diff --git a/fa-compression/src/algorithm2/mod.rs b/fa-compression/src/algorithm2/mod.rs
index fe63209..3736398 100644
--- a/fa-compression/src/algorithm2/mod.rs
+++ b/fa-compression/src/algorithm2/mod.rs
@@ -64,6 +64,11 @@ mod tests {
         table
     }
 
+    #[test]
+    fn test_default() {
+        assert_eq!(CompressionTable::default().entries.len(), 0);
+    }
+
     #[test]
     fn test_add_entry() {
         assert_eq!(create_compresion_table().entries.len(), 5);