spec_helper.rbの中でRSpec.configure を呼び出している場合、 以下のような警告が出てくることがあります。 1 ****************************************************** 2 DEPRECATION WARNING: you are using deprecated 3 behaviour that will be removed from RSpec 3. 4 5 You have set some configuration options after an 6 example group has already been defined. In RSpec 3, 7 this will not be allowed. All configuration should 8 happen befor