How can automated tests be created in AL to validate Business Central customizations before production deployment?

Learn how automated testing in AL can help Business Central developers validate customizations and reduce production deployment risks.

Explore test codeunits, test methods, test libraries, validation scenarios, and how automated tests can verify business logic and application behavior.
Understand how testing fits into Business Central development, ALM, CI/CD, and quality assurance practices.
An important topic for students and working professionals preparing for Business Central developer and technical consultant roles.