def _setUp(self):
     ip_wrapper = ip_lib.IPWrapper()
     self.ip_dev = common_base.create_resource(
         self.prefix,
         ip_wrapper.add_macvtap,
         self.src_dev, mode=self.mode)
     self.addCleanup(self.destroy)

    def setUp(self):
        super(LinuxBridgeFixture, self).setUp()

        self.namespace = self.useFixture(NamespaceFixture()).name
        self.bridge = common_base.create_resource(BR_PREFIX, bridge_lib.BridgeDevice.addbr, namespace=self.namespace)
        self.addCleanup(self.bridge.delbr)
        self.bridge.link.set_up()
        self.addCleanup(self.bridge.link.set_down)

 def _setUp(self):
     self.namespace = self.useFixture(NamespaceFixture()).name
     self.bridge = common_base.create_resource(
         self.prefix,
         bridge_lib.BridgeDevice.addbr,
         namespace=self.namespace)
     self.addCleanup(self.bridge.delbr)
     self.bridge.link.set_up()
     self.addCleanup(self.bridge.link.set_down)

    def setUp(self):
        super(VethFixture, self).setUp()
        ip_wrapper = ip_lib.IPWrapper()

        def _create_veth(name0):
            name1 = name0.replace(VETH0_PREFIX, VETH1_PREFIX)
            return ip_wrapper.add_veth(name0, name1)

        self.ports = common_base.create_resource(VETH0_PREFIX, _create_veth)
        self.addCleanup(self.destroy)

 def _create_bridge(self):
     if self.prefix_is_full_name:
         return bridge_lib.BridgeDevice.addbr(
             name=self.prefix,
             namespace=self.namespace
         )
     else:
         return common_base.create_resource(
             self.prefix,
             bridge_lib.BridgeDevice.addbr,
             namespace=self.namespace)