Developers building cloud-native applications often face challenges with inconsistent testing environments, which can impact the speed and quality of software delivery. Utilizing GitHub Actions, a native CI/CD tool, in combination with open-source tools, can streamline the integration and testing process by automating workflows and ensuring accountability for updates and bug fixes. Actions can be triggered by various GitHub events and serve as status checks to block merges if tests fail, enhancing transparency and reliability in the development process. The GitHub Marketplace offers a range of community-powered, pre-built Actions to further customize automation workflows. Testing Kubernetes applications can be facilitated using "kind" (Kubernetes in Docker), which allows developers to run local Kubernetes clusters using Docker nodes without the need for a full Kubernetes environment. This approach, combined with the GitHub Marketplace and Actions, provides a consistent and rigorous testing process essential for cloud-native application development, as demonstrated during GitHub Demo Days.