---
- name: the first play
  hosts: localhost
  tasks:
    - name: show foobar fact before
      debug:
        var: ansible_foobar

    - name: set a persistent fact foobar
      set_fact:
        ansible_foobar: 'foobar_from_set_fact_cacheable'
        cacheable: true

    - name: show foobar fact after
      debug:
        var: ansible_foobar

    - name: assert ansible_foobar is correct value
      assert:
        that:
          - ansible_foobar == 'foobar_from_set_fact_cacheable'

    - name: set a non persistent fact that will not be cached
      set_fact:
        ansible_foobar_not_cached: 'this_should_not_be_cached'

    - name: show ansible_foobar_not_cached fact after being set
      debug:
        var: ansible_foobar_not_cached

    - name: assert ansible_foobar_not_cached is correct value
      assert:
        that:
          - ansible_foobar_not_cached == 'this_should_not_be_cached'

    - name: set another non persistent fact that will not be cached
      set_fact: "cacheable=no fact_not_cached='this_should_not_be_cached!'"

    - name: show fact_not_cached fact after being set
      debug:
        var: fact_not_cached

    - name: assert fact_not_cached is correct value
      assert:
        that:
          - fact_not_cached == 'this_should_not_be_cached!'

- name: the second play
  hosts: localhost
  tasks:
    - name: show foobar fact after second play
      debug:
        var: ansible_foobar

    - name: assert ansible_foobar is correct value
      assert:
        that:
          - ansible_foobar == 'foobar_from_set_fact_cacheable'

- name: show ansible_nodename
  hosts: localhost
  tasks:
    - name: show nodename fact after second play
      debug:
        var: ansible_nodename

- name: show ansible_nodename overridden with var
  hosts: localhost
  vars:
    ansible_nodename: 'nodename_from_play_vars'
  tasks:
    - name: show nodename fact after second play
      debug:
        var: ansible_nodename

- name: verify ansible_nodename from vars overrides the fact
  hosts: localhost
  vars:
    ansible_nodename: 'nodename_from_play_vars'
  tasks:
    - name: show nodename fact
      debug:
        var: ansible_nodename

    - name: assert ansible_nodename is correct value
      assert:
        that:
          - ansible_nodename == 'nodename_from_play_vars'

- name: set_fact ansible_nodename
  hosts: localhost
  tasks:
    - name: set a persistent fact nodename
      set_fact:
        ansible_nodename: 'nodename_from_set_fact_cacheable'

    - name: show nodename fact
      debug:
        var: ansible_nodename

    - name: assert ansible_nodename is correct value
      assert:
        that:
          - ansible_nodename == 'nodename_from_set_fact_cacheable'

- name: verify that set_fact ansible_nodename non_cacheable overrides ansible_nodename in vars
  hosts: localhost
  vars:
    ansible_nodename: 'nodename_from_play_vars'
  tasks:
    - name: show nodename fact
      debug:
        var: ansible_nodename

    - name: assert ansible_nodename is correct value
      assert:
        that:
          - ansible_nodename == 'nodename_from_set_fact_cacheable'

- name: verify that set_fact_cacheable in previous play overrides ansible_nodename in vars
  hosts: localhost
  vars:
    ansible_nodename: 'nodename_from_play_vars'
  tasks:
    - name: show nodename fact
      debug:
        var: ansible_nodename

    - name: assert ansible_nodename is correct value
      assert:
        that:
          - ansible_nodename == 'nodename_from_set_fact_cacheable'

- name: set_fact ansible_nodename cacheable
  hosts: localhost
  tasks:
    - name: set a persistent fact nodename
      set_fact:
        ansible_nodename: 'nodename_from_set_fact_cacheable'
        cacheable: true

    - name: show nodename fact
      debug:
        var: ansible_nodename

    - name: assert ansible_nodename is correct value
      assert:
        that:
          - ansible_nodename == 'nodename_from_set_fact_cacheable'


- name: verify that set_fact_cacheable in previous play overrides ansible_nodename in vars
  hosts: localhost
  vars:
    ansible_nodename: 'nodename_from_play_vars'
  tasks:
    - name: show nodename fact
      debug:
        var: ansible_nodename

    - name: assert ansible_nodename is correct value
      assert:
        that:
          - ansible_nodename == 'nodename_from_set_fact_cacheable'

- name: the fourth play
  hosts: localhost
  vars:
    ansible_foobar: 'foobar_from_play_vars'
  tasks:
    - name: show example fact
      debug:
        var: ansible_example

    - name: set a persistent fact example
      set_fact:
        ansible_example: 'foobar_from_set_fact_cacheable'
        cacheable: true

    - name: assert ansible_example is correct value
      assert:
        that:
          - ansible_example == 'foobar_from_set_fact_cacheable'