Testing Mistakes to Watch Out For

Arunakar Kumar
Deutsche Telekom Digital Labs
4 min readMay 2, 2024
Software testing mistakes

Software testing is the process of finding bugs or discrepancies in software. It is a process put in place to check that an application, set to be released in the market for users, has a minimum number of errors.

Even though the job of a software tester is to catch errors committed by developers, software testers themselves are not immune to errors. As a beginner in software testing, you would make your own mistakes and learn from them to shape your career path.

Following are a few common mistakes often made by software testing beginners when they start their journey in the world of testing.

A few Common Testing mistakes are:

a. Incomplete Test Coverage: Failing to cover all the necessary test scenarios, leading to untested parts of the software.

Resolution: Create test plans that should cover different aspects, such as functional, non-functional, and edge cases. Test cases should be executed throughly to cover all the parts of code. Use requirement documents for full coverage.

Benefits: Test Coverage will help to remove bugs, errors, and ambiguity early in the development life cycle. It will help to find hidden/uncovered areas and requirement.

b. Neglecting Test Planning: Skipping or rushing through the test planning phase, can result in inefficient test execution.

Resolution: A well-structured test plan that includes objectives, scope, resources, schedules, and deliverables. Ensure that all stakeholders are involved in the planning process. Try to cover all the possible scenarios of application in the test planning.

Benefits: Test planning would help to decide the roadmap in the testing process. It will reduce unnecessary testing scenarios.

c. Not Early Testing: Delaying testing until the later stages of development, makes it more challenging to identify and fix defects.

Resolution: Implement shift-left testing by starting testing activities early in the development process. This includes unit testing, code reviews, and continuous integration. It will be cost saving, low risk, faster to the market, and increase the confidence in software.

Benefits: Early testing helps to find the common mistakes made by developers. It will reduce the testing and development costs. It will also reduce the chances of bug outbursts.

d. Poor Test Data Management: Neglecting the management of test data can lead to inaccurate and incomplete test results.

Resolution: Create a robust test data management strategy. Use data masking to ensure data privacy and quality. Try to use the actual user use cases data.

Benefits: Test data management will uplift the test quality. It will reduce the chances of security issues. It will also help in reducing the re-work due to poor test data.

e. Ignoring Regression Testing: Not performing regression testing after code changes, which can lead to the reintroduction of defects.

Resolution: Implement automated regression testing to ensure that existing functionality remains intact after code modifications. Regularly update and expand regression test suites. Regression testing will help to make a stable application.

Benefits: Regression testing helps to maintain the integrity and reliability of the software throughout the development process. It will ensure the existing functionality remains intact and bugs are caught early.

f. Overlooking Non-Functional Testing: Focusing solely on functional testing while neglecting non-functional aspects like performance, security, and usability.

Resolution: Include non-functional testing in your test strategy to ensure that the software meets performance, security, and user experience requirements. Testing only Functional part will not cover all the possible scenarios. We should must implement non-Functional part in our test cases.

Benefits: Non-functional testing helps improve performance and it is less time consuming. Non-functional testing checks how user-friendly the software is for the users.

g. Defect Reporting: Providing vague or incomplete defect reports that make it difficult for developers to reproduce and fix issues.

Resolution: Clearly document defects with steps to reproduce, expected results, actual results, and any relevant system information. Use a standardized defect tracking system.

Benefits: The defect Report helps to determine whether the product is ready for release or not. It shows the current status of the project and the quality of the product.

h. Ignoring Usability Testing: Neglecting usability testing can result in user-unfriendly software, leading to poor adoption and customer dissatisfaction.

Resolution: Incorporate usability testing in your test plan to evaluate the user experience. Collect feedback from end-users when possible. Try to implement these feedback in the test.

Benefits: Usability testing helps to save a lot of time and resources. It allows us to uncover user pain points that would enhance the user experience. It will help in building user trust and loyalty

i. Neglecting Test Documentation: Skipping the documentation of test cases and results can make it challenging to track testing progress and reproduce results.

Resolution: Create and maintain test documentation, including test cases, test scripts, and test results. This documentation aids in traceability and future reference.

Benefits: Test documentation acts as a reference for future projects. It helps testers to perform analysis based on records. It delivers early-stage feedback on the software. It offers complete transparency between the stakeholders.

j. Not Enough Questions: Instead of clarifying the doubt, going with the assumption is risky for software development.

Resolution: There should be effective communication between the team. Regular meetings, requirement clarification, and share the information about testing process and challenges will help to metigate the risk.

Benefits: Asking all the doubts in the testing phase helps to reduce the number of issues or bugs. It will help in making software good in quality.

By avoiding the common mistakes stated above, and implementing best practices, the testing team can help the development of high-quality software in the software development process.