You promise you're not the type? You make it seem like people who smoke weed are bad.. If anything you should stand up for yourself and your privacy and refuse the drug test
. I would never work for a company that digs that deep into my privacy - it's insulting and discriminatory. Marijuana is much safer than consuming alcohol, so ask them if they also drug test for alcohol, and if they don't that they should test for that first before testing for a less harmful, natural drug such as marijuana.
If anything, people who enjoy marijuana are nicer, smarter, and more fun to be around as they aren't afraid of trying new experiences. After all, life is about experiences and marijuana is definitely one to enjoy.