tionSequence.clear();
test(function() {assert_equals(animationSequence.children.length, 0)},
     "Parent's children should be cleared");
test(function() {assert_equals(child.parent, null)},
     "Child's parent should be cleared");
test(function() {assert_equals(sibling.parent, null)},
     "Sibling's parent should be cleared");

</script>
