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try:
import unittest2 as unittest
except ImportError:
import unittest
import os
from mock import (patch, Mock)
from StringIO import StringIO
import ping
import requests
from leap.base import checks
from leap.base import exceptions
from leap.testing.basetest import BaseLeapTest
_uid = os.getuid()
class LeapNetworkCheckTest(BaseLeapTest):
__name__ = "leap_network_check_tests"
def setUp(self):
pass
def tearDown(self):
pass
def test_checker_should_implement_check_methods(self):
checker = checks.LeapNetworkChecker()
self.assertTrue(hasattr(checker, "check_internet_connection"),
"missing meth")
self.assertTrue(hasattr(checker, "check_tunnel_default_interface"),
"missing meth")
self.assertTrue(hasattr(checker, "is_internet_up"),
"missing meth")
self.assertTrue(hasattr(checker, "ping_gateway"),
"missing meth")
self.assertTrue(hasattr(checker, "parse_log_and_react"),
"missing meth")
def test_checker_should_actually_call_all_tests(self):
checker = checks.LeapNetworkChecker()
mc = Mock()
checker.run_all(checker=mc)
self.assertTrue(mc.check_internet_connection.called, "not called")
self.assertTrue(mc.check_tunnel_default_interface.called, "not called")
self.assertTrue(mc.is_internet_up.called, "not called")
self.assertTrue(mc.parse_log_and_react.called, "not called")
# ping gateway only called if we pass provider_gw
checker = checks.LeapNetworkChecker(provider_gw="0.0.0.0")
mc = Mock()
checker.run_all(checker=mc)
self.assertTrue(mc.check_internet_connection.called, "not called")
self.assertTrue(mc.check_tunnel_default_interface.called, "not called")
self.assertTrue(mc.ping_gateway.called, "not called")
self.assertTrue(mc.is_internet_up.called, "not called")
self.assertTrue(mc.parse_log_and_react.called, "not called")
def test_get_default_interface_no_interface(self):
checker = checks.LeapNetworkChecker()
with patch('leap.base.checks.open', create=True) as mock_open:
with self.assertRaises(exceptions.NoDefaultInterfaceFoundError):
mock_open.return_value = StringIO(
"Iface\tDestination Gateway\t"
"Flags\tRefCntd\tUse\tMetric\t"
"Mask\tMTU\tWindow\tIRTT")
checker.get_default_interface_gateway()
def test_check_tunnel_default_interface(self):
checker = checks.LeapNetworkChecker()
with patch('leap.base.checks.open', create=True) as mock_open:
with self.assertRaises(exceptions.TunnelNotDefaultRouteError):
mock_open.return_value = StringIO(
"Iface\tDestination Gateway\t"
"Flags\tRefCntd\tUse\tMetric\t"
"Mask\tMTU\tWindow\tIRTT")
checker.check_tunnel_default_interface()
with patch('leap.base.checks.open', create=True) as mock_open:
with self.assertRaises(exceptions.TunnelNotDefaultRouteError):
mock_open.return_value = StringIO(
"Iface\tDestination Gateway\t"
"Flags\tRefCntd\tUse\tMetric\t"
"Mask\tMTU\tWindow\tIRTT\n"
"wlan0\t00000000\t0102A8C0\t"
"0003\t0\t0\t0\t00000000\t0\t0\t0")
checker.check_tunnel_default_interface()
with patch('leap.base.checks.open', create=True) as mock_open:
mock_open.return_value = StringIO(
"Iface\tDestination Gateway\t"
"Flags\tRefCntd\tUse\tMetric\t"
"Mask\tMTU\tWindow\tIRTT\n"
"tun0\t00000000\t01002A0A\t0003\t0\t0\t0\t00000080\t0\t0\t0")
checker.check_tunnel_default_interface()
def test_ping_gateway_fail(self):
checker = checks.LeapNetworkChecker()
with patch.object(ping, "quiet_ping") as mocked_ping:
with self.assertRaises(exceptions.NoConnectionToGateway):
mocked_ping.return_value = [11, "", ""]
checker.ping_gateway("4.2.2.2")
def test_check_internet_connection_failures(self):
checker = checks.LeapNetworkChecker()
with patch.object(requests, "get") as mocked_get:
mocked_get.side_effect = requests.HTTPError
with self.assertRaises(exceptions.NoInternetConnection):
checker.check_internet_connection()
with patch.object(requests, "get") as mocked_get:
mocked_get.side_effect = requests.RequestException
with self.assertRaises(exceptions.NoInternetConnection):
checker.check_internet_connection()
#TODO: Mock possible errors that can be raised by is_internet_up
with patch.object(requests, "get") as mocked_get:
mocked_get.side_effect = requests.ConnectionError
with self.assertRaises(exceptions.NoInternetConnection):
checker.check_internet_connection()
with patch.object(requests, "get") as mocked_get:
mocked_get.side_effect = requests.ConnectionError(
"[Errno 113] No route to host")
with self.assertRaises(exceptions.NoInternetConnection):
with patch.object(checker, "ping_gateway") as mock_ping:
mock_ping.return_value = True
checker.check_internet_connection()
with patch.object(requests, "get") as mocked_get:
mocked_get.side_effect = requests.ConnectionError(
"[Errno 113] No route to host")
with self.assertRaises(exceptions.NoInternetConnection):
with patch.object(checker, "ping_gateway") as mock_ping:
mock_ping.side_effect = exceptions.NoConnectionToGateway
checker.check_internet_connection()
def test_parse_log_and_react(self):
checker = checks.LeapNetworkChecker()
to_call = Mock()
log = [("leap.openvpn - INFO - Mon Nov 19 13:36:24 2012 "
"read UDPv4 [ECONNREFUSED]: Connection refused (code=111)"]
err_matrix = [(checks.EVENT_CONNECT_REFUSED, (to_call, ))]
checker.parse_log_and_react(log, err_matrix)
self.assertTrue(to_call.called)
log = [("2012-11-19 13:36:26,177 - leap.openvpn - INFO - "
"Mon Nov 19 13:36:24 2012 ERROR: Linux route delete command "
"failed: external program exited"),
("2012-11-19 13:36:26,178 - leap.openvpn - INFO - "
"Mon Nov 19 13:36:24 2012 ERROR: Linux route delete command "
"failed: external program exited"),
("2012-11-19 13:36:26,180 - leap.openvpn - INFO - "
"Mon Nov 19 13:36:24 2012 ERROR: Linux route delete command "
"failed: external program exited"),
("2012-11-19 13:36:26,181 - leap.openvpn - INFO - "
"Mon Nov 19 13:36:24 2012 /sbin/ifconfig tun0 0.0.0.0"),
("2012-11-19 13:36:26,182 - leap.openvpn - INFO - "
"Mon Nov 19 13:36:24 2012 Linux ip addr del failed: external "
"program exited with error stat"),
("2012-11-19 13:36:26,183 - leap.openvpn - INFO - "
"Mon Nov 19 13:36:26 2012 SIGTERM[hard,] received, process"
"exiting"), ]
to_call.reset_mock()
checker.parse_log_and_react(log, err_matrix)
self.assertFalse(to_call.called)
to_call.reset_mock()
checker.parse_log_and_react([], err_matrix)
self.assertFalse(to_call.called)
@unittest.skipUnless(_uid == 0, "root only")
def test_ping_gateway(self):
checker = checks.LeapNetworkChecker()
checker.ping_gateway("4.2.2.2")
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