add test caser

fix ci

address review cmts

ci

addr review cmt

fix typo

address review cmts

add 2 more test cases

cpplint fix

addr cpplint

addr ci

fix tst case err

fix doc str

fixed random_apply tests

fix validators

fixed random_apply tests

fix engine validation

phase II vocab rework

added more test cases

fix api doc string

address review cmts and fix CI

address ci complains

fix review cmts

ci

fix complie error

more tests

address CI complains

fix ci

adress review comments

address review cmts