---
- name: Ensure idempotency installed
  ansible.builtin.package:
    name: patch
  when: ansible_distribution != "MacOSX"

- name: Create a directory for the result
  ansible.builtin.file:
    dest: "{{ output_dir }}/patch"
    state: directory
    mode: "0755"
  register: result

- name: Assert the directory was created
  ansible.builtin.assert:
    that:
      - result.state == 'directory'

- name: Copy the origin file
  ansible.builtin.copy:
    src: ./origin.txt
    dest: "{{ output_dir }}/patch/workfile.txt"
    mode: "0644"
  register: result

- name: Patch the origin file in check mode
  check_mode: true
  register: result
  ansible.posix.patch:
    src: result.patch
    dest: "{{ output_dir }}/patch/workfile.txt"

- name: Verify patch the origin file in check mode
  ansible.builtin.assert:
    that:
      - result is changed

- name: Patch the origin file
  register: result
  ansible.posix.patch:
    src: result.patch
    dest: "{{ output_dir }}/patch/workfile.txt"

- name: Verify patch the origin file
  ansible.builtin.assert:
    that:
      - result is changed

- name: Test patch the origin file idempotency
  register: result
  ansible.posix.patch:
    src: result.patch
    dest: "{{ output_dir }}/patch/workfile.txt"
- name: Verify test patch the origin file idempotency
  ansible.builtin.assert:
    that:
      - result is not changed

- name: Verify the resulted file matches expectations
  ansible.builtin.copy:
    src: ./result.txt
    dest: "{{ output_dir }}/patch/workfile.txt"
    mode: "0644"
  register: result
  failed_when: result is changed

- name: Patch the workfile file in check mode state absent
  check_mode: true
  register: result
  ansible.posix.patch:
    src: result.patch
    dest: "{{ output_dir }}/patch/workfile.txt"
    state: absent

- name: Verify patch the workfile file in check mode state absent
  ansible.builtin.assert:
    that:
      - result is changed

- name: Patch the workfile file state absent
  register: result
  ansible.posix.patch:
    src: result.patch
    dest: "{{ output_dir }}/patch/workfile.txt"
    state: absent

- name: Verify patch the workfile file state absent
  ansible.builtin.assert:
    that:
      - result is changed

- name: Patch the workfile file state absent idempotency
  register: result
  ansible.posix.patch:
    src: result.patch
    dest: "{{ output_dir }}/patch/workfile.txt"
    state: absent

- name: Verify patch the workfile file state absent idempotency
  ansible.builtin.assert:
    that:
      - result is not changed

- name: Verify the resulted file matches expectations
  ansible.builtin.copy:
    src: ./origin.txt
    dest: "{{ output_dir }}/patch/workfile.txt"
    mode: "0644"
  register: result
  failed_when: result is changed

- name: Copy the origin file whitespace
  ansible.builtin.copy:
    src: ./origin.txt
    dest: "{{ output_dir }}/patch/workfile_whitespace.txt"
    mode: "0644"
  register: result

- name: Patch the origin file
  register: result
  ansible.posix.patch:
    src: result_whitespace.patch
    dest: "{{ output_dir }}/patch/workfile_whitespace.txt"
    ignore_whitespace: true
- name: Verify patch the origin file
  ansible.builtin.assert:
    that:
      - result is changed

- name: Test patch the origin file idempotency
  register: result
  ansible.posix.patch:
    src: result_whitespace.patch
    dest: "{{ output_dir }}/patch/workfile_whitespace.txt"
    ignore_whitespace: true
- name: Verify test patch the origin file idempotency
  ansible.builtin.assert:
    that:
      - result is not changed

- name: Verify the resulted file matches expectations
  ansible.builtin.copy:
    src: ./result_whitespace.txt
    dest: "{{ output_dir }}/patch/workfile_whitespace.txt"
    mode: "0644"
  register: result
  failed_when: result is changed