string-overlap 1.0.0

A helper crate for "layering" ASCII art
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

use colored_crate::{ColoredString, Colorize};
use indoc::indoc;
use pretty_assertions::assert_eq;
use string_overlap::overlap_colored;

const BACKGROUND: &str = include_str!("../assets/flag/background.ascii");
const FOREGROUND: &str = include_str!("../assets/flag/foreground.ascii");

#[test]
fn plain_on_plain() {
    const EXPECTED: &str = indoc!{"
        ..................|||.................
        ..................|||.................
        ..................|||.................
        ..................|||.................
        ||||||||||||||||||||||||||||||||||||||
        ||||||||||||||||||||||||||||||||||||||
        ..................|||.................
        ..................|||.................
        ..................|||.................
        ..................|||.................
    "};

    let background = BACKGROUND.into();
    let foreground = FOREGROUND.into();
    let actual = overlap_colored(background, foreground).to_string();

    assert_eq!(
        actual,
        EXPECTED,
        "got\n{actual}\nexpected\n{expected}",
        actual=actual,
        expected=EXPECTED,
    );
}

#[test]
fn plain_on_colored() {
    let expected = {
        let vertical_line = format!(
            "{left}{middle}{right}\n",
            left="..................".red(),
            middle=ColoredString::from("|||"),
            right=".................".red(),
        );
        let horizontal_line: ColoredString = "||||||||||||||||||||||||||||||||||||||".into();
        let horizontal_line = format!("{}\n", horizontal_line);
        format!(
            "{top}{middle}{bottom}",
            top=vertical_line.repeat(4),
            middle=horizontal_line.repeat(2),
            bottom=vertical_line.repeat(4),
        )
    };
    let background = BACKGROUND.red();
    let foreground = FOREGROUND.into();
    let actual = overlap_colored(background, foreground).to_string();

    assert_eq!(
        actual,
        expected,
        "got\n{actual}\nexpected\n{expected}",
        actual=actual,
        expected=expected,
    );
}

#[test]
fn colored_on_plain() {
    let expected = {
        let vertical_line = format!(
            "{left}{middle}{right}\n",
            left=ColoredString::from(".................."),
            middle="|||".blue(),
            right=ColoredString::from("................."),
        );
        let horizontal_line = "||||||||||||||||||||||||||||||||||||||".blue();
        let horizontal_line = format!("{}\n", horizontal_line);
        format!(
            "{top}{middle}{bottom}",
            top=vertical_line.repeat(4),
            middle=horizontal_line.repeat(2),
            bottom=vertical_line.repeat(4),
        )
    };
    let background = BACKGROUND.into();
    let foreground = FOREGROUND.blue();
    let actual = overlap_colored(background, foreground).to_string();

    assert_eq!(
        actual,
        expected,
        "got\n{actual}\nexpected\n{expected}",
        actual=actual,
        expected=expected,
    );
}

#[test]
fn colored_on_colored() {
    let expected = {
        let vertical_line = format!(
            "{left}{middle}{right}\n",
            left="..................".blue(),
            middle="|||".yellow(),
            right=".................".blue(),
        );
        let horizontal_line = "||||||||||||||||||||||||||||||||||||||".yellow();
        let horizontal_line = format!("{}\n", horizontal_line);
        format!(
            "{top}{middle}{bottom}",
            top=vertical_line.repeat(4),
            middle=horizontal_line.repeat(2),
            bottom=vertical_line.repeat(4),
        )
    };
    let background = BACKGROUND.blue();
    let foreground = FOREGROUND.yellow();
    let actual = overlap_colored(background, foreground).to_string();

    assert_eq!(
        actual,
        expected,
        "got\n{actual}\nexpected\n{expected}",
        actual=actual,
        expected=expected,
    );
}