+ self.assertEqual(
+ initial_fds,
+ ending_fds,
+ "initial client side file descriptor count: %s "
+ "is not equal to "
+ "ending client side file descriptor count: %s" % (initial_fds, ending_fds),
+ )
+
+ def test_symlink_values(self):
+ """Test symlinks reported values"""
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ p = list()
+ for i in range(5):
+ packet = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / IP(
+ src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4
+ )
+ p.append(packet)
+
+ self.send_and_expect(self.pg0, p, self.pg1)
+ pg1_tx = self.statistics.get_counter("/interfaces/pg1/tx")
+ if_tx = self.statistics.get_counter("/if/tx")
+
+ self.assertEqual(pg1_tx[0]["bytes"], if_tx[0][self.pg1.sw_if_index]["bytes"])
+ for i in self.pg_interfaces:
+ i.unconfig()
+ i.admin_down()
+
+ def test_symlink_add_del_interfaces(self):
+ """Test symlinks when adding and deleting interfaces"""
+ # We first create and delete interfaces
+ self.create_loopback_interfaces(1)
+ self.create_pg_interfaces(range(1))
+ self.loop0.remove_vpp_config()
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ p = list()
+ bytes_to_send = 0
+ for i in range(5):
+ packet = Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) / IP(
+ src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4
+ )
+ bytes_to_send += len(packet)
+ p.append(packet)
+
+ tx_before_sending = self.statistics.get_counter("/interfaces/pg1/tx")
+ rx_before_sending = self.statistics.get_counter("/interfaces/pg0/rx")
+ self.send_and_expect(self.pg0, p, self.pg1)
+ tx = self.statistics.get_counter("/interfaces/pg1/tx")
+ rx = self.statistics.get_counter("/interfaces/pg0/rx")
+
+ # We wait for nodes symlinks to update (interfaces created/deleted).
+ # ... and packets to be sent
+ self.sleep(0.1)
+ vectors = self.statistics.get_counter("/nodes/pg1-tx/vectors")
+
+ self.assertEqual(tx[0]["bytes"] - tx_before_sending[0]["bytes"], bytes_to_send)
+ self.assertEqual(tx[0]["packets"] - tx_before_sending[0]["packets"], 5)
+ self.assertEqual(rx[0]["bytes"] - rx_before_sending[0]["bytes"], bytes_to_send)
+ self.assertEqual(rx[0]["packets"] - rx_before_sending[0]["packets"], 5)
+ self.assertEqual(vectors[0], rx[0]["packets"])
+
+ for i in self.pg_interfaces:
+ i.unconfig()
+ i.admin_down()
+
+ def test_index_consistency(self):
+ """Test index consistency despite changes in the stats"""
+ d = self.statistics.ls(["/if/names"])
+ self.create_loopback_interfaces(10)
+ for i in range(10):
+ try:
+ s = self.statistics.dump(d)
+ break
+ except:
+ pass
+ k, v = s.popitem()
+ self.assertEqual(len(v), 11)
+
+ for i in self.lo_interfaces:
+ i.remove_vpp_config()