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# Copyright (C) 2003-2007, 2009, 2010 Nominum, Inc.
#
# Permission to use, copy, modify, and distribute this software and its
# documentation for any purpose with or without fee is hereby granted,
# provided that the above copyright notice and this permission notice
# appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
import cStringIO
import sys
import time
import unittest
import dns.name
import dns.message
import dns.name
import dns.rdataclass
import dns.rdatatype
import dns.resolver
resolv_conf = """
/t/t
# comment 1
; comment 2
domain foo
nameserver 10.0.0.1
nameserver 10.0.0.2
"""
message_text = """id 1234
opcode QUERY
rcode NOERROR
flags QR AA RD
;QUESTION
example. IN A
;ANSWER
example. 1 IN A 10.0.0.1
;AUTHORITY
;ADDITIONAL
"""
class ResolverTestCase(unittest.TestCase):
if sys.platform != 'win32':
def testRead(self):
f = cStringIO.StringIO(resolv_conf)
r = dns.resolver.Resolver(f)
self.failUnless(r.nameservers == ['10.0.0.1', '10.0.0.2'] and
r.domain == dns.name.from_text('foo'))
def testCacheExpiration(self):
message = dns.message.from_text(message_text)
name = dns.name.from_text('example.')
answer = dns.resolver.Answer(name, dns.rdatatype.A, dns.rdataclass.IN,
message)
cache = dns.resolver.Cache()
cache.put((name, dns.rdatatype.A, dns.rdataclass.IN), answer)
time.sleep(2)
self.failUnless(cache.get((name, dns.rdatatype.A, dns.rdataclass.IN))
is None)
def testCacheCleaning(self):
message = dns.message.from_text(message_text)
name = dns.name.from_text('example.')
answer = dns.resolver.Answer(name, dns.rdatatype.A, dns.rdataclass.IN,
message)
cache = dns.resolver.Cache(cleaning_interval=1.0)
cache.put((name, dns.rdatatype.A, dns.rdataclass.IN), answer)
time.sleep(2)
self.failUnless(cache.get((name, dns.rdatatype.A, dns.rdataclass.IN))
is None)
def testZoneForName1(self):
name = dns.name.from_text('www.dnspython.org.')
ezname = dns.name.from_text('dnspython.org.')
zname = dns.resolver.zone_for_name(name)
self.failUnless(zname == ezname)
def testZoneForName2(self):
name = dns.name.from_text('a.b.www.dnspython.org.')
ezname = dns.name.from_text('dnspython.org.')
zname = dns.resolver.zone_for_name(name)
self.failUnless(zname == ezname)
def testZoneForName3(self):
name = dns.name.from_text('dnspython.org.')
ezname = dns.name.from_text('dnspython.org.')
zname = dns.resolver.zone_for_name(name)
self.failUnless(zname == ezname)
def testZoneForName4(self):
def bad():
name = dns.name.from_text('dnspython.org', None)
zname = dns.resolver.zone_for_name(name)
self.failUnlessRaises(dns.resolver.NotAbsolute, bad)
if __name__ == '__main__':
unittest.main()
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