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community.general/tests/unit/plugins/connection/test_lxc.py
Corubba 1bf5a44a77
Fix lxc plugin options (#7369)
* Fixture for liblxc

Add a fixture to allow testing the lxc connection plugin both with and
without liblxc being present.

Also change the test from unittest to pytest.

* Update liblxc error message

The error is not specific to python2, so remove the version. Also add
a test for it.

* Migrate to options

Because the lxc plugin was only using PlayContext properties, using host
vars like `ansible_lxc_host` didn't work. This is fixed by instead using
the `get_option` method inherited from `AnsiblePlugin`.
The options are not yet available in the `__init__` function, so the
determination of the container name is moved to the `_connect` method,
which is the first time it is actually needed.
The default for the `remote_addr` option is removed, because the string
`inventory_hostname` is not very useful. At all. This seams to have been
spread with copy&paste and a bit of cargo culting. The variable priority
already takes care of setting the value.

* Add changelog fragment

* Fix for Py2.7

`TypeError: super() takes at least 1 argument (0 given)`

* Add plugin type to changelog fragment.

* Restore untemplated default

This partially reverts commit 429d8c8cfb.

---------

Co-authored-by: Felix Fontein <felix@fontein.de>
2023-10-09 09:11:11 +02:00

86 lines
2.9 KiB
Python

# Copyright (c) 2020 Red Hat Inc.
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
# Make coding more python3-ish
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
import pytest
import sys
from io import StringIO
from ansible.errors import AnsibleError
from ansible.playbook.play_context import PlayContext
from ansible.plugins.loader import connection_loader
from ansible_collections.community.general.tests.unit.compat import mock
@pytest.fixture(autouse=True)
def lxc(request):
"""Fixture to import/load the lxc plugin module.
The fixture parameter is used to determine the presence of liblxc.
When true (default), a mocked liblxc module is injected. If False,
no liblxc will be present.
"""
liblxc_present = getattr(request, 'param', True)
class ContainerMock(mock.MagicMock):
def __init__(self, name):
super(ContainerMock, self).__init__()
self.name = name
self.state = 'STARTED'
liblxc_module_mock = mock.MagicMock()
liblxc_module_mock.Container = ContainerMock
with mock.patch.dict('sys.modules'):
if liblxc_present:
sys.modules['lxc'] = liblxc_module_mock
elif 'lxc' in sys.modules:
del sys.modules['lxc']
from ansible_collections.community.general.plugins.connection import lxc as lxc_plugin_module
assert lxc_plugin_module.HAS_LIBLXC == liblxc_present
assert bool(getattr(lxc_plugin_module, '_lxc', None)) == liblxc_present
yield lxc_plugin_module
class TestLXCConnectionClass():
@pytest.mark.parametrize('lxc', [True, False], indirect=True)
def test_lxc_connection_module(self, lxc):
"""Test that a connection can be created with the plugin."""
play_context = PlayContext()
in_stream = StringIO()
conn = connection_loader.get('lxc', play_context, in_stream)
assert conn
assert isinstance(conn, lxc.Connection)
@pytest.mark.parametrize('lxc', [False], indirect=True)
def test_lxc_connection_liblxc_error(self, lxc):
"""Test that on connect an error is thrown if liblxc is not present."""
play_context = PlayContext()
in_stream = StringIO()
conn = connection_loader.get('lxc', play_context, in_stream)
with pytest.raises(AnsibleError, match='lxc python bindings are not installed'):
conn._connect()
def test_remote_addr_option(self):
"""Test that the remote_addr option is used"""
play_context = PlayContext()
in_stream = StringIO()
conn = connection_loader.get('lxc', play_context, in_stream)
container_name = 'my-container'
conn.set_option('remote_addr', container_name)
assert conn.get_option('remote_addr') == container_name
conn._connect()
assert conn.container_name == container_name