ansible/test/integration/roles/test_yum/tasks/yum.yml

# UNINSTALL
- name: uninstall sos
  yum: name=sos state=removed
  register: yum_result

- name: check sos with rpm
  shell: rpm -q sos
  failed_when: False
  register: rpm_result

- debug: var=yum_result
- debug: var=rpm_result

- name: verify uninstalltion of sos
  assert:
    that: 
        - "yum_result.rc == 0"
        - "rpm_result.rc == 1"

# UNINSTALL AGAIN
- name: uninstall sos again
  yum: name=sos state=removed
  register: yum_result

- name: verify no change on re-uninstall
  assert:
    that: 
        - "not yum_result.changed"

# INSTALL
- name: install sos
  yum: name=sos state=present
  register: yum_result

- name: check sos with rpm
  shell: rpm -q sos
  failed_when: False
  register: rpm_result

- debug: var=yum_result
- debug: var=rpm_result

- name: verify installation of sos
  assert:
    that: 
        - "yum_result.rc == 0"
        - "yum_result.changed"
        - "rpm_result.rc == 0"

- name: verify yum module outputs
  assert:
    that:
        - "'invocation' in yum_result"
        - "'changed' in yum_result"
        - "'item' in yum_result"
        - "'msg' in yum_result"
        - "'rc' in yum_result"
        - "'results' in yum_result"

# INSTALL AGAIN        
- name: install sos again
  yum: name=sos state=present
  register: yum_result

- name: verify no change on second install
  assert:
    that: 
        - "not yum_result.changed"