Re: Does Data::Dumper give you eye strain? Use Test::More::is

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Re^2: Does Data::Dumper give you eye strain? Use Test::More::is_deeply() for debugging! by ChemBoy (Priest) on Jul 20, 2005 at 20:37 UTC
I'm not sure I quite agree that is_deeply doesn't do a deep comparison at all, though I agree that it has a quirk or two. But more to the point, what does Test::Struct offer that Test::Deep doesn't? Not meant rhetorically, I'm just curious, since they both seem to have the same basic goal. If God had meant us to fly, he would never have given us the railroads. --Michael Flanders	[reply]
Re^3: Does Data::Dumper give you eye strain? Use Test::More::is_deeply() for debugging! by demerphq (Chancellor) on Jul 20, 2005 at 23:59 UTC
I think I should leave that up to Fergal to answer, however its my understanding that what T::S does is different from what T::D does (I know for sure that the latter is considerably more flexible and attempts to solve problems that T::S doesnt and never will). Test::Struct was simply my attempt at making an is_deeply() that worked the way I expect it to. To save you reference to some very long and nasty perl-qa threads I'll simply say that as the author of the most accurate Perl Data serialization module currently on CPAN I found every other tool for testing insufficient for my purposes. Test::Struct is/was a prototype I wrote for the kind of testing I wished had been around for Data::Dump::Streamer. Some argue that this level of accuracy is only really useful for testing serialization modules but whatever. Anyway i wrote T::S just before i went on holiday (which im still on) so its in an alpha state right now, somethiong i plan to resolve when i return. --- $world=~s/war/peace/g	[reply]
Re^3: Does Data::Dumper give you eye strain? Use Test::More::is_deeply() for debugging! by fergal (Chaplain) on Jul 21, 2005 at 00:12 UTC
TS is the strictest possible comparison that doesn't involve comparing reference addresses, so if `$x=[];$y=[]` then TS will say that `[$x,$x]` is not the same as `[$x,$y]` because one is an array with 2 refs to 1 array and the other has refs to 2 different arrays. This is a valid difference. TD ignores this difference. TD also lets you do something a little bit like regular expressions for data structures.	[reply] [d/l] [select]