vhost: add vhost interface add/delete/dump API test cases to make test

The vhost binary APIs for add/delete/dump interface were available long ago.
But no unit tests were ever added in make test. This patch is to retrofit
the missing unit tests.

Change-Id: I489521b5ae359a1168ac5880a1f13a5f7e93ce4a
Signed-off-by: Steven <sluong@cisco.com>

1 files changed, 74 insertions, 0 deletions

diff --git a/test/test_vhost.py b/test/test_vhost.py
new file mode 100644
index 00000000000..9ee92a91b2b
--- /dev/null
+++ b/test/test_vhost.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python
+
+import unittest
+
+from framework import VppTestCase, VppTestRunner
+
+from vpp_vhost_interface import VppVhostInterface
+
+
+class TesVhostInterface(VppTestCase):
+    """Vhost User Test Case
+
+    """
+
+    def test_vhost(self):
+        """ Vhost User add/delete interface test """
+        self.logger.info("Vhost User add interfaces")
+
+        # create interface 1 (VirtualEthernet0/0/0)
+        vhost_if1 = VppVhostInterface(self, sock_filename='/tmp/sock1')
+        vhost_if1.add_vpp_config()
+        vhost_if1.admin_up()
+
+        # create interface 2 (VirtualEthernet0/0/1)
+        vhost_if2 = VppVhostInterface(self, sock_filename='/tmp/sock2')
+        vhost_if2.add_vpp_config()
+        vhost_if2.admin_up()
+
+        # verify both interfaces in the show
+        ifs = self.vapi.cli("show interface")
+        self.assertNotEqual(ifs.find('VirtualEthernet0/0/0'), -1)
+        self.assertNotEqual(ifs.find('VirtualEthernet0/0/1'), -1)
+
+        # verify they are in the dump also
+        if_dump = self.vapi.sw_interface_vhost_user_dump()
+        self.assertTrue(vhost_if1.is_interface_config_in_dump(if_dump))
+        self.assertTrue(vhost_if2.is_interface_config_in_dump(if_dump))
+
+        # delete VirtualEthernet0/0/1
+        self.logger.info("Deleting VirtualEthernet0/0/1")
+        vhost_if2.remove_vpp_config()
+
+        self.logger.info("Verifying VirtualEthernet0/0/1 is deleted")
+
+        ifs = self.vapi.cli("show interface")
+        # verify VirtualEthernet0/0/0 still in the show
+        self.assertNotEqual(ifs.find('VirtualEthernet0/0/0'), -1)
+
+        # verify VirtualEthernet0/0/1 not in the show
+        self.assertEqual(ifs.find('VirtualEthernet0/0/1'), -1)
+
+        # verify VirtualEthernet0/0/1 is not in the dump
+        if_dump = self.vapi.sw_interface_vhost_user_dump()
+        self.assertFalse(vhost_if2.is_interface_config_in_dump(if_dump))
+
+        # verify VirtualEthernet0/0/0 is still in the dump
+        self.assertTrue(vhost_if1.is_interface_config_in_dump(if_dump))
+
+        # delete VirtualEthernet0/0/0
+        self.logger.info("Deleting VirtualEthernet0/0/0")
+        vhost_if1.remove_vpp_config()
+
+        self.logger.info("Verifying VirtualEthernet0/0/0 is deleted")
+
+        # verify VirtualEthernet0/0/0 not in the show
+        ifs = self.vapi.cli("show interface")
+        self.assertEqual(ifs.find('VirtualEthernet0/0/0'), -1)
+
+        # verify VirtualEthernet0/0/0 is not in the dump
+        if_dump = self.vapi.sw_interface_vhost_user_dump()
+        self.assertFalse(vhost_if1.is_interface_config_in_dump(if_dump))
+
+if __name__ == '__main__':
+    unittest.main(testRunner=VppTestRunner)