In the continuation of the "Enterprise CI/CD best practices" series, several key practices are emphasized to enhance software development workflows. Automating all tests is crucial to ensure confidence in new releases, minimizing manual testing to speed up deployments. Fast test execution is vital, ideally completing within 5-10 minutes, to maintain developer efficiency and focus. Tests should self-clean their side effects, enabling parallel execution and reducing dependencies on shared environments. Diverse test suites should be employed throughout the CI/CD pipeline, with the flexibility to select appropriate tests for different phases. Dynamic test environments allow for on-demand testing, eliminating bottlenecks associated with static staging setups. Concurrent test suite execution is encouraged to optimize time and accuracy. Security and quality scans should be integrated into the development process from the start, particularly at the pull request level, to address vulnerabilities and maintain code quality proactively.