JSJ 341: Testing in JavaScript with Gil Tayar
JavaScript Jabber27 Marras 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

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JSJ 292: CosmosDB with Kirill Gavrylyuk

JSJ 292: CosmosDB with Kirill Gavrylyuk

Panel: Charles Max WoodSpecial Guests: Kirill GavrylyukIn this episode, JavaScript Jabber speaks with Kirill Gavrylyuk. Kirill is a dev manager at Cosmos DB, and works professionally with Azure CosmosDB. Kirill is on JavaScript Jabber to talk about what CosmosDB is in the world of development technology. Chuck and Kirill discuss the nuances of this database technology, how it is implemented, and how to manage and migrate data, among other great features.In particular, we dive pretty deep on:What is Cosmos DB?Bring your data anywhere your users areIt is a websiteMultimodel databaseWorks with Mongodb CassandraStarted as database DBThroughputKey data pairsSwitching from MongoDB to AzureHow do you decide what goes into this? It looks like an everything database.Migration pathUses cases, problems solvedSupporting APIsDoes it only exist in the Cloud? An emulator is available.Subscription info.And much more!Links:@kirillg-msfthttps://www.linkedin.com/in/kirillgavrylyukPicks:KirillShared Debugging with VS Code - KeynoteCharlesUSB Powered Monitor on Amazon    Special Guest: Kirill Gavrylyuk. 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.

19 Joulu 201730min

JSJ 291: Serverless For JavaScript with Gareth McCumskey

JSJ 291: Serverless For JavaScript with Gareth McCumskey

Panel:Charles Max Wood Aimee KnightAJ O’NealJoe Eames Special Guests: Gareth McCumskeyIn this episode, JavaScript Jabber speaks with Gareth McCumskey about Serverless For JavaScript. Gareth leads the dev team at Expat Explore in Cape Town, South Africa. Gareth and this team specialize in exploring the Serverless realm in JavaScript. The JavaScript Jabbers panel and Gareth discuss the many different types of serverless systems, and when to implement them, how serverless system work, and when to go in the direction of using Serverless. In particular, we dive pretty deep on:What does it mean to be Serverless? Since platform as a service.Microservice on Docker Firebase“no backend” Backend systems Cloud functions and failure in systems How do you start to think about a serverless system? How do decide what to do?AWS Lambda Working in a different vendorNode 4 Programming JS to deploy Using libraries for NPMHow is works with AWS LambdaWhere is the database?More point of failure? Calls to Slack?AuthenticationMicro ServicesElastic Bean StalkStatic Assets, S3, ManagingTesting the services Integration testingAnd much more! Links:@garethmcc@expatexploregareth.mccumskey.comhttps://github.com/garethmccserverless.comPicks:AimeeServerless Architectures NG-BE Conference AJDocumentary on EnronHard Thing about Hard Things CharlesServerless FrameworkThe Storm Light Achieves Avengers: Infinity WarGarethBuilding MicroServices Skeptics Guide To The Universe PodcastExpate Explore Joe Wonder -  MovieGloom In Space - Board Game  Special Guest: Gareth McCumskey. 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.

12 Joulu 201756min

JSJ 290: Open Source Software with Dirk Hohndel - VMWare Chief Open Source Officer

JSJ 290: Open Source Software with Dirk Hohndel - VMWare Chief Open Source Officer

Panel: Charles Max WoodAimee KnightCorey HouseJoe EamesSpecial Guests: In this episode, JavaScript Jabber speaks with Dirk Hohndel about Open Source Software. Dirk is the Chief Open Source Officer at VMWare and has been working with open source for over 20 years. Dirk duties as the Chief Open Source Officer is to engage with the open source community and help promote the development between the community, companies, and customers.Dirk provides historical facts about open sources to current processes. The discussion covers vision and technological advances with languages, security, and worries of using open source software, view/consumption and burnout on maintaining a project. This is a great episode to learn about more different avenues of Open Source.In particular, we dive pretty deep on:What does the Chief Open Source Officer do?What is really different and has stayed the same in open source?Technological advancesGood engineering and looking ahead or forward100 million lines of code running a car…This is in everything..Production environmentsSecurityBugs in the software and the security issuesScaling and paying attentionWhere should we be worried about open sourceNotation and data setsWrite maintainable softwareHow does VMWare think about open source?View and Consumption of open sourceThe burnout of open source projects - how to resolve this abandonmentTo much work to maintain open source  - not a money issueScaling the team workload not the moneyContribution and giving backCompanies who do and don’t welcome open sourceWhat to do to make a project open source?Adopting an APIAnd much more!Links:@_drikhhVMWareDrikhh - everywhere!https://github.com/dirkhhPicks:AimeeDe Contact Dodow DirkTrack This Critical ThinkingCharlesNicholas Zakas - Books CoreyFun Fun Function ShowJoeDice ForgeConcept of empathy  Special Guest: Dirk Hohndel. 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.

5 Joulu 20171h 14min

JSJ 289: Visual Studio Code and Live Sharing with Chris Dias and PJ Meyer LIVE at Microsoft Connect 2017

JSJ 289: Visual Studio Code and Live Sharing with Chris Dias and PJ Meyer LIVE at Microsoft Connect 2017

Panel:Charles Max WoodSpecial Guests: Chris DiasPJ MeyerIn this episode, Charles is at Microsoft Connect 2017 in NYC. Charles speaks with Chris Dias and PJ Meyer about Visual Studio Code and Live Sharing. Chris and PJ explain more on their demo at Microsoft Connect on Live Collaborative Editing and Debugging. Learn more about the new features with Visual Studio Code and the efficient workflows with screen sharing, and much more.In particular, we dive pretty deep on:Demo of Live Collaborative Editing and Debugging explainedNew Features with VS CodeDeveloper productiveDebugging pain pointsGetting feedbackNew in VS CodeLanguage support and Java DebuggerLive ShareDebugging from different machines and platformsMulti-Stage Docker FileTypeScript compilerMore on debugging with Cosmos dbDebugging in the Cloud?Docker ExtensionsData BricksUpdated python toolsComing up with Visual Studio Code in the next 6 monthsTypeScript and RefactoringGetting the word out about code -  Word of mouth?Number of people using VS Code?Envision for what VS Code is becoming?Preparing for a keynote and processes?And much more!Links:https://code.visualstudio.comhttps://github.com/chrisdiasGitHub.com/microsoft@codePicks:ChrisPizzaPJDeliCharlesCoupon Pass for tourist in NYC Special Guests: Chris Dias and PJ Meyer. 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.

29 Marras 20171h 2min

JSJ 288: TypeScript with Amanda Silver

JSJ 288: TypeScript with Amanda Silver

Charles Max WoodSpecial Guests: Amanda SilverIn this episode, Charles is at Microsoft Connect 2017 in NYC. Charles speaks with Amanda Silver. Amanda is deemed the  TypeScript and future of JavaScript guru, and this year's speakers at Microsoft Connect with Visual Studio Live Share. Amanda shares what is new with TypeScript and how that is a kind of subscript to JavaScript. Amanda explains the big picture of TypeScript’s inception and where she believes the language will be most efficient and effective for JavaScript and TypeScript developers.In particular, we dive pretty deep on:What is new in TypeScript?Keep JavaScript and TypeScript alignedTypeScript is implemented to create larger scaled applicationsIntegration with VS Code, etc.Building better tools for JavaScript DevelopersWhen would this be taken on by usersDefaults in Visual StudioTypeScript replacing JavaScript type serviceTypeScript is written in TypeScriptChakra runtimeDiasporaThe different faces of JavaScriptOptimized JavaScript runtimeLanguages should be created with toolingA satisfying tooling experienceFoot GunsNew TokensEco-systems and metadataMulti-phaseMinimum common denominator constantly changingCollaborating on the same codeOpen Source and the impactHow to move to open sourceContributingThe next thing for TypeScriptThe future of JavaScriptAnd much more!Links:@amandaksilver Picks:AmandaVisual Studio Live ShareInstinct of learning technologyCharlesVisual Studio Live ShareAI   Special Guest: Amanda Silver. 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.

22 Marras 201730min

JSJ 287: Blockchain and JS with Ari Lerner

JSJ 287: Blockchain and JS with Ari Lerner

Panel:Aimee KnightAJ O’NealCharles Max WoodSpecial Guests: Ari LernerIn this episode, Java Script Jabbers speak with Ari Lerner. Ari is the author of NG Book: The Complete Book on AugularJS, Full Stack React,  and a few others.  Ari co-runs newline.co a platform that teaches about the Block Chain, Ethereum, New Contracts, etc. Ari mentions a few upcoming books on Machine Learning, Elixir, and react Native.Ari gives a rundown on what the Block Chain is about, and an explanation of a Hash. Ari explains the value of a Hash and 6-bit strings of a Hash. Also, Ari explains the exchange of currency in Bitcoin and the rate of exchange in the Block Chain. Next Ari covers web 3.0 and much more.In particular, we dive pretty deep on:What is the Block Chain?A Hash?The blockchain is an order of ledger.The blockchain is a  list of transactionsHow is a Hash used?Sha 256Bitcoin and Block ChainsWhat If two machines get the same answer?Describe a transaction in a blockchain?Exchanging currencyThe cost of BitcoinWeb 3.0Everything on the Block Chain is public!Where else is Block Chain is used besides bitcoin type currencyPublic Key.What should JS developer be doing to prepare?And much more!Links:https://www.ng-book.com/http://www.newline.co.bw/The History of Money@AuserStack.ioPicks:AmieeArticle -  Learn Block Chain by Building OneThe Source BarCharlesMicrosoft Connect - Meet up at 7pmStranger Thing Season 2AJSpice Labels and Spice JarsMarriageAriMoving to NYCLearn Block Chain by Building OneSpecial Guest: Ari Lerner. 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.

14 Marras 201757min

JSJ 286: Creating a CSS-in-JS Library from Scratch and Emotion with Kye Hohenberger

JSJ 286: Creating a CSS-in-JS Library from Scratch and Emotion with Kye Hohenberger

Panel:Amiee KnightCharles Max WoodSpecial Guests: Kye HohenbergerIn this episode, JavaScript Jabbers speak with Kye Hohenberger. Kye is a developer and co-founder of Side Way. One of Kye’s most notable works and library is Emotion, a CSS and JS library.Kye talks about what CSS and JS library is about in the context of the Emotion library system. Kye discusses why this is practical for the writing process, in comparison to other types of tools that do similar jobs. Kye explains the how this tool reduces the number of lines of code and is compact and clearer.In particular, we dive pretty deep on:What is a CSS and JS library?Controlling CSS with JS, what does this solve?Style bugsWhat kind of styling are you using vs. complex styles?Media queryA more declarative styleUsing SassWhere do you see people using this?Class names and you can apply to anythingHow Emotion works!Style tagsObject stylesWhat are some of the problems you are solvingReact Emotion - dynamic stylesHow does this compare to other style components?Glamor StylesHow do you test something like this?Just Glamor React with EmotionCan people use the Babel pluginPure flag and function callsAnd much more!Links:Emotion.shEmotion-js/emotionemotion.now.sh@TKH44Picks:AmieeArticle on MediumAntibiotics and SteroidsRX Bars CharlesDisney Emoji Blitz How To Get A Job  -  JavaScriptJabber.comKyeStyled SystemFace PaintAussie Bites Special Guest: Kye Hohenberger. 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.

8 Marras 201750min

JSJ 285 : Finding a Job Even If You're Not a Senior Developer by Charles Max Wood

JSJ 285 : Finding a Job Even If You're Not a Senior Developer by Charles Max Wood

Panel:Charles Max WoodIn this episode of JavaScript Jabber, Charles does a solo episode talking about entrepreneurship and the topic/course on “How to Get a Job.” This is an informative episode for those looking for a job as a developer and how to prepare your resume for your career search. Charles covers the core pieces of the course and specific areas of tailoring your credentials for the job you want to acquire.In particular, we dive pretty deep on:How do I get a great job? Companies are only hiring Senior Devs.Your selling point as a Jr. Dev.Framing your experience for the companies to better see your experience.I don’t want a ( this kind of boss)Feeling like you are making a difference in your job.Who do you want to work for, with, where, and how, etc?Working in a facility or remotely. What do you want?Check out the meet-up places or workplaces (WeWork), GlassdoorCheck out the people who work that these companies, LinkedIn.Check out company’s Slack rooms, forum, etc. to make connectionsVisit the companies personallyLook into contacting the Meetup OrganizersBuilding rapportResume mistakes - how to properly format it so it is skim-ableTop 3 bullet points and tailor you resume for each jobUnnecessary material in your resume - again tailor to the companyImportant material to include on your resume, contributions on projectsThe cover letter - How to do this correctly with a personal touchWhat to do when you get the interview - the offer!And much more!Links:devchat.tv/get-a-coder-job-full-accessfull-accessWeWorkExpert Salary NegotiationSupport 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.

1 Marras 201746min

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