test: throw `ValueError` for invalid base58 checksum

contrib/testgen/gen_key_io_test_vectors.py

@@ -111,7 +111,7 @@ def is_valid(v):
     try:
         payload, version = base58_to_byte(v)
         result = bytes([version]) + payload
-    except AssertionError:  # thrown if checksum doesn't match
+    except ValueError:  # thrown if checksum doesn't match
         return is_valid_bech32(v)
     for template in templates:
         prefix = bytearray(template[0])

test/functional/test_framework/address.py

@@ -91,8 +91,8 @@ def base58_to_byte(s):
             break
     res = b'\x00' * pad + res
 
-    # Assert if the checksum is invalid
-    assert_equal(hash256(res[:-4])[:4], res[-4:])
+    if hash256(res[:-4])[:4] != res[-4:]:
+        raise ValueError('Invalid Base58Check checksum')
 
     return res[1:-4], int(res[0])