diff options
Diffstat (limited to 'tests/unittests')
| -rw-r--r-- | tests/unittests/test_handler/test_handler_resolv_conf.py | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/tests/unittests/test_handler/test_handler_resolv_conf.py b/tests/unittests/test_handler/test_handler_resolv_conf.py new file mode 100644 index 00000000..96139001 --- /dev/null +++ b/tests/unittests/test_handler/test_handler_resolv_conf.py @@ -0,0 +1,105 @@ +# This file is part of cloud-init. See LICENSE file for license information. + +from cloudinit.config import cc_resolv_conf + +from cloudinit import cloud +from cloudinit import distros +from cloudinit import helpers +from cloudinit import util +from copy import deepcopy + +from cloudinit.tests import helpers as t_help + +import logging +import os +import shutil +import tempfile +from unittest import mock + +LOG = logging.getLogger(__name__) + + +class TestResolvConf(t_help.FilesystemMockingTestCase): + with_logs = True + cfg = {'manage_resolv_conf': True, 'resolv_conf': {}} + + def setUp(self): + super(TestResolvConf, self).setUp() + self.tmp = tempfile.mkdtemp() + util.ensure_dir(os.path.join(self.tmp, 'data')) + self.addCleanup(shutil.rmtree, self.tmp) + + def _fetch_distro(self, kind, conf=None): + cls = distros.fetch(kind) + paths = helpers.Paths({'cloud_dir': self.tmp}) + conf = {} if conf is None else conf + return cls(kind, conf, paths) + + def call_resolv_conf_handler(self, distro_name, conf, cc=None): + if not cc: + ds = None + distro = self._fetch_distro(distro_name, conf) + paths = helpers.Paths({'cloud_dir': self.tmp}) + cc = cloud.Cloud(ds, paths, {}, distro, None) + cc_resolv_conf.handle('cc_resolv_conf', conf, cc, LOG, []) + + @mock.patch("cloudinit.config.cc_resolv_conf.templater.render_to_file") + def test_resolv_conf_systemd_resolved(self, m_render_to_file): + self.call_resolv_conf_handler('photon', self.cfg) + + assert [ + mock.call(mock.ANY, '/etc/systemd/resolved.conf', mock.ANY) + ] == m_render_to_file.call_args_list + + @mock.patch("cloudinit.config.cc_resolv_conf.templater.render_to_file") + def test_resolv_conf_no_param(self, m_render_to_file): + tmp = deepcopy(self.cfg) + self.logs.truncate(0) + tmp.pop('resolv_conf') + self.call_resolv_conf_handler('photon', tmp) + + self.assertIn('manage_resolv_conf True but no parameters provided', + self.logs.getvalue()) + assert [ + mock.call(mock.ANY, '/etc/systemd/resolved.conf', mock.ANY) + ] not in m_render_to_file.call_args_list + + @mock.patch("cloudinit.config.cc_resolv_conf.templater.render_to_file") + def test_resolv_conf_manage_resolv_conf_false(self, m_render_to_file): + tmp = deepcopy(self.cfg) + self.logs.truncate(0) + tmp['manage_resolv_conf'] = False + self.call_resolv_conf_handler('photon', tmp) + self.assertIn("'manage_resolv_conf' present but set to False", + self.logs.getvalue()) + assert [ + mock.call(mock.ANY, '/etc/systemd/resolved.conf', mock.ANY) + ] not in m_render_to_file.call_args_list + + @mock.patch("cloudinit.config.cc_resolv_conf.templater.render_to_file") + def test_resolv_conf_etc_resolv_conf(self, m_render_to_file): + self.call_resolv_conf_handler('rhel', self.cfg) + + assert [ + mock.call(mock.ANY, '/etc/resolv.conf', mock.ANY) + ] == m_render_to_file.call_args_list + + @mock.patch("cloudinit.config.cc_resolv_conf.templater.render_to_file") + def test_resolv_conf_invalid_resolve_conf_fn(self, m_render_to_file): + ds = None + distro = self._fetch_distro('rhel', self.cfg) + paths = helpers.Paths({'cloud_dir': self.tmp}) + cc = cloud.Cloud(ds, paths, {}, distro, None) + cc.distro.resolve_conf_fn = 'bla' + + self.logs.truncate(0) + self.call_resolv_conf_handler('rhel', self.cfg, cc) + + self.assertIn('No template found, not rendering resolve configs', + self.logs.getvalue()) + + assert [ + mock.call(mock.ANY, '/etc/resolv.conf', mock.ANY) + ] not in m_render_to_file.call_args_list + +# vi: ts=4 expandtab |