What are some good Perl debugging methods?

Question

Are there other ways for debugging Perl programs apart from Data::Dumper and perl -d?

Answer 1

Test::More for writing basic tests, Hook::LexWrap, Test::MockObject, Test::Deep, Test::MockTime, Test::WWW::Mechanize and many others for advanced tests.

Attribute::Signature for checking sub parameters. Carp::Assert for contract-based programming.

Devel::Ebug::Wx or Devel::ptkdb (and soon better support in Padre) can be used for easier debugging.