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from cloudinit.distros.parsers import resolv_conf
from cloudinit.distros import rhel_util
from ..helpers import TestCase
import re
import tempfile
BASE_RESOLVE = '''
; generated by /sbin/dhclient-script
search blah.yahoo.com yahoo.com
nameserver 10.15.44.14
nameserver 10.15.30.92
'''
BASE_RESOLVE = BASE_RESOLVE.strip()
class TestResolvHelper(TestCase):
def test_parse_same(self):
rp = resolv_conf.ResolvConf(BASE_RESOLVE)
rp_r = str(rp).strip()
self.assertEqual(BASE_RESOLVE, rp_r)
def test_write_works(self):
with tempfile.NamedTemporaryFile() as fh:
rhel_util.update_resolve_conf_file(fh.name, [], [])
def test_local_domain(self):
rp = resolv_conf.ResolvConf(BASE_RESOLVE)
self.assertEqual(None, rp.local_domain)
rp.local_domain = "bob"
self.assertEqual('bob', rp.local_domain)
self.assertIn('domain bob', str(rp))
def test_nameservers(self):
rp = resolv_conf.ResolvConf(BASE_RESOLVE)
self.assertIn('10.15.44.14', rp.nameservers)
self.assertIn('10.15.30.92', rp.nameservers)
rp.add_nameserver('10.2')
self.assertIn('10.2', rp.nameservers)
self.assertIn('nameserver 10.2', str(rp))
self.assertNotIn('10.3', rp.nameservers)
self.assertEqual(len(rp.nameservers), 3)
rp.add_nameserver('10.2')
self.assertRaises(ValueError, rp.add_nameserver, '10.3')
self.assertNotIn('10.3', rp.nameservers)
def test_search_domains(self):
rp = resolv_conf.ResolvConf(BASE_RESOLVE)
self.assertIn('yahoo.com', rp.search_domains)
self.assertIn('blah.yahoo.com', rp.search_domains)
rp.add_search_domain('bbb.y.com')
self.assertIn('bbb.y.com', rp.search_domains)
self.assertTrue(re.search(r'search(.*)bbb.y.com(.*)', str(rp)))
self.assertIn('bbb.y.com', rp.search_domains)
rp.add_search_domain('bbb.y.com')
self.assertEqual(len(rp.search_domains), 3)
rp.add_search_domain('bbb2.y.com')
self.assertEqual(len(rp.search_domains), 4)
rp.add_search_domain('bbb3.y.com')
self.assertEqual(len(rp.search_domains), 5)
rp.add_search_domain('bbb4.y.com')
self.assertEqual(len(rp.search_domains), 6)
self.assertRaises(ValueError, rp.add_search_domain, 'bbb5.y.com')
self.assertEqual(len(rp.search_domains), 6)
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