test protein rf display

src/core/src/signature.rs

@@ -1517,6 +1517,19 @@ mod test {
         assert_eq!(protein_frame.frame_type(), "Protein");
     }
 
+    #[test]
+    fn test_readingframe_display_protein() {
+        // Create a Protein ReadingFrame
+        let protein_frame = ReadingFrame::Protein {
+            fw: b"MVHLK".to_vec(),
+            len: 5,
+        };
+
+        let output = format!("{}", protein_frame);
+        // Assert the output matches the expected format
+        assert_eq!(output, "Type: Protein (5aa), Forward: MVHLK");
+    }
+
     #[test]
     fn test_seqtohashes_frames_dna() {
         let sequence = b"AGTCGT";