openethereum/ethstore/tests/util/transient_dir.rs

59 lines
1.2 KiB
Rust

use std::path::PathBuf;
use std::{env, fs};
use rand::{Rng, OsRng};
use ethstore::dir::{KeyDirectory, DiskDirectory};
use ethstore::ethkey::Address;
use ethstore::{Error, SafeAccount};
pub fn random_dir() -> PathBuf {
let mut rng = OsRng::new().unwrap();
let mut dir = env::temp_dir();
dir.push(format!("{:x}-{:x}", rng.next_u64(), rng.next_u64()));
dir
}
pub struct TransientDir {
dir: DiskDirectory,
path: PathBuf,
}
impl TransientDir {
pub fn create() -> Result<Self, Error> {
let path = random_dir();
let result = TransientDir {
dir: try!(DiskDirectory::create(&path)),
path: path,
};
Ok(result)
}
pub fn open() -> Self {
let path = random_dir();
TransientDir {
dir: DiskDirectory::at(&path),
path: path,
}
}
}
impl Drop for TransientDir {
fn drop(&mut self) {
fs::remove_dir_all(&self.path).expect("Expected to remove temp dir");
}
}
impl KeyDirectory for TransientDir {
fn load(&self) -> Result<Vec<SafeAccount>, Error> {
self.dir.load()
}
fn insert(&self, account: SafeAccount) -> Result<(), Error> {
self.dir.insert(account)
}
fn remove(&self, address: &Address) -> Result<(), Error> {
self.dir.remove(address)
}
}