Open Question: does blockbuster drug test?

my friend is the manager at blockbuster in manahtten beach, CA. he said that he will hire me once i turn 18, he wont hire me if he finds out i smoke. im not a pot head cuz i haven't smoked much maybe only about 6-8 times in the past two months. i stopped smoke'n last week cuz i will turn 18 in a month, so he will probably interview me around then. i know i can pass the urine test, but im not sure about the hair follicle drug test. i was wondering if blockbuster does drug tests? if so, what kind? or is there a chance i will be able to pass the hair test without having to buy some kind of shampoo? should i just wait two more months?