Importance of Running Automated Tests After Each Build

Automated tests play a critical role in ensuring that each build of the software is stable and free from regressions. Running these tests immediately after every build helps to catch potential issues early, maintaining the quality and reliability of the product.

Exam Question

Is it a good idea to follow each automated build with the execution of automated tests?
(choose the best answer)
A. No. Automated tests should only be executed when the implementation of a Product Backlog item is complete.
B. No. It would take too much time.
C. Yes. The tests may identify whether there are problems that the Developers should fix before proceeding.
D. Yes. Code coverage can be used to assess progress.

Correct Answer

C. Yes. The tests may identify whether there are problems that the Developers should fix before proceeding.

Explanation

Correct Answer

C. Yes. The tests may identify whether there are problems that the Developers should fix before proceeding:
Running automated tests after each build is an essential practice in modern software development. These tests help to quickly identify any issues or regressions introduced by recent changes. By catching problems early, Developers can address them before they become more significant, ensuring that the code remains stable and reducing the risk of defects making it to production.

Why the Other Options Are Less Appropriate

A. No. Automated tests should only be executed when the implementation of a Product Backlog item is complete:
Waiting until a Product Backlog item is fully implemented before running tests increases the risk of overlooking issues early in the process. Continuous testing is crucial to maintaining high code quality throughout the development cycle.

B. No. It would take too much time:
While running tests after each build does add time to the development process, it is a valuable investment. The time spent on testing is offset by the time saved in identifying and fixing issues early, preventing costly defects later in the project.

D. Yes. Code coverage can be used to assess progress:
While code coverage is an important metric, it does not directly indicate the presence of problems in the code. Running automated tests is necessary to uncover issues, regardless of the code coverage percentage.

Relevance to the PSD Exam

Understanding the value of running automated tests after each build is crucial for the PSD exam. It emphasizes the importance of maintaining continuous integration practices and ensuring the stability and quality of the software throughout the development process.

Key Takeaways

• Continuous testing after each build helps catch issues early, maintaining code stability and quality.
• Automated tests are an integral part of the build process, preventing defects from progressing through the development pipeline.

Conclusion

Running automated tests immediately after each build is a best practice that helps identify and fix issues early in the development process. This approach ensures that the software remains stable and high-quality throughout its lifecycle. For more information on preparing for the PSD exam, visit our Professional Scrum Developer PSD™ Exam Prep.