regression-tests.recursor-dnssec/test_TraceFail.py

   1 import dns
   2 import os
   3 import time
   4 import subprocess
   5 from recursortests import RecursorTest
   6
   7 class testTraceFail(RecursorTest):
   8     _confdir = 'TraceFail'
   9
  10     _config_template = """
  11 trace=fail
  12 forward-zones-recurse=.=127.0.0.1:9999
  13 """
  14
  15     @classmethod
  16     def setUpClass(cls):
  17
  18         # we don't need all the auth stuff
  19         cls.setUpSockets()
  20         cls.startResponders()
  21
  22         confdir = os.path.join('configs', cls._confdir)
  23         cls.createConfigDir(confdir)
  24
  25         cls.generateRecursorConfig(confdir)
  26         cls.startRecursor(confdir, cls._recursorPort)
  27
  28     @classmethod
  29     def tearDownClass(cls):
  30         cls.tearDownRecursor()
  31
  32     def testA(self):
  33         query = dns.message.make_query('example', 'A', want_dnssec=False)
  34         res = self.sendUDPQuery(query)
  35         self.assertRcodeEqual(res, dns.rcode.SERVFAIL)
  36
  37         grepCmd = ['grep', 'END OF FAIL TRACE', 'configs/' + self._confdir + '/recursor.log']
  38         ret = b''
  39         for i in range(10):
  40             time.sleep(1)
  41             try:
  42                 ret = subprocess.check_output(grepCmd, stderr=subprocess.STDOUT)
  43             except subprocess.CalledProcessError as e:
  44                 continue
  45             print(b'A' + ret)
  46             break
  47         print(ret)
  48         self.assertNotEqual(ret, b'')