ansible/test/integration/targets/user/tasks/test_create_user_uid.yml

# test adding user with uid
# https://github.com/ansible/ansible/issues/62969
- name: remove the test user
  user:
    name: ansibulluser
    state: absent

- name: try to create a user with uid
  user:
    name: ansibulluser
    state: present
    uid: 572
  register: user_test01_0

- name: create the user again
  user:
    name: ansibulluser
    state: present
    uid: 572
  register: user_test01_1

- name: validate results for testcase 0
  assert:
    that:
      - user_test01_0 is changed
      - user_test01_1 is not changed