mitogen/tests/ansible/integration/context_service/lru_one_target.yml

# Verify a maximum number of contexts are possible on one machine.

- name: integration/context_service/lru_one_target.yml
  hosts: test-targets
  any_errors_fatal: true
  vars:
    max_interps: "{{lookup('env', 'MITOGEN_MAX_INTERPRETERS')}}"
    ubound: "{{max_interps|int + 1}}"

  tasks:

    - name: Reset all connections
      mitogen_shutdown_all:
      when: is_mitogen

    - name: Spin up a bunch of interpreters
      custom_python_detect_environment:
      become: true
      vars:
        ansible_become_user: "mitogen__user{{item}}"
      with_sequence: start=1 end={{ubound}}
      register: first_run

    - name: Reuse them
      custom_python_detect_environment:
      become: true
      vars:
        ansible_become_user: "mitogen__user{{item}}"
      with_sequence: start=1 end={{ubound}}
      register: second_run

    - assert:
        that:
        - first_run.results[item|int].pid == second_run.results[item|int].pid
      with_items: start=0 end={{max_interps}}
      when: is_mitogen

    - assert:
        that:
        - first_run.results[-1].pid != second_run.results[-1].pid
      when: is_mitogen