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]
rename_file()8 async fn rename_file() {
9     let temp_dir = tempdir().unwrap();
10 
11     let file_path = temp_dir.path().join("a.txt");
12 
13     fs::write(&file_path, b"Hello File!").await.unwrap();
14 
15     assert!(fs::try_exists(&file_path).await.unwrap());
16 
17     let new_file_path = temp_dir.path().join("b.txt");
18 
19     fs::rename(&file_path, &new_file_path).await.unwrap();
20 
21     assert!(fs::try_exists(new_file_path).await.unwrap());
22 
23     // original file should no longer exist
24     match fs::try_exists(file_path).await {
25         Ok(exists) => assert!(!exists),
26         Err(_) => println!("ignored try_exists error after rename"),
27     };
28 }
29