The squad announcement has been delayed because of injury and form problems.
Experienced all-rounder Mohammad Hafeez has a hand injury and left-armer Junaid Khan damaged his knee during the one-day series which Australia won 3-0.
Long-serving captain Misbah-ul-Haq opted to miss the final one-dayer against Australia in Abu Dhabi because of his poor form.
Pakistan A will play a four-day tour match against Australia before the first test begins on Oct. 22.
Pakistan have five back-to-back tests against Australia and New Zealand in the United Arab Emirates.
“The delay in announcing the test squad has been forced on us owing to injuries to a bunch of frontline players and with a view to field the best possible team, the selectors would like to wait for an update on their fitness,” Pakistan’s chief selector Moin Khan said in a statement- Reuters