React Testing Tutorial with React Testing Library and Jest

React testing crash course using Jest and React testing library.
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0:00 Introduction
0:44 Why testing is important?
2:34 React Testing Crash Course
16:00 Jest vs Testing Library?
17:00 React Testing Real World Example
34:40 React Jest Mock Async Data Testing Example w/ Axios
41:13 Outro

[@berkinakkaya981]

You made the whole process look extremely simple. Great tutorial, thanks!

[@shawn.builds]

The testing library gets updated/refreshed so frequently, your video was the most relevant and straightforward. Thanks so much!

[@exequielmleziva4599]

For those having issues with Axios in jest, put this in your package.json user the 'scripts' object: "test": "react-scripts test --transformIgnorePatterns \"node_modules/(?!axios)/\"", It worked for me, hope it works for you too.

[@Corntrop]

Tdd was always weird to me but after this tutorial it makes sense. Thank you so much.

[@eprisrichardson678]

You always explain things in a way that even a kid could understand. This was very helpful. I'm using Mock Service Worker as recommended in the Testing Library docs, so I guess my mock API will be setup differently. I just have to figure that out. Thanks for the tutorial!!!

[@luffymonkey6967]

Yes!!! Exactly the kind of video i was looking for and from an amazing channel that I like. Just started watching recently and your video tutorials are really good!

[@jonathanbriceno3865]

Extraordinary video, all the content is very useful because you explain in a perfect way all the concepts of testing. It would be great to see other videos on this important topic. Immensely grateful.

[@wmv1990]

Excellent tutorial, love it, thanks Lama Dev. For anyone struggling with JEST intelli-sense not coming up in Visual Studio code.(automatic methods and variables suggestions popping up) Just add a file named ' jsconfig.json ' at root level i.e in your top project folder and paste below code in that file. { "typeAcquisition": { "include": [ "jest" ] } } Probably restart VS code to be sure it got embedded.

[@carloscambon5402]

Thank you for your simplicity. You make it very easy to assimilate.

[@som_girl6702]

You’re a great teacher. Few minutes into your video, I understood testing without prior knowledge of JS testing

[@ozzyfromspace]

Okay, while I'm riding the high of confidence you gave me about TDD, lemme start working on a react project with this approach :) . Thanks, Lama Dev!!

[@jasonma1904]

Nice tutorial. Explained everything so well and was easy to understand.

[@PattyBeautCode]

love your contents ! and waiting for more test tutorials with the project you have built ! 🥰

[@okorojohn7788]

Nice one from Genius Lama. Many thanks for wonderful lectures you dish out.

[@SimPwear84]

Wow!! This is world class content 👑. Looking forward to more testing tutorials. Integrated testing 🔥 Redux 🔥 Node backend 🔥 But it is just a wish 😭😭😭

[@gonzalowilliams]

Thanks Bruno! Amazing playlists. Thanks for your time

[@corinapelichowski2950]

Right, it’s hard to find relevant KZbin tutorials because everything in the tech world is changing so fast and things get old too quickly. HOWEVER! This is the best React Testing tutorial I have come across so far. It’s relevant, to the point, and super easy to follow along. I highly recommend going to the git repo, downloading it, deleting the test file, and follow along. That way you can learn how to test without getting overwhelmed with learning the components too. 10/10

[@michiharuono4050]

This is a GOLD content. Thanks Lama! Please make videos with TDD :)) I will definitely watch all of your videos!

[@sharathjayagopal]

Great tutorial!🔥🔥🔥 Learned a lot 👍👍👍. Thanks so much and hope to learn more from you in the future.

[@ouniradoin7027]

you are amazing i never saw a tutorial like that with a nice explanation

[@azfacts9968]

That was great 👍 need more videos on testing library and please also mentioned source

[@alainroos5383]

Very good tutorial as always ! Thank you

[@musab9621]

Awesome video we would like more content like this testing and integration testing

[@mdalimran7926]

Wow! It's really a great video about testing. We're expecting a series video about testing PLEASE... 😍😍😍

[@khangle5968]

Liked before watching because I know this is gonna be an amazing video! Thank you!

[@caservtom7485]

Lama, thank you. I learned so much from your videos.

[@ayushshende4290]

Big Fan Lama, amazing content as always. Just a request, if you could make some tutorials on web3 and dapps development.

[@vijayaganthsivalingam9789]

it's great one. We need some more real world examples. Thanks!

[@marufmarzuq]

Thank you friend for this amazing tutorial ❤️

[@mattsmith541]

Excellent tutorial. Thanks a lot!!

[@mD-mp8bb]

Entrance Song👍👍 I knew Jest and react testing library but I watched the course again.

[@grogu4344]

good job man, more testing video with this library is appreciated! :) Can you do also a video with react and cypress? you suggest this library for testing?

[@adebisisheriff159]

Thanks for your simplicity

[@AbhishekKumar-pe5lg]

AWESOME VIDEOS, We would like to have more videos on react testing. Thanks

[@worldbest3097]

thx! always waiting and watching!!

[@arifhusainsoudagar8869]

Awaiting for this 😇 thank you

[@mfion1]

great video and good code organization

[@user-sf7yg1oo6x]

Wow this is very Goood tutorial. Thank you. and Could you explain cypress end-to-end testing also?

[@dalestewart]

Good introductory tutorial using TDD.

[@manojkumars995]

Thanks a lot this made me understand how TDD works

[@viniciusm.m.7822]

Obrigado, meu brother! God bless you!

[@haciendadad]

GREAT Video!! Man, I HATE unit testing!!! Now I joined a new team and they assigned me to get the teams unit test coverage to be at least 85%. All our code is in React, so I am hoping that I can use this test library because it looks a lot more fun than the regular jest. And that Wallaby VS Code extension is awesome! I might even do some unit testing on the weekends? uh, maybe once or twice only. :-) Definitely subscribed and liked!! I really like everything about his testing style. Good pace, great examples! I hate super simple examples. And the length isn't too long, well done sir! #HatTip!

[@fichamann1527]

I was afraid of test but your tutorial is easy to understand.

[@sherlya6440]

Good Tutorial for beginners. Thanks

[@daliovic24]

This was extremely helpful!

[@noisinnang8371]

Thank you very much. I would also like to see a video on testing sign-in with Google and using some kind of authentication. I also want to see more videos on React or Next.js projects with MySQL

[@dansalomon7112]

Awesome tutorial !👑

[@xcrxwadda8287]

I literally love your projects,,, please more MERN projects

[@mahendranath2504]

Thank you so much for the excellent content 👍👌🙌❤💕

[@ashrafshehata6566]

nice tutorial and easy to understand

[@ozkanselcuk1735]

This channel without any other source can make you a full stack developer. Again great job and amazing content Safak.

[@diegocodes1202]

Don't come here talking shit man

[@picklenickil]

Ayy... Lama back again with another banger..

[@zackOverflow]

Hi, thank you for the content. I like to ask, can I apply the same concept as in this video to test React Native App?

[@tauhidhasan5527]

Thanks it is cristal clear to me now

[@shahemhaddad2717]

Thanks for the good content, I have a question about using Jest on Nodejs app, after a long search I found that I have to use babel as a compiler (babel-jest) to be able to work with ES6 syntax. are there a way to deal with it the same way you did here for react app? Thanks a lot 🙌

[@adejumoahmad2679]

Thanks so much lama dev, i have always wanted to learn tdd but didn't knw how to go about it 😢

[@jonmaridandal3213]

This is what i needed right now

[@mohamedabdulla8097]

Great. Want more in this topic

[@alihafezis]

very nice. please create another tutorials about react testing library 💪🤟

[@manishachollangi3874]

Loved it❤❤.. thank you so much sir, can you please make videos on react with redux saga sir

[@RavindraSingh-lp9pl]

@Lama Dev...kindly make complete course on Jest Testing

[@ogbuezekiel7400]

LamaDev is the man of the year!!! 🥰

[@toomanyarguments]

hey, i have a very often crucial question. i have to test a component which gets a setState function as a prop, how can i mock this setState function while testing the component?

[@AhmedAdel-xg1cm]

Thank you friend for this amazing tutorial you are my hero :) , could you please make restaurant management api using node js

[@hsingh110]

a really great tutorial, thank you so much! I was able to follow and understand up to 36th minute. Why do we create a __mocks__ directory and an axios.js file in it and not use them?

[@Endrit719]

Earned my subscribe

[@Leonavancini]

This help me a lot to understand how its works , its a very good tutorial and simple. All testing cases need to be very methodical right? This take me a lot of time to made it, now I understand why some companies don't have tested applications, BTW I don't know if I'm right but it's necessary to make a test to check if error message will visible in error case right? I wanna try to make it that test.

[@natyt.1503]

really helped me out with this one thanks...btw, do you do any BDD by any chance...something with Cucumberjs and gherkin would really be much appreciated...thanks for all your vids

[@divewithadarsh914]

Love from India.❤️ Your teaching style is just awesome. Much better than the millions of web dev related youtube videos, the way you explain every single little thing with too much simplicity is just beyond admiration. Please start uploading the playlist of web technologies i bet you will be the one of the most successful and the most Praised youtuber in the upcoming years.We need that the most. God bless you ❤️

[@karlithoscolima]

More testing pleaseeeeee

[@hellocat7760]

i will need more about advanced testing using jest/vitest, lama you are super fast and Smart Dev. Your teaching style is amazing. ✨✨jjj

[@petermuturi4402]

This was awesome

[@darmar8609]

Thanking you! 👏

[@JohnDoe-rh2fw]

Great job, for real 👍

[@piyushmahapatra5402]

damn, are you a demi god ? this is world class content.

[@isahbala2540]

Please what microphone are you using for this video

[@nurettinsen473]

mocha chai for backend please, because you You explain the topics very well. and We are waiting for examples on redis topic (:

[@eghambaramsubramanian3188]

Wow Lama.. Can you make react developer tool usage video

[@061_suryak4]

hi, i got error like could not find react-redux context value; please ensure the component is wrapped in a but i also wrapped by provider within store and i change old to latest version please gave me a any solution

[@tupac0199]

Thanks lama.

[@codeenv]

wow this is awesome and great looks cool and please lama can you create an app with email verification using the MERN STACK?

[@ryeasv]

thanks alot

[@masterkey-do3jv]

great tutorial on internet of jest

[@Rick-pz1ju]

Yoo, thanks, now All my react counters Will be tested hahaha ver Nice video

[@cristianparadagualteros3305]

This is amazing, and among other things I learn English

[@snorlax-frontend]

i want to know. when did u start learning in this field

[@rajankhunt7002]

Good Video, Good Explenantion, Good Content and My good comment.

[@gbolaboaluko5576]

Are you going to do a tutorial on react native

[@mauroinde]

Maybe you can do the next of this with redux passing data to a component in testing ?

[@dalyryl]

ooh sheeshhhhh here it is!

[@kavinkumarb7323]

Need more testing videos 😞

[@KaranSethia24]

does rtl and jest work with react app created with vite??

[@sarfarajshaikh6038]

Can we have a video on svelte testing?

[@manojrao9867]

Wonderful.

[@rampritsahani281]

Thank you for this wonder full testing video ca you please create with redux toolkit

[@sachinporwal4275]

Make one video for node js Testing. Means how to test backend in MERN Application

[@HimanshuSharma-zi5ve]

this guy reads my mind 😂

[@LopsidedView514]

Can somebody tell me which testing extension is he using?

[@mehrdad1068]

Hi lama please make tutorial for building marketplace like opensea 🌱🌻

[@geepy5708]

Why do we need to perform testing operations?