Add test

src/tests/simple.rs

@@ -276,6 +276,33 @@ fn root_hash_similar_hashmap_db() {
     assert_ne!(root_hash_1, root_hash_2);
 }
 
+#[test]
+fn double_insert() {
+    let tempdir = tempfile::tempdir().unwrap();
+    let db = create_rocks_db(tempdir.path()).unwrap();
+    let config = BonsaiStorageConfig::default();
+    let mut bonsai_storage: BonsaiStorage<_, _, Pedersen> =
+        BonsaiStorage::new(RocksDB::new(&db, RocksDBConfig::default()), config).unwrap();
+    let mut id_builder = BasicIdBuilder::new();
+    let pair1 = (
+        vec![1, 2, 1],
+        Felt::from_hex("0x2acf9d2ae5a475818075672b04e317e9da3d5180fed2c5f8d6d8a5fd5a92257")
+            .unwrap(),
+    );
+    let bitvec = BitVec::from_vec(pair1.0.clone());
+    bonsai_storage.insert(&bitvec, &pair1.1).unwrap();
+    bonsai_storage.commit(id_builder.new_id()).unwrap();
+    let pair2 = (
+        vec![1, 2, 4],
+        Felt::from_hex("0x02808c7d8f3745e55655ad3f51f096d0c06a41f3d76caf96bad80f9be9ced171")
+            .unwrap(),
+    );
+    let bitvec = BitVec::from_vec(pair2.0.clone());
+    bonsai_storage.insert(&bitvec, &pair2.1).unwrap();
+    bonsai_storage.insert(&bitvec, &pair2.1).unwrap();
+
+}
+
 #[test]
 fn get_changes() {
     let tempdir = tempfile::tempdir().unwrap();