ansible/test/integration/targets/dnf/tasks/modularity.yml

- name: install "@postgresql:9.6/client" module
  dnf:
    name: "@postgresql:9.6/client"
    state: present
  register: dnf_result

- name: verify installation of "@postgresql:9.6/client" module
  assert:
    that:
        - "not dnf_result.failed"
        - "dnf_result.changed"

- name: install "@postgresql:9.6/client" module again
  dnf:
    name: "@postgresql:9.6/client"
    state: present
  register: dnf_result

- name: verify installation of "@postgresql:9.6/client" module again
  assert:
    that:
        - "not dnf_result.failed"
        - "not dnf_result.changed"

- name: uninstall "@postgresql:9.6/client" module
  dnf:
    name: "@postgresql:9.6/client"
    state: absent
  register: dnf_result

- name: verify uninstallation of "@postgresql:9.6/client" module
  assert:
    that:
        - "not dnf_result.failed"
        - "dnf_result.changed"

- name: uninstall "@postgresql:9.6/client" module again
  dnf:
    name: "@postgresql:9.6/client"
    state: install
  register: dnf_result

- name: verify uninstallation of "@postgresql:9.6/client" module again
  assert:
    that:
        - "not dnf_result.failed"
        - "not dnf_result.changed"