--- a/examples/asyncdb/src/main.rs	Wed Sep 28 10:17:14 2022 +0200
+++ b/examples/asyncdb/src/main.rs	Wed Sep 28 11:14:57 2022 +0200
@@ -1,16 +1,40 @@
 use tokio::main;
 
-use rusty_leveldb::{AsyncDB, Options};
+use rusty_leveldb::{AsyncDB, Options, Status, StatusCode};
 
 #[main(flavor = "current_thread")]
 async fn main() {
     let adb = AsyncDB::new("testdb", Options::default()).unwrap();
 
-    assert!(adb.put("Hello".as_bytes().to_owned(), "World".as_bytes().to_owned()).await.is_ok());
+    adb.put("Hello".as_bytes().to_owned(), "World".as_bytes().to_owned())
+        .await
+        .expect("put()");
 
     let r = adb.get("Hello".as_bytes().to_owned()).await;
     assert_eq!(r, Ok(Some("World".as_bytes().to_owned())));
 
+    let snapshot = adb.get_snapshot().await.expect("get_snapshot()");
+
+    adb.delete("Hello".as_bytes().to_owned())
+        .await
+        .expect("delete()");
+
+    // A snapshot allows us to travel back in time before the deletion.
+    let r2 = adb.get_at(snapshot, "Hello".as_bytes().to_owned()).await;
+    assert_eq!(r2, Ok(Some("World".as_bytes().to_owned())));
+
+    // Once dropped, a snapshot cannot be used anymore.
+    adb.drop_snapshot(snapshot).await.expect("drop_snapshot()");
+
+    let r3 = adb.get_at(snapshot, "Hello".as_bytes().to_owned()).await;
+    assert_eq!(
+        r3,
+        Err(Status {
+            code: StatusCode::AsyncError,
+            err: "Unknown snapshot reference: this is a bug".to_string()
+        })
+    );
+
     adb.flush().await.expect("flush()");
     adb.close().await.expect("close()");
 }