community.general/test/integration/targets/win_power_plan/tasks/main.yml

# I dislike this but 2008 doesn't support the Win32_PowerPlan WMI provider
- name: get current plan details
  win_shell: |
      $plan_info = powercfg.exe /list
      ($plan_info | Select-String -Pattern '\(([\w\s]*)\) \*$').Matches.Groups[1].Value
      ($plan_info | Select-String -Pattern '\(([\w\s]*)\)$').Matches.Groups[1].Value      
  register: plan_info

- set_fact:
    original_plan: '{{ plan_info.stdout_lines[0] }}'
    name: '{{ plan_info.stdout_lines[1] }}'

- block:
  #Test that plan detects change is needed, but doesn't actually apply change
  - name: set power plan (check mode)
    win_power_plan:
      name: "{{ name }}"
    register: set_plan_check
    check_mode: yes

  - name: get result of set power plan (check mode)
    win_shell: (powercfg.exe /list | Select-String -Pattern '\({{ name }}\)').Line
    register: set_plan_check_result
    changed_when: False

  # verify that the powershell check is showing the plan as still inactive on the system
  - name: assert setting plan (check mode)
    assert:
      that:
      - set_plan_check is changed
      - not set_plan_check_result.stdout_lines[0].endswith('*')

  #Test that setting plan and that change is applied
  - name: set power plan
    win_power_plan:
      name: "{{ name }}"
    register: set_plan

  - name: get result of set power plan
    win_shell: (powercfg.exe /list | Select-String -Pattern '\({{ name }}\)').Line
    register: set_plan_result
    changed_when: False

  - name: assert setting plan
    assert:
      that:
      - set_plan is changed
      - set_plan_result.stdout_lines[0].endswith('*')

  #Test that plan doesn't apply change if it is already set
  - name: set power plan (idempotent)
    win_power_plan:
      name: "{{ name }}"
    register: set_plan_idempotent

  - name: assert setting plan (idempotent)
    assert:
      that:
      - set_plan_idempotent is not changed

  always:
  - name: always change back plan to the original when done testing
    win_power_plan:
      name: '{{ original_plan }}'