Note that the equivalent to state vars is my $_cached = ..., not our $_cached = ..., so you are really comparing apples and oranges.
But the problem is really something else: caching a value that depends on another value without taking this dependency into account is a bug, and unit testing simply exposes this bug. If you do the caching via state variables or not is really secondary. (And if the caching does not depend on a different value, then I don't see the problem for unit testing).
Update: I should say that state holds global state (but hey, its name even suggests that it holds state :-), even though access to it isn't global. So it should be used with care.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||