1 files changed, 22 insertions, 0 deletions
diff --git a/third_party/rust/tokio/src/time/tests/mod.rs b/third_party/rust/tokio/src/time/tests/mod.rs
new file mode 100644
index 0000000000..35e1060aca
--- /dev/null
+++ b/third_party/rust/tokio/src/time/tests/mod.rs
@@ -0,0 +1,22 @@
+mod test_sleep;
+
+use crate::time::{self, Instant};
+use std::time::Duration;
+
+fn assert_send<T: Send>() {}
+fn assert_sync<T: Sync>() {}
+
+#[test]
+fn registration_is_send_and_sync() {
+    use crate::time::Sleep;
+
+    assert_send::<Sleep>();
+    assert_sync::<Sleep>();
+}
+
+#[test]
+#[should_panic]
+fn sleep_is_eager() {
+    let when = Instant::now() + Duration::from_millis(100);
+    let _ = time::sleep_until(when);
+}