# File lib/test/unit/assertions.rb, line 266
      def assert_raise(*args, &block)
        assert_expected_exception = Proc.new do |*_args|
          message, assert_exception_helper, actual_exception = _args
          expected = assert_exception_helper.expected_exceptions
          diff = AssertionMessage.delayed_diff(expected, actual_exception)
          full_message = build_message(message,
                                       "<?> exception expected but was\n<?>.?",
                                       expected, actual_exception, diff)
          begin
            assert_block(full_message) do
              expected == [] or
                assert_exception_helper.expected?(actual_exception)
            end
          rescue AssertionFailedError => failure
            _set_failed_information(failure, expected, actual_exception,
                                    message)
            raise failure # For JRuby. :<
          end
        end
        _assert_raise(assert_expected_exception, *args, &block)
      end