list.tmp

  tasks:
  - action: command cat $small_file
    register: result

  - action: file dest=$temp_file state=absent

  - action: shell echo '$item' >> $temp_file
    with_items: ${result.stdout_lines}

  - action: command diff $small_file $temp_file

  - action: file dest=$temp_file state=absent