lipgloss 0.1.1

Style definitions for nice terminal layouts. The core of the lipgloss-rs library.
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

use std::env;
use std::sync::{Mutex, OnceLock};

use lipgloss::renderer::*;

// Global mutex to serialize env-var dependent tests.
fn env_lock() -> &'static Mutex<()> {
    static LOCK: OnceLock<Mutex<()>> = OnceLock::new();
    LOCK.get_or_init(|| Mutex::new(()))
}

fn with_env_lock<F: FnOnce()>(f: F) {
    let _g = env_lock()
        .lock()
        .unwrap_or_else(|poisoned| poisoned.into_inner());
    f();
}

fn clear_env(keys: &[&str]) {
    for k in keys {
        env::remove_var(k);
    }
}

#[test]
fn detects_no_color_when_no_color_set() {
    with_env_lock(|| {
        // Arrange
        clear_env(&["COLORTERM", "TERM", "COLORFGBG"]);
        env::set_var("NO_COLOR", "1");

        // Act: use a fresh renderer
        let r = Renderer::new();
        let profile = r.color_profile();

        // Assert
        assert_eq!(profile, ColorProfileKind::NoColor);

        // Cleanup
        env::remove_var("NO_COLOR");
    });
}

#[test]
fn detects_truecolor_from_colorterm() {
    with_env_lock(|| {
        clear_env(&["NO_COLOR", "TERM", "COLORFGBG"]);
        env::set_var("COLORTERM", "truecolor");

        let r = Renderer::new();
        assert_eq!(r.color_profile(), ColorProfileKind::TrueColor);

        env::remove_var("COLORTERM");
    });
}

#[test]
fn detects_256_from_term() {
    with_env_lock(|| {
        clear_env(&["NO_COLOR", "COLORTERM", "COLORFGBG"]);
        env::set_var("TERM", "xterm-256color");

        let r = Renderer::new();
        assert_eq!(r.color_profile(), ColorProfileKind::ANSI256);

        env::remove_var("TERM");
    });
}

#[test]
fn detects_basic_color_from_term() {
    with_env_lock(|| {
        clear_env(&["NO_COLOR", "COLORTERM", "COLORFGBG"]);
        env::set_var("TERM", "xterm-color");

        let r = Renderer::new();
        assert_eq!(r.color_profile(), ColorProfileKind::ANSI);

        env::remove_var("TERM");
    });
}

#[test]
fn detects_dark_background_from_colorfgbg() {
    with_env_lock(|| {
        clear_env(&["NO_COLOR", "COLORTERM", "TERM"]);
        // bg=0 (black) => dark
        env::set_var("COLORFGBG", "15;0");
        let r = Renderer::new();
        assert!(r.has_dark_background());
        env::remove_var("COLORFGBG");
    });
}

#[test]
fn detects_light_background_from_colorfgbg() {
    with_env_lock(|| {
        clear_env(&["NO_COLOR", "COLORTERM", "TERM"]);
        // bg=7 (white) => light
        env::set_var("COLORFGBG", "0;7");
        let r = Renderer::new();
        assert!(!r.has_dark_background());
        env::remove_var("COLORFGBG");
    });
}

#[test]
fn explicit_setters_override_detection() {
    with_env_lock(|| {
        clear_env(&["NO_COLOR", "COLORTERM", "TERM", "COLORFGBG"]);
        env::set_var("TERM", "xterm-256color");

        let mut r = Renderer::new();
        // Explicitly override to NoColor and light background
        r.set_color_profile(ColorProfileKind::NoColor);
        r.set_has_dark_background(false);

        assert_eq!(r.color_profile(), ColorProfileKind::NoColor);
        assert!(!r.has_dark_background());

        env::remove_var("TERM");
    });
}

#[test]
fn default_renderer_replacement_copies_state() {
    with_env_lock(|| {
        clear_env(&["NO_COLOR", "COLORTERM", "TERM", "COLORFGBG"]);

        // Initialize default
        let _ = default_renderer();

        // Replace default with explicit settings
        let mut custom = Renderer::new();
        custom.set_color_profile(ColorProfileKind::ANSI256);
        custom.set_has_dark_background(false);
        set_default_renderer(custom);

        assert_eq!(color_profile(), ColorProfileKind::ANSI256);
        assert!(!has_dark_background());
    });
}

#[test]
fn global_setters_always_mutate_default() {
    with_env_lock(|| {
        clear_env(&["NO_COLOR", "COLORTERM", "TERM", "COLORFGBG"]);

        // Force initialization of default
        let _ = default_renderer();

        // Mutate via helpers
        set_color_profile(ColorProfileKind::ANSI);
        set_has_dark_background(true);

        assert_eq!(color_profile(), ColorProfileKind::ANSI);
        assert!(has_dark_background());
    });
}