apt_repository_mode.yml

- hosts: all
  vars:
    repo_file: '/etc/apt/sources.list.d/ppa_jal233_proot_trusty.list'

  tasks:
    - name: 'Remove repo file'
      file:
        path: '{{ repo_file }}'
        state: 'absent'

    - name: 'Install apt repo with mode:0400'
      apt_repository:
        repo: 'ppa:jal233/proot'
        mode: '0400'

    - name: 'stat the repo_file'
      stat:
        path: '{{ repo_file }}'
      register: before_stat

    - name: 'Install apt repo with mode:0644 perms'
      apt_repository:
        repo: 'ppa:jal233/proot'
        mode: '0400'
      register: result

    - name: 'stat the repo_file'
      stat:
        path: '{{ repo_file }}'
      register: after_stat

    - assert:
        that:
          - "'{{ before_stat.stat.mode }}' == '0400'"
          - "'{{ after_stat.stat.mode }}' == '0644'"
          - '{{ result.changed }}'