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Re^2: Testing: To Mock or Not to Mock?

by agianni (Hermit)
on Nov 09, 2007 at 14:17 UTC ( #649903=note: print w/ replies, xml ) Need Help??

in reply to Re: Testing: To Mock or Not to Mock?
in thread Testing: To Mock or Not to Mock?

I agree that exhaustive testing along those lines would be ideal, but it's not usually a reasonable option. My current project includes over 40k lines of Perl code and nearly that many lines of tests and I can't imagine how much more time it would take to implement full-stack integration testing.

I'm curious, though, about the value of integration testing to full depth. For example, if I have some code where sub A calls sub B, which in turn calls sub C, why do I need to test the full integration of these? Rather, why can't I just test the integration between A and B and the integration between B and C and suggest that I have testing the integration between A and C transitively? Might there really be situations where that would not suffice?

That said, backing up your mocking at least one level for the sake of integration does make a lot of sense, and I hadn't thought of it in such an specific manner before. Thanks for your input!

perl -e 'split//,q{john hurl, pest caretaker}and(map{print @_[$_]}(joi +n(q{},map{sprintf(qq{%010u},$_)}(2**2*307*4993,5*101*641*5261,7*59*79 +*36997,13*17*71*45131,3**2*67*89*167*181))=~/\d{2}/g));'

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