SDET Interview Questions and Answers
Ques 26. Explain the concept of 'continuous testing' and its benefits in the software development lifecycle.
Continuous testing involves running automated tests throughout the software development lifecycle to obtain rapid feedback on code changes. It ensures early detection of defects, reducing the overall cost of fixing issues.
Example:
Running automated tests on each code commit in a continuous integration pipeline.
Ques 27. How do you handle test data dependencies in automated testing?
Isolating test data dependencies by using techniques like database transactions or creating dedicated test data sets helps maintain consistency and repeatability in automated tests.
Example:
Using a test database with predefined data for executing automated tests.
Ques 28. What is the purpose of 'assertions' in automated testing, and how are they used?
Assertions are statements that verify expected outcomes in automated tests. They help validate whether the actual results match the expected results, identifying test failures.
Example:
Asserting that the calculated result in a test matches the expected value.
Ques 29. Explain the concept of 'code smell' in test automation.
Code smells refer to symptoms in the source code indicating potential issues. In test automation, code smells may include duplicated code, overly complex tests, or poor organization.
Example:
Identifying and refactoring duplicated code in a test automation project.
Ques 30. How can you handle long-running tests in a continuous integration environment?
Optimizing test execution time, parallelizing tests, and prioritizing critical tests help manage long-running tests in a continuous integration environment, ensuring faster feedback.
Example:
Running tests in parallel on multiple test agents to reduce overall execution time.
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