Override CONNPASS_API_KEY as DUMMY in test env to avoid calling APIs by mistake

Author: yasulab

spec/rails_helper.rb

@@ -1,5 +1,6 @@
 # This file is copied to spec/ when you run 'rails generate rspec:install'
 ENV['RAILS_ENV'] ||= 'test'
+ENV['CONNPASS_API_KEY'] = 'DUMMY_CONNPASS_API_KEY'
 require File.expand_path('../../config/environment', __FILE__)
 # Prevent database truncation if the environment is production
 abort("The Rails environment is running in production mode!") if Rails.env.production?