tests: added simple CT6 plugin tests

Type: test

Change-Id: I77f119ac982170627484d792dc456753c9847af8
Signed-off-by: adrianvillin <avillin@cisco.com>

test/test_ct6.py

@@ -0,0 +1,72 @@
+from config import config
+from framework import VppTestCase
+from asfframework import VppTestRunner
+import unittest
+from scapy.layers.l2 import Ether
+from scapy.layers.inet import UDP
+from scapy.layers.inet6 import IPv6
+from random import randint
+
+
+# TODO: get an actual output from "show ip6 connection-tracker"
+@unittest.skipIf("ct6" in config.excluded_plugins, "Exclude CT6 plugin tests")
+class TestCt6(VppTestCase):
+    """CT6 plugin tests"""
+
+    @classmethod
+    def setUpClass(cls):
+        super(TestCt6, cls).setUpClass()
+        try:
+            cls.create_pg_interfaces(range(2))
+            for i in cls.pg_interfaces:
+                i.config_ip6().resolve_ndp()
+                i.admin_up()
+        except Exception:
+            cls.tearDownClass()
+            raise
+
+    @classmethod
+    def tearDownClass(cls):
+        super(TestCt6, cls).tearDownClass()
+
+    def create_stream(self, src_if, dst_if, count):
+        packets = []
+        for i in range(count):
+            p = (
+                Ether(src=src_if.remote_mac, dst=src_if.local_mac)
+                / IPv6(src=src_if.remote_ip6, dst=dst_if.remote_ip6)
+                / UDP(sport=randint(49152, 65535), dport=5678, chksum=0)
+            )
+            packets.append(p)
+        return packets
+
+    def test_ct6_vapi(self):
+        self.vapi.ct6_enable_disable(enable_disable=True, is_inside=True, sw_if_index=1)
+        self.vapi.ct6_enable_disable(
+            enable_disable=True, is_inside=False, sw_if_index=1
+        )
+
+        packets = self.create_stream(self.pg0, self.pg1, 5)
+        self.pg0.add_stream(packets)
+        self.pg_start()
+
+        self.vapi.ct6_enable_disable(1234, 567, True, True, "pg0", "disable")
+
+    def test_ct6_cli(self):
+        self.vapi.cli("set ct6 outside pg1")
+        self.vapi.cli("set ct6 inside pg1")
+
+        packets = self.create_stream(self.pg0, self.pg1, 5)
+        self.pg0.add_stream(packets)
+        self.pg_start()
+
+        reply = self.vapi.cli("show ip6 connection-tracker")
+        self.assertIn("Thread 0", reply)
+        reply = self.vapi.cli("test ip6 connection-tracker")
+        self.assertIn("End state", reply)
+
+        self.vapi.cli("set ct6 inside pg1 disable")
+
+
+if __name__ == "__main__":
+    unittest.main(testRunner=VppTestRunner)