pg: add support to delete pg interface

Type: improvement

Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: I3102fded415c644673fb79a0fdb7a7448ce20f26

test/test_pg.py

@@ -38,6 +38,7 @@ class TestPgTun(VppTestCase):
         for i in self.pg_interfaces:
             i.unconfig_ip4()
             i.admin_down()
+            i.remove_vpp_config()
         super(TestPgTun, self).tearDown()
 
     def test_pg_tun(self):

test/vpp_pg_interface.py

@@ -147,6 +147,11 @@ class VppPGInterface(VppInterface):
         )
         self._cap_name = "pcap%u-sw_if_index-%s" % (self.pg_index, self.sw_if_index)
 
+    def remove_vpp_config(self):
+        """delete Pg interface"""
+        self.disable_capture()
+        self.test.vapi.pg_delete_interface(sw_if_index=self.sw_if_index)
+
     def link_pcap_file(self, path, direction, counter):
         if not config.keep_pcaps:
             return