spec_helper.rbに以下を記述
spec/spec_helper.rb(1)
require 'capybara/rails'
require 'capybara/rspec'
spec/spec_helper.rb(2)
RSpec.configure do |config|
config.include Capybara::DSL, :type => :request
config.include Capybara::RSpecMatchers, :type => :request
:
end