The author shares a story about testing a module against a third-party web API without leaking sensitive authentication tokens.
To ensure the module works as intended without requiring an active network connection, mocking the service is essential.
Different mocking approaches in Perl are discussed, with an emphasis on using LWP::UserAgent::Mockable for testing web services.
Tips are provided on handling authorization tokens securely, scrubbing sensitive data from mock files, and setting up Git commit hooks for automated checks.