v0.3.10-pre.006

crates/ksp-raw-transaction-lib/unit_tests/signature.rs

@@ -1,5 +1,7 @@
 // file: crates/ksp-raw-transaction-lib/unit_tests/signature.rs
-// version: 2
+// version: 3
+
+use base64::Engine; // rust-rules: trait-import
 
 #[test]
 fn pre_002_signature_parser_accepts_exact_sixty_four_zero_bytes() {
@@ -60,3 +62,20 @@ fn pre_004_embedded_signature_rejects_invalid_base64_noncanonical_short_vec_and_
     }
     return;
 }
+
+#[test]
+fn pre_006_embedded_signature_extracts_terminal_v1_signature_and_rejects_trailing_bytes() {
+    let encoded = "gQEAAR8AAABRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUVFRUQECQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFBQUFCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQkJCQgcAAAAAAAAACAAAAAkAAAAAgAAAAQEDAAABAgOqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq";
+    let signature = crate::extract_raw_transaction_signature_from_binary_base64(encoded);
+    assert!(signature.is_ok());
+    if let std::result::Result::Ok(signature) = signature {
+        assert_eq!(signature.as_bytes(), &[0xaa_u8; 64]);
+    }
+    let decoded = base64::engine::general_purpose::STANDARD.decode(encoded);
+    assert!(decoded.is_ok());
+    if let std::result::Result::Ok(mut decoded) = decoded {
+        decoded.push(0);
+        let trailing = base64::engine::general_purpose::STANDARD.encode(decoded);
+        assert!(crate::extract_raw_transaction_signature_from_binary_base64(trailing.as_str()).is_err());
+    }
+}