lru2 0.1.0

Documentation 
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
106
107
108
109
110
111
112
113

use super::Register;

#[test]
fn get_empty() {
    let mut register = Register::<u8, u8>::new(100);
    assert!(register.get(0).is_none());
}

#[test]
fn set_one() {
    let mut register = Register::<u8, u8>::new(100);
    assert!(!register.set(0, Some(1)));
}

#[test]
fn set_again() {
    let mut register = Register::<u8, u8>::new(100);
    assert!(!register.set(0, Some(1)));
    assert!(register.set(0, Some(2)));
}

#[test]
fn get_one() {
    let mut register = Register::<u8, u8>::new(100);
    assert!(!register.set(0, Some(1)));
    assert!(*register.get(0).unwrap() == 1);
}

#[test]
fn set_many() {
    let mut register = Register::<u8, u8>::new(100);
    let mut range = 0..200;
    loop {
        match range.next() {
            Some(i) => { assert!(!register.set(i, Some(i+1))); },
            None => { break; }
        }
    }
    range = 100..200;
    loop {
        match range.next() {
            Some(i) => { assert!(register.set(i, Some(i+1))); },
            None => { break; }
        }
    }
    range = 0..100;
    loop {
        match range.next() {
            Some(i) => { assert!(!register.set(i, Some(i+1))); },
            None => { break; }
        }
    }
}

#[test]
fn get_many() {
    let mut register = Register::<u8, u8>::new(100);
    let mut range = 0..200;
    loop {
        match range.next() {
            Some(i) => {
                assert!(!register.set(i, Some(i+1)));
                assert!(*register.get(i).unwrap() == i+1);
            },
            None => { break; }
        }
    }
    range = 100..200;
    loop {
        match range.next() {
            Some(i) => {
                assert!(register.set(i, Some(i+1)));
                assert!(*register.get(i).unwrap() == i+1);
            },
            None => { break; }
        }
    }
    range = 0..100;
    loop {
        match range.next() {
            Some(i) => {
                assert!(register.get(i).is_none());
            },
            None => { break; }
        }
    }
}

#[test]
fn reset() {
    let mut register = Register::<u8, u8>::new(100);
    let mut range = 0..100;
    loop {
        match range.next() {
            Some(i) => {
                assert!(!register.set(i, Some(i+1)));
                assert!(*register.get(i).unwrap() == i+1);
            },
            None => { break; }
        }
    }
    register.reset();
    range = 0..100;
    loop {
        match range.next() {
            Some(i) => {
                assert!(register.get(i).is_none());
                assert!(!register.set(i, Some(i+1)));
            },
            None => { break; }
        }
    }
}