1 files changed, 26 insertions, 4 deletions
diff --git a/test/vpp_lo_interface.py b/test/vpp_lo_interface.py
index 19ee1523d55..9493a70019d 100644
--- a/test/vpp_lo_interface.py
+++ b/test/vpp_lo_interface.py
@@ -1,13 +1,35 @@
-
+from vpp_object import VppObject
 from vpp_interface import VppInterface
 
 
-class VppLoInterface(VppInterface):
+class VppLoInterface(VppInterface, VppObject):
     """VPP loopback interface."""
 
     def __init__(self, test, lo_index):
         """ Create VPP loopback interface """
-        r = test.vapi.create_loopback()
-        self._sw_if_index = r.sw_if_index
+        self._test = test
+        self.add_vpp_config()
         super(VppLoInterface, self).__init__(test)
         self._lo_index = lo_index
+
+    def add_vpp_config(self):
+        r = self.test.vapi.create_loopback()
+        self._sw_if_index = r.sw_if_index
+
+    def remove_vpp_config(self):
+        self.test.vapi.delete_loopback(self.sw_if_index)
+
+    def query_vpp_config(self):
+        dump = self.vapi.sw_interface_dump()
+        return self.is_interface_config_in_dump(dump)
+
+    def is_interface_config_in_dump(self, dump):
+        for i in dump:
+            if i.interface_name.rstrip(' \t\r\n\0') == self.name and \
+               i.sw_if_index == self.sw_if_index:
+                return True
+        else:
+            return False
+
+    def object_id(self):
+        return "loopback-%d" % self._sw_if_index