ansible/test/integration/targets/undefined/tasks/main.yml

- when: lookup('pipe', ansible_playbook_python ~ ' -c "import jinja2; print(jinja2.__version__)"') is version('2.7', '>=')
  block:
    - set_fact:
        names: '{{ things|map(attribute="name") }}'
      vars:
        things:
          - name: one
          - name: two
          - notname: three
          - name: four

    - assert:
        that:
          - '"%r"|format(undef) == "AnsibleUndefined"'
          # The existence of AnsibleUndefined in a templating result
          # prevents safe_eval from turning the value into a python object
          - names is string
          - '", AnsibleUndefined," in names'
Remove incidental tower integration tests (#72461) * Add explicit test for dict repr in argspec * Add explicit test for undefined repr * ci_complete ci_coverage * Skip old jinja2 * ci_complete ci_coverage * Remove incidental_tower_receive * ci_complete ci_coverage * Remove incidental_tower_credential_type * ci_complete ci_coverage * Remove ignore entries * ci_complete ci_coverage 4 years ago			`- when: lookup('pipe', ansible_playbook_python ~ ' -c "import jinja2; print(jinja2.__version__)"') is version('2.7', '>=')`
			`block:`
			`- set_fact:`
			`names: '{{ things\|map(attribute="name") }}'`
			`vars:`
			`things:`
			`- name: one`
			`- name: two`
			`- notname: three`
			`- name: four`

			`- assert:`
			`that:`
			`- '"%r"\|format(undef) == "AnsibleUndefined"'`
			`# The existence of AnsibleUndefined in a templating result`
			`# prevents safe_eval from turning the value into a python object`
			`- names is string`
			`- '", AnsibleUndefined," in names'`