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"""Test kytos.core.switch module.""" |
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import json |
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from datetime import datetime, timezone |
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4
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from socket import error as SocketError |
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from unittest.mock import MagicMock, Mock, patch |
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import pytest |
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from kytos.core import Controller |
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from kytos.core.common import EntityStatus |
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from kytos.core.config import KytosConfig |
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from kytos.core.constants import FLOOD_TIMEOUT |
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from kytos.core.interface import Interface |
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from kytos.core.switch import Switch |
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def get_date(): |
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"""Return date with FLOOD_TIMEOUT+1 microseconds.""" |
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return datetime(2000, 1, 1, 0, 0, 0, FLOOD_TIMEOUT+1) |
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# pylint: disable=protected-access, too-many-public-methods |
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class TestSwitch: |
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"""Switch tests.""" |
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def setup_method(self): |
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"""Instantiate a controller.""" |
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self.options = KytosConfig().options['daemon'] |
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30
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self.controller = Controller(self.options) |
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31
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self.controller.log = Mock() |
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32
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self.controller._buffers = MagicMock() |
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self.switch = self.create_switch() |
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35
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@staticmethod |
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def create_switch(): |
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"""Create a new switch.""" |
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38
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connection = MagicMock() |
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connection.address = 'addr' |
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40
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connection.port = 'port' |
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41
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connection.protocol.version = 0x04 |
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switch = Switch('00:00:00:00:00:00:00:01', connection) |
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switch._enabled = True |
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switch.update_lastseen() |
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return switch |
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def test_repr(self): |
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"""Test repr() output.""" |
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expected_repr = "Switch('00:00:00:00:00:00:00:01')" |
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assert repr(self.switch) == expected_repr |
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51
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52
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def test_id(self): |
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"""Test id property.""" |
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assert self.switch.id == '00:00:00:00:00:00:00:01' |
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55
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56
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def test_ofp_version(self): |
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"""Test ofp_version property.""" |
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assert self.switch.ofp_version == '0x04' |
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def test_ofp_version__none(self): |
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"""Test ofp_version property when connection is none.""" |
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self.switch.connection = None |
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assert self.switch.ofp_version is None |
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64
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65
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def test_update_description(self): |
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"""Test update_description method.""" |
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desc = MagicMock() |
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desc.mfr_desc.value = 'mfr_desc' |
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desc.hw_desc.value = 'hw_desc' |
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desc.sw_desc.value = 'sw_desc' |
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desc.serial_num.value = 'serial_num' |
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desc.dp_desc.value = 'dp_desc' |
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73
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self.switch.update_description(desc) |
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assert self.switch.description['manufacturer'] == 'mfr_desc' |
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assert self.switch.description['hardware'] == 'hw_desc' |
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assert self.switch.description['software'] == 'sw_desc' |
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assert self.switch.description['serial'] == 'serial_num' |
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assert self.switch.description['data_path'] == 'dp_desc' |
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def test_disable(self): |
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"""Test disable method.""" |
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intf = MagicMock() |
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self.switch.interfaces = {"1": intf} |
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86
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self.switch.disable() |
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intf.disable.assert_called() |
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assert not self.switch._enabled |
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92
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def test_disconnect(self): |
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"""Test disconnect method.""" |
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self.switch.disconnect() |
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assert self.switch.connection is None |
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def test_get_interface_by_port_no(self): |
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"""Test get_interface_by_port_no method.""" |
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interface_1 = MagicMock(port_number='1') |
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interface_2 = MagicMock(port_number='2') |
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self.switch.interfaces = {'1': interface_1, '2': interface_2} |
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103
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104
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expected_interface_1 = self.switch.get_interface_by_port_no('1') |
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expected_interface_2 = self.switch.get_interface_by_port_no('3') |
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106
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assert expected_interface_1 == interface_1 |
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assert expected_interface_2 is None |
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def test_update_or_create_interface_case1(self): |
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"""Test update_or_create_interface method.""" |
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interface_1 = Interface(name='interface_2', port_number=2, |
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switch=self.switch) |
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self.switch.interfaces = {2: interface_1} |
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115
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self.switch.update_or_create_interface(2, name='new_interface_2') |
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assert self.switch.interfaces[2].name == 'new_interface_2' |
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def test_update_or_create_interface_case2(self): |
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"""Test update_or_create_interface method.""" |
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interface_1 = Interface(name='interface_2', port_number=2, |
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switch=self.switch) |
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self.switch.interfaces = {2: interface_1} |
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125
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self.switch.update_or_create_interface(3, name='new_interface_3') |
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assert self.switch.interfaces[2].name == 'interface_2' |
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assert self.switch.interfaces[3].name == 'new_interface_3' |
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def test_update_or_create_interface_case3(self): |
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"""Test update_or_create_interface method.""" |
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interface_1 = Interface(name='interface_2', port_number=2, |
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switch=self.switch) |
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self.switch.interfaces = {2: interface_1} |
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135
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self.switch.update_or_create_interface(3, name='new_interface_3') |
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assert self.switch.interfaces[2].name == 'interface_2' |
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assert self.switch.interfaces[3].name == 'new_interface_3' |
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139
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def test_get_flow_by_id(self): |
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"""Test get_flow_by_id method.""" |
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flow_1 = MagicMock(id='1') |
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flow_2 = MagicMock(id='2') |
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self.switch.flows = [flow_1, flow_2] |
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145
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expected_flow_1 = self.switch.get_flow_by_id('1') |
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expected_flow_2 = self.switch.get_flow_by_id('3') |
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assert expected_flow_1 == flow_1 |
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assert expected_flow_2 is None |
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def test_is_connected__true(self): |
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"""Test is_connected method.""" |
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connection = MagicMock() |
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connection.is_alive.return_value = True |
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connection.is_established.return_value = True |
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self.switch.connection = connection |
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assert self.switch.is_connected() |
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def test_is_connected__not_connection(self): |
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"""Test is_connected method when connection does not exist.""" |
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self.switch.connection = None |
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assert not self.switch.is_connected() |
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166
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def test_is_connected__not_alive(self): |
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"""Test is_connected method when switch has connection timeout.""" |
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connection = MagicMock() |
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connection.is_alive.return_value = True |
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connection.is_established.return_value = True |
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self.switch.connection = connection |
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self.switch.lastseen = datetime(1, 1, 1, 0, 0, 0, 0, timezone.utc) |
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assert not self.switch.is_connected() |
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def test_is_active(self): |
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"""Test is_active method.""" |
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self.switch.is_connected = MagicMock() |
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self.switch.is_connected.return_value = True |
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assert self.switch.is_active() |
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self.switch.is_connected.return_value = False |
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assert not self.switch.is_active() |
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183
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184
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def test_update_connection(self): |
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"""Test update_connection method.""" |
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186
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connection = MagicMock() |
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self.switch.update_connection(connection) |
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188
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189
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assert self.switch.connection == connection |
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assert self.switch.connection.switch == self.switch |
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191
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192
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1 |
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def test_update_features(self): |
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"""Test update_features method.""" |
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self.switch.update_features('features') |
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195
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196
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assert self.switch.features == 'features' |
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197
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198
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1 |
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def test_send(self): |
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199
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"""Test send method.""" |
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200
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1 |
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self.switch.send('buffer') |
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201
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202
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1 |
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self.switch.connection.send.assert_called_with('buffer') |
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203
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204
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1 |
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def test_send_error(self): |
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205
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"""Test send method to error case.""" |
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206
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1 |
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self.switch.connection.send.side_effect = SocketError |
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207
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208
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1 |
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with pytest.raises(SocketError): |
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209
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self.switch.send(b'data') |
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210
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211
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1 |
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@patch('kytos.core.switch.now', return_value=get_date()) |
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212
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1 |
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def test_update_lastseen(self, mock_now): |
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213
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"""Test update_lastseen method.""" |
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214
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1 |
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self.switch.update_lastseen() |
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215
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216
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1 |
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assert self.switch.lastseen == mock_now.return_value |
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217
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218
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1 |
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def test_update_interface(self): |
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219
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"""Test update_interface method.""" |
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220
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1 |
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interface = MagicMock(port_number=1) |
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221
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1 |
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self.switch.update_interface(interface) |
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222
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223
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assert self.switch.interfaces[1] == interface |
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224
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225
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1 |
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def test_remove_interface(self): |
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226
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"""Test remove_interface method.""" |
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227
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1 |
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intf = MagicMock(port_number=1) |
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228
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1 |
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self.switch.interfaces[1] = intf |
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229
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230
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1 |
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self.switch.remove_interface(intf) |
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231
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232
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1 |
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assert not self.switch.interfaces |
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233
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234
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1 |
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def test_update_mac_table(self): |
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235
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"""Test update_mac_table method.""" |
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236
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1 |
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mac = MagicMock(value='00:00:00:00:00:00') |
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237
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1 |
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self.switch.update_mac_table(mac, 1) |
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238
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1 |
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self.switch.update_mac_table(mac, 2) |
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239
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240
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1 |
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assert self.switch.mac2port[mac.value] == {1, 2} |
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241
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242
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1 |
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def test_last_flood(self): |
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243
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"""Test last_flood method.""" |
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244
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1 |
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self.switch.flood_table['hash'] = 'timestamp' |
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245
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1 |
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ethernet_frame = MagicMock() |
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246
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1 |
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ethernet_frame.get_hash.return_value = 'hash' |
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247
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248
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1 |
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last_flood = self.switch.last_flood(ethernet_frame) |
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249
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250
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1 |
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assert last_flood == 'timestamp' |
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251
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252
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1 |
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def test_last_flood__error(self): |
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253
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"""Test last_flood method to error case.""" |
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254
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1 |
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ethernet_frame = MagicMock() |
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255
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1 |
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ethernet_frame.get_hash.return_value = 'hash' |
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256
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257
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1 |
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last_flood = self.switch.last_flood(ethernet_frame) |
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258
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259
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1 |
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assert last_flood is None |
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260
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261
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1 |
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@patch('kytos.core.switch.now', return_value=get_date()) |
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262
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1 |
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def test_should_flood(self, _): |
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263
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"""Test should_flood method.""" |
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264
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1 |
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self.switch.flood_table['hash1'] = datetime(2000, 1, 1, 0, 0, 0, 0) |
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265
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1 |
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self.switch.flood_table['hash2'] = datetime(2000, 1, 1, 0, 0, 0, |
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266
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FLOOD_TIMEOUT) |
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267
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|
268
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1 |
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ethernet_frame = MagicMock() |
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269
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1 |
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ethernet_frame.get_hash.side_effect = ['hash1', 'hash2'] |
|
270
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|
271
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1 |
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should_flood_1 = self.switch.should_flood(ethernet_frame) |
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272
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1 |
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should_flood_2 = self.switch.should_flood(ethernet_frame) |
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273
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274
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1 |
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assert should_flood_1 |
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275
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1 |
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assert not should_flood_2 |
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276
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|
277
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1 |
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@patch('kytos.core.switch.now', return_value=get_date()) |
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278
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1 |
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def test_update_flood_table(self, mock_now): |
|
279
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"""Test update_flood_table method.""" |
|
280
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1 |
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ethernet_frame = MagicMock() |
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281
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1 |
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ethernet_frame.get_hash.return_value = 'hash' |
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282
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283
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1 |
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self.switch.update_flood_table(ethernet_frame) |
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284
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|
285
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1 |
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assert self.switch.flood_table['hash'] == mock_now.return_value |
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286
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287
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1 |
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def test_where_is_mac(self): |
|
288
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"""Test where_is_mac method.""" |
|
289
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1 |
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mac = MagicMock(value='00:00:00:00:00:00') |
|
290
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|
291
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1 |
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expected_ports_1 = self.switch.where_is_mac(mac) |
|
292
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|
293
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1 |
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self.switch.mac2port['00:00:00:00:00:00'] = set([1, 2, 3]) |
|
294
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1 |
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expected_ports_2 = self.switch.where_is_mac(mac) |
|
295
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|
296
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1 |
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assert expected_ports_1 is None |
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297
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1 |
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assert expected_ports_2 == [1, 2, 3] |
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298
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|
|
|
|
299
|
1 |
|
def test_as_dict_as_json(self): |
|
300
|
|
|
"""Test as_dict and as_json method.""" |
|
301
|
1 |
|
expected_dict = { |
|
302
|
|
|
'id': '00:00:00:00:00:00:00:01', |
|
303
|
|
|
'name': '00:00:00:00:00:00:00:01', |
|
304
|
|
|
'dpid': '00:00:00:00:00:00:00:01', |
|
305
|
|
|
'connection': 'addr:port', |
|
306
|
|
|
'ofp_version': '0x04', |
|
307
|
|
|
'type': 'switch', |
|
308
|
|
|
'manufacturer': '', |
|
309
|
|
|
'serial': '', |
|
310
|
|
|
'hardware': '', |
|
311
|
|
|
'software': None, |
|
312
|
|
|
'data_path': '', |
|
313
|
|
|
'interfaces': {}, |
|
314
|
|
|
'metadata': {}, |
|
315
|
|
|
'active': True, |
|
316
|
|
|
'enabled': True, |
|
317
|
|
|
'status': 'UP', |
|
318
|
|
|
'status_reason': [] |
|
319
|
|
|
} |
|
320
|
1 |
|
assert self.switch.as_dict() == expected_dict |
|
321
|
|
|
|
|
322
|
1 |
|
expected_json = json.dumps(expected_dict) |
|
323
|
|
|
|
|
324
|
1 |
|
assert self.switch.as_json() == expected_json |
|
325
|
|
|
|
|
326
|
1 |
|
def test_switch_initial_lastseen(self): |
|
327
|
|
|
"""Test lastseen attribute initialization.""" |
|
328
|
1 |
|
connection = MagicMock() |
|
329
|
1 |
|
connection.protocol.version = 0x04 |
|
330
|
1 |
|
switch = Switch('00:00:00:00:00:00:00:01', connection) |
|
331
|
1 |
|
assert switch.is_active() is False |
|
332
|
1 |
|
assert switch.lastseen == datetime(1, 1, 1, 0, 0, 0, 0, timezone.utc) |
|
333
|
|
|
|
|
334
|
1 |
|
def test_status_funcs(self) -> None: |
|
335
|
|
|
"""Test status_funcs.""" |
|
336
|
1 |
|
self.switch.enable() |
|
337
|
1 |
|
self.switch.activate() |
|
338
|
1 |
|
assert self.switch.is_active() |
|
339
|
1 |
|
Switch.register_status_func( |
|
340
|
|
|
"some_napp_some_func", |
|
341
|
|
|
lambda switch: EntityStatus.DOWN |
|
342
|
|
|
) |
|
343
|
1 |
|
Switch.register_status_reason_func( |
|
344
|
|
|
"some_napp_some_func", |
|
345
|
|
|
lambda iface: {'test_status'} |
|
346
|
|
|
) |
|
347
|
1 |
|
assert self.switch.status == EntityStatus.DOWN |
|
348
|
1 |
|
assert self.switch.status_reason == {'test_status'} |
|
349
|
1 |
|
Switch.register_status_func( |
|
350
|
|
|
"some_napp_some_func", |
|
351
|
|
|
lambda iface: None |
|
352
|
|
|
) |
|
353
|
1 |
|
Switch.register_status_reason_func( |
|
354
|
|
|
"some_napp_some_func", |
|
355
|
|
|
lambda iface: set() |
|
356
|
|
|
) |
|
357
|
1 |
|
assert self.switch.status == EntityStatus.UP |
|
358
|
|
|
assert self.switch.status_reason == set() |
|
359
|
|
|
|