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#
# Command-line arguments handling tests for generator
#
# Copyright (C) 2018 Canonical, Ltd.
# Author: Mathieu Trudel-Lapierre <mathieu.trudel.lapierre@canonical.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 3.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import os
import sys
import subprocess
from .base import TestBase, exe_generate
class TestConfigArgs(TestBase):
'''Config file argument handling'''
def test_no_files(self):
subprocess.check_call([exe_generate, '--root-dir', self.workdir.name])
self.assertEqual(os.listdir(self.workdir.name), [])
self.assert_nm_udev(None)
def test_no_configs(self):
self.generate('network:\n version: 2')
# should not write any files
self.assertEqual(os.listdir(self.workdir.name), ['etc'])
self.assert_nm_udev(None)
def test_empty_config(self):
self.generate('')
# should not write any files
self.assertEqual(os.listdir(self.workdir.name), ['etc'])
self.assert_nm_udev(None)
def test_file_args(self):
conf = os.path.join(self.workdir.name, 'config')
with open(conf, 'w') as f:
f.write('network: {}')
# when specifying custom files, it should ignore the global config
self.generate('''network:
version: 2
ethernets:
eth0:
dhcp4: true''', extra_args=[conf])
self.assertEqual(set(os.listdir(self.workdir.name)), {'config', 'etc'})
def test_file_args_notfound(self):
err = self.generate('''network:
version: 2
ethernets:
eth0:
dhcp4: true''', expect_fail=True, extra_args=['/non/existing/config'])
self.assertEqual(err, 'Cannot open /non/existing/config: No such file or directory\n')
self.assertEqual(os.listdir(self.workdir.name), ['etc'])
def test_help(self):
conf = os.path.join(self.workdir.name, 'etc', 'netplan', 'a.yaml')
os.makedirs(os.path.dirname(conf))
with open(conf, 'w') as f:
f.write('''network:
version: 2
ethernets:
eth0:
dhcp4: true''')
p = subprocess.Popen([exe_generate, '--root-dir', self.workdir.name, '--help'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
universal_newlines=True)
(out, err) = p.communicate()
self.assertEqual(err, '')
self.assertEqual(p.returncode, 0)
self.assertIn('Usage:', out)
self.assertEqual(os.listdir(self.workdir.name), ['etc'])
def test_unknown_cli_args(self):
p = subprocess.Popen([exe_generate, '--foo'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE,
universal_newlines=True)
(out, err) = p.communicate()
self.assertIn('nknown option --foo', err)
self.assertNotEqual(p.returncode, 0)
def test_output_mkdir_error(self):
conf = os.path.join(self.workdir.name, 'config')
with open(conf, 'w') as f:
f.write('''network:
version: 2
ethernets:
eth0:
dhcp4: true''')
err = self.generate('', extra_args=['--root-dir', '/proc/foo', conf], expect_fail=True)
self.assertIn('cannot create directory /proc/foo/run/systemd/network', err)
def test_systemd_generator(self):
conf = os.path.join(self.confdir, 'a.yaml')
os.makedirs(os.path.dirname(conf))
with open(conf, 'w') as f:
f.write('''network:
version: 2
ethernets:
eth0:
dhcp4: true''')
outdir = os.path.join(self.workdir.name, 'out')
os.mkdir(outdir)
generator = os.path.join(self.workdir.name, 'systemd', 'system-generators', 'netplan')
os.makedirs(os.path.dirname(generator))
os.symlink(exe_generate, generator)
subprocess.check_call([generator, '--root-dir', self.workdir.name, outdir, outdir, outdir])
self.assertEqual(set(os.listdir(outdir)),
{'netplan.stamp', 'multi-user.target.wants', 'network-online.target.wants'})
n = os.path.join(self.workdir.name, 'run', 'systemd', 'network', '10-netplan-eth0.network')
self.assertTrue(os.path.exists(n))
os.unlink(n)
# should auto-enable networkd and -wait-online
self.assertTrue(os.path.islink(os.path.join(
outdir, 'multi-user.target.wants', 'systemd-networkd.service')))
self.assertTrue(os.path.islink(os.path.join(
outdir, 'network-online.target.wants', 'systemd-networkd-wait-online.service')))
# should be a no-op the second time while the stamp exists
out = subprocess.check_output([generator, '--root-dir', self.workdir.name, outdir, outdir, outdir],
stderr=subprocess.STDOUT)
self.assertFalse(os.path.exists(n))
self.assertIn(b'netplan generate already ran', out)
# after removing the stamp it generates again, and not trip over the
# existing enablement symlink
os.unlink(os.path.join(outdir, 'netplan.stamp'))
subprocess.check_output([generator, '--root-dir', self.workdir.name, outdir, outdir, outdir])
self.assertTrue(os.path.exists(n))
def test_systemd_generator_noconf(self):
outdir = os.path.join(self.workdir.name, 'out')
os.mkdir(outdir)
generator = os.path.join(self.workdir.name, 'systemd', 'system-generators', 'netplan')
os.makedirs(os.path.dirname(generator))
os.symlink(exe_generate, generator)
subprocess.check_call([generator, '--root-dir', self.workdir.name, outdir, outdir, outdir])
# no enablement symlink here
self.assertEqual(os.listdir(outdir), ['netplan.stamp'])
def test_systemd_generator_badcall(self):
outdir = os.path.join(self.workdir.name, 'out')
os.mkdir(outdir)
generator = os.path.join(self.workdir.name, 'systemd', 'system-generators', 'netplan')
os.makedirs(os.path.dirname(generator))
os.symlink(exe_generate, generator)
try:
subprocess.check_output([generator, '--root-dir', self.workdir.name],
stderr=subprocess.STDOUT)
self.fail("direct systemd generator call is expected to fail, but succeeded.") # pragma: nocover
except subprocess.CalledProcessError as e:
self.assertEqual(e.returncode, 1)
self.assertIn(b'can not be called directly', e.output)
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