xt.', child3);

            assert(container.childNodes.length === 4);
            assert(container.childNodes[1] === child1);
            assert(container.childNodes[2].nodeType === Node.TEXT_NODE);
            assert(
              container.childNodes[2].textContent === 'This is some text.'
            );
            assert(container.childNodes[3] === child3);
          });
        });
      });
    </script>
  </body>
</html>
