1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
use super::*;
use crate::cell::Cell;
/// # Safety
/// List must be valid.
unsafe fn assert_empty<T>(list: &mut UnsafeList<T>) {
assert!(unsafe { list.pop() }.is_none(), "assertion failed: list is not empty");
}
#[test]
fn init_empty() {
unsafe {
assert_empty(&mut UnsafeList::<i32>::new());
}
}
#[test]
fn push_pop() {
unsafe {
let mut node = UnsafeListEntry::new(1234);
let mut list = UnsafeList::new();
assert_eq!(list.push(&mut node), &1234);
assert_eq!(list.pop().unwrap(), &1234);
assert_empty(&mut list);
}
}
#[test]
fn push_remove() {
unsafe {
let mut node = UnsafeListEntry::new(1234);
let mut list = UnsafeList::new();
assert_eq!(list.push(&mut node), &1234);
list.remove(&mut node);
assert_empty(&mut list);
}
}
#[test]
fn push_remove_pop() {
unsafe {
let mut node1 = UnsafeListEntry::new(11);
let mut node2 = UnsafeListEntry::new(12);
let mut node3 = UnsafeListEntry::new(13);
let mut node4 = UnsafeListEntry::new(14);
let mut node5 = UnsafeListEntry::new(15);
let mut list = UnsafeList::new();
assert_eq!(list.push(&mut node1), &11);
assert_eq!(list.push(&mut node2), &12);
assert_eq!(list.push(&mut node3), &13);
assert_eq!(list.push(&mut node4), &14);
assert_eq!(list.push(&mut node5), &15);
list.remove(&mut node1);
assert_eq!(list.pop().unwrap(), &12);
list.remove(&mut node3);
assert_eq!(list.pop().unwrap(), &14);
list.remove(&mut node5);
assert_empty(&mut list);
assert_eq!(list.push(&mut node1), &11);
assert_eq!(list.pop().unwrap(), &11);
assert_empty(&mut list);
assert_eq!(list.push(&mut node3), &13);
assert_eq!(list.push(&mut node4), &14);
list.remove(&mut node3);
list.remove(&mut node4);
assert_empty(&mut list);
}
}
#[test]
fn complex_pushes_pops() {
unsafe {
let mut node1 = UnsafeListEntry::new(1234);
let mut node2 = UnsafeListEntry::new(4567);
let mut node3 = UnsafeListEntry::new(9999);
let mut node4 = UnsafeListEntry::new(8642);
let mut list = UnsafeList::new();
list.push(&mut node1);
list.push(&mut node2);
assert_eq!(list.pop().unwrap(), &1234);
list.push(&mut node3);
assert_eq!(list.pop().unwrap(), &4567);
assert_eq!(list.pop().unwrap(), &9999);
assert_empty(&mut list);
list.push(&mut node4);
assert_eq!(list.pop().unwrap(), &8642);
assert_empty(&mut list);
}
}
#[test]
fn cell() {
unsafe {
let mut node = UnsafeListEntry::new(Cell::new(0));
let mut list = UnsafeList::new();
let noderef = list.push(&mut node);
assert_eq!(noderef.get(), 0);
list.pop().unwrap().set(1);
assert_empty(&mut list);
assert_eq!(noderef.get(), 1);
}
}
|
