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How to use device_exists method in avocado

Best Python code snippet using avocado_python

test_interface.py

Source:test_interface.py

...95        if additional_expectation is None:96            additional_expectation = []97        if not bridge:98            bridge = 'br-int'99        def device_exists(dev, namespace=None):100            return dev == bridge101        vsctl_cmd = ['ovs-vsctl', '--', '--may-exist', 'add-port',102                     bridge, 'tap0', '--', 'set', 'Interface', 'tap0',103                     'type=internal', '--', 'set', 'Interface', 'tap0',104                     'external-ids:iface-id=port-1234', '--', 'set',105                     'Interface', 'tap0',106                     'external-ids:iface-status=active', '--', 'set',107                     'Interface', 'tap0',108                     'external-ids:attached-mac=aa:bb:cc:dd:ee:ff']109        with mock.patch.object(utils, 'execute') as execute:110            ovs = interface.OVSInterfaceDriver()111            self.device_exists.side_effect = device_exists112            ovs.plug('tap0',113                     'port-1234',114                     'aa:bb:cc:dd:ee:ff',115                     bridge=bridge,116                     namespace=namespace)117            execute.assert_called_once_with(*vsctl_cmd, run_as_root=True)118        expected = [mock.call(),119                    mock.call().device('tap0'),120                    mock.call().device().link.set_address('aa:bb:cc:dd:ee:ff')]121        expected.extend(additional_expectation)122        if namespace:123            expected.extend(124                [mock.call().ensure_namespace(namespace),125                 mock.call().ensure_namespace().add_device_to_namespace(126                     mock.ANY)])127        expected.extend([mock.call().device().link.set_up()])128        self.ip.assert_has_calls(expected)129    def test_unplug(self, bridge=None):130        if not bridge:131            bridge = 'br-int'132        with mock.patch('manila.network.linux.ovs_lib.OVSBridge') as ovs_br:133            ovs = interface.OVSInterfaceDriver()134            ovs.unplug('tap0')135            ovs_br.assert_has_calls([mock.call(bridge),136                                     mock.call().delete_port('tap0')])137class TestBridgeInterfaceDriver(TestBase):138    def test_get_device_name(self):139        br = interface.BridgeInterfaceDriver()140        device_name = br.get_device_name(FakePort)141        self.assertEqual('ns-abcdef01-12', device_name)142    def test_plug_no_ns(self):143        self._test_plug()144    def test_plug_with_ns(self):145        self._test_plug(namespace='01234567-1234-1234-99')146    def _test_plug(self, namespace=None, mtu=None):147        def device_exists(device, root_helper=None, namespace=None):148            return device.startswith('brq')149        root_veth = mock.Mock()150        ns_veth = mock.Mock()151        self.ip().add_veth = mock.Mock(return_value=(root_veth, ns_veth))152        self.device_exists.side_effect = device_exists153        br = interface.BridgeInterfaceDriver()154        mac_address = 'aa:bb:cc:dd:ee:ff'155        br.plug('ns-0',156                'port-1234',157                mac_address,158                namespace=namespace)159        ip_calls = [mock.call(),160                    mock.call().add_veth('tap0', 'ns-0', namespace2=namespace)]161        ns_veth.assert_has_calls([mock.call.link.set_address(mac_address)])...

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