Why & When Regression Testing Should Be Performed

Software can be unpredictable. Sometimes the smallest code modifications affect the unchanged parts of the functionality and features that are supposed to work stop working. To prevent this from happening, QA specialists run regression testing.

WHY

Regression testing aims to verify that the implementation of new features and bug fixing haven’t caused any side effects on the functionality that used to work well.

WHEN

QA engineers should run regression tests for every new build after any modifications of a software product.

The Benefits of Regression Testing Services

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Ensures flawless functioning of core software features.
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Guarantees a better customer experience.
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Minimizes expenses by fixing bugs early.
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A perfect candidate for test automation.
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Builds confidence in overall software quality.

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Regression Testing Steps

As a rule, there is no need to run the complete regression check after every code iteration. In most cases, it is enough to test the basic features – installation and uninstallation, registration and logging in, connection with databases, etc.
The regression testing services takes around 30% of the time devoted to product testing and looks like this:

Bug verification

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We check whether the development team has fixed all of the previously reported defects.

Smoke testing

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Then, we examine the basic functionality. It is essential to make sure that bug fixing hasn’t broken anything.

Reporting

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You’ll receive a checklist with the features that have been tested during the regression.

Benefits of Automated Regression Testing

Regression is one of the best candidates for test automation. The regression testing suite is repetitive, and test scripts are reusable – these are the main preconditions for the automation. If you are looking for the reasons why it is a good solution for your product, here are some:
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Optimization of resources. Regression is a must for every build, and manual regression testing can require much time and effort.

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Acceleration of the testing process. We detect bugs early and, thus, minimize their harmful effect on the functionality.

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More confidence in the product. Reusing old scripts will help to make certain defects from previous builds haven’t popped up again.

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Fewer routine tasks. Scheduling tests at any time leaves QA engineers working on other tasks while a computer runs a checkup.

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Higher accuracy. Even the best minds can be tricked into missing a bug when they keep dealing with the same set of routine tasks. But computers don’t 😉

Learn more about regression testing services with QA Madness.

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