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.tables.each do |table|
        ActiveRecord::Base.connection.execute("TRUNCATE TABLE #{table};")
      end
    else
      ActiveRecord::Base.transaction do
        example.run
        raise ActiveRecord::Rollback
      end
    end
  end
end