build.tests.unit.models.test_evc_deploy

Complexity

Total Complexity

73

Size/Duplication

Total Lines	1593
Duplicated Lines	0 %

Importance

Changes

0

45 Methods

Rating	Name	Duplication	Size	Complexity
A	TestEVC.test_prepare_pop_flow()	0	28	1
A	TestEVC.test_should_deploy_case1()	0	15	1
A	TestEVC.test_send_flow_mods_case1()	0	18	1
A	TestEVC.test_send_flow_mods_case2()	0	17	1
A	TestEVC.test_prepare_flow_mod()	0	26	1
A	TestEVC.test_should_deploy_case4()	0	15	1
A	TestEVC.setUp()	0	8	1
A	TestEVC.test_primary_links_zipped()	0	2	1
A	TestEVC.test_should_deploy_case2()	0	15	1
A	TestEVC.test_send_flow_mods_error()	0	16	2
A	TestEVC.test_should_deploy_case3()	0	15	1
A	TestEVC.create_evc_inter_switch()	0	42	1
A	TestEVC.test_is_using_backup_path()	0	5	1
A	TestEVC.test_remove()	0	11	1
B	TestEVC.test_deploy_successfully()	0	47	1
A	TestEVC.create_evc_intra_switch()	0	27	1
D	TestEVC.test_prepare_push_flow()	0	57	12
B	TestEVC.test_remove_failover_flows_exclude_uni_switches()	0	67	1
A	TestEVC.test_get_failover_flows()	0	11	1
B	TestEVC.test_deploy_fail()	0	53	1
A	TestEVC.test_is_using_primary_path()	0	5	1
B	TestEVC.test_remove_current_flows()	0	71	1
A	TestEVC.test_deploy_to_backup_path1()	0	30	1
B	TestEVC.test_check_list_traces()	0	94	2
A	TestEVC.test_remove_path_flows()	0	53	1
A	TestEVC.test_is_eligible_for_failover_path()	0	7	1
A	TestEVC.test_install_nni_flows()	0	41	1
B	TestEVC.test_remove_failover_flows_include_all()	0	66	1
A	TestEVC.test_is_failover_path_affected_by_link()	0	11	1
A	TestEVC.test_is_primary_path_affected_by_link()	0	4	1
B	TestEVC.test_deploy_error()	0	72	1
B	TestEVC.test_deploy_direct_uni_flows_untagged_any()	0	83	1
A	TestEVC.test_get_value_from_uni_tag()	0	17	1
A	TestEVC.test_is_using_dynamic_path()	0	7	1
A	TestEVC.test_is_backup_path_affected_by_link()	0	4	1
A	TestEVC.test_deploy()	0	28	1
B	TestEVC.test_deploy_without_path_case1()	0	79	1
A	TestEVC.test_get_path_status()	0	22	1
B	TestEVC.test_setup_failover_path()	0	65	1
F	TestEVC.test_deploy_direct_uni_flows()	0	74	16
A	TestEVC.test_run_sdntrace()	0	24	1
A	TestEVC.test_get_failover_path_vandidates()	0	8	1
B	TestEVC.test_install_uni_flows()	0	112	1
A	TestEVC.test_run_bulk_sdntraces()	0	29	1
A	TestEVC.test_is_affected_by_link()	0	4	1

"""Method to thest EVCDeploy class."""
import sys
from unittest import TestCase
from unittest.mock import MagicMock, Mock, patch, call

from kytos.core.common import EntityStatus
from kytos.core.exceptions import KytosNoTagAvailableError
from kytos.core.interface import Interface
from kytos.core.switch import Switch
from kytos.lib.helpers import get_controller_mock

# pylint: disable=wrong-import-position
sys.path.insert(0, "/var/lib/kytos/napps/..")
# pylint: enable=wrong-import-position

from napps.kytos.mef_eline.models import EVC, EVCDeploy, Path  # NOQA
from napps.kytos.mef_eline.settings import (
    MANAGER_URL,
    SDN_TRACE_CP_URL,
    EVPL_SB_PRIORITY,
    EPL_SB_PRIORITY
)  # NOQA
from napps.kytos.mef_eline.exceptions import FlowModException  # NOQA
from napps.kytos.mef_eline.tests.helpers import (
    get_link_mocked,
    get_uni_mocked,
)  # NOQA


# pylint: disable=too-many-public-methods, too-many-lines
class TestEVC(TestCase):
    """Tests to verify EVC class."""

    def setUp(self):
        attributes = {
            "controller": get_controller_mock(),
            "name": "circuit_for_tests",
            "uni_a": get_uni_mocked(is_valid=True),
            "uni_z": get_uni_mocked(is_valid=True),
        }
        self.evc_deploy = EVCDeploy(**attributes)

    def test_primary_links_zipped(self):
        """Test primary links zipped method."""

    @staticmethod
    @patch("napps.kytos.mef_eline.models.evc.log")
    def test_should_deploy_case1(log_mock):
        """Test should deploy method without primary links."""
        log_mock.debug.return_value = True
        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": get_uni_mocked(is_valid=True),
            "uni_z": get_uni_mocked(is_valid=True),
        }

        evc = EVC(**attributes)
        evc.should_deploy()
        log_mock.debug.assert_called_with("Path is empty.")

    @patch("napps.kytos.mef_eline.models.evc.log")
    def test_should_deploy_case2(self, log_mock):
        """Test should deploy method with disable circuit."""
        log_mock.debug.return_value = True
        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": get_uni_mocked(is_valid=True),
            "uni_z": get_uni_mocked(is_valid=True),
            "primary_links": [get_link_mocked(), get_link_mocked()],
        }
        evc = EVC(**attributes)

        self.assertFalse(evc.should_deploy(attributes["primary_links"]))
        log_mock.debug.assert_called_with(f"{evc} is disabled.")

    @patch("napps.kytos.mef_eline.models.evc.log")
    def test_should_deploy_case3(self, log_mock):
        """Test should deploy method with enabled and not active circuit."""
        log_mock.debug.return_value = True
        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": get_uni_mocked(is_valid=True),
            "uni_z": get_uni_mocked(is_valid=True),
            "primary_links": [get_link_mocked(), get_link_mocked()],
            "enabled": True,
        }
        evc = EVC(**attributes)
        self.assertTrue(evc.should_deploy(attributes["primary_links"]))
        log_mock.debug.assert_called_with(f"{evc} will be deployed.")

    @patch("napps.kytos.mef_eline.models.evc.log")
    def test_should_deploy_case4(self, log_mock):
        """Test should deploy method with enabled and active circuit."""
        log_mock.debug.return_value = True
        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": get_uni_mocked(is_valid=True),
            "uni_z": get_uni_mocked(is_valid=True),
            "primary_links": [get_link_mocked(), get_link_mocked()],
            "enabled": True,
            "active": True,
        }
        evc = EVC(**attributes)
        self.assertFalse(evc.should_deploy(attributes["primary_links"]))

    @patch("napps.kytos.mef_eline.models.evc.requests")
    def test_send_flow_mods_case1(self, requests_mock):
        """Test if you are sending flow_mods."""
        flow_mods = {"id": 20}
        switch = Mock(spec=Switch, id=1)

        response = MagicMock()
        response.status_code = 201
        requests_mock.post.return_value = response

        # pylint: disable=protected-access
        EVC._send_flow_mods(switch.id, flow_mods)

        expected_endpoint = f"{MANAGER_URL}/flows/{switch.id}"
        expected_data = {"flows": flow_mods, "force": False}
        self.assertEqual(requests_mock.post.call_count, 1)
        requests_mock.post.assert_called_once_with(
            expected_endpoint, json=expected_data
        )

    @patch("napps.kytos.mef_eline.models.evc.requests")
    def test_send_flow_mods_case2(self, requests_mock):
        """Test if you are sending flow_mods."""
        flow_mods = {"id": 20}
        switch = Mock(spec=Switch, id=1)
        response = MagicMock()
        response.status_code = 201
        requests_mock.post.return_value = response

        # pylint: disable=protected-access
        EVC._send_flow_mods(switch.id, flow_mods, command='delete', force=True)

        expected_endpoint = f"{MANAGER_URL}/delete/{switch.id}"
        expected_data = {"flows": flow_mods, "force": True}
        self.assertEqual(requests_mock.post.call_count, 1)
        requests_mock.post.assert_called_once_with(
            expected_endpoint, json=expected_data
        )

    @patch("napps.kytos.mef_eline.models.evc.requests")
    def test_send_flow_mods_error(self, requests_mock):
        """Test flow_manager call fails."""
        flow_mods = {"id": 20}
        switch = Mock(spec=Switch, id=1)
        response = MagicMock()
        response.status_code = 415
        requests_mock.post.return_value = response

        # pylint: disable=protected-access
        with self.assertRaises(FlowModException):
            EVC._send_flow_mods(
                switch.id,
                flow_mods,
                command='delete',
                force=True
            )

    def test_prepare_flow_mod(self):
        """Test prepare flow_mod method."""
        interface_a = Interface("eth0", 1, Mock(spec=Switch))
        interface_z = Interface("eth1", 3, Mock(spec=Switch))
        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": get_uni_mocked(is_valid=True),
            "uni_z": get_uni_mocked(is_valid=True),
            "primary_links": [get_link_mocked(), get_link_mocked()],
            "enabled": True,
            "active": True,
        }
        evc = EVC(**attributes)

        # pylint: disable=protected-access
        flow_mod = evc._prepare_flow_mod(interface_a, interface_z)
        expected_flow_mod = {
            "match": {"in_port": interface_a.port_number},
            "cookie": evc.get_cookie(),
            "actions": [
                {"action_type": "output", "port": interface_z.port_number}
            ],
            "priority": EVPL_SB_PRIORITY,
        }
        self.assertEqual(expected_flow_mod, flow_mod)

    def test_prepare_pop_flow(self):
        """Test prepare pop flow  method."""
        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": get_uni_mocked(interface_port=1, is_valid=True),
            "uni_z": get_uni_mocked(interface_port=2, is_valid=True),
        }
        evc = EVC(**attributes)
        interface_a = evc.uni_a.interface
        interface_z = evc.uni_z.interface
        in_vlan = 10

        # pylint: disable=protected-access
        flow_mod = evc._prepare_pop_flow(
            interface_a, interface_z, in_vlan
        )

        expected_flow_mod = {
            "match": {"in_port": interface_a.port_number, "dl_vlan": in_vlan},
            "cookie": evc.get_cookie(),
            "actions": [
                {"action_type": "pop_vlan"},
                {"action_type": "output", "port": interface_z.port_number},
            ],
            "priority": EVPL_SB_PRIORITY,
        }
        self.assertEqual(expected_flow_mod, flow_mod)

    # pylint: disable=too-many-branches
    def test_prepare_push_flow(self):
        """Test prepare push flow method."""
        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": get_uni_mocked(interface_port=1, is_valid=True),
            "uni_z": get_uni_mocked(interface_port=2, is_valid=True),
        }
        evc = EVC(**attributes)
        interface_a = evc.uni_a.interface
        interface_z = evc.uni_z.interface
        out_vlan_a = 20

        for in_vlan_a in [100, "4096/4096", 0, None]:
            for in_vlan_z in [50, "4096/4096", 0, None]:
                with self.subTest(in_vlan_a=in_vlan_a, in_vlan_z=in_vlan_z):
                    # pylint: disable=protected-access
                    flow_mod = evc._prepare_push_flow(interface_a, interface_z,
                                                      in_vlan_a, out_vlan_a,
                                                      in_vlan_z)
                    expected_flow_mod = {
                        'match': {'in_port': interface_a.port_number},
                        'cookie': evc.get_cookie(),
                        'actions': [
                            {'action_type': 'push_vlan', 'tag_type': 's'},
                            {'action_type': 'set_vlan', 'vlan_id': out_vlan_a},
                            {
                                'action_type': 'output',
                                'port': interface_z.port_number
                            }
                        ],
                        "priority": EVPL_SB_PRIORITY,
                    }
                    if in_vlan_a is not None:
                        expected_flow_mod['match']['dl_vlan'] = in_vlan_a
                    else:
                        expected_flow_mod['priority'] = EPL_SB_PRIORITY

                    if in_vlan_z not in {"4096/4096", 0, None}:
                        new_action = {"action_type": "set_vlan",
                                      "vlan_id": in_vlan_z}
                        expected_flow_mod["actions"].insert(0, new_action)

                    if in_vlan_a not in {"4096/4096", 0, None}:
                        if in_vlan_z == 0:
                            new_action = {"action_type": "pop_vlan"}
                            expected_flow_mod["actions"].insert(0, new_action)
                    elif in_vlan_a == "4096/4096":
                        if in_vlan_z == 0:
                            new_action = {"action_type": "pop_vlan"}
                            expected_flow_mod["actions"].insert(0, new_action)
                    elif not in_vlan_a:
                        if in_vlan_z not in {"4096/4096", 0, None}:
                            new_action = {"action_type": "push_vlan",
                                          "tag_type": "c"}
                            expected_flow_mod["actions"].insert(0, new_action)
                    self.assertEqual(expected_flow_mod, flow_mod)

    @staticmethod
    @patch("napps.kytos.mef_eline.models.evc.EVC._send_flow_mods")
    def test_install_uni_flows(send_flow_mods_mock):
        """Test install uni flows method.

        This test will verify the flows send to the send_flow_mods method.
        """
        evc = TestEVC.create_evc_inter_switch()

        # pylint: disable=protected-access
        evc._install_uni_flows()
        send_flow_mods_mock.assert_not_called()

        # pylint: disable=protected-access
        evc._install_uni_flows(evc.primary_links)

        expected_flow_mod_a = [
            {
                "match": {
                    "in_port": evc.uni_a.interface.port_number,
                    "dl_vlan": evc.uni_a.user_tag.value,
                },
                "cookie": evc.get_cookie(),
                "actions": [
                    {
                        "action_type": "set_vlan",
                        "vlan_id": evc.uni_z.user_tag.value
                    },
                    {"action_type": "push_vlan", "tag_type": "s"},
                    {
                        "action_type": "set_vlan",
                        "vlan_id": evc.primary_links[0]
                        .get_metadata("s_vlan")
                        .value,
                    },
                    {
                        "action_type": "output",
                        "port": evc.primary_links[0].endpoint_a.port_number,
                    },
                ],
                "priority": EVPL_SB_PRIORITY,
            },
            {
                "match": {
                    "in_port": evc.primary_links[0].endpoint_a.port_number,
                    "dl_vlan": evc.primary_links[0]
                    .get_metadata("s_vlan")
                    .value,
                },
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "pop_vlan"},
                    {
                        "action_type": "output",
                        "port": evc.uni_a.interface.port_number,
                    },
                ],
                "priority": EVPL_SB_PRIORITY,
            },
        ]

        send_flow_mods_mock.assert_any_call(
            evc.uni_a.interface.switch.id, expected_flow_mod_a
        )

        expected_flow_mod_z = [
            {
                "match": {
                    "in_port": evc.uni_z.interface.port_number,
                    "dl_vlan": evc.uni_z.user_tag.value,
                },
                "cookie": evc.get_cookie(),
                "actions": [
                    {
                        "action_type": "set_vlan",
                        "vlan_id": evc.uni_a.user_tag.value
                    },
                    {"action_type": "push_vlan", "tag_type": "s"},
                    {
                        "action_type": "set_vlan",
                        "vlan_id": evc.primary_links[-1]
                        .get_metadata("s_vlan")
                        .value,
                    },
                    {
                        "action_type": "output",
                        "port": evc.primary_links[-1].endpoint_b.port_number,
                    },
                ],
                "priority": EVPL_SB_PRIORITY,
            },
            {
                "match": {
                    "in_port": evc.primary_links[-1].endpoint_b.port_number,
                    "dl_vlan": evc.primary_links[-1]
                    .get_metadata("s_vlan")
                    .value,
                },
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "pop_vlan"},
                    {
                        "action_type": "output",
                        "port": evc.uni_z.interface.port_number,
                    },
                ],
                "priority": EVPL_SB_PRIORITY,
            },
        ]

        send_flow_mods_mock.assert_any_call(
            evc.uni_z.interface.switch.id, expected_flow_mod_z
        )

    @staticmethod
    def create_evc_inter_switch():
        """Create inter-switch EVC with two links in the path"""
        uni_a = get_uni_mocked(
            interface_port=2,
            tag_value=82,
            switch_id=1,
            switch_dpid=1,
            is_valid=True,
        )
        uni_z = get_uni_mocked(
            interface_port=3,
            tag_value=83,
            switch_id=3,
            switch_dpid=3,
            is_valid=True,
        )

        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "id": "1",
            "uni_a": uni_a,
            "uni_z": uni_z,
            "primary_links": [
                get_link_mocked(
                    switch_a=Switch(1),
                    switch_b=Switch(2),
                    endpoint_a_port=9,
                    endpoint_b_port=10,
                    metadata={"s_vlan": 5},
                ),
                get_link_mocked(
                    switch_a=Switch(2),
                    switch_b=Switch(3),
                    endpoint_a_port=11,
                    endpoint_b_port=12,
                    metadata={"s_vlan": 6},
                ),
            ],
        }
        return EVC(**attributes)

    @staticmethod
    @patch("napps.kytos.mef_eline.models.evc.EVC._send_flow_mods")
    def test_install_nni_flows(send_flow_mods_mock):
        """Test install nni flows method.

        This test will verify the flows send to the send_flow_mods method.
        """
        evc = TestEVC.create_evc_inter_switch()

        # pylint: disable=protected-access
        evc._install_nni_flows(evc.primary_links)

        in_vlan = evc.primary_links[0].get_metadata("s_vlan").value
        out_vlan = evc.primary_links[-1].get_metadata("s_vlan").value

        in_port = evc.primary_links[0].endpoint_b.port_number
        out_port = evc.primary_links[-1].endpoint_a.port_number

        expected_flow_mods = [
            {
                "match": {"in_port": in_port, "dl_vlan": in_vlan},
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "set_vlan", "vlan_id": out_vlan},
                    {"action_type": "output", "port": out_port},
                ],
                "priority": EVPL_SB_PRIORITY
            },
            {
                "match": {"in_port": out_port, "dl_vlan": out_vlan},
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "set_vlan", "vlan_id": in_vlan},
                    {"action_type": "output", "port": in_port},
                ],
                "priority": EVPL_SB_PRIORITY,
            },
        ]

        dpid = evc.primary_links[0].endpoint_b.switch.id
        send_flow_mods_mock.assert_called_once_with(dpid, expected_flow_mods)

    @patch("requests.post")
    @patch("napps.kytos.mef_eline.controllers.ELineController.upsert_evc")
    @patch("napps.kytos.mef_eline.models.evc.log")
    @patch("napps.kytos.mef_eline.models.path.Path.choose_vlans")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_nni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_uni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_direct_uni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC.activate")
    @patch("napps.kytos.mef_eline.models.evc.EVC.should_deploy")
    def test_deploy_successfully(self, *args):
        """Test if all methods to deploy are called."""
        # pylint: disable=too-many-locals
        (
            should_deploy_mock,
            activate_mock,
            install_direct_uni_flows_mock,
            install_uni_flows_mock,
            install_nni_flows,
            chose_vlans_mock,
            log_mock,
            _,
            requests_mock,
        ) = args

        response = MagicMock()
        response.status_code = 201
        requests_mock.return_value = response

        should_deploy_mock.return_value = True
        evc = self.create_evc_inter_switch()
        deployed = evc.deploy_to_path(evc.primary_links)

        self.assertEqual(should_deploy_mock.call_count, 1)
        self.assertEqual(activate_mock.call_count, 1)
        self.assertEqual(install_uni_flows_mock.call_count, 1)
        self.assertEqual(install_nni_flows.call_count, 1)
        self.assertEqual(chose_vlans_mock.call_count, 1)
        log_mock.info.assert_called_with(f"{evc} was deployed.")
        self.assertTrue(deployed)

        # intra switch EVC
        evc = self.create_evc_intra_switch()
        self.assertTrue(evc.deploy_to_path(evc.primary_links))
        self.assertEqual(install_direct_uni_flows_mock.call_count, 1)
        self.assertEqual(activate_mock.call_count, 2)
        self.assertEqual(log_mock.info.call_count, 2)
        log_mock.info.assert_called_with(f"{evc} was deployed.")

    @patch("requests.post")
    @patch("napps.kytos.mef_eline.models.evc.log")
    @patch("napps.kytos.mef_eline.models.evc.EVC.discover_new_paths")
    @patch("napps.kytos.mef_eline.models.path.Path.choose_vlans")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_nni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_uni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC.activate")
    @patch("napps.kytos.mef_eline.models.evc.EVC.should_deploy")
    @patch("napps.kytos.mef_eline.models.EVC.sync")
    def test_deploy_fail(self, *args):
        """Test if all methods is ignored when the should_deploy is false."""
        # pylint: disable=too-many-locals
        (
            sync_mock,
            should_deploy_mock,
            activate_mock,
            install_uni_flows_mock,
            install_nni_flows,
            choose_vlans_mock,
            discover_new_paths_mock,
            log_mock,
            requests_mock,
        ) = args

        response = MagicMock()
        response.status_code = 201
        requests_mock.return_value = response

        evc = self.create_evc_inter_switch()
        should_deploy_mock.return_value = False
        discover_new_paths_mock.return_value = []
        deployed = evc.deploy_to_path()

        self.assertEqual(discover_new_paths_mock.call_count, 1)
        self.assertEqual(should_deploy_mock.call_count, 1)
        self.assertEqual(activate_mock.call_count, 0)
        self.assertEqual(install_uni_flows_mock.call_count, 0)
        self.assertEqual(install_nni_flows.call_count, 0)
        self.assertEqual(choose_vlans_mock.call_count, 0)
        self.assertEqual(log_mock.info.call_count, 0)
        self.assertEqual(sync_mock.call_count, 1)
        self.assertFalse(deployed)

        # NoTagAvailable on static path
        should_deploy_mock.return_value = True
        choose_vlans_mock.side_effect = KytosNoTagAvailableError("error")
        self.assertFalse(evc.deploy_to_path(evc.primary_links))

        # NoTagAvailable on dynamic path
        should_deploy_mock.return_value = False
        discover_new_paths_mock.return_value = [Path(['a', 'b'])]
        choose_vlans_mock.side_effect = KytosNoTagAvailableError("error")
        self.assertFalse(evc.deploy_to_path(evc.primary_links))

    @patch("napps.kytos.mef_eline.models.evc.log")
    @patch(
        "napps.kytos.mef_eline.models.evc.EVC.discover_new_paths",
        return_value=[],
    )
    @patch("napps.kytos.mef_eline.models.path.Path.choose_vlans")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_nni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC.should_deploy")
    @patch("napps.kytos.mef_eline.models.evc.EVC.remove_current_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC.sync")
    def test_deploy_error(self, *args):
        """Test if all methods is ignored when the should_deploy is false."""
        # pylint: disable=too-many-locals
        (
            sync_mock,
            remove_current_flows,
            should_deploy_mock,
            install_nni_flows,
            choose_vlans_mock,
            discover_new_paths,
            log_mock,
        ) = args

        install_nni_flows.side_effect = FlowModException
        should_deploy_mock.return_value = True
        uni_a = get_uni_mocked(
            interface_port=2,
            tag_value=82,
            switch_id="switch_uni_a",
            is_valid=True,
        )
        uni_z = get_uni_mocked(
            interface_port=3,
            tag_value=83,
            switch_id="switch_uni_z",
            is_valid=True,
        )

        primary_links = [
            get_link_mocked(
                endpoint_a_port=9, endpoint_b_port=10, metadata={"s_vlan": 5}
            ),
            get_link_mocked(
                endpoint_a_port=11, endpoint_b_port=12, metadata={"s_vlan": 6}
            ),
        ]

        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": uni_a,
            "uni_z": uni_z,
            "primary_links": primary_links,
            "queue_id": 5,
        }
        # Setup path to deploy
        path = Path()
        path.append(primary_links[0])
        path.append(primary_links[1])

        evc = EVC(**attributes)

        deployed = evc.deploy_to_path(path)

        self.assertEqual(discover_new_paths.call_count, 0)
        self.assertEqual(should_deploy_mock.call_count, 1)
        self.assertEqual(install_nni_flows.call_count, 1)
        self.assertEqual(choose_vlans_mock.call_count, 1)
        self.assertEqual(log_mock.error.call_count, 1)
        self.assertEqual(sync_mock.call_count, 0)
        self.assertEqual(remove_current_flows.call_count, 2)
        self.assertFalse(deployed)

    @patch("napps.kytos.mef_eline.models.evc.notify_link_available_tags")
    @patch("napps.kytos.mef_eline.models.evc.EVC.get_failover_path_candidates")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_nni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_uni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC.remove_path_flows")
    @patch("napps.kytos.mef_eline.models.EVC.sync")
    def test_setup_failover_path(self, *args):
        """Test setup_failover_path method."""
        (
            sync_mock,
            remove_path_flows_mock,
            install_uni_flows_mock,
            install_nni_flows_mock,
            get_failover_path_candidates_mock,
            notify_mock,
        ) = args

        # case1: early return intra switch
        evc1 = self.create_evc_intra_switch()

        self.assertFalse(evc1.setup_failover_path())
        self.assertEqual(sync_mock.call_count, 0)

        # case2: early return not eligible for path failover
        evc2 = self.create_evc_inter_switch()
        evc2.is_eligible_for_failover_path = MagicMock(return_value=False)

        self.assertFalse(evc2.setup_failover_path())
        self.assertEqual(sync_mock.call_count, 0)

        # case3: success failover_path setup
        evc2.is_eligible_for_failover_path = MagicMock(return_value=True)
        evc2.failover_path = ["link1", "link2"]
        path_mock = MagicMock()
        path_mock.__iter__.return_value = ["link3"]
        get_failover_path_candidates_mock.return_value = [None, path_mock]

        self.assertTrue(evc2.setup_failover_path())
        remove_path_flows_mock.assert_called_with(["link1", "link2"])
        path_mock.choose_vlans.assert_called()
        notify_mock.assert_called()
        install_nni_flows_mock.assert_called_with(path_mock)
        install_uni_flows_mock.assert_called_with(path_mock, skip_in=True)
        self.assertEqual(evc2.failover_path, path_mock)
        self.assertEqual(sync_mock.call_count, 1)

        # case 4: failed to setup failover_path - No Tag available
        evc2.failover_path = []
        path_mock.choose_vlans.side_effect = KytosNoTagAvailableError("error")
        sync_mock.call_count = 0

        self.assertFalse(evc2.setup_failover_path())
        self.assertEqual(list(evc2.failover_path), [])
        self.assertEqual(sync_mock.call_count, 1)

        # case 5: failed to setup failover_path - FlowMod exception
        evc2.failover_path = []
        path_mock.choose_vlans.side_effect = None
        install_nni_flows_mock.side_effect = FlowModException("error")
        sync_mock.call_count = 0

        self.assertFalse(evc2.setup_failover_path())
        self.assertEqual(list(evc2.failover_path), [])
        self.assertEqual(sync_mock.call_count, 1)
        remove_path_flows_mock.assert_called_with(path_mock)

    @patch("napps.kytos.mef_eline.models.evc.EVC.deploy_to_path")
    @patch("napps.kytos.mef_eline.models.evc.EVC.discover_new_paths")
    def test_deploy_to_backup_path1(
        self, discover_new_paths_mocked, deploy_to_path_mocked
    ):
        """Test deployment when dynamic_backup_path is False in same switch"""
        uni_a = get_uni_mocked(interface_port=2, tag_value=82, is_valid=True)
        uni_z = get_uni_mocked(interface_port=3, tag_value=83, is_valid=True)

        switch = Mock(spec=Switch)
        uni_a.interface.switch = switch
        uni_z.interface.switch = switch

        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": uni_a,
            "uni_z": uni_z,
            "enabled": True,
            "dynamic_backup_path": False,
        }

        evc = EVC(**attributes)
        discover_new_paths_mocked.return_value = []
        deploy_to_path_mocked.return_value = True

        deployed = evc.deploy_to_backup_path()

        deploy_to_path_mocked.assert_called_once_with()
        self.assertEqual(deployed, True)

    @patch("requests.post")
    @patch("napps.kytos.mef_eline.controllers.ELineController.upsert_evc")
    @patch("napps.kytos.mef_eline.models.evc.log")
    @patch("napps.kytos.mef_eline.models.path.Path.choose_vlans")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_nni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC._install_uni_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVC.activate")
    @patch("napps.kytos.mef_eline.models.evc.EVC.should_deploy")
    @patch("napps.kytos.mef_eline.models.evc.EVC.discover_new_paths")
    def test_deploy_without_path_case1(self, *args):
        """Test if not path is found a dynamic path is used."""
        # pylint: disable=too-many-locals
        (
            discover_new_paths_mocked,
            should_deploy_mock,
            activate_mock,
            install_uni_flows_mock,
            install_nni_flows,
            chose_vlans_mock,
            log_mock,
            _,
            requests_mock,
        ) = args

        response = MagicMock()
        response.status_code = 201
        requests_mock.return_value = response

        should_deploy_mock.return_value = False
        uni_a = get_uni_mocked(
            interface_port=2,
            tag_value=82,
            switch_id="switch_uni_a",
            is_valid=True,
        )
        uni_z = get_uni_mocked(
            interface_port=3,
            tag_value=83,
            switch_id="switch_uni_z",
            is_valid=True,
        )

        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": uni_a,
            "uni_z": uni_z,
            "enabled": True,
            "dynamic_backup_path": False,
        }

        dynamic_backup_path = Path(
            [
                get_link_mocked(
                    endpoint_a_port=9,
                    endpoint_b_port=10,
                    metadata={"s_vlan": 5},
                ),
                get_link_mocked(
                    endpoint_a_port=11,
                    endpoint_b_port=12,
                    metadata={"s_vlan": 6},
                ),
            ]
        )

        evc = EVC(**attributes)
        discover_new_paths_mocked.return_value = [dynamic_backup_path]

        deployed = evc.deploy_to_path()

        self.assertEqual(should_deploy_mock.call_count, 1)
        self.assertEqual(discover_new_paths_mocked.call_count, 1)
        self.assertEqual(activate_mock.call_count, 1)
        self.assertEqual(install_uni_flows_mock.call_count, 1)
        self.assertEqual(install_nni_flows.call_count, 1)
        self.assertEqual(chose_vlans_mock.call_count, 1)
        log_mock.info.assert_called_with(f"{evc} was deployed.")
        self.assertTrue(deployed)

    @patch("napps.kytos.mef_eline.models.evc.EVCDeploy.deploy_to_primary_path")
    @patch("napps.kytos.mef_eline.models.evc.EVCDeploy.deploy_to_backup_path")
    @patch("napps.kytos.mef_eline.models.evc.emit_event")
    def test_deploy(self, *args):
        """Test method deploy"""
        (emit_event_mock, deploy_primary_mock, deploy_backup_mock) = args

        # case 1: deploy to primary
        self.evc_deploy.archived = False
        deploy_primary_mock.return_value = True
        self.assertTrue(self.evc_deploy.deploy())
        self.assertEqual(emit_event_mock.call_count, 1)

        # case 2: deploy to backup
        deploy_primary_mock.return_value = False
        deploy_backup_mock.return_value = True
        self.assertTrue(self.evc_deploy.deploy())
        self.assertEqual(emit_event_mock.call_count, 2)

        # case 3: fail to deploy to primary and backup
        deploy_backup_mock.return_value = False
        self.assertFalse(self.evc_deploy.deploy())
        self.assertEqual(emit_event_mock.call_count, 2)

        # case 4: archived
        self.evc_deploy.archived = True
        self.assertFalse(self.evc_deploy.deploy())
        self.assertEqual(emit_event_mock.call_count, 2)

    @patch("napps.kytos.mef_eline.models.evc.EVCDeploy.remove_current_flows")
    @patch("napps.kytos.mef_eline.models.evc.EVCDeploy.sync")
    @patch("napps.kytos.mef_eline.models.evc.emit_event")
    def test_remove(self, *args):
        """Test method remove"""
        (emit_event_mock, sync_mock, remove_flows_mock) = args
        self.evc_deploy.remove()
        remove_flows_mock.assert_called()
        sync_mock.assert_called()
        emit_event_mock.assert_called()
        self.assertFalse(self.evc_deploy.is_enabled())

    @patch("napps.kytos.mef_eline.controllers.ELineController.upsert_evc")
    @patch("napps.kytos.mef_eline.models.evc.notify_link_available_tags")
    @patch("napps.kytos.mef_eline.models.evc.EVC._send_flow_mods")
    @patch("napps.kytos.mef_eline.models.evc.log.error")
    def test_remove_current_flows(self, *args):
        """Test remove current flows."""
        # pylint: disable=too-many-locals
        (log_error_mock, send_flow_mods_mocked, notify_mock, _) = args
        uni_a = get_uni_mocked(
            interface_port=2,
            tag_value=82,
            switch_id="switch_uni_a",
            is_valid=True,
        )
        uni_z = get_uni_mocked(
            interface_port=3,
            tag_value=83,
            switch_id="switch_uni_z",
            is_valid=True,
        )

        switch_a = Switch("00:00:00:00:00:01")
        switch_b = Switch("00:00:00:00:00:02")
        switch_c = Switch("00:00:00:00:00:03")

        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": uni_a,
            "uni_z": uni_z,
            "active": True,
            "enabled": True,
            "primary_links": [
                get_link_mocked(
                    switch_a=switch_a,
                    switch_b=switch_b,
                    endpoint_a_port=9,
                    endpoint_b_port=10,
                    metadata={"s_vlan": 5},
                ),
                get_link_mocked(
                    switch_a=switch_b,
                    switch_b=switch_c,
                    endpoint_a_port=11,
                    endpoint_b_port=12,
                    metadata={"s_vlan": 6},
                ),
            ],
        }

        evc = EVC(**attributes)

        evc.current_path = evc.primary_links
        evc.remove_current_flows()
        notify_mock.assert_called()

        self.assertEqual(send_flow_mods_mocked.call_count, 5)
        self.assertFalse(evc.is_active())
        flows = [
            {"cookie": evc.get_cookie(), "cookie_mask": 18446744073709551615}
        ]
        switch_1 = evc.primary_links[0].endpoint_a.switch
        switch_2 = evc.primary_links[0].endpoint_b.switch
        send_flow_mods_mocked.assert_any_call(switch_1.id, flows, 'delete',
                                              force=True)
        send_flow_mods_mocked.assert_any_call(switch_2.id, flows, 'delete',
                                              force=True)

        send_flow_mods_mocked.side_effect = FlowModException("error")
        evc.remove_current_flows()
        log_error_mock.assert_called()

    @patch("napps.kytos.mef_eline.controllers.ELineController.upsert_evc")
    @patch("napps.kytos.mef_eline.models.evc.notify_link_available_tags")
    @patch("napps.kytos.mef_eline.models.evc.EVC._send_flow_mods")
    @patch("napps.kytos.mef_eline.models.evc.log.error")
    def test_remove_failover_flows_exclude_uni_switches(self, *args):
        """Test remove failover flows excluding UNI switches."""
        # pylint: disable=too-many-locals
        (log_error_mock, send_flow_mods_mocked,
         notify_mock, mock_upsert) = args
        uni_a = get_uni_mocked(
            interface_port=2,
            tag_value=82,
            switch_id="00:00:00:00:00:00:00:01",
            is_valid=True,
        )
        uni_z = get_uni_mocked(
            interface_port=3,
            tag_value=83,
            switch_id="00:00:00:00:00:00:00:03",
            is_valid=True,
        )

        switch_a = Switch("00:00:00:00:00:00:00:01")
        switch_b = Switch("00:00:00:00:00:00:00:02")
        switch_c = Switch("00:00:00:00:00:00:00:03")

        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": uni_a,
            "uni_z": uni_z,
            "active": True,
            "enabled": True,
            "failover_path": [
                get_link_mocked(
                    switch_a=switch_a,
                    switch_b=switch_b,
                    endpoint_a_port=9,
                    endpoint_b_port=10,
                    metadata={"s_vlan": 5},
                ),
                get_link_mocked(
                    switch_a=switch_b,
                    switch_b=switch_c,
                    endpoint_a_port=11,
                    endpoint_b_port=12,
                    metadata={"s_vlan": 6},
                ),
            ],
        }

        evc = EVC(**attributes)
        evc.remove_failover_flows(exclude_uni_switches=True, sync=True)
        notify_mock.assert_called()

        assert send_flow_mods_mocked.call_count == 1
        flows = [
            {"cookie": evc.get_cookie(),
             "cookie_mask": int(0xffffffffffffffff)}
        ]
        send_flow_mods_mocked.assert_any_call(switch_b.id, flows, 'delete',
                                              force=True)
        assert mock_upsert.call_count == 1

        send_flow_mods_mocked.side_effect = FlowModException("error")
        evc.remove_current_flows()
        log_error_mock.assert_called()

    @patch("napps.kytos.mef_eline.controllers.ELineController.upsert_evc")
    @patch("napps.kytos.mef_eline.models.evc.notify_link_available_tags")
    @patch("napps.kytos.mef_eline.models.evc.EVC._send_flow_mods")
    def test_remove_failover_flows_include_all(self, *args):
        """Test remove failover flows including UNI switches."""
        # pylint: disable=too-many-locals
        (send_flow_mods_mocked,
         notify_mock, mock_upsert) = args
        uni_a = get_uni_mocked(
            interface_port=2,
            tag_value=82,
            switch_id="00:00:00:00:00:00:00:01",
            is_valid=True,
        )
        uni_z = get_uni_mocked(
            interface_port=3,
            tag_value=83,
            switch_id="00:00:00:00:00:00:00:03",
            is_valid=True,
        )

        switch_a = Switch("00:00:00:00:00:00:00:01")
        switch_b = Switch("00:00:00:00:00:00:00:02")
        switch_c = Switch("00:00:00:00:00:00:00:03")

        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "uni_a": uni_a,
            "uni_z": uni_z,
            "active": True,
            "enabled": True,
            "failover_path": [
                get_link_mocked(
                    switch_a=switch_a,
                    switch_b=switch_b,
                    endpoint_a_port=9,
                    endpoint_b_port=10,
                    metadata={"s_vlan": 5},
                ),
                get_link_mocked(
                    switch_a=switch_b,
                    switch_b=switch_c,
                    endpoint_a_port=11,
                    endpoint_b_port=12,
                    metadata={"s_vlan": 6},
                ),
            ],
        }

        evc = EVC(**attributes)
        evc.remove_failover_flows(exclude_uni_switches=False, sync=True)
        notify_mock.assert_called()

        assert send_flow_mods_mocked.call_count == 3
        flows = [
            {"cookie": evc.get_cookie(),
             "cookie_mask": int(0xffffffffffffffff)}
        ]
        send_flow_mods_mocked.assert_any_call(switch_a.id, flows, 'delete',
                                              force=True)
        send_flow_mods_mocked.assert_any_call(switch_b.id, flows, 'delete',
                                              force=True)
        send_flow_mods_mocked.assert_any_call(switch_c.id, flows, 'delete',
                                              force=True)
        assert mock_upsert.call_count == 1

    @staticmethod
    def create_evc_intra_switch():
        """Create intra-switch EVC."""
        switch = Mock(spec=Switch)
        switch.dpid = 2
        switch.id = switch.dpid
        interface_a = Interface("eth0", 1, switch)
        interface_z = Interface("eth1", 3, switch)
        uni_a = get_uni_mocked(
            tag_value=82,
            is_valid=True,
        )
        uni_z = get_uni_mocked(
            tag_value=84,
            is_valid=True,
        )
        uni_a.interface = interface_a
        uni_z.interface = interface_z
        attributes = {
            "controller": get_controller_mock(),
            "name": "custom_name",
            "id": "1",
            "uni_a": uni_a,
            "uni_z": uni_z,
            "enabled": True,
        }
        return EVC(**attributes)

    # pylint: disable=too-many-branches
    @staticmethod
    @patch("napps.kytos.mef_eline.models.evc.EVC._send_flow_mods")
    def test_deploy_direct_uni_flows(send_flow_mods_mock):
        """Test _install_direct_uni_flows"""
        evc = TestEVC.create_evc_intra_switch()
        expected_dpid = evc.uni_a.interface.switch.id

        for uni_a in [100, "4096/4096", 0, None]:
            for uni_z in [100, "4096/4096", 0, None]:
                expected_flows = [
                    {
                        "match": {"in_port": 1},
                        "cookie": evc.get_cookie(),
                        "actions": [
                            {"action_type": "output", "port": 3},
                        ],
                        "priority": EPL_SB_PRIORITY
                    },
                    {
                        "match": {"in_port": 3},
                        "cookie": evc.get_cookie(),
                        "actions": [
                            {"action_type": "output", "port": 1},
                        ],
                        "priority": EPL_SB_PRIORITY
                    }
                ]
                evc.uni_a = get_uni_mocked(tag_value=uni_a, is_valid=True)
                evc.uni_a.interface.port_number = 1
                evc.uni_z = get_uni_mocked(tag_value=uni_z, is_valid=True)
                evc.uni_z.interface.port_number = 3
                expected_dpid = evc.uni_a.interface.switch.id
                evc._install_direct_uni_flows()
                if uni_a is not None:
                    expected_flows[0]["match"]["dl_vlan"] = uni_a
                    expected_flows[0]["priority"] = EVPL_SB_PRIORITY
                if uni_z is not None:
                    expected_flows[1]["match"]["dl_vlan"] = uni_z
                    expected_flows[1]["priority"] = EVPL_SB_PRIORITY

                if uni_z not in {None, "4096/4096", 0}:
                    expected_flows[0]["actions"].insert(
                        0, {"action_type": "set_vlan", "vlan_id": uni_z}
                    )
                if uni_a not in {None, "4096/4096", 0}:
                    expected_flows[1]["actions"].insert(
                            0, {"action_type": "set_vlan", "vlan_id": uni_a}
                        )
                    if not uni_z:
                        expected_flows[1]["actions"].insert(
                            0, {"action_type": "push_vlan", "tag_type": "c"}
                        )
                    if uni_z == 0:
                        new_action = {"action_type": "pop_vlan"}
                        expected_flows[0]["actions"].insert(0, new_action)
                elif uni_a == "4096/4096":
                    if uni_z == 0:
                        new_action = {"action_type": "pop_vlan"}
                        expected_flows[0]["actions"].insert(0, new_action)
                elif uni_a == 0:
                    if uni_z not in {None, "4096/4096", 0}:
                        expected_flows[0]["actions"].insert(
                            0, {"action_type": "push_vlan", "tag_type": "c"}
                        )
                    if uni_z:
                        new_action = {"action_type": "pop_vlan"}
                        expected_flows[1]["actions"].insert(0, new_action)
                elif uni_a is None:
                    if uni_z not in {None, "4096/4096", 0}:
                        expected_flows[0]["actions"].insert(
                            0, {"action_type": "push_vlan", "tag_type": "c"}
                        )
                send_flow_mods_mock.assert_called_with(
                    expected_dpid, expected_flows
                )

    @staticmethod
    @patch("napps.kytos.mef_eline.models.evc.EVC._send_flow_mods")
    def test_deploy_direct_uni_flows_untagged_any(send_flow_mods_mock):
        """Test _install_direct_uni_flows with untagged and any."""
        evc = TestEVC.create_evc_intra_switch()

        evc.uni_a = get_uni_mocked(tag_value="untagged", is_valid=True)
        evc.uni_z = get_uni_mocked(tag_value="untagged", is_valid=True)
        expected_dpid = evc.uni_a.interface.switch.id
        expected_flows = [
            {
                "match": {"in_port": 1, "dl_vlan": 0},
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "output", "port": 1},
                ],
                "priority": EVPL_SB_PRIORITY
            },
            {
                "match": {"in_port": 1, "dl_vlan": 0},
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "output", "port": 1},
                ],
                "priority": EVPL_SB_PRIORITY
            }
        ]
        evc._install_direct_uni_flows()
        send_flow_mods_mock.assert_called_with(
            expected_dpid, expected_flows
        )

        evc.uni_a = get_uni_mocked(tag_value="any", is_valid=True)
        evc.uni_z = get_uni_mocked(tag_value="any", is_valid=True)
        expected_dpid = evc.uni_a.interface.switch.id
        expected_flows = [
            {
                "match": {"in_port": 1, "dl_vlan": "4096/4096"},
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "output", "port": 1},
                ],
                "priority": EVPL_SB_PRIORITY
            },
            {
                "match": {"in_port": 1, "dl_vlan": "4096/4096"},
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "output", "port": 1},
                ],
                "priority": EVPL_SB_PRIORITY
            }
        ]
        evc._install_direct_uni_flows()
        send_flow_mods_mock.assert_called_with(
            expected_dpid, expected_flows
        )

        evc.uni_a = get_uni_mocked(tag_value="any", is_valid=True)
        evc.uni_z = get_uni_mocked(tag_value=100, is_valid=True)
        expected_dpid = evc.uni_a.interface.switch.id
        expected_flows = [
            {
                "match": {"in_port": 1, "dl_vlan": "4096/4096"},
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "set_vlan", "vlan_id": 100},
                    {"action_type": "output", "port": 1},
                ],
                "priority": EVPL_SB_PRIORITY
            },
            {
                "match": {"in_port": 1, "dl_vlan": 100},
                "cookie": evc.get_cookie(),
                "actions": [
                    {"action_type": "output", "port": 1},
                ],
                "priority": EVPL_SB_PRIORITY
            }
        ]
        evc._install_direct_uni_flows()
        send_flow_mods_mock.assert_called_with(
            expected_dpid, expected_flows
        )

    def test_is_affected_by_link(self):
        """Test is_affected_by_link method"""
        self.evc_deploy.current_path = Path(['a', 'b', 'c'])
        self.assertTrue(self.evc_deploy.is_affected_by_link('b'))

    def test_is_backup_path_affected_by_link(self):
        """Test is_backup_path_affected_by_link method"""
        self.evc_deploy.backup_path = Path(['a', 'b', 'c'])
        self.assertFalse(self.evc_deploy.is_backup_path_affected_by_link('d'))

    def test_is_primary_path_affected_by_link(self):
        """Test is_primary_path_affected_by_link method"""
        self.evc_deploy.primary_path = Path(['a', 'b', 'c'])
        self.assertTrue(self.evc_deploy.is_primary_path_affected_by_link('c'))

    def test_is_using_primary_path(self):
        """Test is_using_primary_path method"""
        self.evc_deploy.primary_path = Path(['a', 'b', 'c'])
        self.evc_deploy.current_path = Path(['e', 'f', 'g'])
        self.assertFalse(self.evc_deploy.is_using_primary_path())

    def test_is_using_backup_path(self):
        """Test is_using_backup_path method"""
        self.evc_deploy.backup_path = Path(['a', 'b', 'c'])
        self.evc_deploy.current_path = Path(['e', 'f', 'g'])
        self.assertFalse(self.evc_deploy.is_using_backup_path())

    @patch('napps.kytos.mef_eline.models.path.Path.status')
    def test_is_using_dynamic_path(self, mock_status):
        """Test is_using_dynamic_path method"""
        mock_status.return_value = False
        self.evc_deploy.backup_path = Path([])
        self.evc_deploy.primary_path = Path([])
        self.assertFalse(self.evc_deploy.is_using_dynamic_path())

    def test_get_path_status(self):
        """Test get_path_status method"""
        path = Path([])
        self.assertEqual(
            self.evc_deploy.get_path_status(path),
            EntityStatus.DISABLED
        )
        path = Path([
            get_link_mocked(status=EntityStatus.UP),
            get_link_mocked(status=EntityStatus.DOWN)
        ])
        self.assertEqual(
            self.evc_deploy.get_path_status(path),
            EntityStatus.DOWN
        )
        path = Path([
            get_link_mocked(status=EntityStatus.UP),
            get_link_mocked(status=EntityStatus.UP)
        ])
        self.assertEqual(
            self.evc_deploy.get_path_status(path),
            EntityStatus.UP
        )

    @patch("napps.kytos.mef_eline.models.evc.EVC._prepare_uni_flows")
    def test_get_failover_flows(self, prepare_uni_flows_mock):
        """Test get_failover_flows method."""
        evc = self.create_evc_inter_switch()
        evc.failover_path = Path([])
        self.assertEqual(evc.get_failover_flows(), {})

        path = MagicMock()
        evc.failover_path = path
        evc.get_failover_flows()
        prepare_uni_flows_mock.assert_called_with(path, skip_out=True)

    @patch("napps.kytos.mef_eline.models.evc.log")
    @patch("napps.kytos.mef_eline.models.evc.EVC._send_flow_mods")
    @patch("napps.kytos.mef_eline.models.path.Path.make_vlans_available")
    def test_remove_path_flows(self, *args):
        """Test remove path flows."""
        (
            make_vlans_available_mock,
            send_flow_mods_mock,
            log_mock,
        ) = args

        evc = self.create_evc_inter_switch()

        evc.remove_path_flows()
        make_vlans_available_mock.assert_not_called()

        expected_flows_1 = [
            {
                'cookie': 12249790986447749121,
                'cookie_mask': 18446744073709551615,
                'match': {'in_port': 9, 'dl_vlan':  5}
            },
        ]
        expected_flows_2 = [
            {
                'cookie': 12249790986447749121,
                'cookie_mask': 18446744073709551615,
                'match': {'in_port': 10, 'dl_vlan': 5}
            },
            {
                'cookie': 12249790986447749121,
                'cookie_mask': 18446744073709551615,
                'match': {'in_port': 11, 'dl_vlan': 6}
            },
        ]
        expected_flows_3 = [
            {
                'cookie': 12249790986447749121,
                'cookie_mask': 18446744073709551615,
                'match': {'in_port': 12, 'dl_vlan': 6}
            },
        ]

        evc.remove_path_flows(evc.primary_links)
        send_flow_mods_mock.assert_has_calls([
            call(1, expected_flows_1, 'delete', force=True),
            call(2, expected_flows_2, 'delete', force=True),
            call(3, expected_flows_3, 'delete', force=True),
        ], any_order=True)

        send_flow_mods_mock.side_effect = FlowModException("err")
        evc.remove_path_flows(evc.primary_links)
        log_mock.error.assert_called()

    @patch("requests.put")
    def test_run_sdntrace(self, put_mock):
        """Test run_sdntrace method."""
        evc = self.create_evc_inter_switch()
        response = MagicMock()
        response.status_code = 200
        response.json.return_value = {"result": "ok"}
        put_mock.return_value = response

        expected_endpoint = f"{SDN_TRACE_CP_URL}/trace"
        expected_payload = {
            'trace': {
                'switch': {'dpid': 1, 'in_port': 2},
                'eth': {'dl_type': 0x8100, 'dl_vlan': 82}
            }
        }

        result = evc.run_sdntrace(evc.uni_a)
        put_mock.assert_called_with(expected_endpoint, json=expected_payload)
        self.assertEqual(result, "ok")

        response.status_code = 400
        result = evc.run_sdntrace(evc.uni_a)
        self.assertEqual(result, [])

    @patch("requests.put")
    def test_run_bulk_sdntraces(self, put_mock):
        """Test run_bulk_sdntraces method for bulh request."""
        evc = self.create_evc_inter_switch()
        response = MagicMock()
        response.status_code = 200
        response.json.return_value = {"result": "ok"}
        put_mock.return_value = response

        expected_endpoint = f"{SDN_TRACE_CP_URL}/traces"
        expected_payload = [
                            {
                                'trace': {
                                    'switch': {'dpid': 1, 'in_port': 2},
                                    'eth': {'dl_type': 0x8100, 'dl_vlan': 82}
                                }
                            }
                        ]
        result = EVCDeploy.run_bulk_sdntraces([evc.uni_a])
        put_mock.assert_called_with(
                                    expected_endpoint,
                                    json=expected_payload,
                                    timeout=30
                                )
        self.assertEqual(result['result'], "ok")

        response.status_code = 400
        result = EVCDeploy.run_bulk_sdntraces([evc.uni_a])
        self.assertEqual(result, {"result": []})

    @patch("napps.kytos.mef_eline.models.evc.log")
    @patch("napps.kytos.mef_eline.models.evc.EVCDeploy.run_bulk_sdntraces")
    def test_check_list_traces(self, run_bulk_sdntraces_mock, _):
        """Test check_list_traces method."""
        evc = self.create_evc_inter_switch()

        for link in evc.primary_links:
            link.metadata['s_vlan'] = MagicMock(value=link.metadata['s_vlan'])
        evc.current_path = evc.primary_links

        trace_a = [
            {"dpid": 1, "port": 2, "time": "t1", "type": "start", "vlan": 82},
            {"dpid": 2, "port": 10, "time": "t2", "type": "trace", "vlan": 5},
            {"dpid": 3, "port": 12, "time": "t3", "type": "trace", "vlan": 6},
        ]
        trace_z = [
            {"dpid": 3, "port": 3, "time": "t1", "type": "start", "vlan": 83},
            {"dpid": 2, "port": 11, "time": "t2", "type": "trace", "vlan": 6},
            {"dpid": 1, "port": 9, "time": "t3", "type": "trace", "vlan": 5},
        ]

        run_bulk_sdntraces_mock.return_value = {
                                                "result": [trace_a, trace_z]
                                            }
        result = EVCDeploy.check_list_traces([evc])
        self.assertTrue(result[evc.id])

        # case2: fail incomplete trace from uni_a
        run_bulk_sdntraces_mock.return_value = {
                                                "result": [
                                                            trace_a[:2],
                                                            trace_z
                                                        ]
        }
        result = EVCDeploy.check_list_traces([evc])
        self.assertFalse(result[evc.id])

        # case3: fail incomplete trace from uni_z
        run_bulk_sdntraces_mock.return_value = {
                                                "result": [
                                                            trace_a,
                                                            trace_z[:2]
                                                        ]
        }
        result = EVCDeploy.check_list_traces([evc])
        self.assertFalse(result[evc.id])

        # case4: fail wrong vlan id in trace from uni_a
        trace_a[1]["vlan"] = 5
        trace_z[1]["vlan"] = 99
        run_bulk_sdntraces_mock.return_value = {
                                                "result": [trace_a, trace_z]
        }
        result = EVCDeploy.check_list_traces([evc])
        self.assertFalse(result[evc.id])

        # case5: fail wrong vlan id in trace from uni_z
        trace_a[1]["vlan"] = 99
        run_bulk_sdntraces_mock.return_value = {
                                                "result": [trace_a, trace_z]
        }
        result = EVCDeploy.check_list_traces([evc])
        self.assertFalse(result[evc.id])

        # case6: success when no output in traces
        trace_a[1]["vlan"] = 5
        trace_z[1]["vlan"] = 6
        result = EVCDeploy.check_list_traces([evc])
        self.assertTrue(result[evc.id])

        # case7: fail when output is None in trace_a or trace_b
        trace_a[-1]["out"] = None
        result = EVCDeploy.check_list_traces([evc])
        self.assertFalse(result[evc.id])
        trace_a[-1].pop("out", None)
        trace_z[-1]["out"] = None
        result = EVCDeploy.check_list_traces([evc])
        self.assertFalse(result[evc.id])

        # case8: success when the output is correct on both uni
        trace_a[-1]["out"] = {"port": 3, "vlan": 83}
        trace_z[-1]["out"] = {"port": 2, "vlan": 82}
        result = EVCDeploy.check_list_traces([evc])
        self.assertTrue(result[evc.id])

        # case9: fail if any output is incorrect
        trace_a[-1]["out"] = {"port": 3, "vlan": 99}
        trace_z[-1]["out"] = {"port": 2, "vlan": 82}
        result = EVCDeploy.check_list_traces([evc])
        self.assertFalse(result[evc.id])
        trace_a[-1]["out"] = {"port": 3, "vlan": 83}
        trace_z[-1]["out"] = {"port": 2, "vlan": 99}
        result = EVCDeploy.check_list_traces([evc])
        self.assertFalse(result[evc.id])

    @patch(
        "napps.kytos.mef_eline.models.path.DynamicPathManager"
        ".get_disjoint_paths"
    )
    def test_get_failover_path_vandidates(self, get_disjoint_paths_mock):
        """Test get_failover_path_candidates method"""
        self.evc_deploy.get_failover_path_candidates()
        get_disjoint_paths_mock.assert_called_once()

    def test_is_failover_path_affected_by_link(self):
        """Test is_failover_path_affected_by_link method"""
        link1 = get_link_mocked(endpoint_a_port=1, endpoint_b_port=2)
        link2 = get_link_mocked(endpoint_a_port=3, endpoint_b_port=4)
        link3 = get_link_mocked(endpoint_a_port=5, endpoint_b_port=6)
        self.evc_deploy.failover_path = Path([link1, link2])
        self.assertTrue(
            self.evc_deploy.is_failover_path_affected_by_link(link1)
        )
        self.assertFalse(
            self.evc_deploy.is_failover_path_affected_by_link(link3)
        )

    def test_is_eligible_for_failover_path(self):
        """Test is_eligible_for_failover_path method"""
        self.assertFalse(self.evc_deploy.is_eligible_for_failover_path())
        self.evc_deploy.dynamic_backup_path = True
        self.evc_deploy.primary_path = Path([])
        self.evc_deploy.backup_path = Path([])
        self.assertTrue(self.evc_deploy.is_eligible_for_failover_path())

    def test_get_value_from_uni_tag(self):
        """Test _get_value_from_uni_tag"""
        uni = get_uni_mocked(tag_value=None)
        value = EVC._get_value_from_uni_tag(uni)
        self.assertEqual(value, None)

        uni = get_uni_mocked(tag_value="any")
        value = EVC._get_value_from_uni_tag(uni)
        self.assertEqual(value, "4096/4096")

        uni = get_uni_mocked(tag_value="untagged")
        value = EVC._get_value_from_uni_tag(uni)
        self.assertEqual(value, 0)

        uni = get_uni_mocked(tag_value=100)
        value = EVC._get_value_from_uni_tag(uni)
        self.assertEqual(value, 100)