rspec_misc_helpers.rb

module Capybara
  class Session
    def has_flash?(kind, msg)
      within ".alert-#{kind}" do
        has_content?(msg)
      end
    end
  end
end

module CapybaraHelpers
  def table_row_matching(content)
    content_matcher = content.is_a?(String) ? /#{content}/ : content
    match = all('table tbody tr').select do |row|
      content_matcher =~ row.text
    end
    raise "Can't find row matching \"#{content}\"" unless match.first
    match.first
  end

end

RSpec.configure do |config|
  config.include CapybaraHelpers, type: :feature
end