diff --git a/patch-db/src/test.rs b/patch-db/src/test.rs
index e702e72..79ce572 100644
--- a/patch-db/src/test.rs
+++ b/patch-db/src/test.rs
@@ -3,10 +3,11 @@ use super::*;
 #[tokio::test]
 async fn basic() {
     let db = PatchDb::open("test.db").await.unwrap();
-    let _rev = db
-        .put(&JsonPointer::<&'static str>::default(), &"test")
-        .await
-        .unwrap();
+    db.put(&JsonPointer::<&'static str>::default(), &Sample{a: "test1".to_string(), b: Child{a: "test2".to_string(), b: 4} }).await.unwrap();
+    let ptr: JsonPointer = "/b/b".parse().unwrap();
+    db.put(&ptr, &"hello").await.unwrap();
+    let get_res: Value = db.get(&ptr).await.unwrap();
+    assert_eq!(get_res, "hello");
 }
 
 #[derive(Debug, serde::Deserialize, serde::Serialize)]