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I have two data structures with a mix of hashes and arrays. How can I compare the two data structures and return their differences, something like perl’s Test::Harness module, but I don’t want to actually run a unit test. …or is there a way to tun Test::Harness without actually running a unit test?
Perl Monks says that Test::Deep, Data::Compare, and Data::Match are your friends. Those packages don’t seem to be geared towards producing detailed diffs but you might be able to hack in a callback to keep track of the precise differences.