Modern JavaScript Testing: Integration, Contract Testing & AI Tools - JSJ 692

Modern JavaScript Testing: Integration, Contract Testing & AI Tools - JSJ 692

In this episode of JavaScript Jabber, I sit down with Dan Shapir and our special guest, Yoni Goldberg, to dive deep into the ever-evolving world of JavaScript testing. Yoni, a consultant who’s worked with over 40 organizations to refine developer workflows, shares valuable lessons learned from helping teams design efficient and reliable tests.

We explore emerging trends in testing, including the rise of browser-based test runners, the shift from unit testing toward more integration and component testing, and how modern frameworks like Playwright, Vite Test Browser Mode, and Storybook are changing the way developers think about confidence in their code. We also tackle the role of AI in writing and maintaining tests, the pros and cons of mocking vs. real backends, and why contract testing is becoming essential in 2025.

If you’ve ever struggled with flaky end-to-end tests, wondered how to balance speed with confidence, or wanted a clear breakdown of modern testing tools, this conversation will give you practical insights and fresh perspectives to take back to your projects.

Links & Resources

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Episoder(728)

JSJ 426: Killing the Release Night with Progressive Delivery with Dave Karow

JSJ 426: Killing the Release Night with Progressive Delivery with Dave Karow

JavaScript Remote Conf 2020May 14th to 15th - register now! Dave Karow is a developer evangelist for Split. He dives into how you can deliver software sustainably without burning out. His background is in performance and he's moved into smooth deliveries. He pushes the ideas behind continuous delivery and how to avoid getting paid to stay late in "free" pizzas.PanelAJ O’NealAimee KnightCharles Max WoodDan ShappirGuestDave KarowSponsorsG2i | Enjoy the luxuries of freelancingTaiko - free and open source browser test automationCacheFly____________________________________________________________ "The MaxCoders Guide to Finding Your Dream Developer Job" by Charles Max Wood is now available on Amazon. Get Your Copy Today! ____________________________________________________________LinksSplit.ioContinuous Deliveryzeit.coThe Practical Test PyramidAccelerateThe Unicorn ProjectEnder's GameEnder's ShadowAtlassian SummitDeliveryConfJSJ 418: Security Scary Stories and How to Avoid Them with Kevin A McGrailFeature togglesplit.io Dave KarowProgressive DeliverySpeaker Deck Dave KarowLearn Enough Command Line to Be DangerousBeyond Code BootcampPicksAimee Knight:Designing for PerformanceEarly Riser or Night Owl?Dan Shappir:web.devAJ O’Neal:CineRAID CR-H458DataCenter 8TB DrivesTiltamax Wireless Follow Focus SystemCharles Max WoodThe ExpanseCourse Creator PRODave Karow:AccelerateFollow JavaScript Jabber on Twitter > @JSJabb Special Guest: Dave Karow. Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

24 Mar 20201h 13min

JSJ 425: The Evolution of JavaScript

JSJ 425: The Evolution of JavaScript

Dan Shappir takes the lead and walks the panel through the history of JavaScript and a discussion on ES6, TypeScript, the direction and future of JavaScript, and what features to be looking at and looking for in the current iteration of JavaScript.PanelAJ O’NealAimee KnightCharles Max WoodSteve EdwardsDan ShappirSponsorsTaiko - free and open source browser test automationSplit____________________________________________________________ "The MaxCoders Guide to Finding Your Dream Developer Job" by Charles Max Wood is now available on Amazon. Get Your Copy Today! ____________________________________________________________LinksThe TC39 ProcessLe Creuset Star Wars™ Han Solo Roaster | Williams Sonoma124 JSJ The Origin of Javascript with Brendan EichCrockford on JavaScriptLe Creuset TurkeyMJS 108: Dan ShappirMJS 132: Douglas CrockfordJSJ 392: The Murky Past and Misty Future of JavaScript with Douglas Crockford"Things You Can Do In ES6 That Can't Be Done In ES5" - View Source talk by Dan ShappirObject Property Value Shorthand in JavaScript with ES6Spread syntax - JavaScript | MDNJavaScript for-loops are… complicated - HTTP203Optional chaining - JavaScript | MDNBreaking Chains with Pipelines in Modern JavaScriptPicksAJ O’Neal:Expert SecretsCourse Creator ProBraun Series 7Aimee Knight:Kickstarter Employees Win Historic Union ElectionBroccoli Sprouts Nutrition And Benefits Of SulforaphaneCharles Max Wood:The ExpanseThe Masked SingerLEGO MastersSteve Edwards:BeanoSteve Wright HBO specialDan Shappir:CC 001: Clean Agile with Robert "Uncle Bob" Martin.NET 019: The History of .NET with Richard CampbellRRU 097: State Management and React Component Design with Becca BaileyFollow JavaScript Jabber on Twitter > @JSJabberSupport this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

17 Mar 20201h 18min

JSJ 424: UI5 and web components with Peter Muessig

JSJ 424: UI5 and web components with Peter Muessig

In this episode of JavaScript Jabber the panelists and guest delve into the advantages of the shadow dom, transitioning from polymer js polyfills to native web components when moving for SAP UI to UI5, which works within React, Vue, Angular, and others.PanelAJ O’NealAimee KnightSteve EdwardsDan ShappirGuestPeter MüßigFollow Peter on Twitter > @pmuessig, GithubSponsorsTaiko, free and open source browser test automation____________________________________________________________ "The MaxCoders Guide to Finding Your Dream Developer Job" by Charles Max Wood is now available on Amazon. Get Your Copy Today! ____________________________________________________________LinksOpenUI5Home - SAPUI5 SDKPicksAJ O’Neal:Vinyl ClocksAcrylic StandAJ's YouTube Channel (AMA)Aimee KnightAnnouncing Div Ops as the Slack and Reddit communitiesSteve EdwardsToday on Pearls Before Swine - Comics by Stephan PastisDan ShappirThe Wixing Street Interview | Facts about Wixing in GermanyWix.com werbung | versuch nicht zu lachenUI5 Web ComponentsPeter MüßigJavaScript Jabber Follow JavaScript Jabber on Twitter > @JSJabber Special Guest: Peter Muessig. Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

10 Mar 202042min

JSJ 423: State of JS

JSJ 423: State of JS

The panelists discuss that latest State of JS survey. They begin talking about the merits and methods of the survey and then discuss the value you can extract from the survey. They also consider the various comparisons and trends presented by the survey and what they may mean.Panel:AJ O’NealAimee KnightCharles Max WoodDan ShappirSponsors:G2i | Enjoy the luxuries of freelancing ____________________________________________________________  "The MaxCoders Guide to Finding Your Dream Developer Job" by Charles Max Wood is now available on Amazon. Get Your Copy Today! ____________________________________________________________Links:The State of JavaScript 2019Picks:Aimee Knight:Fruit and Veggie TraysA curated list of Chaos Engineering resources.AJ O’Neal:Gear.Club UnlimitedCharles Max Wood:Clean Coders PodcastWorkshops with ChuckDan Shappir:Wix Engineering BlogBeating Textbook Algorithms in String Search Follow JavaScript Jabber on Twitter > @JSJabber   Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

3 Mar 202050min

JSJ 422: CSS and Houdini with Una Kravets

JSJ 422: CSS and Houdini with Una Kravets

Una Kravets talks to the panel about CSS and its future. We dive into what Houdini is and how much of it is implemented in the browsers. She explains how the changes outlined in Houdini will improve the user experience on the web and developer experience for web developers.Panel:Aimee KnightAJ O’NealCharles Max WoodGuest:Una KravetsSponsors:Split____________________________________________________________  "The MaxCoders Guide to Finding Your Dream Developer Job" by Charles Max Wood is now available on Amazon. Get Your Copy Today! ____________________________________________________________Links:CSS HoudiniWorking with the new CSS Typed Object ModelPaintWorklet.registerPaint | MDNIs Houdini Ready Yet?extra.cssNew horizons in CSS: Houdini and the Paint APICSS Houdini ExperimentsPicks:Aimee Knight:Things you can do with a browser in 2020AJ O’Neal:SD Card WalletSP 128gb MicroSDRocketekCharles Max Wood:Gmelius (Affiliate link)MyPillowChilipad (Affiliate link)Una Kravets:Follow Una on Twitter - @UnaUna's Podcast - ToolsdayWeb Series: Designing in the BrowserHaving a nice CouchBob's Discount FurnitureSpecial Guest: Una Kravets. Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

25 Feb 20201h

JSJ 421: Semantic HTML with Bruce Lawson

JSJ 421: Semantic HTML with Bruce Lawson

Bruce Lawson is an expert in and proponent of semantic HTML. After receiving some good natured ribbing, Bruce walks the panel through the benefits of semantic HTML. He provides several examples on how it's used and in particular how it helps with other issues like accessibility and navigability on your websites.PanelAJ O’NealAimee KnightCharles Max WoodDan ShappirGuestBruce LawsonSponsorsG2iSpringboard | Promo code "JABBER" gives $500 off the job-guaranteed Course____________________________________________________________ "The MaxCoders Guide to Finding Your Dream Developer Job" by Charles Max Wood is now available on Amazon. Get Your Copy Today! ____________________________________________________________LinksWebAIM: Web Accessibility In Mind<input type="date">The 4 minute business case for accessible online shoppingPicksAJ O’Neal:Better Mic SoundCanon T4i 650DCanon T5i CourseMagic LanternFilmic Pro & PromovieAimee Knight:AddyOsmani.com - Native image lazy-loading for the web!Charles Max Wood:Codineer - 100 days of Vue challengeDan Shappir:Alex Russell - The Mobile Web: MIABruce Lawson WebsiteBruce Lawson:Taffy music bandFollow Bruce on Twitter @brucelSpecial Guest: Bruce Lawson. Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

18 Feb 20201h 8min

JSJ 420: OpenAPI, Redoc, and API Documentation with Adam Altman

JSJ 420: OpenAPI, Redoc, and API Documentation with Adam Altman

Adam dives into how to document your application using OpenAPI (formerly Swagger) and then how to generate great documentation for your API's using Redoc. He gives us the history of Redoc, breaks down the process for building API documentation, and understanding the OpenAPI specification.PanelistsAimee KnightDan ShappirAJ ONealSteve EdwardsGuestAdam AltmanSponsorsG2i____________________________ "The MaxCoders Guide to Finding Your Dream Developer Job" by Charles Max Wood is now available on Amazon. Get Your Copy Today! ____________________________________________________________Linkshttps://twitter.com/redoclyHttps://Redoc.lyhttps://www.facebook.com/redoclyPicksSteve Edwards:https://wesbos.com/announcing-my-css-grid-course/https://flexbox.io/Aimee Knight:https://github.com/ErikCH/DevYouTubeListDan Shappir:Old Kingdom Book SeriesAJ O’Neal:Final Fantasy VII and VIII (Physical Copy, English) on Play AsiaAdam Altman:concepts.appSpecial Guest: Adam Altman. Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

11 Feb 202045min

JSJ 419: Google App Script with Ben Collins

JSJ 419: Google App Script with Ben Collins

Today’s guest is Ben Collins, who creates online courses, writes tutorials, and teaches workshops around G Suite and App Script. Apps Script is a scripting platform developed by Google for light-weight application development in the G Suite platform. It is an implementation of JavaScript with the express purpose of extending Google apps. App Script was started 10 years ago as a side project, and it eventually took on its own life. Ben talks about some of the different things that App Script can do and where things are stored. They discuss different ways you can get into the script and how to import external scripts from a CDN. Ben gives two examples, one simple and one sophisticated, that you might build from App Script. He talks about event triggers and how authentication is handled. He goes over the three deployment options, namely web app, app executable, sheets add-on, and deploying from the manifest. Ben talks about how triggers are managed in App Script and options for debugging. There is also the option to develop locally as well as in the browser. The show ends with him talking about how to build using HTML in App Script.PanelistsAimee KnightSteve EdwardsDan ShapirGuestBen CollinsSponsorsG2iSplit____________________________ "The MaxCoders Guide to Finding Your Dream Developer Job" by Charles Max Wood is now available on Amazon. Get Your Copy Today! ____________________________________________________________LinksG SuiteAppScriptClaspPicksSteve Edwards:King Kong ApparelAimee Knight:Developers Mentoring Other DevelopersDan Shapir:The Web AlmanacAJ O’Neal:PhotographyMagic LanternBem Collins:Cold Turkey appFollow Ben at Benlcollins.com and TwitterSpecial Guest: Ben Collins. Support this podcast at — https://redcircle.com/javascript-jabber/donationsPrivacy & Opt-Out: https://redcircle.com/privacyBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

4 Feb 202049min

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