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#![cfg_attr(feature = "deny-warnings", deny(warnings))]
#![warn(rust_2018_idioms, unused_lifetimes)]
#![allow(clippy::assertions_on_constants)]
#![feature(path_file_prefix)]
use std::cmp::Ordering;
use std::ffi::OsStr;
use std::fs::{self, DirEntry};
use std::path::Path;
#[test]
fn test_missing_tests() {
let missing_files = explore_directory(Path::new("./tests"));
if !missing_files.is_empty() {
assert!(
false,
"Didn't see a test file for the following files:\n\n{}\n",
missing_files
.iter()
.map(|s| format!("\t{s}"))
.collect::<Vec<_>>()
.join("\n")
);
}
}
// Test for missing files.
fn explore_directory(dir: &Path) -> Vec<String> {
let mut missing_files: Vec<String> = Vec::new();
let mut current_file = String::new();
let mut files: Vec<DirEntry> = fs::read_dir(dir).unwrap().filter_map(Result::ok).collect();
files.sort_by(|x, y| {
match x.path().file_prefix().cmp(&y.path().file_prefix()) {
Ordering::Equal => (),
ord => return ord,
}
// Sort rs files before the others if they share the same prefix. So when we see
// the file prefix for the first time and it's not a rust file, it means the rust
// file has to be missing.
match (
x.path().extension().and_then(OsStr::to_str),
y.path().extension().and_then(OsStr::to_str),
) {
(Some("rs"), _) => Ordering::Less,
(_, Some("rs")) => Ordering::Greater,
_ => Ordering::Equal,
}
});
for entry in &files {
let path = entry.path();
if path.is_dir() {
missing_files.extend(explore_directory(&path));
} else {
let file_prefix = path.file_prefix().unwrap().to_str().unwrap().to_string();
if let Some(ext) = path.extension() {
match ext.to_str().unwrap() {
"rs" => current_file = file_prefix.clone(),
"stderr" | "stdout" => {
if file_prefix != current_file {
missing_files.push(path.to_str().unwrap().to_string());
}
},
_ => continue,
};
}
}
}
missing_files
}
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