Add Cure.peace.pikarin_janken (singleton method)

lib/rubicure.rb

@@ -28,6 +28,25 @@ def self.method_missing(name, *args)
       super
     end
   end
+
+  [Cure.peace, Cure.cure_peace].each do |peace|
+    class << peace
+      HANDS =
+        (['グー']   * 13) +
+        (['チョキ'] * 14) +
+        (['パー']   * 15) +
+        ['グッチョッパー']
+      MESSAGE = <<EOF
+ピカピカピカリン
+ジャンケンポン！
+（%s）
+EOF
+      def pikarin_janken
+        print_by_line(MESSAGE % HANDS.sample)
+      end
+      alias janken pikarin_janken
+    end
+  end
 end
 
 module Shiny

spec/girl_spec.rb

@@ -157,4 +157,13 @@
       it { expect{ subject }.to raise_error NoMethodError }
     end
   end
+
+  describe "cure_peace#pikarin_janken" do
+    let(:girl){ Cure.peace }
+
+    it do
+      expect(girl.pikarin_janken).
+        to match %r/ピカピカピカリン\nジャンケンポン！\n（.+）/
+    end
+  end
 end