Relax hard-link test error assertions

Fixes #177.

Author: wingo

tests/rust/wasm32-wasip3/src/bin/filesystem-hard-links.rs

@@ -29,7 +29,9 @@ async fn test_hard_links(dir: &Descriptor) {
     let rmdir = |path: &str| dir.remove_directory_at(path.to_string());
 
     // link-at: async func(old-path-flags: path-flags, old-path: string, new-descriptor: borrow<descriptor>, new-path: string) -> result<_, error-code>;
-    assert_eq!(ln(".", "foo").await, Err(ErrorCode::NotPermitted));
+    assert!(matches!(ln(".", "foo").await,
+                     Err(ErrorCode::NotPermitted | ErrorCode::Access)));
+
     assert_eq!(ln("", "foo").await, Err(ErrorCode::NoEntry));
     assert_eq!(ln("", "").await, Err(ErrorCode::NoEntry));
     assert_eq!(ln("a.txt", "").await, Err(ErrorCode::NoEntry));
@@ -39,7 +41,7 @@ async fn test_hard_links(dir: &Descriptor) {
     assert_eq!(ln("a.txt", "/a.txt").await, Err(ErrorCode::NotPermitted));
     assert_eq!(ln("..", "a.txt").await, Err(ErrorCode::NotPermitted));
     assert_eq!(ln("a.txt", "..").await, Err(ErrorCode::NotPermitted));
-    // FIXME: https://github.com/WebAssembly/wasi-filesystem/issues/191
+    // FIXME: https://github.com/WebAssembly/WASI/issues/710
     // assert_eq!(ln_follow("parent/foo", "a.txt").await,
     //            Err(ErrorCode::NotPermitted));
     assert_eq!(ln("parent/foo", "a.txt").await,
@@ -51,9 +53,8 @@ async fn test_hard_links(dir: &Descriptor) {
     mkdir("d.cleanup").await.unwrap();
     ln("a.txt", "d.cleanup/q.txt").await.unwrap();
     rm("d.cleanup/q.txt").await.unwrap();
-    // https://github.com/WebAssembly/wasi-filesystem/issues/184
-    assert_eq!(ln("d.cleanup", "e.cleanup").await,
-               Err(ErrorCode::NotPermitted));
+    assert!(matches!(ln("d.cleanup", "e.cleanup").await,
+                     Err(ErrorCode::NotPermitted | ErrorCode::Access)))
     rmdir("d.cleanup").await.unwrap();
 }