Background:
I am a certified teacher public school Washington State. 
In order to get endorsed in a subject (math, English, Spanish?) you
have to take pre-determined classes and pass the accompanying part of
a test called the Praxis.
The Praxis testing wasn't a requirement for getting your endorsement
in the past, this changed in the last couple years.
The powers that be, are saying that you need to take and pass the
classes then be tested in order to prove what you know to get the
endorsement.

Say I want to teach Spanish, you take documented classes at a state
university, pass the classes, take a Praxis Spanish test, pass this
test then get a Spanish endorsement.
I have heard of people coming into teaching with experience or prior
knowledge taking the Praxis test and then getting a Spanish
endorsement.

My question:
I want to know if there is a loop-hole in the system that will allow
for someone to pass a specific Praxis test, without the prior
documented classes and get that endorsement?

Note:
I have asked this question to many different people that are ?in the
know? and they? changed the subject. I am thinking the answer is yes.
But I want to know for sure.

challenge the exam?

There is something called the "Alternative Routes Program":
http://www.pesb.wa.gov/AlternativeRoutes/AlternativeRoutes.htm

The site may take a while to open completely.  Scroll down to the
bottom for an explanation of the program, and then click on links for
details to programs offered.

I found this as a link from this site:
http://www.k12.wa.us/certification/teacher/teacherinformation.aspx

Here is the site about Praxis II:
http://www.ets.org/portal/site/ets/menuitem.c988ba0e5dd572bada20bc47c3921509/?vgnextoid=3d7baf5e44df4010VgnVCM10000022f95190RCRD&vgnextchannel=d378197a484f4010VgnVCM10000022f95190RCRD

Well, you can find it with a search for:  praxis ii