blob: 4ded326491799e3c0cb9a08e525389ab3bc5de04 [file] [log] [blame]
extern crate tempfile;
use std::env;
use std::fs::File;
use std::io::{Read, Seek, SeekFrom, Write};
use std::path::Path;
use tempfile::{Builder, NamedTempFile};
fn exists<P: AsRef<Path>>(path: P) -> bool {
std::fs::metadata(path.as_ref()).is_ok()
}
#[test]
fn test_basic() {
let mut tmpfile = NamedTempFile::new().unwrap();
write!(tmpfile, "abcde").unwrap();
tmpfile.seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
tmpfile.read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
}
#[test]
fn test_deleted() {
let tmpfile = NamedTempFile::new().unwrap();
let path = tmpfile.path().to_path_buf();
assert!(exists(&path));
drop(tmpfile);
assert!(!exists(&path));
}
#[test]
fn test_persist() {
let mut tmpfile = NamedTempFile::new().unwrap();
let old_path = tmpfile.path().to_path_buf();
let persist_path = env::temp_dir().join("persisted_temporary_file");
write!(tmpfile, "abcde").unwrap();
{
assert!(exists(&old_path));
let mut f = tmpfile.persist(&persist_path).unwrap();
assert!(!exists(&old_path));
// Check original file
f.seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
f.read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
}
{
// Try opening it at the new path.
let mut f = File::open(&persist_path).unwrap();
f.seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
f.read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
}
std::fs::remove_file(&persist_path).unwrap();
}
#[test]
fn test_persist_noclobber() {
let mut tmpfile = NamedTempFile::new().unwrap();
let old_path = tmpfile.path().to_path_buf();
let persist_target = NamedTempFile::new().unwrap();
let persist_path = persist_target.path().to_path_buf();
write!(tmpfile, "abcde").unwrap();
assert!(exists(&old_path));
{
tmpfile = tmpfile.persist_noclobber(&persist_path).unwrap_err().into();
assert!(exists(&old_path));
std::fs::remove_file(&persist_path).unwrap();
drop(persist_target);
}
tmpfile.persist_noclobber(&persist_path).unwrap();
// Try opening it at the new path.
let mut f = File::open(&persist_path).unwrap();
f.seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
f.read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
std::fs::remove_file(&persist_path).unwrap();
}
#[test]
fn test_customnamed() {
let tmpfile = Builder::new()
.prefix("tmp")
.suffix(&".rs".to_string())
.rand_bytes(12)
.tempfile()
.unwrap();
let name = tmpfile.path().file_name().unwrap().to_str().unwrap();
assert!(name.starts_with("tmp"));
assert!(name.ends_with(".rs"));
assert_eq!(name.len(), 18);
}
#[test]
fn test_reopen() {
let source = NamedTempFile::new().unwrap();
let mut first = source.reopen().unwrap();
let mut second = source.reopen().unwrap();
drop(source);
write!(first, "abcde").expect("write failed");
let mut buf = String::new();
second.read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
}
#[test]
fn test_into_file() {
let mut file = NamedTempFile::new().unwrap();
let path = file.path().to_owned();
write!(file, "abcde").expect("write failed");
assert!(path.exists());
let mut file = file.into_file();
assert!(!path.exists());
file.seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
file.read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
}
#[test]
fn test_immut() {
let tmpfile = NamedTempFile::new().unwrap();
(&tmpfile).write_all(b"abcde").unwrap();
(&tmpfile).seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
(&tmpfile).read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
}
#[test]
fn test_temppath() {
let mut tmpfile = NamedTempFile::new().unwrap();
write!(tmpfile, "abcde").unwrap();
let path = tmpfile.into_temp_path();
assert!(path.is_file());
}
#[test]
fn test_temppath_persist() {
let mut tmpfile = NamedTempFile::new().unwrap();
write!(tmpfile, "abcde").unwrap();
let tmppath = tmpfile.into_temp_path();
let old_path = tmppath.to_path_buf();
let persist_path = env::temp_dir().join("persisted_temppath_file");
{
assert!(exists(&old_path));
tmppath.persist(&persist_path).unwrap();
assert!(!exists(&old_path));
}
{
// Try opening it at the new path.
let mut f = File::open(&persist_path).unwrap();
f.seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
f.read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
}
std::fs::remove_file(&persist_path).unwrap();
}
#[test]
fn test_temppath_persist_noclobber() {
let mut tmpfile = NamedTempFile::new().unwrap();
write!(tmpfile, "abcde").unwrap();
let mut tmppath = tmpfile.into_temp_path();
let old_path = tmppath.to_path_buf();
let persist_target = NamedTempFile::new().unwrap();
let persist_path = persist_target.path().to_path_buf();
assert!(exists(&old_path));
{
tmppath = tmppath.persist_noclobber(&persist_path).unwrap_err().into();
assert!(exists(&old_path));
std::fs::remove_file(&persist_path).unwrap();
drop(persist_target);
}
tmppath.persist_noclobber(&persist_path).unwrap();
// Try opening it at the new path.
let mut f = File::open(&persist_path).unwrap();
f.seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
f.read_to_string(&mut buf).unwrap();
assert_eq!("abcde", buf);
std::fs::remove_file(&persist_path).unwrap();
}
#[test]
fn test_write_after_close() {
let path = NamedTempFile::new().unwrap().into_temp_path();
File::create(path).unwrap().write_all(b"test").unwrap();
}