diff --git a/storage/src/sc_db_utils.rs b/storage/src/sc_db_utils.rs
index 691ba7e..0a72503 100644
--- a/storage/src/sc_db_utils.rs
+++ b/storage/src/sc_db_utils.rs
@@ -49,7 +49,7 @@ impl DataBlob {
     }
 }
 
-#[derive(Debug, Clone, Copy, Serialize, Deserialize)]
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq)]
 pub enum DataBlobChangeVariant {
     Created {
         id: usize,
@@ -86,10 +86,29 @@ pub fn produce_blob_from_fit_vec(data: Vec<u8>) -> DataBlob {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use serde_json;
 
     const TEST_BLOB_SIZE: usize = 256; // Define a test blob size for simplicity
     static SC_DATA_BLOB_SIZE: usize = TEST_BLOB_SIZE;
 
+    fn sample_vec() -> Vec<u8> {
+        (0..SC_DATA_BLOB_SIZE).collect::<Vec<usize>>().iter().map(|&x| x as u8).collect()
+    }
+
+    fn sample_data_blob() -> DataBlob {
+        let vec: Vec<u8> = sample_vec();
+        produce_blob_from_fit_vec(vec)
+    }
+
+    #[test]
+    fn test_serialize_data_blob() {
+        let blob = sample_data_blob();
+        let json = serde_json::to_string(&blob).unwrap();
+
+        let expected_json = serde_json::to_string(&sample_vec()).unwrap();
+        assert_eq!(json, expected_json);
+    }
+
     #[test]
     fn test_produce_blob_from_fit_vec() {
         let data = (0..0 + 255).collect();
diff --git a/template/zk_test_template/test_methods/guest/src/bin/template_sc.rs b/template/zk_test_template/test_methods/guest/src/bin/template_sc.rs
index 86eb512..168277a 100644
--- a/template/zk_test_template/test_methods/guest/src/bin/template_sc.rs
+++ b/template/zk_test_template/test_methods/guest/src/bin/template_sc.rs
@@ -6,12 +6,7 @@ use {sc_name}::{SmartContract, InputParameters, PublicOutputs, PrivateOutputs};
 use sc_core::traits::{IContract, IInputParameters, IPublicOutput, IPrivateOutput};
 use sc_core::{{execution_type_trait}};
 
-use sc_core::PublicSCContext;
-
-//Not sure, how path will look like, so
-//ToDo: Make it available from sc_core
-//Curently in storage
-use sc_core::{produce_blob_list_from_sc_public_state, compare_blob_lists};
+use sc_core::{PublicSCContext, produce_blob_list_from_sc_public_state, compare_blob_lists};
 
 fn main() {
     let mut state: SmartContract = env::read();