JSJ 341: Testing in JavaScript with Gil Tayar
JavaScript Jabber27 Nov 2018

JSJ 341: Testing in JavaScript with Gil Tayar

Panel:
  • Aimee Knight
  • AJ O’Neal
  • Charles Max Wood
Special Guest: Gil Tayar In this episode, the panel talks with Gil Tayar who is currently residing in Tel Aviv and is a software engineer. He is currently the Senior Architect at Applitools in Israel. The panel and the guest talk about the different types of tests and when/how one is to use a certain test in a particular situation. They also mention Node, React, Selenium, Puppeteer, and much more!Show Topics:0:00 – Advertisement: KENDO UI 0:35 – Chuck: Our panel is AJ, Aimee, myself – and our special guest is Gil Tayar. Tell us why you are famous!1:13 – Gil talks about where he resides and his background. 2:27 – Chuck: What is the landscape like now with testing and testing tools now?2:39 – Guest: There is a huge renaissance with the JavaScript community. Testing has moved forward in the frontend and backend. Today we have lots of testing tools. We can do frontend testing that wasn’t possible 5 years ago. The major change was React.The guest talks about Node, React, tools, and more!4:17 – Aimee: I advocate for tests and testing. There is a grey area though...how do you treat that? If you have to get something into production, but it’s not THE thing to get into production, does that fall into product or...what?5:02 – Guest: We decided to test everything in the beginning. We actually cam through and did that and since then I don’t think I can use the right code without testing. There are a lot of different situations, though, to consider.The guest gives hypothetical situations that people could face. 6:27 – Aimee.6:32 – Guest: The horror to changing code without tests, I don’t know, I haven’t done that for a while. You write with fear in your heart. Your design is driven by fear, and not what you think is right. In the beginning don’t write those tests, but...7:22 – Aimee: I totally agree and I could go on and on and on.7:42 – Panel: I want to do tests when I know they will create value. I don’t want to do it b/c it’s a mundane thing. Secondly, I find that some times I am in a situation where I cannot write the test b/c I would have to know the business logic is correct. I am in this discovery mode of what is the business logic? I am not just building your app.I guess I just need advice in this area, I guess.8:55 – Guest gives advice to panelist’s question. He mentions how there are two schools of thought.10:20 – Guest: Don’t mock too much.10:54 – Panel: Are unit tests the easiest? I just reach for unit testing b/c it helps me code faster. But 90% of my code is NOT that.11:18 – Guest: Exactly! Most of our test is glue – gluing together a bunch of different stuff! Those are best tested as a medium-sized integration suite.12:39 – Panel: That seems like a lot of work, though! I loathe the database stuff b/c they don’t map cleanly. I hate this database stuff.13:06 – Guest: I agree, but don’t knock the database, but knock the level above the database.13:49 – Guest: Yes, it takes time! Building the script and the testing tools, but when you have it then adding to it is zero time. Once you are in the air it’s smooth sailing.14:17 – Panel: I guess I can see that. I like to do the dumb-way the first time. I am not clear on the transition.14:47 – Guest: Write the code, and then write the tests.The guest gives a hypothetical situation on how/when to test in a certain situation. 16:25 – Panel: Can you talk about that more, please?16:50 – Guest: Don’t have the same unit – do browser and business logic stuff separated. The real business logic stuff needs to be above that level. First principle is separation of concerns.18:04 – Panel talks about dependency interjection and asks a question. 18:27 – Guest: What I am talking about very, very light inter-dependency interjection.19:19 – Panel: You have a main function and you are doing requires in the main function. You are passing the pieces of that into the components that need it.19:44 – Guest: I only do it when it’s necessary; it’s not a religion for me. I do it only for those layers that I know will need to be mocked; like database layers, etc.20:09 – Panel.20:19 – Guest: It’s taken me 80 years to figure out, but I have made plenty of mistakes a long the way. A test should run for 2-5 minutes max for package.20:53 – Panel: What if you have a really messy legacy system? How do you recommend going into that? Do you write tests for things that you think needs to get tested?21:39 – Guest answers the question and mentions Selenium! 24:27 – Panel: I like that approach.24:35 – Chuck: When you say integration test what do you mean?24:44 – Guest: Integration tests aren’t usually talked about. For most people it’s tests that test the database level against the database. For me, the integration tests are taking a set of classes as they are in the application and testing them together w/o the...so they can run in millisecond time.26:54 – Advertisement – Sentry.io 27:52 – Chuck: How much do the tools matter?28:01 – Guest: The revolutions matter. Whether you use Jasmine or Mocha or whatever I don’t think it matters. The tests matter not the tools.28:39 – Aimee: Yes and no. I think some tools are outdated.28:50 – Guest: I got a lot of flack about my blog where I talk about Cypress versus Selenium. I will never use Jasmine. In the end it’s the29:29 – Aimee: I am curious would you be willing to expand on what the Selenium folks were saying about Puppeteer and others may not provide?29:54 – Guest: Cypress was built for frontend developers. They don’t care about cross browser, and they tested in Chrome. Most browsers are typically the same. Selenium was built with the QA mindset – end to end tests that we need to do cross browser.The guest continues with this topic.30:54 – Aimee mentions Cypress. 31:08 – Guest: My guessing is that their priority is not there. I kind of agree with them.31:21 – Aimee: I think they are focusing on mobile more.31:24 – Guest: I think cross browser testing is less of an issue now. There is one area that is important it’s the visual area! It’s important to test visually across these different browsers.32:32 – Guest: Selenium is a Swiss knife – it can do everything.33:32 – Chuck: I am thinking about different topics to talk about. I haven’t used Puppeteer. What’s that about?33:49 – Guest: Puppeteer is much more like Selenium. The reason why it’s great is b/c Puppeteer will always be Google Chrome. 35:42 – Chuck: When should you be running your tests? I like to use some unit tests when I am doing my development but how do you break that down?36:06 – Guest.38:30 – Chuck: You run tests against production?38:45 – Guest: Don’t run tests against production...let me clarify!39:14 – Chuck.39:21 – Guest: When I am talking about integration testing in the backend...40:37 – Chuck asks a question. 40:47 – Guest: I am constantly running between frontend and backend.I didn’t know how to run tests for frontend. I had to invent a new thing and I “invented” the package JS DONG. It’s an implementation of Dong in Node. I found out that I wasn’t the only one and that there were others out there, too.43:14 – Chuck: Nice! You talked in the prep docs that you urged a new frontend developer to not run the app in the browser for 2 months?43:25 – Guest: Yeah, I found out that she was running the application...she said she knew how to write tests. I wanted her to see it my way and it probably was a radical train-of-thought, and that was this...44:40 – Guest: Frontend is so visual.45:12 – Chuck: What are you working on now?45:16 – Guest: I am working with Applitools and I was impressed with what they were doing.The guest goes into further detail.46:08 – Guest: Those screenshots are never the same.48:36 – Panel: It’s...comparing the output to the static site to the...48:50 – Guest: Yes, that static site – if you have 30 pages in your app – most of those are the same. We have this trick where we don’t upload it again and again. Uploading the whole static site is usually very quick. The second thing is we don’t wait for the results. We don’t wait for the whole rendering and we continue with the

Become a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

Avsnitt(725)

Optimizing SQL and ORM Practices for High-Performance Applications - JSJ 650

Optimizing SQL and ORM Practices for High-Performance Applications - JSJ 650

In today's episode, Charles, Steve, and AJ, are joined by back-end engineer and team lead at Homebound, Stephen Haberman. We delve into the fascinating world of SQL c and its revolutionary approach to managing SQL queries with dedicated SQL files, delivering benefits such as reduced typing errors and pre-deployment checks. Stephen also walks us through the advantages and limitations of ORMs versus query builders like Prisma and Drizzle, sharing insights into Joyce ORM's unique philosophy and simplified CRUD operations.They explore the intricacies of Domain Driven Design (DDD), its emphasis on ubiquitous language, and how it shapes business logic and storage management. AJ contributes by discussing the potential of SQL c and Slonik for dynamic query building. Additionally, they discuss Steven's innovative work with GraphFileWorker and GrafAST, highlighting the performance improvements in GraphQL backends. Whether you're intrigued by the technicalities of ORMs, the evolution of database tools, or just love a good anecdote, this episode packed with technical insights and lively discussions is one you won't want to miss. Join them on this journey into the world of database management and development!SocialsLinkedIn: Stephen HabermanPicks AJ - TypeScript to JSDocAJ - MySQL to TypeScriptAJ - sqlcAJ - Slonik (Node + Postgres)AJ - SwiftUI EssentialsAJ - Introduction to SwiftUI AJ - Trump, but not saying dumb thingsCharles - Biblios | Board GameCharles - FreeStyle Libre 3 System | Continuous Glucose MonitoringStephen - Grafast | GrafastBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

24 Sep 20241h 31min

Mentorship in Tech: Balancing Professionalism and Friendship for Maximum Growth and Accountability - JSJ 649

Mentorship in Tech: Balancing Professionalism and Friendship for Maximum Growth and Accountability - JSJ 649

They dive deep into the world of mentorship, personal growth, and problem-solving with our special guests, Joao and Manny, alongside our insightful panelists, AJ and Charles.In this episode, they explore the transformative power of weekly accountability meetings (WAM), where tasks are committed and followed up with a yes or no, no excuses allowed. Joao and Manny share their journey of mentorship that crossed borders, forging a strong bond through adversity and mutual respect. We'll also delve into how their dynamic friendship amplifies professional standards, and the importance of balancing personal and professional relationships.We discuss the profound impacts of structured problem-solving methods, specifically George Polya's renowned four-step process. Joao and Manny highlight how this systematic approach has refined their coding skills and overall problem-solving abilities. Alongside, we touch upon the fascinating intersection of human learning and AI, emphasizing the unique capacity humans have for generalizing new problems from limited data.In addition, our speakers will share their roadmap for continuous learning, curriculum development, and practical exercises—highlighting tools like Trello for task management and Anki for reinforcing learning. AJ O'Neil offers his unique perspective on the talent it takes to thrive in programming and how personal enjoyment is crucial for sustained success.Later, we'll transition to our Picks section, where AJ, Charles, and the guests share their latest recommendations, from essential productivity tools and engaging books to top-notch apps and board games.Finally, we'll wrap up with some valuable insights on time management, consistent study habits, and the importance of finding a mentor who truly cares about your growth. Whether you're a seasoned developer or just starting out, this episode is packed with practical advice and inspiring stories that you won't want to miss. So, tune in for all this and more on Top End Devs!PicksAJ - Apple EarpodsAJ - SwiftUICharles - Biblios | Board GameCharles - FreeStyle Libre 3 SystemManny - Jaco: The Extraordinary and Tragic Life of Jaco PastoriusManny - Baldur's Gate 3 on SteamBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

17 Sep 20241h 19min

Unpacking Deno 2: Code Stability, Free Speech, and more - JSJ 648

Unpacking Deno 2: Code Stability, Free Speech, and more - JSJ 648

Today, Charles, Dan, AJ, and Steve dive into a range of fascinating discussions. Joining this episode is special guest, Ryan Dahl, the visionary creator behind Node.js and Deno.In this episode, they traverse an eclectic mix of topics, from humorous offbeat news and dad jokes to in-depth tech discussions. They explore the complexities and legalities surrounding free speech, offering diverse perspectives on its implications in the modern digital landscape.But the heart of our discussion is Ryan Dahl's exploration of Deno 2, the latest evolution in JavaScript's runtime environment. You'll hear about its distinctive features, including the revolutionary JSR project, and how it aims to simplify and secure modern JavaScript development, addressing challenges and limitations found in Node.js. They also discuss the intricacies of TypeScript support, Deno’s security model, and the future potential of JavaScript in data science.Join them for a lively conversation packed with insights, technical deep-dives, and plenty of humor. Whether you're a seasoned developer or just starting your coding journey, this episode is sure to offer valuable takeaways and an entertaining ride through the world of modern web development.Sponsors Wix StudioSocialsLinkedIn: Ryan DahlTwitter: @deno_landDenoPicksAJ - SwiftAJ - DenoCharles - Challengers! | Board GameRyan - GrainBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

10 Sep 20241h 34min

Opinionated Core Web Vitals - JSJ 647

Opinionated Core Web Vitals - JSJ 647

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.Sponsors Wix StudioLinksWeb 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 - YouTubeBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

3 Sep 20241h 10min

Beyond JavaScript: Master TypeScript at Scale at SquiggleConf - JSJ 646

Beyond JavaScript: Master TypeScript at Scale at SquiggleConf - JSJ 646

Dan together with Josh Goldberg, a prominent open-source maintainer and author of "Learning TypeScript, dive into the world of TypeScript and JavaScript with a special focus on the upcoming Squiggleconf. In this episode, they'll detail the conference format, including its dedicated days for talks and workshops, and highlight the impressive lineup of speakers who will cover topics like ASTs, TypeScript at scale, and essential documentation practices.Josh also shares insights into the evolution and practical application of TypeScript ESLint. Expect a deep dive into TypeScript's latest features, such as generics and specific lint rules that enhance code quality and developer experience.SocialsLinkedIn: ‌Josh ‌GoldbergPicksDan - Dan's favorite standalone fantasy booksDan - Despicable Me and MinionsJosh - NeuromancerJosh - WitcherBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

28 Aug 20241h 10min

Deep Dive into Metrics and Monitoring with Prometheus and Grafana - JSJ 645

Deep Dive into Metrics and Monitoring with Prometheus and Grafana - JSJ 645

Dive into a fascinating discussion blending the worlds of literature, gaming, and tech. In this episode, Chuck and Dan explore the intriguing connections between The Hobbit and The Lord of the Rings, including an extraordinary tale about Israeli pilots translating The Hobbit during wartime. They share insights into Guy Gavriel Kaye’s standalone novel Tigana, inspired by Renaissance Italy, and discuss the complexities and strategies of board games like Monopoly and Letters from Whitechapel.But that’s not all. The episode takes a technical turn as the speakers delve into the dynamic world of application monitoring with Prometheus. They unpack the mechanics of event loop lag, heap usage, and GC storms, and share how Prometheus's query language (PromQL) and integration with Grafana can proactively manage and solve performance issues. Hear about real-time alerting, sophisticated querying, and the practical applications of these tools in companies like Next Insurance and Sisense.This episode is packed with information - from managing performance metrics and alerting systems to insightful discussions on favorite standalone fantasy novels and the productivity hacks that keep our hosts on top of their game. So, sit back and join us for an engaging and informative session on Top End Devs!SocialsLinkedIn: Chuck WoodLinkedIn: Dan ShappirPicksCharles - Letters from Whitechapel | Board GameCharles - TrainingPeaks | Empower Your TrainingBecome a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

20 Aug 20241h 25min

Crafting Code and Community: AI, LeetCode, and Meetups - JSJ 644

Crafting Code and Community: AI, LeetCode, and Meetups - JSJ 644

In this episode, they dive deep into the world of coding, meetups, and the evolving landscape of technical interviews. Join them as they explore the fascinating use of OpenAI's technology for coding assistance, the challenges of setting up impactful meetups, and the intricacies of mastering LeetCode problems.Our experts share invaluable insights—from leveraging AI tools like GPT to generate code effectively, to the essential strategies for problem-solving during high-pressure technical interviews. They also touch on the importance of deliberate practice, group support, and finding the right mindset for tackling coding challenges. Plus, hear personal stories about the benefits of taking breaks, the role of LeetCode in honing coding skills, and the shift in interview styles towards speed and pattern recognition.Sponsors Wix StudioSocialsAnatoliy D. ZaslavskiyLinksNYC LeetCode SquadPicksAJ - Yumi and the Nightmare Painter by Brandon SandersonAJ - The ChosenAJ - Beauty & The BeatAnatoliy - Authentic relatingAnatoliy - Neurodivergent Guide to the WorkplaceCharles - Challengers! | Board GameSteve - Myspace celebrates its 21st birthday. Do we still need it?Become a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

13 Aug 20241h 9min

Overcoming JavaScript Load Issues: Import Maps and Performance Enhancements - JSJ 643

Overcoming JavaScript Load Issues: Import Maps and Performance Enhancements - JSJ 643

In this episode, they dive deep into the intricate world of JavaScript loading and web performance. Join the panel with insightful discussions led by Dan, Charles, Steve, and special guest Yoav Weiss—an expert with extensive experience in web performance from his time at Google, Akamai, and Shopify.They explore the latest initiatives aimed at improving ES modules, import maps, and the challenges faced with script loading, especially when dealing with web workers. They uncover the critical role of sub-resource integrity, the successful integration of integrity support in Chrome and Safari, and the urgent need for advanced import map solutions for large applications.They also delve into the nuts and bolts of optimizing web performance, including the impact of script execution on browser responsiveness, bundling techniques, and innovative strategies for managing resource download priorities. Tune in to hear about the latest developments, engage with provocative questions, and discover ways you can contribute to the ongoing work of the W3C web performance working group. Plus, stay for heartfelt moments, personal anecdotes, and practical recommendations from the speakers.  SponsorsWix StudioSocialsLinkedIn: Yoav WeissPicksAJ - Jason Bourne 5-part TrilogyAJ - Crucial MX500 has dethroned SP as my pick for best value server SSDCharles - Imaginiff | Board GameCharles - A Quiet Place: Day One (2024)Steve - How Does OpenAI Survive?Become a supporter of this podcast: https://www.spreaker.com/podcast/javascript-jabber--6102064/support.

8 Aug 20241h 35min

Populärt inom Business & ekonomi

framgangspodden
varvet
badfluence
svd-ledarredaktionen
rss-borsens-finest
uppgang-och-fall
avanzapodden
lastbilspodden
rss-dagen-med-di
borsmorgon
fill-or-kill
affarsvarlden
rss-kort-lang-analyspodden-fran-di
tabberaset
kapitalet-en-podd-om-ekonomi
dynastin
rikatillsammans-om-privatekonomi-rikedom-i-livet
montrosepodden
rss-inga-dumma-fragor-om-pengar
rss-en-rik-historia