From a7d1886067e361eb6bdad691638660f66a640db7 Mon Sep 17 00:00:00 2001
From: Dylan Reid <dgreid@chromium.org>
Date: Wed, 11 Nov 2020 16:57:04 -0800
Subject: [PATCH] cros_async: fix unittest for uring

It was broken by the RawFd removal from GuestMemory.

Change-Id: Ifa927fb7f6a84db55ca27e0f8ffa42475a3f8c58
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/2533723
Reviewed-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-by: Michael Hoyle <mikehoyle@google.com>
Tested-by: Dylan Reid <dgreid@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Commit-Queue: Dylan Reid <dgreid@chromium.org>
---
 cros_async/src/uring_futures/uring_source.rs | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/cros_async/src/uring_futures/uring_source.rs b/cros_async/src/uring_futures/uring_source.rs
index 15b88b8230..1d6a1a21e4 100644
--- a/cros_async/src/uring_futures/uring_source.rs
+++ b/cros_async/src/uring_futures/uring_source.rs
@@ -299,17 +299,15 @@ mod tests {
 
     #[test]
     fn read_to_mem() {
-        use vm_memory::{GuestAddress, GuestMemory};
-
         use crate::uring_mem::VecIoWrapper;
+        use std::io::Write;
+        use tempfile::tempfile;
 
         let io_obj = Box::pin({
             // Use guest memory as a test file, it implements AsRawFd.
-            let source = GuestMemory::new(&[(GuestAddress(0), 8192)]).unwrap();
-            source
-                .get_slice_at_addr(GuestAddress(0), 8192)
-                .unwrap()
-                .write_bytes(0x55);
+            let mut source = tempfile().unwrap();
+            let data = vec![0x55; 8192];
+            source.write(&data).unwrap();
             UringSource::new(source).unwrap()
         });