ASA test prep....Provides this, I have just done it.
Open the first page of the test prep book, there will be 25 digit code printed on the book , take this code and go to prepware.com
You will need to pass 2 tests, once passed these tests , they will issue you a FAA sign off for your logbook, just print it and take it with you.
If your book is second hand you can buy these tests and sign off here ....
http://www.asa2fly.com/Prepware-Prac...-P876C460.aspx