lib/codebreaker/validation.rb in codebreaker_dmitriev-0.2.1 vs lib/codebreaker/validation.rb in codebreaker_dmitriev-0.2.2

@@ -1,15 +1,17 @@
 module Codebreaker
   module Validation
+    VALID_DIFFICULTS = %w[easy medium hell]
+
     def name_valid?(name)
       name.length.between? 3, 20
     end
 
     def guess_valid?(guess)
       /^[1-6]{4}$/.match? guess
     end
 
     def difficult_valid?(level)
-      !Constants::DIFFICULTS[level.to_sym].nil?
+      VALID_DIFFICULTS.include? level
     end
   end
 end