rumdl 0.1.78

A fast Markdown linter written in Rust (Ru(st) MarkDown Linter)
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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201

use rumdl_lib::lint_context::LintContext;
use rumdl_lib::rule::Rule;
use rumdl_lib::rules::MD019NoMultipleSpaceAtx;
use rumdl_lib::utils::fix_utils::apply_warning_fixes;

#[test]
fn test_valid_atx_headings() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "# Heading 1\n## Heading 2\n### Heading 3";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert!(result.is_empty());
}

#[test]
fn test_invalid_atx_headings() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#  Heading 1\n##   Heading 2\n###    Heading 3";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert_eq!(result.len(), 3);
    assert_eq!(result[0].line, 1);
    assert_eq!(result[0].column, 2);
    assert_eq!(result[0].message, "Multiple spaces (2) after # in heading");
}

#[test]
fn test_mixed_atx_headings() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "# Heading 1\n##  Heading 2\n### Heading 3\n####   Heading 4";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert_eq!(result.len(), 2);
}

#[test]
fn test_code_block() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "```markdown\n#  Not a heading\n##   Also not a heading\n```\n# Real Heading";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert!(result.is_empty());
}

#[test]
fn test_fix_atx_headings() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#  Heading 1\n##   Heading 2\n###    Heading 3";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let fixed = rule.fix(&ctx).unwrap();
    assert_eq!(fixed, "# Heading 1\n## Heading 2\n### Heading 3");
}

#[test]
fn test_fix_mixed_atx_headings() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "# Heading 1\n##  Heading 2\n### Heading 3\n####   Heading 4";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let fixed = rule.fix(&ctx).unwrap();
    assert_eq!(fixed, "# Heading 1\n## Heading 2\n### Heading 3\n#### Heading 4");
}

#[test]
fn test_preserve_code_blocks() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "# Real Heading\n```\n#  Not a heading\n```\n# Another Heading";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let fixed = rule.fix(&ctx).unwrap();
    assert_eq!(fixed, "# Real Heading\n```\n#  Not a heading\n```\n# Another Heading");
}

#[test]
fn test_heading_with_multiple_hashes() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "######  Heading 6";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert_eq!(result.len(), 1);
    assert_eq!(result[0].message, "Multiple spaces (2) after ###### in heading");
    let fixed = rule.fix(&ctx).unwrap();
    assert_eq!(fixed, "###### Heading 6");
}

#[test]
fn test_not_a_heading() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "This is #  not a heading\nAnd this is also #   not a heading";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert!(result.is_empty());
}

#[test]
fn test_closed_atx_headings() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#  Heading 1 #\n##   Heading 2 ##\n###    Heading 3 ###";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert_eq!(result.len(), 3);
    let fixed = rule.fix(&ctx).unwrap();
    assert_eq!(fixed, "# Heading 1 #\n## Heading 2 ##\n### Heading 3 ###");
}

#[test]
fn test_many_spaces() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#     Heading with many spaces\n##      Another heading";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert_eq!(result.len(), 2);
    assert_eq!(result[0].message, "Multiple spaces (5) after # in heading");
    let fixed = rule.fix(&ctx).unwrap();
    assert_eq!(fixed, "# Heading with many spaces\n## Another heading");
}

#[test]
fn test_empty_headings() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#\n##\n###";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert!(result.is_empty());
}

#[test]
fn test_invalid_multiple_spaces() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#  Multiple Spaces\n\nRegular content\n\n##   More Spaces";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert_eq!(result.len(), 2);
    assert_eq!(result[0].line, 1);
    assert_eq!(result[1].line, 5);
}

#[test]
fn test_valid_single_space() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "# Single Space\n\n## Also correct";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert!(result.is_empty());
}

#[test]
fn test_fix_multiple_spaces() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#  Multiple Spaces\n\n##   More Spaces";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let fixed = rule.fix(&ctx).unwrap();
    assert_eq!(fixed, "# Multiple Spaces\n\n## More Spaces");
}

#[test]
fn test_roundtrip_check_fixes_match_fix() {
    let rule = MD019NoMultipleSpaceAtx::new();

    let cases = vec![
        "#  Heading 1\n##   Heading 2\n###    Heading 3",
        "# Heading 1\n##  Heading 2\n### Heading 3\n####   Heading 4",
        "#  Multiple Spaces\n\nRegular content\n\n##   More Spaces",
        "######  Heading 6",
        "#     Heading with many spaces\n##      Another heading",
        "#  Heading 1 #\n##   Heading 2 ##\n###    Heading 3 ###",
        "# Real Heading\n```\n#  Not a heading\n```\n# Another Heading",
        "#  Heading\n\nSome text\n\n##   Another\n\nMore text\n",
    ];

    for content in cases {
        let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
        let warnings = rule.check(&ctx).unwrap();
        let fix_result = rule.fix(&ctx).unwrap();
        let check_based_fix = apply_warning_fixes(content, &warnings).unwrap();
        assert_eq!(fix_result, check_based_fix, "Mismatch for content: {content:?}");
    }
}

#[test]
fn test_roundtrip_fix_is_idempotent() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#  Heading 1\n##   Heading 2\n###    Heading 3";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let fixed_once = rule.fix(&ctx).unwrap();
    let ctx2 = LintContext::new(&fixed_once, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let fixed_twice = rule.fix(&ctx2).unwrap();
    assert_eq!(fixed_once, fixed_twice);
    let warnings = rule.check(&ctx2).unwrap();
    assert!(warnings.is_empty(), "Fixed content should produce no warnings");
}

#[test]
fn test_roundtrip_fix_with_trailing_newline() {
    let rule = MD019NoMultipleSpaceAtx::new();
    let content = "#  Heading\n\nText\n";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let warnings = rule.check(&ctx).unwrap();
    let fix_result = rule.fix(&ctx).unwrap();
    let check_based_fix = apply_warning_fixes(content, &warnings).unwrap();
    assert_eq!(fix_result, check_based_fix);
    assert!(fix_result.ends_with('\n'), "Should preserve trailing newline");
}