assert_nothing_raised

# File lib/test/unit/assertions.rb, line 288
      def assert_nothing_raised(*args)
        _wrap_assertion do
          if Module === args.last
            message = ""
          else
            message = args.pop
          end
          exceptions, modules = _check_exception_class(args)
          begin
            yield
          rescue Exception => e
            if ((args.empty? && !e.instance_of?(AssertionFailedError)) ||
                _expected_exception?(e, exceptions, modules))
              assert_block(build_message(message, "Exception raised:\n?", e)){false}
            else
              raise
            end
          end
          nil
        end
      end