Is regression testing the same as UAT?
Recently, I was asked if regression testing is the same as UAT (user acceptance testing). Regression testing and UAT are definitely different things, but I'd be surprised if most developers really understand that. And of course a lot of people reading this won't have heard of UAT.
Can someone confirm that for me? I know there are lots of variations on UAT. Perhaps the difference is between UAT and internal acceptance test, or UAT and external UAT? The context of this question is a company where all testing is handled by one team in a large software house. But there is a dedicated development team that doesn't do much testing, but handles regression testing.
Regression Testing is testing after the product has been released, which should be able to handle an expected set of cases, while User Acceptance Testing (UAT) is testing during the product development process, which would not necessarily be concerned with all possible use cases. A company does not need a UAT team if they do regression testing. This will be a waste of resources.
The term 'regression testing' comes from the days before automation, when the only way to verify that changes had no negative effect on any code was to run the program again. In this situation regression testing was the same as user acceptance testing, since running the program again would make sure that all the tests passed.
Automation (and later unit/integration testing), made it much easier to do regression testing automatically. Regression testing can still be done manually; it just takes much longer and is likely to introduce more bugs than it finds. As such, today's practice is to call regression testing what used to be called user acceptance testing (UAT), instead of its older name 'regression testing'.
Regression testing is testing the results of one or more release(s) of a project to make sure that all functionality is functioning as before. User acceptance testing is a type of regression testing which verifies that all functionality is functional and working as expected prior to product release. Hope this helps!
What is regression testing in agile?
I've been involved with a number of projects where regression testing was used as part of a QA function.
But, it wasn't until I started working with an agile team that I fully understood what regression testing was, and why it is needed. Regression testing is an integral part of our agile framework, and it's an important part of the entire software development lifecycle.
What is regression testing? Regression testing is essentially a software testing technique used to validate that the code you just wrote actually does what you expect it to do. This includes every major aspect of the code, from the most basic user interface functionality, to the more complex data driven tests, to the regression tests.
Regression testing is typically performed after a piece of code has been tested in a number of different ways. These tests will help you validate that the code you just wrote works the way you think it should. The testing phase usually occurs during the code freeze phase of a project.
Typically, a test plan or specification is created before the testing phase begins. The test plan or specification outlines how the code will be tested, and often includes the testing goals, or expected outcomes. Once a test plan or specification is developed, it's handed off to the QA team to perform the testing.
There are a number of ways in which you can go about regression testing. For the purposes of this article, I will only focus on two different approaches to regression testing: End-to-End Regression Testing : This is the most common approach to regression testing. It involves testing a complete piece of functionality, which may consist of a single screen, or a full system. This is where we perform testing in a similar way to how we would perform an end-to-end functional test.
: This is the most common approach to regression testing. System Tests: The second type of regression testing is more typical of testing in an agile environment. It's also known as unit testing. The concept is the same as end-to-end regression testing, except that the scope is much smaller.
What is an example of a regression test?
The simplest example of a regression test is when you write a program that has a bug, and then you test the program by running it.
The first time you run the program, it crashes, and you write a test that ensures that the program crashes if it does not.
This is a regression test because the test is checking that the program will crash when it was previously not crashing. Consider a website with a shopping cart where an item is added to the cart. After a couple of hours, the item is removed from the cart. If you are an online shopper, this may be acceptable behavior. However, if you are an online shopper who also checks the order status frequently, this may not be acceptable. What would you do?
The correct approach would be to add a regression test. A regression test is a test that checks that the site continues to function correctly even after a change has been made. For example, when the order is removed from the cart, the site is supposed to give an error message saying something like "The order was removed from the cart." However, if you were to add a new feature and remove the code to check the order status, the site may still work, but it might not say the right thing to the user.
A regression test would ensure that this happens.
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