Files
tokio/tokio-fs/tests/dir.rs
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#![warn(rust_2018_idioms)]
use tokio::fs;
use tokio_test::assert_ok;
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use futures_util::future;
use futures_util::try_stream::TryStreamExt;
use std::sync::{Arc, Mutex};
use tempfile::tempdir;
#[tokio::test]
async fn create_dir() {
let base_dir = tempdir().unwrap();
let new_dir = base_dir.path().join("foo");
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let new_dir_2 = new_dir.clone();
assert_ok!(fs::create_dir(new_dir).await);
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assert!(new_dir_2.is_dir());
}
#[tokio::test]
async fn create_all() {
let base_dir = tempdir().unwrap();
let new_dir = base_dir.path().join("foo").join("bar");
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let new_dir_2 = new_dir.clone();
assert_ok!(fs::create_dir_all(new_dir).await);
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assert!(new_dir_2.is_dir());
}
#[tokio::test]
async fn remove() {
let base_dir = tempdir().unwrap();
let new_dir = base_dir.path().join("foo");
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let new_dir_2 = new_dir.clone();
std::fs::create_dir(new_dir.clone()).unwrap();
assert_ok!(fs::remove_dir(new_dir).await);
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assert!(!new_dir_2.exists());
}
#[tokio::test]
async fn read() {
let base_dir = tempdir().unwrap();
let p = base_dir.path();
std::fs::create_dir(p.join("aa")).unwrap();
std::fs::create_dir(p.join("bb")).unwrap();
std::fs::create_dir(p.join("cc")).unwrap();
let files = Arc::new(Mutex::new(Vec::new()));
let f = files.clone();
let p = p.to_path_buf();
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let read_dir_fut = fs::read_dir(p).await.unwrap();
read_dir_fut
.try_for_each(move |e| {
let s = e.file_name().to_str().unwrap().to_string();
f.lock().unwrap().push(s);
future::ok(())
})
.await
.unwrap();
let mut files = files.lock().unwrap();
files.sort(); // because the order is not guaranteed
assert_eq!(
*files,
vec!["aa".to_string(), "bb".to_string(), "cc".to_string()]
);
}