career? の実行結果

voda = Jpmobile::Mobile::Vodafone.new({})
  #=> #<Jpmobile::Mobile::Vodafone:0xb7bc0f18 @request={}>

voda.softbank?
  #=> true

voda.vodafone?
  #=> true

voda.jphone?
  #=> false



jphone = Jpmobile::Mobile::Jphone.new({})
  #=> #<Jpmobile::Mobile::Jphone:0xb7ba3d28 @request={}>

jphone.softbank?
  #=> true

jphone.vodafone?
  #=> true

jphone.jphone?
  #=> true