So far as I am aware, standardized testing does not apply to history and other non-core subjects. Like science also, unfortunately. Everything outside the three Rs (reading, writing, 'rithmetic) is slashed, because that's what the tests target.
Here's a listing of the tests given in VA... http://www.doe.virginia.gov/testing/sol/released_tests/index...
The other unfortunate side of AP classes is that much of history classes is taught well before the AP class. I had 2.5 years of history in high school: One semester was a law education class, only offered to "advanced" students instead of geography (a real shame, as I think the class was one of the more helpful classes I took), one European history class, and one AP American History.
The American History class was the most interesting and probably the most free, actually. My particular class used a college-level book and the teacher would add in things that weren't covered by the book and she'd point out where the book might be misleading or wrong. That class was also where I was introduced to "The Jungle", "Grapes of wrath", and Malcolm X's biography.
I oddly don't remember as much about the actual test (it was 20 years ago), but it wasn't nearly the same as other standardized tests at the time. If I remember correctly, it was more based on thinking and processing history than memorizing facts.