spec_helper.rb

RSpec.configure do |config|
  config.around do |example|
    # For examples using capybara-webkit for example.
    # Remove this if you don't use it or anything similar
    if example.metadata[:js]
      example.run

      ActiveRecord::Base.connection.execute("TRUNCATE #{ActiveRecord::Base.connection.tables.join(',')} RESTART IDENTITY")
    else
      ActiveRecord::Base.transaction do
        example.run
        raise ActiveRecord::Rollback
      end
    end
  end
end