ansible/test/integration/targets/parsing/parsing.yml

- hosts: testhost
  gather_facts: no
  tasks:
    - name: test that a variable cannot inject raw arguments
      shell: echo hi {{ chdir }}
      vars:
        chdir: mom chdir=/tmp
      register: raw_injection

    - name: test that a variable cannot inject kvp arguments as a kvp
      file: path={{ test_file }} {{ test_input }}
      vars:
        test_file: "{{ output_dir }}/ansible_test_file"
        test_input: "owner=test"
      register: kvp_kvp_injection
      ignore_errors: yes

    - name: test that a variable cannot inject kvp arguments as a value
      file: state=absent path='{{ kvp_in_var }}'
      vars:
        kvp_in_var: "{{ output_dir }}' owner='test"
      register: kvp_value_injection

    - name: test that a missing filter fails
      debug:
        msg: "{{ output_dir | badfiltername }}"
      register: filter_missing
      ignore_errors: yes

    - assert:
        that:
          - raw_injection.stdout == 'hi mom chdir=/tmp'
          - kvp_kvp_injection is failed
          - kvp_value_injection.path.endswith("' owner='test")
          - filter_missing is failed