community.general/tests/integration/targets/alternatives/tasks/tests_state.yml

# Add a few dummy alternatives with state = present and make sure that the
# group is in 'auto' mode and the highest priority alternative is selected.
- name: Add some dummy alternatives with state = present
  alternatives:
    name: dummy
    path: "/usr/bin/dummy{{ item.n }}"
    link: /usr/bin/dummy
    priority: "{{ item.priority }}"
    state: present
  loop:
    - { n: 1, priority: 50 }
    - { n: 2, priority: 70 }
    - { n: 3, priority: 25 }

- name: Ensure that the link group is in auto mode
  shell: 'head -n1 {{ alternatives_dir }}/dummy | grep "^auto$"'

# Execute current selected 'dummy' and ensure it's the alternative we expect
- name: Execute the current dummy command
  shell: dummy
  register: cmd

- name: Ensure that the expected command was executed
  assert:
    that:
      - cmd.stdout == "dummy2"

# Add another alternative with state = 'selected' and make sure that
# this change results in the group being set to manual mode, and the
# new alternative being the selected one.
- name: Add another dummy alternative with state = selected
  alternatives:
    name: dummy
    path: /usr/bin/dummy4
    link: /usr/bin/dummy
    priority: 10
    state: selected

- name: Ensure that the link group is in manual mode
  shell: 'head -n1 {{ alternatives_dir }}/dummy | grep "^manual$"'

- name: Execute the current dummy command
  shell: dummy
  register: cmd

- name: Ensure that the expected command was executed
  assert:
    that:
      - cmd.stdout == "dummy4"

# Set the currently selected alternative to state = 'present' (was previously
# selected), and ensure that this results in the group not being set to 'auto'
# mode, and the alternative is still selected.
- name: Set current selected dummy to state = present
  alternatives:
    name: dummy
    path: /usr/bin/dummy4
    link: /usr/bin/dummy
    state: present

- name: Ensure that the link group is in auto mode
  shell: 'head -n1 {{ alternatives_dir }}/dummy | grep "^manual$"'

- name: Execute the current dummy command
  shell: dummy
  register: cmd

- name: Ensure that the expected command was executed
  assert:
    that:
      - cmd.stdout == "dummy4"

# Set the currently selected alternative to state = 'auto' (was previously
# selected), and ensure that this results in the group being set to 'auto'
# mode, and the highest priority alternative is selected.
- name: Set current selected dummy to state = present
  alternatives:
    name: dummy
    path: /usr/bin/dummy4
    link: /usr/bin/dummy
    state: auto

- name: Ensure that the link group is in auto mode
  shell: 'head -n1 {{ alternatives_dir }}/dummy | grep "^auto$"'

- name: Execute the current dummy command
  shell: dummy
  register: cmd

- name: Ensure that the expected command was executed
  assert:
    that:
      - cmd.stdout == "dummy2"

# Remove an alternative with state = 'absent' and make sure that
# this change results in the alternative being removed.
- name: Remove best dummy alternative with state = absent
  alternatives:
    name: dummy
    path: /usr/bin/dummy2
    state: absent

- name: Ensure that the link group is in auto mode
  shell: 'grep "/usr/bin/dummy2" {{ alternatives_dir }}/dummy'
  register: cmd
  failed_when: cmd.rc == 0

- name: Execute the current dummy command
  shell: dummy
  register: cmd

- name: Ensure that the expected command was executed
  assert:
    that:
      - cmd.stdout == "dummy1"