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Questions tagged [regression-testing]

Regression testing is a form of software testing that focuses on retesting past fixed bugs to verify that recent changes to the software have not reactivated the old bugs.

Regression testing is a form of software testing that focuses on retesting past fixed bugs to verify that recent changes to the software have not reactivated the old bugs. A software build in which old bugs resurface is said to have "regressed", in the sense that the software has taken a step backwards on the project completion timeline. Regression testing is typically done concurrently with unit testing, integration testing and systems testing and may be incorporated as a part of each of those testing phases.

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How can i check how the predict function in MATLAB is working?

I have a very simple MATLAB program for training and testing a regression tree, I use the same Data carsmall that is in the tutorial examples: clear all clc close all load carsmall X = [Cylinders, Weight, Horsepower, Displacement]; Y = MPG; tree…
Diego Fernando Pava
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Take screenshot in catch clause nightmarejs javascript

The code below is not working. It fails on nightmare.screenshot('./screenshots/error_inner.png') in the catch clauses. The error messages suggests it's actualy trying to read rather than write the file: error_inner.png Is there anyone who knows how…
Tomas Hesse
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Unmarshalling gives null value for child fields having namespace in xml

As am using jdk 8u144, when i tried to unmarkshal the xml to object i am getting null value for the field having namespace. Tried with NamespaceFilter class which takes namespaceUri and addNamespace fields as a parameters, but seems that it works…
Pankaj Khairnar
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write functional regression test for nova

I have an open bug in gerrit here code reviewer ask me to write functional regression test for the changes, anyone can help me to do that? Thanks in advance.
Ameed
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can I have regression tests in jekyll?

Some of the pleasure of writing in markdown is the ability to spread links all over the place (I wish [[link]] worked though). Odds are that I've made a typo or just plain forgot to actually fill in some of the links. Is there a way to easily write…
mcr
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How to increase goto timeout for page load?

tl;dr; I need to increase this timeout: COMMAND | Command `test` ended with an error after [32.585s] COMMAND | BackstopExcpetion: Test #1 on undefined: GotoTimeoutError: goto() timeout Consider following server code: const http =…
Qwertiy
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Why is PhantomCSS moving the HTML elements around?

Problem: when I use a visual regression testing tool such as PhantomCSS, the screenshots produced contain the website with dramatically moved HTML elements. Problem image: How it should really look like: (taken from esfiddle.net ) Tools:…
Eugene Fedotov
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Specify Chrome as browser for running tests in

Trying to configure backstopjs to test page in Google Chrome instead of phantomjs as phantom doesn't render the page correctly. Tried to replace "engine": "phantomjs", by "engine": "chrome", but it didn't help. What should I install and how should…
Qwertiy
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Create online regression tests for code snippets on CodePen

tl;dr Is there an online service or something similar that allows writing regression tests (e.g. using Jasmine or Karma) for code snippets hosted on CodePen.io? Broader picture I want to create a community driven resource of accessible code…
Joshua Muheim
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Serenity BDD reports naming

I am using the Serenity BDD tool Version 1.2.1-rc.6 with JUnit 4.12 to automate some regression testing. The project is working fine so far but I want to be able to rename the generated reports. At the moment they are called something like this: …
B.Wagner
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Why Would a QTP object class change from JavaWindow to Window

I have an existing set of QTP regression tests that I wrote and have executed through several regression test cycles successfully. I have a JavaWindow that contains several JavaTables where I parse the table data into an array and verify it against…
Tom
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How to address SpecFlow Scenario Outlines with too many parameters?

We are using SpecFlow for functional tests that suppose to replace manual testing when a human reads generated email and validates that all sections match specification. The problem is that Scenario Outlines become to grow to have too many…
Michael Freidgeim
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Regression component tests with Cucumber. Is there any boundary to the layers that should be tested?

I found myself last week having to start thinking about how to refactor an old application that only contains unit tests. My first idea was to add some component test scenarios with Cucumber to get familiarised with the business logic and to ensure…
Juan Vega
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Test Method Fails in Test Suite but passes individually in .net C#

I am encountering a very strange problem in .net regression testing. I have a test method which fails when I run the complete test suit, but the same test method passes when run individually. What could be the possible reason behind it. I double…
Madhur Maurya
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Should I put my automated regression tests inside a web application?

Question Is it worth building a web application front-end for my department's automated regression tests? I've searched quite a bit and I don't think anything like this exits. Basically the web application would allow a user to specify a URL,…
Usman Mutawakil
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