How to log in molecule?

Question

I am using Molecule to test an Ansible role. I've written unit tests in python, and have been unable to print out variables or log anything to stdout. Here is my code

import os
import testinfra.utils.ansible_runner
import logging

LOG = logging.getLogger("toto")

testinfra_hosts = testinfra.utils.ansible_runner.AnsibleRunner(
    os.environ['MOLECULE_INVENTORY_FILE']).get_hosts('all')


def test_something(host):
    print 'Hello World!'
    LOG.warn('Hello World!')
    assert True

Answer 1

Enable the s flag for testinfra inside molecule.yml:

---
dependency:
  name: galaxy
driver:
  name: docker
lint:
  name: yamllint
platforms:
  - name: instance
    image: centos:7
provisioner:
  name: ansible
  lint:
    name: ansible-lint
scenario:
  name: default
verifier:
  name: testinfra
  lint:
    name: flake8
  options:
    s: true