"LI, BO XUAN" <liboxuan@xxxxxxxxxxxxxx> writes: > Thanks for your review! I can understand your point, but I've got a > quick question: > > What if format-patch really breaks and 'am' magically does not break? Doesn't that indicate that you are not testing the result of "am" adequately? I am not saying it is *wrong* to split the pipe into two. I am merely saying that it is borderline Meh, as the primary point of these two tests are to see how the command downstream of the pipe behaves and not the upstream one.