run_test

# File activesupport/lib/active_support/testing/performance.rb, line 55
        def run_test(metric, mode)
          run_callbacks :setup
          setup
          metric.send(mode) { __send__ @method_name }
        rescue ::Test::Unit::AssertionFailedError => e
          add_failure(e.message, e.backtrace)
        rescue StandardError, ScriptError
          add_error($!)
        ensure
          begin
            teardown
            run_callbacks :teardown, :enumerator => :reverse_each
          rescue ::Test::Unit::AssertionFailedError => e
            add_failure(e.message, e.backtrace)
          rescue StandardError, ScriptError
            add_error($!)
          end
        end