rumdl 0.1.76

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

use rumdl_lib::lint_context::LintContext;
use rumdl_lib::rule::Rule;
use rumdl_lib::rules::MD003HeadingStyle;
use rumdl_lib::rules::heading_utils::HeadingStyle;

#[test]
fn test_consistent_atx() {
    let rule = MD003HeadingStyle::default();
    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_consistent_atx_closed() {
    let rule = MD003HeadingStyle::new(HeadingStyle::AtxClosed);
    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_mixed_styles() {
    let rule = MD003HeadingStyle::default();
    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(), 1);
    assert_eq!(result[0].line, 2);
}

#[test]
fn test_fix_mixed_styles() {
    let rule = MD003HeadingStyle::default();
    let content = "# Heading 1\n## Heading 2 ##\n### Heading 3";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.fix(&ctx).unwrap();
    assert_eq!(result, "# Heading 1\n## Heading 2\n### Heading 3");
}

#[test]
fn test_fix_to_atx_closed() {
    let rule = MD003HeadingStyle::new(HeadingStyle::AtxClosed);
    let content = "# Heading 1\n## Heading 2\n### Heading 3";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.fix(&ctx).unwrap();
    assert_eq!(result, "# Heading 1 #\n## Heading 2 ##\n### Heading 3 ###");
}

#[test]
fn test_indented_headings() {
    let rule = MD003HeadingStyle::default();
    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_mixed_indentation() {
    let rule = MD003HeadingStyle::default();
    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_preserve_content() {
    let rule = MD003HeadingStyle::default();
    let content = "# Heading with *emphasis* and **bold**\n## Another heading with [link](url)";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.fix(&ctx).unwrap();
    assert_eq!(result, content);
}

#[test]
fn test_empty_headings() {
    let rule = MD003HeadingStyle::default();
    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_heading_with_trailing_space() {
    let rule = MD003HeadingStyle::default();
    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_consistent_setext() {
    let rule = MD003HeadingStyle::new(HeadingStyle::Setext1);
    let content = "Heading 1\n=========\n\nHeading 2\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_mixed_setext_atx() {
    let rule = MD003HeadingStyle::new(HeadingStyle::Setext1);
    let content = "Heading 1\n=========\n\n## Heading 2";
    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].line, 4);
}

#[test]
fn test_fix_to_setext() {
    let rule = MD003HeadingStyle::new(HeadingStyle::Setext1);
    let content = "# Heading 1\n## Heading 2";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.fix(&ctx).unwrap();
    assert_eq!(result, "Heading 1\n=========\nHeading 2\n---------");
}

#[test]
fn test_setext_with_formatting() {
    let rule = MD003HeadingStyle::new(HeadingStyle::Setext1);
    let content = "Heading with *emphasis*\n====================\n\nHeading with **bold**\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_fix_mixed_setext_atx() {
    let rule = MD003HeadingStyle::new(HeadingStyle::Setext1);
    let content = "Heading 1\n=========\n\n## Heading 2\n### Heading 3";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.fix(&ctx).unwrap();
    assert_eq!(result, "Heading 1\n=========\n\nHeading 2\n---------\n### Heading 3");
}

#[test]
fn test_setext_with_indentation() {
    let rule = MD003HeadingStyle::new(HeadingStyle::Setext1);
    let content = "  Heading 1\n  =========\n\n  Heading 2\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_with_front_matter() {
    let rule = MD003HeadingStyle::default();
    let content = "---\ntitle: \"Test Document\"\nauthor: \"Test Author\"\ndate: \"2024-04-03\"\n---\n\n# 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(),
        "Expected no warnings with front matter followed by ATX headings, but got {} warnings",
        result.len()
    );
}

#[test]
fn test_yaml_like_content_detected_as_setext_heading() {
    // Per CommonMark and markdownlint-cli: `---` in mid-document is a Setext underline,
    // not frontmatter. This content creates a Setext heading "config: value" with the `---`.
    // markdownlint-cli flags this as MD003 (heading style mismatch).
    let rule = MD003HeadingStyle::default();
    let content = "# Real Heading\n\n---\nconfig: value\nsetting: another value\n---\n\nMore content.";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    // The `---` after "setting: another value" creates a Setext h2 heading,
    // which conflicts with the ATX style used for "# Real Heading"
    assert!(
        !result.is_empty(),
        "Expected warning for Setext heading style mismatch, but got none"
    );
}

#[test]
fn test_legitimate_setext_headings_still_work() {
    let rule = MD003HeadingStyle::new(HeadingStyle::Setext1);
    let content = "Main Title\n==========\n\nSubtitle\n--------\n\nContent here.";
    let ctx = LintContext::new(content, rumdl_lib::config::MarkdownFlavor::Standard, None);
    let result = rule.check(&ctx).unwrap();
    assert!(
        result.is_empty(),
        "Legitimate Setext headings should still work, but got {} warnings: {:?}",
        result.len(),
        result
    );
}