From 552b285b2f6bbcdbb74ee39577b2d345423dc23d Mon Sep 17 00:00:00 2001
From: Rostyslav Tyshko <tyshko.rostyslav@gmail.com>
Date: Fri, 25 Oct 2024 00:39:33 +0200
Subject: [PATCH] add test_get_item_not_exists

---
 utxo/src/utxo_tree.rs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/utxo/src/utxo_tree.rs b/utxo/src/utxo_tree.rs
index 8b28de1..462ed9f 100644
--- a/utxo/src/utxo_tree.rs
+++ b/utxo/src/utxo_tree.rs
@@ -146,4 +146,19 @@ mod tests {
         assert_eq!(retrieved_utxo.unwrap().hash, utxo.hash);
     }
 
+    #[test]
+    fn test_get_item_not_exists() {
+        let mut smt = UTXOSparseMerkleTree::new();
+        let utxo = sample_utxo();
+
+        // Insert one UTXO and try to fetch a different hash
+        smt.insert_item(utxo).unwrap();
+
+        let non_existent_hash = TreeHashType::default();
+        let result = smt.get_item(non_existent_hash).unwrap();
+
+        // Test that retrieval for a non-existent UTXO returns None
+        assert!(result.is_none());
+    }
+
 }