An Expert Guide On Regression Testing
                     
PowerPoint Presentation



An Expert Guide On Regression 
Testing


A software regression is any undesired variation that
occurs from code changes. Let just take an example of this
is you take your vehicle to a mechanic shop to get the air
conditioning repaired, and when you get it back, the air
conditioning is repaired but now the gas tank sensor stops
working. Bummer.

In software, a regression can occur after a new feature is
completed. Let’s say an email photo sharing service
introduces video adaptability, but after the ability is
released, the primary function of sharing photos to a set
group of email addresses is completely broken.

Given that a regression is an unintended change, then
regression testing is the method of hunting for these
changes.

Automated regression testing is a crucial part of
improving software quality, and having an effective plan in
place is a great idea to reduce software error throughout
the software development process.


Best Practices/Strategies For Regression Testing

• Tightly link the regression testing with functional testing & build the regression tests out of successful test cases created & 
applied during the functional testing.

• We require identifying the application areas identified to have the high rate of failures & include more regression tests in 
them.

• Depending upon the risk factors across the business, we can design the regression test suite. It has been seen that there 
are specific kinds of failures, which are not expected, but whenever they occur, they leave the serious impact on the 
business process.

• For smaller projects, do regression testing after every successful compile or at least once in a week. 


Benefits Of Regression Testing

Saves Both Time and Cost

A number of reports have highlighted how Selenium is efficient in cutting down Regression Testing services time by 92%.
Along with decreasing regression testing time essentially, an industry can further use Selenium to shorten release cycles and
reduce test cycles.


Easy To Maintain And Reuse Tests

Most of the enterprises use test automation tools to reuse and change test cases without any trouble. Selenium 
improves the reusability of testing cases. 


Supports All Programming Languages

Similar to influential operating systems and web browsers, Selenium also helps a large number of
programming languages like Java, C#, Python, and Ruby.

The feature makes the tool effective in testing all kinds of web application despite the programming language
used by code writers.


Optimize & Maintain the Regression Test Suites: Optimizing and maintaining the regression test 
suites are really important and by following these steps you can reduce the time and cost of creating as well.

• Metrics analysis
• Regular screening
• Periodic clean-up
• Monitoring changes
• Regression test selection
• Regression test tracking mechanism


Analyze The Bug Reports In Detail

By using latest regression testing tools, the error reports can be easily created as these tools have integration
with the error tracking tools. Also, it is simple to capture the screenshots while performing the regression tests
which further helps us to determine the bug reports in detail.


Prepare For The Impact Of New Changes

Regression testing makes sure that a new change in the already existing application does not break its bug-free
application functionality. The modifications to the application can be the integrations between various systems,
sub-system or modules. In order to develop an adequate regression testing plan, we require to be well prepared
for the consequences like uncertain and undefined bugs, the new changes can bring.