- name: download and install old version of hello
  apt: "deb=https://launchpad.net/ubuntu/+archive/primary/+files/hello_{{ hello_old_version }}_amd64.deb"

- name: freeze version for hello
  dpkg_selections:
    name: hello
    selection: hold

- name: get dpkg selections
  shell: "dpkg --get-selections | grep hold"
  register: result

- debug: var=result

- name: check that hello is marked as hold
  assert:
    that:
      - "'hello' in result.stdout"

- name: attempt to upgrade hello
  apt:
    name: hello
    state: latest
  ignore_errors: yes

- name: check hello version
  shell: dpkg -s hello | grep Version | awk '{print $2}'
  register: hello_version

- name: ensure hello was not upgraded
  assert:
    that:
      - "{{ hello_version.stdout }} == {{ hello_old_version }}"

- name: remove version freeze
  dpkg_selections:
    name: hello
    selection: install

- name: upgrade hello
  apt:
    name: hello
    state: latest

- name: check hello version
  shell: dpkg -s hello | grep Version | awk '{print $2}'
  register: hello_version

- name: check that old version upgraded correctly
  assert:
    that:
      - "{{ hello_version.stdout }}!={{ hello_old_version }}"

- name: set hello to deinstall
  dpkg_selections:
    name: hello
    selection: deinstall

- name: get dpkg selections
  shell: "dpkg --get-selections | grep deinstall"
  register: result

- debug: var=result

- name: check that hello is marked as deinstall
  assert:
    that:
      - "'hello' in result.stdout"

- name: set hello to purge
  dpkg_selections:
    name: hello
    selection: purge

- name: get dpkg selections
  shell: "dpkg --get-selections | grep purge"
  register: result

- debug: var=result

- name: check that hello is marked as purge
  assert:
    that:
      - "'hello' in result.stdout"

- name: remove hello
  apt:
    name: hello
    state: absent