Source code
Revision control
Copy as Markdown
Other Tools
#![warn(rust_2018_idioms)]
#![cfg(all(feature = "full", not(target_os = "wasi")))] // WASI does not support all fs operations
use tokio::fs;
use tokio_test::{assert_err, assert_ok};
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");
let new_dir_2 = new_dir.clone();
assert_ok!(fs::create_dir(new_dir).await);
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");
let new_dir_2 = new_dir.clone();
assert_ok!(fs::create_dir_all(new_dir).await);
assert!(new_dir_2.is_dir());
}
#[tokio::test]
async fn build_dir() {
let base_dir = tempdir().unwrap();
let new_dir = base_dir.path().join("foo").join("bar");
let new_dir_2 = new_dir.clone();
assert_ok!(fs::DirBuilder::new().recursive(true).create(new_dir).await);
assert!(new_dir_2.is_dir());
assert_err!(
fs::DirBuilder::new()
.recursive(false)
.create(new_dir_2)
.await
);
}
#[tokio::test]
#[cfg(unix)]
async fn build_dir_mode_read_only() {
let base_dir = tempdir().unwrap();
let new_dir = base_dir.path().join("abc");
assert_ok!(
fs::DirBuilder::new()
.recursive(true)
.mode(0o444)
.create(&new_dir)
.await
);
assert!(fs::metadata(new_dir)
.await
.expect("metadata result")
.permissions()
.readonly());
}
#[tokio::test]
async fn remove() {
let base_dir = tempdir().unwrap();
let new_dir = base_dir.path().join("foo");
let new_dir_2 = new_dir.clone();
std::fs::create_dir(new_dir.clone()).unwrap();
assert_ok!(fs::remove_dir(new_dir).await);
assert!(!new_dir_2.exists());
}
#[tokio::test]
async fn read_inherent() {
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();
let mut entries = fs::read_dir(p).await.unwrap();
while let Some(e) = assert_ok!(entries.next_entry().await) {
let s = e.file_name().to_str().unwrap().to_string();
f.lock().unwrap().push(s);
}
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()]
);
}
#[tokio::test]
async fn read_dir_entry_info() {
let temp_dir = tempdir().unwrap();
let file_path = temp_dir.path().join("a.txt");
fs::write(&file_path, b"Hello File!").await.unwrap();
let mut dir = fs::read_dir(temp_dir.path()).await.unwrap();
let first_entry = dir.next_entry().await.unwrap().unwrap();
assert_eq!(first_entry.path(), file_path);
assert_eq!(first_entry.file_name(), "a.txt");
assert!(first_entry.metadata().await.unwrap().is_file());
assert!(first_entry.file_type().await.unwrap().is_file());
}