Update to Jest 27
mgwalker opened this issue · comments
Some breaking changes in Jest 27 mean we need to tweak our tests before we can upgrade. But Jest 27 offers more complete timer mocking, which might mean being able to remove sinon as a dependency, since that's primarily what we use it for. (I do love sinon, but since Jest provides a lot of the mocking behavior we need, I don't see any reason to keep it "just because.")