- hosts: testhost
  gather_facts: false
  tasks:
    - name: ensure filters work as shipped from core
      assert:
         that:
             - a|flatten == [1, 2, 3, 4, 5]
             - a|ternary('yes', 'no') == 'yes'
      vars:
        a:
         - 1
         - 2
         - [3, 4, 5]