ansible/test/integration/targets/lookup_subelements/tasks/main.yml

- name: test with_subelements
  set_fact: "{{ '_'+ item.0.id + item.1 }}={{ item.1 }}"
  with_subelements:
    - "{{element_data}}"
    - the_list

- name: verify with_subelements results
  assert:
    that:
        - "_xf == 'f'"
        - "_xd == 'd'"
        - "_ye == 'e'"
        - "_yf == 'f'"

- name: test with_subelements in subkeys
  set_fact: "{{ '_'+ item.0.id + item.1 }}={{ item.1 }}"
  with_subelements:
    - "{{element_data}}"
    - the.sub.key.list

- name: verify with_subelements in subkeys results
  assert:
    that:
        - "_xq == 'q'"
        - "_xr == 'r'"
        - "_yi == 'i'"
        - "_yo == 'o'"

- name: test with_subelements with missing key or subkey
  set_fact: "{{ '_'+ item.0.id + item.1 }}={{ item.1 }}"
  with_subelements:
    - "{{element_data_missing}}"
    - the.sub.key.list
    - skip_missing: yes
  register: _subelements_missing_subkeys

- debug: var=_subelements_missing_subkeys
- debug: var=_subelements_missing_subkeys.results|length
- name: verify with_subelements in subkeys results
  assert:
    that:
        - _subelements_missing_subkeys.skipped is not defined
        - _subelements_missing_subkeys.results|length == 2
        - "_xk == 'k'"
        - "_xl == 'l'"