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tests: check transient hostname with and without static hostname 

We expect a static hostname to win over a transient one, so test both cases.
This commit is contained in:
Martin Pitt 2016-11-21 12:53:24 +01:00
parent e8c0de9127
commit 89748b0af1
1 changed files with 30 additions and 2 deletions
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32
test/networkd-test.py
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@ -37,6 +37,7 @@ import unittest
import tempfile
import subprocess
import shutil
import socket
networkd_active = subprocess.call(['systemctl', 'is-active', '--quiet',
'systemd-networkd']) == 0
@ -423,15 +424,42 @@ Domains= ~company ~lab''')
def test_transient_hostname(self):
'''networkd sets transient hostname from DHCP'''
orig_hostname = socket.gethostname()
self.addCleanup(socket.sethostname, orig_hostname)
# temporarily move /etc/hostname away; restart hostnamed to pick it up
if os.path.exists('/etc/hostname'):
subprocess.check_call(['mount', '--bind', '/dev/null', '/etc/hostname'])
self.addCleanup(subprocess.call, ['umount', '/etc/hostname'])
subprocess.check_call(['systemctl', 'stop', 'systemd-hostnamed.service'])
self.create_iface(dnsmasq_opts=['--dhcp-host=%s,192.168.5.210,testgreen' % self.iface_mac])
self.do_test(coldplug=None, extra_opts='IPv6AcceptRA=False', dhcp_mode='ipv4')
# should have received the fixed IP above
out = subprocess.check_output(['ip', '-4', 'a', 'show', 'dev', self.iface])
self.assertRegex(out, b'inet 192.168.5.210/24 .* scope global dynamic')
# should have set transient hostname
# should have set transient hostname in hostnamed
self.assertIn(b'testgreen', subprocess.check_output(['hostnamectl']))
# and also applied to the system
self.assertEqual(socket.gethostname(), 'testgreen')
def test_transient_hostname_with_static(self):
'''transient hostname is not applied if static hostname exists'''
orig_hostname = socket.gethostname()
self.addCleanup(socket.sethostname, orig_hostname)
if not os.path.exists('/etc/hostname'):
self.writeConfig('/etc/hostname', orig_hostname)
subprocess.check_call(['systemctl', 'stop', 'systemd-hostnamed.service'])
self.create_iface(dnsmasq_opts=['--dhcp-host=%s,192.168.5.210,testgreen' % self.iface_mac])
self.do_test(coldplug=None, extra_opts='IPv6AcceptRA=False', dhcp_mode='ipv4')
# should have received the fixed IP above
out = subprocess.check_output(['ip', '-4', 'a', 'show', 'dev', self.iface])
self.assertRegex(out, b'inet 192.168.5.210/24 .* scope global dynamic')
# static hostname wins over transient one, thus *not* applied
self.assertEqual(socket.gethostname(), orig_hostname)
class NetworkdClientTest(ClientTestBase, unittest.TestCase):