ansible/test/integration/test_delegate_to.yml

- hosts: testhost3
  roles:
    - { role: prepare_tests }
  vars:
    - template_role: ./roles/test_template
    - templated_var: foo
  tasks:
    - name: Test no delegate_to
      setup:
      register: setup_results

    - assert:
        that:
          - '"127.0.0.3" in setup_results.ansible_facts.ansible_env["SSH_CONNECTION"]'

    - name: Test delegate_to with host in inventory
      setup:
      register: setup_results
      delegate_to: testhost4

    - assert:
        that:
          - '"127.0.0.4" in setup_results.ansible_facts.ansible_env["SSH_CONNECTION"]'

    - name: Test delegate_to with host not in inventory
      setup:
      register: setup_results
      delegate_to: 127.0.0.254

    - assert:
        that:
          - '"127.0.0.254" in setup_results.ansible_facts.ansible_env["SSH_CONNECTION"]'
#
# Smoketest some other modules do not error as a canary
#
    - name: Test file works with delegate_to and a host in inventory
      file: path={{ output_dir }}/foo.txt mode=0644 state=touch
      delegate_to: testhost4

    - name: Test file works with delegate_to and a host not in inventory
      file: path={{ output_dir }}/test_follow_link mode=0644 state=touch
      delegate_to: 127.0.0.254

    - name: Test template works with delegate_to and a host in inventory
      template: src={{ template_role }}/templates/foo.j2 dest={{ output_dir }}/foo.txt
      delegate_to: testhost4

    - name: Test template works with delegate_to and a host not in inventory
      template: src={{ template_role }}/templates/foo.j2 dest={{ output_dir }}/foo.txt
      delegate_to: 127.0.0.254