28     let mut c = ChunkUdp::new(src, dst);  in test_chunk_udp()  localVariable
29     let s = c.to_string();  in test_chunk_udp()
31     assert_eq!(c.network(), UDP_STR, "should match");  in test_chunk_udp()
34     assert_eq!(c.get_source_ip(), src.ip(), "ip should match");  in test_chunk_udp()
35     assert_eq!(c.get_destination_ip(), dst.ip(), "ip should match");  in test_chunk_udp()
38     let ts = c.set_timestamp();  in test_chunk_udp()
39     assert_eq!(ts, c.get_timestamp(), "timestamp should match");  in test_chunk_udp()
41     c.user_data = "Hello".as_bytes().to_vec();  in test_chunk_udp()
43     let cloned = c.clone_to();  in test_chunk_udp()
46     c.set_source_addr("2.3.4.5:4000")?;  in test_chunk_udp()
47     assert_eq!(c.source_addr().to_string(), "2.3.4.5:4000");  in test_chunk_udp()
50     assert!(!c.tag().is_empty(), "should not be empty");  in test_chunk_udp()
53     c.user_data[0] = b'!'; // oroginal: "Hello" -> "Hell!"  in test_chunk_udp()