1 files changed, 35 insertions, 0 deletions
diff --git a/test/vpp_lo_interface.py b/test/vpp_lo_interface.py
new file mode 100644
index 00000000..963123f6
--- /dev/null
+++ b/test/vpp_lo_interface.py
@@ -0,0 +1,35 @@
+from vpp_object import VppObject
+from vpp_interface import VppInterface
+
+
+class VppLoInterface(VppInterface, VppObject):
+    """VPP loopback interface."""
+
+    def __init__(self, test, lo_index):
+        """ Create VPP loopback interface """
+        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.test.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