The Joel Test is sort of incorporated into Stack Overflow Jobs (previously Careers) in that a company has the option to include the results of their Joel Test when posting an ad on the site. However, there's no obvious way (at least that I could see) for a candidate to search for jobs that meet specific criteria in the test.

Also, the exact wording for the office part of the test is "Do programmers have quiet working conditions?" This usually means that working conditions might possibly be quiet if nobody else happened to be in the office at the same time as you. While many claim quiet working conditions, I've never seen one that actually provided private offices.

This is anecdotal of course, and just based on looking at photographs they've included on their website or Stack Overflow page, but every job I've viewed recently appears to have an open plan office. In some of the photos you even see people standing around having impromptu meetings in the middle of a group of desks where others are trying to work.

Remember this is just the companies that are actually claiming to provide programmers with quiet working conditions. I can't imagine what the noisy ones are like.