Cross-browser testing: Difference between revisions

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{{Short description|Checking web applications in various browsers}}

'''Cross-browser testing''' is a type of non-functional [[software testing]] where [[Web application|web applicationsapplication]]s are checked for support across different browsers and devices.<ref>{{Cite web|date=2020-12-01|title=What Is Cross-Browser Testing? A Simple, Practical Guide|url=https://www.testim.io/blog/what-is-cross-browser-testing/|access-date=2021-08-02|website=AI-driven E2E automation with code-like flexibility for your most resilient tests|language=en-US}}</ref> Cross-browser testing can also provide an objective, independent view of the status of the web application to allow the business to appreciate and understand the risks of releasing it or implementing new feature(s).<ref>{{Cite web|title=What is Cross Browser Testing and How to Perform It: A Complete Guide|url=https://www.softwaretestinghelp.com/how-is-cross-browser-testing-performed/|access-date=2021-07-26|website=www.softwaretestinghelp.com}}</ref> Test techniques include the process of executing a web application with the intent of finding failures in different browsers and devices and verifying that the website is fit for use in all of them. In other words, Cross-browser testing is verification that web application behaves in various [[Webweb browser|web browsers]]s identically<ref>{{Cite web|title=Introduction to cross browser testing - Learn web development {{!}} MDN|url=https://developer.mozilla.org/en-US/docs/Learn/Tools_and_testing/Cross_browser_testing/Introduction|access-date=2021-07-26|website=developer.mozilla.org|language=en-US}}</ref>

== History ==

[[File:Device-market-share.png|thumb|Device market share (Jan 2009 - May 2021)]]

The term "cross-browser testing" originated in the early 2000s with the advent of various web browsers that rendered web pages in different ways and supported different web technologies.<ref>{{Cite web|title=Reading: Web Browser {{!}} Introduction to Computer Applications and Concepts|url=https://courses.lumenlearning.com/zeliite115/chapter/reading-web-browser/|access-date=2021-08-02|website=courses.lumenlearning.com}}</ref> As a result, this led to inconsistencies in the behavior of web applications across browsers. In the early 2010s, smartphones entered the device market, and their number began to grow significantly. According to the data from Statcounter,<ref>{{Cite web|title=Desktop vs Mobile vs Tablet Market Share Worldwide|url=https://gs.statcounter.com/platform-market-share/desktop-mobile-tablet/worldwide/|access-date=2021-07-26|website=StatCounter Global Stats|language=en}}</ref> in November 2016 the number of sessions on mobile devices equaled the number of sessions on desktop devices. As of July 2021, the number of sessions on mobile devices is already 55.4%. The widespread use of mobile devices has led to the emergence of the term "cross-device testing"

== Cross-browser testing process ==