- hosts: all
  tasks:
    - name: Success dhall-diff
      include_role:
        name: render-diff

    - name: Ensure dhall-diff succeeded
      assert:
        that:
          - render_diff.stdout == ''

    - name: Introduce a difference
      copy:
        content: "44"
        dest: "{{ zuul.project.src_dir }}/test.yaml"

    - name: Commit the difference
      command: git commit -a -m "test update"
      args:
        chdir: "{{ zuul.project.src_dir }}"
        warn: false

    - name: Failed dhall-diff
      include_role:
        name: render-diff
      vars:
        diff_ignore_errors: yes

    - name: Ensure dhall-diff failed
      assert:
        that:
          - render_diff.stdout != ''