1 files changed, 57 insertions, 3 deletions

diff --git a/library/std/src/fs/tests.rs b/library/std/src/fs/tests.rs
index 401def184..e2480bcbb 100644
--- a/library/std/src/fs/tests.rs
+++ b/library/std/src/fs/tests.rs
@@ -1,7 +1,7 @@
 use crate::io::prelude::*;
 
 use crate::env;
-use crate::fs::{self, File, OpenOptions};
+use crate::fs::{self, File, FileTimes, OpenOptions};
 use crate::io::{BorrowedBuf, ErrorKind, SeekFrom};
 use crate::mem::MaybeUninit;
 use crate::path::Path;
@@ -9,7 +9,7 @@ use crate::str;
 use crate::sync::Arc;
 use crate::sys_common::io::test::{tmpdir, TempDir};
 use crate::thread;
-use crate::time::{Duration, Instant};
+use crate::time::{Duration, Instant, SystemTime};
 
 use rand::RngCore;
 
@@ -919,6 +919,7 @@ fn symlink_noexist() {
 
 #[test]
 fn read_link() {
+    let tmpdir = tmpdir();
     if cfg!(windows) {
         // directory symlink
         assert_eq!(check!(fs::read_link(r"C:\Users\All Users")), Path::new(r"C:\ProgramData"));
@@ -933,8 +934,11 @@ fn read_link() {
                 Path::new(r"C:\Users")
             );
         }
+        // Check that readlink works with non-drive paths on Windows.
+        let link = tmpdir.join("link_unc");
+        check!(symlink_dir(r"\\localhost\c$\", &link));
+        assert_eq!(check!(fs::read_link(&link)), Path::new(r"\\localhost\c$\"));
     }
-    let tmpdir = tmpdir();
     let link = tmpdir.join("link");
     if !got_symlink_permission(&tmpdir) {
         return;
@@ -1629,3 +1633,53 @@ fn rename_directory() {
     assert!(new_path.join("newdir").is_dir());
     assert!(new_path.join("newdir/temp.txt").exists());
 }
+
+#[test]
+fn test_file_times() {
+    #[cfg(target_os = "ios")]
+    use crate::os::ios::fs::FileTimesExt;
+    #[cfg(target_os = "macos")]
+    use crate::os::macos::fs::FileTimesExt;
+    #[cfg(target_os = "watchos")]
+    use crate::os::watchos::fs::FileTimesExt;
+    #[cfg(windows)]
+    use crate::os::windows::fs::FileTimesExt;
+
+    let tmp = tmpdir();
+    let file = File::create(tmp.join("foo")).unwrap();
+    let mut times = FileTimes::new();
+    let accessed = SystemTime::UNIX_EPOCH + Duration::from_secs(12345);
+    let modified = SystemTime::UNIX_EPOCH + Duration::from_secs(54321);
+    times = times.set_accessed(accessed).set_modified(modified);
+    #[cfg(any(windows, target_os = "macos", target_os = "ios", target_os = "watchos"))]
+    let created = SystemTime::UNIX_EPOCH + Duration::from_secs(32123);
+    #[cfg(any(windows, target_os = "macos", target_os = "ios", target_os = "watchos"))]
+    {
+        times = times.set_created(created);
+    }
+    match file.set_times(times) {
+        // Allow unsupported errors on platforms which don't support setting times.
+        #[cfg(not(any(
+            windows,
+            all(
+                unix,
+                not(any(
+                    target_os = "android",
+                    target_os = "redox",
+                    target_os = "espidf",
+                    target_os = "horizon"
+                ))
+            )
+        )))]
+        Err(e) if e.kind() == ErrorKind::Unsupported => return,
+        Err(e) => panic!("error setting file times: {e:?}"),
+        Ok(_) => {}
+    }
+    let metadata = file.metadata().unwrap();
+    assert_eq!(metadata.accessed().unwrap(), accessed);
+    assert_eq!(metadata.modified().unwrap(), modified);
+    #[cfg(any(windows, target_os = "macos", target_os = "ios", target_os = "watchos"))]
+    {
+        assert_eq!(metadata.created().unwrap(), created);
+    }
+}