diff --git a/src/data_structures/test.c b/src/data_structures/test.c
index 721232e..56f872a 100644
--- a/src/data_structures/test.c
+++ b/src/data_structures/test.c
@@ -148,6 +148,13 @@ int main(void) {
       }
     }
 
+    key = 5;
+    CHECK_TRUE(simple_archiver_hash_map_get(hash_map, &key, sizeof(int)) == NULL);
+    key = 10;
+    CHECK_TRUE(simple_archiver_hash_map_get(hash_map, &key, sizeof(int)) != NULL);
+    key = 15;
+    CHECK_TRUE(simple_archiver_hash_map_get(hash_map, &key, sizeof(int)) == NULL);
+
     simple_archiver_hash_map_free(&hash_map);
   }