BusinessA Comprehensive Guide to Regression Testing 

A Comprehensive Guide to Regression Testing 

Regression testing is unique among software testing techniques in that it is an essential procedure. In regression testing, “regression” refers to going back to the earlier created code and “regressing” it to ensure that it has not been impacted by any recent updates, improvements, or new features added to the program. Regression test essentially ensures the general stability of the product by verifying that all current features continue to perform as intended throughout the face of changes.

Types of Regression Testing: 

  1. Unit Regression Testing: In order to test individual code segments without affecting any dependencies, this kind of testing isolates certain code segments.
  2. Partial Regression Testing: It happens when source code is altered to make sure the program continues to function as intended.
  3. Complete Regression Testing: This type of thorough testing is usually carried out right before a project’s release, at the last deployment step.
  4. Progressive Regression Testing: When new features are implemented, regression testing is done to make sure the code that already exists is unaffected.
  5. Selective Regression Testing: Regression testing of this kind “selects” only specific areas of a program to examine how new code affects already-written code.
  6. Re-test all: Every time an application’s current code is altered—for example, by an important update to the software or a platform switch—all test cases are redone using this kind of software testing approach.
  7. Corrective Testing: This kind of regression testing is the most basic. In the event where the initial source code has not been altered, it is utilized to test the functionality as it is.

Benefits Of Regression Testing: 

  1. Regression testing contributes to the software’s general stability. It ensures that features that have already been implemented continue to perform as intended in case that code is modified, avoiding unwanted failures or problems that can degrade the customer experience.
  2. Since it can be developed once and utilized again in subsequent years, automated regression testing is designed to be reusable. This eliminates the need for repetitive creation of the tests.
  3. Customers satisfaction rises when software is consistently trustworthy. Regression testing assists in avoiding circumstances in which customers suffer unanticipated faults or problems, therefore protecting your brand’s image and consumer confidence.
  4. Regression testing identifies the precise code modifications that result in a regression. This shortens the time needed for troubleshooting by making it simpler for engineers to locate and address the problem quickly.
  5. Regression testing reduces the risk that comes with upgrades or modifications to software. It acts as a layer of protection, lowering the possibility of releasing software that is flawed and requiring expensive bug updates and support for customers after it has been released.


In the end, regression testing is an essential component of the software development process that offers numerous benefits. By ensuring the stability of existing functionalities, maintaining code quality, and accelerating development cycles, it plays a pivotal role in delivering reliable software. 

Opkey greatly accelerates regression testing with its intuitive UI, strong automation testing without coding, and smooth integration. Opkey’s pre-built test accelerator repository contains more than 30,000 automated test cases. This instantly increases the regression test coverage from day one. This helps any employee to quickly create an automated regression test with minimum effort. Using Opkey, the regression testing time reduces by 68% and helps in achieving optimal test coverage.

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