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#![warn(clippy::all)]
pub fn bubble_sort<T: PartialOrd>(list: &mut[T]) {
let mut n = list.len();
loop {
let mut lastly_swapped= 0;
for i in 1..n {
if list[i - 1] > list[i] {
list.swap(i - 1, i);
lastly_swapped = i;
}
}
n = lastly_swapped;
if n <= 1 {
break;
}
}
}
#[cfg(test)]
mod tests {
#[test]
fn test_bubble_sort() {
use super::bubble_sort;
let mut list = [4, 8, 9, 2, 3];
bubble_sort(&mut list);
assert_eq!(list, [2, 3, 4, 8, 9]);
}
#[test]
fn test_bubble_sort_with_ordered_array() {
use super::bubble_sort;
let mut list = [2, 3, 4, 8, 9];
bubble_sort(&mut list);
assert_eq!(list, [2, 3, 4, 8, 9]);
}
#[test]
fn test_bubble_sort_with_reverse_ordered_array() {
use super::bubble_sort;
let mut list = [9, 8, 4, 3, 2];
bubble_sort(&mut list);
assert_eq!(list, [2, 3, 4, 8, 9]);
}
#[test]
fn test_bubble_sort_with_single_element_array() {
use super::bubble_sort;
let mut list= [ 42 ];
bubble_sort(&mut list);
assert_eq!(list, [ 42 ]);
}
#[test]
fn test_bubble_sort_with_empty_array() {
use super::bubble_sort;
let mut list: [usize; 0] = [];
bubble_sort(&mut list);
assert_eq!(list, []);
}
#[test]
fn test_bubble_sort_with_vec() {
use super::bubble_sort;
let mut list = vec![4, 8, 9, 2, 3];
bubble_sort(&mut list);
assert_eq!(list, [2, 3, 4, 8, 9]);
}
}