Of course it's reasonable! (Score 1)

This isn't anything new, and it certainly isn't restricted to IT... I've been in engineering for going-on 10 years, and if my interviewer didn't ask me any 'test' questions, I'd be highly suspicious of the interview!

The most common thing that the interviewer is looking for is NOT necessarily coding conventions, or your ability to program in C++, Java, or whatever language you're dealing with. For almost all languages, there's at least one book out there that teaches syntax, and given that your interviewer knows you went to college, they know that you can read... so they're not going to care that much about syntax.

The ruling majority of the time, they're looking for problem solving abilities. So, if they ask you 'how would you do blah blah blah', respond with 'Would you like real code, or do you mind if I just use pseudo-code?' Their answer gives you insight into what they're looking for, and you can aim your response accordingly.

One of the most enjoyable interviews I'd ever had was at my current employer... the interviewer presented me with a simple engineering problem. Then, asked me to come up with as many solutions as possible... It was a great way for both of us to feel out the other, because they could see my problem-solving strategies, and I could see theirs (by coming up with a solution they hadn't thought of).