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How to Develop a Solid Regression Testing Strategies

DZone 's Guide to

How to Develop a Solid Regression Testing Strategies

and how to implement them!

· Performance Zone ·
Free Resource

Another activity that requires strategy.

Another activity that requires strategy.

Regression Testing

Regression testing is a process that continues throughout the life cycle of an application. When we talk about regression testing, our vision should ideally be focused on the long term goals that take into account the various aspects of software application sustenance.

Each time a new feature is developed, existing feature improved or any UI updates made, there is a need to perform a regression test to ensure that the changes do not impact the old functioning of the software.

Let us look at a few effective ways of creating regression test strategies that prove to be sustainable throughout the lifecycle of the application.

You may also like: 4 Practical Microservices Testing Strategies for Enterprises

Regression Test Strategy

Identify Needs and Components

The moment a single change takes place, regression tests should ideally be implemented. The motive is to join the modified pieces together to test with the existing code or functionality with the help of regression test scripts.

Define Requirements for Testing

A collaborative approach is needed to be established between business stakeholders, developers, and software test engineers in order to find out the right test cases for a project under operation. Hence a consensus is a must to decide upon the test cases that need to be prepared which could be reused each time there is a change in the application.

Entry and Exit Criteria for Regression Testing

Before beginning with the process of application testing, there should be few criteria that must be defined, so that the test objectives are in sync with the project requirements. The entry criteria can be understood as the elementary requirements that should be present, to begin with, the process of testing.

Follow a Schedule

Last but not least, once the aforementioned steps have been completed and the regression tests have undergone the necessary steps, the final step is to create a testing schedule. This is the time to decide the duration and the intervals in which unit tests shall run for the components to be tested.

Regression Test Selection

  • Define the automated test cases for repeated tests as well as the timings required to implement those tests.
  • The underlying logic for implementing tests should be to build a strong platform on which test cases shall run for effective bug detection.
  • To achieve efficiency, test cases should be reusable.
  • Test cases must be categorized, that is, whether they fall under obsolete or reusable code or tests.
  • It is advisable that the testers decide upon the scope of change in a project to assess the amount of work that needs to be done for a given project.

Code Review

  • Once the test scripts are ready, it is time for code review to ensure that the code serves the purpose for which it has been designed.
  • A code review process should ideally be a collaborative effort of developers and QA engineers as that would lead to better results.
  • Conducting a walkthrough in the code review process leads to analyze high-risk areas and work towards rectifying them.

Metrics Monitoring

  • Monitoring deviations in code through repeated tests is the major motive behind regression tests, therefore the metrics in this regard would be code efficiency, coverage in previous tests and the degree to which previous development and testing efforts have been integrated.
  • The term ‘metrics monitoring’ thus refers to the process of analysing the efficiency of tests being done.

Conclusion

Regression test strategy must, therefore, be calculated on the basis of the span of audience an application covers, the extent of complexity it involves in terms of change in feature and verifying the changes, number of QA engineers who initially worked on the project and how to execute the work in the long run, are some major considerations that should be planned well in advance.

Therefore regression test scripts should be written in such a manner so as to align every feature change.

Further Reading


Defining a Test Strategy for Continuous Delivery


Adding Exploratory Testing to Your Testing Strategy

Topics:
quality assurance ,software testing ,software testers ,regression testing ,regression test automation ,performance ,tutorial

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