[Python-Dev] r87389 - in python/branches/py3k: Doc/library/unittest.rst Lib/unittest/case.py Misc/NEWS (original) (raw)

Antoine Pitrou solipsis at pitrou.net
Sun Dec 19 19:49:49 CET 2010

Le dimanche 19 décembre 2010 à 10:41 -0800, Guido van Rossum a écrit :

On Sun, Dec 19, 2010 at 5:13 AM, Antoine Pitrou <solipsis at pitrou.net> wrote: > On Sat, 18 Dec 2010 20:23:49 -0800 > Guido van Rossum <guido at python.org> wrote: >> I may be unique, but I fear there is no great answer. On the one hand >> I almost always code it as e.g. assertEqual(actual, expected), which >> matches my preference for e.g. "if x == 5:" rather than "if 5 == x:". >> On the other hand in those assert* functions that show a nice diff of >> two lists, when reading such a diff my expectation is that "old, new" >> corresponds to "expected, actual". Which then freaks me out until I >> realize that I coded it as "actual, expected"... And yet "expected, >> actual" still looks weird to me. :-( > > This could be nicely resolved by renaming the arguments "a" and "b", > and having the diff display "a, b". It's quite natural (both the diff > ordering and the arguments ordering), and they are consistent with each > other.

So 'a' stands for 'after' and 'b' for 'before', right? :-)

Ouch. I guess I don't natively think in English.

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