tests: Added tracedump plugin tests

Type: test

Change-Id: Ie054924eb5e5b2b146db8d2b63511c8b0400f045
Signed-off-by: adrianvillin <avillin@cisco.com>

1 files changed, 101 insertions, 0 deletions

diff --git a/test/test_tracedump.py b/test/test_tracedump.py
new file mode 100644
index 00000000000..b2346d71f47
--- /dev/null
+++ b/test/test_tracedump.py
@@ -0,0 +1,101 @@
+from config import config
+from asfframework import VppTestRunner
+import unittest
+from framework import VppTestCase
+from scapy.layers.l2 import Ether
+from scapy.layers.inet import IP, UDP
+from random import randint
+import ctypes
+
+
+def create_stream(src_if, dst_if, count):
+    packets = []
+    for i in range(count):
+        p = (
+            Ether(dst=src_if.local_mac, src=src_if.remote_mac)
+            / IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4)
+            / UDP(sport=randint(49152, 65535), dport=5678)
+        )
+        packets.append(p)
+
+    return packets
+
+
+@unittest.skipIf(
+    "tracedump" in config.excluded_plugins, "Exclude tracedump plugin tests"
+)
+class TestTracedump(VppTestCase):
+    """Tracedump plugin tests"""
+
+    @classmethod
+    def setUpClass(cls):
+        super(TestTracedump, cls).setUpClass()
+        cls.create_pg_interfaces(range(2))
+        for i in cls.pg_interfaces:
+            i.admin_up()
+            i.config_ip4()
+            i.resolve_arp()
+
+    @classmethod
+    def tearDownClass(cls):
+        for i in cls.pg_interfaces:
+            i.unconfig_ip4()
+            i.admin_down()
+        super(TestTracedump, cls).tearDownClass()
+
+    def test_tracedump_include(self):
+        """Check API/CLI output + include node"""
+        packets = create_stream(self.pg0, self.pg1, 5)
+        self.pg0.add_stream(packets)
+
+        self.vapi.trace_clear_cache()
+        self.vapi.trace_clear_capture()
+        # pg-input node = 425
+        self.vapi.trace_set_filters(flag=1, node_index=425, count=5)
+        self.vapi.trace_capture_packets(
+            node_index=425,
+            max_packets=5,
+            use_filter=True,
+            verbose=True,
+            pre_capture_clear=True,
+        )
+
+        reply = self.vapi.cli(
+            "show graph node want_arcs input drop output punt handoff no_free polling interrupt"
+        )
+        self.assertIn("af-packet-input", reply)
+
+        self.pg_start()
+        reply = self.vapi.graph_node_get(cursor=ctypes.c_uint32(~0).value, index=425)
+        self.assertTrue(reply[1][0].name == "pg-input")
+        reply = self.vapi.trace_v2_dump(
+            thread_id=ctypes.c_uint32(~0).value, position=0, clear_cache=False
+        )
+        self.assertTrue(reply)
+        reply = self.vapi.trace_filter_function_dump()
+        self.assertTrue(reply[1].selected)
+
+    def test_tracedump_exclude(self):
+        """Exclude node (no trace output)"""
+        self.vapi.trace_clear_cache()
+        self.vapi.trace_clear_capture()
+
+        packets = create_stream(self.pg0, self.pg1, 5)
+        self.pg0.add_stream(packets)
+
+        # exclude node
+        self.vapi.trace_set_filters(flag=2, node_index=425, count=5)
+        self.vapi.trace_capture_packets(
+            node_index=425,
+            max_packets=5,
+            use_filter=True,
+            verbose=True,
+            pre_capture_clear=True,
+        )
+        self.pg_start()
+        reply = self.vapi.trace_v2_dump(thread_id=0, position=1, clear_cache=False)
+        self.assertFalse(reply)
+
+
+if __name__ == "__main__":
+    unittest.main(testRunner=VppTestRunner)