lib/sec_id/sedol.rb in sec_id-3.0.0 vs lib/sec_id/sedol.rb in sec_id-4.0.0

@@ -4,21 +4,21 @@
   # https://en.wikipedia.org/wiki/SEDOL
   class SEDOL < Base
     ID_REGEX = /\A
       (?<identifier>[0-9BCDFGHJKLMNPQRSTVWXYZ]{6})
       (?<check_digit>\d)?
-    \z/x.freeze
+    \z/x
 
     CHARACTER_WEIGHTS = [1, 3, 1, 7, 3, 9].freeze
 
     def initialize(sedol)
       sedol_parts = parse sedol
       @identifier = sedol_parts[:identifier]
       @check_digit = sedol_parts[:check_digit]&.to_i
     end
 
     def calculate_check_digit
-      return mod_10(weighted_sum) if valid_format?
+      return mod10(weighted_sum) if valid_format?
 
       raise InvalidFormatError, "SEDOL '#{full_number}' is invalid and check-digit cannot be calculated!"
     end
 
     private