On Wed 22 Apr 2015 09:38:40 PM CEST, Eric Blake wrote: > You know, we should _also_ test a no-op stream, to prove that we > handle it correctly (we've had bugs in the past where 0-length active > commit behaved differently in the events it generated than non-zero > length), and your change is dropping that.
Well, we were checking that by accident :-) But yes, I get the point. I can add that test if a further patch. I also think that it would be a good idea to compare the actual contents (using qemu-img compare) rather than the list of allocated areas, which is what we're doing now. But that would require a more substantial modification of the test case. Berto