ansible/test/integration/targets/filesystem/tasks/create_fs.yml

- name: filesystem creation
  filesystem:
    dev: '{{ dev }}'
    fstype: '{{ fstype }}'
  register: fs_result

- assert:
    that:
      - 'fs_result is changed'
      - 'fs_result is success'

- command: 'blkid -c /dev/null -o value -s UUID {{ dev }}'
  register: uuid

- name: "Check that filesystem isn't created if force isn't used"
  filesystem:
    dev: '{{ dev }}'
    fstype: '{{ fstype }}'
  register: fs2_result

- command: 'blkid -c /dev/null -o value -s UUID {{ dev }}'
  register: uuid2

- assert:
    that:
      - 'not (fs2_result is changed)'
      - 'fs2_result is success'
      - 'uuid.stdout == uuid2.stdout'

- name: Check that filesystem is recreated if force is used
  filesystem:
    dev: '{{ dev }}'
    fstype: '{{ fstype }}'
    force: yes
  register: fs3_result

- command: 'blkid -c /dev/null -o value -s UUID {{ dev }}'
  register: uuid3

- assert:
    that:
      - 'fs3_result is changed'
      - 'fs3_result is success'
      - 'uuid.stdout != uuid3.stdout'

- name: increase fake device
  shell: 'dd if=/dev/zero bs=1M count=20 >> {{ image_file }}'

- when: 'grow|bool and (fstype != "vfat" or resize_vfat)'
  block:
  - name: Expand filesystem
    filesystem:
      dev: '{{ dev }}'
      fstype: '{{ fstype }}'
      resizefs: yes
    register: fs4_result

  - command: 'blkid -c /dev/null -o value -s UUID {{ dev }}'
    register: uuid4

  - assert:
      that:
        - 'fs4_result is changed'
        - 'fs4_result is success'
        - 'uuid3.stdout == uuid4.stdout' # unchanged

  - name: Try to expand filesystem again
    filesystem:
      dev: '{{ dev }}'
      fstype: '{{ fstype }}'
      resizefs: yes
    register: fs5_result

  - assert:
      that:
        - 'not (fs5_result is changed)'
        - 'fs5_result is successful'