lib/convenient_service/examples/standard/factorial/services/calculate.rb in convenient_service-0.13.0 vs lib/convenient_service/examples/standard/factorial/services/calculate.rb in convenient_service-0.14.0

@@ -1,25 +1,31 @@
 # frozen_string_literal: true
 
+##
+# Usage example:
+#
+#   result = ConvenientService::Examples::Standard::Factorial::Services::Calculate.result(number: 10)
+#
 module ConvenientService
   module Examples
     module Standard
       class Factorial
         module Services
           class Calculate
             include ConvenientService::Standard::Config
+            include ConvenientService::AwesomePrintInspect::Config
 
             attr_reader :number, :timeout_seconds
 
             def initialize(number:, timeout_seconds: 10)
               @number = number
               @timeout_seconds = timeout_seconds
             end
 
             def result
-              return failure(number: "is `nil`") if number.nil?
-              return failure(number: "is NOT an integer") unless number.instance_of?(::Integer)
-              return failure(number: "is lower than `0`") if number < 0
+              return error("is `nil`") if number.nil?
+              return error("is NOT an integer") unless number.instance_of?(::Integer)
+              return error("is lower than `0`") if number < 0
 
               return error("Timeout (`#{timeout_seconds}` seconds) is exceeded for `#{number}`") if factorial.timeout?
 
               success(factorial: factorial.value)
             end