1 #![warn(rust_2018_idioms)]
2 #![cfg(all(feature = "full", not(target_os = "wasi")))] // WASI does not support all fs operations
3 
4 use tempfile::tempdir;
5 use tokio::fs;
6 
7 #[tokio::test]
8 #[cfg_attr(miri, ignore)] // No `fchmod` in miri.
copy()9 async fn copy() {
10     let dir = tempdir().unwrap();
11 
12     let source_path = dir.path().join("foo.txt");
13     let dest_path = dir.path().join("bar.txt");
14 
15     fs::write(&source_path, b"Hello File!").await.unwrap();
16     fs::copy(&source_path, &dest_path).await.unwrap();
17 
18     let from = fs::read(&source_path).await.unwrap();
19     let to = fs::read(&dest_path).await.unwrap();
20 
21     assert_eq!(from, to);
22 }
23 
24 #[tokio::test]
25 #[cfg_attr(miri, ignore)] // No `fchmod` in miri.
copy_permissions()26 async fn copy_permissions() {
27     let dir = tempdir().unwrap();
28     let from_path = dir.path().join("foo.txt");
29     let to_path = dir.path().join("bar.txt");
30 
31     let from = tokio::fs::File::create(&from_path).await.unwrap();
32     let mut from_perms = from.metadata().await.unwrap().permissions();
33     from_perms.set_readonly(true);
34     from.set_permissions(from_perms.clone()).await.unwrap();
35 
36     tokio::fs::copy(from_path, &to_path).await.unwrap();
37 
38     let to_perms = tokio::fs::metadata(to_path).await.unwrap().permissions();
39 
40     assert_eq!(from_perms, to_perms);
41 }
42