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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How to Stay Current with JavaScript - JSJ 499

How to Stay Current with JavaScript - JSJ 499

The panel gets together to discuss how they learn new things and what things are important to learn.They start out discussing how to learn new things. They they go into how to keep up on the never-ending releases within the JavaScript ecosystem.PanelAimee KnightAJ O'NealCharles Max WoodDan ShappirSponsorsDev Influencers AcceleratorRaygun | Click here to get started on your free 14-day trialPodcastBootcamp.ioPicksAimee- The Cloudflare BlogAJ- Crockford on JSAJ- Beyond Code Project IdeasAJ- JS.ORGAJ- Markdown Cheat SheetAJ- BlissCharles- Level up | Devchat.tvCharles- Pragmatic Thinking and LearningCharles- 131 RR How to Learn | Devchat.tvDan- Dan Shappir on TwitterDan- Devchat.tvDan- WebPageTestContact Aimee:Aimee Knight – Software Architect, and International Keynote SpeakerGitHub: Aimee Knight ( AimeeKnight )Twitter: Aimee Knight ( @Aimee_Knight )LinkedIn: Aimee K.aimeemarieknight | InstagramAimee Knight | FacebookContact AJ:AJ ONealCoolAJ86 on GITBeyond Code BootcampBeyond Code Bootcamp | GitHubFollow Beyond Code Bootcamp | FacebookTwitter: Beyond Code Bootcamp ( @_beyondcode )Contact Charles:Devchat.tvDevChat.tv | FacebookTwitter: DevChat.tv ( @devchattv )Contact Dan:GitHub: Dan Shappir ( DanShappir )LinkedIn: Dan ShappirTwitter: Dan Shappir ( @DanShappir )Sponsored By:Podcast Bootcamp: Launch an Amazing Sounding Podcast in just 4 WEEKS! Work with a 13 year podcasting veteran to get your podcast started off on the right foot! Raygun: Raygun now offers Real User Monitoring of Core Web Vitals. Start your 14-day free trial now.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.

31 Aug 20211h 16min

Transitioning a Large Front-End Codebase to TypeScript ft. Priscila Oliveira and Mark Story – JSJ 498

Transitioning a Large Front-End Codebase to TypeScript ft. Priscila Oliveira and Mark Story – JSJ 498

Priscila Oliveira and Mark Story join the panel to discuss the recent transition at Sentry from vanilla JavaScript to React and TypeScript.The show starts out with the panelists nerding out over Sentry and how they use it, then they dive into the code transition and the things that they learned from their conversion to TypeScript.PanelAimee KnightAJ O'NealDan ShappirSteve EdwardsGuestMark StoryPriscila OliveiraSponsorsJavaScript Error and Performance Monitoring | SentryDev Influencers AcceleratorLinksSlow and Steady: Converting Sentry’s Entire Frontend to TypeScriptGitHub | markstory/vim-fileswebinstall.dev/vim-essentialsGitHub | billyvg/dotfilesTwitter: Sentry ( @getsentry )Twitter: Mark Story ( @mark_story )Twitter: Priscila Oliveira ( @priscilawebdev )PicksAimee- Inner EngineeringAJ- GitHub | coolaj86/await-catch.mdAJ- GitHub | dadoomer/markdown-slidesDan- Fall of Civilizations PodcastDan- Sir Humphrey Appleby on the Proper Function of Government - YouTubeMark- Edward TufteMark- GitHub | neoclide/coc.nvimPriscila - GitHub | clauderic/dnd-kitSteve- Episode 142: Sketch Notes in Tech with David NealContact Aimee:Aimee Knight – Software Architect, and International Keynote SpeakerGitHub: Aimee Knight ( AimeeKnight )Twitter: Aimee Knight ( @Aimee_Knight )LinkedIn: Aimee K.aimeemarieknight | InstagramAimee Knight | FacebookContact AJ:AJ ONealCoolAJ86 on GITBeyond Code BootcampBeyond Code Bootcamp | GitHubFollow Beyond Code Bootcamp | FacebookTwitter: Beyond Code Bootcamp ( @_beyondcode )Contact Dan:GitHub: Dan Shappir ( DanShappir )LinkedIn: Dan ShappirTwitter: Dan Shappir ( @DanShappir )Contact Steve:Twitter: Steve Edwards ( @wonder95 )GitHub: Steve Edwards ( wonder95 )LinkedIn: Steve EdwardsSpecial Guests: Mark Story and Priscila Oliveira.Sponsored By:Sentry: Resolve JavaScript errors and performance issues with SentrySupport 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 Aug 20211h 8min

Alpinejs, Microservices, Code Completion, and Getting Paid for Open Source with Caleb Porzio - JSJ 497

Alpinejs, Microservices, Code Completion, and Getting Paid for Open Source with Caleb Porzio - JSJ 497

Caleb is the maintainer of several popular open source projects and frameworks including Alpinejs and Livewire, and is also an avid user of GitHub's CoPilot. Also, he's living the dream - writing open source full time. We talk about declarative, imperative, moving from SPAs and APIs back to simpler server-oriented design, design architecture, code style and linting, and how Caleb's achieved the near-impossible task of monetizing open source in a way people love.PanelAimee KnightAJ O'NealGuestCaleb Porzio SponsorsDigitalOceanRaygun | Click here to get started on your free 14-day trialDev Influencers AcceleratorLinksTwitter: Caleb Porzio ( @calebporzio )PicksAimee- GitHub | RobinCsl/awesome-js-tooling-not-in-jsAJ- How to Rip Blu-Rays with a LibreDriveAJ- My Top Anime PicksCaleb- 3Blue1Brown - YouTubeContact Aimee:Aimee Knight – Software Architect, and International Keynote SpeakerGitHub: Aimee Knight ( AimeeKnight )Twitter: Aimee Knight ( @Aimee_Knight )LinkedIn: Aimee K.aimeemarieknight | InstagramAimee Knight | FacebookContact AJ:AJ ONealCoolAJ86 on GITBeyond Code BootcampBeyond Code Bootcamp | GitHubFollow Beyond Code Bootcamp | FacebookTwitter: Beyond Code Bootcamp ( @_beyondcode )Special Guest: Caleb Porzio .Sponsored By:DigitalOcean: Get started on DigitalOcean App Platform with $100 in free credit at do.co/jabber.Raygun: Raygun now offers Real User Monitoring of Core Web Vitals. Start your 14-day free trial now.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.

17 Aug 20211h 4min

An Unconventional Journey into Coding ft. Sam Sycamore - JSJ 496

An Unconventional Journey into Coding ft. Sam Sycamore - JSJ 496

Sam Sycamore joins the podcast to tell his story of transitioning into programming after listening to the podcast episode we recorded with Danny Thompson.Danny told his story about how he went from gas station attendant to programmer in a very short timeframe.Sam has now made a similar journey from landscape construction to programming and what inspired him to make the switch.PanelAimee KnightAJ O'NealCharles Max WoodDan ShappirSteve EdwardsGuestSam Sycamore GuestJavaScript Error and Performance Monitoring | SentryDev Influencers AcceleratorLinksHow I Learned to Code and Started Freelancing Full-Time in 8 MonthsEverything You Need to Know to Succeed as a FreelancerMy Freelancing Workflow, from Cold Leads to Paid InvoicesJSJ 442: Breaking Into Tech with Danny Thompson | Devchat.tvSycamore Design BlogTwitter: Sam Sycamore ( @tanoaksam )GitHub: Sam Sycamore ( samuelsycamore )PicksAimee- GitHub | ossu/computer-scienceAJ- Cloud Turbo Encabulator - YouTubeAJ- webinstall.devAJ- Brave SearchCharles- The Ruthless Elimination of HurryCharles- Atlas Shrugged Dan- Getting Comfortable Being Uncomfortable – Aimee Knight - YouTubeDan- Four Yorkshiremen- Monty Python - YouTubeSam- The Futur - YouTubeSam- leonnoel.comSteve- CakebrewSteve- New mystery AWS product 'Infinidash' goes viral — despite being entirely fictionalContact Aimee:Aimee Knight – Software Architect, and International Keynote SpeakerGitHub: Aimee Knight ( AimeeKnight )Twitter: Aimee Knight ( @Aimee_Knight )LinkedIn: Aimee K.aimeemarieknight | InstagramAimee Knight | FacebookContact AJ:AJ ONealCoolAJ86 on GITBeyond Code BootcampBeyond Code Bootcamp | GitHubFollow Beyond Code Bootcamp | FacebookTwitter: Beyond Code Bootcamp ( @_beyondcode )Contact Charles:Devchat.tvDevChat.tv | FacebookTwitter: DevChat.tv ( @devchattv )Contact Dan:GitHub: Dan Shappir ( DanShappir )LinkedIn: Dan ShappirTwitter: Dan Shappir ( @DanShappir )Contact Steve:Twitter: Steve Edwards ( @wonder95 )GitHub: Steve Edwards ( wonder95 )LinkedIn: Steve EdwardsSpecial Guest: Sam Sycamore . 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 Aug 20211h 16min

Opinionated Core Web Vitals - JSJ 495

Opinionated Core Web Vitals - JSJ 495

Dan Shappir takes the lead this week to discuss Core Web Vitals and how Google is pushing the web to be faster.He leads Chuck, Aimee, and AJ through the ways that developers can measure and improve the performance of websites based on the statistics specified by Google as components of Google rankings.PanelAimee KnightAJ O'NealCharles Max WoodDan ShappirSponsorsDigitalOceanRaygun | Click here to get started on your free 14-day trial Dev Influencers AcceleratorLinksWeb VitalsPicksAimee- GitHub | treosh/lighthouse-ci-actionAimee- GitHub | GoogleChrome/lighthouse-ciAJ- Classless CSSAJ- One FinanceAJ- JCS - Criminal Psychology - YouTubeAJ- Auth Library Live StreamCharles- Atlas Shrugged Charles- Dev Influencers | Devchat.tvDan- Core Web Vitals Technology ReportDan- Math Has a Fatal Flaw - YouTubeContact Aimee:Aimee Knight – Software Architect, and International Keynote SpeakerGitHub: Aimee Knight ( AimeeKnight )Twitter: Aimee Knight ( @Aimee_Knight )LinkedIn: Aimee K.aimeemarieknight | InstagramAimee Knight | FacebookContact AJ:AJ ONealCoolAJ86 on GITBeyond Code BootcampBeyond Code Bootcamp | GitHubFollow Beyond Code Bootcamp | FacebookTwitter: Beyond Code Bootcamp ( @_beyondcode )Contact Charles:Devchat.tvDevChat.tv | FacebookTwitter: DevChat.tv ( @devchattv )Contact Dan:GitHub: Dan Shappir ( DanShappir )LinkedIn: Dan ShappirTwitter: Dan Shappir ( @DanShappir )Sponsored By:Raygun: Raygun now offers Real User Monitoring of Core Web Vitals. Start your 14-day free trial now.DigitalOcean: Get started on DigitalOcean App Platform with $100 in free credit at do.co/jabber.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 Aug 20211h 13min

Flutter Essentials ft. Allen Wyma - JSJ 494

Flutter Essentials ft. Allen Wyma - JSJ 494

Allen Wyma, host of the Flying High with Flutter podcast, joins the Jabber panel to discuss building mobile applications with Flutter.The discussion includes an exploration of Flutter, how to get started, how it's different from other platforms, and who should consider using it.PanelCharles Max WoodSteve EdwardsGuestAllen WymaSponsorsDev Influencers AcceleratorJavaScript Error and Performance Monitoring | SentryLinksFlying High with Flutterpub.devTwitter: Plangora ( @Plangora )Twitter: Flying High with Flutter ( @fhwflutter )Twitter: Allen ( @allenwyma ) PicksAllen- Behind the birth of Dart - YouTubeAllen- Rust Servers, Services, and AppsAllen- Rust Web Development Charles- Outwitting the Devil Charles- Created Equal: Clarence Thomas in His Own WordsCharles- Podcast Guest Preparation Instructions | Devchat.tvContact Charles:Devchat.tvDevChat.tv | FacebookTwitter: DevChat.tv ( @devchattv )Contact Steve:Twitter: Steve Edwards ( @wonder95 )GitHub: Steve Edwards ( wonder95 )LinkedIn: Steve EdwardsSpecial Guest: Allen Wyma.Sponsored By:Sentry: Resolve JavaScript errors and performance issues with SentryTop End Devs Coaching: If you have questions about how to grow your skills or take your career to the next level, join us on our next weekly coaching call. It's completely free.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.

27 Juli 202152min

How to Check Your Application Security featuring Liran Tal - JSJ 493

How to Check Your Application Security featuring Liran Tal - JSJ 493

Liran Tal joins the Jabber to talk about how to secure your applications and how to check for security vulnerabilities in your application and its dependencies and infrastructure.Liran explains how to check your supply chain and your own code to make sure you're not leaving things open to malicious actors.PanelAJ O'NealCharles Max WoodDan ShappirSteve EdwardsGuestLiran Tal SponsorsDigitalOcean Raygun | Click here to get started on your free 14-day trialDev Influencers AcceleratorLinks5 ways to prevent code injection in JavaScript and Node.jsCommand injection: how it works, what are the risks, and how to prevent itJSJ 357: Event-Stream & Package Vulnerabilities with Richard Feldman and Hillel Wayne | Devchat.tvDevOps 062: Behind the SolarWinds breach | Devchat.tvDevOps 064: Software Dependencies: Do you Know What’s Lurking in your Software? | Devchat.tvPortSwiggerEssential Node.js Security for Express Web ApplicationsSnyk CodeTwitter: Liran Tal | React and Node.js Security ( @liran_tal )PicksAJ- Twitter: _MG_ ( @_MG_ )AJ-  In Order to LiveAJ- Live Stream Node.js Auth ProjectCharles- Who Now HowCharles- As a Man ThinkethCharles- Psycho-CyberneticsCharles- Monday.comCharles- DiscourseDan- JSJ 442: Breaking Into Tech with Danny Thompson | Devchat.tvDan- JSJ 439: More Jabber About Less JavaScript with Alex Russell | Devchat.tvDan- How I Learned to Code and Started Freelancing Full-Time in 8 MonthsDan- The Mobile Performance Inequality Gap, 2021Liran-  Working outLiran- Cult of the Dead CowLiran- Darknet DiariesSteve- GitHub | kutia-software-company/vue3-starterContact AJ:AJ ONealCoolAJ86 on GITBeyond Code BootcampBeyond Code Bootcamp | GitHubFollow Beyond Code Bootcamp | FacebookTwitter: Beyond Code Bootcamp ( @_beyondcode )Contact Charles:Devchat.tvDevChat.tv | FacebookTwitter: DevChat.tv ( @devchattv )Contact Dan:GitHub: Dan Shappir ( DanShappir )LinkedIn: Dan ShappirTwitter: Dan Shappir ( @DanShappir )Contact Steve:Twitter: Steve Edwards ( @wonder95 )GitHub: Steve Edwards ( wonder95 )LinkedIn: Steve EdwardsSpecial Guest: Liran Tal.Sponsored By:DigitalOcean: Get started on DigitalOcean App Platform with $100 in free credit at do.co/jabber.Raygun: Raygun now offers Real User Monitoring of Core Web Vitals. Start your 14-day free trial now.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.

20 Juli 20211h 23min

Power Tips for Browser Dev-Tools with Craig Buckler - JSJ 492

Power Tips for Browser Dev-Tools with Craig Buckler - JSJ 492

Craig Buckler joins the panel to jabber about Chrome Dev-Tools and some things you may not know you can do with them to empower your own front-end development. Some of the basics you may already know like Incognito mode. Some others you may not know like black boxing libraries you don’t control or throttling connections to simulate poor connections. He also talks through searching through network requests to see how your domain’s specific requests perform.PanelAimee KnightAJ O'NealCharles Max WoodDan ShappirSteve EdwardsGuestCraig BucklerSponsorsDev Influences AcceleratorJavaScript Error and Performance Monitoring | SentryLinksFirefox Developer Tools15 DevTool Secrets for JavaScript DevelopersCSS-Tricks Screencasts: #173: Ooooops I guess we’re full-stack developers now.Browser Devtool SecretsWindows Subsystem for Linux 2: The Complete GuideDocker for Web DevelopersDocker course samples and excerpts ( discount code dock30 )Jump Start Web PerformanceCraig Buckler - YouTubeCraig Buckler, Author at SitePointCraig Buckler ::  freelance UK web developer, writer, and speakerCraig BucklerTwitter: Craig Buckler ( @craigbuckler )PicksAimee- AWS flash cardsAimee- Normatec 2.0 Leg SystemAJ- Emulate Mobile HardwareAJ- The Black Prism (Lightbringer)AJ- webinstall.dev/wslCharles- Having a workout buddyCharles- Water Balloon LauncherCharles- Camp Stove and Griddle ComboCraig- How to Favicon in 2021 by Andrey SitnikCraig- When you're trying to print something by Stevie MartinDan- Master of the Five MagicsDan- Introducing WebContainers: Run Node.js natively in your browserContact Aimee:Aimee Knight – Software Architect, and International Keynote SpeakerGitHub: Aimee Knight ( AimeeKnight )Twitter: Aimee Knight ( @Aimee_Knight )LinkedIn: Aimee K.aimeemarieknight | InstagramAimee Knight | FacebookContact AJ:AJ ONealCoolAJ86 on GITBeyond Code BootcampBeyond Code Bootcamp | GitHubFollow Beyond Code Bootcamp | FacebookTwitter: Beyond Code Bootcamp ( @_beyondcode )Contact Charles:Devchat.tvDevChat.tv | FacebookTwitter: DevChat.tv ( @devchattv )Contact Dan:GitHub: Dan Shappir ( DanShappir )LinkedIn: Dan ShappirTwitter: Dan Shappir ( @DanShappir )Contact Steve:Twitter: Steve Edwards ( @wonder95 )GitHub: Steve Edwards ( wonder95 )LinkedIn: Steve EdwardsSpecial Guest: Craig Buckler.Sponsored By:Sentry: Resolve JavaScript errors and performance issues with SentrySupport 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.

13 Juli 20211h 7min

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