225 lines
8.5 KiB
Python
225 lines
8.5 KiB
Python
# Author: Federico Ceratto <federico.ceratto@hpe.com>
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import dns
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import dns.rdataclass
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import dns.rdatatype
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import mock
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import designate.backend.agent as agent
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import designate.backend.private_codes as pcodes
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from designate import exceptions
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from designate import objects
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from designate import tests
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from designate.mdns import rpcapi as mdns_api
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from designate.tests.unit import RoObject
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class AgentBackendTestCase(tests.TestCase):
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def setUp(self):
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super(AgentBackendTestCase, self).setUp()
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self.CONF.set_override('poll_timeout', 1, 'service:pool_manager')
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self.CONF.set_override('poll_retry_interval', 4,
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'service:pool_manager')
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self.CONF.set_override('poll_max_retries', 5, 'service:pool_manager')
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self.CONF.set_override('poll_delay', 6, 'service:pool_manager')
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self.context = self.get_context()
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self.zone = objects.Zone(
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id='e2bed4dc-9d01-11e4-89d3-123b93f75cba',
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name='example.com.',
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email='example@example.com',
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)
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self.target = {
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'id': '4588652b-50e7-46b9-b688-a9bad40a873e',
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'type': 'agent',
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'masters': [],
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'options': [
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{'key': 'host', 'value': 2},
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{'key': 'port', 'value': 3},
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],
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}
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self.backend = agent.AgentPoolBackend(
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objects.PoolTarget.from_dict(self.target)
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)
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@mock.patch.object(mdns_api.MdnsAPI, 'get_instance')
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def test_mdns_api(self, mock_get_instance):
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self.assertIsInstance(self.backend.mdns_api, mock.Mock)
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@mock.patch.object(mdns_api.MdnsAPI, 'get_instance')
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def test_create_zone(self, mock_get_instance):
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self.backend._make_and_send_dns_message = mock.Mock(
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return_value=(1, 2))
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out = self.backend.create_zone(self.context, self.zone)
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self.backend._make_and_send_dns_message.assert_called_with(
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self.zone.name, 1, 14, pcodes.CREATE, pcodes.SUCCESS, 2, 3)
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self.assertIsNone(out)
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@mock.patch.object(mdns_api.MdnsAPI, 'get_instance')
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def test_create_zone_exception(self, mock_get_instance):
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self.backend._make_and_send_dns_message = mock.Mock(
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return_value=(None, 2))
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self.assertRaisesRegex(
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exceptions.Backend, 'create_zone.* failed',
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self.backend.create_zone, self.context, self.zone,
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)
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self.backend._make_and_send_dns_message.assert_called_with(
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self.zone.name, 1, 14, pcodes.CREATE, pcodes.SUCCESS, 2, 3)
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@mock.patch.object(mdns_api.MdnsAPI, 'get_instance')
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def test_update_zone(self, mock_get_instance):
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self.backend.mdns_api.notify_zone_changed = mock.Mock()
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out = self.backend.update_zone(self.context, self.zone)
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self.backend.mdns_api.notify_zone_changed.assert_called_with(
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self.context, self.zone, 2, 3, 1, 4, 5, 6)
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self.assertIsNone(out)
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@mock.patch.object(mdns_api.MdnsAPI, 'get_instance')
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def test_delete_zone(self, mock_get_instance):
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self.backend._make_and_send_dns_message = mock.Mock(
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return_value=(1, 2))
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out = self.backend.delete_zone(self.context, self.zone)
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self.backend._make_and_send_dns_message.assert_called_with(
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self.zone.name, 1, 14, pcodes.DELETE, pcodes.SUCCESS, 2, 3)
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self.assertIsNone(out)
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@mock.patch.object(mdns_api.MdnsAPI, 'get_instance')
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def test_delete_zone_exception(self, mock_get_instance):
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self.backend._make_and_send_dns_message = mock.Mock(
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return_value=(None, 2))
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self.assertRaisesRegex(
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exceptions.Backend, 'failed delete_zone',
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self.backend.delete_zone, self.context, self.zone,
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)
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self.backend._make_and_send_dns_message.assert_called_with(
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self.zone.name, 1, 14, pcodes.DELETE, pcodes.SUCCESS, 2, 3)
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def test_make_and_send_dns_message_timeout(self):
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self.backend._make_dns_message = mock.Mock(return_value='')
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self.backend._send_dns_message = mock.Mock(
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return_value=dns.exception.Timeout())
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out = self.backend._make_and_send_dns_message('h', 123, 1, 2, 3, 4, 5)
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self.assertEqual((None, 0), out)
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def test_make_and_send_dns_message_bad_response(self):
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self.backend._make_dns_message = mock.Mock(return_value='')
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self.backend._send_dns_message = mock.Mock(
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return_value=agent.dns_query.BadResponse())
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out = self.backend._make_and_send_dns_message('h', 123, 1, 2, 3, 4, 5)
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self.assertEqual((None, 0), out)
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def test_make_and_send_dns_message_missing_AA_flags(self):
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self.backend._make_dns_message = mock.Mock(return_value='')
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response = RoObject(
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rcode=mock.Mock(return_value=dns.rcode.NOERROR),
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# rcode is NOERROR but (flags & dns.flags.AA) gives 0
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flags=0,
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)
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self.backend._send_dns_message = mock.Mock(return_value=response)
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out = self.backend._make_and_send_dns_message('h', 123, 1, 2, 3, 4, 5)
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self.assertEqual((None, 0), out)
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def test_make_and_send_dns_message_error_flags(self):
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self.backend._make_dns_message = mock.Mock(return_value='')
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response = RoObject(
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rcode=mock.Mock(return_value=dns.rcode.NOERROR),
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# rcode is NOERROR but flags are not NOERROR
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flags=123,
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ednsflags=321
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)
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self.backend._send_dns_message = mock.Mock(return_value=response)
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out = self.backend._make_and_send_dns_message('h', 123, 1, 2, 3, 4, 5)
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self.assertEqual((None, 0), out)
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def test_make_and_send_dns_message(self):
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self.backend._make_dns_message = mock.Mock(return_value='')
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response = RoObject(
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rcode=mock.Mock(return_value=dns.rcode.NOERROR),
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flags=agent.dns.flags.AA,
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ednsflags=321
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)
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self.backend._send_dns_message = mock.Mock(return_value=response)
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out = self.backend._make_and_send_dns_message('h', 123, 1, 2, 3, 4, 5)
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self.assertEqual((response, 0), out)
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@mock.patch.object(agent.dns_query, 'tcp')
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@mock.patch.object(agent.dns_query, 'udp')
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def test_send_dns_message(self, mock_udp, mock_tcp):
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mock_udp.return_value = 'mock udp resp'
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out = self.backend._send_dns_message('msg', 'host', 123, 1)
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self.assertFalse(agent.dns_query.tcp.called)
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agent.dns_query.udp.assert_called_with('msg', 'host', port=123,
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timeout=1)
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self.assertEqual('mock udp resp', out)
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@mock.patch.object(agent.dns_query, 'tcp')
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@mock.patch.object(agent.dns_query, 'udp')
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def test_send_dns_message_timeout(self, mock_udp, mock_tcp):
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mock_udp.side_effect = dns.exception.Timeout
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out = self.backend._send_dns_message('msg', 'host', 123, 1)
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agent.dns_query.udp.assert_called_with('msg', 'host', port=123,
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timeout=1)
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self.assertIsInstance(out, dns.exception.Timeout)
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@mock.patch.object(agent.dns_query, 'tcp')
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@mock.patch.object(agent.dns_query, 'udp')
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def test_send_dns_message_bad_response(self, mock_udp, mock_tcp):
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mock_udp.side_effect = agent.dns_query.BadResponse
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out = self.backend._send_dns_message('msg', 'host', 123, 1)
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agent.dns_query.udp.assert_called_with('msg', 'host', port=123,
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timeout=1)
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self.assertIsInstance(out, agent.dns_query.BadResponse)
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@mock.patch.object(agent.dns_query, 'tcp')
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@mock.patch.object(agent.dns_query, 'udp')
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def test_send_dns_message_tcp(self, mock_udp, mock_tcp):
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self.CONF.set_override('all_tcp', True, 'service:mdns')
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mock_tcp.return_value = 'mock tcp resp'
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out = self.backend._send_dns_message('msg', 'host', 123, 1)
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self.assertFalse(agent.dns_query.udp.called)
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agent.dns_query.tcp.assert_called_with('msg', 'host', port=123,
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timeout=1)
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self.assertEqual('mock tcp resp', out)
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