We can use Jagacy along with testing frameworks like Cucumber in Agile software development to automate acceptance criteria for mainframe user stories involving green screen interaction. These tests can be integrated into CI/CD pipeline and run in headless mode (Jagacy provides an Emulator screen mode or headless mode).
I often get questions around mainframe automation using Selenium. However, Selenium automates browsers, and that's it. Selenium does not automate mainframe green screens. It's a completely different technology.
Automating mainframe green screens is primarily needed to test front to back scenarios in complex transaction processing systems with web and mobile integration.
However, there are tools available that can be used to automate mainframe green screen interaction. In this post, we will see how to use Jagacy3270 from Jagacy Software along with Cucumber for writing automated Acceptance tests on mainframe green screens (also known as CICS interface).