host.Run() fails on Windows host using Ansible/Molecule

[cobbr]

I'm having trouble getting a simple testinfra script to execute on a Windows machine. I'm using testinfra as a part of a stack using ansible and molecule, which may or may not be related to the issue.

Here's what my basic test looks like:

import os

import testinfra.utils.ansible_runner

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

def test_ps(host):
    cmd = host.run('whoami')

This is the error output I'm receiving:

writing pytestdebug information to /<path>/molecule/default/pytestdebug.log
    ============================= test session starts ==============================
    platform darwin -- Python 2.7.15, pytest-4.2.0, py-1.7.0, pluggy-0.8.1 -- /<path>/bin/python2.7
    using: pytest-4.2.0 pylib-1.7.0
    setuptools registered plugins:
      testinfra-1.19.1.dev9+gef92ec3 at /<path>/lib/python2.7/site-packages/testinfra/plugin.py
    rootdir: /<path>/molecule/default, inifile:
    plugins: testinfra-1.19.1.dev9+gef92ec3
collected 1 item

    tests/test_default.py::test_ps[ansible://jhalpert] FAILED                [100%]

    =================================== FAILURES ===================================
    _________________________ test_ps[ansible://jhalpert] __________________________

    host = <testinfra.host.Host object at 0x106647950>

        def test_ps(host):
    >       cmd = host.run('whoami')

    tests/test_default.py:9:
    _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
    ../../../../../../../lib/python2.7/site-packages/testinfra/host.py:71: in run
        return self.backend.run(command, *args, **kwargs)
    _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

    self = <testinfra.backend.ansible.AnsibleBackend object at 0x1066477d0>
    command = 'whoami', args = (), kwargs = {}
    out = {'_ansible_no_log': False, '_ansible_parsed': False, 'changed': False, 'module_stderr': 'Exception calling "Create" wi...tegoryInfo          : InvalidOperation: (:) [], RuntimeException
        + FullyQualifiedErrorId : BadExpression
     ', ...}

        def run(self, command, *args, **kwargs):
            command = self.get_command(command, *args)
            out = self.run_ansible("shell", module_args=command)
            return self.result(
                out['rc'],
                command,
                stdout_bytes=None,
                stderr_bytes=None,
    >           stdout=out["stdout"], stderr=out["stderr"],
            )
    E       KeyError: u'stdout'

    ../../../../../../../lib/python2.7/site-packages/testinfra/backend/ansible.py:48: KeyError
    ------------------------------ Captured log call -------------------------------
    ansible.py                  61 INFO     RUN Ansible(u'shell', 'whoami', {}): {'_ansible_no_log': False,
     '_ansible_parsed': False,
     'changed': False,
     'module_stderr': u'Exception calling "Create" with "1" argument(s): "At line:4 char:21\r\n+ def _ansiballz_main():\r\n+                     ~\r\nAn expression was expected after \'(\'.\r\nAt line:12 char:27\r\n+     except (AttributeError, OSError):\r\n+                           ~\r\nMissing argument in parameter list.\r\nAt line:14 char:7\r\n+     if scriptdir is not None:\r\n+       ~\r\nMissing \'(\' after \'if\' in if statement.\r\nAt line:21 char:7\r\n+     if sys.version_info < (3,):\r\n+       ~\r\nMissing \'(\' after \'if\' in if statement.\r\nAt line:21 char:30\r\n+     if sys.version_info < (3,):\r\n+                              ~\r\nMissing expression after \',\'.\r\nAt line:21 char:25\r\n+     if sys.version_info < (3,):\r\n+                         ~\r\nThe \'<\' operator is reserved for future use.\r\nAt line:23 char:32\r\n+         MOD_DESC = (\'.py\', \'U\', imp.PY_SOURCE)\r\n+                                ~\r\nMissing expression after \',\'.\r\nAt line:23 char:33\r\n+         MOD_DESC = (\'.py\', \'U\', imp.PY_SOURCE)\r\n+                                 ~~~~~~~~~~~~~\r\nUnexpected token \'imp.PY_SOURCE\' in expression or statement.\r\nAt line:23 char:32\r\n+         MOD_DESC = (\'.py\', \'U\', imp.PY_SOURCE)\r\n+                                ~\r\nMissing closing \')\' in expression.\r\nAt line:23 char:46\r\n+         MOD_DESC = (\'.py\', \'U\', imp.PY_SOURCE)\r\n+                                              ~\r\nUnexpected token \')\' in expression or statement.\r\nNot all parse errors were reported.  Correct the reported errors and try again."\r\nAt line:6 char:1\r\n+ $exec_wrapper = [ScriptBlock]::Create($split_parts[0])\r\n+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r\n    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException\r\n    + FullyQualifiedErrorId : ParseException\r\n \r\nThe expression after \'&\' in a pipeline element produced an object that was not valid. It must result in a command \r\nname, a script block, or a CommandInfo object.\r\nAt line:7 char:2\r\n+ &$exec_wrapper\r\n+  ~~~~~~~~~~~~~\r\n    + CategoryInfo          : InvalidOperation: (:) [], RuntimeException\r\n    + FullyQualifiedErrorId : BadExpression\r\n ',
     'module_stdout': u'',
     'msg': u'MODULE FAILURE\nSee stdout/stderr for the exact error',
     'rc': 1}
    ========================== deprecated python version ===========================
    You are using Python 2.7.15, which will no longer be supported in pytest 5.0
    For more information, please read:
      https://docs.pytest.org/en/latest/py27-py34-deprecation.html
    =========================== 1 failed in 2.39 seconds ===========================
wrote pytestdebug information to /<path>/molecule/default/pytestdebug.log

I've tried with both testinfra 1.16.0 and the current git master branch (1.19.1.dev). Any help you can offer is appreciated!

[karanvirsngh]

I am not entirely sure that whether this is due to testinfra host.run() method or ansible not supporting all python modules directly over winrm.

But you can run something like below, if that helps -

def test_ps(host):
    x = host.ansible("raw", "hostname", check=False)["stdout_lines"][0]
    assert x == "EC2AMAZ-OQ6SGQQ"