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#![deny(rust_2018_idioms)]
use std::env;
use std::ffi::{OsStr, OsString};
use std::fs::File;
use std::io::{Read, Seek, SeekFrom, Write};
use std::path::{Path, PathBuf};
use tempfile::{tempdir, Builder, NamedTempFile, TempPath};
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_append() {
let mut tmpfile = Builder::new().append(true).tempfile().unwrap();
tmpfile.write(b"a").unwrap();
tmpfile.seek(SeekFrom::Start(0)).unwrap();
tmpfile.write(b"b").unwrap();
tmpfile.seek(SeekFrom::Start(0)).unwrap();
let mut buf = vec![0u8; 1];
tmpfile.read_exact(&mut buf).unwrap();
assert_eq!(buf, b"a");
}
#[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 temp_path_from_existing() {
let tmp_dir = tempdir().unwrap();
let tmp_file_path_1 = tmp_dir.path().join("testfile1");
let tmp_file_path_2 = tmp_dir.path().join("testfile2");
File::create(&tmp_file_path_1).unwrap();
assert!(tmp_file_path_1.exists(), "Test file 1 hasn't been created");
File::create(&tmp_file_path_2).unwrap();
assert!(tmp_file_path_2.exists(), "Test file 2 hasn't been created");
let tmp_path = TempPath::from_path(&tmp_file_path_1);
assert!(
tmp_file_path_1.exists(),
"Test file has been deleted before dropping TempPath"
);
drop(tmp_path);
assert!(
!tmp_file_path_1.exists(),
"Test file exists after dropping TempPath"
);
assert!(
tmp_file_path_2.exists(),
"Test file 2 has been deleted before dropping TempDir"
);
}
#[test]
#[allow(unreachable_code)]
fn temp_path_from_argument_types() {
// This just has to compile
return;
TempPath::from_path("");
TempPath::from_path(String::new());
TempPath::from_path(OsStr::new(""));
TempPath::from_path(OsString::new());
TempPath::from_path(Path::new(""));
TempPath::from_path(PathBuf::new());
TempPath::from_path(PathBuf::new().into_boxed_path());
}
#[test]
fn test_write_after_close() {
let path = NamedTempFile::new().unwrap().into_temp_path();
File::create(path).unwrap().write_all(b"test").unwrap();
}
#[test]
fn test_change_dir() {
env::set_current_dir(env::temp_dir()).unwrap();
let tmpfile = NamedTempFile::new_in(".").unwrap();
let path = env::current_dir().unwrap().join(tmpfile.path());
env::set_current_dir("/").unwrap();
drop(tmpfile);
assert!(!exists(path))
}
#[test]
fn test_into_parts() {
let mut file = NamedTempFile::new().unwrap();
write!(file, "abcd").expect("write failed");
let (mut file, temp_path) = file.into_parts();
let path = temp_path.to_path_buf();
assert!(path.exists());
drop(temp_path);
assert!(!path.exists());
write!(file, "efgh").expect("write failed");
file.seek(SeekFrom::Start(0)).unwrap();
let mut buf = String::new();
file.read_to_string(&mut buf).unwrap();
assert_eq!("abcdefgh", buf);
}
#[test]
fn test_keep() {
let mut tmpfile = NamedTempFile::new().unwrap();
write!(tmpfile, "abcde").unwrap();
let (mut f, temp_path) = tmpfile.into_parts();
let path;
{
assert!(exists(&temp_path));
path = temp_path.keep().unwrap();
assert!(exists(&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 again.
let mut f = File::open(&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(&path).unwrap();
}
|
