Passed
Pull Request — master (#129)
by Carlos
03:13
created

TestMain.test_event_add_flow()   A

Complexity

Conditions 1

Size

Total Lines 11
Code Lines 10

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
eloc 10
nop 2
dl 0
loc 11
rs 9.9
c 0
b 0
f 0
1
"""Test Main methods."""
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from unittest import TestCase
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from unittest.mock import MagicMock, patch
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from kytos.lib.helpers import (get_connection_mock, get_controller_mock,
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                               get_kytos_event_mock, get_switch_mock,
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                               get_test_client)
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# pylint: disable=protected-access, too-many-public-methods
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class TestMain(TestCase):
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    """Tests for the Main class."""
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    API_URL = 'http://localhost:8181/api/kytos/flow_manager'
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    def setUp(self):
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        patch('kytos.core.helpers.run_on_thread', lambda x: x).start()
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        # pylint: disable=import-outside-toplevel
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        from napps.kytos.flow_manager.main import Main
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        self.addCleanup(patch.stopall)
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        controller = get_controller_mock()
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        self.switch_01 = get_switch_mock("00:00:00:00:00:00:00:01", 0x04)
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        self.switch_01.is_enabled.return_value = True
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        self.switch_01.flows = []
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        self.switch_02 = get_switch_mock("00:00:00:00:00:00:00:02", 0x04)
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        self.switch_02.is_enabled.return_value = False
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        self.switch_02.flows = []
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        controller.switches = {"00:00:00:00:00:00:00:01": self.switch_01,
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                               "00:00:00:00:00:00:00:02": self.switch_02}
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        self.napp = Main(controller)
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    def test_rest_list_without_dpid(self):
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        """Test list rest method withoud dpid."""
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        flow_dict = {
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            "priority": 13,
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            "cookie": 84114964,
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            "command": "add",
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            "match": {"dl_dst": "00:15:af:d5:38:98"},
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        }
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        flow_dict_2 = {
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            "priority": 18,
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            "cookie": 84114964,
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            "command": "add",
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            "match": {"dl_dst": "00:15:af:d5:38:98"},
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        }
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        flow_1 = MagicMock()
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        flow_1.as_dict.return_value = flow_dict
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        flow_2 = MagicMock()
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        flow_2.as_dict.return_value = flow_dict_2
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        self.switch_01.flows.append(flow_1)
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        self.switch_02.flows.append(flow_2)
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        api = get_test_client(self.napp.controller, self.napp)
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        url = f'{self.API_URL}/v2/flows'
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        response = api.get(url)
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        expected = {
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            '00:00:00:00:00:00:00:01': {'flows': [flow_dict]},
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            '00:00:00:00:00:00:00:02': {'flows': [flow_dict_2]},
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        }
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        self.assertEqual(response.json, expected)
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        self.assertEqual(response.status_code, 200)
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    def test_rest_list_with_dpid(self):
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        """Test list rest method with dpid."""
71
        flow_dict = {
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            "priority": 13,
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            "cookie": 84114964,
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            "command": "add",
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            "match": {"dl_dst": "00:15:af:d5:38:98"},
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        }
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        flow_1 = MagicMock()
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        flow_1.as_dict.return_value = flow_dict
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        self.switch_01.flows.append(flow_1)
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        api = get_test_client(self.napp.controller, self.napp)
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        url = f'{self.API_URL}/v2/flows/00:00:00:00:00:00:00:01'
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        response = api.get(url)
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        expected = {'00:00:00:00:00:00:00:01': {'flows': [flow_dict]}}
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        self.assertEqual(response.json, expected)
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        self.assertEqual(response.status_code, 200)
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    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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    def test_rest_add_and_delete_without_dpid(self, mock_install_flows):
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        """Test add and delete rest method without dpid."""
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        api = get_test_client(self.napp.controller, self.napp)
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        for method in ['flows', 'delete']:
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            url = f'{self.API_URL}/v2/{method}'
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            response_1 = api.post(url, json={'data': '123'})
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            response_2 = api.post(url)
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            self.assertEqual(response_1.status_code, 200)
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            self.assertEqual(response_2.status_code, 404)
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        self.assertEqual(mock_install_flows.call_count, 2)
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    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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    def test_rest_add_and_delete_with_dpid(self, mock_install_flows):
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        """Test add and delete rest method with dpid."""
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        api = get_test_client(self.napp.controller, self.napp)
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        for method in ['flows', 'delete']:
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            url_1 = f'{self.API_URL}/v2/{method}/00:00:00:00:00:00:00:01'
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            url_2 = f'{self.API_URL}/v2/{method}/00:00:00:00:00:00:00:02'
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            url_3 = f'{self.API_URL}/v2/{method}/00:00:00:00:00:00:00:03'
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            response_1 = api.post(url_1)
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            response_2 = api.post(url_1, json={'data': '123'})
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            response_3 = api.post(url_2, json={'data': '123'})
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            response_4 = api.post(url_3, json={'data': '123'})
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            self.assertEqual(response_1.status_code, 404)
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            self.assertEqual(response_2.status_code, 200)
123
            if method == 'flows':
124
                self.assertEqual(response_3.status_code, 404)
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            else:
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                self.assertEqual(response_3.status_code, 200)
127
            self.assertEqual(response_4.status_code, 404)
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        self.assertEqual(mock_install_flows.call_count, 3)
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    def test_get_all_switches_enabled(self):
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        """Test _get_all_switches_enabled method."""
133
        switches = self.napp._get_all_switches_enabled()
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        self.assertEqual(switches, [self.switch_01])
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137 View Code Duplication
    @patch('napps.kytos.flow_manager.main.Main._store_changed_flows')
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138
    @patch('napps.kytos.flow_manager.main.Main._send_napp_event')
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    @patch('napps.kytos.flow_manager.main.Main._add_flow_mod_sent')
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    @patch('napps.kytos.flow_manager.main.Main._send_flow_mod')
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    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
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    def test_install_flows(self, *args):
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        """Test _install_flows method."""
144
        (mock_flow_factory, mock_send_flow_mod, mock_add_flow_mod_sent,
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         mock_send_napp_event, _) = args
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        serializer = MagicMock()
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        flow = MagicMock()
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        flow_mod = MagicMock()
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        flow.as_of_add_flow_mod.return_value = flow_mod
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        serializer.from_dict.return_value = flow
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        mock_flow_factory.return_value = serializer
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        flows_dict = {'flows': [MagicMock()]}
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        switches = [self.switch_01]
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        self.napp._install_flows('add', flows_dict, switches)
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        mock_send_flow_mod.assert_called_with(flow.switch, flow_mod)
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        mock_add_flow_mod_sent.assert_called_with(flow_mod.header.xid,
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                                                  flow, 'add')
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        mock_send_napp_event.assert_called_with(self.switch_01, flow, 'add')
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163 View Code Duplication
    @patch('napps.kytos.flow_manager.main.Main._store_changed_flows')
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164
    @patch('napps.kytos.flow_manager.main.Main._send_napp_event')
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    @patch('napps.kytos.flow_manager.main.Main._add_flow_mod_sent')
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    @patch('napps.kytos.flow_manager.main.Main._send_flow_mod')
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    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
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    def test_install_flows_with_delete_strict(self, *args):
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        """Test _install_flows method with strict delete command."""
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        (mock_flow_factory, mock_send_flow_mod, mock_add_flow_mod_sent,
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         mock_send_napp_event, _) = args
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        serializer = MagicMock()
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        flow = MagicMock()
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        flow_mod = MagicMock()
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        flow.as_of_strict_delete_flow_mod.return_value = flow_mod
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        serializer.from_dict.return_value = flow
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        mock_flow_factory.return_value = serializer
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        flows_dict = {'flows': [MagicMock()]}
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        switches = [self.switch_01]
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        self.napp._install_flows('delete_strict', flows_dict, switches)
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        mock_send_flow_mod.assert_called_with(flow.switch, flow_mod)
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        mock_add_flow_mod_sent.assert_called_with(flow_mod.header.xid,
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                                                  flow, 'delete_strict')
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        mock_send_napp_event.assert_called_with(self.switch_01, flow,
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                                                'delete_strict')
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    @patch('napps.kytos.flow_manager.main.Main._install_flows')
191
    def test_event_add_flow(self, mock_install_flows):
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        """Test method for installing flows on the switches through events."""
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        dpid = "00:00:00:00:00:00:00:01"
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        mock_flow_dict = MagicMock()
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        event = get_kytos_event_mock(name='kytos.flow_manager.flows.install',
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                                     content={'dpid': dpid,
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                                              'command': 'add',
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                                              'flow_dict': mock_flow_dict})
199
        self.napp.event_add_flow(event)
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        mock_install_flows.assert_called()
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    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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    def test_event_add_flow_delete(self, mock_install_flows):
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        """Test method for removing flows on the switches through events."""
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        dpid = "00:00:00:00:00:00:00:01"
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        mock_flow_dict = MagicMock()
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        event = get_kytos_event_mock(name='kytos.flow_manager.flows.delete',
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                                     content={'dpid': dpid,
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                                              'command': 'delete',
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                                              'flow_dict': mock_flow_dict})
211
        self.napp.event_add_flow(event)
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        mock_install_flows.assert_called()
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214
    def test_add_flow_mod_sent(self):
215
        """Test _add_flow_mod_sent method."""
216
        xid = 0
217
        flow = MagicMock()
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219
        self.napp._add_flow_mod_sent(xid, flow, 'add')
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        self.assertEqual(self.napp._flow_mods_sent[xid], (flow, 'add'))
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    @patch('kytos.core.buffers.KytosEventBuffer.put')
224
    def test_send_flow_mod(self, mock_buffers_put):
225
        """Test _send_flow_mod method."""
226
        switch = get_switch_mock("00:00:00:00:00:00:00:01", 0x04)
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        flow_mod = MagicMock()
228
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        self.napp._send_flow_mod(switch, flow_mod)
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        mock_buffers_put.assert_called()
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233
    @patch('kytos.core.buffers.KytosEventBuffer.put')
234
    def test_send_napp_event(self, mock_buffers_put):
235
        """Test _send_napp_event method."""
236
        switch = get_switch_mock("00:00:00:00:00:00:00:01", 0x04)
237
        flow = MagicMock()
238
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        for command in ['add', 'delete', 'delete_strict', 'error']:
240
            self.napp._send_napp_event(switch, flow, command)
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        self.assertEqual(mock_buffers_put.call_count, 4)
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    @patch('napps.kytos.flow_manager.main.Main._send_napp_event')
245
    def test_handle_errors(self, mock_send_napp_event):
246
        """Test handle_errors method."""
247
        flow = MagicMock()
248
        self.napp._flow_mods_sent[0] = (flow, 'add')
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        switch = get_switch_mock("00:00:00:00:00:00:00:01")
251
        switch.connection = get_connection_mock(
252
            0x04, get_switch_mock("00:00:00:00:00:00:00:02"))
253
254
        protocol = MagicMock()
255
        protocol.unpack.return_value = 'error_packet'
256
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        switch.connection.protocol = protocol
258
259
        message = MagicMock()
260
        message.header.xid.value = 0
261
        message.error_type = 2
262
        message.code = 5
263
        event = get_kytos_event_mock(name='.*.of_core.*.ofpt_error',
264
                                     content={'message': message,
265
                                              'source': switch.connection})
266
        self.napp.handle_errors(event)
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        mock_send_napp_event.assert_called_with(flow.switch, flow, 'error',
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                                                error_command='add',
270
                                                error_code=5, error_type=2)
271
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    @patch("napps.kytos.flow_manager.main.StoreHouse.get_data")
273
    def test_load_flows(self, mock_storehouse):
274
        """Test load flows."""
275
        self.napp._load_flows()
276
        mock_storehouse.assert_called()
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    @patch("napps.kytos.flow_manager.main.Main._install_flows")
279
    def test_resend_stored_flows(self, mock_install_flows):
280
        """Test resend stored flows."""
281
        dpid = "00:00:00:00:00:00:00:01"
282
        switch = get_switch_mock(dpid, 0x04)
283
        mock_event = MagicMock()
284
        flow = {"command": "add", "flow": MagicMock()}
285
286
        flows = {"flow_list": [flow]}
287
        mock_event.content = {"switch": switch}
288
        self.napp.controller.switches = {dpid: switch}
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        self.napp.stored_flows = {dpid: flows}
290
        self.napp.resend_stored_flows(mock_event)
291
        mock_install_flows.assert_called()
292
293
    @patch("napps.kytos.of_core.flow.FlowFactory.get_class")
294
    @patch("napps.kytos.flow_manager.main.StoreHouse.save_flow")
295
    def test_store_changed_flows(self, mock_save_flow, _):
296
        """Test store changed flows."""
297
        dpid = "00:00:00:00:00:00:00:01"
298
        switch = get_switch_mock(dpid, 0x04)
299
        switch.id = dpid
300
        flow = {
301
            "priority": 17,
302
            "cookie": 84114964,
303
            "command": "add",
304
            "match": {"dl_dst": "00:15:af:d5:38:98"},
305
        }
306
        match_fields = {
307
            "priority": 17,
308
            "cookie": 84114964,
309
            "command": "add",
310
            "dl_dst": "00:15:af:d5:38:98",
311
        }
312
        flows = {"flow": flow}
313
314
        command = "add"
315
        flow_list = {
316
            "flow_list": [
317
                {"match_fields": match_fields, "command": "delete",
318
                 "flow": flow}
319
            ]
320
        }
321
        self.napp.stored_flows = {dpid: flow_list}
322
        self.napp._store_changed_flows(command, flows, switch)
323
        mock_save_flow.assert_called()
324
325
        self.napp.stored_flows = {}
326
        self.napp._store_changed_flows(command, flows, switch)
327
        mock_save_flow.assert_called()
328
329 View Code Duplication
    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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330
    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
331
    def test_check_switch_consistency_add(self, *args):
332
        """Test check_switch_consistency method.
333
334
        This test checks the case when a flow is missing in switch and have the
335
        ADD command.
336
        """
337
        (mock_flow_factory, mock_install_flows) = args
338
        dpid = "00:00:00:00:00:00:00:01"
339
        switch = get_switch_mock(dpid, 0x04)
340
        switch.flows = []
341
342
        flow_1 = MagicMock()
343
        flow_1.as_dict.return_value = {'flow_1': 'data'}
344
345
        flow_list = [{"command": "add",
346
                      "flow": {'flow_1': 'data'}
347
                      }]
348
        serializer = MagicMock()
349
350
        mock_flow_factory.return_value = serializer
351
        self.napp.stored_flows = {dpid: {"flow_list": flow_list}}
352
        self.napp.check_switch_consistency(switch)
353
        mock_install_flows.assert_called()
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355 View Code Duplication
    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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356
    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
357
    def test_check_switch_consistency_delete(self, *args):
358
        """Test check_switch_consistency method.
359
360
        This test checks the case when a flow is missing in switch and have the
361
        DELETE command.
362
        """
363
        (mock_flow_factory, mock_install_flows) = args
364
        dpid = "00:00:00:00:00:00:00:01"
365
        switch = get_switch_mock(dpid, 0x04)
366
367
        flow_1 = MagicMock()
368
        flow_1.as_dict.return_value = {'flow_1': 'data'}
369
370
        flow_list = [{"command": "delete",
371
                      "flow": {'flow_1': 'data'}
372
                      }]
373
        serializer = MagicMock()
374
        serializer.from_dict.return_value = flow_1
375
376
        switch.flows = [flow_1]
377
378
        mock_flow_factory.return_value = serializer
379
        self.napp.stored_flows = {dpid: {"flow_list": flow_list}}
380
        self.napp.check_switch_consistency(switch)
381
        mock_install_flows.assert_called()
382
383 View Code Duplication
    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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384
    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
385
    def test_check_storehouse_consistency(self, *args):
386
        """Test check_storehouse_consistency method.
387
388
        This test checks the case when a flow is missing in storehouse.
389
        """
390
        (mock_flow_factory, mock_install_flows) = args
391
        dpid = "00:00:00:00:00:00:00:01"
392
        switch = get_switch_mock(dpid, 0x04)
393
394
        flow_1 = MagicMock()
395
        flow_1.as_dict.return_value = {'flow_1': 'data'}
396
397
        switch.flows = [flow_1]
398
399
        flow_list = [{"command": "add",
400
                      "flow": {'flow_2': 'data'}
401
                      }]
402
        serializer = MagicMock()
403
404
        mock_flow_factory.return_value = serializer
405
        self.napp.stored_flows = {dpid: {"flow_list": flow_list}}
406
        self.napp.check_storehouse_consistency(switch)
407
        mock_install_flows.assert_called()
408
409 View Code Duplication
    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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410
    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
411
    @patch("napps.kytos.flow_manager.main.StoreHouse.save_flow")
412
    def test_no_strict_delete(self, *args):
413
        """Test the non-strict matching method.
414
415
        Test non-strict matching to delete a Flow using a cookie.
416
        """
417
        (mock_save_flow, _, _) = args
418
        dpid = "00:00:00:00:00:00:00:01"
419
        switch = get_switch_mock(dpid, 0x04)
420
        switch.id = dpid
421
        stored_flow = {
422
            "command": "add",
423
            "flow": {
424
                "actions": [{"action_type": "set_vlan", "vlan_id": 300}],
425
                "cookie": 6191162389751548793,
426
                "match": {"dl_vlan": 300, "in_port": 1},
427
            },
428
        }
429
        stored_flow2 = {
430
            "command": "add",
431
            "flow": {
432
                "actions": [],
433
                "cookie": 4961162389751548787,
434
                "match": {"in_port": 2},
435
            },
436
        }
437
        flow_to_install = {
438
            "cookie": 6191162389751548793,
439
            "cookie_mask": 18446744073709551615,
440
        }
441
        flow_list = {"flow_list": [stored_flow, stored_flow2]}
442
        command = "delete"
443
        self.napp.stored_flows = {dpid: flow_list}
444
445
        self.napp._store_changed_flows(command, flow_to_install, switch)
446
        mock_save_flow.assert_called()
447
        self.assertEqual(len(self.napp.stored_flows), 1)
448
449 View Code Duplication
    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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450
    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
451
    @patch("napps.kytos.flow_manager.main.StoreHouse.save_flow")
452
    def test_no_strict_delete_with_ipv4(self, *args):
453
        """Test the non-strict matching method.
454
455
        Test non-strict matching to delete a Flow using IPv4.
456
        """
457
        (mock_save_flow, _, _) = args
458
        dpid = "00:00:00:00:00:00:00:01"
459
        switch = get_switch_mock(dpid, 0x04)
460
        switch.id = dpid
461
        stored_flow = {
462
            "command": "add",
463
            "flow": {
464
                "priority": 10,
465
                "cookie": 84114904,
466
                "match": {
467
                    "ipv4_src": "192.168.1.120",
468
                    "ipv4_dst": "192.168.0.2",
469
                },
470
                "actions": [],
471
            },
472
        }
473
        stored_flow2 = {
474
            "command": "add",
475
            "flow": {
476
                "actions": [],
477
                "cookie": 4961162389751548787,
478
                "match": {"in_port": 2},
479
            },
480
        }
481
        flow_to_install = {"match": {"ipv4_src": '192.168.1.1/24'}}
482
        flow_list = {"flow_list": [stored_flow, stored_flow2]}
483
        command = "delete"
484
        self.napp.stored_flows = {dpid: flow_list}
485
486
        self.napp._store_changed_flows(command, flow_to_install, switch)
487
        mock_save_flow.assert_called()
488
        self.assertEqual(len(self.napp.stored_flows[dpid]['flow_list']), 2)
489
490 View Code Duplication
    @patch('napps.kytos.flow_manager.main.Main._install_flows')
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491
    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
492
    @patch("napps.kytos.flow_manager.main.StoreHouse.save_flow")
493
    def test_no_strict_delete_with_ipv4_fail(self, *args):
494
        """Test the non-strict matching method.
495
496
        Test non-strict Fail case matching to delete a Flow using IPv4.
497
        """
498
        (mock_save_flow, _, _) = args
499
        dpid = "00:00:00:00:00:00:00:01"
500
        switch = get_switch_mock(dpid, 0x04)
501
        switch.id = dpid
502
        stored_flow = {
503
            "command": "add",
504
            "flow": {
505
                "priority": 10,
506
                "cookie": 84114904,
507
                "match": {
508
                    "ipv4_src": "192.168.2.1",
509
                    "ipv4_dst": "192.168.0.2",
510
                },
511
                "actions": [],
512
            },
513
        }
514
        stored_flow2 = {
515
            "command": "add",
516
            "flow": {
517
                "actions": [],
518
                "cookie": 4961162389751548787,
519
                "match": {"in_port": 2},
520
            },
521
        }
522
        flow_to_install = {"match": {"ipv4_src": '192.168.1.1/24'}}
523
        flow_list = {"flow_list": [stored_flow, stored_flow2]}
524
        command = "delete"
525
        self.napp.stored_flows = {dpid: flow_list}
526
527
        self.napp._store_changed_flows(command, flow_to_install, switch)
528
        mock_save_flow.assert_called()
529
        self.assertEqual(len(self.napp.stored_flows[dpid]['flow_list']), 3)
530
531
    @patch('napps.kytos.flow_manager.main.Main._install_flows')
532
    @patch('napps.kytos.flow_manager.main.FlowFactory.get_class')
533
    @patch("napps.kytos.flow_manager.main.StoreHouse.save_flow")
534
    def test_no_strict_delete_of10(self, *args):
535
        """Test the non-strict matching method.
536
537
        Test non-strict matching to delete a Flow using OF10.
538
        """
539
        (mock_save_flow, _, _) = args
540
        dpid = "00:00:00:00:00:00:00:01"
541
        switch = get_switch_mock(dpid, 0x01)
542
        switch.id = dpid
543
        stored_flow = {
544
            "command": "add",
545
            "flow": {
546
                "actions": [{"max_len": 65535, "port": 6}],
547
                "cookie": 4961162389751548787,
548
                "match": {
549
                    "in_port": 80,
550
                    "dl_src": "00:00:00:00:00:00",
551
                    "dl_dst": "f2:0b:a4:7d:f8:ea",
552
                    "dl_vlan": 0,
553
                    "dl_vlan_pcp": 0,
554
                    "dl_type": 0,
555
                    "nw_tos": 0,
556
                    "nw_proto": 0,
557
                    "nw_src": "192.168.0.1",
558
                    "nw_dst": "0.0.0.0",
559
                    "tp_src": 0,
560
                    "tp_dst": 0,
561
                },
562
                "out_port": 65532,
563
                "priority": 123,
564
            },
565
        }
566
        stored_flow2 = {
567
            "command": "add",
568
            "flow": {
569
                "actions": [],
570
                "cookie": 4961162389751654,
571
                "match": {
572
                    "in_port": 2,
573
                    "dl_src": "00:00:00:00:00:00",
574
                    "dl_dst": "f2:0b:a4:7d:f8:ea",
575
                    "dl_vlan": 0,
576
                    "dl_vlan_pcp": 0,
577
                    "dl_type": 0,
578
                    "nw_tos": 0,
579
                    "nw_proto": 0,
580
                    "nw_src": "192.168.0.1",
581
                    "nw_dst": "0.0.0.0",
582
                    "tp_src": 0,
583
                    "tp_dst": 0,
584
                },
585
                "out_port": 655,
586
                "priority": 1,
587
            },
588
        }
589
        flow_to_install = {"match": {"in_port": 80, "wildcards": 4194303}}
590
        flow_list = {"flow_list": [stored_flow, stored_flow2]}
591
        command = "delete"
592
        self.napp.stored_flows = {dpid: flow_list}
593
594
        self.napp._store_changed_flows(command, flow_to_install, switch)
595
        mock_save_flow.assert_called()
596
        self.assertEqual(len(self.napp.stored_flows[dpid]['flow_list']), 1)
597