capybara_macros.rb

module FeatureSpecMacros
  module ExampleMethods
    def successfully_visit(path)
      visit path
      successfully_on path
    end

    def successfully_on(path)
      expect(page.current_path).to eq(path), "Expected: #{path} URL\nGot #{page.current_path}\n\nPage source:\n\n#{page.html}"
      expect(page.status_code).to eq(200), "Expected: 200 status code\nGot #{page.status_code}\n\nPage source:\n\n#{page.html}"
    end
  end
end

spec_helper.rb

RSpec.configure do |config|
  config.include(FeatureSpecMacros::ExampleMethods, type: :feature)
end