1 files changed, 38 insertions, 0 deletions
diff --git a/third_party/rust/tokio/src/fs/open_options/mock_open_options.rs b/third_party/rust/tokio/src/fs/open_options/mock_open_options.rs
new file mode 100644
index 0000000000..cbbda0ec25
--- /dev/null
+++ b/third_party/rust/tokio/src/fs/open_options/mock_open_options.rs
@@ -0,0 +1,38 @@
+//! Mock version of std::fs::OpenOptions;
+use mockall::mock;
+
+use crate::fs::mocks::MockFile;
+#[cfg(unix)]
+use std::os::unix::fs::OpenOptionsExt;
+#[cfg(windows)]
+use std::os::windows::fs::OpenOptionsExt;
+use std::{io, path::Path};
+
+mock! {
+    #[derive(Debug)]
+    pub OpenOptions {
+        pub fn append(&mut self, append: bool) -> &mut Self;
+        pub fn create(&mut self, create: bool) -> &mut Self;
+        pub fn create_new(&mut self, create_new: bool) -> &mut Self;
+        pub fn open<P: AsRef<Path> + 'static>(&self, path: P) -> io::Result<MockFile>;
+        pub fn read(&mut self, read: bool) -> &mut Self;
+        pub fn truncate(&mut self, truncate: bool) -> &mut Self;
+        pub fn write(&mut self, write: bool) -> &mut Self;
+    }
+    impl Clone for OpenOptions {
+        fn clone(&self) -> Self;
+    }
+    #[cfg(unix)]
+    impl OpenOptionsExt for OpenOptions {
+        fn custom_flags(&mut self, flags: i32) -> &mut Self;
+        fn mode(&mut self, mode: u32) -> &mut Self;
+    }
+    #[cfg(windows)]
+    impl OpenOptionsExt for OpenOptions {
+        fn access_mode(&mut self, access: u32) -> &mut Self;
+        fn share_mode(&mut self, val: u32) -> &mut Self;
+        fn custom_flags(&mut self, flags: u32) -> &mut Self;
+        fn attributes(&mut self, val: u32) -> &mut Self;
+        fn security_qos_flags(&mut self, flags: u32) -> &mut Self;
+    }
+}