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We turned the Xcode simulator into a test generation machine Record your session. The test writes itself.

69,781 views • 7 months ago •via X (Twitter)

27 Comments

hayden's profile picture
hayden7 months ago

Join the waitlist here, will be onboarding people over the next few weeks!

Chris Risebrough's profile picture
Chris Risebrough7 months ago

light mode web, dark mode phone, the yin and yang of my life

Paul's profile picture
Paul7 months ago

Session recording for tests has been tried (Katalon, Squish, etc.) — the brittleness problem is real. Tests from exact UI interactions break on minor layout changes. How do you handle resilience?

akhil's profile picture
akhil7 months ago

need this asap

hayden's profile picture
hayden7 months ago

@CrossInCrypto Gotchu 🤝

Morgan Wilde's profile picture
Morgan Wilde7 months ago

This looks like black magic!

hayden's profile picture
hayden7 months ago

Haha I appreciate that! What makes this crazy is that this session wasn't even recorded on a local sim, but one running on our cloud that Claude Code was able to control thru a CLI... Xcode wasn't even running on my laptop

Morgan Wilde's profile picture
Morgan Wilde7 months ago

I've been playing around with the xcode cli tools and I have some scar tissue to know that this is HARD to get. As a dev, I'm just in awe! GG

hayden's profile picture
hayden7 months ago

🫶 would love to get you on the platform! And yea it’s insane how many prerequisite things we had to build to make this possible, super excited for everyone to get access to it!

dhruvr_43's profile picture
dhruvr_437 months ago

super techy

hayden's profile picture
hayden7 months ago

🦾🤖

Landseer Enga's profile picture
Landseer Enga7 months ago

This is wizardry

alex's profile picture
alex7 months ago

isnt this already a native xcuiautomation feature

hayden's profile picture
hayden7 months ago

Native XCUIAutomation requires an existing test target and only works if you're already running XCUITests in Xcode. Revyl records, annotates, and analyzes sessions for any app, no test code required. We decompile your actions into natural language, capture the intent, and turn it into a replayable test you can drop straight into your regression suite. Works for android as well

alex's profile picture
alex7 months ago

ah i see now, very cool! great use case then for people who might not want an entire massive Xcode install on their machine

hayden's profile picture
hayden7 months ago

Yep! The native XC ecosystem is notoriously clunky, slow, brittle, etc. as you probably know, so circumventing it is quite a time saver

0xInuarashi's profile picture
0xInuarashi7 months ago

beautiful

hayden's profile picture
hayden7 months ago

🫶

Revyl's profile picture
Revyl7 months ago

👾🚀👾🚀👾

Brandon Sladek's profile picture
Brandon Sladek7 months ago

Nice. I've been wondering about ways to improve automation testing. Does this work with iOS apps built with Expo / React Native too?

hayden's profile picture
hayden7 months ago

Yep, in fact it works best with expo and RN! Tons of synergy, for example, you can hot reload projects on your local machine direct into the cloud. Check this out

Brandon Sladek's profile picture
Brandon Sladek7 months ago

Nice, thanks! I'll have to check this out for sure.

gabz → ctrlavana.app's profile picture
gabz → ctrlavana.app7 months ago

Okay. This one I need to use. Where is it? hahahah

hayden's profile picture
hayden7 months ago

Check out the CLI! You or your coding agents can start and interact with these sessions directly from your terminal:

gabo's profile picture
gabo7 months ago

Wow…

Vincent's profile picture
Vincent7 months ago

Nice! Does it handle in app purchases / StoreKit?

Mitchell Agoma's profile picture
Mitchell Agoma2 months ago

Record-to-test captures real journeys well. The harder step is generalising selectors and data so the output becomes resilient coverage rather than a brittle replay of one device state. Related QA view:

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