envision 0.15.1

A ratatui framework for collaborative TUI development with headless testing support
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

use super::*;
use crate::component::test_utils;

fn sample_state() -> EventStreamState {
    let mut state = EventStreamState::new();

    let id = state.next_id;
    state.next_id += 1;
    state.events.push(
        StreamEvent::new(id, 1000.0, EventLevel::Info, "Request received")
            .with_source("api")
            .with_field("path", "/users"),
    );

    let id = state.next_id;
    state.next_id += 1;
    state.events.push(
        StreamEvent::new(id, 1001.0, EventLevel::Debug, "Query executed")
            .with_source("db")
            .with_field("ms", "12"),
    );

    let id = state.next_id;
    state.next_id += 1;
    state.events.push(
        StreamEvent::new(id, 1002.0, EventLevel::Warning, "Cache miss")
            .with_source("cache")
            .with_field("key", "usr"),
    );

    let id = state.next_id;
    state.next_id += 1;
    state.events.push(
        StreamEvent::new(id, 1003.0, EventLevel::Error, "Timeout")
            .with_source("api")
            .with_field("ms", "5000"),
    );

    state
}

// =============================================================================
// Snapshot tests
// =============================================================================

#[test]
fn test_snapshot_default_empty() {
    let state = EventStreamState::new();
    let (mut terminal, theme) = test_utils::setup_render(80, 20);
    terminal
        .draw(|frame| {
            EventStream::view(&state, &mut RenderContext::new(frame, frame.area(), &theme));
        })
        .unwrap();
    insta::assert_snapshot!(terminal.backend().to_string());
}

#[test]
fn test_snapshot_populated() {
    let state = sample_state();
    let (mut terminal, theme) = test_utils::setup_render(80, 20);
    terminal
        .draw(|frame| {
            EventStream::view(&state, &mut RenderContext::new(frame, frame.area(), &theme));
        })
        .unwrap();
    insta::assert_snapshot!(terminal.backend().to_string());
}

#[test]
fn test_snapshot_focused() {
    let state = sample_state();
    let (mut terminal, theme) = test_utils::setup_render(80, 20);
    terminal
        .draw(|frame| {
            EventStream::view(
                &state,
                &mut RenderContext::new(frame, frame.area(), &theme).focused(true),
            );
        })
        .unwrap();
    insta::assert_snapshot!(terminal.backend().to_string());
}

#[test]
fn test_snapshot_with_title() {
    let mut state = EventStreamState::new().with_title("System Events");
    state.push_event(EventLevel::Info, "Started successfully");
    state.push_event(EventLevel::Warning, "High memory usage");
    state.push_event(EventLevel::Error, "Failed to connect");
    let (mut terminal, theme) = test_utils::setup_render(80, 20);
    terminal
        .draw(|frame| {
            EventStream::view(&state, &mut RenderContext::new(frame, frame.area(), &theme));
        })
        .unwrap();
    insta::assert_snapshot!(terminal.backend().to_string());
}

#[test]
fn test_snapshot_disabled() {
    let state = EventStreamState::new();
    let (mut terminal, theme) = test_utils::setup_render(80, 20);
    terminal
        .draw(|frame| {
            EventStream::view(
                &state,
                &mut RenderContext::new(frame, frame.area(), &theme).disabled(true),
            );
        })
        .unwrap();
    insta::assert_snapshot!(terminal.backend().to_string());
}

#[test]
fn test_snapshot_filtered() {
    let mut state = sample_state();
    state.level_filter = Some(EventLevel::Warning);
    let (mut terminal, theme) = test_utils::setup_render(80, 20);
    terminal
        .draw(|frame| {
            EventStream::view(&state, &mut RenderContext::new(frame, frame.area(), &theme));
        })
        .unwrap();
    insta::assert_snapshot!(terminal.backend().to_string());
}

#[test]
fn test_snapshot_search_active() {
    let mut state = sample_state();
    EventStream::update(&mut state, EventStreamMessage::FocusSearch);
    EventStream::update(&mut state, EventStreamMessage::SearchInput('a'));
    EventStream::update(&mut state, EventStreamMessage::SearchInput('p'));
    EventStream::update(&mut state, EventStreamMessage::SearchInput('i'));
    let (mut terminal, theme) = test_utils::setup_render(80, 20);
    terminal
        .draw(|frame| {
            EventStream::view(
                &state,
                &mut RenderContext::new(frame, frame.area(), &theme).focused(true),
            );
        })
        .unwrap();
    insta::assert_snapshot!(terminal.backend().to_string());
}