Revert "Revert "make test: fix broken interfaces""

This reverts commit c8efa29b6f9a91381897b54f1147daf922ed7164.

Change-Id: I1d5c5773d5f86a63073e255336bd9de628e26179
Signed-off-by: Klement Sekera <ksekera@cisco.com>
diff --git a/test/vpp_bond_interface.py b/test/vpp_bond_interface.py
index 4bd7cb8..153f114 100644
--- a/test/vpp_bond_interface.py
+++ b/test/vpp_bond_interface.py
@@ -9,7 +9,7 @@
                  use_custom_mac=0, mac_address=''):
 
         """ Create VPP Bond interface """
-        self._test = test
+        super(VppBondInterface, self).__init__(test)
         self.mode = mode
         self.lb = lb
         self.use_custom_mac = use_custom_mac
@@ -20,8 +20,7 @@
                                        self.lb,
                                        self.use_custom_mac,
                                        self.mac_address)
-        self._sw_if_index = r.sw_if_index
-        super(VppBondInterface, self).__init__(self._test)
+        self.set_sw_if_index(r.sw_if_index)
 
     def remove_vpp_config(self):
         self.test.vapi.bond_delete(self.sw_if_index)