I'm not a lawyer, but my understanding is that even small snippets of licensed code can be problematic. I don't know exactly what the cutoff is, but when I tried Copilot it often suggested to auto complete snippets of code that were long enough that if I was intentionally coping them from a licensed codebase, I would handle the license. I'm not talking about whole giant functions, but small functions or large chunks of a function.
It is true that more commonly it suggested at most a few lines of obvious code which could really only be written the way it suggested, but a number of people in the comments on this article mentioned using Copilot to come up with test cases, so I think people are actually using it to suggest larger snippets of code.
It is true that more commonly it suggested at most a few lines of obvious code which could really only be written the way it suggested, but a number of people in the comments on this article mentioned using Copilot to come up with test cases, so I think people are actually using it to suggest larger snippets of code.