test(fs): Add a test case for read with timeout (#280)

Signed-off-by: Xuanwo <[email protected]>

compio-fs/tests/file.rs

@@ -1,7 +1,8 @@
-use std::io::prelude::*;
+use std::{io::prelude::*, time::Duration};
 
 use compio_fs::File;
 use compio_io::{AsyncReadAtExt, AsyncWriteAt, AsyncWriteAtExt};
+use compio_runtime::time::timeout;
 use tempfile::NamedTempFile;
 
 #[compio_macros::test]
@@ -79,6 +80,21 @@ async fn cancel_read() {
     read_hello(&file).await;
 }
 
+#[compio_macros::test]
+async fn timeout_read() {
+    let mut tempfile = tempfile();
+    tempfile.write_all(HELLO).unwrap();
+
+    let file = File::open(tempfile.path()).await.unwrap();
+
+    // Read a file with timeout.
+    let _ = timeout(Duration::from_nanos(1), async { read_hello(&file).await })
+        .await
+        .unwrap_err();
+
+    read_hello(&file).await;
+}
+
 #[compio_macros::test]
 async fn drop_open() {
     let tempfile = tempfile();