+ 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()
+