This article highlights the importance of automated testing for the success of Continuous Integration and Continuous Delivery (CI/CD). Automated testing brings speed, efficiency, and quality assurance to the CI/CD process. It provides immediate feedback, detects issues early, and ensures the scalability and maintainability of testing. Automated regression testing helps prevent regressions, while continuous improvement is facilitated through test metrics and analysis. By integrating automated testing into CI/CD, development teams can achieve faster delivery, higher software quality, and improved customer satisfaction.