5 let all_nuls1 = "\0\x00\u{0}\u{0}";
6 let all_nuls2 = "\u{0}\u{0}\x00\0";
7 let all_nuls3 = "\u{0}\u{0}\x00\0";
8 let all_nuls4 = "\x00\u{0}\0\u{0}";
10 // sizes for two should suffice
11 assert_eq!(all_nuls1.len(), 4);
12 assert_eq!(all_nuls2.len(), 4);
14 // string equality should pass between the strings
15 assert_eq!(all_nuls1, all_nuls2);
16 assert_eq!(all_nuls2, all_nuls3);
17 assert_eq!(all_nuls3, all_nuls4);
19 // all extracted characters in all_nuls are equivalent to each other
20 for c1 in all_nuls1.chars()
22 for c2 in all_nuls1.chars()
28 // testing equality between explicit character literals
29 assert_eq!('\0', '\x00');
30 assert_eq!('\u{0}', '\x00');
31 assert_eq!('\u{0}', '\u{0}');
33 // NUL characters should make a difference
34 assert!("Hello World" != "Hello \0World");
35 assert!("Hello World" != "Hello World\0");