100 lines
2.3 KiB
Rust
100 lines
2.3 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
|
|
// This file is part of Parity.
|
|
|
|
// Parity is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// Parity is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//! Random path
|
|
|
|
use std::path::*;
|
|
use std::fs;
|
|
use std::env;
|
|
use rand::random;
|
|
|
|
pub struct RandomTempPath {
|
|
path: PathBuf
|
|
}
|
|
|
|
pub fn random_filename() -> String {
|
|
random_str(8)
|
|
}
|
|
|
|
pub fn random_str(len: usize) -> String {
|
|
(0..len).map(|_| ((random::<f32>() * 26.0) as u8 + 97) as char).collect()
|
|
}
|
|
|
|
impl RandomTempPath {
|
|
pub fn new() -> RandomTempPath {
|
|
let mut dir = env::temp_dir();
|
|
dir.push(random_filename());
|
|
RandomTempPath {
|
|
path: dir.clone()
|
|
}
|
|
}
|
|
|
|
pub fn create_dir() -> RandomTempPath {
|
|
let mut dir = env::temp_dir();
|
|
dir.push(random_filename());
|
|
fs::create_dir_all(dir.as_path()).unwrap();
|
|
RandomTempPath {
|
|
path: dir.clone()
|
|
}
|
|
}
|
|
|
|
pub fn as_path(&self) -> &PathBuf {
|
|
&self.path
|
|
}
|
|
|
|
pub fn as_str(&self) -> &str {
|
|
self.path.to_str().unwrap()
|
|
}
|
|
|
|
pub fn new_in(&self, name: &str) -> String {
|
|
let mut path = self.path.clone();
|
|
path.push(name);
|
|
path.to_str().unwrap().to_owned()
|
|
}
|
|
}
|
|
|
|
impl Drop for RandomTempPath {
|
|
fn drop(&mut self) {
|
|
if let Err(e) = fs::remove_dir_all(self.as_path()) {
|
|
panic!("Failed to remove temp directory. Here's what prevented this from happening: ({})", e);
|
|
}
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn creates_dir() {
|
|
let temp = RandomTempPath::create_dir();
|
|
assert!(fs::metadata(temp.as_path()).unwrap().is_dir());
|
|
}
|
|
|
|
#[test]
|
|
fn destroys_dir() {
|
|
let path_buf = {
|
|
let temp = RandomTempPath::create_dir();
|
|
assert!(fs::metadata(temp.as_path()).unwrap().is_dir());
|
|
let path_buf = temp.as_path().to_path_buf();
|
|
path_buf
|
|
};
|
|
|
|
assert!(fs::metadata(&path_buf).is_err());
|
|
}
|
|
|
|
#[test]
|
|
fn provides_random() {
|
|
let temp = RandomTempPath::create_dir();
|
|
assert!(temp.as_path().to_str().is_some());
|
|
}
|