When writing scripts, it’s important to know how to test and validate variables.

What does test script actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Columnist Daniel Gilbert wasn't satisfied with AdWords' native A/B testing capabilities, so he and his team wrote a script.

The (narrow but very important) problem: Test scripts used for version 1.0 of an application will probably break when applied to version 2.

Imagine typing out a series of steps in plain English that would reflect a list of actions a human QA tester would undertake to test an app, then turning that list into an automated testing script ...