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Add tests for html module

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This commit is contained in:
Marcin Kulik
2025-06-24 18:29:49 +02:00
parent 1507ff0c12
commit dd370bbf84
1 changed files with 227 additions and 13 deletions
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234
src/html.rs
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@@ -22,6 +22,7 @@ pub fn extract_asciicast_link(html: &str) -> Option<String> {
|| t.eq_ignore_ascii_case("application/asciicast+json")
{
if let Some(href) = attr(link, "href") {
if !href.is_empty() {
return Some(href.to_string());
}
}
@@ -29,6 +30,7 @@ pub fn extract_asciicast_link(html: &str) -> Option<String> {
}
}
}
}
None
}
@@ -55,17 +57,229 @@ fn attr<'a>(tag: &'a str, name: &str) -> Option<&'a str> {
Some(&tag[start..end])
} else {
let start = i;
let mut end = i;
while end < bytes.len()
&& !bytes[end].is_ascii_whitespace()
&& bytes[end] != b'>'
&& bytes[end] != b'/'
{
end += 1;
None
}
}
Some(&tag[start..end])
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn extract_asciicast_link_valid_html() {
let html = r#"
<html>
<head>
<title>Test</title>
<link rel="alternate" type="application/x-asciicast" href="https://example.com/demo.cast">
</head>
<body>Content</body>
</html>
"#;
assert_eq!(
extract_asciicast_link(html),
Some("https://example.com/demo.cast".to_string())
);
}
#[test]
fn extract_asciicast_link_alternate_mime_type() {
let html = r#"
<html>
<head>
<link rel="alternate" type="application/asciicast+json" href="/demo.json">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), Some("/demo.json".to_string()));
}
#[test]
fn extract_asciicast_link_multiple_rel_values() {
let html = r#"
<html>
<head>
<link rel="foobar alternate" type="application/x-asciicast" href="demo.cast">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), Some("demo.cast".to_string()));
}
#[test]
fn extract_asciicast_link_case_insensitive() {
let html = r#"
<HTML>
<HEAD>
<LINK REL="ALTERNATE" TYPE="APPLICATION/X-ASCIICAST" HREF="DEMO.CAST">
</HEAD>
</HTML>
"#;
assert_eq!(extract_asciicast_link(html), Some("DEMO.CAST".to_string()));
}
#[test]
fn extract_asciicast_link_single_quotes() {
let html = r#"
<html>
<head>
<link rel='alternate' type='application/x-asciicast' href='demo.cast'>
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), Some("demo.cast".to_string()));
}
#[test]
fn extract_asciicast_link_mixed_quotes() {
let html = r#"
<html>
<head>
<link rel="alternate" type='application/x-asciicast' href="demo.cast">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), Some("demo.cast".to_string()));
}
#[test]
fn extract_asciicast_link_multiple_links() {
let html = r#"
<html>
<head>
<link rel="stylesheet" href="style.css">
<link rel="alternate" type="application/rss+xml" href="feed.rss">
<link rel="alternate" type="application/x-asciicast" href="first.cast">
<link rel="alternate" type="application/x-asciicast" href="second.cast">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), Some("first.cast".to_string()));
}
#[test]
fn extract_asciicast_link_no_head() {
let html = r#"
<html>
<body>
<link rel="alternate" type="application/x-asciicast" href="demo.cast">
</body>
</html>
"#;
assert_eq!(extract_asciicast_link(html), None);
}
#[test]
fn extract_asciicast_link_no_matching_link() {
let html = r#"
<html>
<head>
<link rel="stylesheet" href="style.css">
<link rel="alternate" type="application/rss+xml" href="feed.rss">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), None);
}
#[test]
fn extract_asciicast_link_wrong_rel() {
let html = r#"
<html>
<head>
<link rel="stylesheet" type="application/x-asciicast" href="demo.cast">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), None);
}
#[test]
fn extract_asciicast_link_wrong_type() {
let html = r#"
<html>
<head>
<link rel="alternate" type="text/plain" href="demo.cast">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), None);
}
#[test]
fn extract_asciicast_link_no_href() {
let html = r#"
<html>
<head>
<link rel="alternate" type="application/x-asciicast">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), None);
}
#[test]
fn extract_asciicast_link_empty_href() {
let html = r#"
<html>
<head>
<link rel="alternate" type="application/x-asciicast" href="">
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), None);
}
#[test]
fn extract_asciicast_link_malformed_html() {
let html = r#"
<html>
<head>
<link rel="alternate" type="application/x-asciicast" href="demo.cast"
</head>
</html>
"#;
assert_eq!(extract_asciicast_link(html), None);
}
#[test]
fn extract_asciicast_link_empty_html() {
assert_eq!(extract_asciicast_link(""), None);
}
#[test]
fn extract_asciicast_link_invalid_html() {
let html = "This is not HTML at all";
assert_eq!(extract_asciicast_link(html), None);
}
#[test]
fn extract_asciicast_link_special_characters_in_href() {
let html = r#"
<html>
<head>
<link rel="alternate" type="application/x-asciicast" href="https://example.com/cast?id=123&format=v3">
</head>
</html>
"#;
assert_eq!(
extract_asciicast_link(html),
Some("https://example.com/cast?id=123&format=v3".to_string())
);
}
}