5 fn check_display_eq(iter: &Vec<impl Display>) {
6 let mut collected = String::new();
8 let disp = format!("{} ", it);
9 collected.push_str(&disp);
11 assert_eq!("0 3 27 823 4891 1 0", collected.trim());
15 let i32_list_vec = vec![0i32, 3, 27, 823, 4891, 1, 0];
16 let u32_list_vec = vec![0u32, 3, 27, 823, 4891, 1, 0];
17 let str_list_vec = vec!["0", "3", "27", "823", "4891", "1", "0"];
19 check_display_eq(&i32_list_vec);
20 check_display_eq(&u32_list_vec);
21 check_display_eq(&str_list_vec);