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103 lines
2.6 KiB
Rust
103 lines
2.6 KiB
Rust
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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use deno_core::url::Url;
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pub fn find_root(urls: Vec<&Url>) -> Option<Url> {
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if urls.is_empty() {
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return None;
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}
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// Gets the common first part of all the urls.
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let root = urls[0]
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.as_ref()
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.chars()
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.enumerate()
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.take_while(|(i, c)| {
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urls.iter().all(|u| u.as_ref().chars().nth(*i) == Some(*c))
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})
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.map(|(_, c)| c)
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.collect::<String>();
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if let Some(index) = root.rfind('/') {
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// Removes the basename part if exists.
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Url::parse(&root[..index + 1]).ok()
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} else {
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Url::parse(&root).ok()
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}
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}
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pub fn percent_to_class(percent: f32) -> &'static str {
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match percent {
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x if x < 50.0 => "low",
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x if x < 80.0 => "medium",
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_ => "high",
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}
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}
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pub fn calc_coverage_display_info(
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hit: usize,
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miss: usize,
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) -> (usize, f32, &'static str) {
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let total = hit + miss;
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let percent = if total == 0 {
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100.0
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} else {
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(hit as f32 / total as f32) * 100.0
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};
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let class = percent_to_class(percent);
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(total, percent, class)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn test_find_root() {
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let urls = vec![
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Url::parse("file:///a/b/c/d/e.ts").unwrap(),
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Url::parse("file:///a/b/c/d/f.ts").unwrap(),
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Url::parse("file:///a/b/c/d/g.ts").unwrap(),
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];
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let urls = urls.iter().collect();
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assert_eq!(find_root(urls), Url::parse("file:///a/b/c/d/").ok());
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}
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#[test]
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fn test_find_root_empty() {
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let urls = vec![];
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assert_eq!(find_root(urls), None);
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}
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#[test]
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fn test_find_root_with_similar_filenames() {
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let urls = vec![
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Url::parse("file:///a/b/c/d/foo0.ts").unwrap(),
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Url::parse("file:///a/b/c/d/foo1.ts").unwrap(),
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Url::parse("file:///a/b/c/d/foo2.ts").unwrap(),
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];
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let urls = urls.iter().collect();
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assert_eq!(find_root(urls), Url::parse("file:///a/b/c/d/").ok());
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}
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#[test]
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fn test_find_root_with_similar_dirnames() {
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let urls = vec![
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Url::parse("file:///a/b/c/foo0/mod.ts").unwrap(),
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Url::parse("file:///a/b/c/foo1/mod.ts").unwrap(),
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Url::parse("file:///a/b/c/foo2/mod.ts").unwrap(),
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];
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let urls = urls.iter().collect();
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assert_eq!(find_root(urls), Url::parse("file:///a/b/c/").ok());
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}
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#[test]
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fn test_percent_to_class() {
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assert_eq!(percent_to_class(0.0), "low");
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assert_eq!(percent_to_class(49.9), "low");
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assert_eq!(percent_to_class(50.0), "medium");
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assert_eq!(percent_to_class(79.9), "medium");
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assert_eq!(percent_to_class(80.0), "high");
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assert_eq!(percent_to_class(100.0), "high");
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}
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}
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