var OldBox;
    var box = document.getElementById('box');
    var Parent = box.parentNode;
    var HTMLString = 'sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>s f</b>s df<p>df gsdfg sf g<b>'

Teardown JS

Test cases

Test #1

Title *

Async

Code *

box.innerHTML = HTMLString;
while (box.firstChild) {
  box.removeChild(box.firstChild);
}

Test #2

Title *

Async

Code *

box.innerHTML = HTMLString;
box.innerHTML = '';

Test #3

Title *

Async

Code *

box.innerHTML = HTMLString;
while (box.lastChild) {
  box.removeChild(box.lastChild);
}

Test #4

Title *

Async

Code *

box.innerHTML = HTMLString;
OldBox = box;
box = OldBox.cloneNode(false);
Parent.replaceChild(box, OldBox);

Test case details

Preparation Code

Test cases

Test #1

Test #2

Test #3

Test #4