Cypress in 100 Seconds
ฝัง
- เผยแพร่เมื่อ 19 ก.ย. 2024
- Cypress is a complete testing solution for web developers. It uses a browser-based test-runner to visually validate your JavaScript code and makes test-driven development fun.
#webdev #js #100SecondsOfCode
🔗 Resources
Cypress Docs docs.cypress.io
TDD Explained • Test-Driven Developmen...
Free E2E Course from @DevAcademyCom courses.dev-ac...
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🎨 My Editor Settings
- Atom One Dark
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🔖 Topics Covered
- Testing with Cypress Basics
- What is Cypress?
- Cypress vs Jest
- Cypress vs Jasmine
- JavaScript Testing
- JavaScript TDD
- JavaScript BDD
Ah yes, automated UI testing. That thing I'm definitely absolutely positively going to start doing... one of these days.
I have never seen a comment I relate more with.
I basically exclusively test network calls using cypress these days. Powerful framework.
Meet converted pyramid, tapes server and unit size discovery.
So all your PR's get accepted with 0 unit tests?
@@attila2246
Me: Hey, I just created a new button component. Pls review.
Me: OK, but you didn't add any unit tests.
Me: uhhh yeah, but... when I opened the browser and clicked it, it did the thing.
Me: ...........eh, good enough for me **merges PR**
I don’t even do web development but these videos are just too entertaining
Can confirm, I’ve been sucked in.
It's interesting that for someone it's entertainment but for others it's boring af
Same.
Suggestions for 100 second tuts:
- Oauth2/OpenID Connect
- Swagger/OpenAPI 3
- Logging/Monitoring
- Caching solutions
- Phaser 3
SAML?
julia
GSAP too
WebRTC
Lisp
Been using Cypress for a year. Absolute game-changer over Selenium, webdriverio, and protractor.
Those tools are not for testing but for scraping
have you ever looked into Playwright? if so, what are your thoughts?
@@StEvUgnIn That is just not true.
Both WebdriverIO and Protractor were built for testing purposes. While Selenium might just be a tool for browser automation, it has seen wide use for testing purposes as well.
@@StEvUgnIn You’re not wrong that it can be used for scraping. Any E2E tool would do the trick well. It’s primary purpose thing is testing. Puppeteer is more what you’re thinking of for scraping.
So if I am still using selenium, you would recommend me to change to cypress? ;-)
Cypress is pretty fun, but sometimes really tricky.
The funniest part of it for me was when I had to do conditional testing, and I was new to Cypress. I relied on the docs and I found a section for conditional testing. It states:
"don't worry, there are ways you can do with conditional testing! for example, you can... remove the need to do conditional testing!"
Thank you Cypress, very cool.
PS: No, I couldn't do that
I have to say it again: your „video-editing“ and „story-telling“ skill is OUT of this world 😄
Thank you so much for your work 🙏
Been using cypress for 3 years after using selenium for god knows how long. I highly recommend this for TDD, your feedback cycle is almost immediate, you aren't coupled to chrome/driver versions, it's altogether the best way to write your integration tests first, see them not work, then repeatedly do the next thing it said didn't work. Simple.
Did you solve the lack of support of iFrame and multitab from Cypress?
Thank you Jeff for another amazing 100-second tutorial. Anytime Jeff explains a concept, it becomes easier and more approachable for me.
I will almost certainly never use this, but the clarity and quality of your videos is so outstanding that I can’t get enough. Thanks!
Cypress is awesome! I've spent more time debugging the jest config than testing the code base !
For me, I moved from Cypress to Playwright. It's much faster and can do almost everything Cypress can!
That, and, so much of Cypress bugs me. Its Promises are not actual native browser Promises and can't be awaited. The magic strings for assertions. And if I wanted to see how many rows a table has, then submit a form and check if that table now has count + 1 rows, Cypress seems to actively hinder me. I found Playwright much more intuitive, friendly and robust. The only thing I really liked about Cypress was its execution window where you could "time travel" as Jeff says.
@@JPeetjuh The promises thing is super annoying, and agree that the magic strings are not my favorite way of doing assertions.
Even though it has a promises-like API, Cypress is actually a command queue, not a promise chain. The use of promise-like syntax (and especially the docs trying to say it's promise-based) is very misleading, 100%.
The cross domain restrictions and local single threading are also pretty annoying.
Good thing about using these tools is that it also helps you to narrow down use-case of the application you make and only implement essentials.
Absolutely love your videos.
I have been using Cypress for over a year now and I don't want to go back to those Protactor, Selenium stuff.
Also, Cypress has something called `data-cy`, which is added to the elements that you want to loop up in your tests. `data-cy` parameter can have a unique name and enables the test to directly find the element in the dom. This is an amazing feature that we use everyday and avoid looking up using html and css tags as they can change.
This is the first time I've ever responded to a TH-camr request ever in the decade of watching TH-cam videos but yes, I would like to see more algorithm videos. Excellent explanation of the search. This feels weird. Great work on everything you post.
I've literally started working with cypress for our application at work this morning. Awesome timing as usual
I just started testing with Cypress this year, it's been real cool to use. Thanks for the videos as always!
How's it going so far man?
Cypress is seriously such a game changer
the line "to figure out precisely why your code sucks" is so hilarious to me
😁
Litteraly started learning Cypress yesterday, its so amazing for testing
Thank you for the quick video. I am on a different team temporarily and this helps me better understand the purpose since I have mostly written backend code.
Starting into web development is great especially when you are able to enjoy such amazing content
This and TestCafe make E2E an absolute breeze for any web dev.
I had to make the choice of using testcafe over cypress for my company 3 years ago. Main reason was cypress didn't support safari, nor s.
I’m a big cypress advocate. Absolute game changer!
If it were me, I wouldn't use it for unit or integration tests. But it's amazing for UI or E2E tests
You forgot to add the part about nobody ever maintaining the tests
Been using cypress for 4 years. It's incredibly powerful and I love it.
I like Cypress, it really does work like a charm.
One thing to note is that the Electron runtime is bundled / baked in, which arguably is pretty stupid.
There is no way to install Cypress headless, even though most people use a real browser to run tests.
> There is no way to install Cypress headless
I was wondering how I might use it to do my automated testing in gitlab-ci. The docs mention being able to do this, though.
@@DaraulHarris Cy can absolutely run in CI. Doing an npm install also downloads the cypress binary, which is fairly large, and comes with electron baked in.
There is a headless mode for your tests 😉
There is headless mode, though Electron included no matter what.
The "slim" docker CI image is roughly 600 mb. To be fair this includes Chrome and FF also.
idk what a rails dev like me is watching this for but that looks cool
From my experience using Cypress, I can see it really makes testing fun. For me, the fun part is watching Cypress run the test and everything passes. Definitely give it a try if you haven’t. Might end up loving it
I've been avoiding learning testing for years just because it was so boring for me. Even when I sat down with myself and asked myself what technologies I should learn to become a better well-rounded full-stack developer, testing was in there, but was always the last one I wanted to do.
So I learned a few technologies, but never picked up testing. But this framework makes me actually want to learn it, seems so cool!
@@galgrunfeld9954 I ran away from testing for so long until I started seeing the importance. Especially working with a team with constant update, testing would catch a lot of bugs before it gets to staging or production. These frameworks have made it enjoyable so that’s a bonus. Funny thing, I’m the one now rooting for testing
@@joshuaokoro9447 yeah, I'm very much aware of the benefits. Luckily, or maybe not, I so far worked only in small teams and did a lot of things independently so TDD wasn't much of a necessity, but I can definitely see it being crucial in so many places.
I’d love one of these videos for playwright! I tried cypress and while it was really cool (especially with the test runner) it felt a bit dated imo. The lack of native promises really hurt my experience.
I prefer playwright over cypress, it's more robust though ofc looks less fancy than cypress.
What cypress killed for me is them not support any http/3
I really like using Playwright, but it just doesn't work in CI for more than a week before something explodes and it stops building
I should look into putting it into a docker container
Also left Cypress for Playwright, as getting our auth in all the tests was a nightmare in Cypress
Cypress's coming support for cross-domain communication (and the Sessions API) should make auth a lot less painful. Of course, "It's coming" is not the most useful answer. ^^;;
Really cool. Planning to use it on my next side project.
I was about to launch my app to production without testing at the end of the week.. Thanks, that seems to be exactly what I need !
Been using Cypress with TestingLibrary and MSW for a while and they are great for getting tests done fast.
I worked as an automation tester using Cypress, it was cool.
Just started to write tests for my project, and see this today
I've just experienced my first BSOD for a while , while watching this video. it makes sense now .
100 Seconds video ideas:
- Backing up hard drive
- Wiping history
- Getting some RAM a few megabytes
- Logging in and logging out
thanks for this one bro, I needed it
We've ended up using playwright instead of cypress, had some problems with ts with cypress, and playwright setup was just smooth as butter
this is awesome, i didnt even know what cypress was 100 seconds ago
This content is always awesome. I am always curious how you can manage so many different techs, do you have experience using them throughout your career? Or do you just learn it like 1 week and make a video of it? or how? I am always amazed by how you deliver your content.
Sir, waiting for more rust lang and golang videos 🙌
Same here
Rust and *elixir videos
just what I needed! 🤩
I'd love to see a purescript video! Maybe even a beyond 100 seconds on it too.
Can you make a video about Data Oriented Programming and ECS (Entity Component Systems) ?
Okay, I guess my company just made another decision and that is which testing tool to use for front-end. :D Thanks Jeff
this channel is becoming very js oriented
What are the advantages of something like Jest compared to Cypress?
I've been waiting for this video. The automatic loading feature doesn't always work properly (doesn't work for XHR requests). But It's 100x better than Selenium. Highly recommended.
I'm using Playwright. Amazing tool. Build a suite to test all our countries (work for a B2B supplier)
Excellent video as always! And now that you are delving into test territory, how about a nice vitest in 100 seconds? I think its time!
My bud who I work with is from Cyprus, he's going to go crazy after seeing this video...
Likely for both the name and what it does.
E2E test is great if used properly. Never test all the things only with E2E. Make a lot of unit and integration tests. Then, test the end-user journey with E2E test.
Could you explain real quick why?
@@tomascarignano5002 It's mostly about cost, e2e test take longer to run, longer to develop, are more brittle (prone to failure) and more time consuming to maintain than integration/unit tests.
Next video should be “Types of tests” in 100 seconds.
finally found what I needed. thanks Jeff !
Was just looking at javascript testing! How do you always come up with timely content? Thanks again!
I'm trying my hardest to dig myself out of tutorial hell but you keep making these awesome videos that make me want to dig myself deeper. Fireship is not good during tutorial rehab.
This is so cool.
I really love cypress ❤️ Even now I have to use React, I feel save to delivery some quality 🙌🏻
Playwright is a great lowkey Cypress alternative.
Nice! Does any of you Cypress pros know if it allows for checking the order or Redux actions in the Redux Chrome tab?
Fireship is a modern hero
Can you do one on Cypress Hill next?
Currently trying to decide between Cypress and Playwright for e2e testing on a large project at my job. What's the chance you have a playwright video on the way? :) Great stuff as always.
More about cypress please and also about load testing of APIs
good content, as always.
'Love Cypress, highly recommend
I want to clarify that in many SPA projects, cypress is a bad choice, leads to flaky tests. I'd recommend playwright if you use react and etc.
"To figure out precisely why your code sucks..."
Lol! I feel called out for some reason.
I like how it just isn't "if" or even "when" anymore but straight up "why your code sucks"
This video got me into cypress, pretty f-n dope. I still need testing for Electron tho so I'm using Playwright since Spectron just got deprecated. Need to decide if I should switch from Mocha to Playwright Test as my Electron test runner.
Though reading these comments maybe the right choice is to go full on playwright. I'm still investigating. I do like how cypress works but obviously a lot of the pain points I hit already are a common thread.
Please make some videos on load testing tools
Love your videos!
Make a video about the CSV file type
You woukd just say its values separated by commas and then stay awkwardly silent for the rest of the time
It's funny how I watch these videos once and I'm like "that's neat" then a month later I'm like "wait if I actually used that it could absolutely transform my development workflow!"
Do a video of cucumber bdd integrated with cypress. This brings the three amigos together and speak the same language. Let me know if you’d like some insight as to why this approach is amazing.
I was struggling with something in webdriver and it looks like Jeff and the Algorithm (good name for a band) delivered Just In Time ;)
Cypress for UI and PactumJS for API
Liking before watching 👍🏽
Thank you! Can you please do Julia next?
Do one of your things on R! I don't think I'm allowed to say I know how to code till you do 😅💪👍🧠
What a coincidence, I was learning Cypress right now already.
maybe do some more non-frontend-oriented stuff like neural networks (tensorflow, pytorch) or some other interesting stuff like a turing machine
This is why I develop command line utilities.
Now I will defs test my own projects /s
I'm not sure I need a sophisticated tool to tell me my code sucks, I have co-workers for that!
Here is a sincere suggestion, can you please do one on julia?
These little jabs always make me laugh 0:39 😂
Cypress is love. I don't wanna touch Selenium ever again.
I enjoy your background classic. Where Can I found it?
How about making a video about new features in React 18?
Is it realy a legit way to do tdd and replace unit tests on frontends? So there would be a unit test and e2e test section in your cypress folder? I somehow like the idea but it doesnt feel natural 😂
What is "javascript business logic" ? Where is it used? As a SW Dev I need to know?
Are you fucking psychic, just needed this ❤️
I tend to use puppeteer for everything, and I've used cypress, but what exactly are the advantages over puppeteer for testing? Is it the structure/interface and framework? Can/should I use both together?
Biggest advantage over puppeteer is the builtin retries / waiting for the page to settle. No more explicit need to wait for a loading spinner to be gone - just assert the content is there, and Cypress will retry until it is or until the command times out. This sort of functionality is built into basically every command. It's amazing the amount of "just works" you can get out of that.
@@threewestwinds there are different meanings of a page having settled (DOMContentLoaded event? network idle?) , and puppeteer has them all covered. Messy wait techniques are why I quit using selenium, but that's not something puppeteer lacks at all
@@travispulley5288 By "page to settle'" I don't just mean during page load events - I mean every command you issue, which causes rerenders as data loads in, spinners, animations, outgoing requests.
Using Cypress you usually don't even need to *think* about waiting at all. I just assert or act on the desired end state. You can click on buttons that don't exist yet, and Cypress will wait until the button exists and then click on it.
It's been a couple years since I used Puppeteer. But this was the biggest benefit for me. No 'filler' commands (like "wait for element to exist, then click on it"). You just say what you want. Less code, less mental effort.
@@threewestwinds pptr has all these wait styles baked into everything. If you're trying to interact with an element that's not present, it's helpful to know that it's not present and to treat that as an error (and/or wait for the implicit timeout). Even with my lack of Cypress experience, I know you'll just end up waiting for the max timeout duration in those cases anyways if the element never appears.
What I'm getting from this is that they both do the same thing, but cypress has a friendlier companion UI? I need to do more research.
Video idea: HTML over the wire frameworks
Helpful! Thank you so much❤️
My company would not have gotten testing done as quickly as we did without Cypress.
wow OK cypress looks super cool