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-rw-r--r--test/test_ip4.py64
1 files changed, 64 insertions, 0 deletions
diff --git a/test/test_ip4.py b/test/test_ip4.py
index 7300679ff0d..705b15154e8 100644
--- a/test/test_ip4.py
+++ b/test/test_ip4.py
@@ -20,6 +20,7 @@ from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpMRoute, \
from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
from vpp_papi import VppEnum
from vpp_neighbor import VppNeighbor
+from vpp_lo_interface import VppLoInterface
NUM_PKTS = 67
@@ -2091,5 +2092,68 @@ class TestIPReplace(VppTestCase):
self.assertEqual(len(t.mdump()), 1)
+class TestIPCover(VppTestCase):
+ """ IPv4 Table Cover """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPCover, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPCover, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPCover, self).setUp()
+
+ self.create_pg_interfaces(range(4))
+
+ table_id = 1
+ self.tables = []
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+ i.generate_remote_hosts(2)
+ self.tables.append(VppIpTable(self, table_id).add_vpp_config())
+ table_id += 1
+
+ def tearDown(self):
+ super(TestIPCover, self).tearDown()
+ for i in self.pg_interfaces:
+ i.admin_down()
+ i.unconfig_ip4()
+
+ def test_cover(self):
+ """ IP Table Cover """
+
+ # add a loop back with a /32 prefix
+ lo = VppLoInterface(self)
+ lo.admin_up()
+ a = VppIpInterfaceAddress(self, lo, "127.0.0.1", 32).add_vpp_config()
+
+ # add a neighbour that matches the loopback's /32
+ nbr = VppNeighbor(self,
+ lo.sw_if_index,
+ lo.remote_mac,
+ "127.0.0.1").add_vpp_config()
+
+ # add the default route which will be the cover for /32
+ r = VppIpRoute(self, "0.0.0.0", 0,
+ [VppRoutePath("127.0.0.1",
+ lo.sw_if_index)],
+ register=False).add_vpp_config()
+
+ # add/remove/add a longer mask cover
+ r = VppIpRoute(self, "127.0.0.0", 8,
+ [VppRoutePath("127.0.0.1",
+ lo.sw_if_index)]).add_vpp_config()
+ r.remove_vpp_config()
+ r.add_vpp_config()
+
+ # remove the default route
+ r.remove_vpp_config()
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)