revue 2.71.1

A Vue-style TUI framework for Rust with CSS styling
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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167

//! Module integration tests

#![allow(unused_imports)]

use revue::reactive::*;
use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering};
use std::sync::Arc;
use std::time::Duration;

#[test]
fn test_automatic_dependency_tracking() {
    let count = signal(0);
    let run_count = Arc::new(AtomicUsize::new(0));

    let run_count_clone = run_count.clone();
    let count_clone = count.clone();
    let _effect = effect(move || {
        let _ = count_clone.get();
        run_count_clone.fetch_add(1, Ordering::SeqCst);
    });

    assert_eq!(run_count.load(Ordering::SeqCst), 1);

    count.set(1);
    assert_eq!(run_count.load(Ordering::SeqCst), 2);

    count.set(2);
    assert_eq!(run_count.load(Ordering::SeqCst), 3);
}

#[test]
fn test_multiple_signals_dependency() {
    let a = signal(1);
    let b = signal(2);
    let sum = Arc::new(AtomicUsize::new(0));
    let run_count = Arc::new(AtomicUsize::new(0));

    let sum_clone = sum.clone();
    let run_count_clone = run_count.clone();
    let a_clone = a.clone();
    let b_clone = b.clone();
    let _effect = effect(move || {
        sum_clone.store((a_clone.get() + b_clone.get()) as usize, Ordering::SeqCst);
        run_count_clone.fetch_add(1, Ordering::SeqCst);
    });

    assert_eq!(sum.load(Ordering::SeqCst), 3);
    assert_eq!(run_count.load(Ordering::SeqCst), 1);

    a.set(10);
    assert_eq!(sum.load(Ordering::SeqCst), 12);
    assert_eq!(run_count.load(Ordering::SeqCst), 2);

    b.set(20);
    assert_eq!(sum.load(Ordering::SeqCst), 30);
    assert_eq!(run_count.load(Ordering::SeqCst), 3);
}

#[test]
fn test_effect_stop_removes_tracking() {
    let count = signal(0);
    let run_count = Arc::new(AtomicUsize::new(0));

    let run_count_clone = run_count.clone();
    let count_clone = count.clone();
    let effect_handle = effect(move || {
        let _ = count_clone.get();
        run_count_clone.fetch_add(1, Ordering::SeqCst);
    });

    assert_eq!(run_count.load(Ordering::SeqCst), 1);

    effect_handle.stop();

    count.set(1);
    assert_eq!(run_count.load(Ordering::SeqCst), 1);
}

#[test]
fn test_effect_with_borrow() {
    let items = signal(vec![1, 2, 3]);
    let sum = Arc::new(AtomicUsize::new(0));

    let sum_clone = sum.clone();
    let items_clone = items.clone();
    let _effect = effect(move || {
        let s: i32 = items_clone.borrow().iter().sum();
        sum_clone.store(s as usize, Ordering::SeqCst);
    });

    assert_eq!(sum.load(Ordering::SeqCst), 6);

    items.update(|v| v.push(4));
    assert_eq!(sum.load(Ordering::SeqCst), 10);
}

#[test]
fn test_effect_with_with() {
    let name = signal(String::from("World"));
    let greeting = Arc::new(std::sync::RwLock::new(String::new()));

    let greeting_clone = greeting.clone();
    let name_clone = name.clone();
    let _effect = effect(move || {
        let g = name_clone.with(|n| format!("Hello, {}!", n));
        *greeting_clone.write().unwrap() = g;
    });

    assert_eq!(*greeting.read().unwrap(), "Hello, World!");

    name.set(String::from("Revue"));
    assert_eq!(*greeting.read().unwrap(), "Hello, Revue!");
}

#[test]
fn test_effect_dropped_cleans_up() {
    let count = signal(0);
    let run_count = Arc::new(AtomicUsize::new(0));

    {
        let run_count_clone = run_count.clone();
        let count_clone = count.clone();
        let _effect = effect(move || {
            let _ = count_clone.get();
            run_count_clone.fetch_add(1, Ordering::SeqCst);
        });

        assert_eq!(run_count.load(Ordering::SeqCst), 1);
        count.set(1);
        assert_eq!(run_count.load(Ordering::SeqCst), 2);
    }

    count.set(2);
    assert_eq!(run_count.load(Ordering::SeqCst), 2);
}

#[test]
fn test_conditional_dependency() {
    let flag = signal(true);
    let a = signal(1);
    let b = signal(2);
    let result = Arc::new(AtomicUsize::new(0));
    let run_count = Arc::new(AtomicUsize::new(0));

    let result_clone = result.clone();
    let run_count_clone = run_count.clone();
    let flag_clone = flag.clone();
    let a_clone = a.clone();
    let b_clone = b.clone();

    let _effect = effect(move || {
        let value = if flag_clone.get() {
            a_clone.get()
        } else {
            b_clone.get()
        };
        result_clone.store(value as usize, Ordering::SeqCst);
        run_count_clone.fetch_add(1, Ordering::SeqCst);
    });

    assert_eq!(result.load(Ordering::SeqCst), 1);
    assert_eq!(run_count.load(Ordering::SeqCst), 1);

    a.set(10);
    assert_eq!(result.load(Ordering::SeqCst), 10);
    assert_eq!(run_count.load(Ordering::SeqCst), 2);
}