This test compares performance of following operations.
To check the complexity of the querySelectorAll(), this test shows how the
performance changes as the tree size changes. Tree will grow from
to (including the tree
root) in increment of . For each step of tree
grow, the operations will be called times
to get average performance of each operation. To remove outliers, the average
calculation will be repeated times and
. So each operation will be called
times per each step of tree growth. Due to this
iteration, this test will take some time.