Developing for testability
Agile software development focuses on rapid tests and learns cycles implemented with repeatable and automated testing. Therefore, designing systems for testability is critical. A fully automated regression test pack helps developers fearlessly make changes to code since automated testing can discover faults as early as possible in the delivery cycle before interrupting customers' services.
Testability refers to the ability to test application code, preferably in an automated form. Testability and automatability enable faster feedback cycle time, reduce rejections, and minimize the number of faults in production. Let's see how this works with the TDD approach.
Test-driven development
Test-Driven Development (TDD) is a software development approach that advocates writing test cases before code. The code is written against pre-created test cases, which represent scenarios of customers' needs. The red-green-refactor approach is typically...