my sister and a friend made me take this test and it's without a doubt the most accurate personality test I've ever taken online. It was also perfectly accurate for my sister and friend. If anyone wants to check it out:
http://www.16personalities.com/
Please share your result.
Don't forget to read the whole description about your personality type (kinda long but worth it) by clicking here:
http://www.16personalities.com/personality-types
PS: I got ISFJ "The Defender"