I like this approach the most. Evaluate code that they've already written, maybe make sure that they can solve a similar problem to make sure they actually unde

I like this approach the most. Evaluate code that they've already written, maybe make sure that they can solve a similar problem to make sure they actually understand what they did and didn't pay someone else to do it, and then a personality fit. Chances are if they really wanted to be hired to learn how to program they're aware of the importance of contributing to open source.